/* Collect static initialization info into data structures that can be
traversed by C++ initialization and finalization routines.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
Contributed by Chris Smith (csmith@convex.com).
Heavily modified by Michael Meissner (meissner@cygnus.com),
Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
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
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* Build tables of static constructors and destructors and run ld. */
# define SIGCHLD SIGCLD
#endif
-#ifdef vfork /* Autoconf may define this to fork for us. */
-# define VFORK_STRING "fork"
-#else
-# define VFORK_STRING "vfork"
-#endif
-#ifdef HAVE_VFORK_H
-#include <vfork.h>
-#endif
-#ifdef VMS
-#define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \
- lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1)
-#endif /* VMS */
-
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
the utilities are not correct for a cross-compiler; we have to hope that
cross-versions are in the proper directories. */
-#ifdef CROSS_COMPILE
-#undef SUNOS4_SHARED_LIBRARIES
+#ifdef CROSS_DIRECTORY_STRUCTURE
#undef OBJECT_FORMAT_COFF
#undef MD_EXEC_PREFIX
#undef REAL_LD_FILE_NAME
fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC))
#endif
-#if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES
+#ifdef LDD_SUFFIX
#define SCAN_LIBRARIES
#endif
int do_collecting = 0;
#endif
-#ifndef COLLECT_PARSE_FLAG
-#define COLLECT_PARSE_FLAG(FLAG)
-#endif
-
/* Nonzero if we should suppress the automatic demangling of identifiers
in linker error messages. Set from COLLECT_NO_DEMANGLE. */
int no_demangle;
enum pass {
PASS_FIRST, /* without constructors */
PASS_OBJ, /* individual objects */
- PASS_LIB, /* looking for shared libraries */
+ PASS_LIB, /* looking for shared libraries */
PASS_SECOND /* with constructors linked in */
};
int vflag; /* true if -v */
static int rflag; /* true if -r */
static int strip_flag; /* true if -s */
+static const char *demangle_flag;
#ifdef COLLECT_EXPORT_LIST
static int export_flag; /* true if -bE */
static int aix64_flag; /* true if -b64 */
+static int aixrtl_flag; /* true if -brtl */
#endif
int debug; /* true if -debug */
-static int shared_obj; /* true if -shared */
+static int shared_obj; /* true if -shared */
static const char *c_file; /* <xxx>.c for constructor/destructor list. */
static const char *o_file; /* <xxx>.o for constructor/destructor list. */
#ifdef COLLECT_EXPORT_LIST
-static const char *export_file; /* <xxx>.x for AIX export list. */
+static const char *export_file; /* <xxx>.x for AIX export list. */
#endif
-const char *ldout; /* File for ld errors. */
+const char *ldout; /* File for ld stdout. */
+const char *lderrout; /* File for ld stderr. */
static const char *output_file; /* Output file for ld. */
static const char *nm_file_name; /* pathname of nm */
#ifdef LDD_SUFFIX
static const char *ldd_file_name; /* pathname of ldd (or equivalent) */
#endif
static const char *strip_file_name; /* pathname of strip */
-const char *c_file_name; /* pathname of gcc */
+const char *c_file_name; /* pathname of gcc */
static char *initname, *fininame; /* names of init and fini funcs */
static struct head constructors; /* list of constructors found */
#endif
static struct head frame_tables; /* list of frame unwind info tables */
+static bool at_file_supplied; /* Whether to use @file arguments */
+static char *response_file; /* Name of any current response file */
+
struct obstack temporary_obstack;
char * temporary_firstobj;
-/* Holds the return value of pexecute and fork. */
-int pid;
-
/* Structure to hold all the directories in which to search for files to
execute. */
static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */
static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs,
&libpath_lib_dirs, NULL};
-static const char *const libexts[3] = {"a", "so", NULL}; /* possible library extensions */
#endif
static void handler (int);
static void add_prefix (struct path_prefix *, const char *);
static void prefix_from_env (const char *, struct path_prefix *);
static void prefix_from_string (const char *, struct path_prefix *);
-static void do_wait (const char *);
+static void do_wait (const char *, struct pex_obj *);
static void fork_execute (const char *, char **);
static void maybe_unlink (const char *);
static void add_to_list (struct head *, const char *);
#endif
static char *extract_string (const char **);
\f
-#ifndef HAVE_DUP2
-static int
-dup2 (int oldfd, int newfd)
-{
- int fdtmp[256];
- int fdx = 0;
- int fd;
-
- if (oldfd == newfd)
- return oldfd;
- close (newfd);
- while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
- fdtmp[fdx++] = fd;
- while (fdx > 0)
- close (fdtmp[--fdx]);
-
- return fd;
-}
-#endif /* ! HAVE_DUP2 */
-\f
/* Delete tempfiles and exit function. */
void
if (ldout != 0 && ldout[0])
{
- dump_file (ldout);
+ dump_file (ldout, stdout);
maybe_unlink (ldout);
}
+ if (lderrout != 0 && lderrout[0])
+ {
+ dump_file (lderrout, stderr);
+ maybe_unlink (lderrout);
+ }
+
if (status != 0 && output_file != 0 && output_file[0])
maybe_unlink (output_file);
+ if (response_file)
+ maybe_unlink (response_file);
+
exit (status);
}
\f
/* Notify user of a non-error. */
void
-notice (const char *msgid, ...)
+notice (const char *cmsgid, ...)
{
va_list ap;
- va_start (ap, msgid);
- vfprintf (stderr, _(msgid), ap);
+ va_start (ap, cmsgid);
+ vfprintf (stderr, _(cmsgid), ap);
va_end (ap);
}
/* Die when sys call fails. */
void
-fatal_perror (const char * msgid, ...)
+fatal_perror (const char * cmsgid, ...)
{
int e = errno;
va_list ap;
- va_start (ap, msgid);
+ va_start (ap, cmsgid);
fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(msgid), ap);
+ vfprintf (stderr, _(cmsgid), ap);
fprintf (stderr, ": %s\n", xstrerror (e));
va_end (ap);
/* Just die. */
void
-fatal (const char * msgid, ...)
+fatal (const char * cmsgid, ...)
{
va_list ap;
- va_start (ap, msgid);
+ va_start (ap, cmsgid);
fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(msgid), ap);
+ vfprintf (stderr, _(cmsgid), ap);
fprintf (stderr, "\n");
va_end (ap);
/* Write error message. */
void
-error (const char * msgid, ...)
+error (const char * gmsgid, ...)
{
va_list ap;
- va_start (ap, msgid);
+ va_start (ap, gmsgid);
fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(msgid), ap);
+ vfprintf (stderr, _(gmsgid), ap);
fprintf (stderr, "\n");
va_end(ap);
}
provide a default entry. */
void
-fancy_abort (void)
+fancy_abort (const char *file, int line, const char *func)
{
- fatal ("internal error");
+ fatal ("internal gcc abort in %s, at %s:%d", func, file, line);
}
\f
static void
if (ldout != 0 && ldout[0])
maybe_unlink (ldout);
+ if (lderrout != 0 && lderrout[0])
+ maybe_unlink (lderrout);
+
#ifdef COLLECT_EXPORT_LIST
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
#endif
+ if (response_file)
+ maybe_unlink (response_file);
+
signal (signo, SIG_DFL);
- kill (getpid (), signo);
+ raise (signo);
}
\f
obstack_1grow (&temporary_obstack, '\0');
*pp = p;
- return obstack_finish (&temporary_obstack);
+ return XOBFINISH (&temporary_obstack, char *);
}
\f
void
-dump_file (const char *name)
+dump_file (const char *name, FILE *to)
{
FILE *stream = fopen (name, "r");
const char *word, *p;
char *result;
obstack_1grow (&temporary_obstack, '\0');
- word = obstack_finish (&temporary_obstack);
+ word = XOBFINISH (&temporary_obstack, const char *);
if (*word == '.')
- ++word, putc ('.', stderr);
+ ++word, putc ('.', to);
p = word;
if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX)))
p += strlen (USER_LABEL_PREFIX);
+#ifdef HAVE_LD_DEMANGLE
+ result = 0;
+#else
if (no_demangle)
result = 0;
else
result = cplus_demangle (p, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE);
+#endif
if (result)
{
int diff;
- fputs (result, stderr);
+ fputs (result, to);
diff = strlen (word) - strlen (result);
while (diff > 0 && c == ' ')
- --diff, putc (' ', stderr);
- while (diff < 0 && c == ' ')
- ++diff, c = getc (stream);
+ --diff, putc (' ', to);
+ if (diff < 0 && c == ' ')
+ {
+ while (diff < 0 && c == ' ')
+ ++diff, c = getc (stream);
+ if (!ISSPACE (c))
+ {
+ /* Make sure we output at least one space, or
+ the demangled symbol name will run into
+ whatever text follows. */
+ putc (' ', to);
+ }
+ }
free (result);
}
else
- fputs (word, stderr);
+ fputs (word, to);
- fflush (stderr);
+ fflush (to);
obstack_free (&temporary_obstack, temporary_firstobj);
}
if (c == EOF)
break;
- putc (c, stderr);
+ putc (c, to);
}
fclose (stream);
}
static struct path_prefix cpath, path;
-#ifdef CROSS_COMPILE
+#ifdef CROSS_DIRECTORY_STRUCTURE
/* This is the name of the target machine. We use it to form the name
of the files to execute. */
len += strlen (HOST_EXECUTABLE_SUFFIX);
#endif
- temp = xmalloc (len);
+ temp = XNEWVEC (char, len);
/* Determine the filename to execute (special case for absolute paths). */
if (len > pprefix->max_len)
pprefix->max_len = len;
- pl = xmalloc (sizeof (struct prefix_list));
+ pl = XNEW (struct prefix_list);
pl->prefix = xstrdup (prefix);
if (*prev)
prefix_from_string (const char *p, struct path_prefix *pprefix)
{
const char *startp, *endp;
- char *nstore = xmalloc (strlen (p) + 3);
+ char *nstore = XNEWVEC (char, strlen (p) + 3);
if (debug)
fprintf (stderr, "Convert string '%s' into prefixes, separator = '%c'\n", p, PATH_SEPARATOR);
else
endp++;
}
+ free (nstore);
}
\f
/* Main program. */
static const char *const strip_suffix = "strip";
static const char *const gstrip_suffix = "gstrip";
-#ifdef CROSS_COMPILE
+#ifdef CROSS_DIRECTORY_STRUCTURE
/* If we look for a program in the compiler directories, we just use
the short name, since these directories are already system-specific.
But it we look for a program in the system directories, we need to
#endif
const char *const full_strip_suffix = strip_suffix;
const char *const full_gstrip_suffix = gstrip_suffix;
-#endif /* CROSS_COMPILE */
+#endif /* CROSS_DIRECTORY_STRUCTURE */
const char *arg;
FILE *outf;
char **object_lst;
const char **object;
int first_file;
- int num_c_args = argc+9;
+ int num_c_args;
+ char **old_argv;
+
+ old_argv = argv;
+ expandargv (&argc, &argv);
+ if (argv != old_argv)
+ at_file_supplied = 1;
+
+ num_c_args = argc + 9;
no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
signal (SIGCHLD, SIG_DFL);
#endif
+ /* Unlock the stdio streams. */
+ unlock_std_streams ();
+
gcc_init_libintl ();
/* Do not invoke xcalloc before this point, since locale needs to be
set first, in case a diagnostic is issued. */
- ld1 = (const char **)(ld1_argv = xcalloc(sizeof (char *), argc+3));
- ld2 = (const char **)(ld2_argv = xcalloc(sizeof (char *), argc+10));
+ ld1 = (const char **)(ld1_argv = xcalloc(sizeof (char *), argc+4));
+ ld2 = (const char **)(ld2_argv = xcalloc(sizeof (char *), argc+11));
object = (const char **)(object_lst = xcalloc(sizeof (char *), argc));
#ifdef DEBUG
{
if (! strcmp (argv[i], "-debug"))
debug = 1;
- COLLECT_PARSE_FLAG (argv[i]);
}
vflag = debug;
}
obstack_begin (&temporary_obstack, 0);
temporary_firstobj = obstack_alloc (&temporary_obstack, 0);
+#ifndef HAVE_LD_DEMANGLE
current_demangling_style = auto_demangling;
+#endif
p = getenv ("COLLECT_GCC_OPTIONS");
while (p && *p)
{
}
obstack_free (&temporary_obstack, temporary_firstobj);
- /* -fno-exceptions -w */
- num_c_args += 2;
+ /* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities
+ -fno-exceptions -w */
+ num_c_args += 5;
c_ptr = (const char **) (c_argv = xcalloc (sizeof (char *), num_c_args));
c_file_name = getenv ("COLLECT_GCC");
if (c_file_name == 0)
{
-#ifdef CROSS_COMPILE
+#ifdef CROSS_DIRECTORY_STRUCTURE
c_file_name = concat (target_machine, "-gcc", NULL);
#else
c_file_name = "gcc";
export_file = make_temp_file (".x");
#endif
ldout = make_temp_file (".ld");
+ lderrout = make_temp_file (".le");
*c_ptr++ = c_file_name;
*c_ptr++ = "-x";
*c_ptr++ = "c";
}
}
obstack_free (&temporary_obstack, temporary_firstobj);
+ *c_ptr++ = "-fno-profile-arcs";
+ *c_ptr++ = "-fno-test-coverage";
+ *c_ptr++ = "-fno-branch-probabilities";
*c_ptr++ = "-fno-exceptions";
*c_ptr++ = "-w";
/* After the first file, put in the c++ rt0. */
first_file = 1;
+#ifdef HAVE_LD_DEMANGLE
+ if (!demangle_flag && !no_demangle)
+ demangle_flag = "--demangle";
+ if (demangle_flag)
+ *ld1++ = *ld2++ = demangle_flag;
+#endif
while ((arg = *++argv) != (char *) 0)
{
*ld1++ = *ld2++ = arg;
explicitly puts an export list in command line */
case 'b':
if (arg[2] == 'E' || strncmp (&arg[2], "export", 6) == 0)
- export_flag = 1;
+ export_flag = 1;
else if (arg[2] == '6' && arg[3] == '4')
aix64_flag = 1;
+ else if (arg[2] == 'r' && arg[3] == 't' && arg[4] == 'l')
+ aixrtl_flag = 1;
break;
#endif
ld1--;
ld2--;
}
+ if (!strcmp (arg, "-dynamic-linker") && argv[1])
+ {
+ ++argv;
+ *ld1++ = *ld2++ = *argv;
+ }
break;
case 'l':
}
#ifdef COLLECT_EXPORT_LIST
{
- /* Resolving full library name. */
+ /* Resolving full library name. */
const char *s = resolve_lib_name (arg+2);
/* Saving a full library name. */
if (arg[2] == '\0')
vflag = 1;
break;
+
+ case '-':
+ if (strcmp (arg, "--no-demangle") == 0)
+ {
+ demangle_flag = arg;
+ no_demangle = 1;
+ ld1--;
+ ld2--;
+ }
+ else if (strncmp (arg, "--demangle", 10) == 0)
+ {
+ demangle_flag = arg;
+ no_demangle = 0;
+#ifndef HAVE_LD_DEMANGLE
+ if (arg[10] == '=')
+ {
+ enum demangling_styles style
+ = cplus_demangle_name_to_style (arg+11);
+ if (style == unknown_demangling)
+ error ("unknown demangling style '%s'", arg+11);
+ else
+ current_demangling_style = style;
+ }
+#endif
+ ld1--;
+ ld2--;
+ }
+ break;
}
}
else if ((p = strrchr (arg, '.')) != (char *) 0
else
{
/* Saving a full library name. */
- add_to_list (&libs, arg);
- }
+ add_to_list (&libs, arg);
+ }
#endif
}
}
/* Strip now if it was requested on the command line. */
if (strip_flag)
{
- char **real_strip_argv = xcalloc (sizeof (char *), 3);
+ char **real_strip_argv = XCNEWVEC (char *, 3);
const char ** strip_argv = (const char **) real_strip_argv;
strip_argv[0] = strip_file_name;
if (! exports.first)
*ld2++ = concat ("-bE:", export_file, NULL);
+#ifndef LD_INIT_SWITCH
add_to_list (&exports, initname);
add_to_list (&exports, fininame);
add_to_list (&exports, "_GLOBAL__DI");
add_to_list (&exports, "_GLOBAL__DD");
+#endif
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
fatal_perror ("fopen %s", export_file);
fork_execute ("gcc", c_argv);
#ifdef COLLECT_EXPORT_LIST
- /* On AIX we must call tlink because of possible templates resolution */
+ /* On AIX we must call tlink because of possible templates resolution. */
do_tlink (ld2_argv, object_lst);
#else
- /* Otherwise, simply call ld because tlink is already done */
+ /* Otherwise, simply call ld because tlink is already done. */
fork_execute ("ld", ld2_argv);
/* Let scan_prog_file do any final mods (OSF/rose needs this for
/* Wait for a process to finish, and exit if a nonzero status is found. */
int
-collect_wait (const char *prog)
+collect_wait (const char *prog, struct pex_obj *pex)
{
int status;
- pwait (pid, &status, 0);
+ if (!pex_get_status (pex, 1, &status))
+ fatal_perror ("can't get program status");
+ pex_free (pex);
+
if (status)
{
if (WIFSIGNALED (status))
}
static void
-do_wait (const char *prog)
+do_wait (const char *prog, struct pex_obj *pex)
{
- int ret = collect_wait (prog);
+ int ret = collect_wait (prog, pex);
if (ret != 0)
{
error ("%s returned %d exit status", prog, ret);
collect_exit (ret);
}
+
+ if (response_file)
+ {
+ unlink (response_file);
+ response_file = NULL;
+ }
}
\f
/* Execute a program, and wait for the reply. */
-void
-collect_execute (const char *prog, char **argv, const char *redir)
+struct pex_obj *
+collect_execute (const char *prog, char **argv, const char *outname,
+ const char *errname)
{
- char *errmsg_fmt;
- char *errmsg_arg;
- int redir_handle = -1;
- int stdout_save = -1;
- int stderr_save = -1;
+ struct pex_obj *pex;
+ const char *errmsg;
+ int err;
+ char *response_arg = NULL;
+ char *response_argv[3] ATTRIBUTE_UNUSED;
+
+ if (HAVE_GNU_LD && at_file_supplied && argv[0] != NULL)
+ {
+ /* If using @file arguments, create a temporary file and put the
+ contents of argv into it. Then change argv to an array corresponding
+ to a single argument @FILE, where FILE is the temporary filename. */
+
+ char **current_argv = argv + 1;
+ char *argv0 = argv[0];
+ int status;
+ FILE *f;
+
+ /* Note: we assume argv contains at least one element; this is
+ checked above. */
+
+ response_file = make_temp_file ("");
+
+ f = fopen (response_file, "w");
+
+ if (f == NULL)
+ fatal ("could not open response file %s", response_file);
+
+ status = writeargv (current_argv, f);
+
+ if (status)
+ fatal ("could not write to response file %s", response_file);
+
+ status = fclose (f);
+
+ if (EOF == status)
+ fatal ("could not close response file %s", response_file);
+
+ response_arg = concat ("@", response_file, NULL);
+ response_argv[0] = argv0;
+ response_argv[1] = response_arg;
+ response_argv[2] = NULL;
+
+ argv = response_argv;
+ }
if (vflag || debug)
{
since we might not end up needing something that we could not find. */
if (argv[0] == 0)
- fatal ("cannot find `%s'", prog);
-
- if (redir)
- {
- /* Open response file. */
- redir_handle = open (redir, O_WRONLY | O_TRUNC | O_CREAT);
-
- /* Duplicate the stdout and stderr file handles
- so they can be restored later. */
- stdout_save = dup (STDOUT_FILENO);
- if (stdout_save == -1)
- fatal_perror ("redirecting stdout: %s", redir);
- stderr_save = dup (STDERR_FILENO);
- if (stderr_save == -1)
- fatal_perror ("redirecting stdout: %s", redir);
-
- /* Redirect stdout & stderr to our response file. */
- dup2 (redir_handle, STDOUT_FILENO);
- dup2 (redir_handle, STDERR_FILENO);
- }
+ fatal ("cannot find '%s'", prog);
- pid = pexecute (argv[0], argv, argv[0], NULL, &errmsg_fmt, &errmsg_arg,
- (PEXECUTE_FIRST | PEXECUTE_LAST | PEXECUTE_SEARCH));
+ pex = pex_init (0, "collect2", NULL);
+ if (pex == NULL)
+ fatal_perror ("pex_init failed");
- if (redir)
+ errmsg = pex_run (pex, PEX_LAST | PEX_SEARCH, argv[0], argv, outname,
+ errname, &err);
+ if (errmsg != NULL)
{
- /* Restore stdout and stderr to their previous settings. */
- dup2 (stdout_save, STDOUT_FILENO);
- dup2 (stderr_save, STDERR_FILENO);
-
- /* Close response file. */
- close (redir_handle);
+ if (err != 0)
+ {
+ errno = err;
+ fatal_perror (errmsg);
+ }
+ else
+ fatal (errmsg);
}
- if (pid == -1)
- fatal_perror (errmsg_fmt, errmsg_arg);
+ if (response_arg)
+ free (response_arg);
+
+ return pex;
}
static void
fork_execute (const char *prog, char **argv)
{
- collect_execute (prog, argv, NULL);
- do_wait (prog);
+ struct pex_obj *pex;
+
+ pex = collect_execute (prog, argv, NULL, NULL);
+ do_wait (prog, pex);
}
\f
/* Unlink a file unless we are debugging. */
maybe_unlink (const char *file)
{
if (!debug)
- unlink (file);
+ unlink_if_ordinary (file);
else
notice ("[Leaving %s]\n", file);
}
|| id->sequence > (*id_ptr)->sequence
/* Hack: do lexical compare, too.
|| (id->sequence == (*id_ptr)->sequence
- && strcmp (id->name, (*id_ptr)->name) > 0) */
+ && strcmp (id->name, (*id_ptr)->name) > 0) */
)
{
id->next = *id_ptr;
}
}
/* q points to null at end of the string (or . of the .so version) */
- prefix = xmalloc (q - p + 1);
+ prefix = XNEWVEC (char, q - p + 1);
strncpy (prefix, p, q - p);
prefix[q - p] = 0;
for (r = prefix; *r; r++)
scan_prog_file (const char *prog_name, enum pass which_pass)
{
void (*int_handler) (int);
+#ifdef SIGQUIT
void (*quit_handler) (int);
+#endif
char *real_nm_argv[4];
const char **nm_argv = (const char **) real_nm_argv;
int argc = 0;
- int pipe_fd[2];
+ struct pex_obj *pex;
+ const char *errmsg;
+ int err;
char *p, buf[1024];
FILE *inf;
/* If we do not have an `nm', complain. */
if (nm_file_name == 0)
- fatal ("cannot find `nm'");
+ fatal ("cannot find 'nm'");
nm_argv[argc++] = nm_file_name;
if (NM_FLAGS[0] != '\0')
nm_argv[argc++] = prog_name;
nm_argv[argc++] = (char *) 0;
- if (pipe (pipe_fd) < 0)
- fatal_perror ("pipe");
-
- inf = fdopen (pipe_fd[0], "r");
- if (inf == (FILE *) 0)
- fatal_perror ("fdopen");
-
/* Trace if needed. */
if (vflag)
{
fflush (stdout);
fflush (stderr);
- /* Spawn child nm on pipe. */
- pid = vfork ();
- if (pid == -1)
- fatal_perror (VFORK_STRING);
+ pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
+ if (pex == NULL)
+ fatal_perror ("pex_init failed");
- if (pid == 0) /* child context */
+ errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, NULL, &err);
+ if (errmsg != NULL)
{
- /* setup stdout */
- if (dup2 (pipe_fd[1], 1) < 0)
- fatal_perror ("dup2 %d 1", pipe_fd[1]);
-
- if (close (pipe_fd[0]) < 0)
- fatal_perror ("close %d", pipe_fd[0]);
-
- if (close (pipe_fd[1]) < 0)
- fatal_perror ("close %d", pipe_fd[1]);
-
- execv (nm_file_name, real_nm_argv);
- fatal_perror ("execv %s", nm_file_name);
+ if (err != 0)
+ {
+ errno = err;
+ fatal_perror (errmsg);
+ }
+ else
+ fatal (errmsg);
}
- /* Parent context from here on. */
int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN);
#endif
- if (close (pipe_fd[1]) < 0)
- fatal_perror ("close %d", pipe_fd[1]);
+ inf = pex_read_output (pex, 0);
+ if (inf == NULL)
+ fatal_perror ("can't open nm output");
if (debug)
fprintf (stderr, "\nnm output with constructors/destructors.\n");
if (debug)
fprintf (stderr, "\n");
- if (fclose (inf) != 0)
- fatal_perror ("fclose");
-
- do_wait (nm_file_name);
+ do_wait (nm_file_name, pex);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
#endif
}
-#if SUNOS4_SHARED_LIBRARIES
-
-/* Routines to scan the SunOS 4 _DYNAMIC structure to find shared libraries
- that the output file depends upon and their initialization/finalization
- routines, if any. */
-
-#include <a.out.h>
-#include <fcntl.h>
-#include <link.h>
-#include <sys/mman.h>
-#include <sys/param.h>
-#include <unistd.h>
-#include <sys/dir.h>
-
-/* pointers to the object file */
-unsigned object; /* address of memory mapped file */
-unsigned objsize; /* size of memory mapped to file */
-char * code; /* pointer to code segment */
-char * data; /* pointer to data segment */
-struct nlist *symtab; /* pointer to symbol table */
-struct link_dynamic *ld;
-struct link_dynamic_2 *ld_2;
-struct head libraries;
-
-/* Map the file indicated by NAME into memory and store its address. */
-
-static void
-mapfile (const char *name)
-{
- int fp;
- struct stat s;
- if ((fp = open (name, O_RDONLY)) == -1)
- fatal ("unable to open file '%s'", name);
- if (fstat (fp, &s) == -1)
- fatal ("unable to stat file '%s'", name);
-
- objsize = s.st_size;
- object = (unsigned) mmap (0, objsize, PROT_READ|PROT_WRITE, MAP_PRIVATE,
- fp, 0);
- if (object == (unsigned)-1)
- fatal ("unable to mmap file '%s'", name);
-
- close (fp);
-}
-
-/* Helpers for locatelib. */
-
-static const char *libname;
-
-static int
-libselect (struct direct *d)
-{
- return (strncmp (libname, d->d_name, strlen (libname)) == 0);
-}
-
-/* If one file has an additional numeric extension past LIBNAME, then put
- that one first in the sort. If both files have additional numeric
- extensions, then put the one with the higher number first in the sort.
-
- We must verify that the extension is numeric, because Sun saves the
- original versions of patched libraries with a .FCS extension. Files with
- invalid extensions must go last in the sort, so that they will not be used. */
-
-static int
-libcompare (struct direct **d1, struct direct **d2)
-{
- int i1, i2 = strlen (libname);
- char *e1 = (*d1)->d_name + i2;
- char *e2 = (*d2)->d_name + i2;
-
- while (*e1 && *e2 && *e1 == '.' && *e2 == '.'
- && e1[1] && ISDIGIT (e1[1]) && e2[1] && ISDIGIT (e2[1]))
- {
- ++e1;
- ++e2;
- i1 = strtol (e1, &e1, 10);
- i2 = strtol (e2, &e2, 10);
- if (i1 != i2)
- return i1 - i2;
- }
-
- if (*e1)
- {
- /* It has a valid numeric extension, prefer this one. */
- if (*e1 == '.' && e1[1] && ISDIGIT (e1[1]))
- return 1;
- /* It has an invalid numeric extension, must prefer the other one. */
- else
- return -1;
- }
- else if (*e2)
- {
- /* It has a valid numeric extension, prefer this one. */
- if (*e2 == '.' && e2[1] && ISDIGIT (e2[1]))
- return -1;
- /* It has an invalid numeric extension, must prefer the other one. */
- else
- return 1;
- }
- else
- return 0;
-}
-
-/* Given the name NAME of a dynamic dependency, find its pathname and add
- it to the list of libraries. */
-
-static void
-locatelib (const char *name)
-{
- static const char **l;
- static int cnt;
- char buf[MAXPATHLEN];
- char *p, *q;
- const char **pp;
-
- if (l == 0)
- {
- char *ld_rules;
- char *ldr = 0;
- /* counting elements in array, need 1 extra for null */
- cnt = 1;
- ld_rules = (char *) (ld_2->ld_rules + code);
- if (ld_rules)
- {
- cnt++;
- for (; *ld_rules != 0; ld_rules++)
- if (*ld_rules == ':')
- cnt++;
- ld_rules = (char *) (ld_2->ld_rules + code);
- ldr = xstrdup (ld_rules);
- }
- p = getenv ("LD_LIBRARY_PATH");
- q = 0;
- if (p)
- {
- cnt++;
- for (q = p ; *q != 0; q++)
- if (*q == ':')
- cnt++;
- q = xstrdup (p);
- }
- l = xmalloc ((cnt + 3) * sizeof (char *));
- pp = l;
- if (ldr)
- {
- *pp++ = ldr;
- for (; *ldr != 0; ldr++)
- if (*ldr == ':')
- {
- *ldr++ = 0;
- *pp++ = ldr;
- }
- }
- if (q)
- {
- *pp++ = q;
- for (; *q != 0; q++)
- if (*q == ':')
- {
- *q++ = 0;
- *pp++ = q;
- }
- }
- /* built in directories are /lib, /usr/lib, and /usr/local/lib */
- *pp++ = "/lib";
- *pp++ = "/usr/lib";
- *pp++ = "/usr/local/lib";
- *pp = 0;
- }
- libname = name;
- for (pp = l; *pp != 0 ; pp++)
- {
- struct direct **namelist;
- int entries;
- if ((entries = scandir (*pp, &namelist, libselect, libcompare)) > 0)
- {
- sprintf (buf, "%s/%s", *pp, namelist[entries - 1]->d_name);
- add_to_list (&libraries, buf);
- if (debug)
- fprintf (stderr, "%s\n", buf);
- break;
- }
- }
- if (*pp == 0)
- {
- if (debug)
- notice ("not found\n");
- else
- fatal ("dynamic dependency %s not found", name);
- }
-}
-
-/* Scan the _DYNAMIC structure of the output file to find shared libraries
- that it depends upon and any constructors or destructors they contain. */
-
-static void
-scan_libraries (const char *prog_name)
-{
- struct exec *header;
- char *base;
- struct link_object *lo;
- char buff[MAXPATHLEN];
- struct id *list;
-
- mapfile (prog_name);
- header = (struct exec *)object;
- if (N_BADMAG (*header))
- fatal ("bad magic number in file '%s'", prog_name);
- if (header->a_dynamic == 0)
- return;
-
- code = (char *) (N_TXTOFF (*header) + (long) header);
- data = (char *) (N_DATOFF (*header) + (long) header);
- symtab = (struct nlist *) (N_SYMOFF (*header) + (long) header);
-
- if (header->a_magic == ZMAGIC && header->a_entry == 0x20)
- {
- /* shared object */
- ld = (struct link_dynamic *) (symtab->n_value + code);
- base = code;
- }
- else
- {
- /* executable */
- ld = (struct link_dynamic *) data;
- base = code-PAGSIZ;
- }
-
- if (debug)
- notice ("dynamic dependencies.\n");
-
- ld_2 = (struct link_dynamic_2 *) ((long) ld->ld_un.ld_2 + (long)base);
- for (lo = (struct link_object *) ld_2->ld_need; lo;
- lo = (struct link_object *) lo->lo_next)
- {
- char *name;
- lo = (struct link_object *) ((long) lo + code);
- name = (char *) (code + lo->lo_name);
- if (lo->lo_library)
- {
- if (debug)
- fprintf (stderr, "\t-l%s.%d => ", name, lo->lo_major);
- sprintf (buff, "lib%s.so.%d.%d", name, lo->lo_major, lo->lo_minor);
- locatelib (buff);
- }
- else
- {
- if (debug)
- fprintf (stderr, "\t%s\n", name);
- add_to_list (&libraries, name);
- }
- }
-
- if (debug)
- fprintf (stderr, "\n");
-
- /* now iterate through the library list adding their symbols to
- the list. */
- for (list = libraries.first; list; list = list->next)
- scan_prog_file (list->name, PASS_LIB);
-}
-
-#else /* SUNOS4_SHARED_LIBRARIES */
#ifdef LDD_SUFFIX
/* Use the List Dynamic Dependencies program to find shared libraries that
static struct head libraries; /* list of shared libraries found */
struct id *list;
void (*int_handler) (int);
+#ifdef SIGQUIT
void (*quit_handler) (int);
+#endif
char *real_ldd_argv[4];
const char **ldd_argv = (const char **) real_ldd_argv;
int argc = 0;
- int pipe_fd[2];
+ struct pex_obj *pex;
+ const char *errmsg;
+ int err;
char buf[1024];
FILE *inf;
/* If we do not have an `ldd', complain. */
if (ldd_file_name == 0)
{
- error ("cannot find `ldd'");
+ error ("cannot find 'ldd'");
return;
}
ldd_argv[argc++] = prog_name;
ldd_argv[argc++] = (char *) 0;
- if (pipe (pipe_fd) < 0)
- fatal_perror ("pipe");
-
- inf = fdopen (pipe_fd[0], "r");
- if (inf == (FILE *) 0)
- fatal_perror ("fdopen");
-
/* Trace if needed. */
if (vflag)
{
fflush (stdout);
fflush (stderr);
- /* Spawn child ldd on pipe. */
- pid = vfork ();
- if (pid == -1)
- fatal_perror (VFORK_STRING);
+ pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
+ if (pex == NULL)
+ fatal_perror ("pex_init failed");
- if (pid == 0) /* child context */
+ errmsg = pex_run (pex, 0, ldd_file_name, real_ldd_argv, NULL, NULL, &err);
+ if (errmsg != NULL)
{
- /* setup stdout */
- if (dup2 (pipe_fd[1], 1) < 0)
- fatal_perror ("dup2 %d 1", pipe_fd[1]);
-
- if (close (pipe_fd[0]) < 0)
- fatal_perror ("close %d", pipe_fd[0]);
-
- if (close (pipe_fd[1]) < 0)
- fatal_perror ("close %d", pipe_fd[1]);
-
- execv (ldd_file_name, real_ldd_argv);
- fatal_perror ("execv %s", ldd_file_name);
+ if (err != 0)
+ {
+ errno = err;
+ fatal_perror (errmsg);
+ }
+ else
+ fatal (errmsg);
}
- /* Parent context from here on. */
- int_handler = (void (*) (int))) signal (SIGINT, SIG_IGN;
+ int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
- quit_handler = (void (*) (int))) signal (SIGQUIT, SIG_IGN;
+ quit_handler = (void (*) (int)) signal (SIGQUIT, SIG_IGN);
#endif
- if (close (pipe_fd[1]) < 0)
- fatal_perror ("close %d", pipe_fd[1]);
+ inf = pex_read_output (pex, 0);
+ if (inf == NULL)
+ fatal_perror ("can't open ldd output");
if (debug)
notice ("\nldd output with constructors/destructors.\n");
*end = '\0';
if (access (name, R_OK) == 0)
- add_to_list (&libraries, name);
+ add_to_list (&libraries, name);
else
fatal ("unable to open dynamic dependency '%s'", buf);
if (debug)
fprintf (stderr, "\n");
- if (fclose (inf) != 0)
- fatal_perror ("fclose");
-
- do_wait (ldd_file_name);
+ do_wait (ldd_file_name, pex);
signal (SIGINT, int_handler);
#ifdef SIGQUIT
signal (SIGQUIT, quit_handler);
#endif
- /* now iterate through the library list adding their symbols to
+ /* Now iterate through the library list adding their symbols to
the list. */
for (list = libraries.first; list; list = list->next)
scan_prog_file (list->name, PASS_LIB);
}
#endif /* LDD_SUFFIX */
-#endif /* SUNOS4_SHARED_LIBRARIES */
#endif /* OBJECT_FORMAT_NONE */
#ifdef OBJECT_FORMAT_COFF
-#if defined(EXTENDED_COFF)
+#if defined (EXTENDED_COFF)
# define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
# define GCC_SYMENT SYMR
# define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
# define GCC_SYMENT SYMENT
-# define GCC_OK_SYMBOL(X) \
- (((X).n_sclass == C_EXT) && \
- ((X).n_scnum > N_UNDEF) && \
- (aix64_flag \
- || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \
- || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))))
-# define GCC_UNDEF_SYMBOL(X) \
- (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF))
+# if defined (C_WEAKEXT)
+# define GCC_OK_SYMBOL(X) \
+ (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \
+ ((X).n_scnum > N_UNDEF) && \
+ (aix64_flag \
+ || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \
+ || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))))
+# define GCC_UNDEF_SYMBOL(X) \
+ (((X).n_sclass == C_EXT || (X).n_sclass == C_WEAKEXT) && \
+ ((X).n_scnum == N_UNDEF))
+# else
+# define GCC_OK_SYMBOL(X) \
+ (((X).n_sclass == C_EXT) && \
+ ((X).n_scnum > N_UNDEF) && \
+ (aix64_flag \
+ || (((X).n_type & N_TMASK) == (DT_NON << N_BTSHFT) \
+ || ((X).n_type & N_TMASK) == (DT_FCN << N_BTSHFT))))
+# define GCC_UNDEF_SYMBOL(X) \
+ (((X).n_sclass == C_EXT) && ((X).n_scnum == N_UNDEF))
+# endif
# define GCC_SYMINC(X) ((X).n_numaux+1)
# define GCC_SYMZERO(X) 0
{
#endif
/* Some platforms (e.g. OSF4) declare ldopen as taking a
- non-const char * filename parameter, even though it will not
- modify that string. So we must cast away const-ness here,
- which will cause -Wcast-qual to burp. */
+ non-const char * filename parameter, even though it will not
+ modify that string. So we must cast away const-ness here,
+ which will cause -Wcast-qual to burp. */
if ((ldptr = ldopen ((char *)prog_name, ldptr)) != NULL)
{
if (! MY_ISCOFF (HEADER (ldptr).f_magic))
char *name;
if ((name = ldgetname (ldptr, &symbol)) == NULL)
- continue; /* should never happen */
+ continue; /* Should never happen. */
#ifdef XCOFF_DEBUGGING_INFO
/* All AIX function names have a duplicate entry
case 1:
if (! is_shared)
add_to_list (&constructors, name);
-#ifdef COLLECT_EXPORT_LIST
+#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
case 2:
if (! is_shared)
add_to_list (&destructors, name);
-#ifdef COLLECT_EXPORT_LIST
+#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
case 5:
if (! is_shared)
add_to_list (&frame_tables, name);
-#ifdef COLLECT_EXPORT_LIST
+#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
#endif
default: /* not a constructor or destructor */
#ifdef COLLECT_EXPORT_LIST
- /* If we are building a shared object on AIX we need
- to explicitly export all global symbols. */
- if (shared_obj)
- {
- if (which_pass == PASS_OBJ && (! export_flag))
- add_to_list (&exports, name);
- }
+ /* Explicitly export all global symbols when
+ building a shared object on AIX, but do not
+ re-export symbols from another shared object
+ and do not export symbols if the user
+ provides an explicit export list. */
+ if (shared_obj && !is_shared
+ && which_pass == PASS_OBJ && !export_flag)
+ add_to_list (&exports, name);
#endif
continue;
}
{
char *lib_buf;
int i, j, l = 0;
+ /* Library extensions for AIX dynamic linking. */
+ const char * const libexts[2] = {"a", "so"};
for (i = 0; libpaths[i]; i++)
if (libpaths[i]->max_len > l)
const char *p = "";
if (list->prefix[strlen(list->prefix)-1] != '/')
p = "/";
- for (j = 0; libexts[j]; j++)
+ for (j = 0; j < 2; j++)
{
sprintf (lib_buf, "%s%slib%s.%s",
- list->prefix, p, name, libexts[j]);
-if (debug) fprintf (stderr, "searching for: %s\n", lib_buf);
+ list->prefix, p, name,
+ libexts[(j + aixrtl_flag) % 2]);
+ if (debug) fprintf (stderr, "searching for: %s\n", lib_buf);
if (file_exists (lib_buf))
{
-if (debug) fprintf (stderr, "found: %s\n", lib_buf);
+ if (debug) fprintf (stderr, "found: %s\n", lib_buf);
return (lib_buf);
}
}
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