/********************************************************************** vm.h - $Author$ $Date$ created at: 04/01/01 16:56:59 JST Copyright (C) 2004-2006 Koichi Sasada **********************************************************************/ #ifndef RUBY_VM_H #define RUBY_VM_H typedef long OFFSET; typedef unsigned long rb_num_t; 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) \ asm volatile ( "; #**************************************************\n" \ "\t; #[start] " # insn "\n") \ #define INSN_DISPATCH_SIG(insn) \ asm volatile ( "; #[end ] " # insn "\n"\ "\t; #==================================================\n") \ #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) \ DISPATCH_ARCH_DEPEND_WAY(GET_CURRENT_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]) #define FRAME_MAGIC_METHOD 0x11 #define FRAME_MAGIC_BLOCK 0x21 #define FRAME_MAGIC_CLASS 0x31 #define FRAME_MAGIC_TOP 0x41 #define FRAME_MAGIC_FINISH 0x51 #define FRAME_MAGIC_CFUNC 0x61 #define FRAME_MAGIC_PROC 0x71 #define FRAME_MAGIC_IFUNC 0x81 #define FRAME_MAGIC_EVAL 0x91 #define FRAME_MAGIC_LAMBDA 0xa1 #define FRAME_MAGIC_MASK 0xff #define VM_FRAME_FLAG(type) ((VALUE)((type) & FRAME_MAGIC_MASK)) #define VM_FRAME_TYPE(cfp) \ ((cfp)->flag & FRAME_MAGIC_MASK) #define RUBYVM_CFUNC_FRAME_P(cfp) \ (VM_FRAME_TYPE(cfp) == FRAME_MAGIC_CFUNC) #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 #endif /* RUBY_VM_H */