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 g_assert ((guint64)(orig_code - 11) % 8 == 0);
148 InterlockedExchangePointer ((gpointer*)(orig_code - 11), addr);
149 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 11, sizeof (gpointer));
152 gboolean disp_32bit = ((((gint64)addr - (gint64)orig_code)) < (1 << 30)) && ((((gint64)addr - (gint64)orig_code)) > -(1 << 30));
154 if ((((guint64)(addr)) >> 32) != 0 && !disp_32bit) {
156 * This might happen with LLVM or when calling AOTed code. Create a thunk.
158 guint8 *thunk_start, *thunk_code;
160 thunk_start = thunk_code = (guint8 *)mono_domain_code_reserve (mono_domain_get (), 32);
161 amd64_jump_membase (thunk_code, AMD64_RIP, 0);
162 *(guint64*)thunk_code = (guint64)addr;
164 g_assert ((((guint64)(addr)) >> 32) == 0);
165 mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
166 MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
169 InterlockedExchange ((gint32*)(orig_code - 4), ((gint64)addr - (gint64)orig_code));
170 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, 4);
174 else if ((code [-7] == 0x41) && (code [-6] == 0xff) && (code [-5] == 0x15)) {
175 /* call *<OFFSET>(%rip) */
176 gpointer *got_entry = (gpointer*)((guint8*)orig_code + (*(guint32*)(orig_code - 4)));
178 InterlockedExchangePointer (got_entry, addr);
179 VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, sizeof (gpointer));
186 mono_arch_create_llvm_native_thunk (MonoDomain *domain, guint8 *addr)
189 * The caller is LLVM code and the call displacement might exceed 32 bits. We can't determine the caller address, so
190 * we add a thunk every time.
191 * Since the caller is also allocated using the domain code manager, hopefully the displacement will fit into 32 bits.
192 * FIXME: Avoid this if possible if !MONO_ARCH_NOMAP32BIT and ADDR is 32 bits.
194 guint8 *thunk_start, *thunk_code;
196 thunk_start = thunk_code = (guint8 *)mono_domain_code_reserve (mono_domain_get (), 32);
197 amd64_jump_membase (thunk_code, AMD64_RIP, 0);
198 *(guint64*)thunk_code = (guint64)addr;
200 mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
201 MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
204 #endif /* !DISABLE_JIT */
207 mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
210 gpointer *plt_jump_table_entry;
212 /* A PLT entry: jmp *<DISP>(%rip) */
213 g_assert (code [0] == 0xff);
214 g_assert (code [1] == 0x25);
216 disp = *(gint32*)(code + 2);
218 plt_jump_table_entry = (gpointer*)(code + 6 + disp);
220 InterlockedExchangePointer (plt_jump_table_entry, addr);
225 stack_unaligned (MonoTrampolineType tramp_type)
227 printf ("%d\n", tramp_type);
228 g_assert_not_reached ();
232 mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
235 guint8 *buf, *code, *tramp, *br [2], *r11_save_code, *after_r11_save_code, *br_ex_check;
236 int i, lmf_offset, offset, res_offset, arg_offset, rax_offset, ex_offset, tramp_offset, ctx_offset, saved_regs_offset;
237 int r11_save_offset, saved_fpregs_offset, rbp_offset, framesize, orig_rsp_to_rbp_offset, cfa_offset;
239 GSList *unwind_ops = NULL;
240 MonoJumpInfo *ji = NULL;
241 const guint kMaxCodeSize = 630;
243 if (tramp_type == MONO_TRAMPOLINE_JUMP)
248 code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
250 /* Compute stack frame size and offsets */
252 rbp_offset = -offset;
254 offset += sizeof(mgreg_t);
255 rax_offset = -offset;
257 offset += sizeof(mgreg_t);
260 offset += sizeof(mgreg_t);
261 r11_save_offset = -offset;
263 offset += sizeof(mgreg_t);
264 tramp_offset = -offset;
266 offset += sizeof(gpointer);
267 arg_offset = -offset;
269 offset += sizeof(mgreg_t);
270 res_offset = -offset;
272 offset += sizeof (MonoContext);
273 ctx_offset = -offset;
274 saved_regs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
275 saved_fpregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, fregs);
277 offset += sizeof (MonoLMFTramp);
278 lmf_offset = -offset;
281 /* Reserve space where the callee can save the argument registers */
282 offset += 4 * sizeof (mgreg_t);
285 framesize = ALIGN_TO (offset, MONO_ARCH_FRAME_ALIGNMENT);
287 // CFA = sp + 16 (the trampoline address is on the stack)
289 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, 16);
290 // IP saved at CFA - 8
291 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RIP, -8);
293 orig_rsp_to_rbp_offset = 0;
294 r11_save_code = code;
295 /* Reserve space for the mov_membase_reg to save R11 */
297 after_r11_save_code = code;
299 /* Pop the return address off the stack */
300 amd64_pop_reg (code, AMD64_R11);
301 orig_rsp_to_rbp_offset += sizeof(mgreg_t);
303 cfa_offset -= sizeof(mgreg_t);
304 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
307 * Allocate a new stack frame
309 amd64_push_reg (code, AMD64_RBP);
310 cfa_offset += sizeof(mgreg_t);
311 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
312 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RBP, - cfa_offset);
314 orig_rsp_to_rbp_offset -= sizeof(mgreg_t);
315 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
316 mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
317 mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
318 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
320 /* Compute the trampoline address from the return address */
322 /* 7 = length of call *<offset>(rip) */
323 amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 7);
325 /* 5 = length of amd64_call_membase () */
326 amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 5);
328 amd64_mov_membase_reg (code, AMD64_RBP, tramp_offset, AMD64_R11, sizeof(gpointer));
330 /* Save all registers */
331 for (i = 0; i < AMD64_NREG; ++i) {
332 if (i == AMD64_RBP) {
333 /* RAX is already saved */
334 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, rbp_offset, sizeof(mgreg_t));
335 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_RAX, sizeof(mgreg_t));
336 } else if (i == AMD64_RIP) {
338 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, sizeof(gpointer));
340 amd64_mov_reg_imm (code, AMD64_R11, 0);
341 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_R11, sizeof(mgreg_t));
342 } else if (i == AMD64_RSP) {
343 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof(mgreg_t));
344 amd64_alu_reg_imm (code, X86_ADD, AMD64_R11, framesize + 16);
345 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_R11, sizeof(mgreg_t));
346 } else if (i != AMD64_R11) {
347 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
349 /* We have to save R11 right at the start of
350 the trampoline code because it's used as a
352 /* This happens before the frame is set up, so it goes into the redzone */
353 amd64_mov_membase_reg (r11_save_code, AMD64_RSP, r11_save_offset + orig_rsp_to_rbp_offset, i, sizeof(mgreg_t));
354 g_assert (r11_save_code == after_r11_save_code);
356 /* Copy from the save slot into the register array slot */
357 amd64_mov_reg_membase (code, i, AMD64_RSP, r11_save_offset + orig_rsp_to_rbp_offset, sizeof(mgreg_t));
358 amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
360 /* cfa = rbp + cfa_offset */
361 mono_add_unwind_op_offset (unwind_ops, code, buf, i, - cfa_offset + saved_regs_offset + (i * sizeof (mgreg_t)));
363 for (i = 0; i < 8; ++i)
364 amd64_movsd_membase_reg (code, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)), i);
366 /* Check that the stack is aligned */
367 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof (mgreg_t));
368 amd64_alu_reg_imm (code, X86_AND, AMD64_R11, 15);
369 amd64_alu_reg_imm (code, X86_CMP, AMD64_R11, 0);
371 amd64_branch_disp (code, X86_CC_Z, 0, FALSE);
373 amd64_mov_reg_imm (code, AMD64_R11, 0);
374 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, 8);
376 amd64_mov_reg_imm (code, MONO_AMD64_ARG_REG1, tramp_type);
377 amd64_mov_reg_imm (code, AMD64_R11, stack_unaligned);
378 amd64_call_reg (code, AMD64_R11);
380 mono_amd64_patch (br [0], code);
381 //amd64_breakpoint (code);
383 /* Obtain the trampoline argument which is encoded in the instruction stream */
385 /* Load the GOT offset */
386 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
388 * r11 points to a call *<offset>(%rip) instruction, load the
389 * pc-relative offset from the instruction itself.
391 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 3, 4);
392 /* 7 is the length of the call, 8 is the offset to the next got slot */
393 amd64_alu_reg_imm_size (code, X86_ADD, AMD64_RAX, 7 + sizeof (gpointer), sizeof(gpointer));
394 /* Compute the address of the GOT slot */
395 amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, sizeof(gpointer));
397 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer));
399 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
400 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 5, 1);
401 amd64_widen_reg (code, AMD64_RAX, AMD64_RAX, TRUE, FALSE);
402 amd64_alu_reg_imm_size (code, X86_CMP, AMD64_RAX, 4, 1);
404 x86_branch8 (code, X86_CC_NE, 6, FALSE);
405 /* 32 bit immediate */
406 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 4);
408 x86_jump8 (code, 10);
409 /* 64 bit immediate */
410 mono_amd64_patch (br [0], code);
411 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 8);
412 mono_amd64_patch (br [1], code);
414 amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer));
420 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, sizeof(gpointer));
422 amd64_mov_reg_imm (code, AMD64_R11, 0);
423 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, rip), AMD64_R11, sizeof(mgreg_t));
425 amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof(mgreg_t));
426 amd64_alu_reg_imm (code, X86_ADD, AMD64_R11, framesize + 16);
427 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, rsp), AMD64_R11, sizeof(mgreg_t));
428 /* Save pointer to context */
429 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, ctx_offset);
430 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, ctx), AMD64_R11, sizeof(mgreg_t));
433 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_get_lmf_addr");
435 amd64_mov_reg_imm (code, AMD64_R11, mono_get_lmf_addr);
437 amd64_call_reg (code, AMD64_R11);
440 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, lmf_addr), AMD64_RAX, sizeof(gpointer));
441 /* Save previous_lmf */
442 /* Set the lowest bit to signal that this LMF has the ip field set */
443 /* Set the third lowest bit to signal that this is a MonoLMFTramp structure */
444 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RAX, 0, sizeof(gpointer));
445 amd64_alu_reg_imm_size (code, X86_ADD, AMD64_R11, 0x5, sizeof(gpointer));
446 amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), AMD64_R11, sizeof(gpointer));
448 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, lmf_offset);
449 amd64_mov_membase_reg (code, AMD64_RAX, 0, AMD64_R11, sizeof(gpointer));
453 /* Arg1 is the pointer to the saved registers */
454 amd64_lea_membase (code, AMD64_ARG_REG1, AMD64_RBP, saved_regs_offset);
456 /* Arg2 is the address of the calling code */
458 amd64_mov_reg_membase (code, AMD64_ARG_REG2, AMD64_RBP, 8, sizeof(gpointer));
460 amd64_mov_reg_imm (code, AMD64_ARG_REG2, 0);
462 /* Arg3 is the method/vtable ptr */
463 amd64_mov_reg_membase (code, AMD64_ARG_REG3, AMD64_RBP, arg_offset, sizeof(gpointer));
465 /* Arg4 is the trampoline address */
466 amd64_mov_reg_membase (code, AMD64_ARG_REG4, AMD64_RBP, tramp_offset, sizeof(gpointer));
469 char *icall_name = g_strdup_printf ("trampoline_func_%d", tramp_type);
470 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, icall_name);
472 tramp = (guint8*)mono_get_trampoline_func (tramp_type);
473 amd64_mov_reg_imm (code, AMD64_R11, tramp);
475 amd64_call_reg (code, AMD64_R11);
476 amd64_mov_membase_reg (code, AMD64_RBP, res_offset, AMD64_RAX, sizeof(mgreg_t));
479 amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), sizeof(gpointer));
480 amd64_alu_reg_imm_size (code, X86_SUB, AMD64_RCX, 0x5, sizeof(gpointer));
481 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, lmf_offset + MONO_STRUCT_OFFSET (MonoLMFTramp, lmf_addr), sizeof(gpointer));
482 amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RCX, sizeof(gpointer));
485 * Save rax to the stack, after the leave instruction, this will become part of
488 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, res_offset, sizeof(mgreg_t));
489 amd64_mov_membase_reg (code, AMD64_RBP, rax_offset, AMD64_RAX, sizeof(mgreg_t));
491 /* Check for thread interruption */
492 /* This is not perf critical code so no need to check the interrupt flag */
494 * Have to call the _force_ variant, since there could be a protected wrapper on the top of the stack.
497 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_force_interruption_checkpoint_noraise");
499 amd64_mov_reg_imm (code, AMD64_R11, (guint8*)mono_thread_force_interruption_checkpoint_noraise);
501 amd64_call_reg (code, AMD64_R11);
503 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
505 amd64_branch8 (code, X86_CC_Z, -1, 1);
509 * We have an exception we want to throw in the caller's frame, so pop
510 * the trampoline frame and throw from the caller.
513 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
514 amd64_pop_reg (code, AMD64_RBP);
515 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
519 /* We are in the parent frame, the exception is in rax */
521 * EH is initialized after trampolines, so get the address of the variable
522 * which contains throw_exception, and load it from there.
525 /* Not really a jit icall */
526 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "throw_exception_addr");
528 amd64_mov_reg_imm (code, AMD64_R11, (guint8*)mono_get_throw_exception_addr ());
530 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer));
531 amd64_mov_reg_reg (code, AMD64_ARG_REG1, AMD64_RAX, sizeof(mgreg_t));
533 * We still have the original return value on the top of the stack, so the
534 * throw trampoline will use that as the throw site.
536 amd64_jump_reg (code, AMD64_R11);
539 mono_amd64_patch (br_ex_check, code);
541 /* Restore argument registers, r10 (imt method/rgxtx)
542 and rax (needed for direct calls to C vararg functions). */
543 for (i = 0; i < AMD64_NREG; ++i)
544 if (AMD64_IS_ARGUMENT_REG (i) || i == AMD64_R10 || i == AMD64_RAX)
545 amd64_mov_reg_membase (code, i, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), sizeof(mgreg_t));
546 for (i = 0; i < 8; ++i)
547 amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)));
551 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
552 amd64_pop_reg (code, AMD64_RBP);
553 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
557 cfa_offset -= sizeof (mgreg_t);
558 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
560 if (MONO_TRAMPOLINE_TYPE_MUST_RETURN (tramp_type)) {
562 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RSP, rax_offset - sizeof(mgreg_t), sizeof(mgreg_t));
565 /* call the compiled method using the saved rax */
566 amd64_jump_membase (code, AMD64_RSP, rax_offset - sizeof(mgreg_t));
569 g_assert ((code - buf) <= kMaxCodeSize);
570 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
572 mono_arch_flush_icache (buf, code - buf);
573 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
575 tramp_name = mono_get_generic_trampoline_name (tramp_type);
576 *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
583 mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
585 guint8 *code, *buf, *tramp;
587 gboolean far_addr = FALSE;
589 tramp = mono_get_trampoline_code (tramp_type);
591 if ((((guint64)arg1) >> 32) == 0)
596 code = buf = (guint8 *)mono_domain_code_reserve_align (domain, size, 1);
598 if (((gint64)tramp - (gint64)code) >> 31 != 0 && ((gint64)tramp - (gint64)code) >> 31 != -1) {
599 #ifndef MONO_ARCH_NOMAP32BIT
600 g_assert_not_reached ();
604 code = buf = (guint8 *)mono_domain_code_reserve_align (domain, size, 1);
608 amd64_mov_reg_imm (code, AMD64_R11, tramp);
609 amd64_call_reg (code, AMD64_R11);
611 amd64_call_code (code, tramp);
613 /* The trampoline code will obtain the argument from the instruction stream */
614 if ((((guint64)arg1) >> 32) == 0) {
616 *(guint32*)(code + 1) = (gint64)arg1;
620 *(guint64*)(code + 1) = (gint64)arg1;
624 g_assert ((code - buf) <= size);
629 mono_arch_flush_icache (buf, size);
630 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type)));
636 mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
640 guint8 **rgctx_null_jumps;
645 MonoJumpInfo *ji = NULL;
648 mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
649 index = MONO_RGCTX_SLOT_INDEX (slot);
651 index += MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT / sizeof (gpointer);
652 for (depth = 0; ; ++depth) {
653 int size = mono_class_rgctx_get_array_size (depth, mrgctx);
655 if (index < size - 1)
660 tramp_size = 64 + 8 * depth;
662 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
664 unwind_ops = mono_arch_get_cie_program ();
666 rgctx_null_jumps = (guint8 **)g_malloc (sizeof (guint8*) * (depth + 2));
670 amd64_mov_reg_reg (code, AMD64_RAX, AMD64_ARG_REG1, 8);
672 /* load rgctx ptr from vtable */
673 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoVTable, runtime_generic_context), sizeof(gpointer));
674 /* is the rgctx ptr null? */
675 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
676 /* if yes, jump to actual trampoline */
677 rgctx_null_jumps [0] = code;
678 amd64_branch8 (code, X86_CC_Z, -1, 1);
681 for (i = 0; i < depth; ++i) {
682 /* load ptr to next array */
683 if (mrgctx && i == 0)
684 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT, sizeof(gpointer));
686 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, 0, sizeof(gpointer));
687 /* is the ptr null? */
688 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
689 /* if yes, jump to actual trampoline */
690 rgctx_null_jumps [i + 1] = code;
691 amd64_branch8 (code, X86_CC_Z, -1, 1);
695 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, sizeof (gpointer) * (index + 1), sizeof(gpointer));
696 /* is the slot null? */
697 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
698 /* if yes, jump to actual trampoline */
699 rgctx_null_jumps [depth + 1] = code;
700 amd64_branch8 (code, X86_CC_Z, -1, 1);
701 /* otherwise return */
704 for (i = mrgctx ? 1 : 0; i <= depth + 1; ++i)
705 mono_amd64_patch (rgctx_null_jumps [i], code);
707 g_free (rgctx_null_jumps);
709 if (MONO_ARCH_VTABLE_REG != AMD64_ARG_REG1) {
710 /* move the rgctx pointer to the VTABLE register */
711 amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer));
715 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, g_strdup_printf ("specific_trampoline_lazy_fetch_%u", slot));
716 amd64_jump_reg (code, AMD64_R11);
718 tramp = (guint8 *)mono_arch_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
720 /* jump to the actual trampoline */
721 amd64_jump_code (code, tramp);
724 mono_arch_flush_icache (buf, code - buf);
725 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
727 g_assert (code - buf <= tramp_size);
728 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
730 char *name = mono_get_rgctx_fetch_trampoline_name (slot);
731 *info = mono_tramp_info_create (name, buf, code - buf, ji, unwind_ops);
738 mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboolean aot)
742 MonoJumpInfo *ji = NULL;
748 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
750 unwind_ops = mono_arch_get_cie_program ();
752 // FIXME: Currently, we always go to the slow path.
753 /* This receives a <slot, trampoline> in the rgctx arg reg. */
754 /* Load trampoline addr */
755 amd64_mov_reg_membase (code, AMD64_R11, MONO_ARCH_RGCTX_REG, 8, 8);
756 /* move the rgctx pointer to the VTABLE register */
757 amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer));
758 /* Jump to the trampoline */
759 amd64_jump_reg (code, AMD64_R11);
761 mono_arch_flush_icache (buf, code - buf);
762 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
764 g_assert (code - buf <= tramp_size);
765 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
768 *info = mono_tramp_info_create ("rgctx_fetch_trampoline_general", buf, code - buf, ji, unwind_ops);
774 mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg)
776 /* FIXME: This is not thread safe */
777 guint8 *code = (guint8 *)ji->code_start;
779 amd64_mov_reg_imm (code, AMD64_ARG_REG1, func_arg);
780 amd64_mov_reg_imm (code, AMD64_R11, func);
782 x86_push_imm (code, (guint64)func_arg);
783 amd64_call_reg (code, AMD64_R11);
785 #endif /* !DISABLE_JIT */
788 * mono_arch_get_call_target:
790 * Return the address called by the code before CODE if exists.
793 mono_arch_get_call_target (guint8 *code)
795 if (code [-5] == 0xe8) {
796 gint32 disp = *(gint32*)(code - 4);
797 guint8 *target = code + disp;
806 * mono_arch_get_plt_info_offset:
808 * Return the PLT info offset belonging to the plt entry PLT_ENTRY.
811 mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code)
813 return *(guint32*)(plt_entry + 6);
818 * mono_arch_create_sdb_trampoline:
820 * Return a trampoline which captures the current context, passes it to
821 * debugger_agent_single_step_from_context ()/debugger_agent_breakpoint_from_context (),
822 * then restores the (potentially changed) context.
825 mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot)
827 int tramp_size = 512;
828 int i, framesize, ctx_offset, cfa_offset, gregs_offset;
830 GSList *unwind_ops = NULL;
831 MonoJumpInfo *ji = NULL;
833 code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
837 /* Reserve space where the callee can save the argument registers */
838 framesize += 4 * sizeof (mgreg_t);
841 ctx_offset = framesize;
842 framesize += sizeof (MonoContext);
844 framesize = ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT);
848 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, 8);
849 // IP saved at CFA - 8
850 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RIP, -cfa_offset);
852 amd64_push_reg (code, AMD64_RBP);
853 cfa_offset += sizeof(mgreg_t);
854 mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
855 mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RBP, - cfa_offset);
857 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
858 mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
859 mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
860 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
862 gregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
864 /* Initialize a MonoContext structure on the stack */
865 for (i = 0; i < AMD64_NREG; ++i) {
866 if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_RBP)
867 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (i * sizeof (mgreg_t)), i, sizeof (mgreg_t));
869 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 0, sizeof (mgreg_t));
870 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RBP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
871 amd64_lea_membase (code, AMD64_R11, AMD64_RBP, 2 * sizeof (mgreg_t));
872 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RSP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
873 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, sizeof (mgreg_t), sizeof (mgreg_t));
874 amd64_mov_membase_reg (code, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), AMD64_R11, sizeof (mgreg_t));
876 /* Call the single step/breakpoint function in sdb */
877 amd64_lea_membase (code, AMD64_ARG_REG1, AMD64_RSP, ctx_offset);
881 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "debugger_agent_single_step_from_context");
883 code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "debugger_agent_breakpoint_from_context");
886 amd64_mov_reg_imm (code, AMD64_R11, debugger_agent_single_step_from_context);
888 amd64_mov_reg_imm (code, AMD64_R11, debugger_agent_breakpoint_from_context);
890 amd64_call_reg (code, AMD64_R11);
892 /* Restore registers from ctx */
893 for (i = 0; i < AMD64_NREG; ++i) {
894 if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_RBP)
895 amd64_mov_reg_membase (code, i, AMD64_RSP, gregs_offset + (i * sizeof (mgreg_t)), sizeof (mgreg_t));
897 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RBP * sizeof (mgreg_t)), sizeof (mgreg_t));
898 amd64_mov_membase_reg (code, AMD64_RBP, 0, AMD64_R11, sizeof (mgreg_t));
899 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), sizeof (mgreg_t));
900 amd64_mov_membase_reg (code, AMD64_RBP, sizeof (mgreg_t), AMD64_R11, sizeof (mgreg_t));
903 amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
904 amd64_pop_reg (code, AMD64_RBP);
905 mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
909 cfa_offset -= sizeof (mgreg_t);
910 mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
913 mono_arch_flush_icache (code, code - buf);
914 MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
915 g_assert (code - buf <= tramp_size);
916 g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
918 const char *tramp_name = single_step ? "sdb_single_step_trampoline" : "sdb_breakpoint_trampoline";
919 *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
925 * mono_arch_get_enter_icall_trampoline:
927 * A trampoline that handles the transition from interpreter into native
928 * world. It requiers to set up a descriptor (InterpMethodArguments), so the
929 * trampoline can translate the arguments into the native calling convention.
931 * See also `build_args_from_sig ()` in interp.c.
934 mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
936 #ifdef ENABLE_INTERPRETER
937 const int gregs_num = INTERP_ICALL_TRAMP_IARGS;
938 const int fregs_num = INTERP_ICALL_TRAMP_FARGS;
939 guint8 *start = NULL, *code, *label_gexits [gregs_num], *label_fexits [fregs_num], *label_leave_tramp [3], *label_is_float_ret;
940 MonoJumpInfo *ji = NULL;
941 GSList *unwind_ops = NULL;
942 static int farg_regs[] = {AMD64_XMM0, AMD64_XMM1, AMD64_XMM2};
943 int buf_len, i, framesize = 0, off_rbp, off_methodargs, off_targetaddr;
945 buf_len = 512 + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0);
946 start = code = (guint8 *) mono_global_codeman_reserve (buf_len);
948 off_rbp = -framesize;
950 framesize += sizeof (mgreg_t);
951 off_methodargs = -framesize;
953 framesize += sizeof (mgreg_t);
954 off_targetaddr = -framesize;
956 framesize += (gregs_num - PARAM_REGS) * sizeof (mgreg_t);
958 amd64_push_reg (code, AMD64_RBP);
959 amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof (mgreg_t));
960 amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
962 /* save InterpMethodArguments* onto stack */
963 amd64_mov_membase_reg (code, AMD64_RBP, off_methodargs, AMD64_ARG_REG2, sizeof (mgreg_t));
965 /* save target address on stack */
966 amd64_mov_membase_reg (code, AMD64_RBP, off_targetaddr, AMD64_ARG_REG1, sizeof (mgreg_t));
968 /* load pointer to InterpMethodArguments* into R11 */
969 amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, 8);
971 /* move flen into RAX */
972 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, flen), sizeof (mgreg_t));
973 /* load pointer to fargs into R11 */
974 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, fargs), sizeof (mgreg_t));
976 for (i = 0; i < fregs_num; ++i) {
977 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
978 label_fexits [i] = code;
979 x86_branch8 (code, X86_CC_Z, 0, FALSE);
981 amd64_sse_movsd_reg_membase (code, farg_regs [i], AMD64_R11, i * sizeof (double));
982 amd64_dec_reg_size (code, AMD64_RAX, 1);
985 for (i = 0; i < fregs_num; i++)
986 x86_patch (label_fexits [i], code);
988 /* load pointer to InterpMethodArguments* into R11 */
989 amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, sizeof (mgreg_t));
990 /* move ilen into RAX */
991 amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, ilen), sizeof (mgreg_t));
993 int stack_offset = 0;
994 for (i = 0; i < gregs_num; i++) {
995 amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
996 label_gexits [i] = code;
997 x86_branch32 (code, X86_CC_Z, 0, FALSE);
999 /* load pointer to InterpMethodArguments* into R11 */
1000 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1001 /* load pointer to iargs into R11 */
1002 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, iargs), sizeof (mgreg_t));
1004 if (i < PARAM_REGS) {
1005 amd64_mov_reg_membase (code, param_regs [i], AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
1007 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
1008 amd64_mov_membase_reg (code, AMD64_RSP, stack_offset, AMD64_R11, sizeof (mgreg_t));
1009 stack_offset += sizeof (mgreg_t);
1011 amd64_dec_reg_size (code, AMD64_RAX, 1);
1014 for (i = 0; i < gregs_num; i++)
1015 x86_patch (label_gexits [i], code);
1017 /* load target addr */
1018 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_targetaddr, sizeof (mgreg_t));
1020 /* call into native function */
1021 amd64_call_reg (code, AMD64_R11);
1023 /* load InterpMethodArguments */
1024 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1026 /* load is_float_ret */
1027 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, is_float_ret), sizeof (mgreg_t));
1029 /* check if a float return value is expected */
1030 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1032 label_is_float_ret = code;
1033 x86_branch8 (code, X86_CC_NZ, 0, FALSE);
1036 /* load InterpMethodArguments */
1037 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1039 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t));
1041 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1042 label_leave_tramp [0] = code;
1043 x86_branch8 (code, X86_CC_Z, 0, FALSE);
1045 amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, sizeof (mgreg_t));
1047 label_leave_tramp [1] = code;
1048 x86_jump8 (code, 0);
1051 x86_patch (label_is_float_ret, code);
1052 /* load InterpMethodArguments */
1053 amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
1055 amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t));
1057 amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
1058 label_leave_tramp [2] = code;
1059 x86_branch8 (code, X86_CC_Z, 0, FALSE);
1061 amd64_sse_movsd_membase_reg (code, AMD64_R11, 0, AMD64_XMM0);
1063 for (i = 0; i < 3; i++)
1064 x86_patch (label_leave_tramp [i], code);
1066 amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
1067 amd64_pop_reg (code, AMD64_RBP);
1070 g_assert (code - start < buf_len);
1072 mono_arch_flush_icache (start, code - start);
1073 MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL));
1076 *info = mono_tramp_info_create ("enter_icall_trampoline", start, code - start, ji, unwind_ops);
1080 g_assert_not_reached ();
1082 #endif /* ENABLE_INTERPRETER */
1084 #endif /* !DISABLE_JIT */
1088 mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr)
1090 g_assert_not_reached ();
1095 mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr)
1097 g_assert_not_reached ();
1102 mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
1104 g_assert_not_reached ();
1109 mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
1111 g_assert_not_reached ();
1116 mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
1118 g_assert_not_reached ();
1123 mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboolean aot)
1125 g_assert_not_reached ();
1130 mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg)
1132 g_assert_not_reached ();
1137 mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot)
1139 g_assert_not_reached ();
1144 mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
1146 g_assert_not_reached ();
1149 #endif /* DISABLE_JIT */