3 * JIT trampoline code for amd64
6 * Dietmar Maurer (dietmar@ximian.com)
7 * Zoltan Varga (vargaz@gmail.com)
8 * Johan Lorensson (lateralusx.github@gmail.com)
10 * (C) 2001 Ximian, Inc.
11 * Copyright 2003-2011 Novell, Inc (http://www.novell.com)
12 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
13 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
19 #include <mono/metadata/abi-details.h>
20 #include <mono/metadata/appdomain.h>
21 #include <mono/metadata/marshal.h>
22 #include <mono/metadata/tabledefs.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/gc-internals.h>
25 #include <mono/arch/amd64/amd64-codegen.h>
27 #include <mono/utils/memcheck.h>
30 #include "mini-amd64.h"
31 #include "debugger-agent.h"
33 #ifdef ENABLE_INTERPRETER
34 #include "interp/interp.h"
37 #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
39 #define IS_REX(inst) (((inst) >= 0x40) && ((inst) <= 0x4f))
43 * mono_arch_get_unbox_trampoline:
45 * @addr: pointer to native code for @m
47 * when value type methods are called through the vtable we need to unbox the
48 * this argument. This method returns a pointer to a trampoline which does
49 * unboxing before calling the method
52 mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr)
56 int this_reg, size = 20;
58 MonoDomain *domain = mono_domain_get ();
60 this_reg = mono_arch_get_this_arg_reg (NULL);
62 start = code = (guint8 *)mono_domain_code_reserve (domain, size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
64 unwind_ops = mono_arch_get_cie_program ();
66 amd64_alu_reg_imm (code, X86_ADD, this_reg, sizeof (MonoObject));
67 /* FIXME: Optimize this */
68 amd64_mov_reg_imm (code, AMD64_RAX, addr);
69 amd64_jump_reg (code, AMD64_RAX);
70 g_assert ((code - start) < size);
71 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
73 mono_arch_flush_icache (start, code - start);
74 MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m));
76 mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain);
82 * mono_arch_get_static_rgctx_trampoline:
84 * Create a trampoline which sets RGCTX_REG to ARG, then jumps to ADDR.
87 mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr)
93 MonoDomain *domain = mono_domain_get ();
95 #ifdef MONO_ARCH_NOMAP32BIT
98 /* AOTed code could still have a non-32 bit address */
99 if ((((guint64)addr) >> 32) == 0)
105 start = code = (guint8 *)mono_domain_code_reserve (domain, buf_len + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
107 unwind_ops = mono_arch_get_cie_program ();
109 amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, arg);
110 amd64_jump_code (code, addr);
111 g_assert ((code - start) < buf_len);
112 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
114 mono_arch_flush_icache (start, code - start);
115 MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
117 mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain);
121 #endif /* !DISABLE_JIT */
124 // Workaround lack of Valgrind support for 64-bit Windows
125 #define VALGRIND_DISCARD_TRANSLATIONS(...)
129 * mono_arch_patch_callsite:
131 * Patch the callsite whose address is given by ORIG_CODE so it calls ADDR. ORIG_CODE
132 * points to the pc right after the call.
135 mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr)
139 gboolean can_write = mono_breakpoint_clean_code (method_start, orig_code, 14, buf, sizeof (buf));
143 /* mov 64-bit imm into r11 (followed by call reg?) or direct call*/
144 if (((code [-13] == 0x49) && (code [-12] == 0xbb)) || (code [-5] == 0xe8)) {
145 if (code [-5] != 0xe8) {
147 InterlockedExchangePointer ((gpointer*)(orig_code - 11), addr);
148 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 11, sizeof (gpointer));
151 gboolean disp_32bit = ((((gint64)addr - (gint64)orig_code)) < (1 << 30)) && ((((gint64)addr - (gint64)orig_code)) > -(1 << 30));
153 if ((((guint64)(addr)) >> 32) != 0 && !disp_32bit) {
155 * This might happen with LLVM or when calling AOTed code. Create a thunk.
157 guint8 *thunk_start, *thunk_code;
159 thunk_start = thunk_code = (guint8 *)mono_domain_code_reserve (mono_domain_get (), 32);
160 amd64_jump_membase (thunk_code, AMD64_RIP, 0);
161 *(guint64*)thunk_code = (guint64)addr;
163 g_assert ((((guint64)(addr)) >> 32) == 0);
164 mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
165 MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
168 InterlockedExchange ((gint32*)(orig_code - 4), ((gint64)addr - (gint64)orig_code));
169 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, 4);
173 else if ((code [-7] == 0x41) && (code [-6] == 0xff) && (code [-5] == 0x15)) {
174 /* call *<OFFSET>(%rip) */
175 gpointer *got_entry = (gpointer*)((guint8*)orig_code + (*(guint32*)(orig_code - 4)));
177 InterlockedExchangePointer (got_entry, addr);
178 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, sizeof (gpointer));
185 mono_arch_create_llvm_native_thunk (MonoDomain *domain, guint8 *addr)
188 * The caller is LLVM code and the call displacement might exceed 32 bits. We can't determine the caller address, so
189 * we add a thunk every time.
190 * Since the caller is also allocated using the domain code manager, hopefully the displacement will fit into 32 bits.
191 * FIXME: Avoid this if possible if !MONO_ARCH_NOMAP32BIT and ADDR is 32 bits.
193 guint8 *thunk_start, *thunk_code;
195 thunk_start = thunk_code = (guint8 *)mono_domain_code_reserve (mono_domain_get (), 32);
196 amd64_jump_membase (thunk_code, AMD64_RIP, 0);
197 *(guint64*)thunk_code = (guint64)addr;
199 mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
200 MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
203 #endif /* !DISABLE_JIT */
206 mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
209 gpointer *plt_jump_table_entry;
211 /* A PLT entry: jmp *<DISP>(%rip) */
212 g_assert (code [0] == 0xff);
213 g_assert (code [1] == 0x25);
215 disp = *(gint32*)(code + 2);
217 plt_jump_table_entry = (gpointer*)(code + 6 + disp);
219 InterlockedExchangePointer (plt_jump_table_entry, addr);
224 stack_unaligned (MonoTrampolineType tramp_type)
226 printf ("%d\n", tramp_type);
227 g_assert_not_reached ();
231 mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
234 guint8 *buf, *code, *tramp, *br [2], *r11_save_code, *after_r11_save_code, *br_ex_check;
235 int i, lmf_offset, offset, res_offset, arg_offset, rax_offset, ex_offset, tramp_offset, ctx_offset, saved_regs_offset;
236 int r11_save_offset, saved_fpregs_offset, rbp_offset, framesize, orig_rsp_to_rbp_offset, cfa_offset;
238 GSList *unwind_ops = NULL;
239 MonoJumpInfo *ji = NULL;
240 const guint kMaxCodeSize = 630;
242 if (tramp_type == MONO_TRAMPOLINE_JUMP)
247 code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
249 /* Compute stack frame size and offsets */
251 rbp_offset = -offset;
253 offset += sizeof(mgreg_t);
254 rax_offset = -offset;
256 offset += sizeof(mgreg_t);
259 offset += sizeof(mgreg_t);
260 r11_save_offset = -offset;
262 offset += sizeof(mgreg_t);
263 tramp_offset = -offset;
265 offset += sizeof(gpointer);
266 arg_offset = -offset;
268 offset += sizeof(mgreg_t);
269 res_offset = -offset;
271 offset += sizeof (MonoContext);
272 ctx_offset = -offset;
273 saved_regs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
274 saved_fpregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, fregs);
276 offset += sizeof (MonoLMFTramp);
277 lmf_offset = -offset;
280 /* Reserve space where the callee can save the argument registers */
281 offset += 4 * sizeof (mgreg_t);
284 framesize = ALIGN_TO (offset, MONO_ARCH_FRAME_ALIGNMENT);
286 // CFA = sp + 16 (the trampoline address is on the stack)
288 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, 16);
289 // IP saved at CFA - 8
290 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RIP, -8);
292 orig_rsp_to_rbp_offset = 0;
293 r11_save_code = code;
294 /* Reserve space for the mov_membase_reg to save R11 */
296 after_r11_save_code = code;
298 /* Pop the return address off the stack */
299 amd64_pop_reg (code, AMD64_R11);
300 orig_rsp_to_rbp_offset += sizeof(mgreg_t);
302 cfa_offset -= sizeof(mgreg_t);
303 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
306 * Allocate a new stack frame
308 amd64_push_reg (code, AMD64_RBP);
309 cfa_offset += sizeof(mgreg_t);
310 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
311 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RBP, - cfa_offset);
313 orig_rsp_to_rbp_offset -= sizeof(mgreg_t);
314 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
315 mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
316 mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
317 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
319 /* Compute the trampoline address from the return address */
321 /* 7 = length of call *<offset>(rip) */
322 amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 7);
324 /* 5 = length of amd64_call_membase () */
325 amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 5);
327 amd64_mov_membase_reg (code, AMD64_RBP, tramp_offset, AMD64_R11, sizeof(gpointer));
329 /* Save all registers */
330 for (i = 0; i < AMD64_NREG; ++i) {
331 if (i == AMD64_RBP) {
332 /* RAX is already saved */
333 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, rbp_offset, sizeof(mgreg_t));
334 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_RAX, sizeof(mgreg_t));
335 } else if (i == AMD64_RIP) {
337 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, sizeof(gpointer));
339 amd64_mov_reg_imm (code, AMD64_R11, 0);
340 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_R11, sizeof(mgreg_t));
341 } else if (i == AMD64_RSP) {
342 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof(mgreg_t));
343 amd64_alu_reg_imm (code, X86_ADD, AMD64_R11, framesize + 16);
344 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_R11, sizeof(mgreg_t));
345 } else if (i != AMD64_R11) {
346 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
348 /* We have to save R11 right at the start of
349 the trampoline code because it's used as a
351 /* This happens before the frame is set up, so it goes into the redzone */
352 amd64_mov_membase_reg (r11_save_code, AMD64_RSP, r11_save_offset + orig_rsp_to_rbp_offset, i, sizeof(mgreg_t));
353 g_assert (r11_save_code == after_r11_save_code);
355 /* Copy from the save slot into the register array slot */
356 amd64_mov_reg_membase (code, i, AMD64_RSP, r11_save_offset + orig_rsp_to_rbp_offset, sizeof(mgreg_t));
357 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
359 /* cfa = rbp + cfa_offset */
360 mono_add_unwind_op_offset (unwind_ops, code, buf, i, - cfa_offset + saved_regs_offset + (i * sizeof (mgreg_t)));
362 for (i = 0; i < 8; ++i)
363 amd64_movsd_membase_reg (code, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)), i);
365 /* Check that the stack is aligned */
366 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof (mgreg_t));
367 amd64_alu_reg_imm (code, X86_AND, AMD64_R11, 15);
368 amd64_alu_reg_imm (code, X86_CMP, AMD64_R11, 0);
370 amd64_branch_disp (code, X86_CC_Z, 0, FALSE);
372 amd64_mov_reg_imm (code, AMD64_R11, 0);
373 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, 8);
375 amd64_mov_reg_imm (code, MONO_AMD64_ARG_REG1, tramp_type);
376 amd64_mov_reg_imm (code, AMD64_R11, stack_unaligned);
377 amd64_call_reg (code, AMD64_R11);
379 mono_amd64_patch (br [0], code);
380 //amd64_breakpoint (code);
382 /* Obtain the trampoline argument which is encoded in the instruction stream */
384 /* Load the GOT offset */
385 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
387 * r11 points to a call *<offset>(%rip) instruction, load the
388 * pc-relative offset from the instruction itself.
390 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 3, 4);
391 /* 7 is the length of the call, 8 is the offset to the next got slot */
392 amd64_alu_reg_imm_size (code, X86_ADD, AMD64_RAX, 7 + sizeof (gpointer), sizeof(gpointer));
393 /* Compute the address of the GOT slot */
394 amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, sizeof(gpointer));
396 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer));
398 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
399 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 5, 1);
400 amd64_widen_reg (code, AMD64_RAX, AMD64_RAX, TRUE, FALSE);
401 amd64_alu_reg_imm_size (code, X86_CMP, AMD64_RAX, 4, 1);
403 x86_branch8 (code, X86_CC_NE, 6, FALSE);
404 /* 32 bit immediate */
405 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 4);
407 x86_jump8 (code, 10);
408 /* 64 bit immediate */
409 mono_amd64_patch (br [0], code);
410 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 8);
411 mono_amd64_patch (br [1], code);
413 amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer));
419 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, sizeof(gpointer));
421 amd64_mov_reg_imm (code, AMD64_R11, 0);
422 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, rip), AMD64_R11, sizeof(mgreg_t));
424 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof(mgreg_t));
425 amd64_alu_reg_imm (code, X86_ADD, AMD64_R11, framesize + 16);
426 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, rsp), AMD64_R11, sizeof(mgreg_t));
427 /* Save pointer to context */
428 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, ctx_offset);
429 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, ctx), AMD64_R11, sizeof(mgreg_t));
432 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_get_lmf_addr");
434 amd64_mov_reg_imm (code, AMD64_R11, mono_get_lmf_addr);
436 amd64_call_reg (code, AMD64_R11);
439 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, lmf_addr), AMD64_RAX, sizeof(gpointer));
440 /* Save previous_lmf */
441 /* Set the lowest bit to signal that this LMF has the ip field set */
442 /* Set the third lowest bit to signal that this is a MonoLMFTramp structure */
443 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RAX, 0, sizeof(gpointer));
444 amd64_alu_reg_imm_size (code, X86_ADD, AMD64_R11, 0x5, sizeof(gpointer));
445 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), AMD64_R11, sizeof(gpointer));
447 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, lmf_offset);
448 amd64_mov_membase_reg (code, AMD64_RAX, 0, AMD64_R11, sizeof(gpointer));
452 /* Arg1 is the pointer to the saved registers */
453 amd64_lea_membase (code, AMD64_ARG_REG1, AMD64_RBP, saved_regs_offset);
455 /* Arg2 is the address of the calling code */
457 amd64_mov_reg_membase (code, AMD64_ARG_REG2, AMD64_RBP, 8, sizeof(gpointer));
459 amd64_mov_reg_imm (code, AMD64_ARG_REG2, 0);
461 /* Arg3 is the method/vtable ptr */
462 amd64_mov_reg_membase (code, AMD64_ARG_REG3, AMD64_RBP, arg_offset, sizeof(gpointer));
464 /* Arg4 is the trampoline address */
465 amd64_mov_reg_membase (code, AMD64_ARG_REG4, AMD64_RBP, tramp_offset, sizeof(gpointer));
468 char *icall_name = g_strdup_printf ("trampoline_func_%d", tramp_type);
469 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, icall_name);
471 tramp = (guint8*)mono_get_trampoline_func (tramp_type);
472 amd64_mov_reg_imm (code, AMD64_R11, tramp);
474 amd64_call_reg (code, AMD64_R11);
475 amd64_mov_membase_reg (code, AMD64_RBP, res_offset, AMD64_RAX, sizeof(mgreg_t));
478 amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), sizeof(gpointer));
479 amd64_alu_reg_imm_size (code, X86_SUB, AMD64_RCX, 0x5, sizeof(gpointer));
480 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, lmf_addr), sizeof(gpointer));
481 amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RCX, sizeof(gpointer));
484 * Save rax to the stack, after the leave instruction, this will become part of
487 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, res_offset, sizeof(mgreg_t));
488 amd64_mov_membase_reg (code, AMD64_RBP, rax_offset, AMD64_RAX, sizeof(mgreg_t));
490 /* Check for thread interruption */
491 /* This is not perf critical code so no need to check the interrupt flag */
493 * Have to call the _force_ variant, since there could be a protected wrapper on the top of the stack.
496 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_force_interruption_checkpoint_noraise");
498 amd64_mov_reg_imm (code, AMD64_R11, (guint8*)mono_thread_force_interruption_checkpoint_noraise);
500 amd64_call_reg (code, AMD64_R11);
502 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
504 amd64_branch8 (code, X86_CC_Z, -1, 1);
508 * We have an exception we want to throw in the caller's frame, so pop
509 * the trampoline frame and throw from the caller.
512 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
513 amd64_pop_reg (code, AMD64_RBP);
514 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
518 /* We are in the parent frame, the exception is in rax */
520 * EH is initialized after trampolines, so get the address of the variable
521 * which contains throw_exception, and load it from there.
524 /* Not really a jit icall */
525 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "throw_exception_addr");
527 amd64_mov_reg_imm (code, AMD64_R11, (guint8*)mono_get_throw_exception_addr ());
529 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer));
530 amd64_mov_reg_reg (code, AMD64_ARG_REG1, AMD64_RAX, sizeof(mgreg_t));
532 * We still have the original return value on the top of the stack, so the
533 * throw trampoline will use that as the throw site.
535 amd64_jump_reg (code, AMD64_R11);
538 mono_amd64_patch (br_ex_check, code);
540 /* Restore argument registers, r10 (imt method/rgxtx)
541 and rax (needed for direct calls to C vararg functions). */
542 for (i = 0; i < AMD64_NREG; ++i)
543 if (AMD64_IS_ARGUMENT_REG (i) || i == AMD64_R10 || i == AMD64_RAX)
544 amd64_mov_reg_membase (code, i, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), sizeof(mgreg_t));
545 for (i = 0; i < 8; ++i)
546 amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)));
550 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
551 amd64_pop_reg (code, AMD64_RBP);
552 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
556 cfa_offset -= sizeof (mgreg_t);
557 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
559 if (MONO_TRAMPOLINE_TYPE_MUST_RETURN (tramp_type)) {
561 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RSP, rax_offset - sizeof(mgreg_t), sizeof(mgreg_t));
564 /* call the compiled method using the saved rax */
565 amd64_jump_membase (code, AMD64_RSP, rax_offset - sizeof(mgreg_t));
568 g_assert ((code - buf) <= kMaxCodeSize);
569 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
571 mono_arch_flush_icache (buf, code - buf);
572 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
574 tramp_name = mono_get_generic_trampoline_name (tramp_type);
575 *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
582 mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
584 guint8 *code, *buf, *tramp;
586 gboolean far_addr = FALSE;
588 tramp = mono_get_trampoline_code (tramp_type);
590 if ((((guint64)arg1) >> 32) == 0)
595 code = buf = (guint8 *)mono_domain_code_reserve_align (domain, size, 1);
597 if (((gint64)tramp - (gint64)code) >> 31 != 0 && ((gint64)tramp - (gint64)code) >> 31 != -1) {
598 #ifndef MONO_ARCH_NOMAP32BIT
599 g_assert_not_reached ();
603 code = buf = (guint8 *)mono_domain_code_reserve_align (domain, size, 1);
607 amd64_mov_reg_imm (code, AMD64_R11, tramp);
608 amd64_call_reg (code, AMD64_R11);
610 amd64_call_code (code, tramp);
612 /* The trampoline code will obtain the argument from the instruction stream */
613 if ((((guint64)arg1) >> 32) == 0) {
615 *(guint32*)(code + 1) = (gint64)arg1;
619 *(guint64*)(code + 1) = (gint64)arg1;
623 g_assert ((code - buf) <= size);
628 mono_arch_flush_icache (buf, size);
629 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type)));
635 mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
639 guint8 **rgctx_null_jumps;
644 MonoJumpInfo *ji = NULL;
647 mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
648 index = MONO_RGCTX_SLOT_INDEX (slot);
650 index += MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT / sizeof (gpointer);
651 for (depth = 0; ; ++depth) {
652 int size = mono_class_rgctx_get_array_size (depth, mrgctx);
654 if (index < size - 1)
659 tramp_size = 64 + 8 * depth;
661 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
663 unwind_ops = mono_arch_get_cie_program ();
665 rgctx_null_jumps = (guint8 **)g_malloc (sizeof (guint8*) * (depth + 2));
669 amd64_mov_reg_reg (code, AMD64_RAX, AMD64_ARG_REG1, 8);
671 /* load rgctx ptr from vtable */
672 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoVTable, runtime_generic_context), sizeof(gpointer));
673 /* is the rgctx ptr null? */
674 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
675 /* if yes, jump to actual trampoline */
676 rgctx_null_jumps [0] = code;
677 amd64_branch8 (code, X86_CC_Z, -1, 1);
680 for (i = 0; i < depth; ++i) {
681 /* load ptr to next array */
682 if (mrgctx && i == 0)
683 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT, sizeof(gpointer));
685 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, 0, sizeof(gpointer));
686 /* is the ptr null? */
687 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
688 /* if yes, jump to actual trampoline */
689 rgctx_null_jumps [i + 1] = code;
690 amd64_branch8 (code, X86_CC_Z, -1, 1);
694 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, sizeof (gpointer) * (index + 1), sizeof(gpointer));
695 /* is the slot null? */
696 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
697 /* if yes, jump to actual trampoline */
698 rgctx_null_jumps [depth + 1] = code;
699 amd64_branch8 (code, X86_CC_Z, -1, 1);
700 /* otherwise return */
703 for (i = mrgctx ? 1 : 0; i <= depth + 1; ++i)
704 mono_amd64_patch (rgctx_null_jumps [i], code);
706 g_free (rgctx_null_jumps);
708 /* move the rgctx pointer to the VTABLE register */
709 amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer));
712 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, g_strdup_printf ("specific_trampoline_lazy_fetch_%u", slot));
713 amd64_jump_reg (code, AMD64_R11);
715 tramp = (guint8 *)mono_arch_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
717 /* jump to the actual trampoline */
718 amd64_jump_code (code, tramp);
721 mono_arch_flush_icache (buf, code - buf);
722 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
724 g_assert (code - buf <= tramp_size);
725 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
727 char *name = mono_get_rgctx_fetch_trampoline_name (slot);
728 *info = mono_tramp_info_create (name, buf, code - buf, ji, unwind_ops);
735 mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboolean aot)
739 MonoJumpInfo *ji = NULL;
745 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
747 unwind_ops = mono_arch_get_cie_program ();
749 // FIXME: Currently, we always go to the slow path.
750 /* This receives a <slot, trampoline> in the rgctx arg reg. */
751 /* Load trampoline addr */
752 amd64_mov_reg_membase (code, AMD64_R11, MONO_ARCH_RGCTX_REG, 8, 8);
753 /* move the rgctx pointer to the VTABLE register */
754 amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer));
755 /* Jump to the trampoline */
756 amd64_jump_reg (code, AMD64_R11);
758 mono_arch_flush_icache (buf, code - buf);
759 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
761 g_assert (code - buf <= tramp_size);
762 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
765 *info = mono_tramp_info_create ("rgctx_fetch_trampoline_general", buf, code - buf, ji, unwind_ops);
771 mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg)
773 /* FIXME: This is not thread safe */
774 guint8 *code = (guint8 *)ji->code_start;
776 amd64_mov_reg_imm (code, AMD64_ARG_REG1, func_arg);
777 amd64_mov_reg_imm (code, AMD64_R11, func);
779 x86_push_imm (code, (guint64)func_arg);
780 amd64_call_reg (code, AMD64_R11);
782 #endif /* !DISABLE_JIT */
785 * mono_arch_get_call_target:
787 * Return the address called by the code before CODE if exists.
790 mono_arch_get_call_target (guint8 *code)
792 if (code [-5] == 0xe8) {
793 gint32 disp = *(gint32*)(code - 4);
794 guint8 *target = code + disp;
803 * mono_arch_get_plt_info_offset:
805 * Return the PLT info offset belonging to the plt entry PLT_ENTRY.
808 mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code)
810 return *(guint32*)(plt_entry + 6);
815 * mono_arch_create_sdb_trampoline:
817 * Return a trampoline which captures the current context, passes it to
818 * debugger_agent_single_step_from_context ()/debugger_agent_breakpoint_from_context (),
819 * then restores the (potentially changed) context.
822 mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot)
824 int tramp_size = 512;
825 int i, framesize, ctx_offset, cfa_offset, gregs_offset;
827 GSList *unwind_ops = NULL;
828 MonoJumpInfo *ji = NULL;
830 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
834 /* Reserve space where the callee can save the argument registers */
835 framesize += 4 * sizeof (mgreg_t);
838 ctx_offset = framesize;
839 framesize += sizeof (MonoContext);
841 framesize = ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT);
845 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, 8);
846 // IP saved at CFA - 8
847 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RIP, -cfa_offset);
849 amd64_push_reg (code, AMD64_RBP);
850 cfa_offset += sizeof(mgreg_t);
851 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
852 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RBP, - cfa_offset);
854 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
855 mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
856 mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
857 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
859 gregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
861 /* Initialize a MonoContext structure on the stack */
862 for (i = 0; i < AMD64_NREG; ++i) {
863 if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_RBP)
864 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (i * sizeof (mgreg_t)), i, sizeof (mgreg_t));
866 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 0, sizeof (mgreg_t));
867 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RBP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
868 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, 2 * sizeof (mgreg_t));
869 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RSP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
870 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, sizeof (mgreg_t), sizeof (mgreg_t));
871 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
873 /* Call the single step/breakpoint function in sdb */
874 amd64_lea_membase (code, AMD64_ARG_REG1, AMD64_RSP, ctx_offset);
878 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "debugger_agent_single_step_from_context");
880 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "debugger_agent_breakpoint_from_context");
883 amd64_mov_reg_imm (code, AMD64_R11, debugger_agent_single_step_from_context);
885 amd64_mov_reg_imm (code, AMD64_R11, debugger_agent_breakpoint_from_context);
887 amd64_call_reg (code, AMD64_R11);
889 /* Restore registers from ctx */
890 for (i = 0; i < AMD64_NREG; ++i) {
891 if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_RBP)
892 amd64_mov_reg_membase (code, i, AMD64_RSP, gregs_offset + (i * sizeof (mgreg_t)), sizeof (mgreg_t));
894 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RBP * sizeof (mgreg_t)), sizeof (mgreg_t));
895 amd64_mov_membase_reg (code, AMD64_RBP, 0, AMD64_R11, sizeof (mgreg_t));
896 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), sizeof (mgreg_t));
897 amd64_mov_membase_reg (code, AMD64_RBP, sizeof (mgreg_t), AMD64_R11, sizeof (mgreg_t));
900 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
901 amd64_pop_reg (code, AMD64_RBP);
902 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
906 cfa_offset -= sizeof (mgreg_t);
907 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
910 mono_arch_flush_icache (code, code - buf);
911 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
912 g_assert (code - buf <= tramp_size);
913 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
915 const char *tramp_name = single_step ? "sdb_single_step_trampoline" : "sdb_breakpoint_trampoline";
916 *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
922 * mono_arch_get_enter_icall_trampoline:
924 * A trampoline that handles the transition from interpreter into native
925 * world. It requiers to set up a descriptor (InterpMethodArguments), so the
926 * trampoline can translate the arguments into the native calling convention.
928 * See also `build_args_from_sig ()` in interp.c.
931 mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
933 #ifdef ENABLE_INTERPRETER
934 const int gregs_num = INTERP_ICALL_TRAMP_IARGS;
935 const int fregs_num = INTERP_ICALL_TRAMP_FARGS;
936 guint8 *start = NULL, *code, *label_gexits [gregs_num], *label_fexits [fregs_num], *label_leave_tramp [3], *label_is_float_ret;
937 MonoJumpInfo *ji = NULL;
938 GSList *unwind_ops = NULL;
939 static int farg_regs[] = {AMD64_XMM0, AMD64_XMM1, AMD64_XMM2};
940 int buf_len, i, framesize = 0, off_rbp, off_methodargs, off_targetaddr;
942 buf_len = 512 + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0);
943 start = code = (guint8 *) mono_global_codeman_reserve (buf_len);
945 off_rbp = -framesize;
947 framesize += sizeof (mgreg_t);
948 off_methodargs = -framesize;
950 framesize += sizeof (mgreg_t);
951 off_targetaddr = -framesize;
953 framesize += (gregs_num - PARAM_REGS) * sizeof (mgreg_t);
955 amd64_push_reg (code, AMD64_RBP);
956 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof (mgreg_t));
957 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
959 /* save InterpMethodArguments* onto stack */
960 amd64_mov_membase_reg (code, AMD64_RBP, off_methodargs, AMD64_ARG_REG2, sizeof (mgreg_t));
962 /* save target address on stack */
963 amd64_mov_membase_reg (code, AMD64_RBP, off_targetaddr, AMD64_ARG_REG1, sizeof (mgreg_t));
965 /* load pointer to InterpMethodArguments* into R11 */
966 amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, 8);
968 /* move flen into RAX */
969 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, flen), sizeof (mgreg_t));
970 /* load pointer to fargs into R11 */
971 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, fargs), sizeof (mgreg_t));
973 for (i = 0; i < fregs_num; ++i) {
974 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
975 label_fexits [i] = code;
976 x86_branch8 (code, X86_CC_Z, 0, FALSE);
978 amd64_sse_movsd_reg_membase (code, farg_regs [i], AMD64_R11, i * sizeof (double));
979 amd64_dec_reg_size (code, AMD64_RAX, 1);
982 for (i = 0; i < fregs_num; i++)
983 x86_patch (label_fexits [i], code);
985 /* load pointer to InterpMethodArguments* into R11 */
986 amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, sizeof (mgreg_t));
987 /* move ilen into RAX */
988 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, ilen), sizeof (mgreg_t));
990 int stack_offset = 0;
991 for (i = 0; i < gregs_num; i++) {
992 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
993 label_gexits [i] = code;
994 x86_branch32 (code, X86_CC_Z, 0, FALSE);
996 /* load pointer to InterpMethodArguments* into R11 */
997 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
998 /* load pointer to iargs into R11 */
999 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, iargs), sizeof (mgreg_t));
1001 if (i < PARAM_REGS) {
1002 amd64_mov_reg_membase (code, param_regs [i], AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
1004 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
1005 amd64_mov_membase_reg (code, AMD64_RSP, stack_offset, AMD64_R11, sizeof (mgreg_t));
1006 stack_offset += sizeof (mgreg_t);
1008 amd64_dec_reg_size (code, AMD64_RAX, 1);
1011 for (i = 0; i < gregs_num; i++)
1012 x86_patch (label_gexits [i], code);
1014 /* load target addr */
1015 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_targetaddr, sizeof (mgreg_t));
1017 /* call into native function */
1018 amd64_call_reg (code, AMD64_R11);
1020 /* load InterpMethodArguments */
1021 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1023 /* load is_float_ret */
1024 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, is_float_ret), sizeof (mgreg_t));
1026 /* check if a float return value is expected */
1027 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1029 label_is_float_ret = code;
1030 x86_branch8 (code, X86_CC_NZ, 0, FALSE);
1033 /* load InterpMethodArguments */
1034 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1036 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t));
1038 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1039 label_leave_tramp [0] = code;
1040 x86_branch8 (code, X86_CC_Z, 0, FALSE);
1042 amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, sizeof (mgreg_t));
1044 label_leave_tramp [1] = code;
1045 x86_jump8 (code, 0);
1048 x86_patch (label_is_float_ret, code);
1049 /* load InterpMethodArguments */
1050 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1052 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t));
1054 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1055 label_leave_tramp [2] = code;
1056 x86_branch8 (code, X86_CC_Z, 0, FALSE);
1058 amd64_sse_movsd_membase_reg (code, AMD64_R11, 0, AMD64_XMM0);
1060 for (i = 0; i < 3; i++)
1061 x86_patch (label_leave_tramp [i], code);
1063 amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
1064 amd64_pop_reg (code, AMD64_RBP);
1067 g_assert (code - start < buf_len);
1069 mono_arch_flush_icache (start, code - start);
1070 MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL));
1073 *info = mono_tramp_info_create ("enter_icall_trampoline", start, code - start, ji, unwind_ops);
1077 g_assert_not_reached ();
1079 #endif /* ENABLE_INTERPRETER */
1081 #endif /* !DISABLE_JIT */
1085 mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr)
1087 g_assert_not_reached ();
1092 mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr)
1094 g_assert_not_reached ();
1099 mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
1101 g_assert_not_reached ();
1106 mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
1108 g_assert_not_reached ();
1113 mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
1115 g_assert_not_reached ();
1120 mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboolean aot)
1122 g_assert_not_reached ();
1127 mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg)
1129 g_assert_not_reached ();
1134 mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot)
1136 g_assert_not_reached ();
1141 mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
1143 g_assert_not_reached ();
1146 #endif /* DISABLE_JIT */