/* 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, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
Contributed by Chris Smith (csmith@convex.com).
Heavily modified by Michael Meissner (meissner@cygnus.com),
#include "collect2.h"
#include "collect2-aix.h"
+#include "diagnostic.h"
#include "demangle.h"
#include "obstack.h"
#include "intl.h"
bool vflag; /* true if -v or --version */
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 const char *target_system_root = "";
#endif
+/* Whether we may unlink the output file, which should be set as soon as we
+ know we have successfully produced it. This is typically useful to prevent
+ blindly attempting to unlink a read-only output that the target linker
+ would leave untouched. */
+bool may_unlink_output_file = false;
+
/* Structure to hold all the directories in which to search for files to
execute. */
#ifdef SCAN_LIBRARIES
static void scan_libraries (const char *);
#endif
-#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
-static int is_in_args (const char *, const char **, const char **);
-#endif
#ifdef COLLECT_EXPORT_LIST
#if 0
static int is_in_list (const char *, struct id *);
vfprintf (stderr, cmsgid, ap);
va_end (ap);
}
-
-/* Die when sys call fails. */
-
-void
-fatal_perror (const char * cmsgid, ...)
-{
- int e = errno;
- va_list ap;
-
- va_start (ap, cmsgid);
- fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(cmsgid), ap);
- fprintf (stderr, ": %s\n", xstrerror (e));
- va_end (ap);
-
- collect_exit (FATAL_EXIT_CODE);
-}
-
-/* Just die. */
-
-void
-fatal (const char * cmsgid, ...)
-{
- va_list ap;
-
- va_start (ap, cmsgid);
- fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(cmsgid), ap);
- fprintf (stderr, "\n");
- va_end (ap);
-
- collect_exit (FATAL_EXIT_CODE);
-}
-
-/* Write error message. */
-
-void
-error (const char * gmsgid, ...)
-{
- va_list ap;
-
- va_start (ap, gmsgid);
- fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(gmsgid), ap);
- fprintf (stderr, "\n");
- va_end(ap);
-}
-
-/* In case obstack is linked in, and abort is defined to fancy_abort,
- provide a default entry. */
-
-void
-fancy_abort (const char *file, int line, const char *func)
-{
- fatal ("internal gcc abort in %s, at %s:%d", func, file, line);
-}
\f
static void
handler (int signo)
files contain LTO info. The linker command line LTO_LD_ARGV
represents the linker command that would produce a final executable
without the use of LTO. OBJECT_LST is a vector of object file names
- appearing in LTO_LD_ARGV that are to be considerd for link-time
+ appearing in LTO_LD_ARGV that are to be considered for link-time
recompilation, where OBJECT is a pointer to the last valid element.
(This awkward convention avoids an impedance mismatch with the
usage of similarly-named variables in main().) The elements of
size_t num_files;
if (!lto_wrapper)
- fatal ("COLLECT_LTO_WRAPPER must be set");
+ fatal_error ("COLLECT_LTO_WRAPPER must be set");
num_lto_c_args++;
main (int argc, char **argv)
{
static const char *const ld_suffix = "ld";
- static const char *const plugin_ld_suffix = PLUGIN_LD;
+ static const char *const plugin_ld_suffix = PLUGIN_LD_SUFFIX;
static const char *const real_ld_suffix = "real-ld";
static const char *const collect_ld_suffix = "collect-ld";
static const char *const nm_suffix = "nm";
const char **ld2;
char **object_lst;
const char **object;
+#ifdef TARGET_AIX_VERSION
+ int object_nbr = argc;
+#endif
int first_file;
int num_c_args;
char **old_argv;
+ p = argv[0] + strlen (argv[0]);
+ while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
+ --p;
+ progname = p;
+
+ xmalloc_set_program_name (progname);
+
old_argv = argv;
expandargv (&argc, &argv);
if (argv != old_argv)
num_c_args = argc + 9;
+#ifndef HAVE_LD_DEMANGLE
no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
/* Suppress demangling by the real linker, which may be broken. */
- putenv (xstrdup ("COLLECT_NO_DEMANGLE="));
+ putenv (xstrdup ("COLLECT_NO_DEMANGLE=1"));
+#endif
#if defined (COLLECT2_HOST_INITIALIZATION)
/* Perform system dependent initialization, if necessary. */
gcc_init_libintl ();
+ diagnostic_initialize (global_dc, 0);
+
/* Do not invoke xcalloc before this point, since locale needs to be
set first, in case a diagnostic is issued. */
c_ptr = CONST_CAST2 (const char **, char **, c_argv);
if (argc < 2)
- fatal ("no arguments");
+ fatal_error ("no arguments");
#ifdef SIGQUIT
if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
/* 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;
"configuration");
#endif
}
+#ifdef TARGET_AIX_VERSION
+ else
+ {
+ /* File containing a list of input files to process. */
+
+ FILE *stream;
+ char buf[MAXPATHLEN + 2];
+ /* Number of additionnal object files. */
+ int add_nbr = 0;
+ /* Maximum of additionnal object files before vector
+ expansion. */
+ int add_max = 0;
+ const char *list_filename = arg + 2;
+
+ /* Accept -fFILENAME and -f FILENAME. */
+ if (*list_filename == '\0' && argv[1])
+ {
+ ++argv;
+ list_filename = *argv;
+ *ld1++ = *ld2++ = *argv;
+ }
+
+ stream = fopen (list_filename, "r");
+ if (stream == NULL)
+ fatal_error ("can't open %s: %m", list_filename);
+
+ while (fgets (buf, sizeof buf, stream) != NULL)
+ {
+ /* Remove end of line. */
+ int len = strlen (buf);
+ if (len >= 1 && buf[len - 1] =='\n')
+ buf[len - 1] = '\0';
+
+ /* Put on object vector.
+ Note: we only expanse vector here, so we must keep
+ extra space for remaining arguments. */
+ if (add_nbr >= add_max)
+ {
+ int pos =
+ object - CONST_CAST2 (const char **, char **,
+ object_lst);
+ add_max = (add_max == 0) ? 16 : add_max * 2;
+ object_lst = XRESIZEVEC (char *, object_lst,
+ object_nbr + add_max);
+ object = CONST_CAST2 (const char **, char **,
+ object_lst) + pos;
+ object_nbr += add_max;
+ }
+ *object++ = xstrdup (buf);
+ add_nbr++;
+ }
+ fclose (stream);
+ }
+#endif
break;
case 'l':
case 'L':
add_prefix (&cmdline_lib_dirs, arg+2);
break;
-#else
-#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
- case 'L':
- if (is_in_args (arg,
- CONST_CAST2 (const char **, char **, ld1_argv),
- ld1 - 1))
- --ld1;
- break;
-#endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */
#endif
case 'o':
case '-':
if (strcmp (arg, "--no-demangle") == 0)
{
- demangle_flag = arg;
+#ifndef HAVE_LD_DEMANGLE
no_demangle = 1;
ld1--;
ld2--;
+#endif
}
else if (strncmp (arg, "--demangle", 10) == 0)
{
- demangle_flag = arg;
- no_demangle = 0;
#ifndef HAVE_LD_DEMANGLE
+ no_demangle = 0;
if (arg[10] == '=')
{
enum demangling_styles style
else
current_demangling_style = style;
}
-#endif
ld1--;
ld2--;
+#endif
}
else if (strncmp (arg, "--sysroot=", 10) == 0)
target_system_root = arg + 10;
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
- fatal_perror ("fopen %s", export_file);
+ fatal_error ("fopen %s: %m", export_file);
write_aix_file (exportf, exports.first);
if (fclose (exportf))
- fatal_perror ("fclose %s", export_file);
+ fatal_error ("fclose %s: %m", export_file);
}
#endif
maybe_unlink(output_file);
outf = fopen (c_file, "w");
if (outf == (FILE *) 0)
- fatal_perror ("fopen %s", c_file);
+ fatal_error ("fopen %s: %m", c_file);
write_c_file (outf, c_file);
if (fclose (outf))
- fatal_perror ("fclose %s", c_file);
+ fatal_error ("fclose %s: %m", c_file);
/* Tell the linker that we have initializer and finalizer functions. */
#ifdef LD_INIT_SWITCH
#endif
exportf = fopen (export_file, "w");
if (exportf == (FILE *) 0)
- fatal_perror ("fopen %s", export_file);
+ fatal_error ("fopen %s: %m", export_file);
write_aix_file (exportf, exports.first);
if (fclose (exportf))
- fatal_perror ("fclose %s", export_file);
+ fatal_error ("fclose %s: %m", export_file);
}
#endif
int status;
if (!pex_get_status (pex, 1, &status))
- fatal_perror ("can't get program status");
+ fatal_error ("can't get program status: %m");
pex_free (pex);
if (status)
f = fopen (response_file, "w");
if (f == NULL)
- fatal ("could not open response file %s", response_file);
+ fatal_error ("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);
+ fatal_error ("could not write to response file %s", response_file);
status = fclose (f);
if (EOF == status)
- fatal ("could not close response file %s", response_file);
+ fatal_error ("could not close response file %s", response_file);
response_arg = concat ("@", response_file, NULL);
response_argv[0] = argv0;
since we might not end up needing something that we could not find. */
if (argv[0] == 0)
- fatal ("cannot find '%s'", prog);
+ fatal_error ("cannot find '%s'", prog);
pex = pex_init (0, "collect2", NULL);
if (pex == NULL)
- fatal_perror ("pex_init failed");
+ fatal_error ("pex_init failed: %m");
errmsg = pex_run (pex, flags, argv[0], argv, outname,
errname, &err);
if (err != 0)
{
errno = err;
- fatal_perror (errmsg);
+ fatal_error ("%s: %m", _(errmsg));
}
else
- fatal (errmsg);
+ fatal_error (errmsg);
}
free (response_arg);
do_wait (prog, pex);
}
\f
-/* Unlink a file unless we are debugging. */
+/* Unlink FILE unless we are debugging or this is the output_file
+ and we may not unlink it. */
static void
maybe_unlink (const char *file)
{
- if (!debug)
- unlink_if_ordinary (file);
- else
- notice ("[Leaving %s]\n", file);
+ if (debug)
+ {
+ notice ("[Leaving %s]\n", file);
+ return;
+ }
+
+ if (file == output_file && !may_unlink_output_file)
+ return;
+
+ unlink_if_ordinary (file);
}
/* Call maybe_unlink on the NULL-terminated list, FILE_LIST. */
}
}
-#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
-/* Given a STRING, return nonzero if it occurs in the list in range
- [ARGS_BEGIN,ARGS_END). */
-
-static int
-is_in_args (const char *string, const char **args_begin,
- const char **args_end)
-{
- const char **args_pointer;
- for (args_pointer = args_begin; args_pointer != args_end; ++args_pointer)
- if (strcmp (string, *args_pointer) == 0)
- return 1;
- return 0;
-}
-#endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */
-
#ifdef COLLECT_EXPORT_LIST
/* This function is really used only on AIX, but may be useful. */
#if 0
/* LTO objects must be in a known format. This check prevents
us from accepting an archive containing LTO objects, which
- gcc cannnot currently handle. */
+ gcc cannot currently handle. */
if (which_pass == PASS_LTOINFO && !maybe_lto_object_file (prog_name))
return;
/* If we do not have an `nm', complain. */
if (nm_file_name == 0)
- fatal ("cannot find 'nm'");
+ fatal_error ("cannot find 'nm'");
nm_argv[argc++] = nm_file_name;
if (NM_FLAGS[0] != '\0')
pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
if (pex == NULL)
- fatal_perror ("pex_init failed");
+ fatal_error ("pex_init failed: %m");
errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, HOST_BIT_BUCKET,
&err);
if (err != 0)
{
errno = err;
- fatal_perror (errmsg);
+ fatal_error ("%s: %m", _(errmsg));
}
else
- fatal (errmsg);
+ fatal_error (errmsg);
}
int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
inf = pex_read_output (pex, 0);
if (inf == NULL)
- fatal_perror ("can't open nm output");
+ fatal_error ("can't open nm output: %m");
if (debug)
{
if (! (filter & SCAN_INIT))
break;
if (which_pass != PASS_LIB)
- fatal ("init function found in object %s", prog_name);
+ fatal_error ("init function found in object %s", prog_name);
#ifndef LD_INIT_SWITCH
add_to_list (&constructors, name);
#endif
if (! (filter & SCAN_FINI))
break;
if (which_pass != PASS_LIB)
- fatal ("fini function found in object %s", prog_name);
+ fatal_error ("fini function found in object %s", prog_name);
#ifndef LD_FINI_SWITCH
add_to_list (&destructors, name);
#endif
pex = pex_init (PEX_USE_PIPES, "collect2", NULL);
if (pex == NULL)
- fatal_perror ("pex_init failed");
+ fatal_error ("pex_init failed: %m");
errmsg = pex_run (pex, 0, ldd_file_name, real_ldd_argv, NULL, NULL, &err);
if (errmsg != NULL)
if (err != 0)
{
errno = err;
- fatal_perror (errmsg);
+ fatal_error ("%s: %m", _(errmsg));
}
else
- fatal (errmsg);
+ fatal_error (errmsg);
}
int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
inf = pex_read_output (pex, 0);
if (inf == NULL)
- fatal_perror ("can't open ldd output");
+ fatal_error ("can't open ldd output: %m");
if (debug)
notice ("\nldd output with constructors/destructors.\n");
name = p;
if (strncmp (name, "not found", sizeof ("not found") - 1) == 0)
- fatal ("dynamic dependency %s not found", buf);
+ fatal_error ("dynamic dependency %s not found", buf);
/* Find the end of the symbol name. */
for (end = p;
if (access (name, R_OK) == 0)
add_to_list (&libraries, name);
else
- fatal ("unable to open dynamic dependency '%s'", buf);
+ fatal_error ("unable to open dynamic dependency '%s'", buf);
if (debug)
fprintf (stderr, "\t%s\n", buf);
if ((ldptr = ldopen (CONST_CAST (char *, prog_name), ldptr)) != NULL)
{
if (! MY_ISCOFF (HEADER (ldptr).f_magic))
- fatal ("%s: not a COFF file", prog_name);
+ fatal_error ("%s: not a COFF file", prog_name);
if (GCC_CHECK_HDR (ldptr))
{
}
else
{
- fatal ("%s: cannot open as COFF file", prog_name);
+ fatal_error ("%s: cannot open as COFF file", prog_name);
}
#ifdef COLLECT_EXPORT_LIST
/* On AIX loop continues while there are more members in archive. */
if (debug)
fprintf (stderr, "not found\n");
else
- fatal ("library lib%s not found", name);
+ fatal_error ("library lib%s not found", name);
return (NULL);
}
#endif /* COLLECT_EXPORT_LIST */
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