X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mono%2Fmini%2Ftramp-amd64.c;h=365b0ae81630cb6ef7d753bb016931ba1d2bcaf6;hb=HEAD;hp=cf769a9e5305d3319ac8e1eed0e4167cc6102b6c;hpb=7f51d473ef1a8bcb08ba488cb35500445a501b39;p=mono.git diff --git a/mono/mini/tramp-amd64.c b/mono/mini/tramp-amd64.c index cf769a9e530..365b0ae8163 100644 --- a/mono/mini/tramp-amd64.c +++ b/mono/mini/tramp-amd64.c @@ -1,9 +1,11 @@ -/* - * tramp-amd64.c: JIT trampoline code for amd64 +/** + * \file + * JIT trampoline code for amd64 * * Authors: * Dietmar Maurer (dietmar@ximian.com) * Zoltan Varga (vargaz@gmail.com) + * Johan Lorensson (lateralusx.github@gmail.com) * * (C) 2001 Ximian, Inc. * Copyright 2003-2011 Novell, Inc (http://www.novell.com) @@ -18,7 +20,6 @@ #include #include #include -#include #include #include #include @@ -29,10 +30,15 @@ #include "mini-amd64.h" #include "debugger-agent.h" +#ifdef ENABLE_INTERPRETER +#include "interp/interp.h" +#endif + #define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1)) #define IS_REX(inst) (((inst) >= 0x40) && ((inst) <= 0x4f)) +#ifndef DISABLE_JIT /* * mono_arch_get_unbox_trampoline: * @m: method pointer @@ -53,7 +59,7 @@ mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr) this_reg = mono_arch_get_this_arg_reg (NULL); - start = code = (guint8 *)mono_domain_code_reserve (domain, size); + start = code = (guint8 *)mono_domain_code_reserve (domain, size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)); unwind_ops = mono_arch_get_cie_program (); @@ -62,9 +68,10 @@ mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr) amd64_mov_reg_imm (code, AMD64_RAX, addr); amd64_jump_reg (code, AMD64_RAX); g_assert ((code - start) < size); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0))); mono_arch_flush_icache (start, code - start); - mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m); + MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m)); mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain); @@ -74,10 +81,10 @@ mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr) /* * mono_arch_get_static_rgctx_trampoline: * - * Create a trampoline which sets RGCTX_REG to MRGCTX, then jumps to ADDR. + * Create a trampoline which sets RGCTX_REG to ARG, then jumps to ADDR. */ gpointer -mono_arch_get_static_rgctx_trampoline (MonoMethod *m, MonoMethodRuntimeGenericContext *mrgctx, gpointer addr) +mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr) { guint8 *code, *start; GSList *unwind_ops; @@ -95,21 +102,23 @@ mono_arch_get_static_rgctx_trampoline (MonoMethod *m, MonoMethodRuntimeGenericCo buf_len = 30; #endif - start = code = (guint8 *)mono_domain_code_reserve (domain, buf_len); + start = code = (guint8 *)mono_domain_code_reserve (domain, buf_len + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)); unwind_ops = mono_arch_get_cie_program (); - amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, mrgctx); + amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, arg); amd64_jump_code (code, addr); g_assert ((code - start) < buf_len); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0))); mono_arch_flush_icache (start, code - start); - mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL)); mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain); return start; } +#endif /* !DISABLE_JIT */ #ifdef _WIN64 // Workaround lack of Valgrind support for 64-bit Windows @@ -135,6 +144,7 @@ mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr) if (((code [-13] == 0x49) && (code [-12] == 0xbb)) || (code [-5] == 0xe8)) { if (code [-5] != 0xe8) { if (can_write) { + g_assert ((guint64)(orig_code - 11) % 8 == 0); InterlockedExchangePointer ((gpointer*)(orig_code - 11), addr); VALGRIND_DISCARD_TRANSLATIONS (orig_code - 11, sizeof (gpointer)); } @@ -153,7 +163,7 @@ mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr) addr = thunk_start; g_assert ((((guint64)(addr)) >> 32) == 0); mono_arch_flush_icache (thunk_start, thunk_code - thunk_start); - mono_profiler_code_buffer_new (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL)); } if (can_write) { InterlockedExchange ((gint32*)(orig_code - 4), ((gint64)addr - (gint64)orig_code)); @@ -171,6 +181,7 @@ mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr) } } +#ifndef DISABLE_JIT guint8* mono_arch_create_llvm_native_thunk (MonoDomain *domain, guint8 *addr) { @@ -187,9 +198,10 @@ mono_arch_create_llvm_native_thunk (MonoDomain *domain, guint8 *addr) *(guint64*)thunk_code = (guint64)addr; addr = thunk_start; mono_arch_flush_icache (thunk_start, thunk_code - thunk_start); - mono_profiler_code_buffer_new (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (thunk_start, thunk_code - thunk_start, MONO_PROFILER_CODE_BUFFER_HELPER, NULL)); return addr; } +#endif /* !DISABLE_JIT */ void mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) @@ -208,6 +220,7 @@ mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *a InterlockedExchangePointer (plt_jump_table_entry, addr); } +#ifndef DISABLE_JIT static void stack_unaligned (MonoTrampolineType tramp_type) { @@ -227,12 +240,12 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf MonoJumpInfo *ji = NULL; const guint kMaxCodeSize = 630; - if (tramp_type == MONO_TRAMPOLINE_JUMP || tramp_type == MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) + if (tramp_type == MONO_TRAMPOLINE_JUMP) has_caller = FALSE; else has_caller = TRUE; - code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize); + code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE); /* Compute stack frame size and offsets */ offset = 0; @@ -301,6 +314,7 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf orig_rsp_to_rbp_offset -= sizeof(mgreg_t); amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t)); mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP); + mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0); amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize); /* Compute the trampoline address from the return address */ @@ -366,43 +380,38 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf mono_amd64_patch (br [0], code); //amd64_breakpoint (code); - if (tramp_type != MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) { - /* Obtain the trampoline argument which is encoded in the instruction stream */ - if (aot) { - /* Load the GOT offset */ - amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer)); - /* - * r11 points to a call *(%rip) instruction, load the - * pc-relative offset from the instruction itself. - */ - amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 3, 4); - /* 7 is the length of the call, 8 is the offset to the next got slot */ - amd64_alu_reg_imm_size (code, X86_ADD, AMD64_RAX, 7 + sizeof (gpointer), sizeof(gpointer)); - /* Compute the address of the GOT slot */ - amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, sizeof(gpointer)); - /* Load the value */ - amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer)); - } else { - amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer)); - amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 5, 1); - amd64_widen_reg (code, AMD64_RAX, AMD64_RAX, TRUE, FALSE); - amd64_alu_reg_imm_size (code, X86_CMP, AMD64_RAX, 4, 1); - br [0] = code; - x86_branch8 (code, X86_CC_NE, 6, FALSE); - /* 32 bit immediate */ - amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 4); - br [1] = code; - x86_jump8 (code, 10); - /* 64 bit immediate */ - mono_amd64_patch (br [0], code); - amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 8); - mono_amd64_patch (br [1], code); - } - amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer)); + /* Obtain the trampoline argument which is encoded in the instruction stream */ + if (aot) { + /* Load the GOT offset */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer)); + /* + * r11 points to a call *(%rip) instruction, load the + * pc-relative offset from the instruction itself. + */ + amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 3, 4); + /* 7 is the length of the call, 8 is the offset to the next got slot */ + amd64_alu_reg_imm_size (code, X86_ADD, AMD64_RAX, 7 + sizeof (gpointer), sizeof(gpointer)); + /* Compute the address of the GOT slot */ + amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, sizeof(gpointer)); + /* Load the value */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer)); } else { - amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, saved_regs_offset + (MONO_AMD64_ARG_REG1 * sizeof(mgreg_t)), sizeof(mgreg_t)); - amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer)); + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer)); + amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 5, 1); + amd64_widen_reg (code, AMD64_RAX, AMD64_RAX, TRUE, FALSE); + amd64_alu_reg_imm_size (code, X86_CMP, AMD64_RAX, 4, 1); + br [0] = code; + x86_branch8 (code, X86_CC_NE, 6, FALSE); + /* 32 bit immediate */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 4); + br [1] = code; + x86_jump8 (code, 10); + /* 64 bit immediate */ + mono_amd64_patch (br [0], code); + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 8); + mono_amd64_patch (br [1], code); } + amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer)); /* Save LMF begin */ @@ -500,7 +509,13 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf * We have an exception we want to throw in the caller's frame, so pop * the trampoline frame and throw from the caller. */ +#if TARGET_WIN32 + amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0); + amd64_pop_reg (code, AMD64_RBP); + mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP); +#else amd64_leave (code); +#endif /* We are in the parent frame, the exception is in rax */ /* * EH is initialized after trampolines, so get the address of the variable @@ -532,7 +547,13 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t))); /* Restore stack */ +#if TARGET_WIN32 + amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0); + amd64_pop_reg (code, AMD64_RBP); + mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP); +#else amd64_leave (code); +#endif cfa_offset -= sizeof (mgreg_t); mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset); @@ -546,9 +567,10 @@ mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInf } g_assert ((code - buf) <= kMaxCodeSize); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE)); mono_arch_flush_icache (buf, code - buf); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL)); tramp_name = mono_get_generic_trampoline_name (tramp_type); *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops); @@ -605,7 +627,7 @@ mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_ty *code_len = size; mono_arch_flush_icache (buf, size); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type)); + MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type))); return buf; } @@ -637,7 +659,7 @@ mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info tramp_size = 64 + 8 * depth; - code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size); + code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)); unwind_ops = mono_arch_get_cie_program (); @@ -684,8 +706,10 @@ mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info g_free (rgctx_null_jumps); - /* move the rgctx pointer to the VTABLE register */ - amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer)); + if (MONO_ARCH_VTABLE_REG != AMD64_ARG_REG1) { + /* move the rgctx pointer to the VTABLE register */ + amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer)); + } if (aot) { code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, g_strdup_printf ("specific_trampoline_lazy_fetch_%u", slot)); @@ -698,9 +722,10 @@ mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info } mono_arch_flush_icache (buf, code - buf); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL)); g_assert (code - buf <= tramp_size); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0))); char *name = mono_get_rgctx_fetch_trampoline_name (slot); *info = mono_tramp_info_create (name, buf, code - buf, ji, unwind_ops); @@ -720,7 +745,7 @@ mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboo g_assert (aot); tramp_size = 64; - code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size); + code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)); unwind_ops = mono_arch_get_cie_program (); @@ -734,9 +759,10 @@ mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboo amd64_jump_reg (code, AMD64_R11); mono_arch_flush_icache (buf, code - buf); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL)); g_assert (code - buf <= tramp_size); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0))); if (info) *info = mono_tramp_info_create ("rgctx_fetch_trampoline_general", buf, code - buf, ji, unwind_ops); @@ -756,82 +782,7 @@ mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg) x86_push_imm (code, (guint64)func_arg); amd64_call_reg (code, AMD64_R11); } - -gpointer -mono_amd64_handler_block_trampoline_helper (void) -{ - MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id); - return jit_tls->handler_block_return_address; -} - -gpointer -mono_arch_create_handler_block_trampoline (MonoTrampInfo **info, gboolean aot) -{ - guint8 *code, *buf; - int tramp_size = 64; - MonoJumpInfo *ji = NULL; - GSList *unwind_ops; - - code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size); - - unwind_ops = mono_arch_get_cie_program (); - - /* - * This trampoline restore the call chain of the handler block then jumps into the code that deals with it. - * We get here from the ret emitted by CEE_ENDFINALLY. - * The stack is misaligned. - */ - /* Align the stack before the call to mono_amd64_handler_block_trampoline_helper() */ -#ifdef TARGET_WIN32 - /* Also make room for the "register parameter stack area" as specified by the Windows x64 ABI (4 64-bit registers) */ - amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8 + 4 * 8); -#else - amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8); -#endif - if (aot) { - code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_handler_block_trampoline_helper"); - amd64_call_reg (code, AMD64_R11); - } else { - amd64_mov_reg_imm (code, AMD64_RAX, mono_amd64_handler_block_trampoline_helper); - amd64_call_reg (code, AMD64_RAX); - } - /* Undo stack alignment */ -#ifdef TARGET_WIN32 - amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 8 + 4 * 8); -#else - amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 8); -#endif - /* Save the result to the stack */ - amd64_push_reg (code, AMD64_RAX); -#ifdef TARGET_WIN32 - /* Make room for the "register parameter stack area" as specified by the Windows x64 ABI (4 64-bit registers) */ - amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 4 * 8); -#endif - if (aot) { - char *name = g_strdup_printf ("trampoline_func_%d", MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD); - code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, name); - amd64_mov_reg_reg (code, AMD64_RAX, AMD64_R11, 8); - } else { - amd64_mov_reg_imm (code, AMD64_RAX, mono_get_trampoline_func (MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD)); - } - /* The stack is aligned */ - amd64_call_reg (code, AMD64_RAX); -#ifdef TARGET_WIN32 - amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 4 * 8); -#endif - /* Load return address */ - amd64_pop_reg (code, AMD64_RAX); - /* The stack is misaligned, thats what the code we branch to expects */ - amd64_jump_reg (code, AMD64_RAX); - - mono_arch_flush_icache (buf, code - buf); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL); - g_assert (code - buf <= tramp_size); - - *info = mono_tramp_info_create ("handler_block_trampoline", buf, code - buf, ji, unwind_ops); - - return buf; -} +#endif /* !DISABLE_JIT */ /* * mono_arch_get_call_target: @@ -862,6 +813,7 @@ mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code) return *(guint32*)(plt_entry + 6); } +#ifndef DISABLE_JIT /* * mono_arch_create_sdb_trampoline: * @@ -872,13 +824,13 @@ mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code) guint8* mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot) { - int tramp_size = 256; + int tramp_size = 512; int i, framesize, ctx_offset, cfa_offset, gregs_offset; guint8 *code, *buf; GSList *unwind_ops = NULL; MonoJumpInfo *ji = NULL; - code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size); + code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE); framesize = 0; #ifdef TARGET_WIN32 @@ -904,6 +856,7 @@ mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gbo amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t)); mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP); + mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0); amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize); gregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs); @@ -946,17 +899,251 @@ mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gbo amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), sizeof (mgreg_t)); amd64_mov_membase_reg (code, AMD64_RBP, sizeof (mgreg_t), AMD64_R11, sizeof (mgreg_t)); +#if TARGET_WIN32 + amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0); + amd64_pop_reg (code, AMD64_RBP); + mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP); +#else amd64_leave (code); +#endif cfa_offset -= sizeof (mgreg_t); mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset); amd64_ret (code); mono_arch_flush_icache (code, code - buf); - mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL); + MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL)); g_assert (code - buf <= tramp_size); + g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE)); const char *tramp_name = single_step ? "sdb_single_step_trampoline" : "sdb_breakpoint_trampoline"; *info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops); return buf; } + +/* + * mono_arch_get_enter_icall_trampoline: + * + * A trampoline that handles the transition from interpreter into native + * world. It requiers to set up a descriptor (InterpMethodArguments), so the + * trampoline can translate the arguments into the native calling convention. + * + * See also `build_args_from_sig ()` in interp.c. + */ +gpointer +mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info) +{ +#ifdef ENABLE_INTERPRETER + const int gregs_num = INTERP_ICALL_TRAMP_IARGS; + const int fregs_num = INTERP_ICALL_TRAMP_FARGS; + guint8 *start = NULL, *code, *label_gexits [gregs_num], *label_fexits [fregs_num], *label_leave_tramp [3], *label_is_float_ret; + MonoJumpInfo *ji = NULL; + GSList *unwind_ops = NULL; + static int farg_regs[] = {AMD64_XMM0, AMD64_XMM1, AMD64_XMM2}; + int buf_len, i, framesize = 0, off_rbp, off_methodargs, off_targetaddr; + + buf_len = 512 + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0); + start = code = (guint8 *) mono_global_codeman_reserve (buf_len); + + off_rbp = -framesize; + + framesize += sizeof (mgreg_t); + off_methodargs = -framesize; + + framesize += sizeof (mgreg_t); + off_targetaddr = -framesize; + + framesize += (gregs_num - PARAM_REGS) * sizeof (mgreg_t); + + amd64_push_reg (code, AMD64_RBP); + amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof (mgreg_t)); + amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT)); + + /* save InterpMethodArguments* onto stack */ + amd64_mov_membase_reg (code, AMD64_RBP, off_methodargs, AMD64_ARG_REG2, sizeof (mgreg_t)); + + /* save target address on stack */ + amd64_mov_membase_reg (code, AMD64_RBP, off_targetaddr, AMD64_ARG_REG1, sizeof (mgreg_t)); + + /* load pointer to InterpMethodArguments* into R11 */ + amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, 8); + + /* move flen into RAX */ + amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, flen), sizeof (mgreg_t)); + /* load pointer to fargs into R11 */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, fargs), sizeof (mgreg_t)); + + for (i = 0; i < fregs_num; ++i) { + amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX); + label_fexits [i] = code; + x86_branch8 (code, X86_CC_Z, 0, FALSE); + + amd64_sse_movsd_reg_membase (code, farg_regs [i], AMD64_R11, i * sizeof (double)); + amd64_dec_reg_size (code, AMD64_RAX, 1); + } + + for (i = 0; i < fregs_num; i++) + x86_patch (label_fexits [i], code); + + /* load pointer to InterpMethodArguments* into R11 */ + amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, sizeof (mgreg_t)); + /* move ilen into RAX */ + amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, ilen), sizeof (mgreg_t)); + + int stack_offset = 0; + for (i = 0; i < gregs_num; i++) { + amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX); + label_gexits [i] = code; + x86_branch32 (code, X86_CC_Z, 0, FALSE); + + /* load pointer to InterpMethodArguments* into R11 */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t)); + /* load pointer to iargs into R11 */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, iargs), sizeof (mgreg_t)); + + if (i < PARAM_REGS) { + amd64_mov_reg_membase (code, param_regs [i], AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t)); + } else { + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t)); + amd64_mov_membase_reg (code, AMD64_RSP, stack_offset, AMD64_R11, sizeof (mgreg_t)); + stack_offset += sizeof (mgreg_t); + } + amd64_dec_reg_size (code, AMD64_RAX, 1); + } + + for (i = 0; i < gregs_num; i++) + x86_patch (label_gexits [i], code); + + /* load target addr */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_targetaddr, sizeof (mgreg_t)); + + /* call into native function */ + amd64_call_reg (code, AMD64_R11); + + /* load InterpMethodArguments */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t)); + + /* load is_float_ret */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, is_float_ret), sizeof (mgreg_t)); + + /* check if a float return value is expected */ + amd64_test_reg_reg (code, AMD64_R11, AMD64_R11); + + label_is_float_ret = code; + x86_branch8 (code, X86_CC_NZ, 0, FALSE); + + /* greg return */ + /* load InterpMethodArguments */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t)); + /* load retval */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t)); + + amd64_test_reg_reg (code, AMD64_R11, AMD64_R11); + label_leave_tramp [0] = code; + x86_branch8 (code, X86_CC_Z, 0, FALSE); + + amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, sizeof (mgreg_t)); + + label_leave_tramp [1] = code; + x86_jump8 (code, 0); + + /* freg return */ + x86_patch (label_is_float_ret, code); + /* load InterpMethodArguments */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t)); + /* load retval */ + amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (InterpMethodArguments, retval), sizeof (mgreg_t)); + + amd64_test_reg_reg (code, AMD64_R11, AMD64_R11); + label_leave_tramp [2] = code; + x86_branch8 (code, X86_CC_Z, 0, FALSE); + + amd64_sse_movsd_membase_reg (code, AMD64_R11, 0, AMD64_XMM0); + + for (i = 0; i < 3; i++) + x86_patch (label_leave_tramp [i], code); + + amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT)); + amd64_pop_reg (code, AMD64_RBP); + amd64_ret (code); + + g_assert (code - start < buf_len); + + mono_arch_flush_icache (start, code - start); + MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL)); + + if (info) + *info = mono_tramp_info_create ("enter_icall_trampoline", start, code - start, ji, unwind_ops); + + return start; +#else + g_assert_not_reached (); + return NULL; +#endif /* ENABLE_INTERPRETER */ +} +#endif /* !DISABLE_JIT */ + +#ifdef DISABLE_JIT +gpointer +mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr) +{ + g_assert_not_reached (); + return NULL; +} + +gpointer +mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr) +{ + g_assert_not_reached (); + return NULL; +} + +gpointer +mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot) +{ + g_assert_not_reached (); + return NULL; +} + +guchar* +mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot) +{ + g_assert_not_reached (); + return NULL; +} + +gpointer +mono_arch_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len) +{ + g_assert_not_reached (); + return NULL; +} + +gpointer +mono_arch_create_general_rgctx_lazy_fetch_trampoline (MonoTrampInfo **info, gboolean aot) +{ + g_assert_not_reached (); + return NULL; +} + +void +mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg) +{ + g_assert_not_reached (); + return; +} + +guint8* +mono_arch_create_sdb_trampoline (gboolean single_step, MonoTrampInfo **info, gboolean aot) +{ + g_assert_not_reached (); + return NULL; +} + +gpointer +mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info) +{ + g_assert_not_reached (); + return NULL; +} +#endif /* DISABLE_JIT */