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/*
** LuaJIT VM builder.
** Copyright (C) 2005-2009 Mike Pall. See Copyright Notice in luajit.h
*/
#ifndef _BUILDVM_H
#define _BUILDVM_H
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "lj_def.h"
#include "lj_arch.h"
/* Hardcoded limits. Increase as needed. */
#define BUILD_MAX_RELOC 100 /* Max. number of relocations. */
#define BUILD_MAX_FOLD 4096 /* Max. number of fold rules. */
/* Prefix for scanned library definitions. */
#define LIBDEF_PREFIX "LJLIB_"
/* Prefix for scanned fold definitions. */
#define FOLDDEF_PREFIX "LJFOLD"
/* Prefixes for generated labels. */
#define LABEL_PREFIX "lj_"
#define LABEL_PREFIX_BC LABEL_PREFIX "BC_"
#define LABEL_PREFIX_FF LABEL_PREFIX "ff_"
#define LABEL_PREFIX_CF LABEL_PREFIX "cf_"
#define LABEL_PREFIX_FFH LABEL_PREFIX "ffh_"
#define LABEL_PREFIX_LIBCF LABEL_PREFIX "lib_cf_"
#define LABEL_PREFIX_LIBINIT LABEL_PREFIX "lib_init_"
/* Extra labels. */
#define LABEL_ASM_BEGIN LABEL_PREFIX "vm_asm_begin"
#define LABEL_OP_OFS LABEL_PREFIX "vm_op_ofs"
/* Forward declaration. */
struct dasm_State;
/* Build modes. */
#if LJ_TARGET_X86ORX64
#define BUILDDEFX(_) _(peobj)
#else
#define BUILDDEFX(_)
#endif
#define BUILDDEF(_) \
_(asm) _(elfasm) _(coffasm) _(machasm) BUILDDEFX(_) _(raw) \
_(ffdef) _(libdef) _(recdef) _(vmdef) \
_(folddef)
typedef enum {
#define BUILDENUM(name) BUILD_##name,
BUILDDEF(BUILDENUM)
#undef BUILDENUM
BUILD__MAX
} BuildMode;
/* Code relocation. */
typedef struct BuildReloc {
int32_t ofs;
int sym;
int type;
} BuildReloc;
/* Build context structure. */
typedef struct BuildCtx {
/* DynASM state pointer. Should be first member. */
struct dasm_State *D;
/* Parsed command line. */
BuildMode mode;
FILE *fp;
const char *outname;
char **args;
/* Code and symbols generated by DynASM. */
uint8_t *code;
size_t codesz;
int npc, nglob, nsym, nreloc;
void **glob;
int *perm;
int32_t *sym_ofs;
/* Strings generated by DynASM. */
const char *const *extnames;
const char *const *globnames;
const char *dasm_ident;
const char *dasm_arch;
/* Relocations. */
BuildReloc reloc[BUILD_MAX_RELOC];
} BuildCtx;
extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz);
extern void emit_asm(BuildCtx *ctx);
extern void emit_peobj(BuildCtx *ctx);
extern void emit_lib(BuildCtx *ctx);
extern void emit_fold(BuildCtx *ctx);
extern const char *const bc_names[];
extern const char *const ir_names[];
extern const char *const irfpm_names[];
extern const char *const irfield_names[];
extern const char *const ircall_names[];
#endif
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