зеркало из https://github.com/github/ruby.git
281 строка
6.3 KiB
C
281 строка
6.3 KiB
C
/**********************************************************************
|
|
|
|
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 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)
|
|
|
|
|
|
#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) \
|
|
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_BITS 8
|
|
#define FRAME_MAGIC_MASK (~(~0<<FRAME_MAGIC_MASK_BITS))
|
|
|
|
#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
|
|
#define BOP_NOT 0x8000
|
|
#define BOP_NEQ 0x10000
|
|
|
|
#endif /* RUBY_VM_H */
|