freebsd-dev/contrib/gcc/config/alpha/vms-ld.c
2004-07-28 03:11:36 +00:00

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/* VMS linker wrapper.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Contributed by Douglas B. Rupp (rupp@gnat.com).
This file is part of GCC.
GCC 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.
GCC 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 GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This program is a wrapper around the VMS linker.
It translates Unix style command line options into corresponding
VMS style qualifiers and then spawns the VMS linker. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
typedef struct dsc {unsigned short len, mbz; char *adr; } Descr;
#undef PATH_SEPARATOR
#undef PATH_SEPARATOR_STR
#define PATH_SEPARATOR ','
#define PATH_SEPARATOR_STR ","
/* Local variable declarations. */
/* File specification for vms-dwarf2.o. */
static char *vmsdwarf2spec = 0;
/* File specification for vms-dwarf2eh.o. */
static char *vmsdwarf2ehspec = 0;
/* verbose = 1 if -v passed. */
static int verbose = 0;
/* save_temps = 1 if -save-temps passed. */
static int save_temps = 0;
/* By default don't generate executable file if there are errors
in the link. Override with --noinhibit-exec. */
static int inhibit_exec = 1;
/* debug = 1 if -g passed. */
static int debug = 0;
/* By default prefer to link with shareable image libraries.
Override with -static. */
static int staticp = 0;
/* By default generate an executable, not a shareable image library.
Override with -shared. */
static int share = 0;
/* Remember if IDENTIFICATION given on command line. */
static int ident = 0;
/* Keep track of arg translations. */
static int link_arg_max = -1;
static const char **link_args = 0;
static int link_arg_index = -1;
/* Keep track of filenames */
static char optfilefullname [267];
static char *sharefilename = 0;
static char *exefilename = 0;
/* System search dir list. Leave blank since link handles this
internally. */
static char *system_search_dirs = "";
/* Search dir list passed on command line (with -L). */
static char *search_dirs;
/* Local function declarations. */
/* Add STR to the list of arguments to pass to the linker. Expand the list as
necessary to accommodate. */
static void addarg (const char *);
/* Check to see if NAME is a regular file, i.e. not a directory */
static int is_regular_file (char *);
/* Translate a Unix syntax file specification FILESPEC into VMS syntax.
If indicators of VMS syntax found, return input string. */
static char *to_host_file_spec (char *);
/* Locate the library named LIB_NAME in the set of paths PATH_VAL. */
static char *locate_lib (char *, char *);
/* Given a library name NAME, i.e. foo, Look for libfoo.lib and then
libfoo.a in the set of directories we are allowed to search in. */
static const char *expand_lib (char *);
/* Preprocess the number of args P_ARGC in ARGV.
Look for special flags, etc. that must be handled first. */
static void preprocess_args (int *, char **);
/* Preprocess the number of args P_ARGC in ARGV. Look for
special flags, etc. that must be handled for the VMS linker. */
static void process_args (int *, char **);
/* Action routine called by decc$to_vms. NAME is a file name or
directory name. TYPE is unused. */
static int translate_unix (char *, int);
int main (int, char **);
static void
addarg (const char *str)
{
int i;
if (++link_arg_index >= link_arg_max)
{
const char **new_link_args
= (const char **) xcalloc (link_arg_max + 1000, sizeof (char *));
for (i = 0; i <= link_arg_max; i++)
new_link_args [i] = link_args [i];
if (link_args)
free (link_args);
link_arg_max += 1000;
link_args = new_link_args;
}
link_args [link_arg_index] = str;
}
static char *
locate_lib (char *lib_name, char *path_val)
{
int lib_len = strlen (lib_name);
char *eptr, *sptr;
for (sptr = path_val; *sptr; sptr = eptr)
{
char *buf, *ptr;
while (*sptr == PATH_SEPARATOR)
sptr ++;
eptr = strchr (sptr, PATH_SEPARATOR);
if (eptr == 0)
eptr = strchr (sptr, 0);
buf = alloca ((eptr-sptr) + lib_len + 4 + 2);
strncpy (buf, sptr, eptr-sptr);
buf [eptr-sptr] = 0;
strcat (buf, "/");
strcat (buf, lib_name);
ptr = strchr (buf, 0);
if (debug || staticp)
{
/* For debug or static links, look for shareable image libraries
last. */
strcpy (ptr, ".a");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
strcpy (ptr, ".olb");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
strcpy (ptr, ".exe");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
}
else
{
/* Otherwise look for shareable image libraries first. */
strcpy (ptr, ".exe");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
strcpy (ptr, ".a");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
strcpy (ptr, ".olb");
if (is_regular_file (buf))
return xstrdup (to_host_file_spec (buf));
}
}
return 0;
}
static const char *
expand_lib (char *name)
{
char *lib, *lib_path;
if (strcmp (name, "c") == 0)
/* IEEE VAX C compatible library for non-prefixed (e.g. no DECC$)
C RTL functions. */
return "sys$library:vaxcrtltx.olb";
else if (strcmp (name, "m") == 0)
/* No separate library for math functions */
return "";
else
{
lib = xmalloc (strlen (name) + 14);
strcpy (lib, "lib");
strcat (lib, name);
lib_path = locate_lib (lib, search_dirs);
if (lib_path)
return lib_path;
}
fprintf (stderr,
"Couldn't locate library: lib%s.exe, lib%s.a or lib%s.olb\n",
name, name, name);
exit (1);
}
static int
is_regular_file (char *name)
{
int ret;
struct stat statbuf;
ret = stat (name, &statbuf);
return !ret && S_ISREG (statbuf.st_mode);
}
static void
preprocess_args (int *p_argc, char **argv)
{
int i;
for (i = 1; i < *p_argc; i++)
if (strlen (argv[i]) >= 6 && strncmp (argv[i], "-shared", 7) == 0)
share = 1;
for (i = 1; i < *p_argc; i++)
if (strcmp (argv[i], "-o") == 0)
{
char *buff, *ptr;
int out_len;
int len;
i++;
ptr = to_host_file_spec (argv[i]);
exefilename = xstrdup (ptr);
out_len = strlen (ptr);
buff = xmalloc (out_len + 18);
if (share)
strcpy (buff, "/share=");
else
strcpy (buff, "/exe=");
strcat (buff, ptr);
addarg (buff);
if (share)
{
sharefilename = xmalloc (out_len+5);
if (ptr == strchr (argv[i], ']'))
strcpy (sharefilename, ++ptr);
else if (ptr == strchr (argv[i], ':'))
strcpy (sharefilename, ++ptr);
else if (ptr == strrchr (argv[i], '/'))
strcpy (sharefilename, ++ptr);
else
strcpy (sharefilename, argv[i]);
len = strlen (sharefilename);
if (strncasecmp (&sharefilename[len-4], ".exe", 4) == 0)
sharefilename[len-4] = 0;
for (ptr = sharefilename; *ptr; ptr++)
*ptr = TOUPPER (*ptr);
}
}
}
static void
process_args (int *p_argc, char **argv)
{
int i;
for (i = 1; i < *p_argc; i++)
{
if (strlen (argv[i]) < 2)
continue;
if (strncmp (argv[i], "-L", 2) == 0)
{
char *nbuff, *ptr;
int new_len, search_dirs_len;
ptr = &argv[i][2];
new_len = strlen (ptr);
search_dirs_len = strlen (search_dirs);
nbuff = xmalloc (new_len + 1);
strcpy (nbuff, ptr);
/* Remove trailing slashes. */
while (new_len > 1 && nbuff [new_len - 1] == '/')
{
nbuff [new_len - 1] = 0;
new_len--;
}
search_dirs = xrealloc (search_dirs, search_dirs_len + new_len + 2);
if (search_dirs_len > 0)
strcat (search_dirs, PATH_SEPARATOR_STR);
strcat (search_dirs, nbuff);
free (nbuff);
}
/* -v turns on verbose option here and is passed on to gcc. */
else if (strcmp (argv[i], "-v") == 0)
verbose = 1;
else if (strcmp (argv[i], "-g0") == 0)
addarg ("/notraceback");
else if (strncmp (argv[i], "-g", 2) == 0)
{
addarg ("/debug");
debug = 1;
}
else if (strcmp (argv[i], "-static") == 0)
staticp = 1;
else if (strcmp (argv[i], "-map") == 0)
{
char *buff, *ptr;
buff = xmalloc (strlen (exefilename) + 5);
strcpy (buff, exefilename);
ptr = strchr (buff, '.');
if (ptr)
*ptr = 0;
strcat (buff, ".map");
addarg ("/map=");
addarg (buff);
addarg ("/full");
}
else if (strcmp (argv[i], "-save-temps") == 0)
save_temps = 1;
else if (strcmp (argv[i], "--noinhibit-exec") == 0)
inhibit_exec = 0;
}
}
/* The main program. Spawn the VMS linker after fixing up the Unix-like flags
and args to be what the VMS linker wants. */
int
main (int argc, char **argv)
{
int i;
char cwdev [128], *devptr;
int devlen;
int optfd;
FILE *optfile;
char *cwd = getcwd (0, 1024);
char *optfilename;
devptr = strchr (cwd, ':');
devlen = (devptr - cwd) + 1;
strncpy (cwdev, cwd, devlen);
cwdev [devlen] = '\0';
search_dirs = xstrdup (system_search_dirs);
addarg ("link");
/* Pass to find args that have to be append first. */
preprocess_args (&argc , argv);
/* Pass to find the rest of the args. */
process_args (&argc , argv);
/* Create a temp file to hold args, otherwise we can easily exceed the VMS
command line length limits. */
optfilename = alloca (strlen ("LDXXXXXX") + 1);
strcpy (optfilename, "LDXXXXXX");
optfd = mkstemp (optfilename);
getcwd (optfilefullname, 256, 1); /* VMS style cwd. */
strcat (optfilefullname, optfilename);
strcat (optfilefullname, ".");
optfile = fdopen (optfd, "w");
/* Write out the IDENTIFICATION argument first so that it can be overridden
by an options file. */
for (i = 1; i < argc; i++)
{
int arg_len = strlen (argv[i]);
if (arg_len > 6 && strncasecmp (argv[i], "IDENT=", 6) == 0)
{
/* Comes from command line. If present will always appear before
IDENTIFICATION=... and will override. */
if (!ident)
ident = 1;
}
else if (arg_len > 15
&& strncasecmp (argv[i], "IDENTIFICATION=", 15) == 0)
{
/* Comes from pragma Ident (). */
if (!ident)
{
fprintf (optfile, "case_sensitive=yes\n");
fprintf (optfile, "IDENTIFICATION=\"%15.15s\"\n", &argv[i][15]);
fprintf (optfile, "case_sensitive=NO\n");
ident = 1;
}
}
}
for (i = 1; i < argc; i++)
{
int arg_len = strlen (argv[i]);
if (strcmp (argv[i], "-o") == 0)
i++;
else if (arg_len > 2 && strncmp (argv[i], "-l", 2) == 0)
{
const char *libname = expand_lib (&argv[i][2]);
const char *ext;
int len;
if ((len = strlen (libname)) > 0)
{
char buff [256];
if (len > 4 && strcasecmp (&libname [len-4], ".exe") == 0)
ext = "/shareable";
else
ext = "/library";
if (libname[0] == '[')
sprintf (buff, "%s%s", cwdev, libname);
else
sprintf (buff, "%s", libname);
fprintf (optfile, "%s%s\n", buff, ext);
}
}
else if (strcmp (argv[i], "-v" ) == 0
|| strncmp (argv[i], "-g", 2 ) == 0
|| strcmp (argv[i], "-static" ) == 0
|| strcmp (argv[i], "-map" ) == 0
|| strcmp (argv[i], "-save-temps") == 0
|| strcmp (argv[i], "--noinhibit-exec") == 0
|| (arg_len > 2 && strncmp (argv[i], "-L", 2) == 0)
|| (arg_len >= 6 && strncmp (argv[i], "-share", 6) == 0))
;
else if (arg_len > 1 && argv[i][0] == '@')
{
FILE *atfile;
char *ptr, *ptr1;
struct stat statbuf;
char *buff;
int len;
if (stat (&argv[i][1], &statbuf))
{
fprintf (stderr, "Couldn't open linker response file: %s\n",
&argv[i][1]);
exit (1);
}
buff = xmalloc (statbuf.st_size + 1);
atfile = fopen (&argv[i][1], "r");
fgets (buff, statbuf.st_size + 1, atfile);
fclose (atfile);
len = strlen (buff);
if (buff [len - 1] == '\n')
{
buff [len - 1] = 0;
len--;
}
ptr = buff;
do
{
ptr1 = strchr (ptr, ' ');
if (ptr1)
*ptr1 = 0;
ptr = to_host_file_spec (ptr);
if (ptr[0] == '[')
fprintf (optfile, "%s%s\n", cwdev, ptr);
else
fprintf (optfile, "%s\n", ptr);
ptr = ptr1 + 1;
} while (ptr1);
}
/* Unix style file specs and VMS style switches look alike, so assume an
arg consisting of one and only one slash, and that being first, is
really a switch. */
else if ((argv[i][0] == '/') && (strchr (&argv[i][1], '/') == 0))
addarg (argv[i]);
else if (arg_len > 4
&& strncasecmp (&argv[i][arg_len-4], ".OPT", 4) == 0)
{
FILE *optfile1;
char buff [256];
optfile1 = fopen (argv[i], "r");
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$SIGNAL (i);
exit (1);
}
}
if (!save_temps)
remove (optfilefullname);
if ((status & 1) == 1 && (status1 & 1) == 1)
exit (0);
if (exefilename && inhibit_exec == 1)
remove (exefilename);
exit (1);
}
}
}
static char new_host_filespec [255];
static char filename_buff [256];
static int
translate_unix (char *name, int type ATTRIBUTE_UNUSED)
{
strcpy (filename_buff, name);
return 0;
}
static char *
to_host_file_spec (char *filespec)
{
strcpy (new_host_filespec, "");
if (strchr (filespec, ']') || strchr (filespec, ':'))
strcpy (new_host_filespec, filespec);
else
{
decc$to_vms (filespec, translate_unix, 1, 1);
strcpy (new_host_filespec, filename_buff);
}
return new_host_filespec;
}