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 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__)
47 #define MONO_ARCH_USE_SIGACTION
50 #ifndef PLATFORM_WIN32
52 #ifdef HAVE_WORKING_SIGALTSTACK
54 * solaris doesn't have pthread_getattr_np () needed by the sigaltstack setup
58 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
60 #define MONO_ARCH_USE_SIGACTION
62 #endif /* HAVE_WORKING_SIGALTSTACK */
63 #endif /* !PLATFORM_WIN32 */
65 /* we should lower this size and make sure we don't call heavy stack users in the segv handler */
66 #define MONO_ARCH_SIGNAL_STACK_SIZE (16 * 1024)
68 #define MONO_ARCH_CPU_SPEC x86_desc
70 #define MONO_MAX_IREGS 8
71 #define MONO_MAX_FREGS 8
73 /* Parameters used by the register allocator */
74 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
75 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
77 #define MONO_ARCH_CALLEE_FREGS (0xff & ~(regmask (MONO_ARCH_FPSTACK_SIZE)))
78 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
80 #define MONO_ARCH_USE_FPSTACK TRUE
81 #define MONO_ARCH_FPSTACK_SIZE 6
83 #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)))))
85 #define MONO_ARCH_INST_FIXED_MASK(desc) ((desc == 'y') ? (X86_BYTE_REGS) : 0)
87 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
89 * Originally this contained X86_EDX for div/rem opcodes, but that led to unsolvable
90 * situations since there are only 3 usable registers for local register allocation.
91 * Instead, we handle the sreg2==edx case in the opcodes.
93 #define MONO_ARCH_INST_SREG2_MASK(ins) 0
96 * L is a generic register pair, while l means eax:rdx
98 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
99 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
101 #define MONO_ARCH_FRAME_ALIGNMENT 4
103 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
104 * reproduceable results for benchmarks */
105 #define MONO_ARCH_CODE_ALIGNMENT 32
107 #define MONO_ARCH_BASEREG X86_EBP
108 #define MONO_ARCH_RETREG1 X86_EAX
109 #define MONO_ARCH_RETREG2 X86_EDX
111 #define MONO_ARCH_ENCODE_LREG(r1,r2) (r1 | (r2<<3))
113 #define inst_dreg_low dreg&7
114 #define inst_dreg_high dreg>>3
115 #define inst_sreg1_low sreg1&7
116 #define inst_sreg1_high sreg1>>3
117 #define inst_sreg2_low sreg2&7
118 #define inst_sreg2_high sreg2>>3
121 /* Offset by 1 if this is a trampoline LMF frame */
122 guint32 previous_lmf;
124 /* Only set in trampoline LMF frames */
126 /* Only set in trampoline LMF frames */
135 typedef void* MonoCompileArch;
137 #if defined(__FreeBSD__) || defined(__APPLE__)
138 #include <ucontext.h>
141 #if defined(__FreeBSD__)
142 #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext.mc_eax)
143 #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext.mc_ebx)
144 #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext.mc_ecx)
145 #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext.mc_edx)
146 #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext.mc_ebp)
147 #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext.mc_esp)
148 #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext.mc_esi)
149 #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext.mc_edi)
150 #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext.mc_eip)
151 #elif defined(__APPLE__) && defined(_STRUCT_MCONTEXT)
152 #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext->__ss.__eax)
153 #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext->__ss.__ebx)
154 #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext->__ss.__ecx)
155 #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext->__ss.__edx)
156 #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext->__ss.__ebp)
157 #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext->__ss.__esp)
158 #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext->__ss.__esi)
159 #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext->__ss.__edi)
160 #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext->__ss.__eip)
161 #elif defined(__APPLE__) && !defined(_STRUCT_MCONTEXT)
162 #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext->ss.eax)
163 #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext->ss.ebx)
164 #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext->ss.ecx)
165 #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext->ss.edx)
166 #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext->ss.ebp)
167 #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext->ss.esp)
168 #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext->ss.esi)
169 #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext->ss.edi)
170 #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext->ss.eip)
171 #elif defined(__NetBSD__)
172 #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EAX])
173 #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EBX])
174 #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext.__gregs [_REG_ECX])
175 #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EDX])
176 #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EBP])
177 #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext.__gregs [_REG_ESP])
178 #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext.__gregs [_REG_ESI])
179 #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EDI])
180 #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext.__gregs [_REG_EIP])
182 #define UCONTEXT_REG_EAX(ctx) ((ctx)->uc_mcontext.gregs [REG_EAX])
183 #define UCONTEXT_REG_EBX(ctx) ((ctx)->uc_mcontext.gregs [REG_EBX])
184 #define UCONTEXT_REG_ECX(ctx) ((ctx)->uc_mcontext.gregs [REG_ECX])
185 #define UCONTEXT_REG_EDX(ctx) ((ctx)->uc_mcontext.gregs [REG_EDX])
186 #define UCONTEXT_REG_EBP(ctx) ((ctx)->uc_mcontext.gregs [REG_EBP])
187 #define UCONTEXT_REG_ESP(ctx) ((ctx)->uc_mcontext.gregs [REG_ESP])
188 #define UCONTEXT_REG_ESI(ctx) ((ctx)->uc_mcontext.gregs [REG_ESI])
189 #define UCONTEXT_REG_EDI(ctx) ((ctx)->uc_mcontext.gregs [REG_EDI])
190 #define UCONTEXT_REG_EIP(ctx) ((ctx)->uc_mcontext.gregs [REG_EIP])
193 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
194 # define SC_EAX sc_eax
195 # define SC_EBX sc_ebx
196 # define SC_ECX sc_ecx
197 # define SC_EDX sc_edx
198 # define SC_EBP sc_ebp
199 # define SC_EIP sc_eip
200 # define SC_ESP sc_esp
201 # define SC_EDI sc_edi
202 # define SC_ESI sc_esi
227 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (long)(ip); } while (0);
228 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (long)(bp); } while (0);
229 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (long)(sp); } while (0);
231 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
232 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
233 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
237 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
238 unsigned int stackptr; \
239 mono_arch_flush_register_windows (); \
241 __asm mov stackptr, ebp \
243 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
244 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
245 MONO_CONTEXT_SET_SP ((ctx), stackptr); \
250 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
251 mono_arch_flush_register_windows (); \
252 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
253 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
254 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
259 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
260 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
262 #define MONO_ARCH_BIGMUL_INTRINS 1
263 #define MONO_ARCH_NEED_DIV_CHECK 1
264 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
265 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
266 #define MONO_ARCH_NEED_GOT_VAR 1
267 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
268 #define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
269 #define MONO_ARCH_ENABLE_MONO_LMF_VAR 1
270 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN 1
271 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
272 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
273 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
274 #define MONO_ARCH_HAVE_ATOMIC_CAS_IMM 1
275 #define MONO_ARCH_HAVE_IMT 1
276 #define MONO_ARCH_HAVE_TLS_GET 1
277 #define MONO_ARCH_IMT_REG X86_EDX
278 #define MONO_ARCH_VTABLE_REG X86_EDX
279 #define MONO_ARCH_COMMON_VTABLE_TRAMPOLINE 1
280 #define MONO_ARCH_RGCTX_REG X86_EDX
281 #define MONO_ARCH_ENABLE_NORMALIZE_OPCODES 1
283 #define MONO_ARCH_HAVE_CMOV_OPS 1
285 #if !defined(__APPLE__)
286 #define MONO_ARCH_AOT_SUPPORTED 1
289 /* Used for optimization, not complete */
290 #define MONO_ARCH_IS_OP_MEMBASE(opcode) ((opcode) == OP_X86_PUSH_MEMBASE)
292 #define MONO_ARCH_EMIT_BOUNDS_CHECK(cfg, array_reg, offset, index_reg) do { \
294 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_REG); \
295 inst->inst_basereg = array_reg; \
296 inst->inst_offset = offset; \
297 inst->sreg2 = index_reg; \
298 MONO_ADD_INS ((cfg)->cbb, inst); \
299 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
305 } MonoBreakpointInfo;
307 extern MonoBreakpointInfo mono_breakpoint_info [MONO_BREAKPOINT_ARRAY_SIZE];
309 #endif /* __MONO_MINI_X86_H__ */