/* 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
- Free Software Foundation, Inc.
+ Copyright (C) 1992-2014 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).
#include "coretypes.h"
#include "tm.h"
#include "filenames.h"
+#include "file-find.h"
/* TARGET_64BIT may be defined to use driver specific functionality. */
#undef TARGET_64BIT
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 int aixrtl_flag; /* true if -brtl */
+static int aixlazy_flag; /* true if -blazy */
#endif
enum lto_mode_d {
};
/* Current LTO mode. */
+#ifdef ENABLE_LTO
+static enum lto_mode_d lto_mode = LTO_MODE_WHOPR;
+#else
static enum lto_mode_d lto_mode = LTO_MODE_NONE;
+#endif
bool debug; /* true if -debug */
bool helpflag; /* true if --help */
const char *c_file_name; /* pathname of gcc */
static char *initname, *fininame; /* names of init and fini funcs */
+
+#ifdef TARGET_AIX_VERSION
+static char *aix_shared_initname;
+static char *aix_shared_fininame; /* init/fini names as per the scheme
+ described in config/rs6000/aix.h */
+#endif
+
static struct head constructors; /* list of constructors found */
static struct head destructors; /* list of destructors found */
#ifdef COLLECT_EXPORT_LIST
static const char *target_system_root = "";
#endif
-/* Structure to hold all the directories in which to search for files to
- execute. */
-
-struct prefix_list
-{
- const char *prefix; /* String to prepend to the path. */
- struct prefix_list *next; /* Next in linked list. */
-};
-
-struct path_prefix
-{
- struct prefix_list *plist; /* List of prefixes to try */
- int max_len; /* Max length of a prefix in PLIST */
- const char *name; /* Name of this list (used in config stuff) */
-};
+/* 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;
#ifdef COLLECT_EXPORT_LIST
/* Lists to keep libraries to be scanned for global constructors/destructors. */
SYM_DTOR = 2, /* destructor */
SYM_INIT = 3, /* shared object routine that calls all the ctors */
SYM_FINI = 4, /* shared object routine that calls all the dtors */
- SYM_DWEH = 5 /* DWARF exception handling table */
+ SYM_DWEH = 5, /* DWARF exception handling table */
+ SYM_AIXI = 6,
+ SYM_AIXD = 7
} symkind;
static symkind is_ctor_dtor (const char *);
static void handler (int);
-static char *find_a_file (struct path_prefix *, const char *);
-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 *, struct pex_obj *);
static void fork_execute (const char *, char **);
static void maybe_unlink (const char *);
#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 *);
SCAN_INIT = 1 << SYM_INIT,
SCAN_FINI = 1 << SYM_FINI,
SCAN_DWEH = 1 << SYM_DWEH,
+ SCAN_AIXI = 1 << SYM_AIXI,
+ SCAN_AIXD = 1 << SYM_AIXD,
SCAN_ALL = ~0
};
\f
/* Delete tempfiles and exit function. */
-void
-collect_exit (int status)
+static void
+collect_atexit (void)
{
if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
if (ldout != 0 && ldout[0])
{
- dump_file (ldout, stdout);
+ dump_ld_file (ldout, stdout);
maybe_unlink (ldout);
}
if (lderrout != 0 && lderrout[0])
{
- dump_file (lderrout, stderr);
+ dump_ld_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
}
\f
void
-dump_file (const char *name, FILE *to)
+dump_ld_file (const char *name, FILE *to)
{
FILE *stream = fopen (name, "r");
{ "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, SYM_DWEH, 0 },
{ "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, SYM_INIT, 0 },
{ "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, SYM_FINI, 0 },
+#ifdef TARGET_AIX_VERSION
+ { "GLOBAL__AIXI_", sizeof ("GLOBAL__AIXI_")-1, SYM_AIXI, 0 },
+ { "GLOBAL__AIXD_", sizeof ("GLOBAL__AIXD_")-1, SYM_AIXD, 0 },
+#endif
{ NULL, 0, SYM_REGULAR, 0 }
};
{
if (ch == p->name[0]
&& (!p->two_underscores || ((s - orig_s) >= 2))
- && strncmp(s, p->name, p->len) == 0)
+ && strncmp (s, p->name, p->len) == 0)
{
return p->ret;
}
Return 0 if not found, otherwise return its name, allocated with malloc. */
-static char *
-find_a_file (struct path_prefix *pprefix, const char *name)
-{
- char *temp;
- struct prefix_list *pl;
- int len = pprefix->max_len + strlen (name) + 1;
-
- if (debug)
- fprintf (stderr, "Looking for '%s'\n", name);
-
-#ifdef HOST_EXECUTABLE_SUFFIX
- len += strlen (HOST_EXECUTABLE_SUFFIX);
-#endif
-
- temp = XNEWVEC (char, len);
-
- /* Determine the filename to execute (special case for absolute paths). */
-
- if (IS_ABSOLUTE_PATH (name))
- {
- if (access (name, X_OK) == 0)
- {
- strcpy (temp, name);
-
- if (debug)
- fprintf (stderr, " - found: absolute path\n");
-
- return temp;
- }
-
-#ifdef HOST_EXECUTABLE_SUFFIX
- /* Some systems have a suffix for executable files.
- So try appending that. */
- strcpy (temp, name);
- strcat (temp, HOST_EXECUTABLE_SUFFIX);
-
- if (access (temp, X_OK) == 0)
- return temp;
-#endif
-
- if (debug)
- fprintf (stderr, " - failed to locate using absolute path\n");
- }
- else
- for (pl = pprefix->plist; pl; pl = pl->next)
- {
- struct stat st;
-
- strcpy (temp, pl->prefix);
- strcat (temp, name);
-
- if (stat (temp, &st) >= 0
- && ! S_ISDIR (st.st_mode)
- && access (temp, X_OK) == 0)
- return temp;
-
-#ifdef HOST_EXECUTABLE_SUFFIX
- /* Some systems have a suffix for executable files.
- So try appending that. */
- strcat (temp, HOST_EXECUTABLE_SUFFIX);
-
- if (stat (temp, &st) >= 0
- && ! S_ISDIR (st.st_mode)
- && access (temp, X_OK) == 0)
- return temp;
-#endif
- }
-
- if (debug && pprefix->plist == NULL)
- fprintf (stderr, " - failed: no entries in prefix list\n");
-
- free (temp);
- return 0;
-}
-
-/* Add an entry for PREFIX to prefix list PPREFIX. */
-
-static void
-add_prefix (struct path_prefix *pprefix, const char *prefix)
-{
- struct prefix_list *pl, **prev;
- int len;
-
- if (pprefix->plist)
- {
- for (pl = pprefix->plist; pl->next; pl = pl->next)
- ;
- prev = &pl->next;
- }
- else
- prev = &pprefix->plist;
-
- /* Keep track of the longest prefix. */
-
- len = strlen (prefix);
- if (len > pprefix->max_len)
- pprefix->max_len = len;
-
- pl = XNEW (struct prefix_list);
- pl->prefix = xstrdup (prefix);
-
- if (*prev)
- pl->next = *prev;
- else
- pl->next = (struct prefix_list *) 0;
- *prev = pl;
-}
-\f
-/* Take the value of the environment variable ENV, break it into a path, and
- add of the entries to PPREFIX. */
-
-static void
-prefix_from_env (const char *env, struct path_prefix *pprefix)
-{
- const char *p;
- p = getenv (env);
-
- if (p)
- prefix_from_string (p, pprefix);
-}
-
-static void
-prefix_from_string (const char *p, struct path_prefix *pprefix)
-{
- const char *startp, *endp;
- char *nstore = XNEWVEC (char, strlen (p) + 3);
-
- if (debug)
- fprintf (stderr, "Convert string '%s' into prefixes, separator = '%c'\n", p, PATH_SEPARATOR);
-
- startp = endp = p;
- while (1)
- {
- if (*endp == PATH_SEPARATOR || *endp == 0)
- {
- strncpy (nstore, startp, endp-startp);
- if (endp == startp)
- {
- strcpy (nstore, "./");
- }
- else if (! IS_DIR_SEPARATOR (endp[-1]))
- {
- nstore[endp-startp] = DIR_SEPARATOR;
- nstore[endp-startp+1] = 0;
- }
- else
- nstore[endp-startp] = 0;
-
- if (debug)
- fprintf (stderr, " - add prefix: %s\n", nstore);
-
- add_prefix (pprefix, nstore);
- if (*endp == 0)
- break;
- endp = startp = endp + 1;
- }
- else
- endp++;
- }
- free (nstore);
-}
-
#ifdef OBJECT_FORMAT_NONE
/* Add an entry for the object file NAME to object file list LIST.
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
plus number of partitions. */
for (lto_ld_argv_size = 0; lto_ld_argv[lto_ld_argv_size]; lto_ld_argv_size++)
;
- out_lto_ld_argv = XCNEWVEC(char *, num_files + lto_ld_argv_size + 1);
+ out_lto_ld_argv = XCNEWVEC (char *, num_files + lto_ld_argv_size + 1);
out_lto_ld_argv_size = 0;
/* After running the LTO back end, we will relink, substituting
int
main (int argc, char **argv)
{
- static const char *const ld_suffix = "ld";
- static const char *const plugin_ld_suffix = PLUGIN_LD;
+ enum linker_select
+ {
+ USE_DEFAULT_LD,
+ USE_PLUGIN_LD,
+ USE_GOLD_LD,
+ USE_BFD_LD,
+ USE_LD_MAX
+ } selected_linker = USE_DEFAULT_LD;
+ static const char *const ld_suffixes[USE_LD_MAX] =
+ {
+ "ld",
+ PLUGIN_LD_SUFFIX,
+ "ld.gold",
+ "ld.bfd"
+ };
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";
static const char *const strip_suffix = "strip";
static const char *const gstrip_suffix = "gstrip";
+ const char *full_ld_suffixes[USE_LD_MAX];
#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
qualify the program name with the target machine. */
- const char *const full_ld_suffix =
- concat(target_machine, "-", ld_suffix, NULL);
- const char *const full_plugin_ld_suffix =
- concat(target_machine, "-", plugin_ld_suffix, NULL);
const char *const full_nm_suffix =
concat (target_machine, "-", nm_suffix, NULL);
const char *const full_gnm_suffix =
const char *const full_gstrip_suffix =
concat (target_machine, "-", gstrip_suffix, NULL);
#else
- const char *const full_ld_suffix = ld_suffix;
- const char *const full_plugin_ld_suffix = plugin_ld_suffix;
- const char *const full_nm_suffix = nm_suffix;
- const char *const full_gnm_suffix = gnm_suffix;
#ifdef LDD_SUFFIX
const char *const full_ldd_suffix = ldd_suffix;
#endif
+ const char *const full_nm_suffix = nm_suffix;
+ const char *const full_gnm_suffix = gnm_suffix;
const char *const full_strip_suffix = strip_suffix;
const char *const full_gstrip_suffix = gstrip_suffix;
#endif /* CROSS_DIRECTORY_STRUCTURE */
char **ld1_argv;
const char **ld1;
bool use_plugin = false;
+ bool use_collect_ld = false;
/* The kinds of symbols we will have to consider when scanning the
outcome of a first pass link. This is ALL to start with, then might
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;
+ int i;
+
+ for (i = 0; i < USE_LD_MAX; i++)
+ full_ld_suffixes[i]
+#ifdef CROSS_DIRECTORY_STRUCTURE
+ = concat (target_machine, "-", ld_suffixes[i], NULL);
+#else
+ = ld_suffixes[i];
+#endif
p = argv[0] + strlen (argv[0]);
while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
signal (SIGCHLD, SIG_DFL);
#endif
+ if (atexit (collect_atexit) != 0)
+ fatal_error ("atexit failed");
+
/* Unlock the stdio streams. */
unlock_std_streams ();
are called. We also look for the -flto or -flto-partition=none flag to know
what LTO mode we are in. */
{
- int i;
bool no_partition = false;
for (i = 1; argv[i] != NULL; i ++)
debug = true;
else if (! strcmp (argv[i], "-flto-partition=none"))
no_partition = true;
- else if ((! strncmp (argv[i], "-flto=", 6)
- || ! strcmp (argv[i], "-flto")) && ! use_plugin)
- lto_mode = LTO_MODE_WHOPR;
else if (!strncmp (argv[i], "-fno-lto", 8))
lto_mode = LTO_MODE_NONE;
else if (! strcmp (argv[i], "-plugin"))
{
use_plugin = true;
- lto_mode = LTO_MODE_NONE;
+ if (selected_linker == USE_DEFAULT_LD)
+ selected_linker = USE_PLUGIN_LD;
}
+ else if (strcmp (argv[i], "-fuse-ld=bfd") == 0)
+ selected_linker = USE_BFD_LD;
+ else if (strcmp (argv[i], "-fuse-ld=gold") == 0)
+ selected_linker = USE_GOLD_LD;
+
#ifdef COLLECT_EXPORT_LIST
- /* since -brtl, -bexport, -b64 are not position dependent
- also check for them here */
- if ((argv[i][0] == '-') && (argv[i][1] == 'b'))
- {
- arg = argv[i];
- /* We want to disable automatic exports on AIX when user
- explicitly puts an export list in command line */
- if (arg[2] == 'E' || strncmp (&arg[2], "export", 6) == 0)
- 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;
- }
+ /* These flags are position independent, although their order
+ is important - subsequent flags override earlier ones. */
+ else if (strcmp (argv[i], "-b64") == 0)
+ aix64_flag = 1;
+ /* -bexport:filename always needs the :filename */
+ else if (strncmp (argv[i], "-bE:", 4) == 0
+ || strncmp (argv[i], "-bexport:", 9) == 0)
+ export_flag = 1;
+ else if (strcmp (argv[i], "-brtl") == 0
+ || strcmp (argv[i], "-bsvr4") == 0
+ || strcmp (argv[i], "-G") == 0)
+ aixrtl_flag = 1;
+ else if (strcmp (argv[i], "-bnortl") == 0)
+ aixrtl_flag = 0;
+ else if (strcmp (argv[i], "-blazy") == 0)
+ aixlazy_flag = 1;
#endif
}
vflag = debug;
+ find_file_set_debug (debug);
+ if (use_plugin)
+ lto_mode = LTO_MODE_NONE;
if (no_partition && lto_mode == LTO_MODE_WHOPR)
lto_mode = LTO_MODE_LTO;
}
/* Maybe we know the right file to use (if not cross). */
ld_file_name = 0;
#ifdef DEFAULT_LINKER
- if (access (DEFAULT_LINKER, X_OK) == 0)
+ if (selected_linker == USE_BFD_LD || selected_linker == USE_GOLD_LD)
+ {
+ char *linker_name;
+# ifdef HOST_EXECUTABLE_SUFFIX
+ int len = (sizeof (DEFAULT_LINKER)
+ - sizeof (HOST_EXECUTABLE_SUFFIX));
+ linker_name = NULL;
+ if (len > 0)
+ {
+ char *default_linker = xstrdup (DEFAULT_LINKER);
+ /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
+ HOST_EXECUTABLE_SUFFIX. */
+ if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX))
+ {
+ default_linker[len] = '\0';
+ linker_name = concat (default_linker,
+ &ld_suffixes[selected_linker][2],
+ HOST_EXECUTABLE_SUFFIX, NULL);
+ }
+ }
+ if (linker_name == NULL)
+# endif
+ linker_name = concat (DEFAULT_LINKER,
+ &ld_suffixes[selected_linker][2],
+ NULL);
+ if (access (linker_name, X_OK) == 0)
+ ld_file_name = linker_name;
+ }
+ if (ld_file_name == 0 && access (DEFAULT_LINKER, X_OK) == 0)
ld_file_name = DEFAULT_LINKER;
if (ld_file_name == 0)
#endif
#ifdef REAL_LD_FILE_NAME
- ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME);
+ ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME, X_OK);
if (ld_file_name == 0)
#endif
/* Search the (target-specific) compiler dirs for ld'. */
- ld_file_name = find_a_file (&cpath, real_ld_suffix);
+ ld_file_name = find_a_file (&cpath, real_ld_suffix, X_OK);
/* Likewise for `collect-ld'. */
if (ld_file_name == 0)
- ld_file_name = find_a_file (&cpath, collect_ld_suffix);
+ {
+ ld_file_name = find_a_file (&cpath, collect_ld_suffix, X_OK);
+ use_collect_ld = ld_file_name != 0;
+ }
/* Search the compiler directories for `ld'. We have protection against
recursive calls in find_a_file. */
if (ld_file_name == 0)
- ld_file_name = find_a_file (&cpath,
- use_plugin
- ? plugin_ld_suffix
- : ld_suffix);
+ ld_file_name = find_a_file (&cpath, ld_suffixes[selected_linker], X_OK);
/* Search the ordinary system bin directories
for `ld' (if native linking) or `TARGET-ld' (if cross). */
if (ld_file_name == 0)
- ld_file_name = find_a_file (&path,
- use_plugin
- ? full_plugin_ld_suffix
- : full_ld_suffix);
+ ld_file_name = find_a_file (&path, full_ld_suffixes[selected_linker], X_OK);
#ifdef REAL_NM_FILE_NAME
- nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME);
+ nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME, X_OK);
if (nm_file_name == 0)
#endif
- nm_file_name = find_a_file (&cpath, gnm_suffix);
+ nm_file_name = find_a_file (&cpath, gnm_suffix, X_OK);
if (nm_file_name == 0)
- nm_file_name = find_a_file (&path, full_gnm_suffix);
+ nm_file_name = find_a_file (&path, full_gnm_suffix, X_OK);
if (nm_file_name == 0)
- nm_file_name = find_a_file (&cpath, nm_suffix);
+ nm_file_name = find_a_file (&cpath, nm_suffix, X_OK);
if (nm_file_name == 0)
- nm_file_name = find_a_file (&path, full_nm_suffix);
+ nm_file_name = find_a_file (&path, full_nm_suffix, X_OK);
#ifdef LDD_SUFFIX
- ldd_file_name = find_a_file (&cpath, ldd_suffix);
+ ldd_file_name = find_a_file (&cpath, ldd_suffix, X_OK);
if (ldd_file_name == 0)
- ldd_file_name = find_a_file (&path, full_ldd_suffix);
+ ldd_file_name = find_a_file (&path, full_ldd_suffix, X_OK);
#endif
#ifdef REAL_STRIP_FILE_NAME
- strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME);
+ strip_file_name = find_a_file (&path, REAL_STRIP_FILE_NAME, X_OK);
if (strip_file_name == 0)
#endif
- strip_file_name = find_a_file (&cpath, gstrip_suffix);
+ strip_file_name = find_a_file (&cpath, gstrip_suffix, X_OK);
if (strip_file_name == 0)
- strip_file_name = find_a_file (&path, full_gstrip_suffix);
+ strip_file_name = find_a_file (&path, full_gstrip_suffix, X_OK);
if (strip_file_name == 0)
- strip_file_name = find_a_file (&cpath, strip_suffix);
+ strip_file_name = find_a_file (&cpath, strip_suffix, X_OK);
if (strip_file_name == 0)
- strip_file_name = find_a_file (&path, full_strip_suffix);
+ strip_file_name = find_a_file (&path, full_strip_suffix, X_OK);
/* Determine the full path name of the C compiler to use. */
c_file_name = getenv ("COLLECT_GCC");
#endif
}
- p = find_a_file (&cpath, c_file_name);
+ p = find_a_file (&cpath, c_file_name, X_OK);
/* Here it should be safe to use the system search path since we should have
already qualified the name of the compiler when it is needed. */
if (p == 0)
- p = find_a_file (&path, c_file_name);
+ p = find_a_file (&path, c_file_name, X_OK);
if (p)
c_file_name = p;
#ifdef COLLECT_EXPORT_LIST
export_file = make_temp_file (".x");
#endif
- ldout = make_temp_file (".ld");
- lderrout = make_temp_file (".le");
+ if (!debug)
+ {
+ ldout = make_temp_file (".ld");
+ lderrout = make_temp_file (".le");
+ }
*c_ptr++ = c_file_name;
*c_ptr++ = "-x";
*c_ptr++ = "c";
"configuration");
#endif
}
+ else if (!use_collect_ld
+ && strncmp (arg, "-fuse-ld=", 9) == 0)
+ {
+ /* Do not pass -fuse-ld={bfd|gold} to the linker. */
+ ld1--;
+ ld2--;
+ }
+#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':
"%d destructors found\n",
destructors.number),
destructors.number);
- notice_translated (ngettext("%d frame table found\n",
- "%d frame tables found\n",
- frame_tables.number),
+ notice_translated (ngettext ("%d frame table found\n",
+ "%d frame tables found\n",
+ frame_tables.number),
frame_tables.number);
}
sort_ids (&constructors);
sort_ids (&destructors);
- maybe_unlink(output_file);
+ maybe_unlink (output_file);
outf = fopen (c_file, "w");
if (outf == (FILE *) 0)
fatal_error ("fopen %s: %m", c_file);
if (! exports.first)
*ld2++ = concat ("-bE:", export_file, NULL);
+#ifdef TARGET_AIX_VERSION
+ add_to_list (&exports, aix_shared_initname);
+ add_to_list (&exports, aix_shared_fininame);
+#endif
+
#ifndef LD_INIT_SWITCH
add_to_list (&exports, initname);
add_to_list (&exports, fininame);
{
int sig = WTERMSIG (status);
error ("%s terminated with signal %d [%s]%s",
- prog, sig, strsignal(sig),
- WCOREDUMP(status) ? ", core dumped" : "");
- collect_exit (FATAL_EXIT_CODE);
+ prog, sig, strsignal (sig),
+ WCOREDUMP (status) ? ", core dumped" : "");
+ exit (FATAL_EXIT_CODE);
}
if (WIFEXITED (status))
if (ret != 0)
{
error ("%s returned %d exit status", prog, ret);
- collect_exit (ret);
+ exit (ret);
}
if (response_file)
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. */
{
int pos = 0, pri;
+#ifdef TARGET_AIX_VERSION
+ /* Run dependent module initializers before any constructors in this
+ module. */
+ switch (is_ctor_dtor (name))
+ {
+ case SYM_AIXI:
+ case SYM_AIXD:
+ return INT_MIN;
+ default:
+ break;
+ }
+#endif
+
while (name[pos] == '_')
++pos;
pos += 10; /* strlen ("GLOBAL__X_") */
}
}
-#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
initname = concat ("_GLOBAL__FI_", prefix, NULL);
fininame = concat ("_GLOBAL__FD_", prefix, NULL);
+#ifdef TARGET_AIX_VERSION
+ aix_shared_initname = concat ("_GLOBAL__AIXI_", prefix, NULL);
+ aix_shared_fininame = concat ("_GLOBAL__AIXD_", prefix, NULL);
+#endif
free (prefix);
/* Write the tables as C code. */
+ /* This count variable is used to prevent multiple calls to the
+ constructors/destructors.
+ This guard against multiple calls is important on AIX as the initfini
+ functions are deliberately invoked multiple times as part of the
+ mechanisms GCC uses to order constructors across different dependent
+ shared libraries (see config/rs6000/aix.h).
+ */
fprintf (stream, "static int count;\n");
fprintf (stream, "typedef void entry_pt();\n");
write_list_with_asm (stream, "extern entry_pt ", constructors.first);
if (shared_obj)
{
- COLLECT_SHARED_INIT_FUNC(stream, initname);
- COLLECT_SHARED_FINI_FUNC(stream, fininame);
+ COLLECT_SHARED_INIT_FUNC (stream, initname);
+ COLLECT_SHARED_FINI_FUNC (stream, fininame);
}
}
/* 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;
*end = '\0';
+
switch (is_ctor_dtor (name))
{
case SYM_CTOR:
#if defined (EXTENDED_COFF)
-# define GCC_SYMBOLS(X) (SYMHEADER(X).isymMax + SYMHEADER(X).iextMax)
+# define GCC_SYMBOLS(X) (SYMHEADER (X).isymMax + SYMHEADER (X).iextMax)
# define GCC_SYMENT SYMR
# define GCC_OK_SYMBOL(X) ((X).st == stProc || (X).st == stGlobal)
# define GCC_SYMINC(X) (1)
-# define GCC_SYMZERO(X) (SYMHEADER(X).isymMax)
-# define GCC_CHECK_HDR(X) (PSYMTAB(X) != 0)
+# define GCC_SYMZERO(X) (SYMHEADER (X).isymMax)
+# define GCC_CHECK_HDR(X) (PSYMTAB (X) != 0)
#else
-# define GCC_SYMBOLS(X) (HEADER(ldptr).f_nsyms)
+# define GCC_SYMBOLS(X) (HEADER (ldptr).f_nsyms)
# define GCC_SYMENT SYMENT
# if defined (C_WEAKEXT)
# define GCC_OK_SYMBOL(X) \
/* 0757 = U803XTOCMAGIC (AIX 4.3) and 0767 = U64_TOCMAGIC (AIX V5) */
#if TARGET_AIX_VERSION >= 51
# define GCC_CHECK_HDR(X) \
- ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
- || (HEADER (X).f_magic == 0767 && aix64_flag))
+ (((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
+ || (HEADER (X).f_magic == 0767 && aix64_flag)) \
+ && !(HEADER (X).f_flags & F_LOADONLY))
#else
# define GCC_CHECK_HDR(X) \
- ((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
- || (HEADER (X).f_magic == 0757 && aix64_flag))
+ (((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
+ || (HEADER (X).f_magic == 0757 && aix64_flag)) \
+ && !(HEADER (X).f_flags & F_LOADONLY))
#endif
#endif
switch (is_ctor_dtor (name))
{
+#if TARGET_AIX_VERSION
+ /* Add AIX shared library initalisers/finalisers
+ to the constructors/destructors list of the
+ current module. */
+ case SYM_AIXI:
+ if (! (filter & SCAN_CTOR))
+ break;
+ if (is_shared && !aixlazy_flag)
+ add_to_list (&constructors, name);
+ break;
+
+ case SYM_AIXD:
+ if (! (filter & SCAN_DTOR))
+ break;
+ if (is_shared && !aixlazy_flag)
+ add_to_list (&destructors, name);
+ break;
+#endif
+
case SYM_CTOR:
if (! (filter & SCAN_CTOR))
break;
while (ldclose (ldptr) == FAILURE);
#else
/* Otherwise we simply close ldptr. */
- (void) ldclose(ldptr);
+ (void) ldclose (ldptr);
#endif
}
#endif /* OBJECT_FORMAT_COFF */
if (libpaths[i]->max_len > l)
l = libpaths[i]->max_len;
- lib_buf = XNEWVEC (char, l + strlen(name) + 10);
+ lib_buf = XNEWVEC (char, l + strlen (name) + 10);
for (i = 0; libpaths[i]; i++)
{
may contain directories both with trailing DIR_SEPARATOR and
without it. */
const char *p = "";
- if (!IS_DIR_SEPARATOR (list->prefix[strlen(list->prefix)-1]))
+ if (!IS_DIR_SEPARATOR (list->prefix[strlen (list->prefix)-1]))
p = "/";
for (j = 0; j < 2; j++)
{
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