Go to the documentation of this file.00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012 #ifndef RUBY_VM_EXEC_H
00013 #define RUBY_VM_EXEC_H
00014
00015 typedef long OFFSET;
00016 typedef unsigned long lindex_t;
00017 typedef unsigned long dindex_t;
00018 typedef rb_num_t GENTRY;
00019 typedef rb_iseq_t *ISEQ;
00020
00021 #ifdef COLLECT_USAGE_ANALYSIS
00022 #define USAGE_ANALYSIS_INSN(insn) vm_analysis_insn(insn)
00023 #define USAGE_ANALYSIS_OPERAND(insn, n, op) vm_analysis_operand(insn, n, (VALUE)op)
00024 #define USAGE_ANALYSIS_REGISTER(reg, s) vm_analysis_register(reg, s)
00025 #else
00026 #define USAGE_ANALYSIS_INSN(insn)
00027 #define USAGE_ANALYSIS_OPERAND(insn, n, op)
00028 #define USAGE_ANALYSIS_REGISTER(reg, s)
00029 #endif
00030
00031 #ifdef __GCC__
00032
00033 #define PREFETCH(pc)
00034 #else
00035 #define PREFETCH(pc)
00036 #endif
00037
00038 #if VMDEBUG > 0
00039 #define debugs printf
00040 #define DEBUG_ENTER_INSN(insn) \
00041 debug_print_pre(th, GET_CFP());
00042
00043 #if OPT_STACK_CACHING
00044 #define SC_REGS() , reg_a, reg_b
00045 #else
00046 #define SC_REGS()
00047 #endif
00048
00049 #define DEBUG_END_INSN() \
00050 debug_print_post(th, GET_CFP() SC_REGS());
00051
00052 #else
00053
00054 #define debugs
00055 #define DEBUG_ENTER_INSN(insn)
00056 #define DEBUG_END_INSN()
00057 #endif
00058
00059 #define throwdebug if(0)printf
00060
00061
00062
00063 #if DISPATCH_XXX
00064 error !
00065
00066 #elif OPT_CALL_THREADED_CODE
00067
00068 #define LABEL(x) insn_func_##x
00069 #define ELABEL(x)
00070 #define LABEL_PTR(x) &LABEL(x)
00071
00072 #define INSN_ENTRY(insn) \
00073 static rb_control_frame_t * \
00074 FUNC_FASTCALL(LABEL(insn))(rb_thread_t *th, rb_control_frame_t *reg_cfp) {
00075
00076 #define END_INSN(insn) return reg_cfp;}
00077
00078 #define NEXT_INSN() return reg_cfp;
00079
00080
00081 #elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
00082
00083
00084 #define LABEL(x) INSN_LABEL_##x
00085 #define ELABEL(x) INSN_ELABEL_##x
00086 #define LABEL_PTR(x) &&LABEL(x)
00087
00088 #define INSN_ENTRY_SIG(insn)
00089
00090
00091 #define INSN_DISPATCH_SIG(insn)
00092
00093 #define INSN_ENTRY(insn) \
00094 LABEL(insn): \
00095 INSN_ENTRY_SIG(insn); \
00096
00097
00098 #if __GNUC__ && (__i386__ || __x86_64__) && __GNUC__ == 3
00099 #define DISPATCH_ARCH_DEPEND_WAY(addr) \
00100 asm volatile("jmp *%0;\t# -- inseted by vm.h\t[length = 2]" : : "r" (addr))
00101
00102 #else
00103 #define DISPATCH_ARCH_DEPEND_WAY(addr) \
00104
00105
00106 #endif
00107
00108
00109
00110 #if OPT_DIRECT_THREADED_CODE
00111
00112
00113 #define TC_DISPATCH(insn) \
00114 INSN_DISPATCH_SIG(insn); \
00115 goto *GET_CURRENT_INSN(); \
00116 ;
00117
00118 #else
00119
00120
00121 #define TC_DISPATCH(insn) \
00122 DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \
00123 INSN_DISPATCH_SIG(insn); \
00124 goto *insns_address_table[GET_CURRENT_INSN()]; \
00125 rb_bug("tc error");
00126
00127
00128 #endif
00129
00130 #define END_INSN(insn) \
00131 DEBUG_END_INSN(); \
00132 TC_DISPATCH(insn); \
00133
00134 #define INSN_DISPATCH() \
00135 TC_DISPATCH(__START__) \
00136 {
00137
00138 #define END_INSNS_DISPATCH() \
00139 rb_bug("unknown insn: %ld", GET_CURRENT_INSN()); \
00140 } \
00141
00142 #define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__)
00143
00144
00145 #else
00146
00147
00148 #define INSN_ENTRY(insn) \
00149 case BIN(insn):
00150
00151 #define END_INSN(insn) \
00152 DEBUG_END_INSN(); \
00153 break;
00154
00155
00156 #define INSN_DISPATCH() \
00157 while(1){ \
00158 switch(GET_CURRENT_INSN()){
00159
00160 #define END_INSNS_DISPATCH() \
00161 default: \
00162 SDR(); \
00163 rb_bug("unknown insn: %ld", GET_CURRENT_INSN()); \
00164 } \
00165 } \
00166
00167 #define NEXT_INSN() goto first
00168
00169 #endif
00170
00171 #define VM_SP_CNT(th, sp) ((sp) - (th)->stack)
00172
00173 #if OPT_CALL_THREADED_CODE
00174 #define THROW_EXCEPTION(exc) do { \
00175 th->errinfo = (VALUE)(exc); \
00176 return 0; \
00177 } while (0)
00178 #else
00179 #define THROW_EXCEPTION(exc) return (VALUE)(exc)
00180 #endif
00181
00182 #define SCREG(r) (reg_##r)
00183
00184 #endif
00185