mono/mini/mini-ppc.h

   1 #ifndef __MONO_MINI_PPC_H__
   2 #define __MONO_MINI_PPC_H__
   3
   4 #include <mono/arch/ppc/ppc-codegen.h>
   5 #include <mono/utils/mono-sigcontext.h>
   6 #include <mono/utils/mono-context.h>
   7 #include <mono/metadata/object.h>
   8 #include <glib.h>
   9
  10 #ifdef __mono_ppc64__
  11 #define MONO_ARCH_CPU_SPEC mono_ppc64_cpu_desc
  12 #else
  13 #define MONO_ARCH_CPU_SPEC mono_ppcg4
  14 #endif
  15
  16 #define MONO_MAX_IREGS 32
  17 #define MONO_MAX_FREGS 32
  18
  19 #define MONO_SAVED_GREGS 19
  20 #define MONO_SAVED_FREGS 18
  21
  22 #define MONO_ARCH_FRAME_ALIGNMENT 16
  23
  24 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  25  * reproduceable results for benchmarks */
  26 #define MONO_ARCH_CODE_ALIGNMENT 32
  27
  28 void ppc_patch (guchar *code, const guchar *target);
  29 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
  30
  31 struct MonoLMF {
  32         /*
  33          * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
  34          * the other fields are not valid.
  35          */
  36         gpointer    previous_lmf;
  37         gpointer    lmf_addr;
  38         MonoMethod *method;
  39         gulong     ebp;
  40         gulong     eip;
  41         /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */
  42         gulong     dummy;
  43         mgreg_t    iregs [MONO_SAVED_GREGS]; /* 13..31 */
  44         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  45 };
  46
  47
  48 typedef struct MonoCompileArch {
  49         int fp_conv_var_offset;
  50 } MonoCompileArch;
  51
  52 /*
  53  * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4.
  54  * To support this, code needs to follow the following conventions:
  55  * - for the size of a pointer use sizeof (gpointer)
  56  * - for the size of a register/stack slot use SIZEOF_REGISTER.
  57  * - for variables which contain values of registers, use mgreg_t.
  58  * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg ()
  59  *   macros.
  60  * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str
  61  *   macros.
  62  * - make sure to not mix the two kinds of macros for the same memory location,
  63  *   since ppc is big endian, so a 8 byte store followed by a 4 byte load will
  64  *   load the upper 32 bit of the value.
  65  * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized
  66  *   quantities.
  67  */
  68
  69 #ifdef __mono_ppc64__
  70 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  71 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
  72
  73 /* ELFv2 ABI doesn't use function descriptors.  */
  74 #if _CALL_ELF == 2
  75 #undef PPC_USES_FUNCTION_DESCRIPTOR
  76 #else
  77 #define PPC_USES_FUNCTION_DESCRIPTOR
  78 #endif
  79
  80 #else /* must be __mono_ppc__ */
  81
  82 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
  83 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
  84 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
  85 #endif
  86
  87 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
  88 #define MONO_ARCH_EMULATE_FREM 1
  89 #define MONO_ARCH_GC_MAPS_SUPPORTED 1
  90
  91 /* Parameters used by the register allocator */
  92 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r12) | (1 << ppc_r11))
  93 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
  94
  95 #if defined(__APPLE__) || defined(__mono_ppc64__)
  96 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
  97 #else
  98 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
  99 #endif
 100 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
 101
 102 #define MONO_ARCH_USE_FPSTACK FALSE
 103 #define MONO_ARCH_FPSTACK_SIZE 0
 104
 105 #ifdef __mono_ppc64__
 106 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 107                                         ((desc) == 'g'? ppc_f1:-1))
 108 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
 109 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
 110 #else
 111 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 112                                         ((desc) == 'l')? ppc_r4:\
 113                                         ((desc) == 'g'? ppc_f1:-1))
 114 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
 115 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
 116 #endif
 117
 118 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 119
 120 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
 121
 122 /* deal with some of the ABI differences here */
 123 #ifdef __APPLE__
 124 #define PPC_RET_ADDR_OFFSET 8
 125 #define PPC_STACK_PARAM_OFFSET 24
 126 #define PPC_MINIMAL_STACK_SIZE 24
 127 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 128 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
 129 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
 130 #define PPC_FIRST_ARG_REG ppc_r3
 131 #define PPC_LAST_ARG_REG ppc_r10
 132 #define PPC_FIRST_FPARG_REG ppc_f1
 133 #define PPC_LAST_FPARG_REG ppc_f13
 134 #define PPC_PASS_STRUCTS_BY_VALUE 1
 135 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 136 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 137 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
 138 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
 139 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
 140 #else
 141 /* Linux */
 142 #ifdef __mono_ppc64__
 143 #define PPC_RET_ADDR_OFFSET 16
 144  // Power LE abvi2
 145  #if (_CALL_ELF == 2)
 146   #define PPC_STACK_PARAM_OFFSET 32
 147   #define PPC_MINIMAL_STACK_SIZE 32
 148   #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 16
 149   #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 8
 150   #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1
 151   #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1
 152   #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 1
 153   #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 1
 154   #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 1
 155
 156 // FIXME: To get the test case  finally_block_ending_in_dead_bb  to work properly define the following
 157 // and then implement the fuction mono_arch_create_handler_block_trampoline.
 158 //  #define MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD 1
 159
 160 // Define "DEBUG_ELFABIV2" to allow for debugging output for ELF ABI v2 function call and return codegen
 161 //  #define DEBUG_ELFABIV2
 162
 163   #define MONO_ARCH_LLVM_SUPPORTED 1
 164
 165  #else
 166   #define PPC_STACK_PARAM_OFFSET 48
 167   #define PPC_MINIMAL_STACK_SIZE 48
 168   #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
 169   #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
 170   #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 171   #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 172   #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
 173   #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
 174   #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
 175  #endif
 176 #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK 1
 177 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
 178 #define PPC_LAST_FPARG_REG ppc_f13
 179 #define PPC_PASS_STRUCTS_BY_VALUE 1
 180 #define PPC_THREAD_PTR_REG ppc_r13
 181 #else
 182 #define PPC_RET_ADDR_OFFSET 4
 183 #define PPC_STACK_PARAM_OFFSET 8
 184 #define PPC_MINIMAL_STACK_SIZE 8
 185 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 186 #define PPC_LAST_FPARG_REG ppc_f8
 187 #define PPC_PASS_STRUCTS_BY_VALUE 0
 188 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
 189 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
 190 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 191 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
 192 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
 193 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
 194 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
 195 #define PPC_THREAD_PTR_REG ppc_r2
 196 #endif
 197 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1
 198 #define PPC_FIRST_ARG_REG ppc_r3
 199 #define PPC_LAST_ARG_REG ppc_r10
 200 #define PPC_FIRST_FPARG_REG ppc_f1
 201 #endif
 202
 203 #define PPC_CALL_REG ppc_r12
 204
 205 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
 206 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
 207 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
 208 #endif /* HAVE_WORKING_SIGALTSTACK */
 209
 210 #define MONO_ARCH_IMT_REG ppc_r11
 211
 212 #define MONO_ARCH_VTABLE_REG    ppc_r11
 213 #define MONO_ARCH_RGCTX_REG     MONO_ARCH_IMT_REG
 214
 215 #define MONO_ARCH_NO_IOV_CHECK 1
 216 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
 217 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
 218
 219 #define MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE 1
 220
 221 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
 222
 223 #define MONO_ARCH_GSHARED_SUPPORTED 1
 224
 225 #define MONO_ARCH_NEED_DIV_CHECK 1
 226 #define MONO_ARCH_AOT_SUPPORTED 1
 227 #define MONO_ARCH_NEED_GOT_VAR 1
 228 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3)
 229 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
 230 #endif
 231 #define MONO_ARCH_HAVE_OP_TAIL_CALL 1
 232
 233 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 234 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 235
 236 #ifdef MONO_CROSS_COMPILE
 237
 238 typedef struct {
 239         unsigned long sp;
 240         unsigned long unused1;
 241         unsigned long lr;
 242 } MonoPPCStackFrame;
 243
 244 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached ()
 245
 246 #elif defined(__APPLE__)
 247
 248 typedef struct {
 249         unsigned long sp;
 250         unsigned long unused1;
 251         unsigned long lr;
 252 } MonoPPCStackFrame;
 253
 254 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 255                 gpointer r1;                                    \
 256                 __asm__ volatile("mr   %0,r1" : "=r" (r1));     \
 257                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 258                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 259         } while (0)
 260
 261 #else
 262
 263 typedef struct {
 264         mgreg_t sp;
 265 #ifdef __mono_ppc64__
 266         mgreg_t cr;
 267 #endif
 268         mgreg_t lr;
 269 } MonoPPCStackFrame;
 270
 271 #ifdef G_COMPILER_CODEWARRIOR
 272 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 273                 register gpointer r1_var;                                       \
 274                 asm { mr r1_var, r1 };  \
 275                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 276                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 277         } while (0)
 278
 279 #else
 280 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 281                 gpointer r1;                                    \
 282                 __asm__ volatile("mr   %0,1" : "=r" (r1));      \
 283                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 284                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 285         } while (0)
 286
 287 #endif
 288 #endif
 289
 290 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
 291
 292 typedef struct {
 293         gint8 reg;
 294         gint8 size;
 295         int vtsize;
 296         int offset;
 297 } MonoPPCArgInfo;
 298
 299 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
 300 typedef struct {
 301         gpointer code;
 302         gpointer toc;
 303         gpointer env;
 304 } MonoPPCFunctionDescriptor;
 305
 306 #define PPC_FTNPTR_SIZE                 sizeof (MonoPPCFunctionDescriptor)
 307 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code);
 308 #else
 309 #define PPC_FTNPTR_SIZE                 0
 310 #define mono_ppc_create_pre_code_ftnptr(c)      c
 311 #endif
 312
 313 #if defined(__linux__)
 314 #define MONO_ARCH_USE_SIGACTION 1
 315 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
 316 #define MONO_ARCH_USE_SIGACTION 1
 317 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
 318 #define MONO_ARCH_USE_SIGACTION 1
 319 #elif defined(__NetBSD__)
 320 #define MONO_ARCH_USE_SIGACTION 1
 321 #elif defined(__FreeBSD__)
 322 #define MONO_ARCH_USE_SIGACTION 1
 323 #elif defined(MONO_CROSS_COMPILE)
 324         typedef MonoContext ucontext_t;
 325 /*      typedef struct {
 326                 int dummy;
 327         } ucontext_t;*/
 328         #define UCONTEXT_REG_Rn(ctx, n)
 329         #define UCONTEXT_REG_FPRn(ctx, n)
 330         #define UCONTEXT_REG_NIP(ctx)
 331         #define UCONTEXT_REG_LNK(ctx)
 332
 333 #else
 334 /* For other operating systems, we pull the definition from an external file */
 335 #include "mini-ppc-os.h"
 336 #endif
 337
 338 gboolean
 339 mono_ppc_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig);
 340
 341 void
 342 mono_ppc_patch (guchar *code, const guchar *target);
 343
 344 void
 345 mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow);
 346
 347 #ifdef __mono_ppc64__
 348 #define MONO_PPC_32_64_CASE(c32,c64)    c64
 349 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...);
 350 #else
 351 #define MONO_PPC_32_64_CASE(c32,c64)    c32
 352 #endif
 353
 354 gboolean mono_ppc_is_direct_call_sequence (guint32 *code);
 355
 356 void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr);
 357
 358 void mono_ppc_set_func_into_sigctx (void *sigctx, void *func);
 359
 360
 361 // Debugging macros for ELF ABI v2
 362 #ifdef DEBUG_ELFABIV2
 363
 364 #define DEBUG_ELFABIV2_printf(a, ...) \
 365 {if (getenv("DEBUG_ELFABIV2")) { printf(a, ##__VA_ARGS__); fflush(stdout); } }
 366
 367 #define DEBUG_ELFABIV2_mono_print_ins(a) \
 368 {if (getenv("DEBUG_ELFABIV2")) { if (!a) {printf("null\n");} else {mono_print_ins(a);} fflush(stdout); } }
 369
 370 extern char* mono_type_full_name (MonoType *type);
 371
 372 #define DEBUG_ELFABIV2_mono_print_type(a) \
 373 {if (getenv("DEBUG_ELFABIV2")) { printf("%s, size: %d\n", mono_type_get_name(a), mini_type_stack_size (a, 0)); fflush(stdout); } }
 374
 375 #define DEBUG_ELFABIV2_mono_print_class(a) \
 376 {if (getenv("DEBUG_ELFABIV2")) { printf("%s\n", mono_type_get_name(&a->byval_arg)); fflush(stdout); } }
 377
 378 #else
 379
 380 #define DEBUG_ELFABIV2_printf(a, ...)
 381 #define DEBUG_ELFABIV2_mono_print_ins(a)
 382 #define DEBUG_ELFABIV2_mono_print_type(a)
 383 #define DEBUG_ELFABIV2_mono_print_class(a)
 384
 385 #endif
 386
 387 #endif /* __MONO_MINI_PPC_H__ */