mono/mini/mini-x86.h

   1 #ifndef __MONO_MINI_X86_H__
   2 #define __MONO_MINI_X86_H__
   3
   4 #include <mono/arch/x86/x86-codegen.h>
   5 #ifdef PLATFORM_WIN32
   6 #include <windows.h>
   7 /* use SIG* defines if possible */
   8 #ifdef HAVE_SIGNAL_H
   9 #include <signal.h>
  10 #endif
  11
  12 /* sigcontext surrogate */
  13 struct sigcontext {
  14         unsigned int eax;
  15         unsigned int ebx;
  16         unsigned int ecx;
  17         unsigned int edx;
  18         unsigned int ebp;
  19         unsigned int esp;
  20         unsigned int esi;
  21         unsigned int edi;
  22         unsigned int eip;
  23 };
  24
  25 typedef void (* MonoW32ExceptionHandler) (int);
  26 void win32_seh_init(void);
  27 void win32_seh_cleanup(void);
  28 void win32_seh_set_handler(int type, MonoW32ExceptionHandler handler);
  29
  30 #ifndef SIGFPE
  31 #define SIGFPE 4
  32 #endif
  33
  34 #ifndef SIGILL
  35 #define SIGILL 8
  36 #endif
  37
  38 #ifndef SIGSEGV
  39 #define SIGSEGV 11
  40 #endif
  41
  42 LONG CALLBACK seh_handler(EXCEPTION_POINTERS* ep);
  43
  44 #endif /* PLATFORM_WIN32 */
  45
  46 #if defined( __linux__) || defined(__sun) || defined(__APPLE__)
  47 #define MONO_ARCH_USE_SIGACTION
  48 #endif
  49
  50 #ifndef PLATFORM_WIN32
  51
  52 #ifdef HAVE_WORKING_SIGALTSTACK
  53 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
  54 #define MONO_ARCH_USE_SIGACTION
  55
  56 #endif /* HAVE_WORKING_SIGALTSTACK */
  57 #endif /* !PLATFORM_WIN32 */
  58
  59 #define MONO_ARCH_SIGNAL_STACK_SIZE (64 * 1024)
  60
  61 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
  62 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  63
  64 #define MONO_MAX_IREGS 8
  65 #define MONO_MAX_FREGS 6
  66
  67 /* Parameters used by the register allocator */
  68 #define MONO_ARCH_HAS_XP_LOCAL_REGALLOC
  69
  70 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
  71 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
  72
  73 #define MONO_ARCH_CALLEE_FREGS 0
  74 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
  75
  76 #define MONO_ARCH_USE_FPSTACK TRUE
  77 #define MONO_ARCH_FPSTACK_SIZE 6
  78
  79 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc == ' ') || (desc == 'i')) ? -1 : ((desc == 's') ? X86_ECX : ((desc == 'a') ? X86_EAX : ((desc == 'd') ? X86_EDX : ((desc == 'l') ? X86_EAX : -1)))))
  80
  81 #define MONO_ARCH_INST_FIXED_MASK(desc) ((desc == 'y') ? (X86_BYTE_REGS) : 0)
  82
  83 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
  84 #define MONO_ARCH_INST_SREG2_MASK(ins) (((ins [MONO_INST_CLOB] == 'a') || (ins [MONO_INST_CLOB] == 'd')) ? (1 << X86_EDX) : 0)
  85
  86 /*
  87  * L is a generic register pair, while l means eax:rdx
  88  */
  89 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
  90 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
  91
  92 #if defined(__APPLE__)
  93 #define MONO_ARCH_FRAME_ALIGNMENT 16
  94 #else
  95 #define MONO_ARCH_FRAME_ALIGNMENT 4
  96 #endif
  97
  98 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  99  * reproduceable results for benchmarks */
 100 #define MONO_ARCH_CODE_ALIGNMENT 32
 101
 102 #define MONO_ARCH_BASEREG X86_EBP
 103 #define MONO_ARCH_RETREG1 X86_EAX
 104 #define MONO_ARCH_RETREG2 X86_EDX
 105
 106 #define MONO_ARCH_AOT_PLT_OFFSET_REG X86_EAX
 107
 108 #define MONO_ARCH_ENCODE_LREG(r1,r2) (r1 | (r2<<3))
 109
 110 #define inst_dreg_low dreg&7
 111 #define inst_dreg_high dreg>>3
 112 #define inst_sreg1_low sreg1&7
 113 #define inst_sreg1_high sreg1>>3
 114 #define inst_sreg2_low sreg2&7
 115 #define inst_sreg2_high sreg2>>3
 116
 117 struct MonoLMF {
 118         gpointer    previous_lmf;
 119         gpointer    lmf_addr;
 120         MonoMethod *method;
 121         guint32     ebx;
 122         guint32     edi;
 123         guint32     esi;
 124         guint32     ebp;
 125         guint32     eip;
 126 };
 127
 128 typedef void* MonoCompileArch;
 129
 130 #if defined(__FreeBSD__) || defined(__APPLE__)
 131 #include <ucontext.h>
 132 #endif
 133
 134 #if defined(__FreeBSD__)
 135         #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext.mc_eax)
 136         #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext.mc_ebx)
 137         #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext.mc_ecx)
 138         #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext.mc_edx)
 139         #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext.mc_ebp)
 140         #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext.mc_esp)
 141         #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext.mc_esi)
 142         #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext.mc_edi)
 143         #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext.mc_eip)
 144 #elif defined(__APPLE__)
 145         #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext->ss.eax)
 146         #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext->ss.ebx)
 147         #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext->ss.ecx)
 148         #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext->ss.edx)
 149         #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext->ss.ebp)
 150         #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext->ss.esp)
 151         #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext->ss.esi)
 152         #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext->ss.edi)
 153         #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext->ss.eip)
 154 #else
 155         #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext.gregs [REG_EAX])
 156         #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext.gregs [REG_EBX])
 157         #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext.gregs [REG_ECX])
 158         #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext.gregs [REG_EDX])
 159         #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext.gregs [REG_EBP])
 160         #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext.gregs [REG_ESP])
 161         #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext.gregs [REG_ESI])
 162         #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext.gregs [REG_EDI])
 163         #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext.gregs [REG_EIP])
 164 #endif
 165
 166 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
 167 # define SC_EAX sc_eax
 168 # define SC_EBX sc_ebx
 169 # define SC_ECX sc_ecx
 170 # define SC_EDX sc_edx
 171 # define SC_EBP sc_ebp
 172 # define SC_EIP sc_eip
 173 # define SC_ESP sc_esp
 174 # define SC_EDI sc_edi
 175 # define SC_ESI sc_esi
 176 #else
 177 # define SC_EAX eax
 178 # define SC_EBX ebx
 179 # define SC_ECX ecx
 180 # define SC_EDX edx
 181 # define SC_EBP ebp
 182 # define SC_EIP eip
 183 # define SC_ESP esp
 184 # define SC_EDI edi
 185 # define SC_ESI esi
 186 #endif
 187
 188 typedef struct {
 189         guint32 eax;
 190         guint32 ebx;
 191         guint32 ecx;
 192         guint32 edx;
 193         guint32 ebp;
 194         guint32 esp;
 195     guint32 esi;
 196         guint32 edi;
 197         guint32 eip;
 198 } MonoContext;
 199
 200 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (long)(ip); } while (0);
 201 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (long)(bp); } while (0);
 202 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (long)(sp); } while (0);
 203
 204 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
 205 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
 206 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
 207
 208 #ifdef _MSC_VER
 209
 210 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
 211     unsigned int stackptr; \
 212         mono_arch_flush_register_windows (); \
 213     { \
 214            __asm mov stackptr, ebp \
 215     } \
 216         MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
 217         MONO_CONTEXT_SET_BP ((ctx), stackptr); \
 218 } while (0)
 219
 220 #else
 221
 222 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 223                 mono_arch_flush_register_windows ();    \
 224                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 225                 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0));       \
 226         } while (0)
 227
 228 #endif
 229
 230 #define MONO_ARCH_BIGMUL_INTRINS 1
 231 #define MONO_ARCH_NEED_DIV_CHECK 1
 232 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
 233 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
 234 #define MONO_ARCH_HAVE_PIC_AOT 1
 235 #define MONO_ARCH_NEED_GOT_VAR 1
 236 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
 237 #define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
 238 #define MONO_ARCH_ENABLE_MONO_LMF_VAR 1
 239 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN 1
 240 #define MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE 1
 241 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
 242 #define MONO_ARCH_HAVE_CREATE_VARS 1
 243
 244 #endif /* __MONO_MINI_X86_H__ */
 245