diff options
Diffstat (limited to 'vm_exec.h')
| -rw-r--r-- | vm_exec.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/vm_exec.h b/vm_exec.h new file mode 100644 index 0000000000..9868b21348 --- /dev/null +++ b/vm_exec.h @@ -0,0 +1,187 @@ +/********************************************************************** + + vm.h - + + $Author$ + created at: 04/01/01 16:56:59 JST + + Copyright (C) 2004-2007 Koichi Sasada + +**********************************************************************/ + +#ifndef RUBY_VM_H +#define RUBY_VM_H + +typedef long OFFSET; +typedef unsigned long lindex_t; +typedef unsigned long dindex_t; +typedef rb_num_t GENTRY; +typedef rb_iseq_t *ISEQ; + +#ifdef COLLECT_USAGE_ANALYSIS +#define USAGE_ANALYSIS_INSN(insn) vm_analysis_insn(insn) +#define USAGE_ANALYSIS_OPERAND(insn, n, op) vm_analysis_operand(insn, n, (VALUE)op) +#define USAGE_ANALYSIS_REGISTER(reg, s) vm_analysis_register(reg, s) +#else +#define USAGE_ANALYSIS_INSN(insn) /* none */ +#define USAGE_ANALYSIS_OPERAND(insn, n, op) /* none */ +#define USAGE_ANALYSIS_REGISTER(reg, s) /* none */ +#endif + +#ifdef __GCC__ +/* TODO: machine dependent prefetch instruction */ +#define PREFETCH(pc) +#else +#define PREFETCH(pc) +#endif + +#if VMDEBUG > 0 +#define debugs printf +#define DEBUG_ENTER_INSN(insn) \ + debug_print_pre(th, GET_CFP()); + +#if OPT_STACK_CACHING +#define SC_REGS() , reg_a, reg_b +#else +#define SC_REGS() +#endif + +#define DEBUG_END_INSN() \ + debug_print_post(th, 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 */ + +#define SDR2(cfp) vm_stack_dump_raw(GET_THREAD(), (cfp)) + + +/************************************************/ +#if 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_thread_t *th, rb_control_frame_t *reg_cfp) { + +#define END_INSN(insn) return reg_cfp;} + +#define NEXT_INSN() return 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) &&LABEL(x) + +#define INSN_ENTRY_SIG(insn) + + +#define INSN_DISPATCH_SIG(insn) + +#define INSN_ENTRY(insn) \ + LABEL(insn): \ + INSN_ENTRY_SIG(insn); \ + +/* dispather */ +#if __GNUC__ && (__i386__ || __x86_64__) && __GNUC__ == 3 +#define DISPATCH_ARCH_DEPEND_WAY(addr) \ + asm volatile("jmp *%0;\t# -- inseted by vm.h\t[length = 2]" : : "r" (addr)) + +#else +#define DISPATCH_ARCH_DEPEND_WAY(addr) \ + /* do nothing */ + +#endif + + +/**********************************/ +#if OPT_DIRECT_THREADED_CODE + +/* for GCC 3.4.x */ +#define TC_DISPATCH(insn) \ + INSN_DISPATCH_SIG(insn); \ + goto *GET_CURRENT_INSN(); \ + ; + +#else +/* token threade code */ + +#define TC_DISPATCH(insn) \ + DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \ + INSN_DISPATCH_SIG(insn); \ + goto *insns_address_table[GET_CURRENT_INSN()]; \ + rb_bug("tc error"); + + +#endif /* DISPATCH_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: %ld", GET_CURRENT_INSN()); \ + } /* end of while loop */ \ + +#define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__) + +/************************************************/ +#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 + +#endif + +#define VM_SP_CNT(th, sp) ((sp) - (th)->stack) + +#if OPT_CALL_THREADED_CODE +#define THROW_EXCEPTION(exc) do { \ + th->errinfo = (VALUE)(exc); \ + return 0; \ +} while (0) +#else +#define THROW_EXCEPTION(exc) return (VALUE)(exc) +#endif + +#define SCREG(r) (reg_##r) + +#endif /* RUBY_VM_H */ |