/usr/include/pike8.0/pike/interpreter_debug.h is in pike8.0-dev 8.0.164-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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|| This file is part of Pike. For copyright information see COPYRIGHT.
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING
|| for more information.
*/
#undef LOW_GET_ARG
#undef LOW_GET_JUMP
#undef LOW_SKIPJUMP
#undef GET_ARG
#undef GET_ARG2
#undef GET_JUMP
#undef SKIPJUMP
#undef DOJUMP
#undef CASE
#undef BREAK
#undef DONE
#undef JUMP_DONE
#define JUMP_DONE DONE
#ifdef HAVE_COMPUTED_GOTO
#define CASE(OP) PIKE_CONCAT(LABEL_,OP): FETCH
#define FETCH (instr = PROG_COUNTER[0])
#ifdef PIKE_DEBUG
#define DONE continue
#else /* !PIKE_DEBUG */
#define DONE do { \
Pike_fp->pc = PROG_COUNTER++; \
goto *instr; \
} while(0)
#endif /* PIKE_DEBUG */
#define LOW_GET_ARG() ((INT32)(ptrdiff_t)(*(PROG_COUNTER++)))
#define LOW_GET_JUMP() ((INT32)(ptrdiff_t)(*(PROG_COUNTER)))
#define LOW_SKIPJUMP() (instr = (++PROG_COUNTER)[0])
#define GET_ARG() LOW_GET_ARG()
#define GET_ARG2() LOW_GET_ARG()
#else /* !HAVE_COMPUTED_GOTO */
#define CASE(X) case (X)-F_OFFSET:
#define DONE break
#define FETCH
#define LOW_GET_ARG() ((PROG_COUNTER++)[0])
#if PIKE_BYTECODE_METHOD == PIKE_BYTECODE_SPARC
#define LOW_GET_JUMP() (PROG_COUNTER[0])
#define LOW_SKIPJUMP() (++PROG_COUNTER)
#else /* PIKE_BYTECODE_METHOD != PIKE_BYTECODE_SPARC */
#define LOW_GET_JUMP() EXTRACT_INT(PROG_COUNTER)
#define LOW_SKIPJUMP() (PROG_COUNTER += sizeof(INT32))
#endif /* PIKE_BYTECODE_METHOD */
#ifdef PIKE_DEBUG
#define GET_ARG() ( \
instr=prefix, \
prefix=0, \
instr += LOW_GET_ARG(), \
DEBUG_LOG_ARG (instr), \
instr)
#define GET_ARG2() ( \
instr=prefix2, \
prefix2=0, \
instr += LOW_GET_ARG(), \
DEBUG_LOG_ARG2 (instr), \
instr)
#else /* !PIKE_DEBUG */
#define GET_ARG() (instr=prefix,prefix=0,instr+LOW_GET_ARG())
#define GET_ARG2() (instr=prefix2,prefix2=0,instr+LOW_GET_ARG())
#endif /* PIKE_DEBUG */
#endif /* HAVE_COMPUTED_GOTO */
#ifndef STEP_BREAK_LINE
#define STEP_BREAK_LINE
#endif
static int eval_instruction(PIKE_OPCODE_T *pc)
{
PIKE_INSTR_T instr;
#ifdef HAVE_COMPUTED_GOTO
static void *strap = &&init_strap;
instr = NULL;
#else /* !HAVE_COMPUTED_GOTO */
unsigned INT32 prefix2=0,prefix=0;
#endif /* HAVE_COMPUTED_GOTO */
/* Variables that are commonly used by the various opcodes.
* They are defined here to reduce the size of the stack frame.
*/
struct svalue tmp, tmp2;
struct external_variable_context loc;
struct program *p;
struct object *o;
struct svalue *s;
PIKE_OPCODE_T *addr;
DO_IF_DEBUG(dynamic_buffer save_buf);
#undef LOCAL_VAR
#define LOCAL_VAR(X) /* Local variable defined above. */
#ifdef HAVE_COMPUTED_GOTO
goto *strap;
normal_strap:
#endif /* HAVE_COMPUTED_GOTO */
debug_malloc_touch(Pike_fp);
while(1)
{
INT32 arg1, arg2;
instr = pc[0];
Pike_fp->pc = pc++;
STEP_BREAK_LINE
#ifdef PIKE_DEBUG
if (d_flag || Pike_interpreter.trace_level > 2)
low_debug_instr_prologue (instr);
#endif
#ifdef HAVE_COMPUTED_GOTO
goto *instr;
#else /* !HAVE_COMPUTED_GOTO */
switch(instr)
{
/* NOTE: The prefix handling is not needed in computed-goto mode. */
/* Support to allow large arguments */
CASE(F_PREFIX_256); prefix+=256; DONE;
CASE(F_PREFIX_512); prefix+=512; DONE;
CASE(F_PREFIX_768); prefix+=768; DONE;
CASE(F_PREFIX_1024); prefix+=1024; DONE;
CASE(F_PREFIX_24BITX256);
prefix += (unsigned INT32)(pc++)[0]<<24;
CASE(F_PREFIX_WORDX256);
prefix += (unsigned INT32)(pc++)[0]<<16;
CASE(F_PREFIX_CHARX256);
prefix += (pc++)[0]<<8;
DONE;
/* Support to allow large arguments */
CASE(F_PREFIX2_256); prefix2+=256; DONE;
CASE(F_PREFIX2_512); prefix2+=512; DONE;
CASE(F_PREFIX2_768); prefix2+=768; DONE;
CASE(F_PREFIX2_1024); prefix2+=1024; DONE;
CASE(F_PREFIX2_24BITX256);
prefix2 += (unsigned INT32)(pc++)[0]<<24;
CASE(F_PREFIX2_WORDX256);
prefix2 += (unsigned INT32)(pc++)[0]<<16;
CASE(F_PREFIX2_CHARX256);
prefix2 += (pc++)[0]<<8;
DONE;
#endif /* HAVE_COMPUTED_GOTO */
#define INTERPRETER
#define OPCODE0(OP, DESC, FLAGS, CODE) CASE(OP); CODE; DONE
#define OPCODE1(OP, DESC, FLAGS, CODE) CASE(OP); { \
arg1=GET_ARG(); \
FETCH; \
CODE; \
} DONE
#define OPCODE2(OP, DESC, FLAGS, CODE) CASE(OP); { \
arg1=GET_ARG(); \
arg2=GET_ARG2(); \
FETCH; \
CODE; \
} DONE
#define OPCODE0_ALIAS(OP, DESC, FLAGS, FUN) OPCODE0(OP, DESC, FLAGS, {FUN();})
#define OPCODE1_ALIAS(OP, DESC, FLAGS, FUN) OPCODE1(OP, DESC, FLAGS, {FUN(arg1);})
#define OPCODE2_ALIAS(OP, DESC, FLAGS, FUN) OPCODE2(OP, DESC, FLAGS, {FUN(arg1, arg2);})
#define OPCODE0_TAIL(OP, DESC, FLAGS, CODE) CASE(OP); CODE
#define OPCODE1_TAIL(OP, DESC, FLAGS, CODE) CASE(OP); CODE
#define OPCODE2_TAIL(OP, DESC, FLAGS, CODE) CASE(OP); CODE
#define OPCODE0_JUMP OPCODE0
#define OPCODE1_JUMP OPCODE1
#define OPCODE2_JUMP OPCODE2
#define OPCODE0_TAILJUMP OPCODE0_TAIL
#define OPCODE1_TAILJUMP OPCODE1_TAIL
#define OPCODE2_TAILJUMP OPCODE2_TAIL
#define OPCODE0_RETURN(OP, DESC, FLAGS, CODE) OPCODE0(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE1_RETURN(OP, DESC, FLAGS, CODE) OPCODE1(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE2_RETURN(OP, DESC, FLAGS, CODE) OPCODE2(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE0_TAILRETURN(OP, DESC, FLAGS, CODE) OPCODE0_TAIL(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE1_TAILRETURN(OP, DESC, FLAGS, CODE) OPCODE1_TAIL(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE2_TAILRETURN(OP, DESC, FLAGS, CODE) OPCODE2_TAIL(OP, DESC, FLAGS | I_RETURN, CODE)
#define OPCODE0_PTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); CODE; DONE
#define OPCODE0_TAILPTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); CODE
/* These are something of a special case as they
* requires a POINTER stored explicitly after
* the instruction itself.
*/
#define OPCODE1_PTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); { \
arg1=GET_ARG(); \
FETCH; \
CODE; \
} DONE
#define OPCODE2_PTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); { \
arg1=GET_ARG(); \
arg2=GET_ARG2(); \
FETCH; \
CODE; \
} DONE
#define OPCODE1_TAILPTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); CODE
#define OPCODE2_TAILPTRJUMP(OP, DESC, FLAGS, CODE) CASE(OP); CODE
#define OPCODE0_BRANCH OPCODE0_PTRJUMP
#define OPCODE1_BRANCH OPCODE1_PTRJUMP
#define OPCODE2_BRANCH OPCODE2_PTRJUMP
#define OPCODE0_TAILBRANCH OPCODE0_TAILPTRJUMP
#define OPCODE1_TAILBRANCH OPCODE1_TAILPTRJUMP
#define OPCODE2_TAILBRANCH OPCODE2_TAILPTRJUMP
#include "interpret_functions.h"
#ifndef HAVE_COMPUTED_GOTO
default:
Pike_fatal("Strange instruction %ld\n",(long)instr);
}
#endif /* !HAVE_COMPUTED_GOTO */
}
/* NOT_REACHED */
#ifdef HAVE_COMPUTED_GOTO
#undef OPCODE0
#undef OPCODE1
#undef OPCODE2
#undef OPCODE0_TAIL
#undef OPCODE1_TAIL
#undef OPCODE2_TAIL
#undef OPCODE0_JUMP
#undef OPCODE1_JUMP
#undef OPCODE2_JUMP
#undef OPCODE0_TAILJUMP
#undef OPCODE1_TAILJUMP
#undef OPCODE2_TAILJUMP
#undef OPCODE0_PTRJUMP
#undef OPCODE1_PTRJUMP
#undef OPCODE2_PTRJUMP
#undef OPCODE0_TAILPTRJUMP
#undef OPCODE1_TAILPTRJUMP
#undef OPCODE2_TAILPTRJUMP
#undef OPCODE0_RETURN
#undef OPCODE1_RETURN
#undef OPCODE2_RETURN
#undef OPCODE0_TAILRETURN
#undef OPCODE1_TAILRETURN
#undef OPCODE2_TAILRETURN
#undef OPCODE0_BRANCH
#undef OPCODE1_BRANCH
#undef OPCODE2_BRANCH
#undef OPCODE0_TAILBRANCH
#undef OPCODE1_TAILBRANCH
#undef OPCODE2_TAILBRANCH
/* NOTE: No need to redefine these.
* #undef OPCODE0_ALIAS
* #undef OPCODE1_ALIAS
* #undef OPCODE2_ALIAS
*/
#undef LABEL
#define LABEL(OP) &&PIKE_CONCAT(LABEL_,OP)
#define NULL_LABEL(OP) NULL
#define OPCODE0(OP,DESC) LABEL(OP),
#define OPCODE1(OP,DESC) LABEL(OP),
#define OPCODE2(OP,DESC) LABEL(OP),
#define OPCODE0_TAIL(OP,DESC) LABEL(OP),
#define OPCODE1_TAIL(OP,DESC) LABEL(OP),
#define OPCODE2_TAIL(OP,DESC) LABEL(OP),
#define OPCODE0_PTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE1_PTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE2_PTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE0_TAILPTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE1_TAILPTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE2_TAILPTRJUMP(OP,DESC) LABEL(OP),
#define OPCODE0_RETURN(OP,DESC) LABEL(OP),
#define OPCODE1_RETURN(OP,DESC) LABEL(OP),
#define OPCODE2_RETURN(OP,DESC) LABEL(OP),
#define OPCODE0_TAILRETURN(OP,DESC) LABEL(OP),
#define OPCODE1_TAILRETURN(OP,DESC) LABEL(OP),
#define OPCODE2_TAILRETURN(OP,DESC) LABEL(OP),
init_strap:
strap = &&normal_strap;
{
static void *table[] = {
NULL_LABEL(F_OFFSET),
NULL_LABEL(F_PREFIX_256),
NULL_LABEL(F_PREFIX_512),
NULL_LABEL(F_PREFIX_768),
NULL_LABEL(F_PREFIX_1024),
NULL_LABEL(F_PREFIX_CHARX256),
NULL_LABEL(F_PREFIX_WORDX256),
NULL_LABEL(F_PREFIX_24BITX256),
NULL_LABEL(F_PREFIX2_256),
NULL_LABEL(F_PREFIX2_512),
NULL_LABEL(F_PREFIX2_768),
NULL_LABEL(F_PREFIX2_1024),
NULL_LABEL(F_PREFIX2_CHARX256),
NULL_LABEL(F_PREFIX2_WORDX256),
NULL_LABEL(F_PREFIX2_24BITX256),
#include "interpret_protos.h"
};
static struct op_2_f lookup[] = {
#undef LABEL
#define LABEL(OP) { &&PIKE_CONCAT(LABEL_, OP), OP }
#undef NULL_LABEL
#define NULL_LABEL(OP) { NULL, OP }
NULL_LABEL(F_OFFSET),
NULL_LABEL(F_PREFIX_256),
NULL_LABEL(F_PREFIX_512),
NULL_LABEL(F_PREFIX_768),
NULL_LABEL(F_PREFIX_1024),
NULL_LABEL(F_PREFIX_CHARX256),
NULL_LABEL(F_PREFIX_WORDX256),
NULL_LABEL(F_PREFIX_24BITX256),
NULL_LABEL(F_PREFIX2_256),
NULL_LABEL(F_PREFIX2_512),
NULL_LABEL(F_PREFIX2_768),
NULL_LABEL(F_PREFIX2_1024),
NULL_LABEL(F_PREFIX2_CHARX256),
NULL_LABEL(F_PREFIX2_WORDX256),
NULL_LABEL(F_PREFIX2_24BITX256),
#include "interpret_protos.h"
};
#ifdef PIKE_DEBUG
if (sizeof(table) != (F_MAX_OPCODE-F_OFFSET)*sizeof(void *))
Pike_fatal("opcode_to_label out of sync: 0x%08lx != 0x%08lx\n",
DO_NOT_WARN((long)sizeof(table)),
DO_NOT_WARN((long)((F_MAX_OPCODE-F_OFFSET)*sizeof(void *))));
#endif /* PIKE_DEBUG */
fcode_to_opcode = table;
opcode_to_fcode = lookup;
qsort(lookup, F_MAX_OPCODE-F_OFFSET, sizeof(struct op_2_f),
lookup_sort_fun);
return 0;
}
#endif /* HAVE_COMPUTED_GOTO */
}
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