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 <glib.h>
   7
   8 #ifdef __mono_ppc64__
   9 #define MONO_ARCH_CPU_SPEC ppc64_cpu_desc
  10 #else
  11 #define MONO_ARCH_CPU_SPEC ppcg4
  12 #endif
  13
  14 #define MONO_MAX_IREGS 32
  15 #define MONO_MAX_FREGS 32
  16
  17 #define MONO_SAVED_GREGS 19
  18 #define MONO_SAVED_FREGS 18
  19
  20 #define MONO_ARCH_FRAME_ALIGNMENT 16
  21
  22 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  23  * reproduceable results for benchmarks */
  24 #define MONO_ARCH_CODE_ALIGNMENT 32
  25
  26 void ppc_patch (guchar *code, const guchar *target);
  27 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
  28
  29 struct MonoLMF {
  30         /*
  31          * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
  32          * the other fields are not valid.
  33          */
  34         gpointer    previous_lmf;
  35         gpointer    lmf_addr;
  36         MonoMethod *method;
  37         gulong     ebp;
  38         gulong     eip;
  39         /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */
  40         gulong     dummy;
  41         mgreg_t    iregs [MONO_SAVED_GREGS]; /* 13..31 */
  42         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  43 };
  44
  45 /* we define our own structure and we'll copy the data
  46  * from sigcontext/ucontext/mach when we need it.
  47  * This also makes us save stack space and time when copying
  48  * We might also want to add an additional field to propagate
  49  * the original context from the signal handler.
  50  */
  51 typedef struct {
  52         gulong sc_ir;          // pc
  53         gulong sc_sp;          // r1
  54         mgreg_t regs [MONO_SAVED_GREGS];
  55         double fregs [MONO_SAVED_FREGS];
  56 } MonoContext;
  57
  58 /*
  59  * This structure is an extension of MonoLMF and contains extra information.
  60  */
  61 typedef struct {
  62         struct MonoLMF lmf;
  63         gboolean debugger_invoke;
  64         MonoContext ctx; /* if debugger_invoke is TRUE */
  65 } MonoLMFExt;
  66
  67 typedef struct MonoCompileArch {
  68         int fp_conv_var_offset;
  69 } MonoCompileArch;
  70
  71 /*
  72  * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4.
  73  * To support this, code needs to follow the following conventions:
  74  * - for the size of a pointer use sizeof (gpointer)
  75  * - for the size of a register/stack slot use SIZEOF_REGISTER.
  76  * - for variables which contain values of registers, use mgreg_t.
  77  * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg ()
  78  *   macros.
  79  * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str
  80  *   macros.
  81  * - make sure to not mix the two kinds of macros for the same memory location,
  82  *   since ppc is big endian, so a 8 byte store followed by a 4 byte load will
  83  *   load the upper 32 bit of the value.
  84  * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized
  85  *   quantities.
  86  */
  87
  88 #ifdef __mono_ppc64__
  89 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  90 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
  91 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
  92 #define PPC_USES_FUNCTION_DESCRIPTOR
  93
  94 #ifndef __mono_ilp32__
  95 #define MONO_ARCH_HAVE_TLS_GET 1
  96 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  97 #endif
  98
  99 #else /* must be __mono_ppc__ */
 100
 101 #if 0
 102 /* enabling this for PPC32 causes hangs in the thread/delegate tests.
 103    So disable for now. */
 104 #if defined(__linux__)
 105 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
 106 #endif
 107 #endif
 108
 109 #define MONO_ARCH_HAVE_TLS_GET 1
 110 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
 111 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
 112 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
 113 #endif
 114
 115 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
 116 #define MONO_ARCH_EMULATE_FREM 1
 117 #define MONO_ARCH_BIGMUL_INTRINS 1
 118 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
 119
 120 /* Parameters used by the register allocator */
 121 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r11) | (1 << ppc_r12))
 122 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
 123
 124 #if defined(__APPLE__) || defined(__mono_ppc64__)
 125 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
 126 #else
 127 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
 128 #endif
 129 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
 130
 131 #define MONO_ARCH_USE_FPSTACK FALSE
 132 #define MONO_ARCH_FPSTACK_SIZE 0
 133
 134 #ifdef __mono_ppc64__
 135 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 136                                         ((desc) == 'g'? ppc_f1:-1))
 137 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
 138 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
 139 #else
 140 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 141                                         ((desc) == 'l')? ppc_r4:\
 142                                         ((desc) == 'g'? ppc_f1:-1))
 143 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
 144 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
 145 #endif
 146
 147 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 148
 149 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
 150
 151 /* deal with some of the ABI differences here */
 152 #ifdef __APPLE__
 153 #define PPC_RET_ADDR_OFFSET 8
 154 #define PPC_STACK_PARAM_OFFSET 24
 155 #define PPC_MINIMAL_STACK_SIZE 24
 156 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 157 #define PPC_FIRST_ARG_REG ppc_r3
 158 #define PPC_LAST_ARG_REG ppc_r10
 159 #define PPC_FIRST_FPARG_REG ppc_f1
 160 #define PPC_LAST_FPARG_REG ppc_f13
 161 #define PPC_PASS_STRUCTS_BY_VALUE 1
 162 #else
 163 /* Linux */
 164 #ifdef __mono_ppc64__
 165 #define PPC_RET_ADDR_OFFSET 16
 166 #define PPC_STACK_PARAM_OFFSET 48
 167 #define PPC_MINIMAL_STACK_SIZE 48
 168 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
 169 #define PPC_LAST_FPARG_REG ppc_f13
 170 #define PPC_PASS_STRUCTS_BY_VALUE 1
 171 #define PPC_SMALL_RET_STRUCT_IN_REG 0
 172 #define PPC_THREAD_PTR_REG ppc_r13
 173 #else
 174 #define PPC_RET_ADDR_OFFSET 4
 175 #define PPC_STACK_PARAM_OFFSET 8
 176 #define PPC_MINIMAL_STACK_SIZE 8
 177 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 178 #define PPC_LAST_FPARG_REG ppc_f8
 179 #define PPC_PASS_STRUCTS_BY_VALUE 0
 180 #define PPC_SMALL_RET_STRUCT_IN_REG 1
 181 #define PPC_THREAD_PTR_REG ppc_r2
 182 #endif
 183 #define PPC_FIRST_ARG_REG ppc_r3
 184 #define PPC_LAST_ARG_REG ppc_r10
 185 #define PPC_FIRST_FPARG_REG ppc_f1
 186 #endif
 187
 188 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
 189 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
 190 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
 191 #endif /* HAVE_WORKING_SIGALTSTACK */
 192
 193 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
 194 #define MONO_ARCH_HAVE_IMT 1
 195 #define MONO_ARCH_IMT_REG ppc_r12
 196
 197 #define MONO_ARCH_VTABLE_REG    ppc_r12
 198 #define MONO_ARCH_RGCTX_REG     ppc_r12
 199
 200 #define MONO_ARCH_NO_IOV_CHECK 1
 201 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
 202 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
 203
 204 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
 205 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
 206
 207 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
 208 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
 209 #define MONO_ARCH_HAVE_XP_UNWIND 1
 210 #define MONO_ARCH_HAVE_FIND_JIT_INFO_EXT 1
 211
 212 #define MONO_ARCH_GSHARED_SUPPORTED 1
 213
 214 #define MONO_ARCH_NEED_DIV_CHECK 1
 215 #define MONO_ARCH_AOT_SUPPORTED 1
 216 #define MONO_ARCH_NEED_GOT_VAR 1
 217 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3)
 218 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
 219 #endif
 220
 221 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 222 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 223
 224 /* we have the stack pointer, not the base pointer in sigcontext */
 225 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (gulong)ip; } while (0);
 226 /* FIXME: should be called SET_SP */
 227 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (gulong)bp; } while (0);
 228
 229 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 230 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ppc_r31-13]))
 231 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 232
 233 #ifdef MONO_CROSS_COMPILE
 234
 235 typedef struct {
 236         unsigned long sp;
 237         unsigned long unused1;
 238         unsigned long lr;
 239 } MonoPPCStackFrame;
 240
 241 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached ()
 242
 243 #elif defined(__APPLE__)
 244
 245 typedef struct {
 246         unsigned long sp;
 247         unsigned long unused1;
 248         unsigned long lr;
 249 } MonoPPCStackFrame;
 250
 251 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 252                 gpointer r1;                                    \
 253                 __asm__ volatile("mr   %0,r1" : "=r" (r1));     \
 254                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 255                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 256         } while (0)
 257
 258 #else
 259
 260 typedef struct {
 261         mgreg_t sp;
 262 #ifdef __mono_ppc64__
 263         mgreg_t cr;
 264 #endif
 265         mgreg_t lr;
 266 } MonoPPCStackFrame;
 267
 268 #ifdef G_COMPILER_CODEWARRIOR
 269 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 270                 register gpointer r1_var;                                       \
 271                 asm { mr r1_var, r1 };  \
 272                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 273                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 274         } while (0)
 275
 276 #else
 277 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 278                 gpointer r1;                                    \
 279                 __asm__ volatile("mr   %0,1" : "=r" (r1));      \
 280                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 281                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 282         } while (0)
 283
 284 #endif
 285 #endif
 286
 287 typedef struct {
 288         gint8 reg;
 289         gint8 size;
 290         int vtsize;
 291         int offset;
 292 } MonoPPCArgInfo;
 293
 294 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
 295 typedef struct {
 296         gpointer code;
 297         gpointer toc;
 298         gpointer env;
 299 } MonoPPCFunctionDescriptor;
 300
 301 #define PPC_FTNPTR_SIZE                 sizeof (MonoPPCFunctionDescriptor)
 302 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code) MONO_INTERNAL;
 303 #else
 304 #define PPC_FTNPTR_SIZE                 0
 305 #define mono_ppc_create_pre_code_ftnptr(c)      c
 306 #endif
 307
 308 #if defined(__linux__)
 309 #define MONO_ARCH_USE_SIGACTION 1
 310 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
 311 #define MONO_ARCH_USE_SIGACTION 1
 312 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
 313 #define MONO_ARCH_USE_SIGACTION 1
 314 #elif defined(__NetBSD__)
 315 #define MONO_ARCH_USE_SIGACTION 1
 316 #elif defined(__FreeBSD__)
 317 #define MONO_ARCH_USE_SIGACTION 1
 318 #elif defined(MONO_CROSS_COMPILE)
 319         typedef MonoContext ucontext_t;
 320 /*      typedef struct {
 321                 int dummy;
 322         } ucontext_t;*/
 323         #define UCONTEXT_REG_Rn(ctx, n)
 324         #define UCONTEXT_REG_FPRn(ctx, n)
 325         #define UCONTEXT_REG_NIP(ctx)
 326         #define UCONTEXT_REG_LNK(ctx)
 327
 328 #else
 329 /* For other operating systems, we pull the definition from an external file */
 330 #include "mini-ppc-os.h"
 331 #endif
 332
 333 void
 334 mono_ppc_patch (guchar *code, const guchar *target) MONO_INTERNAL;
 335
 336 void
 337 mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow) MONO_INTERNAL;
 338
 339 #ifdef __mono_ppc64__
 340 #define MONO_PPC_32_64_CASE(c32,c64)    c64
 341 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...);
 342 #else
 343 #define MONO_PPC_32_64_CASE(c32,c64)    c32
 344 #endif
 345
 346 gboolean mono_ppc_is_direct_call_sequence (guint32 *code) MONO_INTERNAL;
 347
 348 void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) MONO_INTERNAL;
 349
 350 void mono_ppc_set_func_into_sigctx (void *sigctx, void *func) MONO_INTERNAL;
 351
 352 #endif /* __MONO_MINI_PPC_H__ */