home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Geek Gadgets 1
/
ADE-1.bin
/
ade-dist
/
gcc-2.7.2.1-base.tgz
/
gcc-2.7.2.1-base.tar
/
fsf
/
gcc
/
config
/
winnt
/
ld.c
< prev
next >
Wrap
C/C++ Source or Header
|
1995-11-26
|
8KB
|
349 lines
/* Call Windows NT 3.x linker.
Copyright (C) 1994, 1995 Free Software Foundation, Inc.
Contributed by Douglas B. Rupp (drupp@cs.washington.edu).
This file is part of GNU CC.
GNU CC 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, or (at your option)
any later version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "config.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <process.h>
static char *concat ();
static char *concat3 ();
/* These can be set by command line arguments */
char *linker_path = 0;
int verbose = 0;
int subsystem = 0;
int entry = 0;
int link_arg_max = -1;
char **link_args = (char **) 0;
int link_arg_index = -1;
char *search_dirs = ".";
static int is_regular_file (char *name);
/* Add the argument contained in STR to the list of arguments to pass to the
linker */
static void
addarg (str)
char *str;
{
int i;
if (++link_arg_index >= link_arg_max)
{
char **new_link_args
= (char **) calloc (link_arg_max + 1000, sizeof (char *));
for (i = 0; i <= link_arg_max; i++)
new_link_args [i] = link_args [i];
if (link_args)
free (link_args);
link_arg_max += 1000;
link_args = new_link_args;
}
link_args [link_arg_index] = str;
}
/* Locate the file named in FILE_NAME in the set of paths contained in
PATH_VAL */
static char *
locate_file (file_name, path_val)
char *file_name;
char *path_val;
{
char buf [1000];
int file_len = strlen (file_name);
char *end_path = path_val + strlen (path_val);
char *ptr;
/* Handle absolute pathnames */
if (file_name [0] == '/' || file_name [0] == DIR_SEPARATOR
|| isalpha (file_name [0]) && file_name [1] == ':')
{
strncpy (buf, file_name, sizeof buf);
buf[sizeof buf - 1] = '\0';
if (is_regular_file (buf))
return strdup (buf);
else
return 0;
}
if (! path_val)
return 0;
for (;;)
{
for (; *path_val == PATH_SEPARATOR ; path_val++)
;
if (! *path_val)
return 0;
for (ptr = buf; *path_val && *path_val != PATH_SEPARATOR; )
*ptr++ = *path_val++;
ptr--;
if (*ptr != '/' && *ptr != DIR_SEPARATOR)
*++ptr = DIR_SEPARATOR;
strcpy (++ptr, file_name);
if (is_regular_file (buf))
return strdup (buf);
}
return 0;
}
/* Given a library name in NAME, i.e. foo. Look first for libfoo.lib and then
libfoo.a in the set of directories we are allowed to search in */
static char *
expand_lib (name)
char *name;
{
char *lib, *lib_path;
lib = malloc (strlen (name) + 8);
strcpy (lib, "lib");
strcat (lib, name);
strcat (lib, ".lib");
lib_path = locate_file (lib, search_dirs);
if (!lib_path)
{
strcpy (lib, "lib");
strcat (lib, name);
strcat (lib, ".a");
lib_path = locate_file (lib, search_dirs);
if (!lib_path)
{
fprintf
(stderr,
"Couldn't locate library: lib%s.a or lib%s.lib\n", name, name);
exit (1);
}
}
return lib_path;
}
/* Check to see if the file named in NAME is a regular file, i.e. not a
directory */
static int
is_regular_file (name)
char *name;
{
int ret;
struct stat statbuf;
ret = stat(name, &statbuf);
return !ret && S_ISREG (statbuf.st_mode);
}
/* Process the number of args in P_ARGC and contained in ARGV. Look for
special flags, etc. that must be handled for the Microsoft linker */
static void
process_args (p_argc, argv)
int *p_argc;
char *argv[];
{
int i, j;
for (i = 1; i < *p_argc; i++)
{
/* -v turns on verbose option here and is passed on to gcc */
if (! strcmp (argv [i], "-v"))
verbose = 1;
else if (! strncmp (argv [i], "-g", 2))
{
addarg ("-debugtype:coff -debug:full");
}
else if (! strncmp (argv [i], "-stack", 6))
{
i++;
addarg (concat ("-stack:",argv[i]));
}
else if (! strncmp (argv [i], "-subsystem", 10))
{
subsystem = 1;
i++;
addarg (concat ("-subsystem:",argv[i]));
}
else if (! strncmp (argv [i], "-e", 2))
{
entry = 1;
i++;
addarg (concat ("-entry:",&argv[i][1]));
}
}
}
/* The main program. Spawn the Microsoft linker after fixing up the
Unix-like flags and args to be what the Microsoft linker wants */
main (argc, argv)
int argc;
char *argv[];
{
int i;
int done_an_ali = 0;
int file_name_index;
char *pathval = getenv ("PATH");
char *spawn_args [5];
char *tmppathval = malloc (strlen (pathval) + 3);
strcpy (tmppathval, ".;");
pathval = strcat (tmppathval, pathval);
linker_path = locate_file ("link32.exe", pathval);
if (!linker_path)
{
linker_path = locate_file ("link.exe", pathval);
if (!linker_path)
{
fprintf (stderr, "Couldn't locate link32 or link\n");
exit (1);
}
}
addarg (linker_path);
process_args (&argc , argv);
if (! subsystem) addarg ("-subsystem:console");
if (! entry) addarg ("-entry:mainCRTStartup");
for (i = 1; i < argc; i++)
{
int arg_len = strlen (argv [i]);
if (!strcmp (argv [i], "-o"))
{
char *buff, *ptr;
int out_len;
i++;
out_len = strlen (argv[i]) + 10;
buff = malloc (out_len);
strcpy (buff, "-out:");
strcat (buff, argv[i]);
ptr = strstr (buff, ".exe");
if (ptr == NULL || strlen (ptr) != 4)
strcat (buff, ".exe");
addarg (buff);
}
else if (arg_len > 2 && !strncmp (argv [i], "-L", 2))
{
char *nbuff, *sdbuff;
int j, new_len, search_dirs_len;
new_len = strlen (&argv[i][2]);
search_dirs_len = strlen (search_dirs);
nbuff = malloc (new_len + 1);
strcpy (nbuff, &argv[i][2]);
for (j = 0; j < new_len; j++)
if (nbuff[j] == '/') nbuff[j] = DIR_SEPARATOR;
sdbuff = malloc (search_dirs_len + new_len + 2);
strcpy (sdbuff, search_dirs);
sdbuff[search_dirs_len] = PATH_SEPARATOR;
sdbuff[search_dirs_len+1] = 0;
strcat (sdbuff, nbuff);
search_dirs = sdbuff;
}
else if (arg_len > 2 && !strncmp (argv [i], "-l", 2))
{
addarg (expand_lib (&argv[i][2]));
}
else if (!strcmp (argv [i], "-v")
|| !strcmp (argv [i], "-g")
|| !strcmp (argv [i], "-noinhibit-exec"))
{
;
}
else if (!strcmp (argv [i], "-stack")
|| !strcmp (argv [i], "-subsystem")
|| !strcmp (argv [i], "-e"))
{
i++;
}
else
{
addarg (argv [i]);
}
}
addarg (NULL);
if (verbose)
{
int i;
for (i = 0; i < link_arg_index; i++)
printf ("%s ", link_args [i]);
putchar ('\n');
}
if (spawnvp (P_WAIT, linker_path, (const char * const *)link_args) != 0)
{
fprintf (stderr, "Error executing %s\n", link_args[0]);
exit (1);
}
exit (0);
}
static char *
concat (s1, s2)
char *s1, *s2;
{
int len1 = strlen (s1);
int len2 = strlen (s2);
char *result = malloc (len1 + len2 + 1);
strcpy (result, s1);
strcpy (result + len1, s2);
*(result + len1 + len2) = 0;
return result;
}
static char *
concat3 (s1, s2, s3)
char *s1, *s2, *s3;
{
return concat (concat (s1, s2), s3);
}