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>
8 /* use SIG* defines if possible */
13 /* sigcontext surrogate */
26 typedef void (* MonoW32ExceptionHandler) (int _dummy, EXCEPTION_RECORD *info, void *context);
27 void win32_seh_init(void);
28 void win32_seh_cleanup(void);
29 void win32_seh_set_handler(int type, MonoW32ExceptionHandler handler);
43 LONG CALLBACK seh_handler(EXCEPTION_POINTERS* ep);
45 #endif /* HOST_WIN32 */
51 #endif /* __HAIKU__ */
53 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__) || \
54 defined(__FreeBSD__) || defined(__OpenBSD__)
55 #define MONO_ARCH_USE_SIGACTION
58 #if defined(__native_client__)
59 #undef MONO_ARCH_USE_SIGACTION
62 #if defined(__native_client_codegen__) || defined(__native_client__)
63 #define NACL_SIZE(a, b) (b)
65 #define NACL_SIZE(a, b) (a)
70 #ifdef HAVE_WORKING_SIGALTSTACK
72 * solaris doesn't have pthread_getattr_np () needed by the sigaltstack setup
76 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
78 /* Haiku doesn't have SA_SIGINFO */
80 #define MONO_ARCH_USE_SIGACTION
81 #endif /* __HAIKU__ */
83 #endif /* HAVE_WORKING_SIGALTSTACK */
84 #endif /* !HOST_WIN32 */
86 #define MONO_ARCH_SUPPORT_SIMD_INTRINSICS 1
87 #define MONO_ARCH_SUPPORT_TASKLETS 1
90 #define MONO_ARCH_SIMD_INTRINSICS 1
91 #define MONO_ARCH_NEED_SIMD_BANK 1
94 /* we should lower this size and make sure we don't call heavy stack users in the segv handler */
95 #define MONO_ARCH_SIGNAL_STACK_SIZE (16 * 1024)
96 #define MONO_ARCH_HAVE_RESTORE_STACK_SUPPORT 1
98 #define MONO_ARCH_CPU_SPEC x86_desc
100 #define MONO_MAX_IREGS 8
101 #define MONO_MAX_FREGS 8
102 #define MONO_MAX_XREGS 8
104 /* Parameters used by the register allocator */
105 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
106 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
108 #define MONO_ARCH_CALLEE_FREGS (0xff & ~(regmask (MONO_ARCH_FPSTACK_SIZE)))
109 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
111 /* All registers are clobered by a call */
112 #define MONO_ARCH_CALLEE_XREGS (0xff & ~(regmask (MONO_MAX_XREGS)))
113 #define MONO_ARCH_CALLEE_SAVED_XREGS 0
115 #define MONO_ARCH_USE_FPSTACK TRUE
116 #define MONO_ARCH_FPSTACK_SIZE 6
118 #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)))))
120 #define MONO_ARCH_INST_FIXED_MASK(desc) ((desc == 'y') ? (X86_BYTE_REGS) : 0)
122 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
124 * Originally this contained X86_EDX for div/rem opcodes, but that led to unsolvable
125 * situations since there are only 3 usable registers for local register allocation.
126 * Instead, we handle the sreg2==edx case in the opcodes.
128 #define MONO_ARCH_INST_SREG2_MASK(ins) 0
131 * L is a generic register pair, while l means eax:rdx
133 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
134 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
136 /* must be at a power of 2 and >= 8 */
137 #define MONO_ARCH_FRAME_ALIGNMENT 16
139 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
140 * reproduceable results for benchmarks */
141 #define MONO_ARCH_CODE_ALIGNMENT 32
143 #define MONO_ARCH_RETREG1 X86_EAX
144 #define MONO_ARCH_RETREG2 X86_EDX
146 /*This is the max size of the locals area of a given frame. I think 1MB is a safe default for now*/
147 #define MONO_ARCH_MAX_FRAME_SIZE 0x100000
151 * If the lowest bit is set to 1, then this is a trampoline LMF frame.
152 * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
153 * the other fields are not valid.
155 guint32 previous_lmf;
157 /* Only set in trampoline LMF frames */
159 /* Only set in trampoline LMF frames */
169 gboolean need_stack_frame_inited;
170 gboolean need_stack_frame;
173 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
174 # define SC_EAX sc_eax
175 # define SC_EBX sc_ebx
176 # define SC_ECX sc_ecx
177 # define SC_EDX sc_edx
178 # define SC_EBP sc_ebp
179 # define SC_EIP sc_eip
180 # define SC_ESP sc_esp
181 # define SC_EDI sc_edi
182 # define SC_ESI sc_esi
183 #elif defined(__HAIKU__)
184 # define SC_EAX regs.eax
185 # define SC_EBX regs._reserved_2[2]
186 # define SC_ECX regs.ecx
187 # define SC_EDX regs.edx
188 # define SC_EBP regs.ebp
189 # define SC_EIP regs.eip
190 # define SC_ESP regs.esp
191 # define SC_EDI regs._reserved_2[0]
192 # define SC_ESI regs._reserved_2[1]
217 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (long)(ip); } while (0);
218 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (long)(bp); } while (0);
219 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (long)(sp); } while (0);
221 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
222 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
223 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
225 #define MONO_CONTEXT_SET_LLVM_EXC_REG(ctx, exc) do { (ctx)->eax = (gsize)exc; } while (0)
229 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
230 unsigned int stackptr; \
231 mono_arch_flush_register_windows (); \
233 __asm mov stackptr, ebp \
235 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
236 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
237 MONO_CONTEXT_SET_SP ((ctx), stackptr); \
242 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
243 mono_arch_flush_register_windows (); \
244 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
245 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
246 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
251 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
253 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
254 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
256 #define MONO_ARCH_BIGMUL_INTRINS 1
257 #define MONO_ARCH_NEED_DIV_CHECK 1
258 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
259 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
260 #define MONO_ARCH_NEED_GOT_VAR 1
261 #if !defined(__APPLE__)
262 #define MONO_ARCH_ENABLE_MONO_LMF_VAR 1
264 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
265 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
266 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
267 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
268 #define MONO_ARCH_HAVE_IMT 1
269 #define MONO_ARCH_HAVE_TLS_GET (mono_x86_have_tls_get ())
270 #define MONO_ARCH_IMT_REG X86_EDX
271 #define MONO_ARCH_VTABLE_REG X86_EDX
272 #define MONO_ARCH_RGCTX_REG X86_EDX
273 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
274 #define MONO_ARCH_HAVE_LIVERANGE_OPS 1
275 #define MONO_ARCH_HAVE_XP_UNWIND 1
276 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1
277 #if defined(__linux__)
278 #define MONO_ARCH_MONITOR_OBJECT_REG X86_EAX
280 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
281 #if !defined (__APPLE__) || defined(__native_client_codegen__)
282 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
284 #define MONO_ARCH_GOT_REG X86_EBX
285 #define MONO_ARCH_HAVE_GET_TRAMPOLINES 1
287 #define MONO_ARCH_HAVE_CMOV_OPS 1
289 #ifdef MONO_ARCH_SIMD_INTRINSICS
290 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
293 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
295 #define MONO_ARCH_AOT_SUPPORTED 1
297 #if defined(__linux__) || defined(__sun)
298 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
301 #define MONO_ARCH_GSHARED_SUPPORTED 1
302 #define MONO_ARCH_HAVE_LLVM_IMT_TRAMPOLINE 1
303 #define MONO_ARCH_LLVM_SUPPORTED 1
304 #define MONO_ARCH_THIS_AS_FIRST_ARG 1
306 #if defined(MONO_ARCH_USE_SIGACTION) || defined(TARGET_WIN32)
307 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
310 #define MONO_ARCH_HAVE_EXCEPTIONS_INIT 1
311 #define MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD 1
313 #define MONO_ARCH_HAVE_CARD_TABLE_WBARRIER 1
314 #define MONO_ARCH_GC_MAPS_SUPPORTED 1
317 mono_x86_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig) MONO_INTERNAL;
319 #define MONO_ARCH_USE_OP_TAIL_CALL(caller_sig, callee_sig) mono_x86_tail_call_supported (caller_sig, callee_sig)
321 /* Used for optimization, not complete */
322 #define MONO_ARCH_IS_OP_MEMBASE(opcode) ((opcode) == OP_X86_PUSH_MEMBASE)
324 #define MONO_ARCH_EMIT_BOUNDS_CHECK(cfg, array_reg, offset, index_reg) do { \
326 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_REG); \
327 inst->inst_basereg = array_reg; \
328 inst->inst_offset = offset; \
329 inst->sreg2 = index_reg; \
330 MONO_ADD_INS ((cfg)->cbb, inst); \
331 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
337 } MonoBreakpointInfo;
339 extern MonoBreakpointInfo mono_breakpoint_info [MONO_BREAKPOINT_ARRAY_SIZE];
342 mono_x86_emit_tls_get (guint8* code, int dreg, int tls_offset) MONO_INTERNAL;
345 mono_x86_get_this_arg_offset (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig) MONO_INTERNAL;
348 mono_x86_have_tls_get (void) MONO_INTERNAL;
351 mono_x86_throw_exception (mgreg_t *regs, MonoObject *exc,
352 mgreg_t eip, gboolean rethrow) MONO_INTERNAL;
355 mono_x86_throw_corlib_exception (mgreg_t *regs, guint32 ex_token_index,
356 mgreg_t eip, gint32 pc_offset) MONO_INTERNAL;
359 mono_x86_patch (unsigned char* code, gpointer target) MONO_INTERNAL;
361 #endif /* __MONO_MINI_X86_H__ */