0,0 → 1,432 |
/* |
** $Id: luac.c,v 1.69 2011/11/29 17:46:33 lhf Exp $ |
** Lua compiler (saves bytecodes to files; also list bytecodes) |
** See Copyright Notice in lua.h |
*/ |
|
#include <errno.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
|
#define luac_c |
#define LUA_CORE |
|
#include "lua.h" |
#include "lauxlib.h" |
|
#include "lobject.h" |
#include "lstate.h" |
#include "lundump.h" |
|
static void PrintFunction(const Proto* f, int full); |
#define luaU_print PrintFunction |
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#define PROGNAME "luac" /* default program name */ |
#define OUTPUT PROGNAME ".out" /* default output file */ |
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static int listing=0; /* list bytecodes? */ |
static int dumping=1; /* dump bytecodes? */ |
static int stripping=0; /* strip debug information? */ |
static char Output[]={ OUTPUT }; /* default output file name */ |
static const char* output=Output; /* actual output file name */ |
static const char* progname=PROGNAME; /* actual program name */ |
|
static void fatal(const char* message) |
{ |
fprintf(stderr,"%s: %s\n",progname,message); |
exit(EXIT_FAILURE); |
} |
|
static void cannot(const char* what) |
{ |
fprintf(stderr,"%s: cannot %s %s: %s\n",progname,what,output,strerror(errno)); |
exit(EXIT_FAILURE); |
} |
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static void usage(const char* message) |
{ |
if (*message=='-') |
fprintf(stderr,"%s: unrecognized option " LUA_QS "\n",progname,message); |
else |
fprintf(stderr,"%s: %s\n",progname,message); |
fprintf(stderr, |
"usage: %s [options] [filenames]\n" |
"Available options are:\n" |
" -l list (use -l -l for full listing)\n" |
" -o name output to file " LUA_QL("name") " (default is \"%s\")\n" |
" -p parse only\n" |
" -s strip debug information\n" |
" -v show version information\n" |
" -- stop handling options\n" |
" - stop handling options and process stdin\n" |
,progname,Output); |
exit(EXIT_FAILURE); |
} |
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#define IS(s) (strcmp(argv[i],s)==0) |
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static int doargs(int argc, char* argv[]) |
{ |
int i; |
int version=0; |
if (argv[0]!=NULL && *argv[0]!=0) progname=argv[0]; |
for (i=1; i<argc; i++) |
{ |
if (*argv[i]!='-') /* end of options; keep it */ |
break; |
else if (IS("--")) /* end of options; skip it */ |
{ |
++i; |
if (version) ++version; |
break; |
} |
else if (IS("-")) /* end of options; use stdin */ |
break; |
else if (IS("-l")) /* list */ |
++listing; |
else if (IS("-o")) /* output file */ |
{ |
output=argv[++i]; |
if (output==NULL || *output==0 || (*output=='-' && output[1]!=0)) |
usage(LUA_QL("-o") " needs argument"); |
if (IS("-")) output=NULL; |
} |
else if (IS("-p")) /* parse only */ |
dumping=0; |
else if (IS("-s")) /* strip debug information */ |
stripping=1; |
else if (IS("-v")) /* show version */ |
++version; |
else /* unknown option */ |
usage(argv[i]); |
} |
if (i==argc && (listing || !dumping)) |
{ |
dumping=0; |
argv[--i]=Output; |
} |
if (version) |
{ |
printf("%s\n",LUA_COPYRIGHT); |
if (version==argc-1) exit(EXIT_SUCCESS); |
} |
return i; |
} |
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#define FUNCTION "(function()end)();" |
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static const char* reader(lua_State *L, void *ud, size_t *size) |
{ |
UNUSED(L); |
if ((*(int*)ud)--) |
{ |
*size=sizeof(FUNCTION)-1; |
return FUNCTION; |
} |
else |
{ |
*size=0; |
return NULL; |
} |
} |
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#define toproto(L,i) getproto(L->top+(i)) |
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static const Proto* combine(lua_State* L, int n) |
{ |
if (n==1) |
return toproto(L,-1); |
else |
{ |
Proto* f; |
int i=n; |
if (lua_load(L,reader,&i,"=(" PROGNAME ")",NULL)!=LUA_OK) fatal(lua_tostring(L,-1)); |
f=toproto(L,-1); |
for (i=0; i<n; i++) |
{ |
f->p[i]=toproto(L,i-n-1); |
if (f->p[i]->sizeupvalues>0) f->p[i]->upvalues[0].instack=0; |
} |
f->sizelineinfo=0; |
return f; |
} |
} |
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static int writer(lua_State* L, const void* p, size_t size, void* u) |
{ |
UNUSED(L); |
return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0); |
} |
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static int pmain(lua_State* L) |
{ |
int argc=(int)lua_tointeger(L,1); |
char** argv=(char**)lua_touserdata(L,2); |
const Proto* f; |
int i; |
if (!lua_checkstack(L,argc)) fatal("too many input files"); |
for (i=0; i<argc; i++) |
{ |
const char* filename=IS("-") ? NULL : argv[i]; |
if (luaL_loadfile(L,filename)!=LUA_OK) fatal(lua_tostring(L,-1)); |
} |
f=combine(L,argc); |
if (listing) luaU_print(f,listing>1); |
if (dumping) |
{ |
FILE* D= (output==NULL) ? stdout : fopen(output,"wb"); |
if (D==NULL) cannot("open"); |
lua_lock(L); |
luaU_dump(L,f,writer,D,stripping); |
lua_unlock(L); |
if (ferror(D)) cannot("write"); |
if (fclose(D)) cannot("close"); |
} |
return 0; |
} |
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int main(int argc, char* argv[]) |
{ |
lua_State* L; |
int i=doargs(argc,argv); |
argc-=i; argv+=i; |
if (argc<=0) usage("no input files given"); |
L=luaL_newstate(); |
if (L==NULL) fatal("cannot create state: not enough memory"); |
lua_pushcfunction(L,&pmain); |
lua_pushinteger(L,argc); |
lua_pushlightuserdata(L,argv); |
if (lua_pcall(L,2,0,0)!=LUA_OK) fatal(lua_tostring(L,-1)); |
lua_close(L); |
return EXIT_SUCCESS; |
} |
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/* |
** $Id: print.c,v 1.68 2011/09/30 10:21:20 lhf Exp $ |
** print bytecodes |
** See Copyright Notice in lua.h |
*/ |
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#include <ctype.h> |
#include <stdio.h> |
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#define luac_c |
#define LUA_CORE |
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#include "ldebug.h" |
#include "lobject.h" |
#include "lopcodes.h" |
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#define VOID(p) ((const void*)(p)) |
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static void PrintString(const TString* ts) |
{ |
const char* s=getstr(ts); |
size_t i,n=ts->tsv.len; |
printf("%c",'"'); |
for (i=0; i<n; i++) |
{ |
int c=(int)(unsigned char)s[i]; |
switch (c) |
{ |
case '"': printf("\\\""); break; |
case '\\': printf("\\\\"); break; |
case '\a': printf("\\a"); break; |
case '\b': printf("\\b"); break; |
case '\f': printf("\\f"); break; |
case '\n': printf("\\n"); break; |
case '\r': printf("\\r"); break; |
case '\t': printf("\\t"); break; |
case '\v': printf("\\v"); break; |
default: if (isprint(c)) |
printf("%c",c); |
else |
printf("\\%03d",c); |
} |
} |
printf("%c",'"'); |
} |
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static void PrintConstant(const Proto* f, int i) |
{ |
const TValue* o=&f->k[i]; |
switch (ttype(o)) |
{ |
case LUA_TNIL: |
printf("nil"); |
break; |
case LUA_TBOOLEAN: |
printf(bvalue(o) ? "true" : "false"); |
break; |
case LUA_TNUMBER: |
printf(LUA_NUMBER_FMT,nvalue(o)); |
break; |
case LUA_TSTRING: |
PrintString(rawtsvalue(o)); |
break; |
default: /* cannot happen */ |
printf("? type=%d",ttype(o)); |
break; |
} |
} |
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#define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-") |
#define MYK(x) (-1-(x)) |
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static void PrintCode(const Proto* f) |
{ |
const Instruction* code=f->code; |
int pc,n=f->sizecode; |
for (pc=0; pc<n; pc++) |
{ |
Instruction i=code[pc]; |
OpCode o=GET_OPCODE(i); |
int a=GETARG_A(i); |
int b=GETARG_B(i); |
int c=GETARG_C(i); |
int ax=GETARG_Ax(i); |
int bx=GETARG_Bx(i); |
int sbx=GETARG_sBx(i); |
int line=getfuncline(f,pc); |
printf("\t%d\t",pc+1); |
if (line>0) printf("[%d]\t",line); else printf("[-]\t"); |
printf("%-9s\t",luaP_opnames[o]); |
switch (getOpMode(o)) |
{ |
case iABC: |
printf("%d",a); |
if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (MYK(INDEXK(b))) : b); |
if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (MYK(INDEXK(c))) : c); |
break; |
case iABx: |
printf("%d",a); |
if (getBMode(o)==OpArgK) printf(" %d",MYK(bx)); |
if (getBMode(o)==OpArgU) printf(" %d",bx); |
break; |
case iAsBx: |
printf("%d %d",a,sbx); |
break; |
case iAx: |
printf("%d",MYK(ax)); |
break; |
} |
switch (o) |
{ |
case OP_LOADK: |
printf("\t; "); PrintConstant(f,bx); |
break; |
case OP_GETUPVAL: |
case OP_SETUPVAL: |
printf("\t; %s",UPVALNAME(b)); |
break; |
case OP_GETTABUP: |
printf("\t; %s",UPVALNAME(b)); |
if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); } |
break; |
case OP_SETTABUP: |
printf("\t; %s",UPVALNAME(a)); |
if (ISK(b)) { printf(" "); PrintConstant(f,INDEXK(b)); } |
if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); } |
break; |
case OP_GETTABLE: |
case OP_SELF: |
if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); } |
break; |
case OP_SETTABLE: |
case OP_ADD: |
case OP_SUB: |
case OP_MUL: |
case OP_DIV: |
case OP_POW: |
case OP_EQ: |
case OP_LT: |
case OP_LE: |
if (ISK(b) || ISK(c)) |
{ |
printf("\t; "); |
if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-"); |
printf(" "); |
if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-"); |
} |
break; |
case OP_JMP: |
case OP_FORLOOP: |
case OP_FORPREP: |
case OP_TFORLOOP: |
printf("\t; to %d",sbx+pc+2); |
break; |
case OP_CLOSURE: |
printf("\t; %p",VOID(f->p[bx])); |
break; |
case OP_SETLIST: |
if (c==0) printf("\t; %d",(int)code[++pc]); else printf("\t; %d",c); |
break; |
case OP_EXTRAARG: |
printf("\t; "); PrintConstant(f,ax); |
break; |
default: |
break; |
} |
printf("\n"); |
} |
} |
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#define SS(x) ((x==1)?"":"s") |
#define S(x) (int)(x),SS(x) |
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static void PrintHeader(const Proto* f) |
{ |
const char* s=f->source ? getstr(f->source) : "=?"; |
if (*s=='@' || *s=='=') |
s++; |
else if (*s==LUA_SIGNATURE[0]) |
s="(bstring)"; |
else |
s="(string)"; |
printf("\n%s <%s:%d,%d> (%d instruction%s at %p)\n", |
(f->linedefined==0)?"main":"function",s, |
f->linedefined,f->lastlinedefined, |
S(f->sizecode),VOID(f)); |
printf("%d%s param%s, %d slot%s, %d upvalue%s, ", |
(int)(f->numparams),f->is_vararg?"+":"",SS(f->numparams), |
S(f->maxstacksize),S(f->sizeupvalues)); |
printf("%d local%s, %d constant%s, %d function%s\n", |
S(f->sizelocvars),S(f->sizek),S(f->sizep)); |
} |
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static void PrintDebug(const Proto* f) |
{ |
int i,n; |
n=f->sizek; |
printf("constants (%d) for %p:\n",n,VOID(f)); |
for (i=0; i<n; i++) |
{ |
printf("\t%d\t",i+1); |
PrintConstant(f,i); |
printf("\n"); |
} |
n=f->sizelocvars; |
printf("locals (%d) for %p:\n",n,VOID(f)); |
for (i=0; i<n; i++) |
{ |
printf("\t%d\t%s\t%d\t%d\n", |
i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1); |
} |
n=f->sizeupvalues; |
printf("upvalues (%d) for %p:\n",n,VOID(f)); |
for (i=0; i<n; i++) |
{ |
printf("\t%d\t%s\t%d\t%d\n", |
i,UPVALNAME(i),f->upvalues[i].instack,f->upvalues[i].idx); |
} |
} |
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static void PrintFunction(const Proto* f, int full) |
{ |
int i,n=f->sizep; |
PrintHeader(f); |
PrintCode(f); |
if (full) PrintDebug(f); |
for (i=0; i<n; i++) PrintFunction(f->p[i],full); |
} |