PPC/NetBSD: Fix endianess check.
[luajit-2.0.git] / src / lj_bcdump.h
blobba53c0a11832d1b56a20ffb954a621e319e445be
1 /*
2 ** Bytecode dump definitions.
3 ** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
4 */
6 #ifndef _LJ_BCDUMP_H
7 #define _LJ_BCDUMP_H
9 #include "lj_obj.h"
10 #include "lj_lex.h"
12 /* -- Bytecode dump format ------------------------------------------------ */
15 ** dump = header proto+ 0U
16 ** header = ESC 'L' 'J' versionB flagsU [namelenU nameB*]
17 ** proto = lengthU pdata
18 ** pdata = phead bcinsW* uvdataH* kgc* knum* [debugB*]
19 ** phead = flagsB numparamsB framesizeB numuvB numkgcU numknU numbcU
20 ** [debuglenU [firstlineU numlineU]]
21 ** kgc = kgctypeU { ktab | (loU hiU) | (rloU rhiU iloU ihiU) | strB* }
22 ** knum = intU0 | (loU1 hiU)
23 ** ktab = narrayU nhashU karray* khash*
24 ** karray = ktabk
25 ** khash = ktabk ktabk
26 ** ktabk = ktabtypeU { intU | (loU hiU) | strB* }
28 ** B = 8 bit, H = 16 bit, W = 32 bit, U = ULEB128 of W, U0/U1 = ULEB128 of W+1
31 /* Bytecode dump header. */
32 #define BCDUMP_HEAD1 0x1b
33 #define BCDUMP_HEAD2 0x4c
34 #define BCDUMP_HEAD3 0x4a
36 /* If you perform *any* kind of private modifications to the bytecode itself
37 ** or to the dump format, you *must* set BCDUMP_VERSION to 0x80 or higher.
39 #define BCDUMP_VERSION 1
41 /* Compatibility flags. */
42 #define BCDUMP_F_BE 0x01
43 #define BCDUMP_F_STRIP 0x02
44 #define BCDUMP_F_FFI 0x04
46 #define BCDUMP_F_KNOWN (BCDUMP_F_FFI*2-1)
48 /* Type codes for the GC constants of a prototype. Plus length for strings. */
49 enum {
50 BCDUMP_KGC_CHILD, BCDUMP_KGC_TAB, BCDUMP_KGC_I64, BCDUMP_KGC_U64,
51 BCDUMP_KGC_COMPLEX, BCDUMP_KGC_STR
54 /* Type codes for the keys/values of a constant table. */
55 enum {
56 BCDUMP_KTAB_NIL, BCDUMP_KTAB_FALSE, BCDUMP_KTAB_TRUE,
57 BCDUMP_KTAB_INT, BCDUMP_KTAB_NUM, BCDUMP_KTAB_STR
60 /* -- Bytecode reader/writer ---------------------------------------------- */
62 LJ_FUNC int lj_bcwrite(lua_State *L, GCproto *pt, lua_Writer writer,
63 void *data, int strip);
64 LJ_FUNC GCproto *lj_bcread(LexState *ls);
66 #endif