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* TextControl.cs: Make PageUp and PageDown more like the
[mono-project.git] / mono / mini / mini-s390.h
blob8fc8d364d30efd27fe2d31b2a56876bf73b9a98b
1 #ifndef __MONO_MINI_S390_H__
2 #define __MONO_MINI_S390_H__
3
4 #include <mono/arch/s390/s390-codegen.h>
5 #include <signal.h>
6
7 #define MONO_MAX_IREGS 16
8 #define MONO_MAX_FREGS 16
9
10 /*-------------------------------------------*/
11 /* Parameters used by the register allocator */
12 /*-------------------------------------------*/
13 #define MONO_ARCH_HAS_XP_LOCAL_REGALLOC 1
14
15 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
16 MonoInst *inst; \
17 int tmpr = 0; \
18 int sReg, dReg; \
19 \
20 inst = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
21 if (size > 256) { \
22 tmpr = mono_regstate_next_int (cfg->rs); \
23 MONO_EMIT_NEW_ICONST(cfg,tmpr,size); \
24 inst->dreg = dest; \
25 inst->inst_offset = offset; \
26 inst->sreg1 = src; \
27 inst->inst_imm = imm; \
28 inst->sreg2 = tmpr; \
29 } else { \
30 if (s390_is_uimm12(offset)) { \
31 inst->dreg = dest; \
32 inst->inst_offset = offset; \
33 } else { \
34 dReg = mono_regstate_next_int (cfg->rs); \
35 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
36 dReg, dest, offset); \
37 inst->dreg = dReg; \
38 inst->inst_offset = 0; \
39 } \
40 if (s390_is_uimm12(imm)) { \
41 inst->sreg1 = src; \
42 inst->inst_imm = imm; \
43 } else { \
44 sReg = mono_regstate_next_int (cfg->rs); \
45 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
46 sReg, src, imm); \
47 inst->sreg1 = sReg; \
48 inst->inst_imm = 0; \
49 } \
50 } \
51 inst->opcode = OP_S390_MOVE; \
52 inst->backend.size = size; \
53 mono_bblock_add_inst (cfg->cbb, inst); \
54 } while (0)
55
56 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
57 int reg = mono_regstate_next_int (cfg->rs); \
58 switch (size) { \
59 case 0: \
60 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
61 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
62 break; \
63 case 1: \
64 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
65 reg, sr, so); \
66 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
67 break; \
68 case 2: \
69 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
70 reg, sr, so); \
71 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
72 break; \
73 case 4: \
74 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
75 reg, sr, so); \
76 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
77 break; \
78 case 8: \
79 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
80 reg, sr, so); \
81 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
82 dr++; so += sizeof(guint32); \
83 reg = mono_regstate_next_int (cfg->rs); \
84 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
85 reg, sr, so); \
86 mono_call_inst_add_outarg_reg(s, call, reg, dr, FALSE); \
87 break; \
88 } \
89 } while (0)
90
91 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
92 int tmpr; \
93 switch (size) { \
94 case 0: \
95 tmpr = mono_regstate_next_int (cfg->rs); \
96 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
97 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
98 dr, dx, tmpr); \
99 break; \
100 case 1: \
101 tmpr = mono_regstate_next_int (cfg->rs); \
102 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
103 tmpr, sr, so); \
104 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
105 dr, dx, tmpr); \
106 break; \
107 case 2: \
108 tmpr = mono_regstate_next_int (cfg->rs); \
109 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
110 tmpr, sr, so); \
111 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
112 dr, dx, tmpr); \
113 break; \
114 case 4: \
115 case 8: \
116 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
117 break; \
118 } \
119 } while (0)
120
121 struct MonoLMF {
122 gpointer previous_lmf;
123 gpointer lmf_addr;
124 MonoMethod *method;
125 gulong ebp;
126 gulong eip;
127 gulong pregs[6];
128 gulong gregs[16];
129 gdouble fregs[16];
130 };
131
132 typedef struct ucontext MonoContext;
133
134 typedef struct MonoCompileArch {
135 } MonoCompileArch;
136
137 typedef struct
138 {
139 void *prev;
140 void *unused[5];
141 void *regs[8];
142 void *return_address;
143 } MonoS390StackFrame;
144
145 typedef struct
146 {
147 gint32 size;
148 gint32 offset;
149 gint32 offPrm;
150 } MonoS390ArgParm;
151
152 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
153 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
154 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
155 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
156 #define MONO_ARCH_EMULATE_LMUL 1
157 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
158 #define MONO_ARCH_NEED_DIV_CHECK 1
159 // #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
160 // #define MONO_ARCH_SIGNAL_STACK_SIZE 65536
161 // #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
162
163 #define MONO_ARCH_USE_SIGACTION 1
164 // #define CUSTOM_STACK_WALK 1
165 // #define CUSTOM_EXCEPTION_HANDLING 1
166 // #define mono_find_jit_info mono_arch_find_jit_info
167
168 #define S390_STACK_ALIGNMENT 8
169 #define S390_FIRST_ARG_REG s390_r2
170 #define S390_LAST_ARG_REG s390_r6
171 #define S390_FIRST_FPARG_REG s390_f0
172 #define S390_LAST_FPARG_REG s390_f2
173 #define S390_PASS_STRUCTS_BY_VALUE 1
174 #define S390_SMALL_RET_STRUCT_IN_REG 1
175
176 #define S390_NUM_REG_ARGS (S390_LAST_ARG_REG-S390_FIRST_ARG_REG+1)
177 #define S390_NUM_REG_FPARGS (S390_LAST_FPARG_REG-S390_FIRST_FPARG_REG)
178
179 /*===============================================*/
180 /* Definitions used by mini-codegen.c */
181 /*===============================================*/
182
183 /*--------------------------------------------*/
184 /* use s390_r2-s390_r6 as parm registers */
185 /* s390_r0, s390_r1, s390_r13 used internally */
186 /* s390_r15 is the stack pointer */
187 /*--------------------------------------------*/
188 #define MONO_ARCH_CALLEE_REGS (0x1ffc)
189
190 #define MONO_ARCH_CALLEE_SAVED_REGS 0xff80
191
192 /*----------------------------------------*/
193 /* use s390_f1/s390_f3-s390_f15 as temps */
194 /*----------------------------------------*/
195
196 #define MONO_ARCH_CALLEE_FREGS (0xfffe)
197
198 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
199
200 #define MONO_ARCH_USE_FPSTACK FALSE
201 #define MONO_ARCH_FPSTACK_SIZE 0
202
203 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? s390_r2 : \
204 ((desc == 'L') ? s390_r3 : \
205 ((desc == 'g') ? s390_f0 : - 1)))
206
207 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
208
209 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
210
211 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc == 'l') || (desc == 'L'))
212 //#define MONO_ARCH_INST_IS_REGPAIR(desc) (0)
213 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hr) ((desc == 'l') ? (hr + 1) : \
214 ((desc == 'L') ? s390_r2 : -1))
215
216 #define MONO_ARCH_IS_GLOBAL_IREG(reg) 0
217
218 #define MONO_ARCH_FRAME_ALIGNMENT (sizeof (glong))
219 #define MONO_ARCH_CODE_ALIGNMENT 32
220
221 #define MONO_ARCH_BASEREG s390_r15
222 #define MONO_ARCH_RETREG1 s390_r2
223
224 #define MONO_SPARC_STACK_BIAS 0
225
226 /*-----------------------------------------------*/
227 /* Macros used to generate instructions */
228 /*-----------------------------------------------*/
229 #define S390_OFFSET(b, t) (guchar *) ((gint32) (b) - (gint32) (t))
230 #define S390_RELATIVE(b, t) (guchar *) ((((gint32) (b) - (gint32) (t))) / 2)
231
232 #define CODEPTR(c, o) (o) = (short *) ((guint32) c - 2)
233 #define PTRSLOT(c, o) *(o) = (short) ((guint32) c - (guint32) (o) + 2)/2
234
235 #define S390_CC_EQ 8
236 #define S390_ALIGN(v, a) (((a) > 0 ? (((v) + ((a) - 1)) & ~((a) - 1)) : (v)))
237
238 #define MONO_CONTEXT_SET_IP(ctx,ip) \
239 do { \
240 (ctx)->uc_mcontext.gregs[14] = (unsigned long)ip; \
241 (ctx)->uc_mcontext.psw.addr = (unsigned long)ip; \
242 } while (0);
243
244 #define MONO_CONTEXT_SET_SP(ctx,bp) MONO_CONTEXT_SET_BP((ctx),(bp))
245 #define MONO_CONTEXT_SET_BP(ctx,bp) \
246 do { \
247 (ctx)->uc_mcontext.gregs[15] = (unsigned long)bp; \
248 (ctx)->uc_stack.ss_sp = (void*)bp; \
249 } while (0);
250
251 #define MONO_CONTEXT_GET_IP(ctx) context_get_ip ((ctx))
252 #define MONO_CONTEXT_GET_BP(ctx) MONO_CONTEXT_GET_SP((ctx))
253 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[15]))
254
255 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
256 MonoS390StackFrame *sframe; \
257 __asm__ volatile("lr %0,15" : "=r" (sframe)); \
258 MONO_CONTEXT_SET_BP ((ctx), sframe->prev); \
259 sframe = (MonoS390StackFrame*)sframe->prev; \
260 MONO_CONTEXT_SET_IP ((ctx), sframe->return_address); \
261 } while (0)
262
263 /*------------------------------------------------------------------*/
264 /* */
265 /* Name - context_get_ip */
266 /* */
267 /* Function - Extract the current instruction address from the */
268 /* context. */
269 /* */
270 /*------------------------------------------------------------------*/
271
272 static inline gpointer
273 context_get_ip (MonoContext *ctx)
274 {
275 gpointer ip;
276
277 ip = (gpointer) ((gint32) (ctx->uc_mcontext.psw.addr) & 0x7fffffff);
278 return ip;
279 }
280
281 /*========================= End of Function ========================*/
282
283 /*------------------------------------------------------------------*/
284 /* */
285 /* Name - s390_patch */
286 /* */
287 /* Function - Patch the code with a given value. */
288 /* */
289 /*------------------------------------------------------------------*/
290
291 static void inline
292 s390_patch (guchar *code, gint32 target)
293 {
294 gint32 *offset = (gint32 *) code;
295
296 if (target != 00) {
297 *offset = target;
298 }
299 }
300
301 /*========================= End of Function ========================*/
302
303 /*------------------------------------------------------------------*/
304 /* */
305 /* Name - restoreLMF */
306 /* */
307 /* Function - Restore the LMF state prior to exiting a method. */
308 /* */
309 /*------------------------------------------------------------------*/
310
311 #define restoreLMF(code, frame_reg, stack_usage) do \
312 { \
313 int lmfOffset = 0; \
314 \
315 s390_lr (code, s390_r13, frame_reg); \
316 \
317 lmfOffset = stack_usage - sizeof(MonoLMF); \
318 \
319 /*-------------------------------------------------*/ \
320 /* r13 = my lmf */ \
321 /*-------------------------------------------------*/ \
322 s390_ahi (code, s390_r13, lmfOffset); \
323 \
324 /*-------------------------------------------------*/ \
325 /* r6 = &jit_tls->lmf */ \
326 /*-------------------------------------------------*/ \
327 s390_l (code, s390_r6, 0, s390_r13, \
328 G_STRUCT_OFFSET(MonoLMF, lmf_addr)); \
329 \
330 /*-------------------------------------------------*/ \
331 /* r0 = lmf.previous_lmf */ \
332 /*-------------------------------------------------*/ \
333 s390_l (code, s390_r0, 0, s390_r13, \
334 G_STRUCT_OFFSET(MonoLMF, previous_lmf)); \
335 \
336 /*-------------------------------------------------*/ \
337 /* jit_tls->lmf = previous_lmf */ \
338 /*-------------------------------------------------*/ \
339 s390_l (code, s390_r13, 0, s390_r6, 0); \
340 s390_st (code, s390_r0, 0, s390_r6, 0); \
341 } while (0)
342
343 /*========================= End of Function ========================*/
344
345 #endif /* __MONO_MINI_S390_H__ */
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