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author | David Walter Seikel | 2012-01-23 23:36:30 +1000 |
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committer | David Walter Seikel | 2012-01-23 23:36:30 +1000 |
commit | 6523585c66c04cea54df50013df8886b589847d8 (patch) | |
tree | 0b22aee7064166d88595eda260ca2d17c0773da5 /libraries/LuaJIT-1.1.7/src/lundump.c | |
parent | Update the EFL to what I'm actually using, coz I'm using some stuff not yet r... (diff) | |
download | SledjHamr-6523585c66c04cea54df50013df8886b589847d8.zip SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.gz SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.bz2 SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.xz |
Add luaproc and LuaJIT libraries.
Two versions of LuaJIT, the stable release, and the dev version. Try the dev version first, until ih fails badly.
Diffstat (limited to 'libraries/LuaJIT-1.1.7/src/lundump.c')
-rw-r--r-- | libraries/LuaJIT-1.1.7/src/lundump.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/libraries/LuaJIT-1.1.7/src/lundump.c b/libraries/LuaJIT-1.1.7/src/lundump.c new file mode 100644 index 0000000..8010a45 --- /dev/null +++ b/libraries/LuaJIT-1.1.7/src/lundump.c | |||
@@ -0,0 +1,227 @@ | |||
1 | /* | ||
2 | ** $Id: lundump.c,v 2.7.1.4 2008/04/04 19:51:41 roberto Exp $ | ||
3 | ** load precompiled Lua chunks | ||
4 | ** See Copyright Notice in lua.h | ||
5 | */ | ||
6 | |||
7 | #include <string.h> | ||
8 | |||
9 | #define lundump_c | ||
10 | #define LUA_CORE | ||
11 | |||
12 | #include "lua.h" | ||
13 | |||
14 | #include "ldebug.h" | ||
15 | #include "ldo.h" | ||
16 | #include "lfunc.h" | ||
17 | #include "lmem.h" | ||
18 | #include "lobject.h" | ||
19 | #include "lstring.h" | ||
20 | #include "lundump.h" | ||
21 | #include "lzio.h" | ||
22 | |||
23 | typedef struct { | ||
24 | lua_State* L; | ||
25 | ZIO* Z; | ||
26 | Mbuffer* b; | ||
27 | const char* name; | ||
28 | } LoadState; | ||
29 | |||
30 | #ifdef LUAC_TRUST_BINARIES | ||
31 | #define IF(c,s) | ||
32 | #define error(S,s) | ||
33 | #else | ||
34 | #define IF(c,s) if (c) error(S,s) | ||
35 | |||
36 | static void error(LoadState* S, const char* why) | ||
37 | { | ||
38 | luaO_pushfstring(S->L,"%s: %s in precompiled chunk",S->name,why); | ||
39 | luaD_throw(S->L,LUA_ERRSYNTAX); | ||
40 | } | ||
41 | #endif | ||
42 | |||
43 | #define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size)) | ||
44 | #define LoadByte(S) (lu_byte)LoadChar(S) | ||
45 | #define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x)) | ||
46 | #define LoadVector(S,b,n,size) LoadMem(S,b,n,size) | ||
47 | |||
48 | static void LoadBlock(LoadState* S, void* b, size_t size) | ||
49 | { | ||
50 | size_t r=luaZ_read(S->Z,b,size); | ||
51 | IF (r!=0, "unexpected end"); | ||
52 | } | ||
53 | |||
54 | static int LoadChar(LoadState* S) | ||
55 | { | ||
56 | char x; | ||
57 | LoadVar(S,x); | ||
58 | return x; | ||
59 | } | ||
60 | |||
61 | static int LoadInt(LoadState* S) | ||
62 | { | ||
63 | int x; | ||
64 | LoadVar(S,x); | ||
65 | IF (x<0, "bad integer"); | ||
66 | return x; | ||
67 | } | ||
68 | |||
69 | static lua_Number LoadNumber(LoadState* S) | ||
70 | { | ||
71 | lua_Number x; | ||
72 | LoadVar(S,x); | ||
73 | return x; | ||
74 | } | ||
75 | |||
76 | static TString* LoadString(LoadState* S) | ||
77 | { | ||
78 | size_t size; | ||
79 | LoadVar(S,size); | ||
80 | if (size==0) | ||
81 | return NULL; | ||
82 | else | ||
83 | { | ||
84 | char* s=luaZ_openspace(S->L,S->b,size); | ||
85 | LoadBlock(S,s,size); | ||
86 | return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */ | ||
87 | } | ||
88 | } | ||
89 | |||
90 | static void LoadCode(LoadState* S, Proto* f) | ||
91 | { | ||
92 | int n=LoadInt(S); | ||
93 | f->code=luaM_newvector(S->L,n,Instruction); | ||
94 | f->sizecode=n; | ||
95 | LoadVector(S,f->code,n,sizeof(Instruction)); | ||
96 | } | ||
97 | |||
98 | static Proto* LoadFunction(LoadState* S, TString* p); | ||
99 | |||
100 | static void LoadConstants(LoadState* S, Proto* f) | ||
101 | { | ||
102 | int i,n; | ||
103 | n=LoadInt(S); | ||
104 | f->k=luaM_newvector(S->L,n,TValue); | ||
105 | f->sizek=n; | ||
106 | for (i=0; i<n; i++) setnilvalue(&f->k[i]); | ||
107 | for (i=0; i<n; i++) | ||
108 | { | ||
109 | TValue* o=&f->k[i]; | ||
110 | int t=LoadChar(S); | ||
111 | switch (t) | ||
112 | { | ||
113 | case LUA_TNIL: | ||
114 | setnilvalue(o); | ||
115 | break; | ||
116 | case LUA_TBOOLEAN: | ||
117 | setbvalue(o,LoadChar(S)!=0); | ||
118 | break; | ||
119 | case LUA_TNUMBER: | ||
120 | setnvalue(o,LoadNumber(S)); | ||
121 | break; | ||
122 | case LUA_TSTRING: | ||
123 | setsvalue2n(S->L,o,LoadString(S)); | ||
124 | break; | ||
125 | default: | ||
126 | error(S,"bad constant"); | ||
127 | break; | ||
128 | } | ||
129 | } | ||
130 | n=LoadInt(S); | ||
131 | f->p=luaM_newvector(S->L,n,Proto*); | ||
132 | f->sizep=n; | ||
133 | for (i=0; i<n; i++) f->p[i]=NULL; | ||
134 | for (i=0; i<n; i++) f->p[i]=LoadFunction(S,f->source); | ||
135 | } | ||
136 | |||
137 | static void LoadDebug(LoadState* S, Proto* f) | ||
138 | { | ||
139 | int i,n; | ||
140 | n=LoadInt(S); | ||
141 | f->lineinfo=luaM_newvector(S->L,n,int); | ||
142 | f->sizelineinfo=n; | ||
143 | LoadVector(S,f->lineinfo,n,sizeof(int)); | ||
144 | n=LoadInt(S); | ||
145 | f->locvars=luaM_newvector(S->L,n,LocVar); | ||
146 | f->sizelocvars=n; | ||
147 | for (i=0; i<n; i++) f->locvars[i].varname=NULL; | ||
148 | for (i=0; i<n; i++) | ||
149 | { | ||
150 | f->locvars[i].varname=LoadString(S); | ||
151 | f->locvars[i].startpc=LoadInt(S); | ||
152 | f->locvars[i].endpc=LoadInt(S); | ||
153 | } | ||
154 | n=LoadInt(S); | ||
155 | f->upvalues=luaM_newvector(S->L,n,TString*); | ||
156 | f->sizeupvalues=n; | ||
157 | for (i=0; i<n; i++) f->upvalues[i]=NULL; | ||
158 | for (i=0; i<n; i++) f->upvalues[i]=LoadString(S); | ||
159 | } | ||
160 | |||
161 | static Proto* LoadFunction(LoadState* S, TString* p) | ||
162 | { | ||
163 | Proto* f; | ||
164 | if (++S->L->nCcalls > LUAI_MAXCCALLS) error(S,"code too deep"); | ||
165 | f=luaF_newproto(S->L); | ||
166 | setptvalue2s(S->L,S->L->top,f); incr_top(S->L); | ||
167 | f->source=LoadString(S); if (f->source==NULL) f->source=p; | ||
168 | f->linedefined=LoadInt(S); | ||
169 | f->lastlinedefined=LoadInt(S); | ||
170 | f->nups=LoadByte(S); | ||
171 | f->numparams=LoadByte(S); | ||
172 | f->is_vararg=LoadByte(S); | ||
173 | f->maxstacksize=LoadByte(S); | ||
174 | LoadCode(S,f); | ||
175 | LoadConstants(S,f); | ||
176 | LoadDebug(S,f); | ||
177 | IF (!luaG_checkcode(f), "bad code"); | ||
178 | S->L->top--; | ||
179 | S->L->nCcalls--; | ||
180 | return f; | ||
181 | } | ||
182 | |||
183 | static void LoadHeader(LoadState* S) | ||
184 | { | ||
185 | char h[LUAC_HEADERSIZE]; | ||
186 | char s[LUAC_HEADERSIZE]; | ||
187 | luaU_header(h); | ||
188 | LoadBlock(S,s,LUAC_HEADERSIZE); | ||
189 | IF (memcmp(h,s,LUAC_HEADERSIZE)!=0, "bad header"); | ||
190 | } | ||
191 | |||
192 | /* | ||
193 | ** load precompiled chunk | ||
194 | */ | ||
195 | Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name) | ||
196 | { | ||
197 | LoadState S; | ||
198 | if (*name=='@' || *name=='=') | ||
199 | S.name=name+1; | ||
200 | else if (*name==LUA_SIGNATURE[0]) | ||
201 | S.name="binary string"; | ||
202 | else | ||
203 | S.name=name; | ||
204 | S.L=L; | ||
205 | S.Z=Z; | ||
206 | S.b=buff; | ||
207 | LoadHeader(&S); | ||
208 | return LoadFunction(&S,luaS_newliteral(L,"=?")); | ||
209 | } | ||
210 | |||
211 | /* | ||
212 | * make header | ||
213 | */ | ||
214 | void luaU_header (char* h) | ||
215 | { | ||
216 | int x=1; | ||
217 | memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-1); | ||
218 | h+=sizeof(LUA_SIGNATURE)-1; | ||
219 | *h++=(char)LUAC_VERSION; | ||
220 | *h++=(char)LUAC_FORMAT; | ||
221 | *h++=(char)*(char*)&x; /* endianness */ | ||
222 | *h++=(char)sizeof(int); | ||
223 | *h++=(char)sizeof(size_t); | ||
224 | *h++=(char)sizeof(Instruction); | ||
225 | *h++=(char)sizeof(lua_Number); | ||
226 | *h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */ | ||
227 | } | ||