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update rx (mobile builds).
[mono-project.git] / mono / mini / mini-s390x.c
blobf37b087e49d4f7d356256acf358ea642f768c88e
1 /*------------------------------------------------------------------*/
2 /* */
3 /* Name - mini-s390.c */
4 /* */
5 /* Function - S/390 backend for the Mono code generator. */
6 /* */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
8 /* */
9 /* Date - January, 2004 */
10 /* */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
14 /* */
15 /*------------------------------------------------------------------*/
16
17 /*------------------------------------------------------------------*/
18 /* D e f i n e s */
19 /*------------------------------------------------------------------*/
20
21 #define MAX_ARCH_DELEGATE_PARAMS 7
22
23 #define EMIT_COND_BRANCH(ins,cond) \
24 { \
25 if (ins->inst_true_bb->native_offset) { \
26 int displace; \
27 displace = ((cfg->native_code + \
28 ins->inst_true_bb->native_offset) - code) / 2; \
29 if (s390_is_imm16(displace)) { \
30 s390_brc (code, cond, displace); \
31 } else { \
32 s390_jcl (code, cond, displace); \
33 } \
34 } else { \
35 mono_add_patch_info (cfg, code - cfg->native_code, \
36 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
37 s390_jcl (code, cond, 0); \
38 } \
39 }
40
41 #define EMIT_UNCOND_BRANCH(ins) \
42 { \
43 if (ins->inst_target_bb->native_offset) { \
44 int displace; \
45 displace = ((cfg->native_code + \
46 ins->inst_target_bb->native_offset) - code) / 2; \
47 if (s390_is_imm16(displace)) { \
48 s390_brc (code, S390_CC_UN, displace); \
49 } else { \
50 s390_jcl (code, S390_CC_UN, displace); \
51 } \
52 } else { \
53 mono_add_patch_info (cfg, code - cfg->native_code, \
54 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
55 s390_jcl (code, S390_CC_UN, 0); \
56 } \
57 }
58
59 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
60 do { \
61 mono_add_patch_info (cfg, code - cfg->native_code, \
62 MONO_PATCH_INFO_EXC, exc_name); \
63 s390_jcl (code, cond, 0); \
64 } while (0);
65
66 #define CHECK_SRCDST_COM \
67 if (ins->dreg == ins->sreg2) { \
68 src2 = ins->sreg1; \
69 } else { \
70 src2 = ins->sreg2; \
71 if (ins->dreg != ins->sreg1) { \
72 s390_lgr (code, ins->dreg, ins->sreg1); \
73 } \
74 }
75
76 #define CHECK_SRCDST_NCOM \
77 if (ins->dreg == ins->sreg2) { \
78 src2 = s390_r13; \
79 s390_lgr (code, s390_r13, ins->sreg2); \
80 } else { \
81 src2 = ins->sreg2; \
82 } \
83 if (ins->dreg != ins->sreg1) { \
84 s390_lgr (code, ins->dreg, ins->sreg1); \
85 }
86
87 #define CHECK_SRCDST_COM_I \
88 if (ins->dreg == ins->sreg2) { \
89 src2 = ins->sreg1; \
90 } else { \
91 src2 = ins->sreg2; \
92 if (ins->dreg != ins->sreg1) { \
93 s390_lgfr (code, ins->dreg, ins->sreg1); \
94 } \
95 }
96
97 #define CHECK_SRCDST_NCOM_I \
98 if (ins->dreg == ins->sreg2) { \
99 src2 = s390_r13; \
100 s390_lgfr (code, s390_r13, ins->sreg2); \
101 } else { \
102 src2 = ins->sreg2; \
103 } \
104 if (ins->dreg != ins->sreg1) { \
105 s390_lgfr (code, ins->dreg, ins->sreg1); \
106 }
107
108 #define CHECK_SRCDST_COM_F \
109 if (ins->dreg == ins->sreg2) { \
110 src2 = ins->sreg1; \
111 } else { \
112 src2 = ins->sreg2; \
113 if (ins->dreg != ins->sreg1) { \
114 s390_ldr (code, ins->dreg, ins->sreg1); \
115 } \
116 }
117
118 #define CHECK_SRCDST_NCOM_F \
119 if (ins->dreg == ins->sreg2) { \
120 src2 = s390_f15; \
121 s390_ldr (code, s390_r13, ins->sreg2); \
122 } else { \
123 src2 = ins->sreg2; \
124 } \
125 if (ins->dreg != ins->sreg1) { \
126 s390_ldr (code, ins->dreg, ins->sreg1); \
127 }
128
129 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
130 MonoInst *inst; \
131 int sReg, dReg; \
132 MONO_INST_NEW (cfg, inst, OP_NOP); \
133 if (size > 256) { \
134 inst->dreg = dest; \
135 inst->inst_offset = offset; \
136 inst->sreg1 = src; \
137 inst->inst_imm = imm; \
138 } else { \
139 if (s390_is_uimm12(offset)) { \
140 inst->dreg = dest; \
141 inst->inst_offset = offset; \
142 } else { \
143 dReg = mono_alloc_preg (cfg); \
144 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
145 dReg, dest, offset); \
146 inst->dreg = dReg; \
147 inst->inst_offset = 0; \
148 } \
149 if (s390_is_uimm12(imm)) { \
150 inst->sreg1 = src; \
151 inst->inst_imm = imm; \
152 } else { \
153 sReg = mono_alloc_preg (cfg); \
154 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
155 sReg, src, imm); \
156 inst->sreg1 = sReg; \
157 inst->inst_imm = 0; \
158 } \
159 } \
160 inst->opcode = OP_S390_MOVE; \
161 inst->backend.size = size; \
162 MONO_ADD_INS (cfg->cbb, inst); \
163 } while (0)
164
165 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
166 int reg = mono_alloc_preg (cfg); \
167 switch (size) { \
168 case 0: \
169 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
170 break; \
171 case 1: \
172 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
173 reg, sr, so); \
174 break; \
175 case 2: \
176 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
177 reg, sr, so); \
178 break; \
179 case 4: \
180 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
181 reg, sr, so); \
182 break; \
183 case 8: \
184 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI8_MEMBASE, \
185 reg, sr, so); \
186 break; \
187 } \
188 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
189 } while (0)
190
191 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
192 int tmpr; \
193 switch (size) { \
194 case 0: \
195 tmpr = mono_alloc_preg (cfg); \
196 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
197 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
198 dr, dx, tmpr); \
199 break; \
200 case 1: \
201 tmpr = mono_alloc_preg (cfg); \
202 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
203 tmpr, sr, so); \
204 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
205 dr, dx, tmpr); \
206 break; \
207 case 2: \
208 tmpr = mono_alloc_preg (cfg); \
209 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
210 tmpr, sr, so); \
211 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
212 dr, dx, tmpr); \
213 break; \
214 case 4: \
215 tmpr = mono_alloc_preg (cfg); \
216 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
217 tmpr, sr, so); \
218 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
219 dr, dx, tmpr); \
220 break; \
221 case 8: \
222 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
223 break; \
224 } \
225 } while (0)
226
227 #undef DEBUG
228 #define DEBUG(a) if (cfg->verbose_level > 1) a
229
230 #define MAX_EXC 16
231
232 #define S390_TRACE_STACK_SIZE (5*sizeof(gpointer)+4*sizeof(gdouble))
233
234 #define BREAKPOINT_SIZE sizeof(breakpoint_t)
235 #define S390X_NOP_SIZE sizeof(I_Format)
236
237 #define MAX(a, b) ((a) > (b) ? (a) : (b))
238
239 /*
240 * imt thunking size values
241 */
242 #define CMP_SIZE 24
243 #define LOADCON_SIZE 20
244 #define LOAD_SIZE 6
245 #define BR_SIZE 2
246 #define JUMP_SIZE 6
247 #define ENABLE_WRONG_METHOD_CHECK 0
248
249 /*========================= End of Defines =========================*/
250
251 /*------------------------------------------------------------------*/
252 /* I n c l u d e s */
253 /*------------------------------------------------------------------*/
254
255 #include "mini.h"
256 #include <string.h>
257
258 #include <mono/metadata/appdomain.h>
259 #include <mono/metadata/debug-helpers.h>
260 #include <mono/metadata/profiler-private.h>
261 #include <mono/utils/mono-math.h>
262 #include <mono/utils/mono-mmap.h>
263
264 #include "mini-s390x.h"
265 #include "cpu-s390x.h"
266 #include "jit-icalls.h"
267 #include "ir-emit.h"
268 #include "trace.h"
269
270 /*========================= End of Includes ========================*/
271
272 /*------------------------------------------------------------------*/
273 /* T y p e d e f s */
274 /*------------------------------------------------------------------*/
275
276 typedef struct {
277 guint stack_size,
278 local_size,
279 code_size,
280 parm_size,
281 offset,
282 offStruct,
283 retStruct;
284 } size_data;
285
286 /*------------------------------------------------------------------*/
287 /* Used by the instrument_emit_epilog */
288 /*------------------------------------------------------------------*/
289
290 enum {
291 SAVE_NONE,
292 SAVE_STRUCT,
293 SAVE_ONE,
294 SAVE_TWO,
295 SAVE_R4,
296 SAVE_R8
297 };
298
299 typedef struct InstList InstList;
300
301 struct InstList {
302 InstList *prev;
303 InstList *next;
304 MonoInst *data;
305 };
306
307 typedef enum {
308 RegTypeGeneral,
309 RegTypeBase,
310 RegTypeFP,
311 RegTypeFPR4,
312 RegTypeStructByVal,
313 RegTypeStructByValInFP,
314 RegTypeStructByAddr,
315 RegTypeStructByAddrOnStack
316 } ArgStorage;
317
318 typedef struct {
319 gint32 offset; /* offset from caller's stack */
320 gint32 offparm; /* offset from callee's stack */
321 guint16 vtsize; /* in param area */
322 guint8 reg;
323 ArgStorage regtype;
324 guint32 size; /* Size of structure used by RegTypeStructByVal */
325 gint32 type; /* Data type of argument */
326 } ArgInfo;
327
328 typedef struct {
329 int nargs;
330 int lastgr;
331 guint32 stack_usage;
332 guint32 struct_ret;
333 ArgInfo ret;
334 ArgInfo sigCookie;
335 size_data sz;
336 int vret_arg_index;
337 ArgInfo args [1];
338 } CallInfo;
339
340 typedef struct {
341 gint64 gr[5]; /* R2-R6 */
342 gdouble fp[3]; /* F0-F2 */
343 } __attribute__ ((packed)) RegParm;
344
345 typedef struct {
346 RR_Format basr;
347 RI_Format j;
348 void *pTrigger;
349 RXY_Format lg;
350 RXY_Format trigger;
351 } __attribute__ ((packed)) breakpoint_t;
352
353 /*========================= End of Typedefs ========================*/
354
355 /*------------------------------------------------------------------*/
356 /* P r o t o t y p e s */
357 /*------------------------------------------------------------------*/
358
359 static void indent (int);
360 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
361 static void decodeParm (MonoType *, void *, int);
362 static void enter_method (MonoMethod *, RegParm *, char *);
363 static void leave_method (MonoMethod *, ...);
364 static gboolean is_regsize_var (MonoType *);
365 static inline void add_general (guint *, size_data *, ArgInfo *);
366 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
367 static inline void add_float (guint *, size_data *, ArgInfo *);
368 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
369 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
370 static guint8 * emit_load_volatile_arguments (guint8 *, MonoCompile *);
371 static void catch_SIGILL(int, siginfo_t *, void *);
372 static __inline__ void emit_unwind_regs(MonoCompile *, guint8 *, int, int, long);
373
374 /*========================= End of Prototypes ======================*/
375
376 /*------------------------------------------------------------------*/
377 /* G l o b a l V a r i a b l e s */
378 /*------------------------------------------------------------------*/
379
380 int mono_exc_esp_offset = 0;
381
382 static int indent_level = 0;
383
384 int has_ld = 0;
385
386 static gint appdomain_tls_offset = -1,
387 lmf_tls_offset = -1,
388 lmf_addr_tls_offset = -1;
389
390 pthread_key_t lmf_addr_key;
391
392 gboolean lmf_addr_key_inited = FALSE;
393
394 facilityList_t facs;
395
396 #if 0
397
398 extern __thread MonoDomain *tls_appdomain;
399 extern __thread MonoThread *tls_current_object;
400 extern __thread gpointer mono_lmf_addr;
401
402 #endif
403
404 /*
405 * The code generated for sequence points reads from this location,
406 * which is made read-only when single stepping is enabled.
407 */
408 static gpointer ss_trigger_page;
409
410 /*
411 * Enabled breakpoints read from this trigger page
412 */
413 static gpointer bp_trigger_page;
414
415 breakpoint_t breakpointCode;
416
417 /*====================== End of Global Variables ===================*/
418
419 /*------------------------------------------------------------------*/
420 /* */
421 /* Name - mono_arch_regname */
422 /* */
423 /* Function - Returns the name of the register specified by */
424 /* the input parameter. */
425 /* */
426 /*------------------------------------------------------------------*/
427
428 const char*
429 mono_arch_regname (int reg) {
430 static const char * rnames[] = {
431 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
432 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
433 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
434 "s390_r15"
435 };
436
437 if (reg >= 0 && reg < 16)
438 return rnames [reg];
439 else
440 return "unknown";
441 }
442
443 /*========================= End of Function ========================*/
444
445 /*------------------------------------------------------------------*/
446 /* */
447 /* Name - mono_arch_fregname */
448 /* */
449 /* Function - Returns the name of the register specified by */
450 /* the input parameter. */
451 /* */
452 /*------------------------------------------------------------------*/
453
454 const char*
455 mono_arch_fregname (int reg) {
456 static const char * rnames[] = {
457 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
458 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
459 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
460 "s390_f15"
461 };
462
463 if (reg >= 0 && reg < 16)
464 return rnames [reg];
465 else
466 return "unknown";
467 }
468
469 /*========================= End of Function ========================*/
470
471 /*------------------------------------------------------------------*/
472 /* */
473 /* Name - arch_get_argument_info */
474 /* */
475 /* Function - Gathers information on parameters such as size, */
476 /* alignment, and padding. arg_info should be large */
477 /* enough to hold param_count + 1 entries. */
478 /* */
479 /* Parameters - @csig - Method signature */
480 /* @param_count - No. of parameters to consider */
481 /* @arg_info - An array to store the result info */
482 /* */
483 /* Returns - Size of the activation frame */
484 /* */
485 /*------------------------------------------------------------------*/
486
487 int
488 mono_arch_get_argument_info (MonoGenericSharingContext *gsctx, MonoMethodSignature *csig,
489 int param_count,
490 MonoJitArgumentInfo *arg_info)
491 {
492 int k, frame_size = 0;
493 int size, align, pad;
494 int offset = 8;
495
496 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
497 frame_size += sizeof (gpointer);
498 offset += 8;
499 }
500
501 arg_info [0].offset = offset;
502
503 if (csig->hasthis) {
504 frame_size += sizeof (gpointer);
505 offset += 8;
506 }
507
508 arg_info [0].size = frame_size;
509
510 for (k = 0; k < param_count; k++) {
511
512 if (csig->pinvoke)
513 size = mono_type_native_stack_size (csig->params [k], (guint32 *) &align);
514 else
515 size = mini_type_stack_size (NULL, csig->params [k], &align);
516
517 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
518 arg_info [k].pad = pad;
519 frame_size += size;
520 arg_info [k + 1].pad = 0;
521 arg_info [k + 1].size = size;
522 offset += pad;
523 arg_info [k + 1].offset = offset;
524 offset += size;
525 }
526
527 align = MONO_ARCH_FRAME_ALIGNMENT;
528 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
529 arg_info [k].pad = pad;
530
531 return frame_size;
532 }
533
534 /*========================= End of Function ========================*/
535
536 /*------------------------------------------------------------------*/
537 /* */
538 /* Name - emit_unwind_regs. */
539 /* */
540 /* Function - Determines if a value can be returned in one or */
541 /* two registers. */
542 /* */
543 /*------------------------------------------------------------------*/
544
545 static void __inline__
546 emit_unwind_regs(MonoCompile *cfg, guint8 *code, int start, int end, long offset)
547 {
548 int i;
549
550 for (i = start; i < end; i++) {
551 mono_emit_unwind_op_offset (cfg, code, i, offset);
552 offset += sizeof(gulong);
553 }
554 }
555
556 /*========================= End of Function ========================*/
557
558 /*------------------------------------------------------------------*/
559 /* */
560 /* Name - retFitsInReg. */
561 /* */
562 /* Function - Determines if a value can be returned in one or */
563 /* two registers. */
564 /* */
565 /*------------------------------------------------------------------*/
566
567 static inline gboolean
568 retFitsInReg(guint32 size)
569 {
570 switch (size) {
571 case 0:
572 case 1:
573 case 2:
574 case 4:
575 case 8:
576 return (TRUE);
577 break;
578 default:
579 return (FALSE);
580 }
581 }
582
583 /*========================= End of Function ========================*/
584
585 /*------------------------------------------------------------------*/
586 /* */
587 /* Name - backStackPtr. */
588 /* */
589 /* Function - Restore Stack Pointer to previous frame. */
590 /* */
591 /*------------------------------------------------------------------*/
592
593 static inline guint8 *
594 backUpStackPtr(MonoCompile *cfg, guint8 *code)
595 {
596 int stackSize = cfg->stack_usage;
597
598 if (cfg->frame_reg != STK_BASE)
599 s390_lgr (code, STK_BASE, cfg->frame_reg);
600
601 if (s390_is_imm16 (stackSize)) {
602 s390_aghi (code, STK_BASE, stackSize);
603 } else {
604 while (stackSize > 32767) {
605 s390_aghi (code, STK_BASE, 32767);
606 stackSize -= 32767;
607 }
608 s390_aghi (code, STK_BASE, stackSize);
609 }
610 return (code);
611 }
612
613 /*========================= End of Function ========================*/
614
615 /*------------------------------------------------------------------*/
616 /* */
617 /* Name - indent */
618 /* */
619 /* Function - Perform nice indenting to current level */
620 /* */
621 /*------------------------------------------------------------------*/
622
623 static void
624 indent (int diff) {
625 int v;
626 if (diff < 0)
627 indent_level += diff;
628 v = indent_level;
629 printf("[%3d] ",v);
630 while (v-- > 0) {
631 printf (". ");
632 }
633 if (diff > 0)
634 indent_level += diff;
635 }
636
637 /*========================= End of Function ========================*/
638
639 /*------------------------------------------------------------------*/
640 /* */
641 /* Name - cvtMonoType */
642 /* */
643 /* Function - Convert a mono-type to a string. */
644 /* */
645 /*------------------------------------------------------------------*/
646
647 static const char *
648 cvtMonoType(MonoTypeEnum t)
649 {
650 switch(t)
651 {
652 case MONO_TYPE_END:
653 return "MONO_TYPE_END";
654 case MONO_TYPE_VOID:
655 return "MONO_TYPE_VOID";
656 case MONO_TYPE_BOOLEAN:
657 return "MONO_TYPE_BOOLEAN";
658 case MONO_TYPE_CHAR:
659 return "MONO_TYPE_CHAR";
660 case MONO_TYPE_I1:
661 return "MONO_TYPE_I1";
662 case MONO_TYPE_U1:
663 return "MONO_TYPE_U1";
664 case MONO_TYPE_I2:
665 return "MONO_TYPE_I2";
666 case MONO_TYPE_U2:
667 return "MONO_TYPE_U2";
668 case MONO_TYPE_I4:
669 return "MONO_TYPE_I4";
670 case MONO_TYPE_U4:
671 return "MONO_TYPE_U4";
672 case MONO_TYPE_I8:
673 return "MONO_TYPE_I8";
674 case MONO_TYPE_U8:
675 return "MONO_TYPE_U8";
676 case MONO_TYPE_R4:
677 return "MONO_TYPE_R4";
678 case MONO_TYPE_R8:
679 return "MONO_TYPE_R8";
680 case MONO_TYPE_STRING:
681 return "MONO_TYPE_STRING";
682 case MONO_TYPE_PTR:
683 return "MONO_TYPE_PTR";
684 case MONO_TYPE_BYREF:
685 return "MONO_TYPE_BYREF";
686 case MONO_TYPE_VALUETYPE:
687 return "MONO_TYPE_VALUETYPE";
688 case MONO_TYPE_CLASS:
689 return "MONO_TYPE_CLASS";
690 case MONO_TYPE_VAR:
691 return "MONO_TYPE_VAR";
692 case MONO_TYPE_ARRAY:
693 return "MONO_TYPE_ARRAY";
694 case MONO_TYPE_GENERICINST:
695 return "MONO_TYPE_GENERICINST";
696 case MONO_TYPE_TYPEDBYREF:
697 return "MONO_TYPE_TYPEDBYREF";
698 case MONO_TYPE_I:
699 return "MONO_TYPE_I";
700 case MONO_TYPE_U:
701 return "MONO_TYPE_U";
702 case MONO_TYPE_FNPTR:
703 return "MONO_TYPE_FNPTR";
704 case MONO_TYPE_OBJECT:
705 return "MONO_TYPE_OBJECT";
706 case MONO_TYPE_SZARRAY:
707 return "MONO_TYPE_SZARRAY";
708 case MONO_TYPE_MVAR:
709 return "MONO_TYPE_MVAR";
710 case MONO_TYPE_CMOD_REQD:
711 return "MONO_TYPE_CMOD_REQD";
712 case MONO_TYPE_CMOD_OPT:
713 return "MONO_TYPE_CMOD_OPT";
714 case MONO_TYPE_INTERNAL:
715 return "MONO_TYPE_INTERNAL";
716 case MONO_TYPE_MODIFIER:
717 return "MONO_TYPE_MODIFIER";
718 case MONO_TYPE_SENTINEL:
719 return "MONO_TYPE_SENTINEL";
720 case MONO_TYPE_PINNED:
721 return "MONO_TYPE_PINNED";
722 default:
723 ;
724 }
725 return "unknown";
726 }
727
728 /*========================= End of Function ========================*/
729
730 /*------------------------------------------------------------------*/
731 /* */
732 /* Name - decodeParm */
733 /* */
734 /* Function - Decode a parameter for the trace. */
735 /* */
736 /*------------------------------------------------------------------*/
737
738 static void
739 decodeParm(MonoType *type, void *curParm, int size)
740 {
741 guint32 simpleType;
742
743 if (type->byref) {
744 printf("[BYREF:%p], ", *((char **) curParm));
745 } else {
746 simpleType = mono_type_get_underlying_type(type)->type;
747 enum_parmtype:
748 switch (simpleType) {
749 case MONO_TYPE_I :
750 printf ("[INTPTR:%p], ", *((int **) curParm));
751 break;
752 case MONO_TYPE_U :
753 printf ("[UINTPTR:%p], ", *((int **) curParm));
754 break;
755 case MONO_TYPE_BOOLEAN :
756 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
757 break;
758 case MONO_TYPE_CHAR :
759 printf ("[CHAR:%c], ", *((int *) curParm));
760 break;
761 case MONO_TYPE_I1 :
762 printf ("[INT1:%ld], ", *((gint64 *) curParm));
763 break;
764 case MONO_TYPE_I2 :
765 printf ("[INT2:%ld], ", *((gint64 *) curParm));
766 break;
767 case MONO_TYPE_I4 :
768 printf ("[INT4:%ld], ", *((gint64 *) curParm));
769 break;
770 case MONO_TYPE_U1 :
771 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
772 break;
773 case MONO_TYPE_U2 :
774 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
775 break;
776 case MONO_TYPE_U4 :
777 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
778 break;
779 case MONO_TYPE_U8 :
780 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
781 break;
782 case MONO_TYPE_STRING : {
783 MonoString *s = *((MonoString **) curParm);
784 if (s) {
785 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
786 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
787 } else {
788 printf("[STRING:null], ");
789 }
790 break;
791 }
792 case MONO_TYPE_CLASS :
793 case MONO_TYPE_OBJECT : {
794 MonoObject *obj = *((MonoObject **) curParm);
795 MonoClass *class;
796 if ((obj) && (obj->vtable)) {
797 printf("[CLASS/OBJ:");
798 class = obj->vtable->klass;
799 printf("%p [%p] ",obj,curParm);
800 if (class == mono_defaults.string_class) {
801 printf("[STRING:%p:%s]",
802 obj, mono_string_to_utf8 ((MonoString *) obj));
803 } else if (class == mono_defaults.int32_class) {
804 printf("[INT32:%p:%d]",
805 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
806 } else
807 printf("[%s.%s:%p]",
808 class->name_space, class->name, obj);
809 printf("], ");
810 } else {
811 printf("[OBJECT:null], ");
812 }
813 break;
814 }
815 case MONO_TYPE_PTR :
816 printf("[PTR:%p], ", *((gpointer **) (curParm)));
817 break;
818 case MONO_TYPE_FNPTR :
819 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
820 break;
821 case MONO_TYPE_ARRAY :
822 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
823 break;
824 case MONO_TYPE_SZARRAY :
825 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
826 break;
827 case MONO_TYPE_I8 :
828 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
829 break;
830 case MONO_TYPE_R4 :
831 printf("[FLOAT4:%g], ", *((float *) (curParm)));
832 break;
833 case MONO_TYPE_R8 :
834 printf("[FLOAT8:%g], ", *((double *) (curParm)));
835 break;
836 case MONO_TYPE_VALUETYPE : {
837 int i;
838 MonoMarshalType *info;
839
840 if (type->data.klass->enumtype) {
841 simpleType = mono_class_enum_basetype (type->data.klass)->type;
842 printf("{VALUETYPE} - ");
843 goto enum_parmtype;
844 }
845
846 info = mono_marshal_load_type_info (type->data.klass);
847
848 if ((info->native_size == sizeof(float)) &&
849 (info->num_fields == 1) &&
850 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
851 printf("[FLOAT4:%f], ", *((float *) (curParm)));
852 break;
853 }
854
855 if ((info->native_size == sizeof(double)) &&
856 (info->num_fields == 1) &&
857 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
858 printf("[FLOAT8:%g], ", *((double *) (curParm)));
859 break;
860 }
861
862 printf("[VALUETYPE:");
863 for (i = 0; i < size; i++)
864 printf("%02x,", *((guint8 *)curParm+i));
865 printf("], ");
866 break;
867 }
868 case MONO_TYPE_TYPEDBYREF: {
869 int i;
870 printf("[TYPEDBYREF:");
871 for (i = 0; i < size; i++)
872 printf("%02x,", *((guint8 *)curParm+i));
873 printf("]");
874 break;
875 }
876 default :
877 printf("[%s], ",cvtMonoType(simpleType));
878 }
879 }
880 }
881
882 /*========================= End of Function ========================*/
883
884 /*------------------------------------------------------------------*/
885 /* */
886 /* Name - enter_method */
887 /* */
888 /* Function - Perform tracing of the entry to the current */
889 /* method. */
890 /* */
891 /*------------------------------------------------------------------*/
892
893 static void
894 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
895 {
896 int i, oParm = 0, iParm = 0;
897 MonoClass *class;
898 MonoObject *obj;
899 MonoMethodSignature *sig;
900 char *fname;
901 guint64 ip;
902 CallInfo *cinfo;
903 ArgInfo *ainfo;
904 void *curParm;
905
906 fname = mono_method_full_name (method, TRUE);
907 indent (1);
908 printf ("ENTER: %s ", fname);
909 g_free (fname);
910
911 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
912 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
913
914 if (rParm == NULL)
915 return;
916
917 sig = mono_method_signature (method);
918
919 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
920
921 if (cinfo->struct_ret) {
922 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
923 iParm = 1;
924 }
925
926 if (sig->hasthis) {
927 gpointer *this = (gpointer *) rParm->gr[iParm];
928 obj = (MonoObject *) this;
929 switch(method->klass->this_arg.type) {
930 case MONO_TYPE_VALUETYPE:
931 if (obj) {
932 guint64 *value = (guint64 *) ((uintptr_t)this + sizeof(MonoObject));
933 printf("this:[value:%p:%016lx], ", this, *value);
934 } else
935 printf ("this:[NULL], ");
936 break;
937 case MONO_TYPE_STRING:
938 if (obj) {
939 if (obj->vtable) {
940 class = obj->vtable->klass;
941 if (class == mono_defaults.string_class) {
942 printf ("this:[STRING:%p:%s], ",
943 obj, mono_string_to_utf8 ((MonoString *)obj));
944 } else {
945 printf ("this:%p[%s.%s], ",
946 obj, class->name_space, class->name);
947 }
948 } else
949 printf("vtable:[NULL], ");
950 } else
951 printf ("this:[NULL], ");
952 break;
953 default :
954 printf("this[%s]: %p, ",cvtMonoType(method->klass->this_arg.type),this);
955 }
956 oParm++;
957 }
958
959 for (i = 0; i < sig->param_count; ++i) {
960 ainfo = &cinfo->args[i + oParm];
961 switch (ainfo->regtype) {
962 case RegTypeGeneral :
963 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
964 break;
965 case RegTypeFP :
966 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
967 break;
968 case RegTypeBase :
969 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
970 break;
971 case RegTypeStructByVal :
972 if (ainfo->reg != STK_BASE) {
973 int offset = sizeof(glong) - ainfo->size;
974 curParm = &(rParm->gr[ainfo->reg-2])+offset;
975 }
976 else
977 curParm = sp+ainfo->offset;
978
979 if (retFitsInReg (ainfo->vtsize))
980 decodeParm(sig->params[i],
981 curParm,
982 ainfo->size);
983 else
984 decodeParm(sig->params[i],
985 *((char **) curParm),
986 ainfo->vtsize);
987 break;
988 case RegTypeStructByAddr :
989 if (ainfo->reg != STK_BASE)
990 curParm = &(rParm->gr[ainfo->reg-2]);
991 else
992 curParm = sp+ainfo->offset;
993
994 decodeParm(sig->params[i],
995 *((char **) curParm),
996 ainfo->vtsize);
997 break;
998
999 default :
1000 printf("???, ");
1001 }
1002 }
1003 printf("\n");
1004 g_free(cinfo);
1005 }
1006
1007 /*========================= End of Function ========================*/
1008
1009 /*------------------------------------------------------------------*/
1010 /* */
1011 /* Name - leave_method */
1012 /* */
1013 /* Function - */
1014 /* */
1015 /*------------------------------------------------------------------*/
1016
1017 static void
1018 leave_method (MonoMethod *method, ...)
1019 {
1020 MonoType *type;
1021 char *fname;
1022 guint64 ip;
1023 va_list ap;
1024
1025 va_start(ap, method);
1026
1027 fname = mono_method_full_name (method, TRUE);
1028 indent (-1);
1029 printf ("LEAVE: %s", fname);
1030 g_free (fname);
1031
1032 type = mono_method_signature (method)->ret;
1033
1034 handle_enum:
1035 switch (type->type) {
1036 case MONO_TYPE_VOID:
1037 break;
1038 case MONO_TYPE_BOOLEAN: {
1039 int val = va_arg (ap, int);
1040 if (val)
1041 printf ("[TRUE:%d]", val);
1042 else
1043 printf ("[FALSE]");
1044
1045 break;
1046 }
1047 case MONO_TYPE_CHAR: {
1048 int val = va_arg (ap, int);
1049 printf ("[CHAR:%d]", val);
1050 break;
1051 }
1052 case MONO_TYPE_I1: {
1053 int val = va_arg (ap, int);
1054 printf ("[INT1:%d]", val);
1055 break;
1056 }
1057 case MONO_TYPE_U1: {
1058 int val = va_arg (ap, int);
1059 printf ("[UINT1:%d]", val);
1060 break;
1061 }
1062 case MONO_TYPE_I2: {
1063 int val = va_arg (ap, int);
1064 printf ("[INT2:%d]", val);
1065 break;
1066 }
1067 case MONO_TYPE_U2: {
1068 int val = va_arg (ap, int);
1069 printf ("[UINT2:%d]", val);
1070 break;
1071 }
1072 case MONO_TYPE_I4: {
1073 int val = va_arg (ap, int);
1074 printf ("[INT4:%d]", val);
1075 break;
1076 }
1077 case MONO_TYPE_U4: {
1078 int val = va_arg (ap, int);
1079 printf ("[UINT4:%d]", val);
1080 break;
1081 }
1082 case MONO_TYPE_I: {
1083 gint64 val = va_arg (ap, gint64);
1084 printf ("[INT:%ld]", val);
1085 printf("]");
1086 break;
1087 }
1088 case MONO_TYPE_U: {
1089 gint64 val = va_arg (ap, gint64);
1090 printf ("[UINT:%lu]", val);
1091 printf("]");
1092 break;
1093 }
1094 case MONO_TYPE_STRING: {
1095 MonoString *s = va_arg (ap, MonoString *);
1096 ;
1097 if (s) {
1098 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
1099 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
1100 } else
1101 printf ("[STRING:null], ");
1102 break;
1103 }
1104 case MONO_TYPE_CLASS:
1105 case MONO_TYPE_OBJECT: {
1106 MonoObject *o = va_arg (ap, MonoObject *);
1107
1108 if ((o) && (o->vtable)) {
1109 if (o->vtable->klass == mono_defaults.boolean_class) {
1110 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
1111 } else if (o->vtable->klass == mono_defaults.int32_class) {
1112 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
1113 } else if (o->vtable->klass == mono_defaults.int64_class) {
1114 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
1115 } else
1116 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
1117 } else
1118 printf ("[OBJECT:%p]", o);
1119
1120 break;
1121 }
1122 case MONO_TYPE_PTR:
1123 case MONO_TYPE_FNPTR:
1124 case MONO_TYPE_ARRAY:
1125 case MONO_TYPE_SZARRAY: {
1126 gpointer p = va_arg (ap, gpointer);
1127 printf ("[result=%p]", p);
1128 break;
1129 }
1130 case MONO_TYPE_I8: {
1131 gint64 l = va_arg (ap, gint64);
1132 printf ("[LONG:%ld]", l);
1133 break;
1134 }
1135 case MONO_TYPE_U8: {
1136 guint64 l = va_arg (ap, guint64);
1137 printf ("[ULONG:%lu]", l);
1138 break;
1139 }
1140 case MONO_TYPE_R4: {
1141 double f = va_arg (ap, double);
1142 printf ("[FLOAT4:%g]\n", f);
1143 break;
1144 }
1145 case MONO_TYPE_R8: {
1146 double f = va_arg (ap, double);
1147 printf ("[FLOAT8:%g]\n", f);
1148 break;
1149 }
1150 case MONO_TYPE_VALUETYPE: {
1151 MonoMarshalType *info;
1152 if (type->data.klass->enumtype) {
1153 type = mono_class_enum_basetype (type->data.klass);
1154 goto handle_enum;
1155 } else {
1156 int size, align;
1157
1158 info = mono_marshal_load_type_info (type->data.klass);
1159
1160 if ((info->native_size == sizeof(float)) &&
1161 (info->num_fields == 1) &&
1162 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1163 double f = va_arg (ap, double);
1164 printf("[FLOAT4:%g]\n", (double) f);
1165 break;
1166 }
1167
1168 if ((info->native_size == sizeof(double)) &&
1169 (info->num_fields == 1) &&
1170 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1171 double f = va_arg (ap, double);
1172 printf("[FLOAT8:%g]\n", f);
1173 break;
1174 }
1175
1176 size = mono_type_size (type, &align);
1177 switch (size) {
1178 case 1: {
1179 guint32 p = va_arg (ap, guint32);
1180 printf ("[%02x]\n",p);
1181 break;
1182 }
1183 case 2: {
1184 guint32 p = va_arg (ap, guint32);
1185 printf ("[%04x]\n",p);
1186 break;
1187 }
1188 case 4: {
1189 guint32 p = va_arg (ap, guint32);
1190 printf ("[%08x]\n",p);
1191 break;
1192 }
1193 case 8: {
1194 guint64 p = va_arg (ap, guint64);
1195 printf ("[%016lx]\n",p);
1196 break;
1197 }
1198 default: {
1199 gpointer p = va_arg (ap, gpointer);
1200 printf ("[VALUETYPE] %p\n",p);
1201 }
1202 }
1203 }
1204 break;
1205 }
1206 case MONO_TYPE_TYPEDBYREF: {
1207 guint8 *p = va_arg (ap, gpointer);
1208 int j, size, align;
1209 size = mono_type_size (type, &align);
1210 switch (size) {
1211 case 1:
1212 case 2:
1213 case 4:
1214 case 8:
1215 printf ("[");
1216 for (j = 0; p && j < size; j++)
1217 printf ("%02x,", p [j]);
1218 printf ("]\n");
1219 break;
1220 default:
1221 printf ("[TYPEDBYREF]\n");
1222 }
1223 }
1224 break;
1225 default:
1226 printf ("(unknown return type %x)",
1227 mono_method_signature (method)->ret->type);
1228 }
1229
1230 ip = ((gint64) __builtin_return_address (0));
1231 printf (" ip: %p\n", (gpointer) ip);
1232 }
1233
1234 /*========================= End of Function ========================*/
1235
1236 /*------------------------------------------------------------------*/
1237 /* */
1238 /* Name - catch_SIGILL */
1239 /* */
1240 /* Function - Catch SIGILL as a result of testing for long */
1241 /* displacement facility. */
1242 /* */
1243 /*------------------------------------------------------------------*/
1244
1245 void
1246 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1247
1248 has_ld = 0;
1249
1250 }
1251
1252 /*========================= End of Function ========================*/
1253
1254 /*------------------------------------------------------------------*/
1255 /* */
1256 /* Name - mono_arch_cpu_init */
1257 /* */
1258 /* Function - Perform CPU specific initialization to execute */
1259 /* managed code. */
1260 /* */
1261 /*------------------------------------------------------------------*/
1262
1263 void
1264 mono_arch_cpu_init (void)
1265 {
1266 struct sigaction sa,
1267 *oldSa = NULL;
1268 guint mode = 1;
1269
1270 /*--------------------------------------*/
1271 /* Set default rounding mode for FP */
1272 /*--------------------------------------*/
1273 __asm__ ("SRNM\t%0\n\t"
1274 : : "m" (mode));
1275
1276 /*--------------------------------------*/
1277 /* Determine if we have long displace- */
1278 /* ment facility on this processor */
1279 /*--------------------------------------*/
1280 sa.sa_sigaction = catch_SIGILL;
1281 sigemptyset (&sa.sa_mask);
1282 sa.sa_flags = SA_SIGINFO;
1283
1284 sigaction (SIGILL, &sa, oldSa);
1285
1286 /*--------------------------------------*/
1287 /* We test by executing the STY inst */
1288 /*--------------------------------------*/
1289 __asm__ ("LGHI\t0,1\n\t"
1290 "LA\t1,%0\n\t"
1291 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1292 : "=m" (has_ld) : : "0", "1");
1293
1294 sigaction (SIGILL, oldSa, NULL);
1295 }
1296
1297 /*========================= End of Function ========================*/
1298
1299 /*------------------------------------------------------------------*/
1300 /* */
1301 /* Name - mono_arch_init. */
1302 /* */
1303 /* Function - Initialize architecture specific code. */
1304 /* */
1305 /*------------------------------------------------------------------*/
1306
1307 void
1308 mono_arch_init (void)
1309 {
1310 guint8 *code;
1311
1312 #if 0
1313 /*
1314 * When we do an architectural level set at z9 or better
1315 * we can use the STFLE instruction to show us
1316 * what hardware facilities are available
1317 */
1318 int lFacility = sizeof(facs) % 8;
1319
1320 memset((char *) &facs, 0, sizeof(facs));
1321
1322 __asm__ (" lgfr 0,%1\n"
1323 " stfle %0\n"
1324 : "=m" (facs) : "r" (lFacility) : "0", "cc");
1325 #endif
1326
1327 ss_trigger_page = mono_valloc (NULL, mono_pagesize (), MONO_MMAP_READ);
1328 bp_trigger_page = mono_valloc (NULL, mono_pagesize (), MONO_MMAP_READ);
1329 mono_mprotect (bp_trigger_page, mono_pagesize (), 0);
1330
1331 code = (guint8 *) &breakpointCode;
1332 s390_basr(code, s390_r13, 0);
1333 s390_j(code, 6);
1334 s390_llong(code, 0);
1335 s390_lg(code, s390_r13, 0, s390_r13, 4);
1336 s390_lg(code, s390_r0, 0, s390_r13, 0);
1337 }
1338
1339 /*========================= End of Function ========================*/
1340
1341 /*------------------------------------------------------------------*/
1342 /* */
1343 /* Name - mono_arch_cleanup. */
1344 /* */
1345 /* Function - Cleanup architecture specific code . */
1346 /* */
1347 /*------------------------------------------------------------------*/
1348
1349 void
1350 mono_arch_cleanup (void)
1351 {
1352 }
1353
1354 /*========================= End of Function ========================*/
1355
1356 /*------------------------------------------------------------------*/
1357 /* */
1358 /* Name - mono_arch_cpu_optimizations */
1359 /* */
1360 /* Function - Returns the optimizations supported on this CPU */
1361 /* */
1362 /*------------------------------------------------------------------*/
1363
1364 guint32
1365 mono_arch_cpu_optimizations (guint32 *exclude_mask)
1366 {
1367 guint32 opts = 0;
1368
1369 /*----------------------------------------------------------*/
1370 /* No s390-specific optimizations yet */
1371 /*----------------------------------------------------------*/
1372 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1373 // *exclude_mask = MONO_OPT_INLINE;
1374 return opts;
1375 }
1376
1377 /*========================= End of Function ========================*/
1378
1379 /*------------------------------------------------------------------*/
1380 /* */
1381 /* Name - mono_arch_cpu_enumerate_simd_versions */
1382 /* */
1383 /* Function - Returns the SIMD instruction sets on this CPU */
1384 /* */
1385 /*------------------------------------------------------------------*/
1386 guint32
1387 mono_arch_cpu_enumerate_simd_versions (void)
1388 {
1389 /* SIMD is currently unimplemented */
1390 return 0;
1391 }
1392 /*========================= End of Function ========================*/
1393
1394 /*------------------------------------------------------------------*/
1395 /* */
1396 /* Name - */
1397 /* */
1398 /* Function - */
1399 /* */
1400 /*------------------------------------------------------------------*/
1401
1402 static gboolean
1403 is_regsize_var (MonoType *t) {
1404 if (t->byref)
1405 return TRUE;
1406 switch (mono_type_get_underlying_type (t)->type) {
1407 case MONO_TYPE_I4:
1408 case MONO_TYPE_U4:
1409 case MONO_TYPE_I:
1410 case MONO_TYPE_I8:
1411 case MONO_TYPE_U8:
1412 case MONO_TYPE_U:
1413 case MONO_TYPE_PTR:
1414 case MONO_TYPE_FNPTR:
1415 return TRUE;
1416 case MONO_TYPE_OBJECT:
1417 case MONO_TYPE_STRING:
1418 case MONO_TYPE_CLASS:
1419 case MONO_TYPE_SZARRAY:
1420 case MONO_TYPE_ARRAY:
1421 return FALSE;
1422 case MONO_TYPE_VALUETYPE:
1423 if (t->data.klass->enumtype)
1424 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1425 return FALSE;
1426 }
1427 return FALSE;
1428 }
1429
1430 /*========================= End of Function ========================*/
1431
1432 /*------------------------------------------------------------------*/
1433 /* */
1434 /* Name - mono_arch_get_allocatable_int_vars */
1435 /* */
1436 /* Function - */
1437 /* */
1438 /*------------------------------------------------------------------*/
1439
1440 GList *
1441 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1442 {
1443 GList *vars = NULL;
1444 int i;
1445
1446 for (i = 0; i < cfg->num_varinfo; i++) {
1447 MonoInst *ins = cfg->varinfo [i];
1448 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1449
1450 /* unused vars */
1451 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1452 continue;
1453
1454 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1455 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1456 continue;
1457
1458 /* we can only allocate 32 bit values */
1459 if (is_regsize_var (ins->inst_vtype)) {
1460 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1461 g_assert (i == vmv->idx);
1462 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1463 }
1464 }
1465
1466 return vars;
1467 }
1468
1469 /*========================= End of Function ========================*/
1470
1471 /*------------------------------------------------------------------*/
1472 /* */
1473 /* Name - mono_arch_global_int_regs */
1474 /* */
1475 /* Function - Return a list of usable integer registers. */
1476 /* */
1477 /*------------------------------------------------------------------*/
1478
1479 GList *
1480 mono_arch_get_global_int_regs (MonoCompile *cfg)
1481 {
1482 GList *regs = NULL;
1483 MonoMethodHeader *header;
1484 int i, top = 13;
1485
1486 header = cfg->header;
1487 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1488 cfg->frame_reg = s390_r11;
1489
1490
1491 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1492 top = 12;
1493 for (i = 8; i < top; ++i) {
1494 if (cfg->frame_reg != i)
1495 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1496 }
1497
1498 return regs;
1499 }
1500
1501 /*========================= End of Function ========================*/
1502
1503 /*------------------------------------------------------------------*/
1504 /* */
1505 /* Name - mono_arch_flush_icache */
1506 /* */
1507 /* Function - Flush the CPU icache. */
1508 /* */
1509 /*------------------------------------------------------------------*/
1510
1511 void
1512 mono_arch_flush_icache (guint8 *code, gint size)
1513 {
1514 }
1515
1516 /*========================= End of Function ========================*/
1517
1518 /*------------------------------------------------------------------*/
1519 /* */
1520 /* Name - add_general */
1521 /* */
1522 /* Function - Determine code and stack size incremements for a */
1523 /* parameter. */
1524 /* */
1525 /*------------------------------------------------------------------*/
1526
1527 static void inline
1528 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1529 {
1530 if (*gr > S390_LAST_ARG_REG) {
1531 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1532 ainfo->offset = sz->stack_size;
1533 ainfo->reg = STK_BASE;
1534 ainfo->regtype = RegTypeBase;
1535 sz->stack_size += sizeof(long);
1536 sz->local_size += sizeof(long);
1537 sz->offStruct += sizeof(long);
1538 sz->code_size += 12;
1539 } else {
1540 ainfo->reg = *gr;
1541 sz->code_size += 8;
1542 }
1543 (*gr) ++;
1544 }
1545
1546 /*========================= End of Function ========================*/
1547
1548 /*------------------------------------------------------------------*/
1549 /* */
1550 /* Name - add_stackParm */
1551 /* */
1552 /* Function - Determine code and stack size incremements for a */
1553 /* parameter. */
1554 /* */
1555 /*------------------------------------------------------------------*/
1556
1557 static void inline
1558 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1559 {
1560 if (*gr > S390_LAST_ARG_REG) {
1561 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1562 ainfo->reg = STK_BASE;
1563 ainfo->offset = sz->stack_size;
1564 ainfo->regtype = RegTypeStructByAddrOnStack;
1565 sz->stack_size += sizeof (gpointer);
1566 sz->parm_size += sizeof(gpointer);
1567 sz->offStruct += sizeof(gpointer);
1568 } else {
1569 ainfo->reg = *gr;
1570 ainfo->offset = sz->stack_size;
1571 ainfo->regtype = RegTypeStructByAddr;
1572 }
1573 (*gr) ++;
1574 ainfo->offparm = sz->offset;
1575 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1576 ainfo->size = size;
1577 ainfo->vtsize = size;
1578 sz->parm_size += size;
1579 }
1580
1581 /*========================= End of Function ========================*/
1582
1583 /*------------------------------------------------------------------*/
1584 /* */
1585 /* Name - add_float */
1586 /* */
1587 /* Function - Determine code and stack size incremements for a */
1588 /* float parameter. */
1589 /* */
1590 /*------------------------------------------------------------------*/
1591
1592 static void inline
1593 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1594 {
1595 if ((*fr) <= S390_LAST_FPARG_REG) {
1596 ainfo->regtype = RegTypeFP;
1597 ainfo->reg = *fr;
1598 sz->code_size += 4;
1599 (*fr) += 2;
1600 }
1601 else {
1602 ainfo->offset = sz->stack_size;
1603 ainfo->reg = STK_BASE;
1604 ainfo->regtype = RegTypeBase;
1605 sz->code_size += 4;
1606 sz->stack_size += sizeof(double);
1607 sz->local_size += sizeof(double);
1608 sz->offStruct += sizeof(double);
1609 }
1610 }
1611
1612 /*========================= End of Function ========================*/
1613
1614 /*------------------------------------------------------------------*/
1615 /* */
1616 /* Name - get_call_info */
1617 /* */
1618 /* Function - Determine the amount of space required for code */
1619 /* and stack. In addition determine starting points */
1620 /* for stack-based parameters, and area for struct- */
1621 /* ures being returned on the stack. */
1622 /* */
1623 /*------------------------------------------------------------------*/
1624
1625 static CallInfo *
1626 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1627 {
1628 guint i, fr, gr, size, pstart;
1629 int nParm = sig->hasthis + sig->param_count;
1630 MonoType *ret_type;
1631 guint32 simpletype, align;
1632 CallInfo *cinfo;
1633 size_data *sz;
1634 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1635
1636 if (mp)
1637 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1638 else
1639 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1640
1641 fr = 0;
1642 gr = s390_r2;
1643 nParm = 0;
1644 cinfo->struct_ret = 0;
1645 sz = &cinfo->sz;
1646 sz->retStruct = 0;
1647 sz->offset = 0;
1648 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1649 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1650 sz->code_size = 0;
1651 sz->parm_size = 0;
1652 sz->local_size = 0;
1653 align = 0;
1654 size = 0;
1655
1656 /*----------------------------------------------------------*/
1657 /* We determine the size of the return code/stack in case we*/
1658 /* need to reserve a register to be used to address a stack */
1659 /* area that the callee will use. */
1660 /*----------------------------------------------------------*/
1661
1662 ret_type = mono_type_get_underlying_type (sig->ret);
1663 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1664 simpletype = ret_type->type;
1665 enum_retvalue:
1666 switch (simpletype) {
1667 case MONO_TYPE_BOOLEAN:
1668 case MONO_TYPE_I1:
1669 case MONO_TYPE_U1:
1670 case MONO_TYPE_I2:
1671 case MONO_TYPE_U2:
1672 case MONO_TYPE_CHAR:
1673 case MONO_TYPE_I4:
1674 case MONO_TYPE_U4:
1675 case MONO_TYPE_I:
1676 case MONO_TYPE_U:
1677 case MONO_TYPE_CLASS:
1678 case MONO_TYPE_OBJECT:
1679 case MONO_TYPE_SZARRAY:
1680 case MONO_TYPE_ARRAY:
1681 case MONO_TYPE_PTR:
1682 case MONO_TYPE_FNPTR:
1683 case MONO_TYPE_STRING:
1684 cinfo->ret.reg = s390_r2;
1685 sz->code_size += 4;
1686 break;
1687 case MONO_TYPE_R4:
1688 case MONO_TYPE_R8:
1689 cinfo->ret.reg = s390_f0;
1690 sz->code_size += 4;
1691 break;
1692 case MONO_TYPE_I8:
1693 case MONO_TYPE_U8:
1694 cinfo->ret.reg = s390_r2;
1695 sz->code_size += 4;
1696 break;
1697 case MONO_TYPE_GENERICINST:
1698 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1699 cinfo->ret.reg = s390_r2;
1700 sz->code_size += 4;
1701 break;
1702 }
1703 /* Fall through */
1704 case MONO_TYPE_VALUETYPE: {
1705 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1706 if (klass->enumtype) {
1707 simpletype = mono_class_enum_basetype (klass)->type;
1708 goto enum_retvalue;
1709 }
1710 if (sig->pinvoke)
1711 size = mono_class_native_size (klass, &align);
1712 else
1713 size = mono_class_value_size (klass, &align);
1714
1715 cinfo->struct_ret = 1;
1716 cinfo->ret.size = size;
1717 cinfo->ret.vtsize = size;
1718 break;
1719 }
1720 case MONO_TYPE_TYPEDBYREF:
1721 size = sizeof (MonoTypedRef);
1722 cinfo->struct_ret = 1;
1723 cinfo->ret.size = size;
1724 cinfo->ret.vtsize = size;
1725 break;
1726 case MONO_TYPE_VOID:
1727 break;
1728 default:
1729 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1730 }
1731
1732
1733 pstart = 0;
1734 /*
1735 * To simplify get_this_arg_reg () and LLVM integration, emit the vret arg after
1736 * the first argument, allowing 'this' to be always passed in the first arg reg.
1737 * Also do this if the first argument is a reference type, since virtual calls
1738 * are sometimes made using calli without sig->hasthis set, like in the delegate
1739 * invoke wrappers.
1740 */
1741 if (cinfo->struct_ret && !is_pinvoke &&
1742 (sig->hasthis ||
1743 (sig->param_count > 0 &&
1744 MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (gsctx, sig->params [0]))))) {
1745 if (sig->hasthis) {
1746 cinfo->args[nParm].size = sizeof (gpointer);
1747 add_general (&gr, sz, cinfo->args + nParm);
1748 } else {
1749 cinfo->args[nParm].size = sizeof (gpointer);
1750 add_general (&gr, sz, &cinfo->args [sig->hasthis + nParm]);
1751 pstart = 1;
1752 }
1753 nParm ++;
1754 cinfo->vret_arg_index = 1;
1755 cinfo->ret.reg = gr;
1756 gr ++;
1757 } else {
1758 /* this */
1759 if (sig->hasthis) {
1760 cinfo->args[nParm].size = sizeof (gpointer);
1761 add_general (&gr, sz, cinfo->args + nParm);
1762 nParm ++;
1763 }
1764
1765 if (cinfo->struct_ret) {
1766 cinfo->ret.reg = gr;
1767 gr ++;
1768 }
1769 }
1770
1771 if ((sig->call_convention == MONO_CALL_VARARG) && (sig->param_count == 0)) {
1772 gr = S390_LAST_ARG_REG + 1;
1773 fr = S390_LAST_FPARG_REG + 1;
1774
1775 /* Emit the signature cookie just before the implicit arguments */
1776 add_general (&gr, sz, &cinfo->sigCookie);
1777 }
1778
1779 /*----------------------------------------------------------*/
1780 /* We determine the size of the parameter code and stack */
1781 /* requirements by checking the types and sizes of the */
1782 /* parameters. */
1783 /*----------------------------------------------------------*/
1784
1785 for (i = pstart; i < sig->param_count; ++i) {
1786 MonoType *ptype;
1787
1788 /*--------------------------------------------------*/
1789 /* Handle vararg type calls. All args are put on */
1790 /* the stack. */
1791 /*--------------------------------------------------*/
1792 if ((sig->call_convention == MONO_CALL_VARARG) &&
1793 (i == sig->sentinelpos)) {
1794 gr = S390_LAST_ARG_REG + 1;
1795 fr = S390_LAST_FPARG_REG + 1;
1796 add_general (&gr, sz, &cinfo->sigCookie);
1797 }
1798
1799 if (sig->params [i]->byref) {
1800 add_general (&gr, sz, cinfo->args+nParm);
1801 cinfo->args[nParm].size = sizeof(gpointer);
1802 nParm++;
1803 continue;
1804 }
1805
1806 ptype = mono_type_get_underlying_type (sig->params [i]);
1807 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1808 simpletype = ptype->type;
1809 cinfo->args[nParm].type = simpletype;
1810 switch (simpletype) {
1811 case MONO_TYPE_BOOLEAN:
1812 case MONO_TYPE_I1:
1813 case MONO_TYPE_U1:
1814 cinfo->args[nParm].size = sizeof(char);
1815 add_general (&gr, sz, cinfo->args+nParm);
1816 nParm++;
1817 break;
1818 case MONO_TYPE_I2:
1819 case MONO_TYPE_U2:
1820 case MONO_TYPE_CHAR:
1821 cinfo->args[nParm].size = sizeof(short);
1822 add_general (&gr, sz, cinfo->args+nParm);
1823 nParm++;
1824 break;
1825 case MONO_TYPE_I4:
1826 case MONO_TYPE_U4:
1827 cinfo->args[nParm].size = sizeof(int);
1828 add_general (&gr, sz, cinfo->args+nParm);
1829 nParm++;
1830 break;
1831 case MONO_TYPE_I:
1832 case MONO_TYPE_U:
1833 case MONO_TYPE_PTR:
1834 case MONO_TYPE_FNPTR:
1835 case MONO_TYPE_CLASS:
1836 case MONO_TYPE_OBJECT:
1837 case MONO_TYPE_STRING:
1838 case MONO_TYPE_SZARRAY:
1839 case MONO_TYPE_ARRAY:
1840 cinfo->args[nParm].size = sizeof(gpointer);
1841 add_general (&gr, sz, cinfo->args+nParm);
1842 nParm++;
1843 break;
1844 case MONO_TYPE_I8:
1845 case MONO_TYPE_U8:
1846 cinfo->args[nParm].size = sizeof(long long);
1847 add_general (&gr, sz, cinfo->args+nParm);
1848 nParm++;
1849 break;
1850 case MONO_TYPE_R4:
1851 cinfo->args[nParm].size = sizeof(float);
1852 add_float (&fr, sz, cinfo->args+nParm);
1853 nParm++;
1854 break;
1855 case MONO_TYPE_R8:
1856 cinfo->args[nParm].size = sizeof(double);
1857 add_float (&fr, sz, cinfo->args+nParm);
1858 nParm++;
1859 break;
1860 case MONO_TYPE_GENERICINST:
1861 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1862 cinfo->args[nParm].size = sizeof(gpointer);
1863 add_general (&gr, sz, cinfo->args+nParm);
1864 nParm++;
1865 break;
1866 }
1867 /* Fall through */
1868 case MONO_TYPE_VALUETYPE: {
1869 MonoMarshalType *info;
1870 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1871 if (sig->pinvoke)
1872 size = mono_class_native_size (klass, &align);
1873 else
1874 size = mono_class_value_size (klass, &align);
1875
1876 info = mono_marshal_load_type_info (klass);
1877
1878 if ((info->native_size == sizeof(float)) &&
1879 (info->num_fields == 1) &&
1880 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1881 cinfo->args[nParm].size = sizeof(float);
1882 add_float(&fr, sz, cinfo->args+nParm);
1883 nParm ++;
1884 break;
1885 }
1886
1887 if ((info->native_size == sizeof(double)) &&
1888 (info->num_fields == 1) &&
1889 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1890 cinfo->args[nParm].size = sizeof(double);
1891 add_float(&fr, sz, cinfo->args+nParm);
1892 nParm ++;
1893 break;
1894 }
1895
1896 cinfo->args[nParm].vtsize = 0;
1897 cinfo->args[nParm].size = 0;
1898
1899 switch (size) {
1900 /*----------------------------------*/
1901 /* On S/390, structures of size 1, */
1902 /* 2, 4, and 8 bytes are passed in */
1903 /* (a) register(s). */
1904 /*----------------------------------*/
1905 case 0:
1906 case 1:
1907 case 2:
1908 case 4:
1909 case 8:
1910 add_general(&gr, sz, cinfo->args+nParm);
1911 cinfo->args[nParm].size = size;
1912 cinfo->args[nParm].regtype = RegTypeStructByVal;
1913 nParm++;
1914 sz->local_size += sizeof(long);
1915 break;
1916 default:
1917 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1918 nParm++;
1919 }
1920 }
1921 break;
1922 case MONO_TYPE_TYPEDBYREF: {
1923 int size = sizeof (MonoTypedRef);
1924
1925 cinfo->args[nParm].vtsize = 0;
1926 cinfo->args[nParm].size = 0;
1927
1928 switch (size) {
1929 /*----------------------------------*/
1930 /* On S/390, structures of size 1, */
1931 /* 2, 4, and 8 bytes are passed in */
1932 /* (a) register(s). */
1933 /*----------------------------------*/
1934 case 0:
1935 case 1:
1936 case 2:
1937 case 4:
1938 case 8:
1939 add_general(&gr, sz, cinfo->args+nParm);
1940 cinfo->args[nParm].size = size;
1941 cinfo->args[nParm].regtype = RegTypeStructByVal;
1942 nParm++;
1943 sz->local_size += sizeof(long);
1944 break;
1945 default:
1946 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1947 nParm++;
1948 }
1949 }
1950 break;
1951 default:
1952 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1953 }
1954 }
1955
1956 /*----------------------------------------------------------*/
1957 /* Handle the case where there are no implicit arguments */
1958 /*----------------------------------------------------------*/
1959 if ((sig->call_convention == MONO_CALL_VARARG) &&
1960 (nParm > 0) &&
1961 (!sig->pinvoke) &&
1962 (sig->param_count == sig->sentinelpos)) {
1963 gr = S390_LAST_ARG_REG + 1;
1964 fr = S390_LAST_FPARG_REG + 1;
1965 add_general (&gr, sz, &cinfo->sigCookie);
1966 }
1967
1968 /*----------------------------------------------------------*/
1969 /* If we are passing a structure back then if it won't be */
1970 /* in a register(s) then we make room at the end of the */
1971 /* parameters that may have been placed on the stack */
1972 /*----------------------------------------------------------*/
1973 if (cinfo->struct_ret) {
1974 cinfo->ret.offset = sz->stack_size;
1975 switch (cinfo->ret.size) {
1976 case 0:
1977 case 1:
1978 case 2:
1979 case 4:
1980 case 8:
1981 break;
1982 default:
1983 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1984 }
1985 }
1986
1987 cinfo->lastgr = gr;
1988 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1989 sz->offset;
1990 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1991
1992 return (cinfo);
1993 }
1994
1995 /*========================= End of Function ========================*/
1996
1997 /*------------------------------------------------------------------*/
1998 /* */
1999 /* Name - mono_arch_allocate_vars */
2000 /* */
2001 /* Function - Set var information according to the calling */
2002 /* convention for S/390. The local var stuff should */
2003 /* most likely be split in another method. */
2004 /* */
2005 /* Parameter - @m - Compile unit. */
2006 /* */
2007 /*------------------------------------------------------------------*/
2008
2009 void
2010 mono_arch_allocate_vars (MonoCompile *cfg)
2011 {
2012 MonoMethodSignature *sig;
2013 MonoMethodHeader *header;
2014 MonoInst *inst;
2015 CallInfo *cinfo;
2016 int iParm, iVar, offset, align, size, curinst;
2017 int frame_reg = STK_BASE;
2018 int sArg, eArg;
2019
2020 header = cfg->header;
2021
2022 cfg->flags |= MONO_CFG_HAS_SPILLUP;
2023
2024 /*---------------------------------------------------------*/
2025 /* We use the frame register also for any method that has */
2026 /* filter clauses. This way, when the handlers are called, */
2027 /* the code will reference local variables using the frame */
2028 /* reg instead of the stack pointer: if we had to restore */
2029 /* the stack pointer, we'd corrupt the method frames that */
2030 /* are already on the stack (since filters get called */
2031 /* before stack unwinding happens) when the filter code */
2032 /* would call any method. */
2033 /*---------------------------------------------------------*/
2034 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
2035 frame_reg = s390_r11;
2036
2037 cfg->frame_reg = frame_reg;
2038
2039 cfg->arch.bkchain_reg = -1;
2040
2041 if (frame_reg != STK_BASE)
2042 cfg->used_int_regs |= 1 << frame_reg;
2043
2044 sig = mono_method_signature (cfg->method);
2045
2046 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2047
2048 if (!cinfo->struct_ret) {
2049 switch (mono_type_get_underlying_type (sig->ret)->type) {
2050 case MONO_TYPE_VOID:
2051 break;
2052 default:
2053 cfg->ret->opcode = OP_REGVAR;
2054 cfg->ret->dreg = s390_r2;
2055 break;
2056 }
2057 }
2058
2059 /*--------------------------------------------------------------*/
2060 /* local vars are at a positive offset from the stack pointer */
2061 /* also note that if the function uses alloca, we use s390_r11 */
2062 /* to point at the local variables. */
2063 /* add parameter area size for called functions */
2064 /*--------------------------------------------------------------*/
2065 if (cfg->param_area == 0)
2066 offset = S390_MINIMAL_STACK_SIZE;
2067 else
2068 offset = cfg->param_area;
2069
2070 cfg->sig_cookie = 0;
2071
2072 if (cinfo->struct_ret) {
2073 inst = cfg->vret_addr;
2074 offset = S390_ALIGN(offset, sizeof(gpointer));
2075 inst->inst_offset = offset;
2076 inst->opcode = OP_REGOFFSET;
2077 inst->inst_basereg = frame_reg;
2078 offset += sizeof(gpointer);
2079 if (G_UNLIKELY (cfg->verbose_level > 1)) {
2080 printf ("vret_addr =");
2081 mono_print_ins (cfg->vret_addr);
2082 }
2083 }
2084
2085 if (sig->hasthis) {
2086 inst = cfg->args [0];
2087 if (inst->opcode != OP_REGVAR) {
2088 inst->opcode = OP_REGOFFSET;
2089 inst->inst_basereg = frame_reg;
2090 offset = S390_ALIGN(offset, sizeof(gpointer));
2091 inst->inst_offset = offset;
2092 offset += sizeof (gpointer);
2093 }
2094 curinst = sArg = 1;
2095 } else {
2096 curinst = sArg = 0;
2097 }
2098
2099 eArg = sig->param_count + sArg;
2100
2101 if (sig->call_convention == MONO_CALL_VARARG)
2102 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
2103
2104 for (iParm = sArg; iParm < eArg; ++iParm) {
2105 inst = cfg->args [curinst];
2106 if (inst->opcode != OP_REGVAR) {
2107 switch (cinfo->args[iParm].regtype) {
2108 case RegTypeStructByAddr : {
2109 MonoInst *indir;
2110
2111 size = sizeof (gpointer);
2112
2113 inst->opcode = OP_REGOFFSET;
2114 inst->inst_basereg = frame_reg;
2115 offset = S390_ALIGN (offset, sizeof (gpointer));
2116 inst->inst_offset = offset;
2117
2118 /* Add a level of indirection */
2119 MONO_INST_NEW (cfg, indir, 0);
2120 *indir = *inst;
2121 inst->opcode = OP_VTARG_ADDR;
2122 inst->inst_left = indir;
2123 }
2124 break;
2125 case RegTypeStructByAddrOnStack : {
2126 MonoInst *indir;
2127
2128 size = sizeof (gpointer);
2129
2130 /* Similar to the == STK_BASE case below */
2131 cfg->arch.bkchain_reg = s390_r12;
2132 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
2133
2134 inst->opcode = OP_REGOFFSET;
2135 inst->dreg = mono_alloc_preg (cfg);
2136 inst->inst_basereg = cfg->arch.bkchain_reg;
2137 inst->inst_offset = cinfo->args [iParm].offset;
2138
2139 /* Add a level of indirection */
2140 MONO_INST_NEW (cfg, indir, 0);
2141 *indir = *inst;
2142 inst->opcode = OP_VTARG_ADDR;
2143 inst->inst_left = indir;
2144 break;
2145 }
2146 case RegTypeStructByVal :
2147 size = cinfo->args[iParm].size;
2148 offset = S390_ALIGN(offset, size);
2149 inst->opcode = OP_REGOFFSET;
2150 inst->inst_basereg = frame_reg;
2151 inst->inst_offset = offset;
2152 break;
2153 default :
2154 if (cinfo->args [iParm].reg == STK_BASE) {
2155 /*
2156 * These arguments are in the previous frame, so we can't
2157 * compute their offset from the current frame pointer right
2158 * now, since cfg->stack_offset is not yet known, so dedicate a
2159 * register holding the previous frame pointer.
2160 */
2161 cfg->arch.bkchain_reg = s390_r12;
2162 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
2163
2164 inst->opcode = OP_REGOFFSET;
2165 inst->inst_basereg = cfg->arch.bkchain_reg;
2166 size = (cinfo->args[iParm].size < 8
2167 ? 8 - cinfo->args[iParm].size
2168 : 0);
2169 inst->inst_offset = cinfo->args [iParm].offset + size;
2170 size = sizeof (long);
2171 } else {
2172 inst->opcode = OP_REGOFFSET;
2173 inst->inst_basereg = frame_reg;
2174 size = (cinfo->args[iParm].size < 8
2175 ? sizeof(int)
2176 : sizeof(long));
2177 offset = S390_ALIGN(offset, size);
2178 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2179 inst->inst_offset = offset;
2180 else
2181 inst->inst_offset = offset + (8 - size);
2182 }
2183 break;
2184 }
2185 #if 0
2186 if ((sig->call_convention == MONO_CALL_VARARG) &&
2187 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
2188 (iParm < sig->sentinelpos))
2189 cfg->sig_cookie += size;
2190 printf("%s %4d cookine %x\n",__FUNCTION__,__LINE__,cfg->sig_cookie);
2191 #endif
2192
2193 offset += MAX(size, 8);
2194 }
2195 curinst++;
2196 }
2197
2198 cfg->locals_min_stack_offset = offset;
2199
2200 curinst = cfg->locals_start;
2201 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
2202 inst = cfg->varinfo [iVar];
2203 if ((inst->flags & MONO_INST_IS_DEAD) ||
2204 (inst->opcode == OP_REGVAR))
2205 continue;
2206
2207 /*--------------------------------------------------*/
2208 /* inst->backend.is_pinvoke indicates native sized */
2209 /* value typs this is used by the pinvoke wrappers */
2210 /* when they call functions returning structure */
2211 /*--------------------------------------------------*/
2212 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
2213 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype),
2214 (guint32 *) &align);
2215 else
2216 size = mono_type_size (inst->inst_vtype, &align);
2217
2218 offset = S390_ALIGN(offset, align);
2219 inst->inst_offset = offset;
2220 inst->opcode = OP_REGOFFSET;
2221 inst->inst_basereg = frame_reg;
2222 offset += size;
2223 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
2224 iVar, inst->inst_offset, size));
2225 }
2226
2227 cfg->locals_max_stack_offset = offset;
2228
2229 /*------------------------------------------------------*/
2230 /* Allow space for the trace method stack area if needed*/
2231 /*------------------------------------------------------*/
2232 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
2233 offset += S390_TRACE_STACK_SIZE;
2234
2235 /*------------------------------------------------------*/
2236 /* Reserve space to save LMF and caller saved registers */
2237 /*------------------------------------------------------*/
2238 if (cfg->method->save_lmf)
2239 offset += sizeof (MonoLMF);
2240
2241 /*------------------------------------------------------*/
2242 /* align the offset */
2243 /*------------------------------------------------------*/
2244 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
2245
2246 /*------------------------------------------------------*/
2247 /* Fix offsets for args whose value is in parent frame */
2248 /*------------------------------------------------------*/
2249 for (iParm = sArg; iParm < eArg; ++iParm) {
2250 inst = cfg->args [iParm];
2251
2252 if (inst->opcode == OP_S390_STKARG) {
2253 inst->opcode = OP_REGOFFSET;
2254 inst->inst_offset += cfg->stack_offset;
2255 }
2256 }
2257 }
2258
2259 /*========================= End of Function ========================*/
2260
2261 /*------------------------------------------------------------------*/
2262 /* */
2263 /* Name - mono_arch_create_vars */
2264 /* */
2265 /*------------------------------------------------------------------*/
2266
2267 void
2268 mono_arch_create_vars (MonoCompile *cfg)
2269 {
2270 MonoMethodSignature *sig;
2271 CallInfo *cinfo;
2272
2273 sig = mono_method_signature (cfg->method);
2274
2275 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2276
2277 if (cinfo->struct_ret) {
2278 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
2279 if (G_UNLIKELY (cfg->verbose_level > 1)) {
2280 printf ("vret_addr = ");
2281 mono_print_ins (cfg->vret_addr);
2282 }
2283 }
2284 }
2285
2286 /*========================= End of Function ========================*/
2287
2288 /*------------------------------------------------------------------*/
2289 /* */
2290 /* Name - add_outarg_reg2. */
2291 /* */
2292 /*------------------------------------------------------------------*/
2293
2294 static void
2295 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2296 {
2297 MonoInst *ins;
2298
2299 switch (storage) {
2300 case RegTypeGeneral:
2301 MONO_INST_NEW (cfg, ins, OP_MOVE);
2302 ins->dreg = mono_alloc_ireg (cfg);
2303 ins->sreg1 = tree->dreg;
2304 MONO_ADD_INS (cfg->cbb, ins);
2305 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2306 break;
2307 case RegTypeFP:
2308 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2309 ins->dreg = mono_alloc_freg (cfg);
2310 ins->sreg1 = tree->dreg;
2311 MONO_ADD_INS (cfg->cbb, ins);
2312 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2313 break;
2314 case RegTypeFPR4:
2315 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2316 ins->dreg = mono_alloc_freg (cfg);
2317 ins->sreg1 = tree->dreg;
2318 MONO_ADD_INS (cfg->cbb, ins);
2319 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2320 break;
2321 default:
2322 g_assert_not_reached ();
2323 }
2324 }
2325
2326 /*========================= End of Function ========================*/
2327
2328 /*------------------------------------------------------------------*/
2329 /* */
2330 /* Name - emit_sig_cookie. */
2331 /* */
2332 /*------------------------------------------------------------------*/
2333
2334 static void
2335 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2336 {
2337 MonoMethodSignature *tmpSig;
2338 MonoInst *sig_arg;
2339
2340 cfg->disable_aot = TRUE;
2341
2342 /*----------------------------------------------------------*/
2343 /* mono_ArgIterator_Setup assumes the signature cookie is */
2344 /* passed first and all the arguments which were before it */
2345 /* passed on the stack after the signature. So compensate */
2346 /* by passing a different signature. */
2347 /*----------------------------------------------------------*/
2348 tmpSig = mono_metadata_signature_dup (call->signature);
2349 tmpSig->param_count -= call->signature->sentinelpos;
2350 tmpSig->sentinelpos = 0;
2351 if (tmpSig->param_count > 0)
2352 memcpy (tmpSig->params,
2353 call->signature->params + call->signature->sentinelpos,
2354 tmpSig->param_count * sizeof(MonoType *));
2355
2356 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2357 sig_arg->dreg = mono_alloc_ireg (cfg);
2358 sig_arg->inst_p0 = tmpSig;
2359 MONO_ADD_INS (cfg->cbb, sig_arg);
2360
2361 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2362 cinfo->sigCookie.offset, sig_arg->dreg);
2363 }
2364
2365 /*========================= End of Function ========================*/
2366
2367 /*------------------------------------------------------------------*/
2368 /* */
2369 /* Name - mono_arch_emit_call */
2370 /* */
2371 /*------------------------------------------------------------------*/
2372
2373 void
2374 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2375 {
2376 MonoInst *in;
2377 MonoMethodSignature *sig;
2378 MonoInst *ins;
2379 int i, n, lParamArea;
2380 CallInfo *cinfo;
2381 ArgInfo *ainfo = NULL;
2382 int stackSize;
2383 MonoMethodHeader *header;
2384 int frmReg;
2385
2386 sig = call->signature;
2387 n = sig->param_count + sig->hasthis;
2388 DEBUG (g_print ("Call requires: %d parameters\n",n));
2389
2390 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2391
2392 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size +
2393 cinfo->sz.parm_size + cinfo->sz.offset;
2394 call->stack_usage = MAX(stackSize, call->stack_usage);
2395 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2396 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2397 cfg->flags |= MONO_CFG_HAS_CALLS;
2398
2399 if (cinfo->struct_ret) {
2400 MONO_INST_NEW (cfg, ins, OP_MOVE);
2401 ins->sreg1 = call->vret_var->dreg;
2402 ins->dreg = mono_alloc_preg (cfg);
2403 MONO_ADD_INS (cfg->cbb, ins);
2404 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2405 }
2406
2407 header = cfg->header;
2408 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
2409 frmReg = s390_r11;
2410 else
2411 frmReg = STK_BASE;
2412
2413 for (i = 0; i < n; ++i) {
2414 MonoType *t;
2415
2416 ainfo = cinfo->args + i;
2417 if (i >= sig->hasthis)
2418 t = sig->params [i - sig->hasthis];
2419 else
2420 t = &mono_defaults.int_class->byval_arg;
2421 t = mono_type_get_underlying_type (t);
2422
2423 in = call->args [i];
2424
2425 if ((sig->call_convention == MONO_CALL_VARARG) &&
2426 (!sig->pinvoke) &&
2427 (i == sig->sentinelpos)) {
2428 emit_sig_cookie (cfg, call, cinfo);
2429 }
2430
2431 switch (ainfo->regtype) {
2432 case RegTypeGeneral:
2433 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2434 break;
2435 case RegTypeFP:
2436 if (MONO_TYPE_ISSTRUCT (t)) {
2437 /* Valuetype passed in one fp register */
2438 ainfo->regtype = RegTypeStructByValInFP;
2439 /* Fall through */
2440 } else {
2441 if (ainfo->size == 4)
2442 ainfo->regtype = RegTypeFPR4;
2443 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2444 break;
2445 }
2446 case RegTypeStructByVal:
2447 case RegTypeStructByAddr:
2448 case RegTypeStructByAddrOnStack: {
2449 guint32 align;
2450 guint32 size;
2451
2452 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2453 size = sizeof (MonoTypedRef);
2454 align = sizeof (gpointer);
2455 }
2456 else
2457 if (sig->pinvoke)
2458 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2459 else {
2460 /*
2461 * Other backends use mono_type_stack_size (), but that
2462 * aligns the size to 8, which is larger than the size of
2463 * the source, leading to reads of invalid memory if the
2464 * source is at the end of address space.
2465 */
2466 size = mono_class_value_size (in->klass, &align);
2467 }
2468
2469 g_assert (in->klass);
2470
2471 ainfo->offparm += cinfo->sz.offStruct;
2472
2473 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2474 ins->sreg1 = in->dreg;
2475 ins->klass = in->klass;
2476 ins->backend.size = ainfo->size;
2477 ins->inst_p0 = call;
2478 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2479 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2480
2481 MONO_ADD_INS (cfg->cbb, ins);
2482
2483 if (ainfo->regtype == RegTypeStructByAddr) {
2484 /*
2485 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2486 * use the normal OUTARG opcodes to pass the address of the location to
2487 * the callee.
2488 */
2489 int treg = mono_alloc_preg (cfg);
2490 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2491 frmReg, ainfo->offparm);
2492 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2493 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
2494 /* The address of the valuetype is passed on the stack */
2495 int treg = mono_alloc_preg (cfg);
2496 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2497 frmReg, ainfo->offparm);
2498 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG,
2499 ainfo->reg, ainfo->offset, treg);
2500
2501 if (cfg->compute_gc_maps) {
2502 MonoInst *def;
2503
2504 EMIT_NEW_GC_PARAM_SLOT_LIVENESS_DEF (cfg, def, ainfo->offset, t);
2505 }
2506 }
2507 break;
2508 }
2509 case RegTypeBase:
2510 if (!t->byref && t->type == MONO_TYPE_R4) {
2511 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2512 STK_BASE, ainfo->offset + 4,
2513 in->dreg);
2514 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2515 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2516 STK_BASE, ainfo->offset,
2517 in->dreg);
2518 } else {
2519 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2520 ins->inst_destbasereg = STK_BASE;
2521 ins->inst_offset = ainfo->offset;
2522 ins->sreg1 = in->dreg;
2523
2524 #if 0
2525 /* This is needed by MonoTypedRef->value to point to the correct data */
2526 if ((sig->call_convention == MONO_CALL_VARARG) &&
2527 (i >= sig->sentinelpos)) {
2528 switch (ainfo->size) {
2529 case 1:
2530 ins->opcode = OP_STOREI1_MEMBASE_REG;
2531 break;
2532 case 2:
2533 ins->opcode = OP_STOREI2_MEMBASE_REG;
2534 break;
2535 case 4:
2536 ins->opcode = OP_STOREI4_MEMBASE_REG;
2537 break;
2538 default:
2539 break;
2540 }
2541 }
2542 #endif
2543
2544 MONO_ADD_INS (cfg->cbb, ins);
2545 }
2546 break;
2547 default:
2548 g_assert_not_reached ();
2549 break;
2550 }
2551 }
2552
2553 /*
2554 * Handle the case where there are no implicit arguments
2555 */
2556 if ((sig->call_convention == MONO_CALL_VARARG) &&
2557 (!sig->pinvoke) &&
2558 (i == sig->sentinelpos)) {
2559 emit_sig_cookie (cfg, call, cinfo);
2560 }
2561 }
2562
2563 /*========================= End of Function ========================*/
2564
2565 /*------------------------------------------------------------------*/
2566 /* */
2567 /* Name - mono_arch_emit_outarg_vt */
2568 /* */
2569 /*------------------------------------------------------------------*/
2570
2571 void
2572 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2573 {
2574 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2575 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2576 int size = ins->backend.size;
2577
2578 if (ainfo->regtype == RegTypeStructByVal) {
2579 /*
2580 arg->ins.sreg1 = ainfo->reg;
2581 arg->ins.opcode = OP_OUTARG_VT;
2582 arg->size = ainfo->size;
2583 arg->offset = ainfo->offset;
2584 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2585 */
2586 if (ainfo->reg != STK_BASE) {
2587 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2588 } else {
2589 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2590 src->dreg, 0);
2591 }
2592 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2593 int dreg = mono_alloc_freg (cfg);
2594
2595 if (ainfo->size == 4) {
2596 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2597 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2598 } else {
2599 g_assert (ainfo->size == 8);
2600
2601 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2602 }
2603
2604 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2605 } else {
2606 MonoMethodHeader *header;
2607 int srcReg;
2608
2609 header = mono_method_get_header (cfg->method);
2610 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
2611 srcReg = s390_r11;
2612 else
2613 srcReg = STK_BASE;
2614
2615 MONO_EMIT_NEW_MOVE (cfg, srcReg, ainfo->offparm,
2616 src->dreg, 0, size);
2617
2618 if (cfg->compute_gc_maps) {
2619 MonoInst *def;
2620
2621 EMIT_NEW_GC_PARAM_SLOT_LIVENESS_DEF (cfg, def, ainfo->offset, &ins->klass->byval_arg);
2622 }
2623 }
2624 }
2625
2626 /*========================= End of Function ========================*/
2627
2628 /*------------------------------------------------------------------*/
2629 /* */
2630 /* Name - mono_arch_emit_setret */
2631 /* */
2632 /*------------------------------------------------------------------*/
2633
2634 void
2635 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2636 {
2637 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2638
2639 if (!ret->byref) {
2640 if (ret->type == MONO_TYPE_R4) {
2641 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2642 return;
2643 } else if (ret->type == MONO_TYPE_R8) {
2644 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2645 return;
2646 }
2647 }
2648
2649 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2650 }
2651
2652 /*========================= End of Function ========================*/
2653
2654 /*------------------------------------------------------------------*/
2655 /* */
2656 /* Name - mono_arch_instrument_mem_needs */
2657 /* */
2658 /* Function - Allow tracing to work with this interface (with */
2659 /* an optional argument). */
2660 /* */
2661 /*------------------------------------------------------------------*/
2662
2663 void
2664 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2665 {
2666 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2667 *stack = 0;
2668 /* split prolog-epilog requirements? */
2669 *code = 50; /* max bytes needed: check this number */
2670 }
2671
2672 /*========================= End of Function ========================*/
2673
2674 /*------------------------------------------------------------------*/
2675 /* */
2676 /* Name - mono_arch_instrument_prolog */
2677 /* */
2678 /* Function - Create an "instrumented" prolog. */
2679 /* */
2680 /*------------------------------------------------------------------*/
2681
2682 void*
2683 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2684 gboolean enable_arguments)
2685 {
2686 guchar *code = p;
2687 int parmOffset,
2688 fpOffset,
2689 baseReg;
2690
2691 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2692 if (cfg->method->save_lmf)
2693 parmOffset -= sizeof(MonoLMF);
2694 fpOffset = parmOffset + (5*sizeof(gpointer));
2695 if ((!has_ld) && (fpOffset > 4096)) {
2696 s390_lgr (code, s390_r12, STK_BASE);
2697 baseReg = s390_r12;
2698 while (fpOffset > 4096) {
2699 s390_aghi (code, baseReg, 4096);
2700 fpOffset -= 4096;
2701 parmOffset -= 4096;
2702 }
2703 } else {
2704 baseReg = STK_BASE;
2705 }
2706
2707 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2708 if (has_ld) {
2709 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2710 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2711 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2712 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2713 } else {
2714 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2715 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2716 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2717 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2718 }
2719 s390_basr (code, s390_r13, 0);
2720 s390_j (code, 10);
2721 s390_llong(code, cfg->method);
2722 s390_llong(code, func);
2723 s390_lg (code, s390_r2, 0, s390_r13, 4);
2724 if (has_ld)
2725 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2726 else
2727 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2728 s390_lgr (code, s390_r4, STK_BASE);
2729 s390_aghi (code, s390_r4, cfg->stack_usage);
2730 s390_lg (code, s390_r1, 0, s390_r13, 12);
2731 s390_basr (code, s390_r14, s390_r1);
2732 if (has_ld) {
2733 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2734 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2735 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2736 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2737 } else {
2738 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2739 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2740 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2741 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2742 }
2743 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2744
2745 return code;
2746 }
2747
2748 /*========================= End of Function ========================*/
2749
2750 /*------------------------------------------------------------------*/
2751 /* */
2752 /* Name - mono_arch_instrument_epilog */
2753 /* */
2754 /* Function - Create an epilog that will handle the returned */
2755 /* values used in instrumentation. */
2756 /* */
2757 /*------------------------------------------------------------------*/
2758
2759 void*
2760 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2761 {
2762 guchar *code = p;
2763 int save_mode = SAVE_NONE,
2764 saveOffset;
2765 MonoMethod *method = cfg->method;
2766 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2767
2768 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2769 if (method->save_lmf)
2770 saveOffset -= sizeof(MonoLMF);
2771
2772 handle_enum:
2773 switch (rtype) {
2774 case MONO_TYPE_VOID:
2775 /* special case string .ctor icall */
2776 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2777 save_mode = SAVE_ONE;
2778 else
2779 save_mode = SAVE_NONE;
2780 break;
2781 case MONO_TYPE_I8:
2782 case MONO_TYPE_U8:
2783 save_mode = SAVE_ONE;
2784 break;
2785 case MONO_TYPE_R4:
2786 save_mode = SAVE_R4;
2787 break;
2788 case MONO_TYPE_R8:
2789 save_mode = SAVE_R8;
2790 break;
2791 case MONO_TYPE_VALUETYPE:
2792 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2793 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2794 goto handle_enum;
2795 }
2796 save_mode = SAVE_STRUCT;
2797 break;
2798 default:
2799 save_mode = SAVE_ONE;
2800 break;
2801 }
2802
2803 switch (save_mode) {
2804 case SAVE_ONE:
2805 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2806 if (enable_arguments) {
2807 s390_lgr (code, s390_r3, s390_r2);
2808 }
2809 break;
2810 case SAVE_R4:
2811 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2812 if (enable_arguments) {
2813 s390_ldebr (code, s390_f0, s390_f0);
2814 }
2815 break;
2816 case SAVE_R8:
2817 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2818 break;
2819 case SAVE_STRUCT:
2820 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2821 if (enable_arguments) {
2822 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2823 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2824 }
2825 break;
2826 case SAVE_NONE:
2827 default:
2828 break;
2829 }
2830
2831 s390_basr (code, s390_r13, 0);
2832 s390_j (code, 10);
2833 s390_llong(code, cfg->method);
2834 s390_llong(code, func);
2835 s390_lg (code, s390_r2, 0, s390_r13, 4);
2836 s390_lg (code, s390_r1, 0, s390_r13, 12);
2837 s390_basr (code, s390_r14, s390_r1);
2838
2839 switch (save_mode) {
2840 case SAVE_ONE:
2841 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2842 break;
2843 case SAVE_R4:
2844 case SAVE_R8:
2845 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2846 break;
2847 case SAVE_STRUCT:
2848 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2849 break;
2850 case SAVE_NONE:
2851 default:
2852 break;
2853 }
2854
2855 return code;
2856 }
2857
2858 /*========================= End of Function ========================*/
2859
2860 /*------------------------------------------------------------------*/
2861 /* */
2862 /* Name - mono_arch_peephole_pass_1 */
2863 /* */
2864 /* Function - Form a peephole pass at the code looking for */
2865 /* simple optimizations. */
2866 /* */
2867 /*------------------------------------------------------------------*/
2868
2869 void
2870 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2871 {
2872 }
2873
2874 /*========================= End of Function ========================*/
2875
2876 /*------------------------------------------------------------------*/
2877 /* */
2878 /* Name - mono_arch_peephole_pass_2 */
2879 /* */
2880 /* Function - Form a peephole pass at the code looking for */
2881 /* simple optimizations. */
2882 /* */
2883 /*------------------------------------------------------------------*/
2884
2885 void
2886 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2887 {
2888 MonoInst *ins, *n;
2889
2890 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2891 mono_peephole_ins (bb, ins);
2892 }
2893 }
2894
2895 /*========================= End of Function ========================*/
2896
2897 /*------------------------------------------------------------------*/
2898 /* */
2899 /* Name - mono_arch_lowering_pass. */
2900 /* */
2901 /*------------------------------------------------------------------*/
2902
2903 void
2904 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2905 {
2906 MonoInst *ins, *next;
2907
2908 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2909 switch (ins->opcode) {
2910 case OP_DIV_IMM:
2911 case OP_REM_IMM:
2912 case OP_IDIV_IMM:
2913 case OP_IREM_IMM:
2914 case OP_IDIV_UN_IMM:
2915 case OP_IREM_UN_IMM:
2916 case OP_LAND_IMM:
2917 case OP_LOR_IMM:
2918 case OP_LXOR_IMM:
2919 case OP_LOCALLOC_IMM:
2920 mono_decompose_op_imm (cfg, bb, ins);
2921 break;
2922 case OP_LADD_IMM:
2923 if (!s390_is_imm16 (ins->inst_imm))
2924 /* This is created by the memcpy code which ignores is_inst_imm */
2925 mono_decompose_op_imm (cfg, bb, ins);
2926 break;
2927 default:
2928 break;
2929 }
2930 }
2931
2932 bb->max_vreg = cfg->next_vreg;
2933 }
2934
2935 /*========================= End of Function ========================*/
2936
2937 /*------------------------------------------------------------------*/
2938 /* */
2939 /* Name - emit_float_to_int */
2940 /* */
2941 /* Function - Create instructions which will convert a floating */
2942 /* point value to integer. */
2943 /* */
2944 /*------------------------------------------------------------------*/
2945
2946 static guchar*
2947 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2948 {
2949 /* sreg is a float, dreg is an integer reg. */
2950 if (is_signed) {
2951 s390_cgdbr (code, dreg, 5, sreg);
2952 switch (size) {
2953 case 1:
2954 s390_lghi (code, s390_r0, 0);
2955 s390_lghi (code, s390_r13, 0xff);
2956 s390_ltgr (code, dreg, dreg);
2957 s390_jnl (code, 4);
2958 s390_lghi (code, s390_r0, 0x80);
2959 s390_ngr (code, dreg, s390_r13);
2960 s390_ogr (code, dreg, s390_r0);
2961 break;
2962 }
2963 } else {
2964 short *o[1];
2965 s390_basr (code, s390_r13, 0);
2966 s390_j (code, 10);
2967 s390_llong (code, 0x41e0000000000000llu);
2968 s390_llong (code, 0x41f0000000000000llu);
2969 s390_ldr (code, s390_f15, sreg);
2970 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2971 s390_jl (code, 0); CODEPTR (code, o[0]);
2972 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2973 s390_cfdbr (code, dreg, 7, s390_f15);
2974 s390_j (code, 4);
2975 PTRSLOT (code, o[0]);
2976 s390_cfdbr (code, dreg, 5, sreg);
2977 switch (size) {
2978 case 1:
2979 s390_lghi (code, s390_r0, 0xff);
2980 s390_ngr (code, dreg, s390_r0);
2981 break;
2982 case 2:
2983 s390_lghi (code, s390_r0, -1);
2984 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2985 s390_ngr (code, dreg, s390_r0);
2986 break;
2987 }
2988 }
2989 return code;
2990 }
2991
2992 /*========================= End of Function ========================*/
2993
2994 /*------------------------------------------------------------------*/
2995 /* */
2996 /* Name - gboolean_is_unsigned. */
2997 /* */
2998 /* Function - Return TRUE if next opcode is checking for un- */
2999 /* signed value. */
3000 /* */
3001 /*------------------------------------------------------------------*/
3002
3003 static
3004 gboolean is_unsigned (MonoInst *next)
3005 {
3006 if ((next) &&
3007 (((next->opcode >= OP_IBNE_UN) &&
3008 (next->opcode <= OP_IBLT_UN)) ||
3009 ((next->opcode >= OP_LBNE_UN) &&
3010 (next->opcode <= OP_LBLT_UN)) ||
3011 ((next->opcode >= OP_COND_EXC_NE_UN) &&
3012 (next->opcode <= OP_COND_EXC_LT_UN)) ||
3013 ((next->opcode >= OP_COND_EXC_INE_UN) &&
3014 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
3015 ((next->opcode == OP_CLT_UN) ||
3016 (next->opcode == OP_CGT_UN)) ||
3017 ((next->opcode == OP_ICLT_UN) ||
3018 (next->opcode == OP_ICGT_UN) ||
3019 (next->opcode == OP_LCLT_UN) ||
3020 (next->opcode == OP_LCGT_UN))))
3021 return TRUE;
3022 else
3023 return FALSE;
3024 }
3025
3026 /*========================= End of Function ========================*/
3027
3028 /*------------------------------------------------------------------*/
3029 /* */
3030 /* Name - mono_arch_output_basic_block */
3031 /* */
3032 /* Function - Perform the "real" work of emitting instructions */
3033 /* that will do the work of in the basic block. */
3034 /* */
3035 /*------------------------------------------------------------------*/
3036
3037 void
3038 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
3039 {
3040 MonoInst *ins;
3041 MonoCallInst *call;
3042 guint offset;
3043 guint8 *code = cfg->native_code + cfg->code_len;
3044 guint last_offset = 0;
3045 int max_len, cpos, src2;
3046
3047 /* we don't align basic blocks of loops on s390 */
3048
3049 if (cfg->verbose_level > 2)
3050 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
3051
3052 cpos = bb->max_offset;
3053
3054 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
3055 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
3056 //g_assert (!mono_compile_aot);
3057 //cpos += 6;
3058 //if (bb->cil_code)
3059 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
3060 /* this is not thread save, but good enough */
3061 /* fixme: howto handle overflows? */
3062 //x86_inc_mem (code, &cov->data [bb->dfn].count);
3063 }
3064
3065 MONO_BB_FOR_EACH_INS (bb, ins) {
3066 offset = code - cfg->native_code;
3067
3068 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
3069
3070 if (offset > (cfg->code_size - max_len - 16)) {
3071 cfg->code_size *= 2;
3072 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
3073 code = cfg->native_code + offset;
3074 }
3075
3076 mono_debug_record_line_number (cfg, ins, offset);
3077
3078 switch (ins->opcode) {
3079 case OP_STOREI1_MEMBASE_IMM: {
3080 s390_lghi (code, s390_r0, ins->inst_imm);
3081 S390_LONG (code, stcy, stc, s390_r0, 0,
3082 ins->inst_destbasereg, ins->inst_offset);
3083 }
3084 break;
3085 case OP_STOREI2_MEMBASE_IMM: {
3086 s390_lghi (code, s390_r0, ins->inst_imm);
3087 S390_LONG (code, sthy, sth, s390_r0, 0,
3088 ins->inst_destbasereg, ins->inst_offset);
3089 }
3090 break;
3091 case OP_STOREI4_MEMBASE_IMM: {
3092 if (s390_is_imm16(ins->inst_imm)) {
3093 s390_lghi (code, s390_r0, ins->inst_imm);
3094 } else {
3095 s390_basr (code, s390_r13, 0);
3096 s390_j (code, 6);
3097 s390_llong(code, ins->inst_imm);
3098 s390_lg (code, s390_r0, 0, s390_r13, 4);
3099 }
3100 S390_LONG (code, sty, st, s390_r0, 0,
3101 ins->inst_destbasereg, ins->inst_offset);
3102 }
3103 break;
3104 case OP_STORE_MEMBASE_IMM:
3105 case OP_STOREI8_MEMBASE_IMM: {
3106 if (s390_is_imm16(ins->inst_imm)) {
3107 s390_lghi (code, s390_r0, ins->inst_imm);
3108 } else {
3109 s390_basr (code, s390_r13, 0);
3110 s390_j (code, 6);
3111 s390_llong(code, ins->inst_imm);
3112 s390_lg (code, s390_r0, 0, s390_r13, 4);
3113 }
3114 S390_LONG (code, stg, stg, s390_r0, 0,
3115 ins->inst_destbasereg, ins->inst_offset);
3116 }
3117 break;
3118 case OP_STOREI1_MEMBASE_REG: {
3119 S390_LONG (code, stcy, stc, ins->sreg1, 0,
3120 ins->inst_destbasereg, ins->inst_offset);
3121 }
3122 break;
3123 case OP_STOREI2_MEMBASE_REG: {
3124 S390_LONG (code, sthy, sth, ins->sreg1, 0,
3125 ins->inst_destbasereg, ins->inst_offset);
3126 }
3127 break;
3128 case OP_STOREI4_MEMBASE_REG: {
3129 S390_LONG (code, sty, st, ins->sreg1, 0,
3130 ins->inst_destbasereg, ins->inst_offset);
3131 }
3132 break;
3133 case OP_STORE_MEMBASE_REG:
3134 case OP_STOREI8_MEMBASE_REG: {
3135 S390_LONG (code, stg, stg, ins->sreg1, 0,
3136 ins->inst_destbasereg, ins->inst_offset);
3137 }
3138 break;
3139 case OP_LOADU4_MEM:
3140 g_assert_not_reached ();
3141 break;
3142 case OP_LOAD_MEMBASE:
3143 case OP_LOADI8_MEMBASE: {
3144 S390_LONG (code, lg, lg, ins->dreg, 0,
3145 ins->inst_basereg, ins->inst_offset);
3146 }
3147 break;
3148 case OP_LOADI4_MEMBASE: {
3149 S390_LONG (code, lgf, lgf, ins->dreg, 0,
3150 ins->inst_basereg, ins->inst_offset);
3151 }
3152 break;
3153 case OP_LOADU4_MEMBASE: {
3154 S390_LONG (code, llgf, llgf, ins->dreg, 0,
3155 ins->inst_basereg, ins->inst_offset);
3156 }
3157 break;
3158 case OP_LOADU1_MEMBASE: {
3159 S390_LONG (code, llgc, llgc, ins->dreg, 0,
3160 ins->inst_basereg, ins->inst_offset);
3161 }
3162 break;
3163 case OP_LOADI1_MEMBASE: {
3164 S390_LONG (code, lgb, lgb, ins->dreg, 0,
3165 ins->inst_basereg, ins->inst_offset);
3166 }
3167 break;
3168 case OP_LOADU2_MEMBASE: {
3169 S390_LONG (code, llgh, llgh, ins->dreg, 0,
3170 ins->inst_basereg, ins->inst_offset);
3171 }
3172 break;
3173 case OP_LOADI2_MEMBASE: {
3174 S390_LONG (code, lgh, lgh, ins->dreg, 0,
3175 ins->inst_basereg, ins->inst_offset);
3176 }
3177 break;
3178 case OP_LCONV_TO_I1: {
3179 #if 0
3180 s390_lgbr (code, ins->dreg, ins->sreg1);
3181 #else
3182 s390_sllg (code, ins->dreg, ins->sreg1, 0, 56);
3183 s390_srag (code, ins->dreg, ins->dreg, 0, 56);
3184 #endif
3185 }
3186 break;
3187 case OP_LCONV_TO_I2: {
3188 #if 0
3189 s390_lghr (code, ins->dreg, ins->sreg1);
3190 #else
3191 s390_sllg (code, ins->dreg, ins->sreg1, 0, 48);
3192 s390_srag (code, ins->dreg, ins->dreg, 0, 48);
3193 #endif
3194 }
3195 break;
3196 case OP_LCONV_TO_U1: {
3197 #if 0
3198 s390_llghr (code, ins->dreg, ins->sreg1);
3199 #else
3200 if (ins->dreg != ins->sreg1)
3201 s390_lgr (code, ins->dreg, ins->sreg1);
3202 s390_lghi (code, s390_r0, 0xff);
3203 s390_ngr (code, ins->dreg, s390_r0);
3204 #endif
3205 }
3206 break;
3207 case OP_LCONV_TO_U2: {
3208 #if 0
3209 s390_llghr (code, ins->dreg, ins->sreg1);
3210 #else
3211 if (ins->dreg != ins->sreg1)
3212 s390_lgr (code, ins->dreg, ins->sreg1);
3213 s390_lghi (code, s390_r0, -1);
3214 s390_srlg (code, s390_r0, s390_r0, 0, 48);
3215 s390_ngr (code, ins->dreg, s390_r0);
3216 #endif
3217 }
3218 break;
3219 case OP_ICONV_TO_I1: {
3220 #if 0
3221 s390_lbr (code, ins->dreg, ins->sreg1);
3222 #else
3223 if (ins->dreg != ins->sreg1)
3224 s390_lr (code, ins->dreg, ins->sreg1);
3225 s390_sll (code, ins->dreg, 0, 24);
3226 s390_sra (code, ins->dreg, 0, 24);
3227
3228 #endif
3229 }
3230 break;
3231 case OP_ICONV_TO_I2: {
3232 #if 0
3233 s390_lhr (code, ins->dreg, ins->sreg1);
3234 #else
3235 if (ins->dreg != ins->sreg1)
3236 s390_lr (code, ins->dreg, ins->sreg1);
3237 s390_sll (code, ins->dreg, 0, 16);
3238 s390_sra (code, ins->dreg, 0, 16);
3239 #endif
3240 }
3241 break;
3242 case OP_ICONV_TO_U1: {
3243 #if 0
3244 s390_llcr (code, ins->dreg, ins->sreg1);
3245 #else
3246 if (ins->dreg != ins->sreg1)
3247 s390_lr (code, ins->dreg, ins->sreg1);
3248 s390_lhi (code, s390_r0, 0xff);
3249 s390_nr (code, ins->dreg, s390_r0);
3250 #endif
3251 }
3252 break;
3253 case OP_ICONV_TO_U2: {
3254 #if 0
3255 s390_llhr (code, ins->dreg, ins->sreg1);
3256 #else
3257 if (ins->dreg != ins->sreg1)
3258 s390_lr (code, ins->dreg, ins->sreg1);
3259 s390_lhi (code, s390_r0, -1);
3260 s390_srl (code, s390_r0, 0, 16);
3261 s390_nr (code, ins->dreg, s390_r0);
3262 #endif
3263 }
3264 break;
3265 case OP_COMPARE:
3266 case OP_LCOMPARE: {
3267 if (is_unsigned (ins->next))
3268 s390_clgr (code, ins->sreg1, ins->sreg2);
3269 else
3270 s390_cgr (code, ins->sreg1, ins->sreg2);
3271 }
3272 break;
3273 case OP_ICOMPARE: {
3274 if (is_unsigned (ins->next))
3275 s390_clr (code, ins->sreg1, ins->sreg2);
3276 else
3277 s390_cr (code, ins->sreg1, ins->sreg2);
3278 }
3279 break;
3280 case OP_COMPARE_IMM:
3281 case OP_LCOMPARE_IMM: {
3282 if (s390_is_imm16 (ins->inst_imm)) {
3283 s390_lghi (code, s390_r0, ins->inst_imm);
3284 if (is_unsigned (ins->next))
3285 s390_clgr (code, ins->sreg1, s390_r0);
3286 else
3287 s390_cgr (code, ins->sreg1, s390_r0);
3288 } else {
3289 s390_basr (code, s390_r13, 0);
3290 s390_j (code, 6);
3291 s390_llong(code, ins->inst_imm);
3292 if (is_unsigned (ins->next))
3293 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3294 else
3295 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3296 }
3297 }
3298 break;
3299 case OP_ICOMPARE_IMM: {
3300 if (s390_is_imm16 (ins->inst_imm)) {
3301 s390_lghi (code, s390_r0, ins->inst_imm);
3302 if (is_unsigned (ins->next))
3303 s390_clr (code, ins->sreg1, s390_r0);
3304 else
3305 s390_cr (code, ins->sreg1, s390_r0);
3306 }
3307 else {
3308 s390_basr (code, s390_r13, 0);
3309 s390_j (code, 4);
3310 s390_word (code, ins->inst_imm);
3311 if (is_unsigned (ins->next))
3312 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3313 else
3314 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3315 }
3316 }
3317 break;
3318 case OP_BREAK: {
3319 s390_basr (code, s390_r13, 0);
3320 s390_j (code, 6);
3321 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_ABS,
3322 mono_break);
3323 s390_llong (code, mono_break);
3324 s390_lg (code, s390_r14, 0, s390_r13, 4);
3325 s390_basr (code, s390_r14, s390_r14);
3326 }
3327 break;
3328 case OP_ADDCC: {
3329 CHECK_SRCDST_COM;
3330 s390_agr (code, ins->dreg, src2);
3331 }
3332 break;
3333 case OP_LADD: {
3334 CHECK_SRCDST_COM;
3335 s390_agr (code, ins->dreg, src2);
3336 }
3337 break;
3338 case OP_ADC: {
3339 CHECK_SRCDST_COM;
3340 s390_alcgr (code, ins->dreg, src2);
3341 }
3342 break;
3343 case OP_ADD_IMM: {
3344 if (ins->dreg != ins->sreg1) {
3345 s390_lgr (code, ins->dreg, ins->sreg1);
3346 }
3347 if (s390_is_imm16 (ins->inst_imm)) {
3348 s390_aghi (code, ins->dreg, ins->inst_imm);
3349 } else {
3350 s390_basr (code, s390_r13, 0);
3351 s390_j (code, 6);
3352 s390_llong(code, ins->inst_imm);
3353 s390_ag (code, ins->dreg, 0, s390_r13, 4);
3354 }
3355 }
3356 break;
3357 case OP_LADD_IMM: {
3358 if (ins->dreg != ins->sreg1) {
3359 s390_lgr (code, ins->dreg, ins->sreg1);
3360 }
3361 g_assert (s390_is_imm16 (ins->inst_imm));
3362 s390_aghi (code, ins->dreg, ins->inst_imm);
3363 }
3364 break;
3365 case OP_ADC_IMM: {
3366 if (ins->dreg != ins->sreg1) {
3367 s390_lgr (code, ins->dreg, ins->sreg1);
3368 }
3369 if (s390_is_imm16 (ins->inst_imm)) {
3370 s390_lghi (code, s390_r0, ins->inst_imm);
3371 s390_alcgr (code, ins->dreg, s390_r0);
3372 } else {
3373 s390_basr (code, s390_r13, 0);
3374 s390_j (code, 6);
3375 s390_llong (code, ins->inst_imm);
3376 s390_lg (code, s390_r13, 0, s390_r13, 4);
3377 s390_alcgr (code, ins->dreg, s390_r13);
3378 }
3379 }
3380 break;
3381 case OP_IADD_OVF:
3382 case OP_S390_IADD_OVF: {
3383 CHECK_SRCDST_COM;
3384 s390_ar (code, ins->dreg, src2);
3385 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3386 s390_lgfr (code, ins->dreg, ins->dreg);
3387 }
3388 break;
3389 case OP_IADD_OVF_UN:
3390 case OP_S390_IADD_OVF_UN: {
3391 CHECK_SRCDST_COM;
3392 s390_algr (code, ins->dreg, src2);
3393 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3394 s390_llgfr (code, ins->dreg, ins->dreg);
3395 }
3396 break;
3397 case OP_ADD_OVF_CARRY: {
3398 CHECK_SRCDST_COM;
3399 s390_lghi (code, s390_r0, 0);
3400 s390_lgr (code, s390_r1, s390_r0);
3401 s390_alcgr (code, s390_r0, s390_r1);
3402 s390_agr (code, ins->dreg, src2);
3403 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3404 s390_agr (code, ins->dreg, s390_r0);
3405 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3406 }
3407 break;
3408 case OP_ADD_OVF_UN_CARRY: {
3409 CHECK_SRCDST_COM;
3410 s390_alcgr (code, ins->dreg, src2);
3411 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3412 }
3413 break;
3414 case OP_SUBCC: {
3415 CHECK_SRCDST_NCOM;
3416 s390_sgr (code, ins->dreg, src2);
3417 }
3418 break;
3419 case OP_LSUB: {
3420 CHECK_SRCDST_NCOM;
3421 s390_sgr (code, ins->dreg, src2);
3422 }
3423 break;
3424 case OP_SBB: {
3425 CHECK_SRCDST_NCOM;
3426 s390_slbgr(code, ins->dreg, src2);
3427 }
3428 break;
3429 case OP_SUB_IMM: {
3430 if (ins->dreg != ins->sreg1) {
3431 s390_lgr (code, ins->dreg, ins->sreg1);
3432 }
3433 if (s390_is_imm16 (-ins->inst_imm)) {
3434 s390_lghi (code, s390_r0, ins->inst_imm);
3435 s390_slgr (code, ins->dreg, s390_r0);
3436 } else {
3437 s390_basr (code, s390_r13, 0);
3438 s390_j (code, 6);
3439 s390_llong(code, ins->inst_imm);
3440 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3441 }
3442 }
3443 break;
3444 case OP_LSUB_IMM: {
3445 if (ins->dreg != ins->sreg1) {
3446 s390_lgr (code, ins->dreg, ins->sreg1);
3447 }
3448 if (s390_is_imm16 (-ins->inst_imm)) {
3449 s390_lghi (code, s390_r0, ins->inst_imm);
3450 s390_slgr (code, ins->dreg, s390_r0);
3451 } else {
3452 s390_basr (code, s390_r13, 0);
3453 s390_j (code, 6);
3454 s390_llong(code, ins->inst_imm);
3455 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3456 }
3457 }
3458 break;
3459 case OP_SBB_IMM: {
3460 if (ins->dreg != ins->sreg1) {
3461 s390_lgr (code, ins->dreg, ins->sreg1);
3462 }
3463 if (s390_is_imm16 (-ins->inst_imm)) {
3464 s390_lghi (code, s390_r0, ins->inst_imm);
3465 s390_slbgr (code, ins->dreg, s390_r0);
3466 } else {
3467 s390_basr (code, s390_r13, 0);
3468 s390_j (code, 6);
3469 s390_llong(code, ins->inst_imm);
3470 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
3471 }
3472 }
3473 break;
3474 case OP_SUB_OVF_CARRY: {
3475 CHECK_SRCDST_NCOM;
3476 s390_lghi (code, s390_r0, 0);
3477 s390_lgr (code, s390_r1, s390_r0);
3478 s390_slbgr (code, s390_r0, s390_r1);
3479 s390_sgr (code, ins->dreg, src2);
3480 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3481 s390_agr (code, ins->dreg, s390_r0);
3482 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3483 }
3484 break;
3485 case OP_SUB_OVF_UN_CARRY: {
3486 CHECK_SRCDST_NCOM;
3487 s390_slbgr (code, ins->dreg, src2);
3488 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3489 }
3490 break;
3491 case OP_LAND: {
3492 if (ins->sreg1 == ins->dreg) {
3493 s390_ngr (code, ins->dreg, ins->sreg2);
3494 }
3495 else {
3496 if (ins->sreg2 == ins->dreg) {
3497 s390_ngr (code, ins->dreg, ins->sreg1);
3498 }
3499 else {
3500 s390_lgr (code, ins->dreg, ins->sreg1);
3501 s390_ngr (code, ins->dreg, ins->sreg2);
3502 }
3503 }
3504 }
3505 break;
3506 case OP_AND_IMM: {
3507 if (ins->dreg != ins->sreg1) {
3508 s390_lgr (code, ins->dreg, ins->sreg1);
3509 }
3510 if (s390_is_imm16 (ins->inst_imm)) {
3511 s390_lghi (code, s390_r0, ins->inst_imm);
3512 s390_ngr (code, ins->dreg, s390_r0);
3513 } else {
3514 s390_basr (code, s390_r13, 0);
3515 s390_j (code, 6);
3516 s390_llong(code, ins->inst_imm);
3517 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3518 }
3519 }
3520 break;
3521 case OP_LDIV: {
3522 s390_lgr (code, s390_r1, ins->sreg1);
3523 s390_dsgr (code, s390_r0, ins->sreg2);
3524 s390_lgr (code, ins->dreg, s390_r1);
3525 }
3526 break;
3527 case OP_LDIV_UN: {
3528 s390_lgr (code, s390_r1, ins->sreg1);
3529 s390_lghi (code, s390_r0, 0);
3530 s390_dlgr (code, s390_r0, ins->sreg2);
3531 s390_lgr (code, ins->dreg, s390_r1);
3532 }
3533 break;
3534 case OP_LREM: {
3535 s390_lgr (code, s390_r1, ins->sreg1);
3536 s390_dsgr (code, s390_r0, ins->sreg2);
3537 s390_lgr (code, ins->dreg, s390_r0);
3538 break;
3539 }
3540 case OP_LREM_UN: {
3541 s390_lgr (code, s390_r1, ins->sreg1);
3542 s390_lghi (code, s390_r0, 0);
3543 s390_dlgr (code, s390_r0, ins->sreg2);
3544 s390_lgr (code, ins->dreg, s390_r0);
3545 }
3546 break;
3547 case OP_LOR: {
3548 if (ins->sreg1 == ins->dreg) {
3549 s390_ogr (code, ins->dreg, ins->sreg2);
3550 }
3551 else {
3552 if (ins->sreg2 == ins->dreg) {
3553 s390_ogr (code, ins->dreg, ins->sreg1);
3554 }
3555 else {
3556 s390_lgr (code, ins->dreg, ins->sreg1);
3557 s390_ogr (code, ins->dreg, ins->sreg2);
3558 }
3559 }
3560 }
3561 break;
3562 case OP_OR_IMM: {
3563 if (ins->dreg != ins->sreg1) {
3564 s390_lgr (code, ins->dreg, ins->sreg1);
3565 }
3566 if (s390_is_imm16 (ins->inst_imm)) {
3567 s390_lghi (code, s390_r0, ins->inst_imm);
3568 s390_ogr (code, ins->dreg, s390_r0);
3569 } else {
3570 s390_basr (code, s390_r13, 0);
3571 s390_j (code, 6);
3572 s390_llong(code, ins->inst_imm);
3573 s390_og (code, ins->dreg, 0, s390_r13, 4);
3574 }
3575 }
3576 break;
3577 case OP_LXOR: {
3578 if (ins->sreg1 == ins->dreg) {
3579 s390_xgr (code, ins->dreg, ins->sreg2);
3580 }
3581 else {
3582 if (ins->sreg2 == ins->dreg) {
3583 s390_xgr (code, ins->dreg, ins->sreg1);
3584 }
3585 else {
3586 s390_lgr (code, ins->dreg, ins->sreg1);
3587 s390_xgr (code, ins->dreg, ins->sreg2);
3588 }
3589 }
3590 }
3591 break;
3592 case OP_XOR_IMM: {
3593 if (ins->dreg != ins->sreg1) {
3594 s390_lgr (code, ins->dreg, ins->sreg1);
3595 }
3596 if (s390_is_imm16 (ins->inst_imm)) {
3597 s390_lghi (code, s390_r0, ins->inst_imm);
3598 s390_xgr (code, ins->dreg, s390_r0);
3599 } else {
3600 s390_basr (code, s390_r13, 0);
3601 s390_j (code, 6);
3602 s390_llong(code, ins->inst_imm);
3603 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3604 }
3605 }
3606 break;
3607 case OP_LSHL: {
3608 CHECK_SRCDST_NCOM;
3609 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3610 }
3611 break;
3612 case OP_SHL_IMM:
3613 case OP_LSHL_IMM: {
3614 if (ins->sreg1 != ins->dreg) {
3615 s390_lgr (code, ins->dreg, ins->sreg1);
3616 }
3617 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3618 }
3619 break;
3620 case OP_LSHR: {
3621 CHECK_SRCDST_NCOM;
3622 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3623 }
3624 break;
3625 case OP_SHR_IMM:
3626 case OP_LSHR_IMM: {
3627 if (ins->sreg1 != ins->dreg) {
3628 s390_lgr (code, ins->dreg, ins->sreg1);
3629 }
3630 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3631 }
3632 break;
3633 case OP_SHR_UN_IMM:
3634 case OP_LSHR_UN_IMM: {
3635 if (ins->sreg1 != ins->dreg) {
3636 s390_lgr (code, ins->dreg, ins->sreg1);
3637 }
3638 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3639 }
3640 break;
3641 case OP_LSHR_UN: {
3642 CHECK_SRCDST_NCOM;
3643 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3644 }
3645 break;
3646 case OP_LNOT: {
3647 if (ins->sreg1 != ins->dreg) {
3648 s390_lgr (code, ins->dreg, ins->sreg1);
3649 }
3650 s390_lghi (code, s390_r0, -1);
3651 s390_xgr (code, ins->dreg, s390_r0);
3652 }
3653 break;
3654 case OP_LNEG: {
3655 s390_lcgr (code, ins->dreg, ins->sreg1);
3656 }
3657 break;
3658 case OP_LMUL: {
3659 CHECK_SRCDST_COM;
3660 s390_msgr (code, ins->dreg, src2);
3661 }
3662 break;
3663 case OP_MUL_IMM:
3664 case OP_LMUL_IMM: {
3665 if (ins->dreg != ins->sreg1) {
3666 s390_lgr (code, ins->dreg, ins->sreg1);
3667 }
3668 if (s390_is_imm16 (ins->inst_imm)) {
3669 s390_lghi (code, s390_r13, ins->inst_imm);
3670 } else {
3671 s390_basr (code, s390_r13, 0);
3672 s390_j (code, 6);
3673 s390_llong(code, ins->inst_imm);
3674 s390_lg (code, s390_r13, 0, s390_r13, 4);
3675 }
3676 s390_msgr (code, ins->dreg, s390_r13);
3677 }
3678 break;
3679 case OP_LMUL_OVF: {
3680 short int *o[2];
3681 s390_ltgr (code, s390_r1, ins->sreg1);
3682 s390_jz (code, 0); CODEPTR(code, o[0]);
3683 s390_ltgr (code, s390_r0, ins->sreg2);
3684 s390_jnz (code, 6);
3685 s390_lghi (code, s390_r1, 0);
3686 s390_j (code, 0); CODEPTR(code, o[1]);
3687 s390_xgr (code, s390_r0, s390_r1);
3688 s390_msgr (code, s390_r1, ins->sreg2);
3689 s390_xgr (code, s390_r0, s390_r1);
3690 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3691 s390_ltgr (code, s390_r0, s390_r0);
3692 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3693 PTRSLOT (code, o[0]);
3694 PTRSLOT (code, o[1]);
3695 s390_lgr (code, ins->dreg, s390_r1);
3696 }
3697 break;
3698 case OP_LMUL_OVF_UN: {
3699 s390_lghi (code, s390_r0, 0);
3700 s390_lgr (code, s390_r1, ins->sreg1);
3701 s390_mlgr (code, s390_r0, ins->sreg2);
3702 s390_ltgr (code, s390_r0, s390_r0);
3703 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3704 s390_lgr (code, ins->dreg, s390_r1);
3705 }
3706 break;
3707 case OP_IADDCC: {
3708 g_assert_not_reached ();
3709 CHECK_SRCDST_COM_I;
3710 s390_algr (code, ins->dreg, src2);
3711 }
3712 break;
3713 case OP_IADD: {
3714 CHECK_SRCDST_COM_I;
3715 s390_agr (code, ins->dreg, src2);
3716 }
3717 break;
3718 case OP_IADC: {
3719 g_assert_not_reached ();
3720 CHECK_SRCDST_COM_I;
3721 s390_alcgr (code, ins->dreg, src2);
3722 }
3723 break;
3724 case OP_IADD_IMM: {
3725 if (ins->dreg != ins->sreg1) {
3726 s390_lgfr (code, ins->dreg, ins->sreg1);
3727 }
3728 if (s390_is_imm16 (ins->inst_imm)) {
3729 s390_aghi(code, ins->dreg, ins->inst_imm);
3730 } else {
3731 s390_basr (code, s390_r13, 0);
3732 s390_j (code, 4);
3733 s390_word (code, ins->inst_imm);
3734 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3735 }
3736 }
3737 break;
3738 case OP_IADC_IMM: {
3739 if (ins->dreg != ins->sreg1) {
3740 s390_lgfr (code, ins->dreg, ins->sreg1);
3741 }
3742 if (s390_is_imm16 (ins->inst_imm)) {
3743 s390_lghi (code, s390_r0, ins->inst_imm);
3744 s390_alcgr (code, ins->dreg, s390_r0);
3745 } else {
3746 s390_basr (code, s390_r13, 0);
3747 s390_j (code, 4);
3748 s390_word (code, ins->inst_imm);
3749 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3750 s390_alcgr (code, ins->dreg, s390_r13);
3751 }
3752 }
3753 break;
3754 case OP_LADD_OVF:
3755 case OP_S390_LADD_OVF: {
3756 CHECK_SRCDST_COM;
3757 s390_agr (code, ins->dreg, src2);
3758 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3759 }
3760 break;
3761 case OP_LADD_OVF_UN:
3762 case OP_S390_LADD_OVF_UN: {
3763 CHECK_SRCDST_COM;
3764 s390_algr (code, ins->dreg, src2);
3765 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3766 }
3767 break;
3768 case OP_ISUBCC: {
3769 CHECK_SRCDST_NCOM_I;
3770 s390_slgr (code, ins->dreg, src2);
3771 }
3772 break;
3773 case OP_ISUB: {
3774 CHECK_SRCDST_NCOM_I;
3775 s390_sgr (code, ins->dreg, src2);
3776 }
3777 break;
3778 case OP_ISBB: {
3779 CHECK_SRCDST_NCOM_I;
3780 s390_slbgr (code, ins->dreg, src2);
3781 }
3782 break;
3783 case OP_ISUB_IMM: {
3784 if (ins->dreg != ins->sreg1) {
3785 s390_lgfr (code, ins->dreg, ins->sreg1);
3786 }
3787 if (s390_is_imm16 (-ins->inst_imm)) {
3788 s390_aghi (code, ins->dreg, -ins->inst_imm);
3789 } else {
3790 s390_basr (code, s390_r13, 0);
3791 s390_j (code, 4);
3792 s390_word (code, ins->inst_imm);
3793 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3794 }
3795 }
3796 break;
3797 case OP_ISBB_IMM: {
3798 s390_basr (code, s390_r13, 0);
3799 s390_j (code, 4);
3800 s390_word (code, ins->inst_imm);
3801 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3802 }
3803 break;
3804 case OP_ISUB_OVF:
3805 case OP_S390_ISUB_OVF: {
3806 CHECK_SRCDST_NCOM;
3807 s390_sr (code, ins->dreg, src2);
3808 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3809 s390_lgfr (code, ins->dreg, ins->dreg);
3810 }
3811 break;
3812 case OP_ISUB_OVF_UN:
3813 case OP_S390_ISUB_OVF_UN: {
3814 CHECK_SRCDST_NCOM;
3815 s390_slr (code, ins->dreg, src2);
3816 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3817 s390_llgfr(code, ins->dreg, ins->dreg);
3818 }
3819 break;
3820 case OP_LSUB_OVF:
3821 case OP_S390_LSUB_OVF: {
3822 CHECK_SRCDST_NCOM;
3823 s390_sgr (code, ins->dreg, src2);
3824 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3825 }
3826 break;
3827 case OP_LSUB_OVF_UN:
3828 case OP_S390_LSUB_OVF_UN: {
3829 CHECK_SRCDST_NCOM;
3830 s390_slgr (code, ins->dreg, src2);
3831 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3832 }
3833 break;
3834 case OP_IAND: {
3835 CHECK_SRCDST_NCOM_I;
3836 s390_ngr (code, ins->dreg, src2);
3837 }
3838 break;
3839 case OP_IAND_IMM: {
3840 if (ins->dreg != ins->sreg1) {
3841 s390_lgfr (code, ins->dreg, ins->sreg1);
3842 }
3843 if (s390_is_imm16 (ins->inst_imm)) {
3844 s390_lghi (code, s390_r0, ins->inst_imm);
3845 s390_ngr (code, ins->dreg, s390_r0);
3846 } else {
3847 s390_basr (code, s390_r13, 0);
3848 s390_j (code, 6);
3849 s390_llong(code, ins->inst_imm);
3850 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3851 }
3852 }
3853 break;
3854 case OP_IDIV: {
3855 s390_lgfr (code, s390_r0, ins->sreg1);
3856 s390_srda (code, s390_r0, 0, 32);
3857 s390_dr (code, s390_r0, ins->sreg2);
3858 s390_lgfr (code, ins->dreg, s390_r1);
3859 }
3860 break;
3861 case OP_IDIV_UN: {
3862 s390_lgfr (code, s390_r0, ins->sreg1);
3863 s390_srdl (code, s390_r0, 0, 32);
3864 s390_dlr (code, s390_r0, ins->sreg2);
3865 s390_lgfr (code, ins->dreg, s390_r1);
3866 }
3867 break;
3868 case OP_IDIV_IMM: {
3869 if (s390_is_imm16 (ins->inst_imm)) {
3870 s390_lghi (code, s390_r13, ins->inst_imm);
3871 s390_lgfr (code, s390_r0, ins->sreg1);
3872 } else {
3873 s390_basr (code, s390_r13, 0);
3874 s390_j (code, 4);
3875 s390_word (code, ins->inst_imm);
3876 s390_lgfr (code, s390_r0, ins->sreg1);
3877 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3878 }
3879 s390_srda (code, s390_r0, 0, 32);
3880 s390_dr (code, s390_r0, ins->sreg2);
3881 s390_lgfr (code, ins->dreg, s390_r1);
3882 }
3883 break;
3884 case OP_IREM: {
3885 s390_lgfr (code, s390_r0, ins->sreg1);
3886 s390_srda (code, s390_r0, 0, 32);
3887 s390_dr (code, s390_r0, ins->sreg2);
3888 s390_lgfr (code, ins->dreg, s390_r0);
3889 break;
3890 case OP_IREM_UN:
3891 s390_lgfr (code, s390_r0, ins->sreg1);
3892 s390_srdl (code, s390_r0, 0, 32);
3893 s390_dlr (code, s390_r0, ins->sreg2);
3894 s390_lgfr (code, ins->dreg, s390_r0);
3895 }
3896 break;
3897 case OP_IREM_IMM: {
3898 if (s390_is_imm16 (ins->inst_imm)) {
3899 s390_lghi (code, s390_r13, ins->inst_imm);
3900 s390_lgfr (code, s390_r0, ins->sreg1);
3901 } else {
3902 s390_basr (code, s390_r13, 0);
3903 s390_j (code, 4);
3904 s390_word (code, ins->inst_imm);
3905 s390_lgfr (code, s390_r0, ins->sreg1);
3906 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3907 }
3908 s390_srda (code, s390_r0, 0, 32);
3909 s390_dr (code, s390_r0, ins->sreg2);
3910 s390_lgfr (code, ins->dreg, s390_r0);
3911 }
3912 break;
3913 case OP_IOR: {
3914 CHECK_SRCDST_COM_I;
3915 s390_ogr (code, ins->dreg, src2);
3916 }
3917 break;
3918 case OP_IOR_IMM: {
3919 if (ins->dreg != ins->sreg1) {
3920 s390_lgfr (code, ins->dreg, ins->sreg1);
3921 }
3922 if (s390_is_imm16 (ins->inst_imm)) {
3923 s390_lghi (code, s390_r0, ins->inst_imm);
3924 s390_ogr (code, ins->dreg, s390_r0);
3925 } else {
3926 s390_basr (code, s390_r13, 0);
3927 s390_j (code, 6);
3928 s390_llong(code, ins->inst_imm);
3929 s390_og (code, ins->dreg, 0, s390_r13, 4);
3930 }
3931 }
3932 break;
3933 case OP_IXOR: {
3934 CHECK_SRCDST_COM_I;
3935 s390_xgr (code, ins->dreg, src2);
3936 }
3937 break;
3938 case OP_IXOR_IMM: {
3939 if (ins->dreg != ins->sreg1) {
3940 s390_lgfr (code, ins->dreg, ins->sreg1);
3941 }
3942 if (s390_is_imm16 (ins->inst_imm)) {
3943 s390_lghi (code, s390_r0, ins->inst_imm);
3944 s390_xgr (code, ins->dreg, s390_r0);
3945 } else {
3946 s390_basr (code, s390_r13, 0);
3947 s390_j (code, 6);
3948 s390_llong(code, ins->inst_imm);
3949 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3950 }
3951 }
3952 break;
3953 case OP_ISHL: {
3954 CHECK_SRCDST_NCOM;
3955 s390_sll (code, ins->dreg, src2, 0);
3956 }
3957 break;
3958 case OP_ISHL_IMM: {
3959 if (ins->sreg1 != ins->dreg) {
3960 s390_lgfr (code, ins->dreg, ins->sreg1);
3961 }
3962 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3963 }
3964 break;
3965 case OP_ISHR: {
3966 CHECK_SRCDST_NCOM;
3967 s390_sra (code, ins->dreg, src2, 0);
3968 }
3969 break;
3970 case OP_ISHR_IMM: {
3971 if (ins->sreg1 != ins->dreg) {
3972 s390_lgfr (code, ins->dreg, ins->sreg1);
3973 }
3974 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3975 }
3976 break;
3977 case OP_ISHR_UN_IMM: {
3978 if (ins->sreg1 != ins->dreg) {
3979 s390_lgfr (code, ins->dreg, ins->sreg1);
3980 }
3981 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3982 }
3983 break;
3984 case OP_ISHR_UN: {
3985 CHECK_SRCDST_NCOM;
3986 s390_srl (code, ins->dreg, src2, 0);
3987 }
3988 break;
3989 case OP_INOT: {
3990 if (ins->sreg1 != ins->dreg) {
3991 s390_lgfr (code, ins->dreg, ins->sreg1);
3992 }
3993 s390_lghi (code, s390_r0, -1);
3994 s390_xgr (code, ins->dreg, s390_r0);
3995 }
3996 break;
3997 case OP_INEG: {
3998 s390_lcgr (code, ins->dreg, ins->sreg1);
3999 }
4000 break;
4001 case OP_IMUL: {
4002 CHECK_SRCDST_COM_I;
4003 s390_msr (code, ins->dreg, src2);
4004 }
4005 break;
4006 case OP_IMUL_IMM: {
4007 if (ins->dreg != ins->sreg1) {
4008 s390_lgfr (code, ins->dreg, ins->sreg1);
4009 }
4010 if (s390_is_imm16 (ins->inst_imm)) {
4011 s390_lghi (code, s390_r13, ins->inst_imm);
4012 } else {
4013 s390_basr (code, s390_r13, 0);
4014 s390_j (code, 4);
4015 s390_word (code, ins->inst_imm);
4016 s390_lgf (code, s390_r13, 0, s390_r13, 4);
4017 }
4018 s390_msr (code, ins->dreg, s390_r13);
4019 }
4020 break;
4021 case OP_IMUL_OVF: {
4022 short int *o[2];
4023 s390_ltr (code, s390_r1, ins->sreg1);
4024 s390_jz (code, 0); CODEPTR(code, o[0]);
4025 s390_ltr (code, s390_r0, ins->sreg2);
4026 s390_jnz (code, 6);
4027 s390_lhi (code, s390_r1, 0);
4028 s390_j (code, 0); CODEPTR(code, o[1]);
4029 s390_xr (code, s390_r0, s390_r1);
4030 s390_msr (code, s390_r1, ins->sreg2);
4031 s390_xr (code, s390_r0, s390_r1);
4032 s390_srl (code, s390_r0, 0, 31);
4033 s390_ltr (code, s390_r0, s390_r0);
4034 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
4035 PTRSLOT (code, o[0]);
4036 PTRSLOT (code, o[1]);
4037 s390_lgfr (code, ins->dreg, s390_r1);
4038 }
4039 break;
4040 case OP_IMUL_OVF_UN: {
4041 s390_lhi (code, s390_r0, 0);
4042 s390_lr (code, s390_r1, ins->sreg1);
4043 s390_mlr (code, s390_r0, ins->sreg2);
4044 s390_ltr (code, s390_r0, s390_r0);
4045 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
4046 s390_lgfr (code, ins->dreg, s390_r1);
4047 }
4048 break;
4049 case OP_ICONST:
4050 case OP_I8CONST: {
4051 if (s390_is_imm16(ins->inst_c0)) {
4052 s390_lghi (code, ins->dreg, ins->inst_c0);
4053 } else {
4054 s390_basr (code, s390_r13, 0);
4055 s390_j (code, 6);
4056 s390_llong(code, ins->inst_c0);
4057 s390_lg (code, ins->dreg, 0, s390_r13, 4);
4058 }
4059 }
4060 break;
4061 case OP_AOTCONST: {
4062 s390_basr (code, s390_r13, 0);
4063 s390_j (code, 6);
4064 mono_add_patch_info (cfg, code - cfg->native_code,
4065 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
4066 s390_llong(code, 0);
4067 s390_lg (code,ins->dreg, 0, s390_r13, 4);
4068 }
4069 break;
4070 case OP_JUMP_TABLE: {
4071 mono_add_patch_info (cfg, code - cfg->native_code,
4072 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
4073 s390_basr (code, s390_r13, 0);
4074 s390_j (code, 6);
4075 s390_llong (code, 0);
4076 s390_lg (code, ins->dreg, 0, s390_r13, 4);
4077 }
4078 break;
4079 case OP_MOVE:
4080 if (ins->dreg != ins->sreg1) {
4081 s390_lgr (code, ins->dreg, ins->sreg1);
4082 }
4083 break;
4084 case OP_LCONV_TO_I:
4085 case OP_LCONV_TO_I8:
4086 case OP_SEXT_I4:
4087 s390_lgfr (code, ins->dreg, ins->sreg1);
4088 break;
4089 case OP_LCONV_TO_I4:
4090 s390_lgfr (code, ins->dreg, ins->sreg1);
4091 break;
4092 case OP_LCONV_TO_U:
4093 case OP_LCONV_TO_U8:
4094 case OP_LCONV_TO_U4:
4095 case OP_ZEXT_I4:
4096 s390_llgfr (code, ins->dreg, ins->sreg1);
4097 break;
4098 case OP_LCONV_TO_OVF_U4:
4099 s390_basr (code, s390_r13, 0);
4100 s390_j (code, 6);
4101 s390_llong(code, 4294967295);
4102 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
4103 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
4104 s390_ltgr (code, ins->sreg1, ins->sreg1);
4105 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
4106 s390_llgfr(code, ins->dreg, ins->sreg1);
4107 break;
4108 case OP_LCONV_TO_OVF_I4_UN:
4109 s390_basr (code, s390_r13, 0);
4110 s390_j (code, 6);
4111 s390_llong(code, 2147483647);
4112 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
4113 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
4114 s390_ltgr (code, ins->sreg1, ins->sreg1);
4115 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
4116 s390_lgfr (code, ins->dreg, ins->sreg1);
4117 break;
4118 case OP_FMOVE:
4119 case OP_FCONV_TO_R4: {
4120 if (ins->dreg != ins->sreg1) {
4121 s390_ldr (code, ins->dreg, ins->sreg1);
4122 }
4123 }
4124 break;
4125 case OP_S390_SETF4RET: {
4126 s390_ledbr (code, ins->dreg, ins->sreg1);
4127 }
4128 break;
4129 case OP_TLS_GET: {
4130 if (s390_is_imm16 (ins->inst_offset)) {
4131 s390_lghi (code, s390_r13, ins->inst_offset);
4132 } else {
4133 s390_bras (code, s390_r13, 0);
4134 s390_j (code, 4);
4135 s390_llong(code, ins->inst_offset);
4136 s390_lg (code, s390_r13, 0, s390_r13, 4);
4137 }
4138 s390_ear (code, s390_r1, 0);
4139 s390_sllg(code, s390_r1, s390_r1, 0, 32);
4140 s390_ear (code, s390_r1, 1);
4141 s390_lg (code, ins->dreg, s390_r13, s390_r1, 0);
4142 }
4143 break;
4144 case OP_JMP: {
4145 if (cfg->method->save_lmf)
4146 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4147
4148 if (cfg->flags & MONO_CFG_HAS_TAIL) {
4149 code = emit_load_volatile_arguments (code, cfg);
4150 }
4151
4152 code = backUpStackPtr(cfg, code);
4153 s390_lg (code, s390_r14, 0, cfg->frame_reg, S390_RET_ADDR_OFFSET);
4154 mono_add_patch_info (cfg, code - cfg->native_code,
4155 MONO_PATCH_INFO_METHOD_JUMP,
4156 ins->inst_p0);
4157 s390_jcl (code, S390_CC_UN, 0);
4158 }
4159 break;
4160 case OP_CHECK_THIS: {
4161 /* ensure ins->sreg1 is not NULL */
4162 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
4163 s390_ltgr (code, s390_r0, s390_r0);
4164 }
4165 break;
4166 case OP_ARGLIST: {
4167 int offset = cfg->sig_cookie + cfg->stack_usage;
4168
4169 if (s390_is_imm16 (offset))
4170 s390_lghi (code, s390_r0, offset);
4171 else {
4172 s390_basr (code, s390_r13, 0);
4173 s390_j (code, 6);
4174 s390_llong(code, offset);
4175 s390_lg (code, s390_r0, 0, s390_r13, 0);
4176 }
4177 s390_agr (code, s390_r0, cfg->frame_reg);
4178 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
4179 }
4180 break;
4181 case OP_FCALL: {
4182 s390_basr (code, s390_r13, 0);
4183 s390_j (code, 6);
4184 call = (MonoCallInst*)ins;
4185 if (ins->flags & MONO_INST_HAS_METHOD)
4186 mono_add_patch_info (cfg, code-cfg->native_code,
4187 MONO_PATCH_INFO_METHOD,
4188 call->method);
4189 else
4190 mono_add_patch_info (cfg, code-cfg->native_code,
4191 MONO_PATCH_INFO_ABS,
4192 call->fptr);
4193 s390_llong(code, 0);
4194 s390_lg (code, s390_r14, 0, s390_r13, 4);
4195 s390_basr (code, s390_r14, s390_r14);
4196 if (call->signature->ret->type == MONO_TYPE_R4)
4197 s390_ldebr (code, s390_f0, s390_f0);
4198 }
4199 break;
4200 case OP_LCALL:
4201 case OP_VCALL:
4202 case OP_VCALL2:
4203 case OP_VOIDCALL:
4204 case OP_CALL: {
4205 s390_basr (code, s390_r13, 0);
4206 s390_j (code, 6);
4207 call = (MonoCallInst*)ins;
4208 if (ins->flags & MONO_INST_HAS_METHOD)
4209 mono_add_patch_info (cfg, code-cfg->native_code,
4210 MONO_PATCH_INFO_METHOD,
4211 call->method);
4212 else
4213 mono_add_patch_info (cfg, code-cfg->native_code,
4214 MONO_PATCH_INFO_ABS,
4215 call->fptr);
4216 s390_llong(code, 0);
4217 s390_lg (code, s390_r14, 0, s390_r13, 4);
4218 s390_basr (code, s390_r14, s390_r14);
4219 }
4220 break;
4221 case OP_FCALL_REG: {
4222 call = (MonoCallInst*)ins;
4223 s390_lgr (code, s390_r1, ins->sreg1);
4224 s390_basr (code, s390_r14, s390_r1);
4225 if (call->signature->ret->type == MONO_TYPE_R4)
4226 s390_ldebr (code, s390_f0, s390_f0);
4227 }
4228 break;
4229 case OP_LCALL_REG:
4230 case OP_VCALL_REG:
4231 case OP_VCALL2_REG:
4232 case OP_VOIDCALL_REG:
4233 case OP_CALL_REG: {
4234 s390_lgr (code, s390_r1, ins->sreg1);
4235 s390_basr (code, s390_r14, s390_r1);
4236 }
4237 break;
4238 case OP_FCALL_MEMBASE: {
4239 call = (MonoCallInst*)ins;
4240 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4241 s390_basr (code, s390_r14, s390_r1);
4242 if (call->signature->ret->type == MONO_TYPE_R4)
4243 s390_ldebr (code, s390_f0, s390_f0);
4244 }
4245 break;
4246 case OP_LCALL_MEMBASE:
4247 case OP_VCALL_MEMBASE:
4248 case OP_VCALL2_MEMBASE:
4249 case OP_VOIDCALL_MEMBASE:
4250 case OP_CALL_MEMBASE: {
4251 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4252 s390_basr (code, s390_r14, s390_r1);
4253 }
4254 break;
4255 case OP_LOCALLOC: {
4256 int alloca_skip;
4257 int area_offset;
4258
4259 if (cfg->param_area == 0)
4260 alloca_skip = S390_MINIMAL_STACK_SIZE;
4261 else
4262 alloca_skip = cfg->param_area;
4263
4264 area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
4265 s390_lgr (code, s390_r1, ins->sreg1);
4266 if (ins->flags & MONO_INST_INIT)
4267 s390_lgr (code, s390_r0, ins->sreg1);
4268 s390_aghi (code, s390_r1, 14);
4269 s390_srlg (code, s390_r1, s390_r1, 0, 3);
4270 s390_sllg (code, s390_r1, s390_r1, 0, 3);
4271 if (cfg->method->save_lmf) {
4272 /*----------------------------------*/
4273 /* we have to adjust lmf ebp value */
4274 /*----------------------------------*/
4275 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
4276
4277 s390_lgr (code, s390_r13, cfg->frame_reg);
4278 if (s390_is_imm16(lmfOffset))
4279 s390_aghi (code, s390_r13, lmfOffset);
4280 else {
4281 s390_basr (code, s390_r14, 0);
4282 s390_j (code, 4);
4283 s390_word (code, lmfOffset);
4284 s390_agf (code, s390_r13, 0, s390_r14, 4);
4285 }
4286 s390_lgr (code, s390_r14, STK_BASE);
4287 s390_sgr (code, s390_r14, s390_r1);
4288 s390_stg (code, s390_r14, 0, s390_r13,
4289 G_STRUCT_OFFSET(MonoLMF, ebp));
4290 }
4291 s390_lg (code, s390_r13, 0, STK_BASE, 0);
4292 s390_sgr (code, STK_BASE, s390_r1);
4293 s390_stg (code, s390_r13, 0, STK_BASE, 0);
4294 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
4295 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
4296 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
4297 if (ins->flags & MONO_INST_INIT) {
4298 s390_lgr (code, s390_r1, s390_r0);
4299 s390_lgr (code, s390_r0, ins->dreg);
4300 s390_lgr (code, s390_r14, s390_r12);
4301 s390_lghi (code, s390_r13, 0);
4302 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4303 s390_jo (code, -2);
4304 s390_lgr (code, s390_r12, s390_r14);
4305 }
4306 }
4307 break;
4308 case OP_THROW: {
4309 s390_lgr (code, s390_r2, ins->sreg1);
4310 s390_basr (code, s390_r13, 0);
4311 s390_j (code, 6);
4312 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4313 (gpointer) "mono_arch_throw_exception");
4314 s390_llong(code, 0);
4315 s390_lg (code, s390_r14, 0, s390_r13, 4);
4316 s390_basr (code, s390_r14, s390_r14);
4317 }
4318 break;
4319 case OP_RETHROW: {
4320 s390_lgr (code, s390_r2, ins->sreg1);
4321 s390_basr (code, s390_r13, 0);
4322 s390_j (code, 6);
4323 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4324 (gpointer) "mono_arch_rethrow_exception");
4325 s390_llong(code, 0);
4326 s390_lg (code, s390_r14, 0, s390_r13, 4);
4327 s390_basr (code, s390_r14, s390_r14);
4328 }
4329 break;
4330 case OP_START_HANDLER: {
4331 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4332
4333 S390_LONG (code, stg, stg, s390_r14, 0,
4334 spvar->inst_basereg,
4335 spvar->inst_offset);
4336 }
4337 break;
4338 case OP_ENDFILTER: {
4339 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4340
4341 if (ins->sreg1 != s390_r2)
4342 s390_lgr(code, s390_r2, ins->sreg1);
4343 S390_LONG (code, lg, lg, s390_r14, 0,
4344 spvar->inst_basereg,
4345 spvar->inst_offset);
4346 s390_br (code, s390_r14);
4347 }
4348 break;
4349 case OP_ENDFINALLY: {
4350 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4351
4352 S390_LONG (code, lg, lg, s390_r14, 0,
4353 spvar->inst_basereg,
4354 spvar->inst_offset);
4355 s390_br (code, s390_r14);
4356 }
4357 break;
4358 case OP_CALL_HANDLER: {
4359 mono_add_patch_info (cfg, code-cfg->native_code,
4360 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4361 s390_brasl (code, s390_r14, 0);
4362 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
4363 }
4364 break;
4365 case OP_LABEL: {
4366 ins->inst_c0 = code - cfg->native_code;
4367 }
4368 break;
4369 case OP_RELAXED_NOP:
4370 case OP_NOP:
4371 case OP_DUMMY_USE:
4372 case OP_DUMMY_STORE:
4373 case OP_NOT_REACHED:
4374 case OP_NOT_NULL: {
4375 }
4376 break;
4377 case OP_SEQ_POINT: {
4378 int i;
4379
4380 if (cfg->compile_aot)
4381 NOT_IMPLEMENTED;
4382
4383 /*
4384 * Read from the single stepping trigger page. This will cause a
4385 * SIGSEGV when single stepping is enabled.
4386 * We do this _before_ the breakpoint, so single stepping after
4387 * a breakpoint is hit will step to the next IL offset.
4388 */
4389 if (ins->flags & MONO_INST_SINGLE_STEP_LOC) {
4390 breakpointCode.pTrigger = ss_trigger_page;
4391 memcpy(code, (void *) &breakpointCode, BREAKPOINT_SIZE);
4392 code += BREAKPOINT_SIZE;
4393 }
4394
4395 mono_add_seq_point (cfg, bb, ins, code - cfg->native_code);
4396
4397 /*
4398 * A placeholder for a possible breakpoint inserted by
4399 * mono_arch_set_breakpoint ().
4400 */
4401 for (i = 0; i < (BREAKPOINT_SIZE / S390X_NOP_SIZE); ++i)
4402 s390_nop (code);
4403 break;
4404 }
4405
4406 case OP_BR:
4407 EMIT_UNCOND_BRANCH(ins);
4408 break;
4409 case OP_BR_REG: {
4410 s390_br (code, ins->sreg1);
4411 }
4412 break;
4413 case OP_CEQ:
4414 case OP_ICEQ:
4415 case OP_LCEQ: {
4416 s390_lghi(code, ins->dreg, 1);
4417 s390_jz (code, 4);
4418 s390_lghi(code, ins->dreg, 0);
4419 }
4420 break;
4421 case OP_CLT:
4422 case OP_ICLT:
4423 case OP_LCLT: {
4424 s390_lghi(code, ins->dreg, 1);
4425 s390_jl (code, 4);
4426 s390_lghi(code, ins->dreg, 0);
4427 }
4428 break;
4429 case OP_CLT_UN:
4430 case OP_ICLT_UN:
4431 case OP_LCLT_UN: {
4432 s390_lghi(code, ins->dreg, 1);
4433 s390_jlo (code, 4);
4434 s390_lghi(code, ins->dreg, 0);
4435 }
4436 break;
4437 case OP_CGT:
4438 case OP_ICGT:
4439 case OP_LCGT: {
4440 s390_lghi(code, ins->dreg, 1);
4441 s390_jh (code, 4);
4442 s390_lghi(code, ins->dreg, 0);
4443 }
4444 break;
4445 case OP_CGT_UN:
4446 case OP_ICGT_UN:
4447 case OP_LCGT_UN: {
4448 s390_lghi(code, ins->dreg, 1);
4449 s390_jho (code, 4);
4450 s390_lghi(code, ins->dreg, 0);
4451 }
4452 break;
4453 case OP_COND_EXC_EQ:
4454 case OP_COND_EXC_IEQ:
4455 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4456 break;
4457 case OP_COND_EXC_NE_UN:
4458 case OP_COND_EXC_INE_UN:
4459 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4460 break;
4461 case OP_COND_EXC_LT:
4462 case OP_COND_EXC_ILT:
4463 case OP_COND_EXC_LT_UN:
4464 case OP_COND_EXC_ILT_UN:
4465 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4466 break;
4467 case OP_COND_EXC_GT:
4468 case OP_COND_EXC_IGT:
4469 case OP_COND_EXC_GT_UN:
4470 case OP_COND_EXC_IGT_UN:
4471 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4472 break;
4473 case OP_COND_EXC_GE:
4474 case OP_COND_EXC_IGE:
4475 case OP_COND_EXC_GE_UN:
4476 case OP_COND_EXC_IGE_UN:
4477 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4478 break;
4479 case OP_COND_EXC_LE:
4480 case OP_COND_EXC_ILE:
4481 case OP_COND_EXC_LE_UN:
4482 case OP_COND_EXC_ILE_UN:
4483 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4484 break;
4485 case OP_COND_EXC_OV:
4486 case OP_COND_EXC_IOV:
4487 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4488 break;
4489 case OP_COND_EXC_NO:
4490 case OP_COND_EXC_INO:
4491 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4492 break;
4493 case OP_COND_EXC_C:
4494 case OP_COND_EXC_IC:
4495 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4496 break;
4497 case OP_COND_EXC_NC:
4498 case OP_COND_EXC_INC:
4499 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4500 break;
4501 case OP_LBEQ:
4502 case OP_IBEQ:
4503 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4504 break;
4505 case OP_LBNE_UN:
4506 case OP_IBNE_UN:
4507 EMIT_COND_BRANCH (ins, S390_CC_NE);
4508 break;
4509 case OP_LBLT:
4510 case OP_LBLT_UN:
4511 case OP_IBLT:
4512 case OP_IBLT_UN:
4513 EMIT_COND_BRANCH (ins, S390_CC_LT);
4514 break;
4515 case OP_LBGT:
4516 case OP_LBGT_UN:
4517 case OP_IBGT:
4518 case OP_IBGT_UN:
4519 EMIT_COND_BRANCH (ins, S390_CC_GT);
4520 break;
4521 case OP_LBGE:
4522 case OP_LBGE_UN:
4523 case OP_IBGE:
4524 case OP_IBGE_UN:
4525 EMIT_COND_BRANCH (ins, S390_CC_GE);
4526 break;
4527 case OP_LBLE:
4528 case OP_LBLE_UN:
4529 case OP_IBLE:
4530 case OP_IBLE_UN:
4531 EMIT_COND_BRANCH (ins, S390_CC_LE);
4532 break;
4533
4534 /* floating point opcodes */
4535 case OP_R8CONST: {
4536 if (*((double *) ins->inst_p0) == 0) {
4537 s390_lzdr (code, ins->dreg);
4538 } else {
4539 s390_basr (code, s390_r13, 0);
4540 s390_j (code, 6);
4541 s390_llong (code, ins->inst_p0);
4542 s390_lg (code, s390_r13, 0, s390_r13, 4);
4543 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4544 }
4545 }
4546 break;
4547 case OP_R4CONST: {
4548 if (*((float *) ins->inst_p0) == 0) {
4549 s390_lzdr (code, ins->dreg);
4550 } else {
4551 s390_basr (code, s390_r13, 0);
4552 s390_j (code, 6);
4553 s390_llong(code, ins->inst_p0);
4554 s390_lg (code, s390_r13, 0, s390_r13, 4);
4555 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4556 }
4557 }
4558 break;
4559 case OP_STORER8_MEMBASE_REG: {
4560 S390_LONG (code, stdy, std, ins->sreg1, 0,
4561 ins->inst_destbasereg, ins->inst_offset);
4562 }
4563 break;
4564 case OP_LOADR8_MEMBASE: {
4565 S390_LONG (code, ldy, ld, ins->dreg, 0,
4566 ins->inst_basereg, ins->inst_offset);
4567 }
4568 break;
4569 case OP_STORER4_MEMBASE_REG: {
4570 s390_ledbr (code, s390_f15, ins->sreg1);
4571 S390_LONG (code, stey, ste, s390_f15, 0,
4572 ins->inst_destbasereg, ins->inst_offset);
4573 }
4574 break;
4575 case OP_LOADR4_MEMBASE: {
4576 S390_LONG (code, ldy, ld, s390_f15, 0,
4577 ins->inst_basereg, ins->inst_offset);
4578 s390_ldebr (code, ins->dreg, s390_f15);
4579 }
4580 break;
4581 case OP_ICONV_TO_R_UN: {
4582 s390_cdfbr (code, ins->dreg, ins->sreg1);
4583 s390_ltr (code, ins->sreg1, ins->sreg1);
4584 s390_jnl (code, 12);
4585 s390_basr (code, s390_r13, 0);
4586 s390_j (code, 6);
4587 s390_word (code, 0x41f00000);
4588 s390_word (code, 0);
4589 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4590 }
4591 break;
4592 case OP_LCONV_TO_R_UN: {
4593 s390_cdgbr (code, ins->dreg, ins->sreg1);
4594 s390_ltgr (code, ins->sreg1, ins->sreg1);
4595 s390_jnl (code, 12);
4596 s390_basr (code, s390_r13, 0);
4597 s390_j (code, 6);
4598 s390_word (code, 0x41f00000);
4599 s390_word (code, 0);
4600 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4601 }
4602 break;
4603 case OP_LCONV_TO_R4:
4604 case OP_ICONV_TO_R4: {
4605 s390_cdgbr (code, ins->dreg, ins->sreg1);
4606 }
4607 break;
4608 case OP_LCONV_TO_R8:
4609 case OP_ICONV_TO_R8: {
4610 s390_cdgbr (code, ins->dreg, ins->sreg1);
4611 }
4612 break;
4613 case OP_FCONV_TO_I1:
4614 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4615 break;
4616 case OP_FCONV_TO_U1:
4617 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4618 break;
4619 case OP_FCONV_TO_I2:
4620 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4621 break;
4622 case OP_FCONV_TO_U2:
4623 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4624 break;
4625 case OP_FCONV_TO_I4:
4626 case OP_FCONV_TO_I:
4627 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4628 break;
4629 case OP_FCONV_TO_U4:
4630 case OP_FCONV_TO_U:
4631 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4632 break;
4633 case OP_FCONV_TO_I8:
4634 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
4635 break;
4636 case OP_LCONV_TO_OVF_I: {
4637 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4638 short int *o[5];
4639 s390_ltgr (code, ins->sreg2, ins->sreg2);
4640 s390_jnl (code, 0); CODEPTR(code, o[0]);
4641 s390_ltgr (code, ins->sreg1, ins->sreg1);
4642 s390_jnl (code, 0); CODEPTR(code, o[1]);
4643 s390_lhi (code, s390_r13, -1);
4644 s390_cgr (code, ins->sreg1, s390_r13);
4645 s390_jnz (code, 0); CODEPTR(code, o[2]);
4646 if (ins->dreg != ins->sreg2)
4647 s390_lgr (code, ins->dreg, ins->sreg2);
4648 s390_j (code, 0); CODEPTR(code, o[3]);
4649 PTRSLOT(code, o[0]);
4650 s390_jz (code, 0); CODEPTR(code, o[4]);
4651 PTRSLOT(code, o[1]);
4652 PTRSLOT(code, o[2]);
4653 mono_add_patch_info (cfg, code - cfg->native_code,
4654 MONO_PATCH_INFO_EXC, "OverflowException");
4655 s390_brasl (code, s390_r14, 0);
4656 PTRSLOT(code, o[3]);
4657 PTRSLOT(code, o[4]);
4658 }
4659 break;
4660 case OP_ABS: {
4661 s390_lpdbr (code, ins->dreg, ins->sreg1);
4662 }
4663 break;
4664 case OP_SQRT: {
4665 s390_sqdbr (code, ins->dreg, ins->sreg1);
4666 }
4667 break;
4668 case OP_FADD: {
4669 CHECK_SRCDST_COM_F;
4670 s390_adbr (code, ins->dreg, src2);
4671 }
4672 break;
4673 case OP_FSUB: {
4674 CHECK_SRCDST_NCOM_F;
4675 s390_sdbr (code, ins->dreg, src2);
4676 }
4677 break;
4678 case OP_FMUL: {
4679 CHECK_SRCDST_COM_F;
4680 s390_mdbr (code, ins->dreg, src2);
4681 }
4682 break;
4683 case OP_FDIV: {
4684 CHECK_SRCDST_NCOM_F;
4685 s390_ddbr (code, ins->dreg, src2);
4686 }
4687 break;
4688 case OP_FNEG: {
4689 s390_lcdbr (code, ins->dreg, ins->sreg1);
4690 }
4691 break;
4692 case OP_FREM: {
4693 CHECK_SRCDST_NCOM_F;
4694 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4695 }
4696 break;
4697 case OP_FCOMPARE: {
4698 s390_cdbr (code, ins->sreg1, ins->sreg2);
4699 }
4700 break;
4701 case OP_FCEQ: {
4702 s390_cdbr (code, ins->sreg1, ins->sreg2);
4703 s390_lghi (code, ins->dreg, 1);
4704 s390_je (code, 4);
4705 s390_lghi (code, ins->dreg, 0);
4706 }
4707 break;
4708 case OP_FCLT: {
4709 s390_cdbr (code, ins->sreg1, ins->sreg2);
4710 s390_lghi (code, ins->dreg, 1);
4711 s390_jl (code, 4);
4712 s390_lghi (code, ins->dreg, 0);
4713 }
4714 break;
4715 case OP_FCLT_UN: {
4716 s390_cdbr (code, ins->sreg1, ins->sreg2);
4717 s390_lghi (code, ins->dreg, 1);
4718 s390_jlo (code, 4);
4719 s390_lghi (code, ins->dreg, 0);
4720 }
4721 break;
4722 case OP_FCGT: {
4723 s390_cdbr (code, ins->sreg1, ins->sreg2);
4724 s390_lghi (code, ins->dreg, 1);
4725 s390_jh (code, 4);
4726 s390_lghi (code, ins->dreg, 0);
4727 }
4728 break;
4729 case OP_FCGT_UN: {
4730 s390_cdbr (code, ins->sreg1, ins->sreg2);
4731 s390_lghi (code, ins->dreg, 1);
4732 s390_jho (code, 4);
4733 s390_lghi (code, ins->dreg, 0);
4734 }
4735 break;
4736 case OP_FBEQ: {
4737 short *o;
4738 s390_jo (code, 0); CODEPTR(code, o);
4739 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4740 PTRSLOT (code, o);
4741 }
4742 break;
4743 case OP_FBNE_UN:
4744 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4745 break;
4746 case OP_FBLT: {
4747 short *o;
4748 s390_jo (code, 0); CODEPTR(code, o);
4749 EMIT_COND_BRANCH (ins, S390_CC_LT);
4750 PTRSLOT (code, o);
4751 }
4752 break;
4753 case OP_FBLT_UN:
4754 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4755 break;
4756 case OP_FBGT: {
4757 short *o;
4758 s390_jo (code, 0); CODEPTR(code, o);
4759 EMIT_COND_BRANCH (ins, S390_CC_GT);
4760 PTRSLOT (code, o);
4761 }
4762 break;
4763 case OP_FBGT_UN:
4764 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4765 break;
4766 case OP_FBGE: {
4767 short *o;
4768 s390_jo (code, 0); CODEPTR(code, o);
4769 EMIT_COND_BRANCH (ins, S390_CC_GE);
4770 PTRSLOT (code, o);
4771 }
4772 break;
4773 case OP_FBGE_UN:
4774 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4775 break;
4776 case OP_FBLE: {
4777 short *o;
4778 s390_jo (code, 0); CODEPTR(code, o);
4779 EMIT_COND_BRANCH (ins, S390_CC_LE);
4780 PTRSLOT (code, o);
4781 }
4782 break;
4783 case OP_FBLE_UN:
4784 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4785 break;
4786 case OP_CKFINITE: {
4787 short *o;
4788 s390_lhi (code, s390_r13, 0x7f);
4789 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4790 s390_jz (code, 0); CODEPTR(code, o);
4791 mono_add_patch_info (cfg, code - cfg->native_code,
4792 MONO_PATCH_INFO_EXC, "ArithmeticException");
4793 s390_brasl (code, s390_r14,0);
4794 PTRSLOT(code, o);
4795 }
4796 break;
4797 case OP_S390_MOVE: {
4798 if (ins->backend.size > 0) {
4799 if (ins->backend.size <= 256) {
4800 s390_mvc (code, ins->backend.size, ins->dreg,
4801 ins->inst_offset, ins->sreg1, ins->inst_imm);
4802 } else {
4803 s390_lgr (code, s390_r0, ins->dreg);
4804 if (ins->inst_offset > 0) {
4805 if (s390_is_imm16 (ins->inst_offset)) {
4806 s390_aghi (code, s390_r0, ins->inst_offset);
4807 } else {
4808 s390_basr (code, s390_r13, 0);
4809 s390_j (code, 6);
4810 s390_llong(code, ins->inst_offset);
4811 s390_ag (code, s390_r0, 0, s390_r13, 4);
4812 }
4813 }
4814 s390_lgr (code, s390_r12, ins->sreg1);
4815 if (ins->inst_imm > 0) {
4816 if (s390_is_imm16 (ins->inst_imm)) {
4817 s390_aghi (code, s390_r12, ins->inst_imm);
4818 } else {
4819 s390_basr (code, s390_r13, 0);
4820 s390_j (code, 6);
4821 s390_llong(code, ins->inst_imm);
4822 s390_ag (code, s390_r12, 0, s390_r13, 4);
4823 }
4824 }
4825 if (s390_is_imm16 (ins->backend.size)) {
4826 s390_lghi (code, s390_r1, ins->backend.size);
4827 } else {
4828 s390_basr (code, s390_r13, 0);
4829 s390_j (code, 6);
4830 s390_llong(code, ins->backend.size);
4831 s390_lg (code, s390_r1, 0, s390_r13, 4);
4832 }
4833 s390_lgr (code, s390_r13, s390_r1);
4834 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4835 s390_jo (code, -2);
4836 }
4837 }
4838 }
4839 break;
4840 case OP_ATOMIC_ADD_I8: {
4841 s390_lgr (code, s390_r1, ins->sreg2);
4842 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4843 s390_agr (code, s390_r1, s390_r0);
4844 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4845 s390_jnz (code, -10);
4846 s390_lgr (code, ins->dreg, s390_r1);
4847 }
4848 break;
4849 case OP_ATOMIC_ADD_NEW_I8: {
4850 s390_lgr (code, s390_r1, ins->sreg2);
4851 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4852 s390_agr (code, s390_r1, s390_r0);
4853 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4854 s390_jnz (code, -10);
4855 s390_lgr (code, ins->dreg, s390_r1);
4856 }
4857 break;
4858 case OP_ATOMIC_EXCHANGE_I8: {
4859 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4860 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4861 s390_jnz (code, -6);
4862 s390_lgr (code, ins->dreg, s390_r0);
4863 }
4864 break;
4865 case OP_ATOMIC_ADD_I4: {
4866 s390_lgfr(code, s390_r1, ins->sreg2);
4867 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4868 s390_agr (code, s390_r1, s390_r0);
4869 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4870 s390_jnz (code, -9);
4871 s390_lgfr(code, ins->dreg, s390_r1);
4872 }
4873 break;
4874 case OP_ATOMIC_ADD_NEW_I4: {
4875 s390_lgfr(code, s390_r1, ins->sreg2);
4876 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4877 s390_agr (code, s390_r1, s390_r0);
4878 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4879 s390_jnz (code, -9);
4880 s390_lgfr(code, ins->dreg, s390_r1);
4881 }
4882 break;
4883 case OP_ATOMIC_EXCHANGE_I4: {
4884 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4885 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4886 s390_jnz (code, -4);
4887 s390_lgfr(code, ins->dreg, s390_r0);
4888 }
4889 break;
4890 case OP_S390_BKCHAIN: {
4891 s390_lgr (code, ins->dreg, ins->sreg1);
4892 if (s390_is_imm16 (cfg->stack_offset)) {
4893 s390_aghi (code, ins->dreg, cfg->stack_offset);
4894 } else {
4895 s390_basr (code, s390_r13, 0);
4896 s390_j (code, 6);
4897 s390_llong(code, cfg->stack_offset);
4898 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4899 }
4900 }
4901 break;
4902 case OP_MEMORY_BARRIER: {
4903 }
4904 break;
4905 case OP_GC_LIVENESS_DEF:
4906 case OP_GC_LIVENESS_USE:
4907 case OP_GC_PARAM_SLOT_LIVENESS_DEF:
4908 ins->backend.pc_offset = code - cfg->native_code;
4909 break;
4910 case OP_GC_SPILL_SLOT_LIVENESS_DEF:
4911 ins->backend.pc_offset = code - cfg->native_code;
4912 bb->spill_slot_defs = g_slist_prepend_mempool (cfg->mempool, bb->spill_slot_defs, ins);
4913 break;
4914 default:
4915 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4916 g_assert_not_reached ();
4917 }
4918
4919 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4920 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4921 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4922 g_assert_not_reached ();
4923 }
4924
4925 cpos += max_len;
4926
4927 last_offset = offset;
4928 }
4929
4930 cfg->code_len = code - cfg->native_code;
4931 }
4932
4933 /*========================= End of Function ========================*/
4934
4935 /*------------------------------------------------------------------*/
4936 /* */
4937 /* Name - mono_arch_register_lowlevel_calls */
4938 /* */
4939 /* Function - Register routines to help with --trace operation. */
4940 /* */
4941 /*------------------------------------------------------------------*/
4942
4943 void
4944 mono_arch_register_lowlevel_calls (void)
4945 {
4946 }
4947
4948 /*========================= End of Function ========================*/
4949
4950 /*------------------------------------------------------------------*/
4951 /* */
4952 /* Name - mono_arch_patch_code */
4953 /* */
4954 /* Function - Process the patch data created during the */
4955 /* instruction build process. This resolves jumps, */
4956 /* calls, variables etc. */
4957 /* */
4958 /*------------------------------------------------------------------*/
4959
4960 void
4961 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4962 guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
4963 {
4964 MonoJumpInfo *patch_info;
4965
4966 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4967 unsigned char *ip = patch_info->ip.i + code;
4968 gconstpointer target = NULL;
4969
4970 target = mono_resolve_patch_target (method, domain, code,
4971 patch_info, run_cctors);
4972
4973 switch (patch_info->type) {
4974 case MONO_PATCH_INFO_IP:
4975 case MONO_PATCH_INFO_EXC_NAME:
4976 case MONO_PATCH_INFO_LDSTR:
4977 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4978 case MONO_PATCH_INFO_LDTOKEN:
4979 case MONO_PATCH_INFO_EXC:
4980 case MONO_PATCH_INFO_ABS:
4981 case MONO_PATCH_INFO_METHOD:
4982 case MONO_PATCH_INFO_INTERNAL_METHOD:
4983 case MONO_PATCH_INFO_CLASS_INIT:
4984 s390_patch_addr (ip, (guint64) target);
4985 continue;
4986 case MONO_PATCH_INFO_SWITCH:
4987 /*----------------------------------*/
4988 /* ip points at the basr r13,0/j +4 */
4989 /* instruction the vtable value */
4990 /* follows this (i.e. ip+6) */
4991 /*----------------------------------*/
4992 *((gconstpointer *)(ip+6)) = target;
4993 continue;
4994 case MONO_PATCH_INFO_METHODCONST:
4995 case MONO_PATCH_INFO_CLASS:
4996 case MONO_PATCH_INFO_IMAGE:
4997 case MONO_PATCH_INFO_FIELD:
4998 case MONO_PATCH_INFO_IID:
4999 target = S390_RELATIVE(target, ip);
5000 s390_patch_rel (ip, (guint64) target);
5001 continue;
5002 case MONO_PATCH_INFO_R4:
5003 case MONO_PATCH_INFO_R8:
5004 case MONO_PATCH_INFO_METHOD_REL:
5005 g_assert_not_reached ();
5006 continue;
5007 default:
5008 target = S390_RELATIVE(target, ip);
5009 ip += 2;
5010 s390_patch_rel (ip, (guint64) target);
5011 }
5012 }
5013 }
5014
5015 /*========================= End of Function ========================*/
5016
5017 /*------------------------------------------------------------------*/
5018 /* */
5019 /* Name - emit_load_volatile_arguments */
5020 /* */
5021 /* Function - Emit the instructions to reload parameter regist- */
5022 /* registers for use with "tail" operations. */
5023 /* */
5024 /* The register loading operations performed here */
5025 /* are the mirror of the store operations performed */
5026 /* in mono_arch_emit_prolog and need to be kept in */
5027 /* synchronization with it. */
5028 /* */
5029 /*------------------------------------------------------------------*/
5030
5031 guint8 *
5032 emit_load_volatile_arguments (guint8 *code, MonoCompile *cfg)
5033 {
5034 MonoInst *inst;
5035 MonoMethod *method = cfg->method;
5036 MonoMethodSignature *sig = mono_method_signature(method);
5037 int pos = 0, i;
5038 CallInfo *cinfo;
5039
5040 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
5041
5042 if (cinfo->struct_ret) {
5043 ArgInfo *ainfo = &cinfo->ret;
5044 inst = cfg->vret_addr;
5045 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5046 }
5047
5048 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5049 ArgInfo *ainfo = cinfo->args + i;
5050 inst = cfg->args [pos];
5051
5052 if (inst->opcode == OP_REGVAR) {
5053 if (ainfo->regtype == RegTypeGeneral)
5054 s390_lgr (code, ainfo->reg, inst->dreg);
5055 else if (ainfo->regtype == RegTypeFP) {
5056 if (inst->dreg != ainfo->reg) {
5057 if (ainfo->size == 4) {
5058 s390_ldebr (code, ainfo->reg, inst->dreg);
5059 } else {
5060 s390_ldr (code, ainfo->reg, inst->dreg);
5061 }
5062 }
5063 }
5064 else if (ainfo->regtype == RegTypeBase) {
5065 } else
5066 g_assert_not_reached ();
5067 } else {
5068 if (ainfo->regtype == RegTypeGeneral) {
5069 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
5070 g_assert_not_reached();
5071 switch (ainfo->size) {
5072 case 1:
5073 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5074 break;
5075 case 2:
5076 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5077 break;
5078 case 4:
5079 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5080 break;
5081 case 8:
5082 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5083 break;
5084 }
5085 } else if (ainfo->regtype == RegTypeBase) {
5086 } else if (ainfo->regtype == RegTypeFP) {
5087 if (ainfo->size == 8)
5088 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5089 else if (ainfo->size == 4)
5090 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5091 else
5092 g_assert_not_reached ();
5093 } else if (ainfo->regtype == RegTypeStructByVal) {
5094 if (ainfo->reg != STK_BASE) {
5095 switch (ainfo->size) {
5096 case 1:
5097 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5098 break;
5099 case 2:
5100 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5101 break;
5102 case 4:
5103 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5104 break;
5105 case 8:
5106 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5107 break;
5108 }
5109 }
5110 } else if (ainfo->regtype == RegTypeStructByAddr) {
5111 if (ainfo->reg != STK_BASE) {
5112 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5113 }
5114 } else
5115 g_assert_not_reached ();
5116 }
5117 pos++;
5118 }
5119
5120 return code;
5121 }
5122
5123 /*========================= End of Function ========================*/
5124
5125 /*------------------------------------------------------------------*/
5126 /* */
5127 /* Name - mono_arch_emit_prolog */
5128 /* */
5129 /* Function - Create the instruction sequence for a function */
5130 /* prolog. */
5131 /* */
5132 /*------------------------------------------------------------------*/
5133
5134 guint8 *
5135 mono_arch_emit_prolog (MonoCompile *cfg)
5136 {
5137 MonoMethod *method = cfg->method;
5138 MonoBasicBlock *bb;
5139 MonoMethodSignature *sig;
5140 MonoInst *inst;
5141 long alloc_size, pos, max_offset, i, cfa_offset = 0;
5142 guint8 *code;
5143 guint32 size;
5144 CallInfo *cinfo;
5145 int tracing = 0;
5146 int lmfOffset;
5147
5148 cfg->code_size = 512;
5149
5150 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5151 tracing = 1;
5152 cfg->code_size += 256;
5153 }
5154
5155 if (method->save_lmf)
5156 cfg->code_size += 200;
5157
5158 cfg->native_code = code = g_malloc (cfg->code_size);
5159
5160 mono_emit_unwind_op_def_cfa (cfg, code, STK_BASE, 0);
5161 emit_unwind_regs(cfg, code, s390_r6, s390_r14, S390_REG_SAVE_OFFSET);
5162 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5163 mono_emit_unwind_op_offset (cfg, code, s390_r14, S390_RET_ADDR_OFFSET);
5164
5165 if (cfg->arch.bkchain_reg != -1)
5166 s390_lgr (code, cfg->arch.bkchain_reg, STK_BASE);
5167
5168 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
5169 cfg->used_int_regs |= 1 << 11;
5170 }
5171
5172 alloc_size = cfg->stack_offset;
5173
5174 cfg->stack_usage = cfa_offset = alloc_size;
5175 mono_emit_unwind_op_def_cfa_offset (cfg, code, alloc_size);
5176 s390_lgr (code, s390_r11, STK_BASE);
5177 if (s390_is_imm16 (alloc_size)) {
5178 s390_aghi (code, STK_BASE, -alloc_size);
5179 } else {
5180 int stackSize = alloc_size;
5181 while (stackSize > 32767) {
5182 s390_aghi (code, STK_BASE, -32767);
5183 stackSize -= 32767;
5184 }
5185 s390_aghi (code, STK_BASE, -stackSize);
5186 }
5187 s390_stg (code, s390_r11, 0, STK_BASE, 0);
5188
5189 if (cfg->frame_reg != STK_BASE)
5190 s390_lgr (code, s390_r11, STK_BASE);
5191
5192 mono_emit_unwind_op_def_cfa_reg (cfg, code, cfg->frame_reg);
5193
5194 /* compute max_offset in order to use short forward jumps
5195 * we always do it on s390 because the immediate displacement
5196 * for jumps is too small
5197 */
5198 max_offset = 0;
5199 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5200 MonoInst *ins;
5201 bb->max_offset = max_offset;
5202
5203 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
5204 max_offset += 6;
5205
5206 MONO_BB_FOR_EACH_INS (bb, ins)
5207 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
5208 }
5209
5210 /* load arguments allocated to register from the stack */
5211 sig = mono_method_signature (method);
5212 pos = 0;
5213
5214 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
5215
5216 if (cinfo->struct_ret) {
5217 ArgInfo *ainfo = &cinfo->ret;
5218 inst = cfg->vret_addr;
5219 inst->backend.size = ainfo->vtsize;
5220 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5221 }
5222
5223 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5224 ArgInfo *ainfo = cinfo->args + i;
5225 inst = cfg->args [pos];
5226
5227 if (inst->opcode == OP_VTARG_ADDR)
5228 inst = inst->inst_left;
5229
5230 if (inst->opcode == OP_REGVAR) {
5231 if (ainfo->regtype == RegTypeGeneral)
5232 s390_lgr (code, inst->dreg, ainfo->reg);
5233 else if (ainfo->regtype == RegTypeFP) {
5234 if (inst->dreg != ainfo->reg) {
5235 if (ainfo->size == 4) {
5236 s390_ledbr (code, inst->dreg, ainfo->reg);
5237 } else {
5238 s390_ldr (code, inst->dreg, ainfo->reg);
5239 }
5240 }
5241 }
5242 else if (ainfo->regtype == RegTypeBase) {
5243 s390_lgr (code, s390_r13, STK_BASE);
5244 s390_aghi (code, s390_r13, alloc_size);
5245 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
5246 } else
5247 g_assert_not_reached ();
5248
5249 if (cfg->verbose_level > 2)
5250 g_print ("Argument %d assigned to register %s\n",
5251 pos, mono_arch_regname (inst->dreg));
5252 } else {
5253 if (ainfo->regtype == RegTypeGeneral) {
5254 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
5255 g_assert_not_reached();
5256 switch (ainfo->size) {
5257 case 1:
5258 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5259 break;
5260 case 2:
5261 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5262 break;
5263 case 4:
5264 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5265 break;
5266 case 8:
5267 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5268 break;
5269 }
5270 } else if (ainfo->regtype == RegTypeBase) {
5271 } else if (ainfo->regtype == RegTypeFP) {
5272 if (ainfo->size == 8)
5273 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5274 else if (ainfo->size == 4)
5275 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5276 else
5277 g_assert_not_reached ();
5278 } else if (ainfo->regtype == RegTypeStructByVal) {
5279 int doffset = inst->inst_offset;
5280 int reg;
5281 if (ainfo->reg != STK_BASE)
5282 reg = ainfo->reg;
5283 else {
5284 reg = s390_r0;
5285 s390_lgr (code, s390_r13, STK_BASE);
5286 s390_aghi (code, s390_r13, alloc_size);
5287 }
5288
5289 size = (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE
5290 ? mono_class_native_size(mono_class_from_mono_type(inst->inst_vtype), NULL)
5291 : ainfo->size);
5292
5293 switch (size) {
5294 case 1:
5295 if (ainfo->reg == STK_BASE)
5296 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
5297 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
5298 break;
5299 case 2:
5300 if (ainfo->reg == STK_BASE)
5301 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
5302 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
5303 break;
5304 case 4:
5305 if (ainfo->reg == STK_BASE)
5306 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
5307 s390_st (code, reg, 0, inst->inst_basereg, doffset);
5308 break;
5309 case 8:
5310 if (ainfo->reg == STK_BASE)
5311 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
5312 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
5313 break;
5314 }
5315 } else if (ainfo->regtype == RegTypeStructByAddr) {
5316 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5317 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
5318 } else
5319 g_assert_not_reached ();
5320 }
5321 pos++;
5322 }
5323
5324 if (method->save_lmf) {
5325 /*---------------------------------------------------------------*/
5326 /* build the MonoLMF structure on the stack - see mini-s390x.h */
5327 /*---------------------------------------------------------------*/
5328 lmfOffset = alloc_size - sizeof(MonoLMF);
5329
5330 s390_lgr (code, s390_r13, cfg->frame_reg);
5331 s390_aghi (code, s390_r13, lmfOffset);
5332
5333 /*---------------------------------------------------------------*/
5334 /* Preserve the parameter registers while we fix up the lmf */
5335 /*---------------------------------------------------------------*/
5336 s390_stmg (code, s390_r2, s390_r6, s390_r13,
5337 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5338
5339 /*---------------------------------------------------------------*/
5340 /* On return from this call r2 have the address of the &lmf */
5341 /*---------------------------------------------------------------*/
5342 if (lmf_addr_tls_offset == -1) {
5343 s390_basr(code, s390_r14, 0);
5344 s390_j (code, 6);
5345 mono_add_patch_info (cfg, code - cfg->native_code,
5346 MONO_PATCH_INFO_INTERNAL_METHOD,
5347 (gpointer)"mono_get_lmf_addr");
5348 s390_llong(code, 0);
5349 s390_lg (code, s390_r1, 0, s390_r14, 4);
5350 s390_basr (code, s390_r14, s390_r1);
5351 } else {
5352 /*-------------------------------------------------------*/
5353 /* Get LMF by getting value from thread level storage */
5354 /*-------------------------------------------------------*/
5355 s390_ear (code, s390_r1, 0);
5356 s390_sllg(code, s390_r1, s390_r1, 0, 32);
5357 s390_ear (code, s390_r1, 1);
5358 s390_lg (code, s390_r2, 0, s390_r1, lmf_addr_tls_offset);
5359 }
5360
5361 /*---------------------------------------------------------------*/
5362 /* Set lmf.lmf_addr = jit_tls->lmf */
5363 /*---------------------------------------------------------------*/
5364 s390_stg (code, s390_r2, 0, s390_r13,
5365 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
5366
5367 /*---------------------------------------------------------------*/
5368 /* Get current lmf */
5369 /*---------------------------------------------------------------*/
5370 s390_lg (code, s390_r0, 0, s390_r2, 0);
5371
5372 /*---------------------------------------------------------------*/
5373 /* Set our lmf as the current lmf */
5374 /*---------------------------------------------------------------*/
5375 s390_stg (code, s390_r13, 0, s390_r2, 0);
5376
5377 /*---------------------------------------------------------------*/
5378 /* Have our lmf.previous_lmf point to the last lmf */
5379 /*---------------------------------------------------------------*/
5380 s390_stg (code, s390_r0, 0, s390_r13,
5381 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
5382
5383 /*---------------------------------------------------------------*/
5384 /* save method info */
5385 /*---------------------------------------------------------------*/
5386 s390_basr (code, s390_r1, 0);
5387 s390_j (code, 6);
5388 s390_llong (code, method);
5389 s390_lg (code, s390_r1, 0, s390_r1, 4);
5390 s390_stg (code, s390_r1, 0, s390_r13,
5391 G_STRUCT_OFFSET(MonoLMF, method));
5392
5393 /*---------------------------------------------------------------*/
5394 /* save the current IP */
5395 /*---------------------------------------------------------------*/
5396 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5397 s390_basr (code, s390_r1, 0);
5398 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5399
5400 /*---------------------------------------------------------------*/
5401 /* Save general and floating point registers */
5402 /*---------------------------------------------------------------*/
5403 s390_stmg (code, s390_r2, s390_r12, s390_r13,
5404 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5405 for (i = 0; i < 16; i++) {
5406 s390_std (code, i, 0, s390_r13,
5407 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5408 }
5409
5410 /*---------------------------------------------------------------*/
5411 /* Restore the parameter registers now that we've set up the lmf */
5412 /*---------------------------------------------------------------*/
5413 s390_lmg (code, s390_r2, s390_r6, s390_r13,
5414 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5415 }
5416
5417 if (tracing)
5418 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
5419
5420 cfg->code_len = code - cfg->native_code;
5421 g_assert (cfg->code_len < cfg->code_size);
5422
5423 return code;
5424 }
5425
5426 /*========================= End of Function ========================*/
5427
5428 /*------------------------------------------------------------------*/
5429 /* */
5430 /* Name - mono_arch_emit_epilog */
5431 /* */
5432 /* Function - Emit the instructions for a function epilog. */
5433 /* */
5434 /*------------------------------------------------------------------*/
5435
5436 void
5437 mono_arch_emit_epilog (MonoCompile *cfg)
5438 {
5439 MonoMethod *method = cfg->method;
5440 int tracing = 0;
5441 guint8 *code;
5442 int max_epilog_size = 96;
5443
5444 if (cfg->method->save_lmf)
5445 max_epilog_size += 128;
5446
5447 if (mono_jit_trace_calls != NULL)
5448 max_epilog_size += 128;
5449
5450 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5451 max_epilog_size += 128;
5452
5453 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5454 cfg->code_size *= 2;
5455 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5456 cfg->stat_code_reallocs++;
5457 }
5458
5459 code = cfg->native_code + cfg->code_len;
5460
5461 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5462 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5463 tracing = 1;
5464 }
5465
5466 if (method->save_lmf)
5467 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5468
5469 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
5470 // if (cfg->frame_reg != STK_BASE)
5471 // s390_lgr (code, STK_BASE, cfg->frame_reg);
5472 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
5473 } else
5474 code = backUpStackPtr(cfg, code);
5475
5476 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5477 s390_br (code, s390_r14);
5478
5479 cfg->code_len = code - cfg->native_code;
5480
5481 g_assert (cfg->code_len < cfg->code_size);
5482
5483 }
5484
5485 /*========================= End of Function ========================*/
5486
5487 /*------------------------------------------------------------------*/
5488 /* */
5489 /* Name - mono_arch_emit_exceptions */
5490 /* */
5491 /* Function - Emit the blocks to handle exception conditions. */
5492 /* */
5493 /*------------------------------------------------------------------*/
5494
5495 void
5496 mono_arch_emit_exceptions (MonoCompile *cfg)
5497 {
5498 MonoJumpInfo *patch_info;
5499 guint8 *code;
5500 int nThrows = 0,
5501 exc_count = 0,
5502 iExc;
5503 guint32 code_size;
5504 MonoClass *exc_classes [MAX_EXC];
5505 guint8 *exc_throw_start [MAX_EXC];
5506
5507 for (patch_info = cfg->patch_info;
5508 patch_info;
5509 patch_info = patch_info->next) {
5510 if (patch_info->type == MONO_PATCH_INFO_EXC)
5511 exc_count++;
5512 }
5513
5514 code_size = exc_count * 48;
5515
5516 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5517 cfg->code_size *= 2;
5518 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5519 cfg->stat_code_reallocs++;
5520 }
5521
5522 code = cfg->native_code + cfg->code_len;
5523
5524 /*---------------------------------------------------------------------*/
5525 /* Add code to raise exceptions */
5526 /*---------------------------------------------------------------------*/
5527 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5528 switch (patch_info->type) {
5529 case MONO_PATCH_INFO_EXC: {
5530 guint8 *ip = patch_info->ip.i + cfg->native_code;
5531 MonoClass *exc_class;
5532 guint64 throw_ip;
5533
5534 /*-----------------------------------------------------*/
5535 /* Patch the branch in epilog to come here */
5536 /*-----------------------------------------------------*/
5537 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
5538
5539 exc_class = mono_class_from_name (mono_defaults.corlib,
5540 "System",
5541 patch_info->data.name);
5542 g_assert (exc_class);
5543 throw_ip = patch_info->ip.i;
5544
5545 for (iExc = 0; iExc < nThrows; ++iExc)
5546 if (exc_classes [iExc] == exc_class)
5547 break;
5548
5549 if (iExc < nThrows) {
5550 s390_jcl (code, S390_CC_UN,
5551 (guint64) exc_throw_start [iExc]);
5552 patch_info->type = MONO_PATCH_INFO_NONE;
5553 } else {
5554
5555 if (nThrows < MAX_EXC) {
5556 exc_classes [nThrows] = exc_class;
5557 exc_throw_start [nThrows] = code;
5558 }
5559
5560 /*---------------------------------------------*/
5561 /* Patch the parameter passed to the handler */
5562 /*---------------------------------------------*/
5563 s390_basr (code, s390_r13, 0);
5564 s390_j (code, 6);
5565 // s390_llong(code, patch_info->data.target);
5566 s390_llong(code, exc_class->type_token);
5567 /*---------------------------------------------*/
5568 /* Load return address & parameter register */
5569 /*---------------------------------------------*/
5570 s390_larl (code, s390_r14, (guint64)S390_RELATIVE((patch_info->ip.i +
5571 cfg->native_code + 8), code));
5572 s390_lg (code, s390_r2, 0, s390_r13, 4);
5573 /*---------------------------------------------*/
5574 /* Reuse the current patch to set the jump */
5575 /*---------------------------------------------*/
5576 s390_basr (code, s390_r13, 0);
5577 s390_j (code, 6);
5578 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5579 patch_info->data.name = "mono_arch_throw_corlib_exception";
5580 patch_info->ip.i = code - cfg->native_code;
5581 s390_llong(code, 0);
5582 s390_lg (code, s390_r1, 0, s390_r13, 4);
5583 s390_br (code, s390_r1);
5584 }
5585 break;
5586 }
5587 default:
5588 /* do nothing */
5589 break;
5590 }
5591 }
5592
5593 cfg->code_len = code - cfg->native_code;
5594
5595 g_assert (cfg->code_len < cfg->code_size);
5596
5597 }
5598
5599 /*========================= End of Function ========================*/
5600
5601 /*------------------------------------------------------------------*/
5602 /* */
5603 /* Name - mono_arch_finish_init */
5604 /* */
5605 /* Function - Setup the JIT's Thread Level Specific Data. */
5606 /* */
5607 /*------------------------------------------------------------------*/
5608
5609 void
5610 mono_arch_finish_init (void)
5611 {
5612 appdomain_tls_offset = mono_domain_get_tls_offset();
5613 lmf_tls_offset = mono_get_lmf_tls_offset();
5614 lmf_addr_tls_offset = mono_get_lmf_addr_tls_offset();
5615 }
5616
5617 /*========================= End of Function ========================*/
5618
5619 /*------------------------------------------------------------------*/
5620 /* */
5621 /* Name - mono_arch_free_jit_tls_data */
5622 /* */
5623 /* Function - Free tls data. */
5624 /* */
5625 /*------------------------------------------------------------------*/
5626
5627 void
5628 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5629 {
5630 }
5631
5632 /*========================= End of Function ========================*/
5633
5634 /*------------------------------------------------------------------*/
5635 /* */
5636 /* Name - mono_arch_emit_inst_for_method */
5637 /* */
5638 /*------------------------------------------------------------------*/
5639
5640 MonoInst*
5641 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5642 {
5643 return NULL;
5644 }
5645
5646 /*========================= End of Function ========================*/
5647
5648 /*------------------------------------------------------------------*/
5649 /* */
5650 /* Name - mono_arch_decompose_opts */
5651 /* */
5652 /* Function - Decompose opcode into a System z opcode. */
5653 /* */
5654 /*------------------------------------------------------------------*/
5655
5656 void
5657 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5658 {
5659 /*
5660 * Have to rename these to avoid being decomposed normally, since the normal
5661 * decomposition does not work on S390.
5662 */
5663 switch (ins->opcode) {
5664 case OP_ISUB_OVF:
5665 ins->opcode = OP_S390_ISUB_OVF;
5666 break;
5667 case OP_ISUB_OVF_UN:
5668 ins->opcode = OP_S390_ISUB_OVF_UN;
5669 break;
5670 case OP_IADD_OVF:
5671 ins->opcode = OP_S390_IADD_OVF;
5672 break;
5673 case OP_IADD_OVF_UN:
5674 ins->opcode = OP_S390_IADD_OVF_UN;
5675 break;
5676 case OP_LADD_OVF:
5677 ins->opcode = OP_S390_LADD_OVF;
5678 break;
5679 case OP_LADD_OVF_UN:
5680 ins->opcode = OP_S390_LADD_OVF_UN;
5681 break;
5682 case OP_LSUB_OVF:
5683 ins->opcode = OP_S390_LSUB_OVF;
5684 break;
5685 case OP_LSUB_OVF_UN:
5686 ins->opcode = OP_S390_LSUB_OVF_UN;
5687 break;
5688 default:
5689 break;
5690 }
5691 }
5692
5693 /*========================= End of Function ========================*/
5694
5695 /*------------------------------------------------------------------*/
5696 /* */
5697 /* Name - mono_arch_print_tree */
5698 /* */
5699 /* Function - Print platform-specific opcode details. */
5700 /* */
5701 /* Returns - 1 - opcode details have been printed */
5702 /* 0 - opcode details have not been printed */
5703 /* */
5704 /*------------------------------------------------------------------*/
5705
5706 gboolean
5707 mono_arch_print_tree (MonoInst *tree, int arity)
5708 {
5709 gboolean done;
5710
5711 switch (tree->opcode) {
5712 case OP_S390_LOADARG:
5713 case OP_S390_ARGREG:
5714 case OP_S390_ARGPTR:
5715 printf ("[0x%lx(%s)]", tree->inst_offset,
5716 mono_arch_regname (tree->inst_basereg));
5717 done = 1;
5718 break;
5719 case OP_S390_STKARG:
5720 printf ("[0x%lx(previous_frame)]",
5721 tree->inst_offset);
5722 done = 1;
5723 break;
5724 case OP_S390_MOVE:
5725 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5726 tree->inst_offset, tree->backend.size,
5727 mono_arch_regname(tree->dreg),
5728 tree->inst_imm,
5729 mono_arch_regname(tree->sreg1));
5730 done = 1;
5731 break;
5732 case OP_S390_SETF4RET:
5733 printf ("[f%s,f%s]",
5734 mono_arch_regname (tree->dreg),
5735 mono_arch_regname (tree->sreg1));
5736 done = 1;
5737 break;
5738 case OP_TLS_GET:
5739 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5740 tree->inst_imm,
5741 mono_arch_regname (tree->sreg1));
5742 done = 1;
5743 break;
5744 case OP_S390_BKCHAIN:
5745 printf ("[previous_frame(%s)]",
5746 mono_arch_regname (tree->sreg1));
5747 done = 1;
5748 default:
5749 done = 0;
5750 }
5751 return (done);
5752 }
5753
5754 /*========================= End of Function ========================*/
5755
5756 /*------------------------------------------------------------------*/
5757 /* */
5758 /* Name - mono_arch_regalloc_cost */
5759 /* */
5760 /* Function - Determine the cost, in the number of memory */
5761 /* references, of the action of allocating the var- */
5762 /* iable VMV into a register during global register */
5763 /* allocation. */
5764 /* */
5765 /* Returns - Cost */
5766 /* */
5767 /*------------------------------------------------------------------*/
5768
5769 guint32
5770 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5771 {
5772 /* FIXME: */
5773 return 2;
5774 }
5775
5776 /*========================= End of Function ========================*/
5777
5778 /*------------------------------------------------------------------*/
5779 /* */
5780 /* Name - mono_arch_get_domain_intrinsic */
5781 /* */
5782 /* Function - */
5783 /* */
5784 /* Returns - */
5785 /* */
5786 /*------------------------------------------------------------------*/
5787
5788 MonoInst *
5789 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5790 {
5791 MonoInst *ins;
5792
5793 if (appdomain_tls_offset == -1)
5794 return NULL;
5795
5796 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5797 ins->inst_offset = appdomain_tls_offset;
5798 return (ins);
5799 }
5800
5801 /*========================= End of Function ========================*/
5802
5803 /*------------------------------------------------------------------*/
5804 /* */
5805 /* Name - mono_arch_flush_register_windows */
5806 /* */
5807 /* Function - */
5808 /* */
5809 /* Returns - */
5810 /* */
5811 /*------------------------------------------------------------------*/
5812
5813 void
5814 mono_arch_flush_register_windows (void)
5815 {
5816 }
5817
5818 /*========================= End of Function ========================*/
5819
5820 /*------------------------------------------------------------------*/
5821 /* */
5822 /* Name - mono_arch_is_inst_imm */
5823 /* */
5824 /* Function - Determine if operand qualifies as an immediate */
5825 /* value. For s390 this is a value -32768-32768 */
5826 /* */
5827 /* Returns - True|False - is [not] immediate value. */
5828 /* */
5829 /*------------------------------------------------------------------*/
5830
5831 gboolean
5832 mono_arch_is_inst_imm (gint64 imm)
5833 {
5834 return s390_is_imm16 (imm);
5835 }
5836
5837 /*========================= End of Function ========================*/
5838
5839 /*------------------------------------------------------------------*/
5840 /* */
5841 /* Name - mono_arch_get_patch_offset */
5842 /* */
5843 /* Function - Dummy entry point until s390x supports aot. */
5844 /* */
5845 /* Returns - Offset for patch. */
5846 /* */
5847 /*------------------------------------------------------------------*/
5848
5849 guint32
5850 mono_arch_get_patch_offset (guint8 *code)
5851 {
5852 return 0;
5853 }
5854
5855 /*========================= End of Function ========================*/
5856
5857 /*------------------------------------------------------------------*/
5858 /* */
5859 /* Name - mono_arch_context_get_int_reg. */
5860 /* */
5861 /* Function - */
5862 /* */
5863 /* Returns - Return a register from the context. */
5864 /* */
5865 /*------------------------------------------------------------------*/
5866
5867 mgreg_t
5868 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5869 {
5870 return ((mgreg_t) ctx->uc_mcontext.gregs[reg]);
5871 }
5872
5873 /*========================= End of Function ========================*/
5874
5875 /*------------------------------------------------------------------*/
5876 /* */
5877 /* Name - mono_arch_context_set_int_reg. */
5878 /* */
5879 /* Function - Set a value in a specified register. */
5880 /* */
5881 /*------------------------------------------------------------------*/
5882
5883 void
5884 mono_arch_context_set_int_reg (MonoContext *ctx, int reg, mgreg_t val)
5885 {
5886 ctx->uc_mcontext.gregs[reg] = val;
5887 }
5888
5889 /*========================= End of Function ========================*/
5890
5891 /*------------------------------------------------------------------*/
5892 /* */
5893 /* Name - mono_arch_get_this_arg_from_call. */
5894 /* */
5895 /* Function - */
5896 /* */
5897 /*------------------------------------------------------------------*/
5898
5899 gpointer
5900 mono_arch_get_this_arg_from_call (mgreg_t *regs, guint8 *code)
5901 {
5902 MonoLMF *lmf = (MonoLMF *) ((gchar *) regs - sizeof(MonoLMF));
5903
5904 return (gpointer) lmf->gregs [s390_r2];
5905 }
5906
5907 /*========================= End of Function ========================*/
5908
5909 /*------------------------------------------------------------------*/
5910 /* */
5911 /* Name - get_delegate_invoke_impl. */
5912 /* */
5913 /* Function - */
5914 /* */
5915 /*------------------------------------------------------------------*/
5916
5917 static gpointer
5918 get_delegate_invoke_impl (gboolean has_target, guint32 param_count, guint32 *code_len, gboolean aot)
5919 {
5920 guint8 *code, *start;
5921
5922 if (has_target) {
5923 int size = 32;
5924
5925 start = code = mono_global_codeman_reserve (size);
5926
5927 /* Replace the this argument with the target */
5928 s390_lg (code, s390_r1, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, method_ptr));
5929 s390_lg (code, s390_r2, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, target));
5930 s390_br (code, s390_r1);
5931 g_assert ((code - start) <= size);
5932
5933 mono_arch_flush_icache (start, size);
5934 } else {
5935 int size, i;
5936
5937 size = 32 + param_count * 8;
5938 start = code = mono_global_codeman_reserve (size);
5939
5940 s390_lg (code, s390_r1, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, method_ptr));
5941 /* slide down the arguments */
5942 for (i = 0; i < param_count; ++i) {
5943 s390_lgr (code, (s390_r2 + i), (s390_r2 + i + 1));
5944 }
5945 s390_br (code, s390_r1);
5946
5947 g_assert ((code - start) <= size);
5948
5949 mono_arch_flush_icache (start, size);
5950 }
5951
5952 if (code_len)
5953 *code_len = code - start;
5954
5955 return start;
5956 }
5957
5958 /*========================= End of Function ========================*/
5959
5960 /*------------------------------------------------------------------*/
5961 /* */
5962 /* Name - mono_arch_get_delegate_invoke_impls. */
5963 /* */
5964 /* Function - */
5965 /* */
5966 /*------------------------------------------------------------------*/
5967
5968 GSList*
5969 mono_arch_get_delegate_invoke_impls (void)
5970 {
5971 GSList *res = NULL;
5972 guint8 *code;
5973 guint32 code_len;
5974 int i;
5975
5976 code = get_delegate_invoke_impl (TRUE, 0, &code_len, TRUE);
5977 res = g_slist_prepend (res, mono_tramp_info_create (g_strdup ("delegate_invoke_impl_has_target"), code, code_len, NULL, NULL));
5978
5979 for (i = 0; i < MAX_ARCH_DELEGATE_PARAMS; ++i) {
5980 code = get_delegate_invoke_impl (FALSE, i, &code_len, TRUE);
5981 res = g_slist_prepend (res, mono_tramp_info_create (g_strdup_printf ("delegate_invoke_impl_target_%d", i), code, code_len, NULL, NULL));
5982 }
5983
5984 return res;
5985 }
5986
5987 /*========================= End of Function ========================*/
5988
5989 /*------------------------------------------------------------------*/
5990 /* */
5991 /* Name - mono_arch_get_delegate_invoke_impl. */
5992 /* */
5993 /* Function - */
5994 /* */
5995 /*------------------------------------------------------------------*/
5996
5997 gpointer
5998 mono_arch_get_delegate_invoke_impl (MonoMethodSignature *sig, gboolean has_target)
5999 {
6000 guint8 *code, *start;
6001
6002 /* FIXME: Support more cases */
6003 if (MONO_TYPE_ISSTRUCT (sig->ret))
6004 return NULL;
6005
6006 if (has_target) {
6007 static guint8* cached = NULL;
6008
6009 if (cached)
6010 return cached;
6011
6012 if (mono_aot_only)
6013 start = mono_aot_get_trampoline ("delegate_invoke_impl_has_target");
6014 else
6015 start = get_delegate_invoke_impl (TRUE, 0, NULL, FALSE);
6016
6017 mono_memory_barrier ();
6018
6019 cached = start;
6020 } else {
6021 static guint8* cache [MAX_ARCH_DELEGATE_PARAMS + 1] = {NULL};
6022 int i;
6023
6024 if (sig->param_count > MAX_ARCH_DELEGATE_PARAMS)
6025 return NULL;
6026 for (i = 0; i < sig->param_count; ++i)
6027 if (!mono_is_regsize_var (sig->params [i]))
6028 return NULL;
6029
6030
6031 code = cache [sig->param_count];
6032 if (code)
6033 return code;
6034
6035 if (mono_aot_only) {
6036 char *name = g_strdup_printf ("delegate_invoke_impl_target_%d", sig->param_count);
6037 start = mono_aot_get_trampoline (name);
6038 g_free (name);
6039 } else {
6040 start = get_delegate_invoke_impl (FALSE, sig->param_count, NULL, FALSE);
6041 }
6042
6043 mono_memory_barrier ();
6044
6045 cache [sig->param_count] = start;
6046 }
6047 return start;
6048 }
6049
6050 /*========================= End of Function ========================*/
6051
6052 /*------------------------------------------------------------------*/
6053 /* */
6054 /* Name - mono_arch_build_imt_thunk. */
6055 /* */
6056 /* Function - */
6057 /* */
6058 /*------------------------------------------------------------------*/
6059
6060 gpointer
6061 mono_arch_build_imt_thunk (MonoVTable *vtable, MonoDomain *domain,
6062 MonoIMTCheckItem **imt_entries, int count,
6063 gpointer fail_tramp)
6064 {
6065 int i;
6066 int size = 0;
6067 guchar *code, *start;
6068
6069 for (i = 0; i < count; ++i) {
6070 MonoIMTCheckItem *item = imt_entries [i];
6071 if (item->is_equals) {
6072 if (item->check_target_idx) {
6073 if (!item->compare_done)
6074 item->chunk_size += CMP_SIZE + JUMP_SIZE;
6075 if (item->has_target_code)
6076 item->chunk_size += BR_SIZE + JUMP_SIZE + LOADCON_SIZE;
6077 else
6078 item->chunk_size += BR_SIZE + JUMP_SIZE + LOADCON_SIZE +
6079 LOAD_SIZE;
6080 } else {
6081 if (fail_tramp) {
6082 item->chunk_size += CMP_SIZE + 2 * BR_SIZE + JUMP_SIZE +
6083 2 * LOADCON_SIZE;
6084 if (!item->has_target_code)
6085 item->chunk_size += LOAD_SIZE;
6086 } else {
6087 item->chunk_size += LOADCON_SIZE + LOAD_SIZE + BR_SIZE;
6088 #if ENABLE_WRONG_METHOD_CHECK
6089 item->chunk_size += CMP_SIZE + JUMP_SIZE;
6090 #endif
6091 }
6092 }
6093 } else {
6094 item->chunk_size += CMP_SIZE + JUMP_SIZE;
6095 imt_entries [item->check_target_idx]->compare_done = TRUE;
6096 }
6097 size += item->chunk_size;
6098 }
6099
6100 if (fail_tramp)
6101 code = mono_method_alloc_generic_virtual_thunk (domain, size);
6102 else
6103 code = mono_domain_code_reserve (domain, size);
6104
6105 start = code;
6106
6107 for (i = 0; i < count; ++i) {
6108 MonoIMTCheckItem *item = imt_entries [i];
6109 item->code_target = (guint8 *) code;
6110 if (item->is_equals) {
6111 if (item->check_target_idx) {
6112 if (!item->compare_done) {
6113 s390_basr (code, s390_r13, s390_r0);
6114 s390_j (code, 6);
6115 s390_llong(code, item->key);
6116 s390_lg (code, s390_r0, 0, s390_r13, 4);
6117 s390_cgr (code, s390_r0, MONO_ARCH_IMT_REG);
6118 }
6119 item->jmp_code = (guint8*) code;
6120 s390_jcl (code, S390_CC_NE, 0);
6121
6122 s390_basr (code, s390_r13, s390_r0);
6123 s390_j (code, 6);
6124 if (item->has_target_code) {
6125 s390_llong(code, item->value.target_code);
6126 s390_lg (code, s390_r1, 0, s390_r13, 4);
6127 } else {
6128 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
6129 s390_lg (code, s390_r1, 0, s390_r13, 4);
6130 s390_lg (code, s390_r1, 0, s390_r1, 0);
6131 }
6132 s390_br (code, s390_r1);
6133 } else {
6134 if (fail_tramp) {
6135 gint64 target;
6136
6137 s390_basr (code, s390_r13, s390_r0);
6138 s390_j (code, 6);
6139 s390_llong(code, item->key);
6140 s390_lg (code, s390_r0, 0, s390_r13, 4);
6141 s390_cgr (code, s390_r0, MONO_ARCH_IMT_REG);
6142 item->jmp_code = (guint8*) code;
6143 s390_jcl (code, S390_CC_NE, 0);
6144 s390_basr (code, s390_r13, s390_r0);
6145 s390_j (code, 6);
6146 if (item->has_target_code) {
6147 s390_llong(code, item->value.target_code);
6148 s390_lg (code, s390_r1, 0, s390_r13, 4);
6149 } else {
6150 g_assert (vtable);
6151 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
6152 s390_lg (code, s390_r1, 0, s390_r13, 4);
6153 s390_lg (code, s390_r1, 0, s390_r1, 0);
6154 }
6155 s390_br (code, s390_r1);
6156 target = S390_RELATIVE(code, item->jmp_code);
6157 s390_patch_rel(item->jmp_code+2, target);
6158 s390_basr (code, s390_r13, s390_r0);
6159 s390_j (code, 6);
6160 s390_llong(code, fail_tramp);
6161 s390_lg (code, s390_r1, 0, s390_r13, 4);
6162 s390_br (code, s390_r1);
6163 item->jmp_code = NULL;
6164 } else {
6165 /* enable the commented code to assert on wrong method */
6166 #if ENABLE_WRONG_METHOD_CHECK
6167 g_assert_not_reached ();
6168 #endif
6169 s390_basr (code, s390_r13, s390_r0);
6170 s390_j (code, 6);
6171 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
6172 s390_lg (code, s390_r1, 0, s390_r13, 4);
6173 s390_lg (code, s390_r1, 0, s390_r1, 0);
6174 s390_br (code, s390_r1);
6175 #if ENABLE_WRONG_METHOD_CHECK
6176 g_assert_not_reached ();
6177 #endif
6178 }
6179 }
6180 } else {
6181 s390_basr (code, s390_r13, s390_r0);
6182 s390_j (code, 6);
6183 s390_llong(code, item->key);
6184 s390_lg (code, s390_r0, 0, s390_r13, 4);
6185 s390_cgr (code, MONO_ARCH_IMT_REG, s390_r0);
6186 item->jmp_code = (guint8 *) code;
6187 s390_jcl (code, S390_CC_GE, 0);
6188 }
6189 }
6190 /* patch the branches to get to the target items */
6191 for (i = 0; i < count; ++i) {
6192 MonoIMTCheckItem *item = imt_entries [i];
6193 if (item->jmp_code) {
6194 if (item->check_target_idx) {
6195 gint64 offset;
6196 offset = S390_RELATIVE(imt_entries [item->check_target_idx]->code_target,
6197 item->jmp_code);
6198 s390_patch_rel ((guchar *) item->jmp_code + 2, (guint64) offset);
6199 }
6200 }
6201 }
6202
6203 mono_arch_flush_icache ((guint8*)start, (code - start));
6204
6205 if (!fail_tramp)
6206 mono_stats.imt_thunks_size += (code - start);
6207
6208 g_assert (code - start <= size);
6209
6210 return (start);
6211 }
6212
6213 /*========================= End of Function ========================*/
6214
6215 /*------------------------------------------------------------------*/
6216 /* */
6217 /* Name - mono_arch_find_imt_method. */
6218 /* */
6219 /* Function - Get the method address from MONO_ARCH_IMT_REG */
6220 /* found in the save area. */
6221 /* */
6222 /*------------------------------------------------------------------*/
6223
6224 MonoMethod*
6225 mono_arch_find_imt_method (mgreg_t *regs, guint8 *code)
6226 {
6227 MonoLMF *lmf = (MonoLMF *) ((gchar *) regs - sizeof(MonoLMF));
6228
6229 return ((MonoMethod *) lmf->gregs [MONO_ARCH_IMT_REG]);
6230 }
6231
6232 /*========================= End of Function ========================*/
6233
6234 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6235
6236 /*------------------------------------------------------------------*/
6237 /* */
6238 /* Name - mono_arch_set_breakpoint. */
6239 /* */
6240 /* Function - Set a breakpoint at the native code corresponding */
6241 /* to JI at NATIVE_OFFSET. The location should */
6242 /* contain code emitted by OP_SEQ_POINT. */
6243 /* */
6244 /*------------------------------------------------------------------*/
6245
6246 void
6247 mono_arch_set_breakpoint (MonoJitInfo *ji, guint8 *ip)
6248 {
6249 guint8 *code = ip;
6250
6251 breakpointCode.pTrigger = bp_trigger_page;
6252 memcpy(code, (void *) &breakpointCode, BREAKPOINT_SIZE);
6253 code += BREAKPOINT_SIZE;
6254 }
6255
6256 /*========================= End of Function ========================*/
6257
6258 /*------------------------------------------------------------------*/
6259 /* */
6260 /* Name - mono_arch_clear_breakpoint. */
6261 /* */
6262 /* Function - Clear the breakpoint at IP. */
6263 /* */
6264 /*------------------------------------------------------------------*/
6265
6266 void
6267 mono_arch_clear_breakpoint (MonoJitInfo *ji, guint8 *ip)
6268 {
6269 guint8 *code = ip;
6270 int i;
6271
6272 for (i = 0; i < (BREAKPOINT_SIZE / S390X_NOP_SIZE); i++)
6273 s390_nop(code);
6274 }
6275
6276 /*========================= End of Function ========================*/
6277
6278 /*------------------------------------------------------------------*/
6279 /* */
6280 /* Name - mono_arch_is_breakpoint_event. */
6281 /* */
6282 /* Function - */
6283 /* */
6284 /*------------------------------------------------------------------*/
6285
6286 gboolean
6287 mono_arch_is_breakpoint_event (void *info, void *sigctx)
6288 {
6289 siginfo_t* sinfo = (siginfo_t*) info;
6290 /* Sometimes the address is off by 4 */
6291 if (sinfo->si_addr >= bp_trigger_page && (guint8*)sinfo->si_addr <= (guint8*)bp_trigger_page + 128)
6292 return TRUE;
6293 else
6294 return FALSE;
6295 }
6296
6297 /*========================= End of Function ========================*/
6298
6299 /*------------------------------------------------------------------*/
6300 /* */
6301 /* Name - mono_arch_skip_breakpoint. */
6302 /* */
6303 /* Function - Modify the CTX so the IP is placed after the */
6304 /* breakpoint instruction, so when we resume, the */
6305 /* instruction is not executed again. */
6306 /* */
6307 /*------------------------------------------------------------------*/
6308
6309 void
6310 mono_arch_skip_breakpoint (MonoContext *ctx, MonoJitInfo *ji)
6311 {
6312 MONO_CONTEXT_SET_IP (ctx, (guint8*)MONO_CONTEXT_GET_IP (ctx) + BREAKPOINT_SIZE);
6313 }
6314
6315 /*========================= End of Function ========================*/
6316
6317 /*------------------------------------------------------------------*/
6318 /* */
6319 /* Name - mono_arch_start_single_stepping. */
6320 /* */
6321 /* Function - Start single stepping. */
6322 /* */
6323 /*------------------------------------------------------------------*/
6324
6325 void
6326 mono_arch_start_single_stepping (void)
6327 {
6328 mono_mprotect (ss_trigger_page, mono_pagesize (), 0);
6329 }
6330
6331 /*========================= End of Function ========================*/
6332
6333 /*------------------------------------------------------------------*/
6334 /* */
6335 /* Name - mono_arch_stop_single_stepping. */
6336 /* */
6337 /* Function - Stop single stepping. */
6338 /* */
6339 /*------------------------------------------------------------------*/
6340
6341 void
6342 mono_arch_stop_single_stepping (void)
6343 {
6344 mono_mprotect (ss_trigger_page, mono_pagesize (), MONO_MMAP_READ);
6345 }
6346
6347 /*========================= End of Function ========================*/
6348
6349 /*------------------------------------------------------------------*/
6350 /* */
6351 /* Name - mono_arch_is_single_step_event. */
6352 /* */
6353 /* Function - Return whether the machine state in sigctx cor- */
6354 /* responds to a single step event. */
6355 /* */
6356 /*------------------------------------------------------------------*/
6357
6358 gboolean
6359 mono_arch_is_single_step_event (void *info, void *sigctx)
6360 {
6361 siginfo_t* sinfo = (siginfo_t*) info;
6362
6363 /* Sometimes the address is off by 4 */
6364 if (sinfo->si_addr >= ss_trigger_page && (guint8*)sinfo->si_addr <= (guint8*)ss_trigger_page + 128)
6365 return TRUE;
6366 else
6367 return FALSE;
6368 }
6369
6370 /*========================= End of Function ========================*/
6371
6372 /*------------------------------------------------------------------*/
6373 /* */
6374 /* Name - mono_arch_skip_single_step. */
6375 /* */
6376 /* Function - Modify the ctx so the IP is placed after the */
6377 /* single step trigger instruction, so that the */
6378 /* instruction is not executed again. */
6379 /* */
6380 /*------------------------------------------------------------------*/
6381
6382 void
6383 mono_arch_skip_single_step (MonoContext *ctx)
6384 {
6385 MONO_CONTEXT_SET_IP (ctx, (guint8*)MONO_CONTEXT_GET_IP (ctx) + BREAKPOINT_SIZE);
6386 }
6387
6388 /*========================= End of Function ========================*/
6389
6390 /*------------------------------------------------------------------*/
6391 /* */
6392 /* Name - mono_arch_create_seq_point_info. */
6393 /* */
6394 /* Function - Return a pointer to a data struction which is */
6395 /* used by the sequence point implementation in */
6396 /* AOTed code. */
6397 /* */
6398 /*------------------------------------------------------------------*/
6399
6400 gpointer
6401 mono_arch_get_seq_point_info (MonoDomain *domain, guint8 *code)
6402 {
6403 NOT_IMPLEMENTED;
6404 return NULL;
6405 }
6406
6407 /*========================= End of Function ========================*/
6408
6409 #endif
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