1 | /* |
2 | ** LuaJIT VM builder. |
3 | ** Copyright (C) 2005-2014 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 *dasm_ident; |
86 | const char *dasm_arch; |
87 | /* Relocations. */ |
88 | BuildReloc reloc[BUILD_MAX_RELOC]; |
89 | } BuildCtx; |
90 | |
91 | extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz); |
92 | extern void emit_asm(BuildCtx *ctx); |
93 | extern void emit_peobj(BuildCtx *ctx); |
94 | extern void emit_lib(BuildCtx *ctx); |
95 | extern void emit_fold(BuildCtx *ctx); |
96 | |
97 | extern const char *const bc_names[]; |
98 | extern const char *const ir_names[]; |
99 | extern const char *const irt_names[]; |
100 | extern const char *const irfpm_names[]; |
101 | extern const char *const irfield_names[]; |
102 | extern const char *const ircall_names[]; |
103 | |
104 | #endif |
105 | |