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cc.c

/*    $Id: cc.c,v 1.178 2011/04/12 08:17:42 gmcgarry Exp $  */
/*
 * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * Redistributions of source code and documentation must retain the above
 * copyright notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditionsand the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * All advertising materials mentioning features or use of this software
 * must display the following acknowledgement:
 *    This product includes software developed or owned by Caldera
 *    International, Inc.
 * Neither the name of Caldera International, Inc. nor the names of other
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
 * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
 * FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OFLIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Front-end to the C compiler.
 *
 * Brief description of its syntax:
 * - Files that end with .c are passed via cpp->ccom->as->ld
 * - Files that end with .i are passed via ccom->as->ld
 * - Files that end with .s are passed as->ld
 * - Files that end with .o are passed directly to ld
 * - Multiple files may be given on the command line.
 * - Unrecognized options are all sent directly to ld.
 * -c or -S cannot be combined with -o if multiple files are given.
 *
 * This file should be rewritten readable.
 */
#include "config.h"

#include <sys/types.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#ifdef HAVE_LIBGEN_H
#include <libgen.h>
#endif
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef WIN32
#include <windows.h>
#include <process.h>
#include <io.h>
#endif

#include "compat.h"

#include "ccconfig.h"
#include "macdefs.h"
/* C command */

#define     MKS(x) _MKS(x)
#define _MKS(x) #x

/*
 * Many specific definitions, should be declared elsewhere.
 */

#ifndef STDINC
#define     STDINC            "/usr/include/"
#endif

#ifndef LIBDIR
#define LIBDIR          "/usr/lib/"
#endif

#ifndef PREPROCESSOR
#define PREPROCESSOR    "cpp"
#endif

#ifndef COMPILER
#define COMPILER  "ccom"
#endif

#ifndef ASSEMBLER
#define ASSEMBLER "as"
#endif

#ifndef LINKER
#define LINKER          "ld"
#endif

#define OS MKS(TARGOS)
#define MACH MKS(TARGMACH)
#ifndef PCCINCDIR
#define PCCINCDIR LIBDIR "pcc/" MACH "-" OS "/" PACKAGE_VERSION "/include"
#endif
#ifndef PCCLIBDIR
#define PCCLIBDIR LIBDIR "pcc/" MACH "-" OS "/" PACKAGE_VERSION "/lib"
#endif

#ifndef MULTIOSDIR
#define MULTIOSDIR      "."
#endif


#define MAXFIL 10000
#define MAXLIB 10000
#define MAXAV  10000
#define MAXOPT 200
char  *tmp3;
char  *tmp4;
char  *outfile, *ermfile;
static void add_prefix(const char *);
static char *find_file(const char *, int);
char *copy(char *, int);
char *setsuf(char *, char);
int getsuf(char *);
int main(int, char *[]);
void error(char *, ...);
void errorx(int, char *, ...);
int callsys(char [], char *[]);
int cunlink(char *);
void dexit(int);
void idexit(int);
char *gettmp(void);
void *ccmalloc(int size);
#ifdef WIN32
char *win32pathsubst(char *);
char *win32commandline(char *, char *[]);
#endif
char  *av[MAXAV];
char  *clist[MAXFIL];
char    *olist[MAXFIL];
char  *llist[MAXLIB];
char  *aslist[MAXAV];
char  *cpplist[MAXAV];
char  alist[20];
char  *xlist[100];
int   xnum;
char  *mlist[100];
char  *flist[100];
char  *wlist[100];
char  *idirafter;
int   nm;
int   nf;
int   nw;
int   sspflag;
int   dflag;
int   pflag;
int   sflag;
int   cflag;
int   eflag;
int   gflag;
int   rflag;
int   vflag;
int   tflag;
int   Eflag;
int   Oflag;
int   kflag;      /* generate PIC/pic code */
#define F_PIC     1
#define F_pic     2
int   Mflag;      /* dependencies only */
int   pgflag;
int   exfail;
int   Xflag;
int   Wallflag;
int   Wflag;
int   nostartfiles, Bstatic, shared;
int   nostdinc, nostdlib;
int   onlyas;
int   pthreads;
int   xcflag;
int   ascpp;

char  *passp = LIBEXECDIR PREPROCESSOR;
char  *pass0 = LIBEXECDIR COMPILER;
char  *as = ASSEMBLER;
char  *ld = LINKER;
char  *sysroot;
char *cppadd[] = CPPADD;
#ifdef DYNLINKER
char *dynlinker[] = DYNLINKER;
#endif
#ifdef CRT0FILE
char *crt0file = CRT0FILE;
#endif
#ifdef CRT0FILE_PROFILE
char *crt0file_profile = CRT0FILE_PROFILE;
#endif
#ifdef STARTFILES
char *startfiles[] = STARTFILES;
char *endfiles[] = ENDFILES;
#endif
#ifdef STARTFILES_T
char *startfiles_T[] = STARTFILES_T;
char *endfiles_T[] = ENDFILES_T;
#endif
#ifdef STARTFILES_S
char *startfiles_S[] = STARTFILES_S;
char *endfiles_S[] = ENDFILES_S;
#endif
#ifdef MULTITARGET
char *mach = DEFMACH;
struct cppmd {
      char *mach;
      char *cppmdadd[MAXCPPMDARGS];
};

struct cppmd cppmds[] = CPPMDADDS;
#else
char *cppmdadd[] = CPPMDADD;
#endif
#ifdef LIBCLIBS
char *libclibs[] = LIBCLIBS;
#else
char *libclibs[] = { "-lc", NULL };
#endif
#ifdef LIBCLIBS_PROFILE
char *libclibs_profile[] = LIBCLIBS_PROFILE;
#else
char *libclibs_profile[] = { "-lc_p", NULL };
#endif
#ifndef STARTLABEL
#define STARTLABEL "__start"
#endif
char *incdir = STDINC;
char *altincdir = INCLUDEDIR "pcc/";
char *libdir = LIBDIR;
char *pccincdir = PCCINCDIR;
char *pcclibdir = PCCLIBDIR;
#ifdef mach_amd64
int amd64_i386;
#endif

/* handle gcc warning emulations */
00259 struct Wflags {
      char *name;
      int flags;
#define     INWALL            1
#define     NEGATIVE    2
} Wflags[] = {
      { "-Wtruncate", 0 },
      { "-Wno-truncate", NEGATIVE },
      { "-Werror", 0 },
      { "-Wshadow", 0 },
      { "-Wno-shadow", NEGATIVE },
      { "-Wpointer-sign", INWALL },
      { "-Wno-pointer-sign", NEGATIVE },
      { "-Wsign-compare", 0 },
      { "-Wno-sign-compare", NEGATIVE },
      { "-Wunknown-pragmas", INWALL },
      { "-Wno-unknown-pragmas", NEGATIVE },
      { "-Wunreachable-code", 0 },
      { "-Wno-unreachable-code", NEGATIVE },
      { 0, 0 },
};

#define     SZWFL (sizeof(Wflags)/sizeof(Wflags[0]))

#ifndef USHORT
/* copied from mip/manifest.h */
#define     USHORT            5
#define     INT         6
#define     UNSIGNED    7
#endif

/*
 * Wide char defines.
 */
#if WCHAR_TYPE == USHORT
#define     WCT "short unsigned int"
#define WCM "65535U"
#if WCHAR_SIZE != 2
#error WCHAR_TYPE vs. WCHAR_SIZE mismatch
#endif
#elif WCHAR_TYPE == INT
#define WCT "int"
#define WCM "2147483647"
#if WCHAR_SIZE != 4
#error WCHAR_TYPE vs. WCHAR_SIZE mismatch
#endif
#elif WCHAR_TYPE == UNSIGNED
#define WCT "unsigned int"
#define WCM "4294967295U"
#if WCHAR_SIZE != 4
#error WCHAR_TYPE vs. WCHAR_SIZE mismatch
#endif
#else
#error WCHAR_TYPE not defined or invalid
#endif

#ifdef GCC_COMPAT
#ifndef REGISTER_PREFIX
#define REGISTER_PREFIX ""
#endif
#ifndef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
#endif
#endif

#ifndef PCC_PTRDIFF_TYPE
#define PCC_PTRDIFF_TYPE "long int"
#endif

int
main(int argc, char *argv[])
{
      struct Wflags *Wf;
      char *t, *u;
      char *assource;
      char **pv, *ptemp[MAXOPT], **pvt;
      int nc, nl, nas, ncpp, i, j, c, nxo, na;
#ifdef MULTITARGET
      int k;
#endif

#ifdef WIN32
      /* have to prefix path early.  -B may override */
      incdir = win32pathsubst(incdir);
      altincdir = win32pathsubst(altincdir);
      libdir = win32pathsubst(libdir);
      pccincdir = win32pathsubst(pccincdir);
      pcclibdir = win32pathsubst(pcclibdir);
      passp = win32pathsubst(passp);
      pass0 = win32pathsubst(pass0);
#endif

      i = nc = nl = nas = ncpp = nxo = 0;
      pv = ptemp;
      while(++i < argc) {
            if (argv[i][0] == '-') {
                  switch (argv[i][1]) {
                  default:
                        goto passa;
#ifdef notyet
      /* must add library options first (-L/-l/...) */
                        error("unrecognized option `-%c'", argv[i][1]);
                        break;
#endif

                  case '-': /* double -'s */
                        if (strcmp(argv[i], "--version") == 0) {
                              printf("%s\n", VERSSTR);
                              return 0;
                        } else if (strncmp(argv[i], "--sysroot=", 10) == 0) {
                              sysroot = argv[i] + 10;
                        } else if (strcmp(argv[i], "--param") == 0) {
                              /* NOTHING YET */;
                              i++; /* ignore arg */
                        } else
                              goto passa;
                        break;

                  case 'B': /* other search paths for binaries */
                        add_prefix(argv[i] + 2);
                        break;

#ifdef MULTITARGET
                  case 'b':
                        t = &argv[i][2];
                        if (*t == '\0' && i + 1 < argc) {
                              t = argv[i+1];
                              i++;
                        }
                        if (strncmp(t, "?", 1) == 0) {
                              /* show machine targets */
                              printf("Available machine targets:");
                              for (j=0; cppmds[j].mach; j++)
                                    printf(" %s",cppmds[j].mach);
                              printf("\n");
                              exit(0);
                        }
                        for (j=0; cppmds[j].mach; j++)
                              if (strcmp(t, cppmds[j].mach) == 0) {
                                    mach = cppmds[j].mach;
                                    break;
                              }
                        if (cppmds[j].mach == NULL)
                              errorx(1, "unknown target arch %s", t);
                        break;
#endif

                  case 'X':
                        Xflag++;
                        break;
                  case 'W': /* Ignore (most of) W-flags */
                        if (strncmp(argv[i], "-Wl,", 4) == 0) {
                              /* options to the linker */
                              t = &argv[i][4];
                              while ((u = strchr(t, ','))) {
                                    *u++ = 0;
                                    llist[nl++] = t;
                                    t = u;
                              }
                              llist[nl++] = t;
                        } else if (strncmp(argv[i], "-Wa,", 4) == 0) {
                              /* options to the assembler */
                              t = &argv[i][4];
                              while ((u = strchr(t, ','))) {
                                    *u++ = 0;
                                    aslist[nas++] = t;
                                    t = u;
                              }
                              aslist[nas++] = t;
                        } else if (strncmp(argv[i], "-Wc,", 4) == 0) {
                              /* options to ccom */
                              t = &argv[i][4];
                              while ((u = strchr(t, ','))) {
                                    *u++ = 0;
                                    wlist[nw++] = t;
                                    t = u;
                              }
                              wlist[nw++] = t;
                        } else if (strncmp(argv[i], "-Wp,", 4) == 0) {
                              /* preprocessor */
                              t = &argv[i][4];
                              while ((u = strchr(t, ','))) {
                                    *u++ = 0;
                                    cpplist[ncpp++] = t;
                                    t = u;
                              }
                              cpplist[ncpp++] = t;
                        } else if (strcmp(argv[i], "-Wall") == 0) {
                              Wallflag = 1;
                        } else if (strcmp(argv[i], "-WW") == 0) {
                              Wflag = 1;
                        } else {
                              /* check and set if available */
                              for (Wf = Wflags; Wf->name; Wf++) {
                                    if (strcmp(argv[i], Wf->name))
                                          continue;
                                    wlist[nw++] = Wf->name;
                              }
                        }
                        break;

                  case 'f': /* GCC compatibility flags */
                        if (strcmp(argv[i], "-fPIC") == 0)
                              kflag = F_PIC;
                        else if (strcmp(argv[i], "-fpic") == 0)
                              kflag = F_pic;
                        else if (strcmp(argv[i],
                            "-fsigned-char") == 0)
                              flist[nf++] = argv[i];
                        else if (strcmp(argv[i],
                            "-fno-signed-char") == 0)
                              flist[nf++] = argv[i];
                        else if (strcmp(argv[i],
                            "-funsigned-char") == 0)
                              flist[nf++] = argv[i];
                        else if (strcmp(argv[i],
                            "-fno-unsigned-char") == 0)
                              flist[nf++] = argv[i];
                        else if (strcmp(argv[i],
                            "-fstack-protector") == 0) {
                              flist[nf++] = argv[i];
                              sspflag++;
                        } else if (strcmp(argv[i],
                            "-fstack-protector-all") == 0) {
                              flist[nf++] = argv[i];
                              sspflag++;
                        } else if (strcmp(argv[i],
                            "-fno-stack-protector") == 0) {
                              flist[nf++] = argv[i];
                              sspflag = 0;
                        } else if (strcmp(argv[i],
                            "-fno-stack-protector-all") == 0) {
                              flist[nf++] = argv[i];
                              sspflag = 0;
                        }
                        /* silently ignore the rest */
                        break;

                  case 'g': /* create debug output */
                        if (argv[i][2] == '0')
                              gflag = 0;
                        else
                              gflag++;
                        break;

                  case 'i':
                        if (strcmp(argv[i], "-isystem") == 0) {
                              *pv++ = "-S";
                              *pv++ = argv[++i];
                        } else if (strcmp(argv[i], "-include") == 0) {
                              *pv++ = "-i";
                              *pv++ = argv[++i];
                        } else if (strcmp(argv[i], "-idirafter") == 0) {
                              idirafter = argv[++i];
#ifdef os_darwin
                        } else if (strcmp(argv[i], "-install_name") == 0) {
                              llist[nl++] = argv[i];
                              llist[nl++] = argv[++i];
#endif
                        } else
                              goto passa;
                        break;

                  case 'k': /* generate PIC code */
                        kflag = F_pic;
                        break;

                  case 'm': /* target-dependent options */
#ifdef mach_amd64
                        /* need to call i386 ccom for this */
                        if (strcmp(argv[i], "-m32") == 0) {
                              pass0 = LIBEXECDIR "/ccom_i386";
                              amd64_i386 = 1;
                              break;
                        }
#endif
                        mlist[nm++] = argv[i];
                        if (argv[i][2] == 0) {
                              /* separate second arg */
                              /* give also to linker */
                              llist[nl++] = argv[i++];
                              mlist[nm++] = argv[i];
                              llist[nl++] = argv[i];
                        }
                        break;

                  case 'n': /* handle -n flags */
                        if (strcmp(argv[i], "-nostdinc") == 0)
                              nostdinc++;
                        else if (strcmp(argv[i], "-nostdlib") == 0) {
                              nostdlib++;
                              nostartfiles++;
                        } else if (strcmp(argv[i], "-nostartfiles") == 0)
                              nostartfiles = 1;
                        else
                              goto passa;
                        break;

                  case 'p':
                        if (strcmp(argv[i], "-pg") == 0 ||
                            strcmp(argv[i], "-p") == 0)
                              pgflag++;
                        else if (strcmp(argv[i], "-pthread") == 0)
                              pthreads++;
                        else if (strcmp(argv[i], "-pipe") == 0)
                              /* NOTHING YET */;
                        else if (strcmp(argv[i], "-pedantic") == 0)
                              /* NOTHING YET */;
                        else if (strcmp(argv[i],
                            "-print-prog-name=ld") == 0) {
                              printf("%s\n", LINKER);
                              return 0;
                        } else if (strcmp(argv[i],
                            "-print-multi-os-directory") == 0) {
                              printf("%s\n", MULTIOSDIR);
                              return 0;
                        } else
                              errorx(1, "unknown option %s", argv[i]);
                        break;

                  case 'r':
                        rflag = 1;
                        break;

                  case 'x':
                        t = &argv[i][2];
                        if (*t == 0)
                              t = argv[++i];
                        if (strcmp(t, "c") == 0)
                              xcflag = 1; /* default */
                        else if (strcmp(t, "assembler-with-cpp") == 0)
                              ascpp = 1;
#ifdef notyet
                        else if (strcmp(t, "c++") == 0)
                              cxxflag++;
#endif
                        else
                              xlist[xnum++] = argv[i];
                        break;
                  case 't':
                        tflag++;
                        break;
                  case 'S':
                        sflag++;
                        cflag++;
                        break;
                  case 'o':
                        if (outfile)
                              errorx(8, "too many -o");
                        outfile = argv[++i];
                        break;
                  case 'O':
                        if (argv[i][2] == '0')
                              Oflag = 0;
                        else
                              Oflag++;
                        break;
                  case 'E':
                        Eflag++;
                        break;
                  case 'P':
                        pflag++;
                        *pv++ = argv[i];
                  case 'c':
#ifdef os_darwin
                        if (strcmp(argv[i], "-compatibility_version") == 0) {
                              llist[nl++] = argv[i];
                              llist[nl++] = argv[++i];
                        } else if (strcmp(argv[i], "-current_version") == 0) {
                              llist[nl++] = argv[i];
                              llist[nl++] = argv[++i];
                        } else
#endif
                              cflag++;
                        break;
#if 0
                  case '2':
                        if(argv[i][2] == '\0')
                              pref = "/lib/crt2.o";
                        else {
                              pref = "/lib/crt20.o";
                        }
                        break;
#endif
                  case 'C':
                        cpplist[ncpp++] = argv[i];
                        break;
                  case 'D':
                  case 'I':
                  case 'U':
                        *pv++ = argv[i];
                        if (argv[i][2] == 0)
                              *pv++ = argv[++i];
                        if (pv >= ptemp+MAXOPT) {
                              error("Too many DIU options");
                              --pv;
                        }
                        break;

                  case 'M':
                        Mflag++;
                        break;

                  case 'd':
#ifdef os_darwin
                        if (strcmp(argv[i], "-dynamiclib") == 0) {
                              shared = 1;
                        } else
#endif
                        if (strcmp(argv[i], "-d") == 0) {
                              dflag++;
                              strlcpy(alist, argv[i], sizeof (alist));
                        }
                        break;
                  case 'v':
                        printf("%s\n", VERSSTR);
                        vflag++;
                        break;

                  case 's':
#ifndef os_darwin
                        if (strcmp(argv[i], "-shared") == 0) {
                              shared = 1;
#ifndef os_win32
                              nostdlib = 1;
#endif
                        } else
#endif
                        if (strcmp(argv[i], "-static") == 0) {
                              Bstatic = 1;
                        } else if (strncmp(argv[i], "-std", 4) == 0) {
                              /* ignore gcc -std= */;
                        } else
                              goto passa;
                        break;
                  }
            } else {
            passa:
                  t = argv[i];
                  if (*argv[i] == '-' && argv[i][1] == 'L')
                        ;
                  else if((c=getsuf(t))=='c' || c=='S' || c=='i' ||
                      c=='s'|| Eflag || xcflag) {
                        clist[nc++] = t;
                        if (nc>=MAXFIL) {
                              error("Too many source files");
                              exit(1);
                        }
                  }

                  /* Check for duplicate .o files. */
                  for (j = getsuf(t) == 'o' ? 0 : nl; j < nl; j++) {
                        if (strcmp(llist[j], t) == 0)
                              break;
                  }
                  if ((c=getsuf(t))!='c' && c!='S' &&
                      c!='s' && c!='i' && j==nl) {
                        llist[nl++] = t;
                        if (nl >= MAXLIB) {
                              error("Too many object/library files");
                              exit(1);
                        }
                        if (getsuf(t)=='o')
                              nxo++;
                  }
            }
      }
      /* Sanity checking */
      if (nc == 0 && nl == 0)
            errorx(8, "no input files");
      if (outfile && (cflag || sflag || Eflag) && nc > 1)
            errorx(8, "-o given with -c || -E || -S and more than one file");
      if (outfile && clist[0] && strcmp(outfile, clist[0]) == 0)
            errorx(8, "output file will be clobbered");
      if (nc==0)
            goto nocom;
      if (pflag==0) {
            if (!sflag)
                  tmp3 = gettmp();
            tmp4 = gettmp();
      }
      if (signal(SIGINT, SIG_IGN) != SIG_IGN)   /* interrupt */
            signal(SIGINT, idexit);
      if (signal(SIGTERM, SIG_IGN) != SIG_IGN)  /* terminate */
            signal(SIGTERM, idexit);
#ifdef MULTITARGET
      pass0 = copy(LIBEXECDIR "/ccom_", k = strlen(mach));
      strlcat(pass0, mach, sizeof(LIBEXECDIR "/ccom_") + k);
#endif
      pvt = pv;
      for (i=0; i<nc; i++) {
            /*
             * C preprocessor
             */
            if (nc>1 && !Eflag)
                  printf("%s:\n", clist[i]);
            onlyas = 0;
            assource = tmp3;
            if (getsuf(clist[i])=='S')
                  ascpp = 1;
            if (getsuf(clist[i])=='i') {
                  if(Eflag)
                        continue;
                  goto com;
            } else if (ascpp) {
                  onlyas = 1;
            } else if (getsuf(clist[i])=='s') {
                  assource = clist[i];
                  goto assemble;
            }
            if (pflag)
                  tmp4 = setsuf(clist[i], 'i');
            na = 0;
            av[na++] = "cpp";
            if (vflag)
                  av[na++] = "-v";
            av[na++] = "-D__PCC__=" MKS(PCC_MAJOR);
            av[na++] = "-D__PCC_MINOR__=" MKS(PCC_MINOR);
            av[na++] = "-D__PCC_MINORMINOR__=" MKS(PCC_MINORMINOR);
#ifndef os_win32
#ifdef GCC_COMPAT
            av[na++] = "-D__GNUC__=4";
            av[na++] = "-D__GNUC_MINOR__=3";
            av[na++] = "-D__GNUC_PATCHLEVEL__=1";
            av[na++] = "-D__GNUC_STDC_INLINE__=1";
#endif
#endif
            av[na++] = "-D__VERSION__=" MKS(VERSSTR);
            av[na++] = "-D__SCHAR_MAX__=" MKS(MAX_CHAR);
            av[na++] = "-D__SHRT_MAX__=" MKS(MAX_SHORT);
            av[na++] = "-D__INT_MAX__=" MKS(MAX_INT);
            av[na++] = "-D__LONG_MAX__=" MKS(MAX_LONG);
            av[na++] = "-D__LONG_LONG_MAX__=" MKS(MAX_LONGLONG);
#ifdef CHAR_UNSIGNED
            av[na++] = "-D__CHAR_UNSIGNED__";
#endif
            if (ascpp)
                  av[na++] = "-D__ASSEMBLER__";
            if (sspflag)
                  av[na++] = "-D__SSP__=1";
            if (pthreads)
                  av[na++] = "-D_PTHREADS";
            if (Mflag)
                  av[na++] = "-M";
            if (Oflag)
                  av[na++] = "-D__OPTIMIZE__";
#ifdef GCC_COMPAT
            av[na++] = "-D__REGISTER_PREFIX__=" REGISTER_PREFIX;
            av[na++] = "-D__USER_LABEL_PREFIX__=" USER_LABEL_PREFIX;
            if (Oflag)
                  av[na++] = "-D__OPTIMIZE__";
#endif
            if (dflag)
                  av[na++] = alist;
            for (j = 0; cppadd[j]; j++)
                  av[na++] = cppadd[j];
            for (j = 0; j < ncpp; j++)
                  av[na++] = cpplist[j];
            av[na++] = "-D__STDC_ISO_10646__=200009L";
            av[na++] = "-D__WCHAR_TYPE__=" WCT;
            av[na++] = "-D__SIZEOF_WCHAR_T__=" MKS(WCHAR_SIZE);
            av[na++] = "-D__WCHAR_MAX__=" WCM;
            av[na++] = "-D__WINT_TYPE__=unsigned int";
            av[na++] = "-D__SIZE_TYPE__=unsigned long";
            av[na++] = "-D__PTRDIFF_TYPE__=" PCC_PTRDIFF_TYPE;
            av[na++] = "-D__SIZEOF_WINT_T__=4";
#ifdef os_darwin
            av[na++] = "-D__FLT_MIN__=1.17549435e-38F";
            av[na++] = "-D__DBL_MIN__=2.2250738585072014e-308";
            av[na++] = "-D__LDBL_MIN__=3.36210314311209350626e-4932L";
#endif
#ifdef MULTITARGET
            for (k = 0; cppmds[k].mach; k++) {
                  if (strcmp(cppmds[k].mach, mach) != 0)
                        continue;
                  for (j = 0; cppmds[k].cppmdadd[j]; j++)
                        av[na++] = cppmds[k].cppmdadd[j];
                  break;
            }
#else
            for (j = 0; cppmdadd[j]; j++)
                  av[na++] = cppmdadd[j];
#endif
            if (tflag)
                  av[na++] = "-t";
            for(pv=ptemp; pv <pvt; pv++)
                  av[na++] = *pv;
            if (!nostdinc) {
                  av[na++] = "-S", av[na++] = altincdir;
                  av[na++] = "-S", av[na++] = incdir;
                  av[na++] = "-S", av[na++] = pccincdir;
            }
            if (idirafter) {
                  av[na++] = "-I";
                  av[na++] = idirafter;
            }
            av[na++] = clist[i];
            if (!Eflag && !Mflag)
                  av[na++] = tmp4;
            if ((Eflag || Mflag) && outfile)
                   ermfile = av[na++] = outfile;
            av[na++]=0;
            if (callsys(passp, av)) {
                  exfail++;
                  eflag++;
            }
            if (Eflag || Mflag)
                  continue;
            if (onlyas) {
                  assource = tmp4;
                  goto assemble;
            }

            /*
             * C compiler
             */
      com:
            na = 0;
            av[na++]= "ccom";
            if (Wallflag) {
                  /* Set only the same flags as gcc */
                  for (Wf = Wflags; Wf->name; Wf++) {
                        if (Wf->flags != INWALL)
                              continue;
                        av[na++] = Wf->name;
                  }
            }
            if (Wflag) {
                  /* set all positive flags */
                  for (Wf = Wflags; Wf->name; Wf++) {
                        if (Wf->flags == NEGATIVE)
                              continue;
                        av[na++] = Wf->name;
                  }
            }
            for (j = 0; j < nw; j++)
                  av[na++] = wlist[j];
            for (j = 0; j < nf; j++)
                  av[na++] = flist[j];
#if !defined(os_sunos) && !defined(mach_i386)
            if (vflag)
                  av[na++] = "-v";
#endif
            if (pgflag)
                  av[na++] = "-p";
            if (gflag)
                  av[na++] = "-g";
#ifdef os_darwin
            /* darwin always wants PIC compilation */
            if (!Bstatic)
                  av[na++] = "-k";
#elif defined(os_sunos) && defined(mach_i386)
            if (kflag) {
                  av[na++] = "-K";
                  av[na++] = "pic";
            }
#else
            if (kflag)
                  av[na++] = "-k";
#endif
            if (Oflag) {
                  av[na++] = "-xtemps";
                  av[na++] = "-xdeljumps";
                  av[na++] = "-xinline";
            }
            for (j = 0; j < xnum; j++)
                  av[na++] = xlist[j];
            for (j = 0; j < nm; j++)
                  av[na++] = mlist[j];
            if (getsuf(clist[i])=='i')
                  av[na++] = clist[i];
            else
                  av[na++] = tmp4; /* created by cpp */
            if (pflag || exfail)
                  {
                  cflag++;
                  continue;
                  }
            if(sflag) {
                  if (outfile)
                        tmp3 = outfile;
                  else
                        tmp3 = setsuf(clist[i], 's');
            }
            ermfile = av[na++] = tmp3;
#if 0
            if (proflag) {
                  av[3] = "-XP";
                  av[4] = 0;
            } else
                  av[3] = 0;
#endif
            av[na++] = NULL;
            if (callsys(pass0, av)) {
                  cflag++;
                  eflag++;
                  continue;
            }
            if (sflag)
                  continue;

            /*
             * Assembler
             */
      assemble:
            na = 0;
            av[na++] = as;
            for (j = 0; j < nas; j++)
                  av[na++] = aslist[j];
#if defined(USE_YASM)
            av[na++] = "-p";
            av[na++] = "gnu";
            av[na++] = "-f";
#if defined(os_win32)
            av[na++] = "win32";
#elif defined(os_darwin)
            av[na++] = "macho";
#else
            av[na++] = "elf";
#endif
#endif
#if defined(os_sunos) && defined(mach_sparc64)
            av[na++] = "-m64";
#endif
#if defined(os_darwin)
            if (Bstatic)
                  av[na++] = "-static";
#endif
#if !defined(USE_YASM)
            if (vflag)
                  av[na++] = "-v";
#endif
            if (kflag)
                  av[na++] = "-k";
#ifdef mach_amd64
            if (amd64_i386)
                  av[na++] = "--32";
#endif
            av[na++] = "-o";
            if (outfile && cflag)
                  ermfile = av[na++] = outfile;
            else if (cflag)
                  ermfile = av[na++] = olist[i] = setsuf(clist[i], 'o');
            else
                  ermfile = av[na++] = olist[i] = gettmp();
            av[na++] = assource;
            if (dflag)
                  av[na++] = alist;
            av[na++] = 0;
            if (callsys(as, av)) {
                  cflag++;
                  eflag++;
                  cunlink(tmp4);
                  continue;
            }
            cunlink(tmp4);
      }

      if (Eflag || Mflag)
            dexit(eflag);

      /*
       * Linker
       */
nocom:
      if (cflag==0 && nc+nl != 0) {
            j = 0;
            av[j++] = ld;
#ifndef MSLINKER
            if (vflag)
                  av[j++] = "-v";
#endif
#if !defined(os_sunos) && !defined(os_win32) && !defined(os_darwin)
            av[j++] = "-X";
#endif
            if (shared) {
#ifdef os_darwin
                  av[j++] = "-dylib";
#else
                  av[j++] = "-shared";
#endif
#ifdef os_win32
                  av[j++] = "-Bdynamic";
#endif
#ifndef os_sunos
            } else {
#ifndef os_win32
#ifndef os_darwin
                  av[j++] = "-d";
#endif
                  if (rflag) {
                        av[j++] = "-r";
                  } else {
                        av[j++] = "-e";
                        av[j++] = STARTLABEL;
                  }
#endif
#endif
                  if (Bstatic == 0) { /* Dynamic linkage */
#ifdef DYNLINKER
                        for (i = 0; dynlinker[i]; i++)
                              av[j++] = dynlinker[i];
#endif
                  } else {
#ifdef os_darwin
                        av[j++] = "-static";
#else
                        av[j++] = "-Bstatic";
#endif
                  }
            }
            if (outfile) {
#ifdef MSLINKER
#define     OUTSTR      "/OUT:"
                  char *s = copy(OUTSTR, i = strlen(outfile));
                  strlcat(s, outfile, sizeof(OUTSTR) + i);
                  av[j++] = s;
#else
                  av[j++] = "-o";
                  av[j++] = outfile;
#endif
            }
#ifdef STARTFILES_S
            if (shared) {
                  if (!nostartfiles) {
                        for (i = 0; startfiles_S[i]; i++)
                              av[j++] = find_file(startfiles_S[i], R_OK);
                  }
            } else
#endif
            {
                  if (!nostartfiles) {
#ifdef CRT0FILE_PROFILE
                        if (pgflag) {
                              av[j++] = find_file(crt0file_profile, R_OK);
                        } else
#endif
                        {
#ifdef CRT0FILE
                              av[j++] = find_file(crt0file, R_OK);
#endif
                        }
#ifdef STARTFILES_T
                        if (Bstatic) {
                              for (i = 0; startfiles_T[i]; i++)
                                    av[j++] = find_file(startfiles_T[i], R_OK);
                        } else
#endif
                        {
#ifdef STARTFILES
                              for (i = 0; startfiles[i]; i++)
                                    av[j++] = find_file(startfiles[i], R_OK);
#endif
                        }
                  }
            }
            i = 0;
            while (i<nc) {
                  av[j++] = olist[i++];
                  if (j >= MAXAV)
                        error("Too many ld options");
            }
            i = 0;
            while(i<nl) {
                  av[j++] = llist[i++];
                  if (j >= MAXAV)
                        error("Too many ld options");
            }
#if !defined(os_darwin) && !defined(os_sunos)
            /* darwin assembler doesn't want -g */
            if (gflag)
                  av[j++] = "-g";
#endif
#if 0
            if (gflag)
                  av[j++] = "-lg";
#endif
            if (pthreads)
                  av[j++] = "-lpthread";
            if (!nostdlib) {
#ifdef MSLINKER
#define     LFLAG "/LIBPATH:"
#else
#define     LFLAG "-L"
#endif
                  char *s = copy(LFLAG, i = strlen(pcclibdir));
                  strlcat(s, pcclibdir, sizeof(LFLAG) + i);
                  av[j++] = s;
#ifdef os_win32
                  s = copy(LFLAG, i = strlen(libdir));
                  strlcat(s, libdir, sizeof(LFLAG) + i);
                  av[j++] = s;
#endif
                  if (pgflag) {
                        for (i = 0; libclibs_profile[i]; i++)
                              av[j++] = find_file(libclibs_profile[i], R_OK);
                  } else {
                        for (i = 0; libclibs[i]; i++)
                              av[j++] = find_file(libclibs[i], R_OK);
                  }
            }
            if (!nostartfiles) {
#ifdef STARTFILES_S
                  if (shared) {
                        for (i = 0; endfiles_S[i]; i++)
                              av[j++] = find_file(endfiles_S[i], R_OK);
                  } else 
#endif
                  {
#ifdef STARTFILES_T
                        if (Bstatic) {
                              for (i = 0; endfiles_T[i]; i++)
                                    av[j++] = find_file(endfiles_T[i], R_OK);
                        } else
#endif
                        {
#ifdef STARTFILES
                              for (i = 0; endfiles[i]; i++)
                                    av[j++] = find_file(endfiles[i], R_OK);
#endif
                        }
                  }
            }
            av[j++] = 0;
            eflag |= callsys(ld, av);
            if (nc==1 && nxo==1 && eflag==0)
                  cunlink(olist[0]);
            else if (nc > 0 && eflag == 0) {
                  /* remove .o files XXX ugly */
                  for (i = 0; i < nc; i++)
                        cunlink(olist[i]);
            }
      }
      dexit(eflag);
      return 0;
}

/*
 * exit and cleanup after interrupt.
 */
void
idexit(int arg)
{
      dexit(100);
}

/*
 * exit and cleanup.
 */
void
dexit(int eval)
{
      if (!pflag && !Xflag) {
            if (sflag==0)
                  cunlink(tmp3);
            cunlink(tmp4);
      }
      if (exfail || eflag)
            cunlink(ermfile);
      if (eval == 100)
            _exit(eval);
      exit(eval);
}

static void
ccerror(char *s, va_list ap)
{
      vfprintf(Eflag ? stderr : stdout, s, ap);
      putc('\n', Eflag? stderr : stdout);
      exfail++;
      cflag++;
      eflag++;
}

/*
 * complain a bit.
 */
void
error(char *s, ...)
{
      va_list ap;

      va_start(ap, s);
      ccerror(s, ap);
      va_end(ap);
}

/*
 * complain a bit and then exit.
 */
void
errorx(int eval, char *s, ...)
{
      va_list ap;

      va_start(ap, s);
      ccerror(s, ap);
      va_end(ap);
      dexit(eval);
}

static size_t file_prefixes_cnt;
static char **file_prefixes;

static void
add_prefix(const char *prefix)
{
      file_prefixes = realloc(file_prefixes,
          sizeof(*file_prefixes) * (file_prefixes_cnt + 1));
      if (file_prefixes == NULL) {
            error("malloc failed");
            exit(1);
      }
      if ((file_prefixes[file_prefixes_cnt++] = strdup(prefix)) == NULL) {
            error("malloc failed");
            exit(1);
      }
}

static char *
find_file(const char *base, int mode)
{
      char *path;
      size_t baselen = strlen(base);
      size_t sysrootlen = sysroot ? strlen(sysroot) : 0;
      size_t len, prefix_len, i;

      for (i = 0; i < file_prefixes_cnt; ++i) {
            prefix_len = strlen(file_prefixes[i]);
            len = prefix_len + + baselen + 2;
            if (file_prefixes[i][0] == '=') {
                  len += sysrootlen;
                  path = malloc(len);
                  snprintf(path, len, "%s%s/%s", sysroot,
                      file_prefixes[i] + 1, base);
            } else {
                  path = malloc(len);
                  snprintf(path, len, "%s/%s", file_prefixes[i], base);
            }
            if (access(path, mode) == 0)
                  return path;
            free(path);
      }

      path = strdup(base);
      if (path == NULL) {
            error("malloc failed");
            exit(1);
      }
      return path;
}

int
getsuf(char *s)
{
      register char *p;

      if ((p = strrchr(s, '.')) && p[1] != '\0' && p[2] == '\0')
            return p[1];
      return(0);
}

/*
 * Get basename of string s and change its suffix to ch.
 */
char *
setsuf(char *s, char ch)
{
      char *p;

      s = copy(basename(s), 2);
      if ((p = strrchr(s, '.')) == NULL) {
            p = s + strlen(s);
            p[0] = '.';
      }
      p[1] = ch;
      p[2] = '\0';
      return(s);
}

#ifdef WIN32
#define MAX_CMDLINE_LENGTH 32768
int
callsys(char *f, char *v[])
{
      char *cmd;
      STARTUPINFO si;
      PROCESS_INFORMATION pi;
      DWORD exitCode;
      BOOL ok;

      cmd = win32commandline(f, v);
      if (vflag)
            printf("%s\n", cmd);

      ZeroMemory(&si, sizeof(STARTUPINFO));
      si.cb = sizeof(STARTUPINFO);
      ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));

      ok = CreateProcess(NULL,  // the executable program
            cmd,   // the command line arguments
            NULL,       // ignored
            NULL,       // ignored
            TRUE,       // inherit handles
            HIGH_PRIORITY_CLASS,
            NULL,       // ignored
            NULL,       // ignored
            &si,
            &pi);

      if (!ok) {
            fprintf(stderr, "Can't find %s\n", f);
            return 100;
      }

      WaitForSingleObject(pi.hProcess, INFINITE);
      GetExitCodeProcess(pi.hProcess, &exitCode);
      CloseHandle(pi.hProcess);
      CloseHandle(pi.hThread);

      return (exitCode != 0);
}

#else

int
callsys(char *f, char *v[])
{
      int t, status = 0;
      pid_t p;
      char *prog;

      if (vflag) {
            fprintf(stderr, "%s ", f);
            for (t = 1; v[t]; t++)
                  fprintf(stderr, "%s ", v[t]);
            fprintf(stderr, "\n");
      }

      prog = find_file(f, X_OK);
#ifdef HAVE_VFORK
      if ((p = vfork()) == 0) {
#else
      if ((p = fork()) == 0) {
#endif
            static const char msg[] = "Can't find ";
            execvp(prog, v);
            (void)write(STDERR_FILENO, msg, sizeof(msg));
            (void)write(STDERR_FILENO, prog, strlen(prog));
            (void)write(STDERR_FILENO, "\n", 1);
            _exit(100);
      }
      if (p == -1) {
            fprintf(stderr, "fork() failed, try again\n");
            return(100);
      }
      free(prog);
      while (waitpid(p, &status, 0) == -1 && errno == EINTR)
            ;
      if (WIFEXITED(status))
            return (WEXITSTATUS(status));
      if (WIFSIGNALED(status))
            dexit(eflag ? eflag : 1);
      errorx(8, "Fatal error in %s", f);

      return 0;
}
#endif

/*
 * Make a copy of string as, mallocing extra bytes in the string.
 */
char *
copy(char *s, int extra)
{
      int len = strlen(s)+1;
      char *rv;

      rv = ccmalloc(len+extra);
      strlcpy(rv, s, len);
      return rv;
}

int
cunlink(char *f)
{
      if (f==0 || Xflag)
            return(0);
      return (unlink(f));
}

#ifdef WIN32
char *
gettmp(void)
{
#define BUFFSIZE 1000
      DWORD pathSize;
      char pathBuffer[BUFFSIZE];
      char tempFilename[MAX_PATH];
      UINT uniqueNum;

      pathSize = GetTempPath(BUFFSIZE, pathBuffer);
      if (pathSize < BUFFSIZE)
            pathBuffer[pathSize] = 0;
      else
            pathBuffer[0] = 0;
      uniqueNum = GetTempFileName(pathBuffer, "ctm", 0, tempFilename);
      if (uniqueNum == 0) {
            fprintf(stderr, "%s:\n", pathBuffer);
            exit(8);
      }
      return copy(tempFilename, 0);
}

#else

char *
gettmp(void)
{
      char *sfn = copy("/tmp/ctm.XXXXXX", 0);
      int fd = -1;

      if ((fd = mkstemp(sfn)) == -1) {
            fprintf(stderr, "%s: %s\n", sfn, strerror(errno));
            exit(8);
      }
      close(fd);
      return sfn;
}
#endif

void *
ccmalloc(int size)
{
      void *rv;

      if ((rv = malloc(size)) == NULL)
            error("malloc failed");
      return rv;
}

#ifdef WIN32

char *
win32pathsubst(char *s)
{
      char env[1024];
      char *rv;
      int len;

      len = ExpandEnvironmentStrings(s, env, sizeof(env));
      if (len <= 0)
            return s;

      while (env[len-1] == '/' || env[len-1] == '\\' || env[len-1] == '\0')
            env[--len] = 0;

      rv = ccmalloc(len+1);
      strlcpy(rv, env, len+1);

      return rv;
}

char *
win32commandline(char *f, char *args[])
{
      char *cmd;
      char *p;
      int len;
      int i, j, k;

      len = strlen(f) + 3;

      for (i = 1; args[i] != NULL; i++) {
            for (j = 0; args[i][j] != '\0'; j++) {
                  len++;
                  if (args[i][j] == '\"') {
                        for (k = j-1; k >= 0 && args[i][k] == '\\'; k--)
                              len++;
                  }
            }
            for (k = j-1; k >= 0 && args[i][k] == '\\'; k--)
                  len++;
            len += j + 3;
      }

      p = cmd = ccmalloc(len);
      *p++ = '\"';
      p += strlcpy(p, f, len-1);
      *p++ = '\"';
      *p++ = ' ';

      for (i = 1; args[i] != NULL; i++) {
            *p++ = '\"';
            for (j = 0; args[i][j] != '\0'; j++) {
                  if (args[i][j] == '\"') {
                        for (k = j-1; k >= 0 && args[i][k] == '\\'; k--)
                              *p++ = '\\';
                        *p++ = '\\';
                  }
                  *p++ = args[i][j];
            }
            for (k = j-1; k >= 0 && args[i][k] == '\\'; k--)
                  *p++ = '\\';
            *p++ = '\"';
            *p++ = ' ';
      }
      p[-1] = '\0';

      return cmd;
}

#endif

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