451 lines
10 KiB
C
451 lines
10 KiB
C
/*
|
|
** $Id: luac.c,v 1.76 2018/06/19 01:32:02 lhf Exp $
|
|
** Lua compiler (saves bytecodes to files; also lists bytecodes)
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#define luac_c
|
|
#define LUA_CORE
|
|
|
|
#include "lprefix.h"
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#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
|
|
|
|
#define PROGNAME "luac" /* default program name */
|
|
#define OUTPUT PROGNAME ".out" /* default output file */
|
|
|
|
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);
|
|
}
|
|
|
|
static void usage(const char* message)
|
|
{
|
|
if (*message=='-')
|
|
fprintf(stderr,"%s: unrecognized option '%s'\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 '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);
|
|
}
|
|
|
|
#define IS(s) (strcmp(argv[i],s)==0)
|
|
|
|
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("'-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;
|
|
}
|
|
|
|
#define FUNCTION "(function()end)();"
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
#define toproto(L,i) getproto(L->top+(i))
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
** $Id: luac.c,v 1.76 2018/06/19 01:32:02 lhf Exp $
|
|
** print bytecodes
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
|
|
#define luac_c
|
|
#define LUA_CORE
|
|
|
|
#include "ldebug.h"
|
|
#include "lobject.h"
|
|
#include "lopcodes.h"
|
|
|
|
#define VOID(p) ((const void*)(p))
|
|
|
|
static void PrintString(const TString* ts)
|
|
{
|
|
const char* s=getstr(ts);
|
|
size_t i,n=tsslen(ts);
|
|
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",'"');
|
|
}
|
|
|
|
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_TNUMFLT:
|
|
{
|
|
char buff[100];
|
|
sprintf(buff,LUA_NUMBER_FMT,fltvalue(o));
|
|
printf("%s",buff);
|
|
if (buff[strspn(buff,"-0123456789")]=='\0') printf(".0");
|
|
break;
|
|
}
|
|
case LUA_TNUMINT:
|
|
printf(LUA_INTEGER_FMT,ivalue(o));
|
|
break;
|
|
case LUA_TSHRSTR: case LUA_TLNGSTR:
|
|
PrintString(tsvalue(o));
|
|
break;
|
|
default: /* cannot happen */
|
|
printf("? type=%d",ttype(o));
|
|
break;
|
|
}
|
|
}
|
|
|
|
#define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-")
|
|
#define MYK(x) (-1-(x))
|
|
|
|
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_MOD:
|
|
case OP_POW:
|
|
case OP_DIV:
|
|
case OP_IDIV:
|
|
case OP_BAND:
|
|
case OP_BOR:
|
|
case OP_BXOR:
|
|
case OP_SHL:
|
|
case OP_SHR:
|
|
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");
|
|
}
|
|
}
|
|
|
|
#define SS(x) ((x==1)?"":"s")
|
|
#define S(x) (int)(x),SS(x)
|
|
|
|
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));
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|