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 */
47 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__) || \
48 defined(__FreeBSD__) || defined(__OpenBSD__)
49 #define MONO_ARCH_USE_SIGACTION
54 #ifdef HAVE_WORKING_SIGALTSTACK
56 * solaris doesn't have pthread_getattr_np () needed by the sigaltstack setup
60 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK
62 #define MONO_ARCH_USE_SIGACTION
64 #endif /* HAVE_WORKING_SIGALTSTACK */
65 #endif /* !HOST_WIN32 */
67 #define MONO_ARCH_SUPPORT_SIMD_INTRINSICS 1
68 #define MONO_ARCH_SUPPORT_TASKLETS 1
71 #define MONO_ARCH_SIMD_INTRINSICS 1
72 #define MONO_ARCH_NEED_SIMD_BANK 1
75 /* we should lower this size and make sure we don't call heavy stack users in the segv handler */
76 #define MONO_ARCH_SIGNAL_STACK_SIZE (16 * 1024)
77 #define MONO_ARCH_HAVE_RESTORE_STACK_SUPPORT 1
79 #define MONO_ARCH_CPU_SPEC x86_desc
81 #define MONO_MAX_IREGS 8
82 #define MONO_MAX_FREGS 8
83 #define MONO_MAX_XREGS 8
85 /* Parameters used by the register allocator */
86 #define MONO_ARCH_CALLEE_REGS X86_CALLEE_REGS
87 #define MONO_ARCH_CALLEE_SAVED_REGS X86_CALLER_REGS
89 #define MONO_ARCH_CALLEE_FREGS (0xff & ~(regmask (MONO_ARCH_FPSTACK_SIZE)))
90 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
92 /* All registers are clobered by a call */
93 #define MONO_ARCH_CALLEE_XREGS (0xff & ~(regmask (MONO_MAX_XREGS)))
94 #define MONO_ARCH_CALLEE_SAVED_XREGS 0
96 #define MONO_ARCH_USE_FPSTACK TRUE
97 #define MONO_ARCH_FPSTACK_SIZE 6
99 #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)))))
101 #define MONO_ARCH_INST_FIXED_MASK(desc) ((desc == 'y') ? (X86_BYTE_REGS) : 0)
103 /* RDX is clobbered by the opcode implementation before accessing sreg2 */
105 * Originally this contained X86_EDX for div/rem opcodes, but that led to unsolvable
106 * situations since there are only 3 usable registers for local register allocation.
107 * Instead, we handle the sreg2==edx case in the opcodes.
109 #define MONO_ARCH_INST_SREG2_MASK(ins) 0
112 * L is a generic register pair, while l means eax:rdx
114 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
115 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? X86_EDX : -1)
117 /* must be at a power of 2 and >= 8 */
118 #define MONO_ARCH_FRAME_ALIGNMENT 16
120 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
121 * reproduceable results for benchmarks */
122 #define MONO_ARCH_CODE_ALIGNMENT 32
124 #define MONO_ARCH_RETREG1 X86_EAX
125 #define MONO_ARCH_RETREG2 X86_EDX
127 /*This is the max size of the locals area of a given frame. I think 1MB is a safe default for now*/
128 #define MONO_ARCH_MAX_FRAME_SIZE 0x100000
132 * If the lowest bit is set to 1, then this is a trampoline LMF frame.
133 * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
134 * the other fields are not valid.
136 guint32 previous_lmf;
138 /* Only set in trampoline LMF frames */
140 /* Only set in trampoline LMF frames */
150 gboolean need_stack_frame_inited;
151 gboolean need_stack_frame;
154 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
155 # define SC_EAX sc_eax
156 # define SC_EBX sc_ebx
157 # define SC_ECX sc_ecx
158 # define SC_EDX sc_edx
159 # define SC_EBP sc_ebp
160 # define SC_EIP sc_eip
161 # define SC_ESP sc_esp
162 # define SC_EDI sc_edi
163 # define SC_ESI sc_esi
188 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (long)(ip); } while (0);
189 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (long)(bp); } while (0);
190 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (long)(sp); } while (0);
192 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
193 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
194 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
196 #define MONO_CONTEXT_SET_LLVM_EXC_REG(ctx, exc) do { (ctx)->eax = (gsize)exc; } while (0)
200 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx, start_func) do { \
201 unsigned int stackptr; \
202 mono_arch_flush_register_windows (); \
204 __asm mov stackptr, ebp \
206 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
207 MONO_CONTEXT_SET_BP ((ctx), stackptr); \
208 MONO_CONTEXT_SET_SP ((ctx), stackptr); \
213 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
214 mono_arch_flush_register_windows (); \
215 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
216 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
217 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
223 * This structure is an extension of MonoLMF and contains extra information.
227 gboolean debugger_invoke;
228 MonoContext ctx; /* if debugger_invoke is TRUE */
231 /* Enables OP_LSHL, OP_LSHL_IMM, OP_LSHR, OP_LSHR_IMM, OP_LSHR_UN, OP_LSHR_UN_IMM */
232 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
234 #define MONO_ARCH_BIGMUL_INTRINS 1
235 #define MONO_ARCH_NEED_DIV_CHECK 1
236 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
237 #define MONO_ARCH_HAVE_INVALIDATE_METHOD 1
238 #define MONO_ARCH_NEED_GOT_VAR 1
239 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
240 #define MONO_ARCH_ENABLE_MONO_LMF_VAR 1
241 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1
242 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
243 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
244 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
245 #define MONO_ARCH_HAVE_IMT 1
246 #define MONO_ARCH_HAVE_TLS_GET (mono_x86_have_tls_get ())
247 #define MONO_ARCH_IMT_REG X86_EDX
248 #define MONO_ARCH_VTABLE_REG X86_EDX
249 #define MONO_ARCH_RGCTX_REG X86_EDX
250 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
251 #define MONO_ARCH_HAVE_LIVERANGE_OPS 1
252 #define MONO_ARCH_HAVE_XP_UNWIND 1
253 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1
254 #if defined(__linux__) && !defined(HAVE_MOVING_COLLECTOR)
255 #define MONO_ARCH_MONITOR_OBJECT_REG X86_EAX
257 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
259 #define MONO_ARCH_HAVE_CMOV_OPS 1
261 #ifdef MONO_ARCH_SIMD_INTRINSICS
262 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
265 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
267 #if !defined(__APPLE__)
268 #define MONO_ARCH_AOT_SUPPORTED 1
271 #if defined(__linux__) || defined(__sun)
272 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
275 #define MONO_ARCH_GSHARED_SUPPORTED 1
276 #define MONO_ARCH_HAVE_LLVM_IMT_TRAMPOLINE 1
277 #define MONO_ARCH_LLVM_SUPPORTED 1
278 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
279 #define MONO_ARCH_HAVE_FIND_JIT_INFO_EXT 1
280 #define MONO_ARCH_HAVE_EXCEPTIONS_INIT 1
282 /* Used for optimization, not complete */
283 #define MONO_ARCH_IS_OP_MEMBASE(opcode) ((opcode) == OP_X86_PUSH_MEMBASE)
285 #define MONO_ARCH_EMIT_BOUNDS_CHECK(cfg, array_reg, offset, index_reg) do { \
287 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_REG); \
288 inst->inst_basereg = array_reg; \
289 inst->inst_offset = offset; \
290 inst->sreg2 = index_reg; \
291 MONO_ADD_INS ((cfg)->cbb, inst); \
292 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
298 } MonoBreakpointInfo;
300 extern MonoBreakpointInfo mono_breakpoint_info [MONO_BREAKPOINT_ARRAY_SIZE];
303 mono_x86_emit_tls_get (guint8* code, int dreg, int tls_offset) MONO_INTERNAL;
306 mono_x86_get_this_arg_offset (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig) MONO_INTERNAL;
309 mono_x86_have_tls_get (void) MONO_INTERNAL;
311 #endif /* __MONO_MINI_X86_H__ */