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| #ifndef RUBY_VM_EXEC_H | |
| #define RUBY_VM_EXEC_H | |
| /********************************************************************** | |
| vm.h - | |
| $Author$ | |
| created at: 04/01/01 16:56:59 JST | |
| Copyright (C) 2004-2007 Koichi Sasada | |
| **********************************************************************/ | |
| typedef long OFFSET; | |
| typedef unsigned long lindex_t; | |
| typedef VALUE GENTRY; | |
| typedef rb_iseq_t *ISEQ; | |
| #if VMDEBUG > 0 | |
| #define debugs printf | |
| #define DEBUG_ENTER_INSN(insn) \ | |
| rb_vmdebug_debug_print_pre(ec, GET_CFP(), GET_PC()); | |
| #if OPT_STACK_CACHING | |
| #define SC_REGS() , reg_a, reg_b | |
| #else | |
| #define SC_REGS() | |
| #endif | |
| #define DEBUG_END_INSN() \ | |
| rb_vmdebug_debug_print_post(ec, GET_CFP() SC_REGS()); | |
| #else | |
| #define debugs | |
| #define DEBUG_ENTER_INSN(insn) | |
| #define DEBUG_END_INSN() | |
| #endif | |
| #define throwdebug if(0)printf | |
| /* #define throwdebug printf */ | |
| #ifndef USE_INSNS_COUNTER | |
| #define USE_INSNS_COUNTER 0 | |
| #endif | |
| /************************************************/ | |
| #if defined(DISPATCH_XXX) | |
| error ! | |
| /************************************************/ | |
| #elif OPT_CALL_THREADED_CODE | |
| #define LABEL(x) insn_func_##x | |
| #define ELABEL(x) | |
| #define LABEL_PTR(x) &LABEL(x) | |
| #define INSN_ENTRY(insn) \ | |
| static rb_control_frame_t * \ | |
| FUNC_FASTCALL(LABEL(insn))(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp) { | |
| #define END_INSN(insn) return reg_cfp;} | |
| #define NEXT_INSN() return reg_cfp; | |
| #define START_OF_ORIGINAL_INSN(x) /* ignore */ | |
| #define DISPATCH_ORIGINAL_INSN(x) return LABEL(x)(ec, reg_cfp); | |
| /************************************************/ | |
| #elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE | |
| /* threaded code with gcc */ | |
| #define LABEL(x) INSN_LABEL_##x | |
| #define ELABEL(x) INSN_ELABEL_##x | |
| #define LABEL_PTR(x) RB_GNUC_EXTENSION(&&LABEL(x)) | |
| #define INSN_ENTRY_SIG(insn) \ | |
| if (0) fprintf(stderr, "exec: %s@(%"PRIdPTRDIFF", %"PRIdPTRDIFF")@%s:%u\n", #insn, \ | |
| (reg_pc - reg_cfp->iseq->body->iseq_encoded), \ | |
| (reg_cfp->pc - reg_cfp->iseq->body->iseq_encoded), \ | |
| RSTRING_PTR(rb_iseq_path(reg_cfp->iseq)), \ | |
| rb_iseq_line_no(reg_cfp->iseq, reg_pc - reg_cfp->iseq->body->iseq_encoded)); \ | |
| if (USE_INSNS_COUNTER) vm_insns_counter_count_insn(BIN(insn)); | |
| #define INSN_DISPATCH_SIG(insn) | |
| #define INSN_ENTRY(insn) \ | |
| LABEL(insn): \ | |
| INSN_ENTRY_SIG(insn); \ | |
| /**********************************/ | |
| #if OPT_DIRECT_THREADED_CODE | |
| /* for GCC 3.4.x */ | |
| #define TC_DISPATCH(insn) \ | |
| INSN_DISPATCH_SIG(insn); \ | |
| RB_GNUC_EXTENSION_BLOCK(goto *(void const *)GET_CURRENT_INSN()); \ | |
| ; | |
| #else | |
| /* token threaded code */ | |
| /* dispatcher */ | |
| #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && __GNUC__ == 3 | |
| #define DISPATCH_ARCH_DEPEND_WAY(addr) \ | |
| __asm__ __volatile__("jmp *%0;\t# -- inserted by vm.h\t[length = 2]" : : "r" (addr)) | |
| #else | |
| #define DISPATCH_ARCH_DEPEND_WAY(addr) \ | |
| /* do nothing */ | |
| #endif | |
| #define TC_DISPATCH(insn) \ | |
| DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \ | |
| INSN_DISPATCH_SIG(insn); \ | |
| RB_GNUC_EXTENSION_BLOCK(goto *insns_address_table[GET_CURRENT_INSN()]); \ | |
| rb_bug("tc error"); | |
| #endif /* OPT_DIRECT_THREADED_CODE */ | |
| #define END_INSN(insn) \ | |
| DEBUG_END_INSN(); \ | |
| TC_DISPATCH(insn); | |
| #define INSN_DISPATCH() \ | |
| TC_DISPATCH(__START__) \ | |
| { | |
| #define END_INSNS_DISPATCH() \ | |
| rb_bug("unknown insn: %"PRIdVALUE, GET_CURRENT_INSN()); \ | |
| } /* end of while loop */ \ | |
| #define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__) | |
| #define START_OF_ORIGINAL_INSN(x) start_of_##x: | |
| #define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x; | |
| /************************************************/ | |
| #else /* no threaded code */ | |
| /* most common method */ | |
| #define INSN_ENTRY(insn) \ | |
| case BIN(insn): | |
| #define END_INSN(insn) \ | |
| DEBUG_END_INSN(); \ | |
| break; | |
| #define INSN_DISPATCH() \ | |
| while (1) { \ | |
| switch (GET_CURRENT_INSN()) { | |
| #define END_INSNS_DISPATCH() \ | |
| default: \ | |
| SDR(); \ | |
| rb_bug("unknown insn: %ld", GET_CURRENT_INSN()); \ | |
| } /* end of switch */ \ | |
| } /* end of while loop */ \ | |
| #define NEXT_INSN() goto first | |
| #define START_OF_ORIGINAL_INSN(x) start_of_##x: | |
| #define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x; | |
| #endif | |
| #define VM_SP_CNT(ec, sp) ((sp) - (ec)->vm_stack) | |
| #ifdef MJIT_HEADER | |
| #define THROW_EXCEPTION(exc) do { \ | |
| ec->errinfo = (VALUE)(exc); \ | |
| EC_JUMP_TAG(ec, ec->tag->state); \ | |
| } while (0) | |
| #else | |
| #if OPT_CALL_THREADED_CODE | |
| #define THROW_EXCEPTION(exc) do { \ | |
| ec->errinfo = (VALUE)(exc); \ | |
| return 0; \ | |
| } while (0) | |
| #else | |
| #define THROW_EXCEPTION(exc) return (VALUE)(exc) | |
| #endif | |
| #endif | |
| #define SCREG(r) (reg_##r) | |
| #define VM_DEBUG_STACKOVERFLOW 0 | |
| #if VM_DEBUG_STACKOVERFLOW | |
| #define CHECK_VM_STACK_OVERFLOW_FOR_INSN CHECK_VM_STACK_OVERFLOW | |
| #else | |
| #define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin) | |
| #endif | |
| #define INSN_LABEL2(insn, name) INSN_LABEL_ ## insn ## _ ## name | |
| #define INSN_LABEL(x) INSN_LABEL2(NAME_OF_CURRENT_INSN, x) | |
| #endif /* RUBY_VM_EXEC_H */ |