1 #ifndef __MONO_MINI_X86_H__
2 #define __MONO_MINI_X86_H__
4 #include <mono/arch/x86/x86-codegen.h>
7 /* use SIG* defines if possible */
12 /* sigcontext surrogate */
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);
42 LONG CALLBACK seh_handler(EXCEPTION_POINTERS* ep);
44 #endif /* PLATFORM_WIN32 */
46 #ifdef sun // Solaris x86
47 # define MONO_ARCH_USE_SIGACTION 1
49 unsigned short gs, __gsh;
50 unsigned short fs, __fsh;
51 unsigned short es, __esh;
52 unsigned short ds, __dsh;
64 unsigned short cs, __csh;
66 unsigned long esp_at_signal;
67 unsigned short ss, __ssh;
68 unsigned long fpstate[95];
69 unsigned long filler[5];
71 #endif // sun, Solaris x86
74 #define MONO_ARCH_USE_SIGACTION
77 #ifndef PLATFORM_WIN32
79 #ifdef HAVE_WORKING_SIGALTSTACK
80 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
81 #define MONO_ARCH_USE_SIGACTION
83 /* FreeBSD and NetBSD need SA_STACK and MAP_ANON re-definitions */
84 # if defined(__FreeBSD__) || defined(__NetBSD__)
86 # define SA_STACK SA_ONSTACK
88 # ifndef MAP_ANONYMOUS
89 # define MAP_ANONYMOUS MAP_ANON
93 #endif /* HAVE_WORKING_SIGALTSTACK */
94 #endif /* !PLATFORM_WIN32 */
96 #define MONO_ARCH_SIGNAL_STACK_SIZE (64 * 1024)
98 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
99 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
101 #define MONO_MAX_IREGS 8
102 #define MONO_MAX_FREGS 6
104 /* Parameters used by the register allocator */
105 #define MONO_ARCH_HAS_XP_LOCAL_REGALLOC
107 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
108 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
110 #define MONO_ARCH_CALLEE_FREGS 0
111 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
113 #define MONO_ARCH_USE_FPSTACK TRUE
114 #define MONO_ARCH_FPSTACK_SIZE 6
116 /* FIXME: Don't constrain byte regs to eax */
117 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 's') ? X86_ECX : ((desc == 'a') ? X86_EAX : ((desc == 'd') ? X86_EDX : ((desc == 'y') ? X86_EAX : ((desc == 'l') ? X86_EAX : -1)))))
119 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
120 #define MONO_ARCH_INST_SREG2_MASK(ins) (((ins [MONO_INST_CLOB] == 'a') || (ins [MONO_INST_CLOB] == 'd')) ? (1 << X86_EDX) : 0)
123 * L is a generic register pair, while l means eax:rdx
125 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
126 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
128 #define MONO_ARCH_FRAME_ALIGNMENT 4
130 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
131 * reproduceable results for benchmarks */
132 #define MONO_ARCH_CODE_ALIGNMENT 32
134 #define MONO_ARCH_BASEREG X86_EBP
135 #define MONO_ARCH_RETREG1 X86_EAX
136 #define MONO_ARCH_RETREG2 X86_EDX
138 #define MONO_ARCH_ENCODE_LREG(r1,r2) (r1 | (r2<<3))
140 #define inst_dreg_low dreg&7
141 #define inst_dreg_high dreg>>3
142 #define inst_sreg1_low sreg1&7
143 #define inst_sreg1_high sreg1>>3
144 #define inst_sreg2_low sreg2&7
145 #define inst_sreg2_high sreg2>>3
148 gpointer previous_lmf;
158 typedef void* MonoCompileArch;
160 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
161 # define SC_EAX sc_eax
162 # define SC_EBX sc_ebx
163 # define SC_ECX sc_ecx
164 # define SC_EDX sc_edx
165 # define SC_EBP sc_ebp
166 # define SC_EIP sc_eip
167 # define SC_ESP sc_esp
168 # define SC_EDI sc_edi
169 # define SC_ESI sc_esi
194 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (long)(ip); } while (0);
195 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (long)(bp); } while (0);
196 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (long)(sp); } while (0);
198 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
199 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
200 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
204 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
205 unsigned int stackptr; \
206 mono_arch_flush_register_windows (); \
208 __asm mov stackptr, ebp \
210 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
211 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
214 #define MONO_INIT_CONTEXT_FROM_CALLER(ctx) do { \
215 unsigned int stackptr, retaddr; \
217 __asm mov stackptr, ebp \
218 __asm mov eax, DWORD PTR [ebp + 4] \
219 __asm mov retaddr, eax \
221 MONO_CONTEXT_SET_IP ((ctx), retaddr); \
222 /* FIXME: NOT WORKING -- THIS IS __builtin_frame_address (0) NOT (1) */ \
223 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
228 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
229 mono_arch_flush_register_windows (); \
230 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
231 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
236 #define MONO_ARCH_BIGMUL_INTRINS 1
237 #define MONO_ARCH_NEED_DIV_CHECK 1
238 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
239 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
240 #define MONO_ARCH_HAVE_PIC_AOT 1
241 #define MONO_ARCH_NEED_GOT_VAR 1
242 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
243 #define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
244 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN 1
245 #define MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE 1
246 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
247 #define MONO_ARCH_HAVE_CREATE_VARS 1
249 #endif /* __MONO_MINI_X86_H__ */