778 lines
19 KiB
C
778 lines
19 KiB
C
/* VMS linker wrapper.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
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Free Software Foundation, Inc.
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Contributed by Douglas B. Rupp (rupp@gnat.com).
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This program is a wrapper around the VMS linker.
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It translates Unix style command line options into corresponding
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VMS style qualifiers and then spawns the VMS linker. */
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#include "config.h"
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#include "system.h"
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typedef struct dsc {unsigned short len, mbz; char *adr; } Descr;
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#undef PATH_SEPARATOR
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#undef PATH_SEPARATOR_STR
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#define PATH_SEPARATOR ','
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#define PATH_SEPARATOR_STR ","
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/* Local variable declarations. */
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/* File specification for vms-dwarf2.o. */
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static char *vmsdwarf2spec = 0;
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/* File specification for vms-dwarf2eh.o. */
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static char *vmsdwarf2ehspec = 0;
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/* verbose = 1 if -v passed. */
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static int verbose = 0;
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/* save_temps = 1 if -save-temps passed. */
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static int save_temps = 0;
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/* By default don't generate executable file if there are errors
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in the link. Override with --noinhibit-exec. */
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static int inhibit_exec = 1;
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/* debug = 1 if -g passed. */
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static int debug = 0;
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/* By default prefer to link with shareable image libraries.
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Override with -static. */
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static int staticp = 0;
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/* By default generate an executable, not a shareable image library.
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Override with -shared. */
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static int share = 0;
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/* Remember if IDENTIFICATION given on command line. */
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static int ident = 0;
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/* Keep track of arg translations. */
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static int link_arg_max = -1;
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static const char **link_args = 0;
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static int link_arg_index = -1;
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/* Keep track of filenames */
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static char optfilefullname [267];
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static char *sharefilename = 0;
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static char *exefilename = 0;
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/* System search dir list. Leave blank since link handles this
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internally. */
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static char *system_search_dirs = "";
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/* Search dir list passed on command line (with -L). */
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static char *search_dirs;
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/* Local function declarations. */
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/* Add STR to the list of arguments to pass to the linker. Expand the list as
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necessary to accommodate. */
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static void addarg PARAMS ((const char *));
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/* Check to see if NAME is a regular file, i.e. not a directory */
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static int is_regular_file PARAMS ((char *));
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/* Translate a Unix syntax file specification FILESPEC into VMS syntax.
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If indicators of VMS syntax found, return input string. */
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static char *to_host_file_spec PARAMS ((char *));
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/* Locate the library named LIB_NAME in the set of paths PATH_VAL. */
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static char *locate_lib PARAMS ((char *, char *));
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/* Given a library name NAME, i.e. foo, Look for libfoo.lib and then
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libfoo.a in the set of directories we are allowed to search in. */
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static const char *expand_lib PARAMS ((char *));
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/* Preprocess the number of args P_ARGC in ARGV.
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Look for special flags, etc. that must be handled first. */
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static void preprocess_args PARAMS ((int *, char **));
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/* Preprocess the number of args P_ARGC in ARGV. Look for
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special flags, etc. that must be handled for the VMS linker. */
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static void process_args PARAMS ((int *, char **));
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/* Action routine called by decc$to_vms. NAME is a file name or
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directory name. TYPE is unused. */
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static int translate_unix PARAMS ((char *, int));
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int main PARAMS ((int, char **));
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static void
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addarg (str)
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const char *str;
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{
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int i;
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if (++link_arg_index >= link_arg_max)
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{
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const char **new_link_args
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= (const char **) xcalloc (link_arg_max + 1000, sizeof (char *));
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for (i = 0; i <= link_arg_max; i++)
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new_link_args [i] = link_args [i];
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if (link_args)
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free (link_args);
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link_arg_max += 1000;
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link_args = new_link_args;
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}
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link_args [link_arg_index] = str;
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}
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static char *
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locate_lib (lib_name, path_val)
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char *lib_name;
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char *path_val;
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{
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int lib_len = strlen (lib_name);
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char *eptr, *sptr;
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for (sptr = path_val; *sptr; sptr = eptr)
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{
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char *buf, *ptr;
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while (*sptr == PATH_SEPARATOR)
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sptr ++;
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eptr = strchr (sptr, PATH_SEPARATOR);
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if (eptr == 0)
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eptr = strchr (sptr, 0);
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buf = alloca ((eptr-sptr) + lib_len + 4 + 2);
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strncpy (buf, sptr, eptr-sptr);
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buf [eptr-sptr] = 0;
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strcat (buf, "/");
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strcat (buf, lib_name);
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ptr = strchr (buf, 0);
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if (debug || staticp)
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{
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/* For debug or static links, look for shareable image libraries
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last. */
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strcpy (ptr, ".a");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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strcpy (ptr, ".olb");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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strcpy (ptr, ".exe");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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}
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else
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{
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/* Otherwise look for shareable image libraries first. */
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strcpy (ptr, ".exe");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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strcpy (ptr, ".a");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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strcpy (ptr, ".olb");
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if (is_regular_file (buf))
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return xstrdup (to_host_file_spec (buf));
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}
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}
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return 0;
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}
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static const char *
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expand_lib (name)
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char *name;
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{
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char *lib, *lib_path;
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if (strcmp (name, "c") == 0)
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/* IEEE VAX C compatible library for non-prefixed (e.g. no DECC$)
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C RTL functions. */
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return "sys$library:vaxcrtltx.olb";
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else if (strcmp (name, "m") == 0)
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/* No separate library for math functions */
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return "";
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else
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{
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lib = xmalloc (strlen (name) + 14);
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strcpy (lib, "lib");
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strcat (lib, name);
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lib_path = locate_lib (lib, search_dirs);
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if (lib_path)
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return lib_path;
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}
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fprintf (stderr,
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"Couldn't locate library: lib%s.exe, lib%s.a or lib%s.olb\n",
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name, name, name);
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exit (1);
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}
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static int
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is_regular_file (name)
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char *name;
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{
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int ret;
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struct stat statbuf;
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ret = stat (name, &statbuf);
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return !ret && S_ISREG (statbuf.st_mode);
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}
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static void
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preprocess_args (p_argc, argv)
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int *p_argc;
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char **argv;
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{
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int i;
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for (i = 1; i < *p_argc; i++)
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if (strlen (argv[i]) >= 6 && strncmp (argv[i], "-shared", 7) == 0)
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share = 1;
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for (i = 1; i < *p_argc; i++)
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if (strcmp (argv[i], "-o") == 0)
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{
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char *buff, *ptr;
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int out_len;
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int len;
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i++;
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ptr = to_host_file_spec (argv[i]);
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exefilename = xstrdup (ptr);
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out_len = strlen (ptr);
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buff = xmalloc (out_len + 18);
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if (share)
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strcpy (buff, "/share=");
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else
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strcpy (buff, "/exe=");
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strcat (buff, ptr);
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addarg (buff);
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if (share)
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{
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sharefilename = xmalloc (out_len+5);
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if (ptr == strchr (argv[i], ']'))
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strcpy (sharefilename, ++ptr);
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else if (ptr == strchr (argv[i], ':'))
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strcpy (sharefilename, ++ptr);
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else if (ptr == strrchr (argv[i], '/'))
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strcpy (sharefilename, ++ptr);
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else
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strcpy (sharefilename, argv[i]);
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len = strlen (sharefilename);
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if (strncasecmp (&sharefilename[len-4], ".exe", 4) == 0)
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sharefilename[len-4] = 0;
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for (ptr = sharefilename; *ptr; ptr++)
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*ptr = TOUPPER (*ptr);
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}
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}
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}
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static void
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process_args (p_argc, argv)
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int *p_argc;
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char **argv;
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{
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int i;
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for (i = 1; i < *p_argc; i++)
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{
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if (strlen (argv[i]) < 2)
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continue;
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if (strncmp (argv[i], "-L", 2) == 0)
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{
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char *nbuff, *ptr;
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int new_len, search_dirs_len;
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ptr = &argv[i][2];
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new_len = strlen (ptr);
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search_dirs_len = strlen (search_dirs);
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nbuff = xmalloc (new_len + 1);
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strcpy (nbuff, ptr);
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/* Remove trailing slashes. */
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while (new_len > 1 && nbuff [new_len - 1] == '/')
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{
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nbuff [new_len - 1] = 0;
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new_len--;
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}
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search_dirs = xrealloc (search_dirs, search_dirs_len + new_len + 2);
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if (search_dirs_len > 0)
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strcat (search_dirs, PATH_SEPARATOR_STR);
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strcat (search_dirs, nbuff);
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free (nbuff);
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}
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/* -v turns on verbose option here and is passed on to gcc. */
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else if (strcmp (argv[i], "-v") == 0)
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verbose = 1;
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else if (strcmp (argv[i], "-g0") == 0)
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addarg ("/notraceback");
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else if (strncmp (argv[i], "-g", 2) == 0)
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{
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addarg ("/debug");
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debug = 1;
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}
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else if (strcmp (argv[i], "-static") == 0)
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staticp = 1;
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else if (strcmp (argv[i], "-map") == 0)
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{
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char *buff, *ptr;
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buff = xmalloc (strlen (exefilename) + 5);
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strcpy (buff, exefilename);
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ptr = strchr (buff, '.');
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if (ptr)
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*ptr = 0;
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strcat (buff, ".map");
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addarg ("/map=");
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addarg (buff);
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addarg ("/full");
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}
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else if (strcmp (argv[i], "-save-temps") == 0)
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save_temps = 1;
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else if (strcmp (argv[i], "--noinhibit-exec") == 0)
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inhibit_exec = 0;
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}
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}
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/* The main program. Spawn the VMS linker after fixing up the Unix-like flags
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and args to be what the VMS linker wants. */
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int
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main (argc, argv)
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int argc;
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char **argv;
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{
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int i;
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char cwdev [128], *devptr;
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int devlen;
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int optfd;
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FILE *optfile;
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char *cwd = getcwd (0, 1024);
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char *optfilename;
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devptr = strchr (cwd, ':');
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devlen = (devptr - cwd) + 1;
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strncpy (cwdev, cwd, devlen);
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cwdev [devlen] = '\0';
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search_dirs = xmalloc (strlen (system_search_dirs) + 1);
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strcpy (search_dirs, system_search_dirs);
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addarg ("link");
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/* Pass to find args that have to be append first. */
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preprocess_args (&argc , argv);
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/* Pass to find the rest of the args. */
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process_args (&argc , argv);
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/* Create a temp file to hold args, otherwise we can easily exceed the VMS
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command line length limits. */
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optfilename = alloca (strlen ("LDXXXXXX") + 1);
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strcpy (optfilename, "LDXXXXXX");
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optfd = mkstemp (optfilename);
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getcwd (optfilefullname, 256, 1); /* VMS style cwd. */
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strcat (optfilefullname, optfilename);
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strcat (optfilefullname, ".");
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optfile = fdopen (optfd, "w");
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/* Write out the IDENTIFICATION argument first so that it can be overridden
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by an options file. */
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for (i = 1; i < argc; i++)
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{
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int arg_len = strlen (argv[i]);
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if (arg_len > 6 && strncasecmp (argv[i], "IDENT=", 6) == 0)
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{
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/* Comes from command line. If present will always appear before
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IDENTIFICATION=... and will override. */
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if (!ident)
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ident = 1;
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}
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else if (arg_len > 15
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&& strncasecmp (argv[i], "IDENTIFICATION=", 15) == 0)
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{
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/* Comes from pragma Ident (). */
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if (!ident)
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{
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fprintf (optfile, "case_sensitive=yes\n");
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fprintf (optfile, "IDENTIFICATION=\"%15.15s\"\n", &argv[i][15]);
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fprintf (optfile, "case_sensitive=NO\n");
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ident = 1;
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}
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}
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}
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for (i = 1; i < argc; i++)
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{
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int arg_len = strlen (argv[i]);
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if (strcmp (argv[i], "-o") == 0)
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i++;
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else if (arg_len > 2 && strncmp (argv[i], "-l", 2) == 0)
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{
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const char *libname = expand_lib (&argv[i][2]);
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const char *ext;
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int len;
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if ((len = strlen (libname)) > 0)
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{
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char buff [256];
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if (len > 4 && strcasecmp (&libname [len-4], ".exe") == 0)
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ext = "/shareable";
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else
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ext = "/library";
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if (libname[0] == '[')
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sprintf (buff, "%s%s", cwdev, libname);
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else
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sprintf (buff, "%s", libname);
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fprintf (optfile, "%s%s\n", buff, ext);
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}
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}
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else if (strcmp (argv[i], "-v" ) == 0
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|| strncmp (argv[i], "-g", 2 ) == 0
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|| strcmp (argv[i], "-static" ) == 0
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|| strcmp (argv[i], "-map" ) == 0
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|| strcmp (argv[i], "-save-temps") == 0
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|| strcmp (argv[i], "--noinhibit-exec") == 0
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|| (arg_len > 2 && strncmp (argv[i], "-L", 2) == 0)
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|| (arg_len >= 6 && strncmp (argv[i], "-share", 6) == 0))
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;
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else if (arg_len > 1 && argv[i][0] == '@')
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{
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FILE *atfile;
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char *ptr, *ptr1;
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struct stat statbuf;
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char *buff;
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int len;
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if (stat (&argv[i][1], &statbuf))
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{
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fprintf (stderr, "Couldn't open linker response file: %s\n",
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&argv[i][1]);
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exit (1);
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}
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buff = xmalloc (statbuf.st_size + 1);
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atfile = fopen (&argv[i][1], "r");
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fgets (buff, statbuf.st_size + 1, atfile);
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fclose (atfile);
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len = strlen (buff);
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if (buff [len - 1] == '\n')
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{
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buff [len - 1] = 0;
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len--;
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}
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ptr = buff;
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do
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{
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ptr1 = strchr (ptr, ' ');
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if (ptr1)
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*ptr1 = 0;
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ptr = to_host_file_spec (ptr);
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if (ptr[0] == '[')
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fprintf (optfile, "%s%s\n", cwdev, ptr);
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else
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fprintf (optfile, "%s\n", ptr);
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ptr = ptr1 + 1;
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} while (ptr1);
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}
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/* Unix style file specs and VMS style switches look alike, so assume an
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arg consisting of one and only one slash, and that being first, is
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really a switch. */
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else if ((argv[i][0] == '/') && (strchr (&argv[i][1], '/') == 0))
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addarg (argv[i]);
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else if (arg_len > 4
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&& strncasecmp (&argv[i][arg_len-4], ".OPT", 4) == 0)
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{
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FILE *optfile1;
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char buff [256];
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optfile1 = fopen (argv[i], "r");
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while (fgets (buff, 256, optfile1))
|
||
fputs (buff, optfile);
|
||
|
||
fclose (optfile1);
|
||
}
|
||
else if (arg_len > 7 && strncasecmp (argv[i], "GSMATCH", 7) == 0)
|
||
fprintf (optfile, "%s\n", argv[i]);
|
||
else if (arg_len > 6 && strncasecmp (argv[i], "IDENT=", 6) == 0)
|
||
{
|
||
/* Comes from command line and will override pragma. */
|
||
fprintf (optfile, "case_sensitive=yes\n");
|
||
fprintf (optfile, "IDENT=\"%15.15s\"\n", &argv[i][6]);
|
||
fprintf (optfile, "case_sensitive=NO\n");
|
||
ident = 1;
|
||
}
|
||
else if (arg_len > 15
|
||
&& strncasecmp (argv[i], "IDENTIFICATION=", 15) == 0)
|
||
;
|
||
else
|
||
{
|
||
/* Assume filename arg. */
|
||
const char *addswitch = "";
|
||
char buff [256];
|
||
int buff_len;
|
||
int is_cld = 0;
|
||
|
||
argv[i] = to_host_file_spec (argv[i]);
|
||
arg_len = strlen (argv[i]);
|
||
|
||
if (arg_len > 4 && strcasecmp (&argv[i][arg_len-4], ".exe") == 0)
|
||
addswitch = "/shareable";
|
||
|
||
if (arg_len > 4 && strcasecmp (&argv[i][arg_len-4], ".cld") == 0)
|
||
{
|
||
addswitch = "/shareable";
|
||
is_cld = 1;
|
||
}
|
||
|
||
if (arg_len > 2 && strcasecmp (&argv[i][arg_len-2], ".a") == 0)
|
||
addswitch = "/lib";
|
||
|
||
if (arg_len > 4 && strcasecmp (&argv[i][arg_len-4], ".olb") == 0)
|
||
addswitch = "/lib";
|
||
|
||
if (argv[i][0] == '[')
|
||
sprintf (buff, "%s%s%s\n", cwdev, argv[i], addswitch);
|
||
else if (strchr (argv[i], ':'))
|
||
sprintf (buff, "%s%s\n", argv[i], addswitch);
|
||
else
|
||
sprintf (buff, "%s%s%s\n", cwd, argv[i], addswitch);
|
||
|
||
buff_len = strlen (buff);
|
||
|
||
if (buff_len >= 15
|
||
&& strcasecmp (&buff[buff_len - 15], "vms-dwarf2eh.o\n") == 0)
|
||
vmsdwarf2ehspec = xstrdup (buff);
|
||
else if (buff_len >= 13
|
||
&& strcasecmp (&buff[buff_len - 13],"vms-dwarf2.o\n") == 0)
|
||
vmsdwarf2spec = xstrdup (buff);
|
||
else if (is_cld)
|
||
{
|
||
addarg (buff);
|
||
addarg (",");
|
||
}
|
||
else
|
||
fprintf (optfile, buff);
|
||
}
|
||
}
|
||
|
||
#if 0
|
||
if (share)
|
||
fprintf (optfile, "symbol_vector=(main=procedure)\n");
|
||
#endif
|
||
|
||
if (vmsdwarf2ehspec)
|
||
{
|
||
fprintf (optfile, "case_sensitive=yes\n");
|
||
fprintf (optfile, "cluster=DWARF2eh,,,%s", vmsdwarf2ehspec);
|
||
fprintf (optfile, "collect=DWARF2eh,eh_frame\n");
|
||
fprintf (optfile, "case_sensitive=NO\n");
|
||
}
|
||
|
||
if (debug && vmsdwarf2spec)
|
||
{
|
||
fprintf (optfile, "case_sensitive=yes\n");
|
||
fprintf (optfile, "cluster=DWARF2debug,,,%s", vmsdwarf2spec);
|
||
fprintf (optfile, "collect=DWARF2debug,debug_abbrev,debug_aranges,-\n");
|
||
fprintf (optfile, " debug_frame,debug_info,debug_line,debug_loc,-\n");
|
||
fprintf (optfile, " debug_macinfo,debug_pubnames,debug_str,-\n");
|
||
fprintf (optfile, " debug_zzzzzz\n");
|
||
fprintf (optfile, "case_sensitive=NO\n");
|
||
}
|
||
|
||
if (debug && share)
|
||
{
|
||
fprintf (optfile, "case_sensitive=yes\n");
|
||
fprintf (optfile, "symbol_vector=(-\n");
|
||
fprintf (optfile,
|
||
"%s$DWARF2.DEBUG_ABBREV/$dwarf2.debug_abbrev=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile,
|
||
"%s$DWARF2.DEBUG_ARANGES/$dwarf2.debug_aranges=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_FRAME/$dwarf2.debug_frame=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_INFO/$dwarf2.debug_info=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_LINE/$dwarf2.debug_line=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_LOC/$dwarf2.debug_loc=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile,
|
||
"%s$DWARF2.DEBUG_MACINFO/$dwarf2.debug_macinfo=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile,
|
||
"%s$DWARF2.DEBUG_PUBNAMES/$dwarf2.debug_pubnames=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_STR/$dwarf2.debug_str=DATA,-\n",
|
||
sharefilename);
|
||
fprintf (optfile, "%s$DWARF2.DEBUG_ZZZZZZ/$dwarf2.debug_zzzzzz=DATA)\n",
|
||
sharefilename);
|
||
fprintf (optfile, "case_sensitive=NO\n");
|
||
}
|
||
|
||
fclose (optfile);
|
||
addarg (optfilefullname);
|
||
addarg ("/opt");
|
||
|
||
addarg (NULL);
|
||
|
||
if (verbose)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < link_arg_index; i++)
|
||
printf ("%s ", link_args [i]);
|
||
putchar ('\n');
|
||
}
|
||
|
||
{
|
||
int i;
|
||
int len = 0;
|
||
|
||
for (i = 0; link_args[i]; i++)
|
||
len = len + strlen (link_args[i]) + 1;
|
||
|
||
{
|
||
char *allargs = (char *) alloca (len + 1);
|
||
Descr cmd;
|
||
int status;
|
||
int status1 = 1;
|
||
|
||
for (i = 0; i < len + 1; i++)
|
||
allargs [i] = 0;
|
||
|
||
for (i = 0; link_args [i]; i++)
|
||
{
|
||
strcat (allargs, link_args [i]);
|
||
strcat (allargs, " ");
|
||
}
|
||
|
||
cmd.adr = allargs;
|
||
cmd.len = len;
|
||
cmd.mbz = 0;
|
||
|
||
i = LIB$SPAWN (&cmd, 0, 0, 0, 0, 0, &status);
|
||
if ((i & 1) != 1)
|
||
{
|
||
LIB$SIGNAL (i);
|
||
exit (1);
|
||
}
|
||
|
||
if (debug && !share)
|
||
{
|
||
strcpy (allargs, "@gnu:[bin]set_exe ");
|
||
strcat (allargs, exefilename);
|
||
strcat (allargs, " /nodebug /silent");
|
||
len = strlen (allargs);
|
||
cmd.adr = allargs;
|
||
cmd.len = len;
|
||
cmd.mbz = 0;
|
||
|
||
if (verbose)
|
||
printf (allargs);
|
||
|
||
i = LIB$SPAWN (&cmd, 0, 0, 0, 0, 0, &status1);
|
||
|
||
if ((i & 1) != 1)
|
||
{
|
||
LIB$SIGNAL (i);
|
||
exit (1);
|
||
}
|
||
}
|
||
|
||
if (!save_temps)
|
||
remove (optfilefullname);
|
||
|
||
if ((status & 1) == 1 && (status1 & 1) == 1)
|
||
exit (0);
|
||
|
||
if (exefilename && inhibit_exec == 1)
|
||
remove (exefilename);
|
||
|
||
exit (1);
|
||
}
|
||
}
|
||
}
|
||
|
||
static char new_host_filespec [255];
|
||
static char filename_buff [256];
|
||
|
||
static int
|
||
translate_unix (name, type)
|
||
char *name;
|
||
int type ATTRIBUTE_UNUSED;
|
||
{
|
||
strcpy (filename_buff, name);
|
||
return 0;
|
||
}
|
||
|
||
static char *
|
||
to_host_file_spec (filespec)
|
||
char *filespec;
|
||
{
|
||
strcpy (new_host_filespec, "");
|
||
if (strchr (filespec, ']') || strchr (filespec, ':'))
|
||
strcpy (new_host_filespec, filespec);
|
||
else
|
||
{
|
||
decc$to_vms (filespec, translate_unix, 1, 1);
|
||
strcpy (new_host_filespec, filename_buff);
|
||
}
|
||
|
||
return new_host_filespec;
|
||
}
|