forked from mia/Aegisub
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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** LuaJIT VM builder.
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** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
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*/
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#ifndef _BUILDVM_H
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#define _BUILDVM_H
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "lj_def.h"
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#include "lj_arch.h"
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/* Hardcoded limits. Increase as needed. */
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#define BUILD_MAX_RELOC 200 /* Max. number of relocations. */
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#define BUILD_MAX_FOLD 4096 /* Max. number of fold rules. */
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/* Prefix for scanned library definitions. */
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#define LIBDEF_PREFIX "LJLIB_"
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/* Prefix for scanned fold definitions. */
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#define FOLDDEF_PREFIX "LJFOLD"
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/* Prefixes for generated labels. */
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#define LABEL_PREFIX "lj_"
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#define LABEL_PREFIX_BC LABEL_PREFIX "BC_"
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#define LABEL_PREFIX_FF LABEL_PREFIX "ff_"
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#define LABEL_PREFIX_CF LABEL_PREFIX "cf_"
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#define LABEL_PREFIX_FFH LABEL_PREFIX "ffh_"
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#define LABEL_PREFIX_LIBCF LABEL_PREFIX "lib_cf_"
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#define LABEL_PREFIX_LIBINIT LABEL_PREFIX "lib_init_"
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/* Forward declaration. */
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struct dasm_State;
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/* Build modes. */
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#define BUILDDEF(_) \
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_(elfasm) _(coffasm) _(machasm) _(peobj) _(raw) \
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_(bcdef) _(ffdef) _(libdef) _(recdef) _(vmdef) \
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_(folddef)
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typedef enum {
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#define BUILDENUM(name) BUILD_##name,
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BUILDDEF(BUILDENUM)
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#undef BUILDENUM
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BUILD__MAX
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} BuildMode;
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/* Code relocation. */
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typedef struct BuildReloc {
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int32_t ofs;
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int sym;
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int type;
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} BuildReloc;
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typedef struct BuildSym {
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const char *name;
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int32_t ofs;
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} BuildSym;
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/* Build context structure. */
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typedef struct BuildCtx {
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/* DynASM state pointer. Should be first member. */
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struct dasm_State *D;
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/* Parsed command line. */
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BuildMode mode;
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FILE *fp;
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const char *outname;
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char **args;
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/* Code and symbols generated by DynASM. */
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uint8_t *code;
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size_t codesz;
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int npc, nglob, nsym, nreloc, nrelocsym;
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void **glob;
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BuildSym *sym;
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const char **relocsym;
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int32_t *bc_ofs;
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const char *beginsym;
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/* Strings generated by DynASM. */
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const char *const *globnames;
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const char *dasm_ident;
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const char *dasm_arch;
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/* Relocations. */
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BuildReloc reloc[BUILD_MAX_RELOC];
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} BuildCtx;
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extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz);
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extern void emit_asm(BuildCtx *ctx);
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extern void emit_peobj(BuildCtx *ctx);
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extern void emit_lib(BuildCtx *ctx);
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extern void emit_fold(BuildCtx *ctx);
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extern const char *const bc_names[];
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extern const char *const ir_names[];
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extern const char *const irt_names[];
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extern const char *const irfpm_names[];
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extern const char *const irfield_names[];
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extern const char *const ircall_names[];
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#endif
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