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/* -------------------------------------------------------------- *//* *  TCC - Tiny C Compiler * *  tcctools.c - extra tools and and -m32/64 support * */ /* -------------------------------------------------------------- *//* * This program is for making libtcc1.a without ar * tiny_libmaker - tiny elf lib maker * usage: tiny_libmaker [lib] files... * Copyright (c) 2007 Timppa * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "tcc.h" //#define ARMAG  "!<arch>\n"#define ARFMAG "`\n" typedef struct {    char ar_name[16];    char ar_date[12];    char ar_uid[6];    char ar_gid[6];    char ar_mode[8];    char ar_size[10];    char ar_fmag[2];} ArHdr; static unsigned long le2belong(unsigned long ul) {    return ((ul & 0xFF0000)>>8)+((ul & 0xFF000000)>>24) +        ((ul & 0xFF)<<24)+((ul & 0xFF00)<<8);} /* Returns 1 if s contains any of the chars of list, else 0 */static int contains_any(const char *s, const char *list) {  const char *l;  for (; *s; s++) {      for (l = list; *l; l++) {          if (*s == *l)              return 1;      }  }  return 0;} static int ar_usage(int ret) {    fprintf(stderr, "usage: tcc -ar [rcsv] lib file...\n");    fprintf(stderr, "create library ([abdioptxN] not supported).\n");    return ret;} ST_FUNC int tcc_tool_ar(TCCState *s1, int argc, char **argv){    static ArHdr arhdr = {        "/               ",        "            ",        "0     ",        "0     ",        "0       ",        "          ",        ARFMAG        };     static ArHdr arhdro = {        "                ",        "            ",        "0     ",        "0     ",        "0       ",        "          ",        ARFMAG        };     FILE *fi, *fh = NULL, *fo = NULL;    ElfW(Ehdr) *ehdr;    ElfW(Shdr) *shdr;    ElfW(Sym) *sym;    int i, fsize, i_lib, i_obj;    char *buf, *shstr, *symtab = NULL, *strtab = NULL;    int symtabsize = 0;//, strtabsize = 0;    char *anames = NULL;    int *afpos = NULL;    int istrlen, strpos = 0, fpos = 0, funccnt = 0, funcmax, hofs;    char tfile[260], stmp[20];    char *file, *name;    int ret = 2;    const char *ops_conflict = "habdioptxN";  // unsupported but destructive if ignored.    int verbose = 0;     i_lib = 0; i_obj = 0;  // will hold the index of the lib and first obj    for (i = 1; i < argc; i++) {        const char *a = argv[i];        if (*a == '-' && strstr(a, "."))            ret = 1; // -x.y is always invalid (same as gnu ar)        if ((*a == '-') || (i == 1 && !strstr(a, "."))) {  // options argument            if (contains_any(a, ops_conflict))                ret = 1;            if (strstr(a, "v"))                verbose = 1;        } else {  // lib or obj files: don't abort - keep validating all args.            if (!i_lib)  // first file is the lib                i_lib = i;            else if (!i_obj)  // second file is the first obj                i_obj = i;        }    }     if (!i_obj)  // i_obj implies also i_lib. we require both.        ret = 1;     if (ret == 1)        return ar_usage(ret);     if ((fh = fopen(argv[i_lib], "wb")) == NULL)    {        fprintf(stderr, "tcc: ar: can't open file %s \n", argv[i_lib]);        goto the_end;    }     sprintf(tfile, "%s.tmp", argv[i_lib]);    if ((fo = fopen(tfile, "wb+")) == NULL)    {        fprintf(stderr, "tcc: ar: can't create temporary file %s\n", tfile);        goto the_end;    }     funcmax = 250;    afpos = tcc_realloc(NULL, funcmax * sizeof *afpos); // 250 func    memcpy(&arhdro.ar_mode, "100666", 6);     // i_obj = first input object file    while (i_obj < argc)    {        if (*argv[i_obj] == '-') {  // by now, all options start with '-'            i_obj++;            continue;        }        if ((fi = fopen(argv[i_obj], "rb")) == NULL) {            fprintf(stderr, "tcc: ar: can't open file %s \n", argv[i_obj]);            goto the_end;        }        if (verbose)            printf("a - %s\n", argv[i_obj]);         fseek(fi, 0, SEEK_END);        fsize = ftell(fi);        fseek(fi, 0, SEEK_SET);        buf = tcc_malloc(fsize + 1);        fread(buf, fsize, 1, fi);        fclose(fi);         // elf header        ehdr = (ElfW(Ehdr) *)buf;        if (ehdr->e_ident[4] != ELFCLASSW)        {            fprintf(stderr, "tcc: ar: Unsupported Elf Class: %s\n", argv[i_obj]);            goto the_end;        }         shdr = (ElfW(Shdr) *) (buf + ehdr->e_shoff + ehdr->e_shstrndx * ehdr->e_shentsize);        shstr = (char *)(buf + shdr->sh_offset);        for (i = 0; i < ehdr->e_shnum; i++)        {            shdr = (ElfW(Shdr) *) (buf + ehdr->e_shoff + i * ehdr->e_shentsize);            if (!shdr->sh_offset)                continue;            if (shdr->sh_type == SHT_SYMTAB)            {                symtab = (char *)(buf + shdr->sh_offset);                symtabsize = shdr->sh_size;            }            if (shdr->sh_type == SHT_STRTAB)            {                if (!strcmp(shstr + shdr->sh_name, ".strtab"))                {                    strtab = (char *)(buf + shdr->sh_offset);                    //strtabsize = shdr->sh_size;                }            }        }         if (symtab && symtabsize)        {            int nsym = symtabsize / sizeof(ElfW(Sym));            //printf("symtab: info size shndx name\n");            for (i = 1; i < nsym; i++)            {                sym = (ElfW(Sym) *) (symtab + i * sizeof(ElfW(Sym)));                if (sym->st_shndx &&                    (sym->st_info == 0x10                    || sym->st_info == 0x11                    || sym->st_info == 0x12                    )) {                    //printf("symtab: %2Xh %4Xh %2Xh %s\n", sym->st_info, sym->st_size, sym->st_shndx, strtab + sym->st_name);                    istrlen = strlen(strtab + sym->st_name)+1;                    anames = tcc_realloc(anames, strpos+istrlen);                    strcpy(anames + strpos, strtab + sym->st_name);                    strpos += istrlen;                    if (++funccnt >= funcmax) {                        funcmax += 250;                        afpos = tcc_realloc(afpos, funcmax * sizeof *afpos); // 250 func more                    }                    afpos[funccnt] = fpos;                }            }        }         file = argv[i_obj];        for (name = strchr(file, 0);             name > file && name[-1] != '/' && name[-1] != '\\';             --name);        istrlen = strlen(name);        if (istrlen >= sizeof(arhdro.ar_name))            istrlen = sizeof(arhdro.ar_name) - 1;        memset(arhdro.ar_name, ' ', sizeof(arhdro.ar_name));        memcpy(arhdro.ar_name, name, istrlen);        arhdro.ar_name[istrlen] = '/';        sprintf(stmp, "%-10d", fsize);        memcpy(&arhdro.ar_size, stmp, 10);        fwrite(&arhdro, sizeof(arhdro), 1, fo);        fwrite(buf, fsize, 1, fo);        tcc_free(buf);        i_obj++;        fpos += (fsize + sizeof(arhdro));    }    hofs = 8 + sizeof(arhdr) + strpos + (funccnt+1) * sizeof(int);    fpos = 0;    if ((hofs & 1)) // align        hofs++, fpos = 1;    // write header    fwrite("!<arch>\n", 8, 1, fh);    sprintf(stmp, "%-10d", (int)(strpos + (funccnt+1) * sizeof(int)));    memcpy(&arhdr.ar_size, stmp, 10);    fwrite(&arhdr, sizeof(arhdr), 1, fh);    afpos[0] = le2belong(funccnt);    for (i=1; i<=funccnt; i++)        afpos[i] = le2belong(afpos[i] + hofs);    fwrite(afpos, (funccnt+1) * sizeof(int), 1, fh);    fwrite(anames, strpos, 1, fh);    if (fpos)        fwrite("", 1, 1, fh);    // write objects    fseek(fo, 0, SEEK_END);    fsize = ftell(fo);    fseek(fo, 0, SEEK_SET);    buf = tcc_malloc(fsize + 1);    fread(buf, fsize, 1, fo);    fwrite(buf, fsize, 1, fh);    tcc_free(buf);    ret = 0;the_end:    if (anames)        tcc_free(anames);    if (afpos)        tcc_free(afpos);    if (fh)        fclose(fh);    if (fo)        fclose(fo), remove(tfile);    return ret;} /* -------------------------------------------------------------- *//* * tiny_impdef creates an export definition file (.def) from a dll * on MS-Windows. Usage: tiny_impdef library.dll [-o outputfile]" * *  Copyright (c) 2005,2007 grischka * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifdef TCC_TARGET_PE ST_FUNC int tcc_tool_impdef(TCCState *s1, int argc, char **argv){    int ret, v, i;    char infile[260];    char outfile[260];     const char *file;    char *p, *q;    FILE *fp, *op; #ifdef _WIN32    char path[260];#endif     infile[0] = outfile[0] = 0;    fp = op = NULL;    ret = 1;    p = NULL;    v = 0;     for (i = 1; i < argc; ++i) {        const char *a = argv[i];        if ('-' == a[0]) {            if (0 == strcmp(a, "-v")) {                v = 1;            } else if (0 == strcmp(a, "-o")) {                if (++i == argc)                    goto usage;                strcpy(outfile, argv[i]);            } else                goto usage;        } else if (0 == infile[0])            strcpy(infile, a);        else            goto usage;    }     if (0 == infile[0]) {usage:        fprintf(stderr,            "usage: tcc -impdef library.dll [-v] [-o outputfile]\n"            "create export definition file (.def) from dll\n"            );        goto the_end;    }     if (0 == outfile[0]) {        strcpy(outfile, tcc_basename(infile));        q = strrchr(outfile, '.');        if (NULL == q)            q = strchr(outfile, 0);        strcpy(q, ".def");    }     file = infile;#ifdef _WIN32    if (SearchPath(NULL, file, ".dll", sizeof path, path, NULL))        file = path;#endif    ret = tcc_get_dllexports(file, &p);    if (ret || !p) {        fprintf(stderr, "tcc: impdef: %s '%s'\n",            ret == -1 ? "can't find file" :            ret ==  1 ? "can't read symbols" :            ret ==  0 ? "no symbols found in" :            "unknown file type", file);        ret = 1;        goto the_end;    }     if (v)        printf("-> %s\n", file);     op = fopen(outfile, "wb");    if (NULL == op) {        fprintf(stderr, "tcc: impdef: could not create output file: %s\n", outfile);        goto the_end;    }     fprintf(op, "LIBRARY %s\n\nEXPORTS\n", tcc_basename(file));    for (q = p, i = 0; *q; ++i) {        fprintf(op, "%s\n", q);        q += strlen(q) + 1;    }     if (v)        printf("<- %s (%d symbol%s)\n", outfile, i, &"s"[i<2]);     ret = 0; the_end:    /* cannot free memory received from tcc_get_dllexports       if it came from a dll */    /* if (p)        tcc_free(p); */    if (fp)        fclose(fp);    if (op)        fclose(op);    return ret;} #endif /* TCC_TARGET_PE */ /* -------------------------------------------------------------- *//* *  TCC - Tiny C Compiler * *  Copyright (c) 2001-2004 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */ /* re-execute the i386/x86_64 cross-compilers with tcc -m32/-m64: */ #if !defined TCC_TARGET_I386 && !defined TCC_TARGET_X86_64 ST_FUNC void tcc_tool_cross(TCCState *s1, char **argv, int option){    tcc_error("-m%d not implemented.", option);} #else#ifdef _WIN32#include <process.h> static char *str_replace(const char *str, const char *p, const char *r){    const char *s, *s0;    char *d, *d0;    int sl, pl, rl;     sl = strlen(str);    pl = strlen(p);    rl = strlen(r);    for (d0 = NULL;; d0 = tcc_malloc(sl + 1)) {        for (d = d0, s = str; s0 = s, s = strstr(s, p), s; s += pl) {            if (d) {                memcpy(d, s0, sl = s - s0), d += sl;                memcpy(d, r, rl), d += rl;            } else                sl += rl - pl;        }        if (d) {            strcpy(d, s0);            return d0;        }    }} static int execvp_win32(const char *prog, char **argv){    int ret; char **p;    /* replace all " by \" */    for (p = argv; *p; ++p)        if (strchr(*p, '"'))            *p = str_replace(*p, "\"", "\\\"");    ret = _spawnvp(P_NOWAIT, prog, (const char *const*)argv);    if (-1 == ret)        return ret;    _cwait(&ret, ret, WAIT_CHILD);    exit(ret);}#define execvp execvp_win32#endif /* _WIN32 */ ST_FUNC void tcc_tool_cross(TCCState *s1, char **argv, int target){    char program[4096];    char *a0 = argv[0];    int prefix = tcc_basename(a0) - a0;     snprintf(program, sizeof program,        "%.*s%s"#ifdef TCC_TARGET_PE        "-win32"#endif        "-tcc"#ifdef _WIN32        ".exe"#endif        , prefix, a0, target == 64 ? "x86_64" : "i386");     if (strcmp(a0, program))        execvp(argv[0] = program, argv);

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