1 #ifndef __MONO_MINI_X86_H__
2 #define __MONO_MINI_X86_H__
4 #include <mono/arch/x86/x86-codegen.h>
5 #include <mono/utils/mono-sigcontext.h>
6 #include <mono/utils/mono-context.h>
8 #ifdef __native_client_codegen__
9 #define kNaClAlignmentX86 32
10 #define kNaClAlignmentMaskX86 (kNaClAlignmentX86 - 1)
12 #define kNaClLengthOfCallImm kx86NaClLengthOfCallImm
17 /* use SIG* defines if possible */
22 /* sigcontext surrogate */
35 typedef void (* MonoW32ExceptionHandler) (int _dummy, EXCEPTION_RECORD *info, void *context);
36 void win32_seh_init(void);
37 void win32_seh_cleanup(void);
38 void win32_seh_set_handler(int type, MonoW32ExceptionHandler handler);
52 LONG CALLBACK seh_handler(EXCEPTION_POINTERS* ep);
54 #endif /* HOST_WIN32 */
60 #endif /* __HAIKU__ */
62 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__) || \
63 defined(__FreeBSD__) || defined(__OpenBSD__)
64 #define MONO_ARCH_USE_SIGACTION
67 #if defined(__native_client__)
68 #undef MONO_ARCH_USE_SIGACTION
73 #ifdef HAVE_WORKING_SIGALTSTACK
75 * solaris doesn't have pthread_getattr_np () needed by the sigaltstack setup
79 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
81 /* Haiku doesn't have SA_SIGINFO */
83 #define MONO_ARCH_USE_SIGACTION
84 #endif /* __HAIKU__ */
86 #endif /* HAVE_WORKING_SIGALTSTACK */
87 #endif /* !HOST_WIN32 */
89 #define MONO_ARCH_SUPPORT_SIMD_INTRINSICS 1
90 #define MONO_ARCH_SUPPORT_TASKLETS 1
93 #define MONO_ARCH_SIMD_INTRINSICS 1
94 #define MONO_ARCH_NEED_SIMD_BANK 1
97 /* we should lower this size and make sure we don't call heavy stack users in the segv handler */
98 #define MONO_ARCH_SIGNAL_STACK_SIZE (16 * 1024)
99 #define MONO_ARCH_HAVE_RESTORE_STACK_SUPPORT 1
101 #define MONO_ARCH_CPU_SPEC x86_desc
103 #define MONO_MAX_IREGS 8
104 #define MONO_MAX_FREGS 8
105 #define MONO_MAX_XREGS 8
107 /* Parameters used by the register allocator */
108 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
109 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
111 #define MONO_ARCH_CALLEE_FREGS (0xff & ~(regmask (MONO_ARCH_FPSTACK_SIZE)))
112 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
114 /* All registers are clobered by a call */
115 #define MONO_ARCH_CALLEE_XREGS (0xff & ~(regmask (MONO_MAX_XREGS)))
116 #define MONO_ARCH_CALLEE_SAVED_XREGS 0
118 #define MONO_ARCH_USE_FPSTACK TRUE
119 #define MONO_ARCH_FPSTACK_SIZE 6
121 #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)))))
123 #define MONO_ARCH_INST_FIXED_MASK(desc) ((desc == 'y') ? (X86_BYTE_REGS) : 0)
125 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
127 * Originally this contained X86_EDX for div/rem opcodes, but that led to unsolvable
128 * situations since there are only 3 usable registers for local register allocation.
129 * Instead, we handle the sreg2==edx case in the opcodes.
131 #define MONO_ARCH_INST_SREG2_MASK(ins) 0
134 * L is a generic register pair, while l means eax:rdx
136 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
137 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
139 /* must be at a power of 2 and >= 8 */
140 #define MONO_ARCH_FRAME_ALIGNMENT 16
142 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
143 * reproduceable results for benchmarks */
144 #define MONO_ARCH_CODE_ALIGNMENT 32
146 #define MONO_ARCH_RETREG1 X86_EAX
147 #define MONO_ARCH_RETREG2 X86_EDX
149 /*This is the max size of the locals area of a given frame. I think 1MB is a safe default for now*/
150 #define MONO_ARCH_MAX_FRAME_SIZE 0x100000
152 /*This is how much a try block must be extended when is is preceeded by a Monitor.Enter() call.
153 It's 4 bytes as this is how many bytes + 1 that 'add 0x10, %esp' takes. It is used to pop the arguments from
154 the monitor.enter call and must be already protected.*/
155 #define MONO_ARCH_MONITOR_ENTER_ADJUSTMENT 4
159 * If the lowest bit is set to 1, then this is a trampoline LMF frame.
160 * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
161 * the other fields are not valid.
163 guint32 previous_lmf;
165 /* Only set in trampoline LMF frames */
167 /* Only set in trampoline LMF frames */
177 gboolean need_stack_frame_inited;
178 gboolean need_stack_frame;
181 #define MONO_CONTEXT_SET_LLVM_EXC_REG(ctx, exc) do { (ctx)->eax = (gsize)exc; } while (0)
185 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
186 unsigned int stackptr; \
187 mono_arch_flush_register_windows (); \
189 __asm mov stackptr, ebp \
191 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
192 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
193 MONO_CONTEXT_SET_SP ((ctx), stackptr); \
198 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
199 mono_arch_flush_register_windows (); \
200 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
201 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
202 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
207 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
209 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
210 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
212 #define MONO_ARCH_BIGMUL_INTRINS 1
213 #define MONO_ARCH_NEED_DIV_CHECK 1
214 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
215 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
216 #define MONO_ARCH_NEED_GOT_VAR 1
217 #if !defined(__APPLE__)
218 #define MONO_ARCH_ENABLE_MONO_LMF_VAR 1
220 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
221 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
222 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
223 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
224 #define MONO_ARCH_HAVE_IMT 1
225 #define MONO_ARCH_HAVE_TLS_GET (mono_x86_have_tls_get ())
226 #define MONO_ARCH_IMT_REG X86_EDX
227 #define MONO_ARCH_VTABLE_REG X86_EDX
228 #define MONO_ARCH_RGCTX_REG X86_EDX
229 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
230 #define MONO_ARCH_HAVE_LIVERANGE_OPS 1
231 #define MONO_ARCH_HAVE_XP_UNWIND 1
232 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1
233 #if defined(__linux__) || defined (__APPLE__)
234 #define MONO_ARCH_MONITOR_OBJECT_REG X86_EAX
236 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
237 #if !defined (__APPLE__) || defined(__native_client_codegen__)
238 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
240 #define MONO_ARCH_GOT_REG X86_EBX
241 #define MONO_ARCH_HAVE_GET_TRAMPOLINES 1
243 #define MONO_ARCH_HAVE_CMOV_OPS 1
245 #ifdef MONO_ARCH_SIMD_INTRINSICS
246 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
249 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
251 #define MONO_ARCH_AOT_SUPPORTED 1
253 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
255 #define MONO_ARCH_GSHARED_SUPPORTED 1
256 #define MONO_ARCH_HAVE_LLVM_IMT_TRAMPOLINE 1
257 #define MONO_ARCH_LLVM_SUPPORTED 1
258 #define MONO_ARCH_THIS_AS_FIRST_ARG 1
260 #if defined(MONO_ARCH_USE_SIGACTION) || defined(TARGET_WIN32)
261 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
264 #define MONO_ARCH_HAVE_EXCEPTIONS_INIT 1
265 #define MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD 1
267 #define MONO_ARCH_HAVE_CARD_TABLE_WBARRIER 1
268 #define MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX 1
269 #define MONO_ARCH_GC_MAPS_SUPPORTED 1
272 mono_x86_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig) MONO_INTERNAL;
274 #define MONO_ARCH_USE_OP_TAIL_CALL(caller_sig, callee_sig) mono_x86_tail_call_supported (caller_sig, callee_sig)
276 /* Used for optimization, not complete */
277 #define MONO_ARCH_IS_OP_MEMBASE(opcode) ((opcode) == OP_X86_PUSH_MEMBASE)
279 #define MONO_ARCH_EMIT_BOUNDS_CHECK(cfg, array_reg, offset, index_reg) do { \
281 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_REG); \
282 inst->inst_basereg = array_reg; \
283 inst->inst_offset = offset; \
284 inst->sreg2 = index_reg; \
285 MONO_ADD_INS ((cfg)->cbb, inst); \
286 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
292 } MonoBreakpointInfo;
294 extern MonoBreakpointInfo mono_breakpoint_info [MONO_BREAKPOINT_ARRAY_SIZE];
297 mono_x86_emit_tls_get (guint8* code, int dreg, int tls_offset) MONO_INTERNAL;
300 mono_x86_get_this_arg_offset (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig) MONO_INTERNAL;
303 mono_x86_have_tls_get (void) MONO_INTERNAL;
306 mono_x86_throw_exception (mgreg_t *regs, MonoObject *exc,
307 mgreg_t eip, gboolean rethrow) MONO_INTERNAL;
310 mono_x86_throw_corlib_exception (mgreg_t *regs, guint32 ex_token_index,
311 mgreg_t eip, gint32 pc_offset) MONO_INTERNAL;
314 mono_x86_patch (unsigned char* code, gpointer target) MONO_INTERNAL;
316 #endif /* __MONO_MINI_X86_H__ */