1 files changed, 106 insertions, 0 deletions

diff --git a/src/buildvm.h b/src/buildvm.h
new file mode 100644
index 00000000..e55527fd
--- /dev/null
+++ b/src/buildvm.h
@@ -0,0 +1,106 @@
+/*
+** 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[];
+
+#endif