source/libs/luajit/LuaJIT-src/src/host/buildvm.h

   1 /*
   2 ** LuaJIT VM builder.
   3 ** Copyright (C) 2005-2015 Mike Pall. See Copyright Notice in luajit.h
   4 */
   5
   6 #ifndef _BUILDVM_H
   7 #define _BUILDVM_H
   8
   9 #include <sys/types.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <errno.h>
  14
  15 #include "lj_def.h"
  16 #include "lj_arch.h"
  17
  18 /* Hardcoded limits. Increase as needed. */
  19 #define BUILD_MAX_RELOC         200     /* Max. number of relocations. */
  20 #define BUILD_MAX_FOLD          4096    /* Max. number of fold rules. */
  21
  22 /* Prefix for scanned library definitions. */
  23 #define LIBDEF_PREFIX           "LJLIB_"
  24
  25 /* Prefix for scanned fold definitions. */
  26 #define FOLDDEF_PREFIX          "LJFOLD"
  27
  28 /* Prefixes for generated labels. */
  29 #define LABEL_PREFIX            "lj_"
  30 #define LABEL_PREFIX_BC         LABEL_PREFIX "BC_"
  31 #define LABEL_PREFIX_FF         LABEL_PREFIX "ff_"
  32 #define LABEL_PREFIX_CF         LABEL_PREFIX "cf_"
  33 #define LABEL_PREFIX_FFH        LABEL_PREFIX "ffh_"
  34 #define LABEL_PREFIX_LIBCF      LABEL_PREFIX "lib_cf_"
  35 #define LABEL_PREFIX_LIBINIT    LABEL_PREFIX "lib_init_"
  36
  37 /* Forward declaration. */
  38 struct dasm_State;
  39
  40 /* Build modes. */
  41 #define BUILDDEF(_) \
  42   _(elfasm) _(coffasm) _(machasm) _(peobj) _(raw) \
  43   _(bcdef) _(ffdef) _(libdef) _(recdef) _(vmdef) \
  44   _(folddef)
  45
  46 typedef enum {
  47 #define BUILDENUM(name)         BUILD_##name,
  48 BUILDDEF(BUILDENUM)
  49 #undef BUILDENUM
  50   BUILD__MAX
  51 } BuildMode;
  52
  53 /* Code relocation. */
  54 typedef struct BuildReloc {
  55   int32_t ofs;
  56   int sym;
  57   int type;
  58 } BuildReloc;
  59
  60 typedef struct BuildSym {
  61   const char *name;
  62   int32_t ofs;
  63 } BuildSym;
  64
  65 /* Build context structure. */
  66 typedef struct BuildCtx {
  67   /* DynASM state pointer. Should be first member. */
  68   struct dasm_State *D;
  69   /* Parsed command line. */
  70   BuildMode mode;
  71   FILE *fp;
  72   const char *outname;
  73   char **args;
  74   /* Code and symbols generated by DynASM. */
  75   uint8_t *code;
  76   size_t codesz;
  77   int npc, nglob, nsym, nreloc, nrelocsym;
  78   void **glob;
  79   BuildSym *sym;
  80   const char **relocsym;
  81   int32_t *bc_ofs;
  82   const char *beginsym;
  83   /* Strings generated by DynASM. */
  84   const char *const *globnames;
  85   const char *const *extnames;
  86   const char *dasm_ident;
  87   const char *dasm_arch;
  88   /* Relocations. */
  89   BuildReloc reloc[BUILD_MAX_RELOC];
  90 } BuildCtx;
  91
  92 extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz);
  93 extern void emit_asm(BuildCtx *ctx);
  94 extern void emit_peobj(BuildCtx *ctx);
  95 extern void emit_lib(BuildCtx *ctx);
  96 extern void emit_fold(BuildCtx *ctx);
  97
  98 extern const char *const bc_names[];
  99 extern const char *const ir_names[];
 100 extern const char *const irt_names[];
 101 extern const char *const irfpm_names[];
 102 extern const char *const irfield_names[];
 103 extern const char *const ircall_names[];
 104
 105 #endif