diff options
Diffstat (limited to 'trunk/vm.h')
| -rw-r--r-- | trunk/vm.h | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/trunk/vm.h b/trunk/vm.h new file mode 100644 index 0000000000..c485cae80b --- /dev/null +++ b/trunk/vm.h @@ -0,0 +1,257 @@ +/********************************************************************** + + 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; + +extern VALUE rb_cEnv; +extern VALUE ruby_vm_global_state_version; +extern VALUE ruby_vm_redefined_flag; + + +/** + * VM Debug Level + * + * debug level: + * 0: no debug output + * 1: show instruction name + * 2: show stack frame when control stack frame is changed + * 3: show stack status + * 4: show register + * 5: + * 10: gc check + */ + + +#ifndef VMDEBUG +#define VMDEBUG 0 +#endif + +#if 0 +#undef VMDEBUG +#define VMDEBUG 3 +#endif + +#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_CFP_CNT(th, cfp) \ + ((rb_control_frame_t *)(th->stack + th->stack_size) - (rb_control_frame_t *)(cfp)) +#define VM_SP_CNT(th, sp) ((sp) - (th)->stack) + +/* + env{ + env[0] // special (block or prev env) + env[1] // env object + env[2] // prev env val + }; + */ + +#define ENV_IN_HEAP_P(th, env) \ + (!((th)->stack < (env) && (env) < ((th)->stack + (th)->stack_size))) +#define ENV_VAL(env) ((env)[1]) + +#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) + +/* VM state version */ + +#define GET_VM_STATE_VERSION() (ruby_vm_global_state_version) +#define INC_VM_STATE_VERSION() \ + (ruby_vm_global_state_version = (ruby_vm_global_state_version+1) & 0x8fffffff) + +#define BOP_PLUS 0x01 +#define BOP_MINUS 0x02 +#define BOP_MULT 0x04 +#define BOP_DIV 0x08 +#define BOP_MOD 0x10 +#define BOP_EQ 0x20 +#define BOP_LT 0x40 +#define BOP_LE 0x80 +#define BOP_LTLT 0x100 +#define BOP_AREF 0x200 +#define BOP_ASET 0x400 +#define BOP_LENGTH 0x800 +#define BOP_SUCC 0x1000 +#define BOP_GT 0x2000 +#define BOP_GE 0x4000 +#define BOP_NOT 0x8000 +#define BOP_NEQ 0x10000 + +#endif /* RUBY_VM_H */ |