/* 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
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Chris Smith (csmith@convex.com).
Heavily modified by Michael Meissner (meissner@cygnus.com),
#include "system.h"
#include "coretypes.h"
#include "tm.h"
-#include <signal.h>
-#if ! defined( SIGCHLD ) && defined( SIGCLD )
-# define SIGCHLD SIGCLD
-#endif
+#include "filenames.h"
+
+/* TARGET_64BIT may be defined to use driver specific functionality. */
+#undef TARGET_64BIT
+#define TARGET_64BIT TARGET_64BIT_DEFAULT
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#include "collect2.h"
#include "collect2-aix.h"
+#include "diagnostic.h"
#include "demangle.h"
#include "obstack.h"
#include "intl.h"
int do_collecting = 0;
#endif
+/* Cook up an always defined indication of whether we proceed the
+ "EXPORT_LIST" way. */
+
+#ifdef COLLECT_EXPORT_LIST
+#define DO_COLLECT_EXPORT_LIST 1
+#else
+#define DO_COLLECT_EXPORT_LIST 0
+#endif
+
/* Nonzero if we should suppress the automatic demangling of identifiers
in linker error messages. Set from COLLECT_NO_DEMANGLE. */
int no_demangle;
int number;
};
-/* Enumeration giving which pass this is for scanning the program file. */
-
-enum pass {
- PASS_FIRST, /* without constructors */
- PASS_OBJ, /* individual objects */
- PASS_LIB, /* looking for shared libraries */
- PASS_SECOND /* with constructors linked in */
-};
-
-int vflag; /* true if -v */
+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 */
#endif
-int debug; /* true if -debug */
+enum lto_mode_d {
+ LTO_MODE_NONE, /* Not doing LTO. */
+ LTO_MODE_LTO, /* Normal LTO. */
+ LTO_MODE_WHOPR /* WHOPR. */
+};
+
+/* Current LTO mode. */
+static enum lto_mode_d lto_mode = LTO_MODE_NONE;
+
+bool debug; /* true if -debug */
+bool helpflag; /* true if --help */
static int shared_obj; /* true if -shared */
#ifdef COLLECT_EXPORT_LIST
static const char *export_file; /* <xxx>.x for AIX export list. */
#endif
+static char **lto_o_files; /* Output files for LTO. */
const char *ldout; /* File for ld stdout. */
const char *lderrout; /* File for ld stderr. */
static const char *output_file; /* Output file for ld. */
&libpath_lib_dirs, NULL};
#endif
+/* List of names of object files containing LTO information.
+ These are a subset of the object file names appearing on the
+ command line, and must be identical, in the sense of pointer
+ equality, with the names passed to maybe_run_lto_and_relink(). */
+
+struct lto_object
+{
+ const char *name; /* Name of object file. */
+ struct lto_object *next; /* Next in linked list. */
+};
+
+struct lto_object_list
+{
+ struct lto_object *first; /* First list element. */
+ struct lto_object *last; /* Last list element. */
+};
+
+static struct lto_object_list lto_objects;
+
/* Special kinds of symbols that a name may denote. */
typedef enum {
static void do_wait (const char *, struct pex_obj *);
static void fork_execute (const char *, char **);
static void maybe_unlink (const char *);
+static void maybe_unlink_list (char **);
static void add_to_list (struct head *, const char *);
static int extract_init_priority (const char *);
static void sort_ids (struct head *);
#ifndef LD_INIT_SWITCH
static void write_c_file_glob (FILE *, const char *);
#endif
-static void scan_prog_file (const char *, enum pass);
#ifdef SCAN_LIBRARIES
static void scan_libraries (const char *);
#endif
static char *resolve_lib_name (const char *);
#endif
static char *extract_string (const char **);
+static void post_ld_pass (bool);
+static void process_args (int *argcp, char **argv);
+
+/* Enumerations describing which pass this is for scanning the
+ program file ... */
+
+typedef enum {
+ PASS_FIRST, /* without constructors */
+ PASS_OBJ, /* individual objects */
+ PASS_LIB, /* looking for shared libraries */
+ PASS_SECOND, /* with constructors linked in */
+ PASS_LTOINFO /* looking for objects with LTO info */
+} scanpass;
+
+/* ... and which kinds of symbols are to be considered. */
+
+enum scanfilter_masks {
+ SCAN_NOTHING = 0,
+
+ SCAN_CTOR = 1 << SYM_CTOR,
+ SCAN_DTOR = 1 << SYM_DTOR,
+ SCAN_INIT = 1 << SYM_INIT,
+ SCAN_FINI = 1 << SYM_FINI,
+ SCAN_DWEH = 1 << SYM_DWEH,
+ SCAN_ALL = ~0
+};
+
+/* This type is used for parameters and variables which hold
+ combinations of the flags in enum scanfilter_masks. */
+typedef int scanfilter;
+
+/* Scan the name list of the loaded program for the symbols g++ uses for
+ static constructors and destructors.
+
+ The SCANPASS argument tells which collect processing pass this is for and
+ the SCANFILTER argument tells which kinds of symbols to consider in this
+ pass. Symbols of a special kind not in the filter mask are considered as
+ regular ones.
+
+ The constructor table begins at __CTOR_LIST__ and contains a count of the
+ number of pointers (or -1 if the constructors are built in a separate
+ section by the linker), followed by the pointers to the constructor
+ functions, terminated with a null pointer. The destructor table has the
+ same format, and begins at __DTOR_LIST__. */
+
+static void scan_prog_file (const char *, scanpass, scanfilter);
+
\f
/* Delete tempfiles and exit function. */
maybe_unlink (export_file);
#endif
+ if (lto_o_files)
+ maybe_unlink_list (lto_o_files);
+
if (ldout != 0 && ldout[0])
{
dump_file (ldout, stdout);
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. */
-
+/* Notify user of a non-error, without translating the format string. */
void
-fatal (const char * cmsgid, ...)
+notice_translated (const char *cmsgid, ...)
{
va_list ap;
va_start (ap, cmsgid);
- fprintf (stderr, "collect2: ");
- vfprintf (stderr, _(cmsgid), ap);
- fprintf (stderr, "\n");
+ vfprintf (stderr, cmsgid, ap);
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
maybe_unlink (export_file);
#endif
+ if (lto_o_files)
+ maybe_unlink_list (lto_o_files);
+
if (response_file)
maybe_unlink (response_file);
prefix_from_env (const char *env, struct path_prefix *pprefix)
{
const char *p;
- GET_ENVIRONMENT (p, env);
+ p = getenv (env);
if (p)
prefix_from_string (p, pprefix);
}
free (nstore);
}
+
+#ifdef OBJECT_FORMAT_NONE
+
+/* Add an entry for the object file NAME to object file list LIST.
+ New entries are added at the end of the list. The original pointer
+ value of NAME is preserved, i.e., no string copy is performed. */
+
+static void
+add_lto_object (struct lto_object_list *list, const char *name)
+{
+ struct lto_object *n = XNEW (struct lto_object);
+ n->name = name;
+ n->next = NULL;
+
+ if (list->last)
+ list->last->next = n;
+ else
+ list->first = n;
+
+ list->last = n;
+}
+#endif /* OBJECT_FORMAT_NONE */
+
+
+/* Perform a link-time recompilation and relink if any of the object
+ 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
+ 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
+ OBJECT_LST must be identical, i.e., pointer equal, to the
+ corresponding arguments in LTO_LD_ARGV.
+
+ Upon entry, at least one linker run has been performed without the
+ use of any LTO info that might be present. Any recompilations
+ necessary for template instantiations have been performed, and
+ initializer/finalizer tables have been created if needed and
+ included in the linker command line LTO_LD_ARGV. If any of the
+ object files contain LTO info, we run the LTO back end on all such
+ files, and perform the final link with the LTO back end output
+ substituted for the LTO-optimized files. In some cases, a final
+ link with all link-time generated code has already been performed,
+ so there is no need to relink if no LTO info is found. In other
+ cases, our caller has not produced the final executable, and is
+ relying on us to perform the required link whether LTO info is
+ present or not. In that case, the FORCE argument should be true.
+ Note that the linker command line argument LTO_LD_ARGV passed into
+ this function may be modified in place. */
+
+static void
+maybe_run_lto_and_relink (char **lto_ld_argv, char **object_lst,
+ const char **object, bool force)
+{
+ const char **object_file = CONST_CAST2 (const char **, char **, object_lst);
+
+ int num_lto_c_args = 1; /* Allow space for the terminating NULL. */
+
+ while (object_file < object)
+ {
+ /* If file contains LTO info, add it to the list of LTO objects. */
+ scan_prog_file (*object_file++, PASS_LTOINFO, SCAN_ALL);
+
+ /* Increment the argument count by the number of object file arguments
+ we will add. An upper bound suffices, so just count all of the
+ object files regardless of whether they contain LTO info. */
+ num_lto_c_args++;
+ }
+
+ if (lto_objects.first)
+ {
+ char **lto_c_argv;
+ const char **lto_c_ptr;
+ char **p;
+ char **lto_o_ptr;
+ struct lto_object *list;
+ char *lto_wrapper = getenv ("COLLECT_LTO_WRAPPER");
+ struct pex_obj *pex;
+ const char *prog = "lto-wrapper";
+ int lto_ld_argv_size = 0;
+ char **out_lto_ld_argv;
+ int out_lto_ld_argv_size;
+ size_t num_files;
+
+ if (!lto_wrapper)
+ fatal_error ("COLLECT_LTO_WRAPPER must be set");
+
+ num_lto_c_args++;
+
+ /* There is at least one object file containing LTO info,
+ so we need to run the LTO back end and relink.
+
+ To do so we build updated ld arguments with first
+ LTO object replaced by all partitions and other LTO
+ objects removed. */
+
+ lto_c_argv = (char **) xcalloc (sizeof (char *), num_lto_c_args);
+ lto_c_ptr = CONST_CAST2 (const char **, char **, lto_c_argv);
+
+ *lto_c_ptr++ = lto_wrapper;
+
+ /* Add LTO objects to the wrapper command line. */
+ for (list = lto_objects.first; list; list = list->next)
+ *lto_c_ptr++ = list->name;
+
+ *lto_c_ptr = NULL;
+
+ /* Run the LTO back end. */
+ pex = collect_execute (prog, lto_c_argv, NULL, NULL, PEX_SEARCH);
+ {
+ int c;
+ FILE *stream;
+ size_t i;
+ char *start, *end;
+
+ stream = pex_read_output (pex, 0);
+ gcc_assert (stream);
+
+ num_files = 0;
+ while ((c = getc (stream)) != EOF)
+ {
+ obstack_1grow (&temporary_obstack, c);
+ if (c == '\n')
+ ++num_files;
+ }
+
+ lto_o_files = XNEWVEC (char *, num_files + 1);
+ lto_o_files[num_files] = NULL;
+ start = XOBFINISH (&temporary_obstack, char *);
+ for (i = 0; i < num_files; ++i)
+ {
+ end = start;
+ while (*end != '\n')
+ ++end;
+ *end = '\0';
+
+ lto_o_files[i] = xstrdup (start);
+
+ start = end + 1;
+ }
+
+ obstack_free (&temporary_obstack, temporary_firstobj);
+ }
+ do_wait (prog, pex);
+ pex = NULL;
+
+ /* Compute memory needed for new LD arguments. At most number of original arguemtns
+ 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_size = 0;
+
+ /* After running the LTO back end, we will relink, substituting
+ the LTO output for the object files that we submitted to the
+ LTO. Here, we modify the linker command line for the relink. */
+
+ /* Copy all arguments until we find first LTO file. */
+ p = lto_ld_argv;
+ while (*p != NULL)
+ {
+ for (list = lto_objects.first; list; list = list->next)
+ if (*p == list->name) /* Note test for pointer equality! */
+ break;
+ if (list)
+ break;
+ out_lto_ld_argv[out_lto_ld_argv_size++] = *p++;
+ }
+
+ /* Now insert all LTO partitions. */
+ lto_o_ptr = lto_o_files;
+ while (*lto_o_ptr)
+ out_lto_ld_argv[out_lto_ld_argv_size++] = *lto_o_ptr++;
+
+ /* ... and copy the rest. */
+ while (*p != NULL)
+ {
+ for (list = lto_objects.first; list; list = list->next)
+ if (*p == list->name) /* Note test for pointer equality! */
+ break;
+ if (!list)
+ out_lto_ld_argv[out_lto_ld_argv_size++] = *p;
+ p++;
+ }
+ out_lto_ld_argv[out_lto_ld_argv_size++] = 0;
+
+ /* Run the linker again, this time replacing the object files
+ optimized by the LTO with the temporary file generated by the LTO. */
+ fork_execute ("ld", out_lto_ld_argv);
+ post_ld_pass (true);
+ free (lto_ld_argv);
+
+ maybe_unlink_list (lto_o_files);
+ }
+ else if (force)
+ {
+ /* Our caller is relying on us to do the link
+ even though there is no LTO back end work to be done. */
+ fork_execute ("ld", lto_ld_argv);
+ post_ld_pass (false);
+ }
+}
\f
/* Main program. */
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 real_ld_suffix = "real-ld";
static const char *const collect_ld_suffix = "collect-ld";
static const char *const nm_suffix = "nm";
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 =
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 **c_ptr;
char **ld1_argv;
const char **ld1;
+ bool use_plugin = 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
+ be adjusted before getting to the first pass link per se, typically on
+ AIX where we perform an early scan of objects and libraries to fetch
+ the list of global ctors/dtors and make sure they are not garbage
+ collected. */
+ scanfilter ld1_filter = SCAN_ALL;
+
char **ld2_argv;
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)
at_file_supplied = 1;
+ process_args (&argc, 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. */
/* Parse command line early for instances of -debug. This allows
the debug flag to be set before functions like find_a_file()
- are called. */
+ 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 ++)
{
if (! strcmp (argv[i], "-debug"))
- debug = 1;
+ 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;
+ }
+#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;
+ }
+#endif
}
vflag = debug;
+ if (no_partition && lto_mode == LTO_MODE_WHOPR)
+ lto_mode = LTO_MODE_LTO;
}
#ifndef DEFAULT_A_OUT_NAME
obstack_free (&temporary_obstack, temporary_firstobj);
/* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities
- -fno-exceptions -w */
- num_c_args += 5;
+ -fno-exceptions -w -fno-whole-program */
+ num_c_args += 6;
c_argv = XCNEWVEC (char *, num_c_args);
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)
/* 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, ld_suffix);
+ ld_file_name = find_a_file (&cpath,
+ use_plugin
+ ? plugin_ld_suffix
+ : ld_suffix);
/* 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, full_ld_suffix);
+ ld_file_name = find_a_file (&path,
+ use_plugin
+ ? full_plugin_ld_suffix
+ : full_ld_suffix);
#ifdef REAL_NM_FILE_NAME
nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME);
*c_ptr++ = "-fno-branch-probabilities";
*c_ptr++ = "-fno-exceptions";
*c_ptr++ = "-w";
+ *c_ptr++ = "-fno-whole-program";
/* !!! When GCC calls collect2,
it does not know whether it is calling collect2 or ld.
/* 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;
{
switch (arg[1])
{
-#ifdef COLLECT_EXPORT_LIST
- /* We want to disable automatic exports on AIX when user
- explicitly puts an export list in command line */
- case 'b':
- 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;
- break;
-#endif
-
case 'd':
if (!strcmp (arg, "-debug"))
{
}
break;
+ case 'f':
+ if (strncmp (arg, "-flto", 5) == 0)
+ {
+#ifdef ENABLE_LTO
+ /* Do not pass LTO flag to the linker. */
+ ld1--;
+ ld2--;
+#else
+ error ("LTO support has not been enabled in this "
+ "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':
if (first_file)
{
#else
#if LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
case 'L':
- if (is_in_args (arg, (const char **) ld1_argv, ld1-1))
+ if (is_in_args (arg,
+ CONST_CAST2 (const char **, char **, ld1_argv),
+ ld1 - 1))
--ld1;
break;
#endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */
case 'o':
if (arg[2] == '\0')
output_file = *ld1++ = *ld2++ = *++argv;
- else if (1
-#ifdef SWITCHES_NEED_SPACES
- && ! strchr (SWITCHES_NEED_SPACES, arg[1])
-#endif
- )
-
+ else
output_file = &arg[2];
break;
case 'v':
if (arg[2] == '\0')
- vflag = 1;
+ vflag = true;
break;
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;
+ else if (strcmp (arg, "--version") == 0)
+ vflag = true;
+ else if (strcmp (arg, "--help") == 0)
+ helpflag = true;
break;
}
}
}
/* The AIX linker will discard static constructors in object files if
- nothing else in the file is referenced, so look at them first. */
+ nothing else in the file is referenced, so look at them first. Unless
+ we are building a shared object, ignore the eh frame tables, as we
+ would otherwise reference them all, hence drag all the corresponding
+ objects even if nothing else is referenced. */
{
- const char **export_object_lst = (const char **)object_lst;
+ const char **export_object_lst
+ = CONST_CAST2 (const char **, char **, object_lst);
- while (export_object_lst < object)
- scan_prog_file (*export_object_lst++, PASS_OBJ);
- }
- {
struct id *list = libs.first;
+ /* Compute the filter to use from the current one, do scan, then adjust
+ the "current" filter to remove what we just included here. This will
+ control whether we need a first pass link later on or not, and what
+ will remain to be scanned there. */
+
+ scanfilter this_filter = ld1_filter;
+#if HAVE_AS_REF
+ if (!shared_obj)
+ this_filter &= ~SCAN_DWEH;
+#endif
+
+ while (export_object_lst < object)
+ scan_prog_file (*export_object_lst++, PASS_OBJ, this_filter);
+
for (; list; list = list->next)
- scan_prog_file (list->name, PASS_FIRST);
+ scan_prog_file (list->name, PASS_FIRST, this_filter);
+
+ ld1_filter = ld1_filter & ~this_filter;
}
if (exports.first)
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
*c_ptr = *ld1 = *object = (char *) 0;
if (vflag)
+ notice ("collect2 version %s\n", version_string);
+
+ if (helpflag)
{
- notice ("collect2 version %s", version_string);
-#ifdef TARGET_VERSION
- TARGET_VERSION;
-#endif
- fprintf (stderr, "\n");
+ printf ("Usage: collect2 [options]\n");
+ printf (" Wrap linker and generate constructor code if needed.\n");
+ printf (" Options:\n");
+ printf (" -debug Enable debug output\n");
+ printf (" --help Display this information\n");
+ printf (" -v, --version Display this program's version number\n");
+ printf ("\n");
+ printf ("Overview: http://gcc.gnu.org/onlinedocs/gccint/Collect2.html\n");
+ printf ("Report bugs: %s\n", bug_report_url);
+ printf ("\n");
}
if (debug)
}
/* Load the program, searching all libraries and attempting to provide
- undefined symbols from repository information. */
-
- /* On AIX we do this later. */
-#ifndef COLLECT_EXPORT_LIST
- do_tlink (ld1_argv, object_lst);
-#endif
+ undefined symbols from repository information.
- /* If -r or they will be run via some other method, do not build the
+ If -r or they will be run via some other method, do not build the
constructor or destructor list, just return now. */
- if (rflag
-#ifndef COLLECT_EXPORT_LIST
- || ! do_collecting
-#endif
- )
- {
-#ifdef COLLECT_EXPORT_LIST
- /* Do the link we avoided above if we are exiting. */
+ {
+ bool early_exit
+ = rflag || (! DO_COLLECT_EXPORT_LIST && ! do_collecting);
+
+ /* Perform the first pass link now, if we're about to exit or if we need
+ to scan for things we haven't collected yet before pursuing further.
+
+ On AIX, the latter typically includes nothing for shared objects or
+ frame tables for an executable, out of what the required early scan on
+ objects and libraries has performed above. In the !shared_obj case, we
+ expect the relevant tables to be dragged together with their associated
+ functions from precise cross reference insertions by the compiler. */
+
+ if (early_exit || ld1_filter != SCAN_NOTHING)
do_tlink (ld1_argv, object_lst);
- /* But make sure we delete the export file we may have created. */
- if (export_file != 0 && export_file[0])
- maybe_unlink (export_file);
+ if (early_exit)
+ {
+#ifdef COLLECT_EXPORT_LIST
+ /* Make sure we delete the export file we may have created. */
+ if (export_file != 0 && export_file[0])
+ maybe_unlink (export_file);
#endif
- maybe_unlink (c_file);
- maybe_unlink (o_file);
- return 0;
- }
+ if (lto_mode != LTO_MODE_NONE)
+ maybe_run_lto_and_relink (ld1_argv, object_lst, object, false);
+ else
+ post_ld_pass (false);
- /* Examine the namelist with nm and search it for static constructors
- and destructors to call.
- Write the constructor and destructor tables to a .s file and reload. */
+ maybe_unlink (c_file);
+ maybe_unlink (o_file);
+ return 0;
+ }
+ }
- /* On AIX we already scanned for global constructors/destructors. */
-#ifndef COLLECT_EXPORT_LIST
- scan_prog_file (output_file, PASS_FIRST);
-#endif
+ /* Unless we have done it all already, examine the namelist and search for
+ static constructors and destructors to call. Write the constructor and
+ destructor tables to a .s file and reload. */
+
+ if (ld1_filter != SCAN_NOTHING)
+ scan_prog_file (output_file, PASS_FIRST, ld1_filter);
#ifdef SCAN_LIBRARIES
scan_libraries (output_file);
if (debug)
{
- notice ("%d constructor(s) found\n", constructors.number);
- notice ("%d destructor(s) found\n", destructors.number);
- notice ("%d frame table(s) found\n", frame_tables.number);
+ notice_translated (ngettext ("%d constructor found\n",
+ "%d constructors found\n",
+ constructors.number),
+ constructors.number);
+ notice_translated (ngettext ("%d destructor found\n",
+ "%d destructors found\n",
+ destructors.number),
+ destructors.number);
+ notice_translated (ngettext("%d frame table found\n",
+ "%d frame tables found\n",
+ frame_tables.number),
+ frame_tables.number);
}
+ /* If the scan exposed nothing of special interest, there's no need to
+ generate the glue code and relink so return now. */
+
if (constructors.number == 0 && destructors.number == 0
&& frame_tables.number == 0
#if defined (SCAN_LIBRARIES) || defined (COLLECT_EXPORT_LIST)
#endif
)
{
-#ifdef COLLECT_EXPORT_LIST
- /* Do tlink without additional code generation. */
- do_tlink (ld1_argv, object_lst);
-#endif
+ /* Do tlink without additional code generation now if we didn't
+ do it earlier for scanning purposes. */
+ if (ld1_filter == SCAN_NOTHING)
+ do_tlink (ld1_argv, object_lst);
+
+ if (lto_mode)
+ maybe_run_lto_and_relink (ld1_argv, object_lst, object, false);
+
/* Strip now if it was requested on the command line. */
if (strip_flag)
{
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_file);
#endif
+ post_ld_pass (false);
+
maybe_unlink (c_file);
maybe_unlink (o_file);
return 0;
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
#ifdef COLLECT_EXPORT_LIST
/* On AIX we must call tlink because of possible templates resolution. */
do_tlink (ld2_argv, object_lst);
+
+ if (lto_mode)
+ maybe_run_lto_and_relink (ld2_argv, object_lst, object, false);
#else
/* Otherwise, simply call ld because tlink is already done. */
- fork_execute ("ld", ld2_argv);
+ if (lto_mode)
+ maybe_run_lto_and_relink (ld2_argv, object_lst, object, true);
+ else
+ {
+ fork_execute ("ld", ld2_argv);
+ post_ld_pass (false);
+ }
/* Let scan_prog_file do any final mods (OSF/rose needs this for
constructors/destructors in shared libraries. */
- scan_prog_file (output_file, PASS_SECOND);
+ scan_prog_file (output_file, PASS_SECOND, SCAN_ALL);
#endif
maybe_unlink (c_file);
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)
struct pex_obj *
collect_execute (const char *prog, char **argv, const char *outname,
- const char *errname)
+ const char *errname, int flags)
{
struct pex_obj *pex;
const char *errmsg;
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, PEX_LAST | PEX_SEARCH, argv[0], argv, outname,
+ errmsg = pex_run (pex, flags, argv[0], argv, outname,
errname, &err);
if (errmsg != NULL)
{
if (err != 0)
{
errno = err;
- fatal_perror (errmsg);
+ fatal_error ("%s: %m", _(errmsg));
}
else
- fatal (errmsg);
+ fatal_error (errmsg);
}
- if (response_arg)
- free (response_arg);
+ free (response_arg);
return pex;
}
{
struct pex_obj *pex;
- pex = collect_execute (prog, argv, NULL, NULL);
+ pex = collect_execute (prog, argv, NULL, NULL, PEX_LAST | PEX_SEARCH);
do_wait (prog, pex);
}
\f
notice ("[Leaving %s]\n", file);
}
+/* Call maybe_unlink on the NULL-terminated list, FILE_LIST. */
+
+static void
+maybe_unlink_list (char **file_list)
+{
+ char **tmp = file_list;
+
+ while (*tmp)
+ maybe_unlink (*(tmp++));
+}
+
\f
static long sequence_number = 0;
int frames = (frame_tables.number > 0);
/* Figure out name of output_file, stripping off .so version. */
- p = strrchr (output_file, '/');
- if (p == 0)
- p = output_file;
- else
- p++;
- q = p;
+ q = p = lbasename (output_file);
+
while (q)
{
q = strchr (q,'.');
}
else
{
- if (strncmp (q, SHLIB_SUFFIX, strlen (SHLIB_SUFFIX)) == 0)
+ if (filename_ncmp (q, SHLIB_SUFFIX, strlen (SHLIB_SUFFIX)) == 0)
{
q += strlen (SHLIB_SUFFIX);
break;
\f
#ifdef OBJECT_FORMAT_NONE
-/* Generic version to scan the name list of the loaded program for
- the symbols g++ uses for static constructors and destructors.
+/* Check to make sure the file is an LTO object file. */
- The constructor table begins at __CTOR_LIST__ and contains a count
- of the number of pointers (or -1 if the constructors are built in a
- separate section by the linker), followed by the pointers to the
- constructor functions, terminated with a null pointer. The
- destructor table has the same format, and begins at __DTOR_LIST__. */
+static bool
+maybe_lto_object_file (const char *prog_name)
+{
+ FILE *f;
+ unsigned char buf[4];
+ int i;
+
+ static unsigned char elfmagic[4] = { 0x7f, 'E', 'L', 'F' };
+ static unsigned char coffmagic[2] = { 0x4c, 0x01 };
+ static unsigned char coffmagic_x64[2] = { 0x64, 0x86 };
+ static unsigned char machomagic[4][4] = {
+ { 0xcf, 0xfa, 0xed, 0xfe },
+ { 0xce, 0xfa, 0xed, 0xfe },
+ { 0xfe, 0xed, 0xfa, 0xcf },
+ { 0xfe, 0xed, 0xfa, 0xce }
+ };
+
+ f = fopen (prog_name, "rb");
+ if (f == NULL)
+ return false;
+ if (fread (buf, sizeof (buf), 1, f) != 1)
+ buf[0] = 0;
+ fclose (f);
+
+ if (memcmp (buf, elfmagic, sizeof (elfmagic)) == 0
+ || memcmp (buf, coffmagic, sizeof (coffmagic)) == 0
+ || memcmp (buf, coffmagic_x64, sizeof (coffmagic_x64)) == 0)
+ return true;
+ for (i = 0; i < 4; i++)
+ if (memcmp (buf, machomagic[i], sizeof (machomagic[i])) == 0)
+ return true;
+
+ return false;
+}
+
+/* Generic version to scan the name list of the loaded program for
+ the symbols g++ uses for static constructors and destructors. */
static void
-scan_prog_file (const char *prog_name, enum pass which_pass)
+scan_prog_file (const char *prog_name, scanpass which_pass,
+ scanfilter filter)
{
void (*int_handler) (int);
#ifdef SIGQUIT
int err;
char *p, buf[1024];
FILE *inf;
+ int found_lto = 0;
if (which_pass == PASS_SECOND)
return;
+ /* LTO objects must be in a known format. This check prevents
+ us from accepting an archive containing LTO objects, which
+ gcc cannnot 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, NULL, &err);
+ errmsg = pex_run (pex, 0, nm_file_name, real_nm_argv, NULL, HOST_BIT_BUCKET,
+ &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 nm output");
+ fatal_error ("can't open nm output: %m");
if (debug)
- fprintf (stderr, "\nnm output with constructors/destructors.\n");
+ {
+ if (which_pass == PASS_LTOINFO)
+ fprintf (stderr, "\nnm output with LTO info marker symbol.\n");
+ else
+ fprintf (stderr, "\nnm output with constructors/destructors.\n");
+ }
/* Read each line of nm output. */
while (fgets (buf, sizeof buf, inf) != (char *) 0)
int ch, ch2;
char *name, *end;
+ if (debug)
+ fprintf (stderr, "\t%s\n", buf);
+
+ if (which_pass == PASS_LTOINFO)
+ {
+ if (found_lto)
+ continue;
+
+ /* Look for the LTO info marker symbol, and add filename to
+ the LTO objects list if found. */
+ for (p = buf; (ch = *p) != '\0' && ch != '\n'; p++)
+ if (ch == ' ' && p[1] == '_' && p[2] == '_'
+ && (strncmp (p + (p[3] == '_' ? 2 : 1), "__gnu_lto_v1", 12) == 0)
+ && ISSPACE (p[p[3] == '_' ? 14 : 13]))
+ {
+ add_lto_object (<o_objects, prog_name);
+
+ /* We need to read all the input, so we can't just
+ return here. But we can avoid useless work. */
+ found_lto = 1;
+
+ break;
+ }
+
+ continue;
+ }
+
/* If it contains a constructor or destructor name, add the name
- to the appropriate list. */
+ to the appropriate list unless this is a kind of symbol we're
+ not supposed to even consider. */
for (p = buf; (ch = *p) != '\0' && ch != '\n' && ch != '_'; p++)
if (ch == ' ' && p[1] == 'U' && p[2] == ' ')
switch (is_ctor_dtor (name))
{
case SYM_CTOR:
+ if (! (filter & SCAN_CTOR))
+ break;
if (which_pass != PASS_LIB)
add_to_list (&constructors, name);
break;
case SYM_DTOR:
+ if (! (filter & SCAN_DTOR))
+ break;
if (which_pass != PASS_LIB)
add_to_list (&destructors, name);
break;
case SYM_INIT:
+ 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
break;
case SYM_FINI:
+ 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
break;
case SYM_DWEH:
+ if (! (filter & SCAN_DWEH))
+ break;
if (which_pass != PASS_LIB)
add_to_list (&frame_tables, name);
break;
default: /* not a constructor or destructor */
continue;
}
-
- if (debug)
- fprintf (stderr, "\t%s\n", buf);
}
if (debug)
void (*quit_handler) (int);
#endif
char *real_ldd_argv[4];
- const char **ldd_argv = (const char **) real_ldd_argv;
+ const char **ldd_argv = CONST_CAST2 (const char **, char **, real_ldd_argv);
int argc = 0;
struct pex_obj *pex;
const char *errmsg;
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);
/* 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);
+ scan_prog_file (list->name, PASS_LIB, SCAN_ALL);
}
#endif /* LDD_SUFFIX */
/* 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
#endif
/* COFF version to scan the name list of the loaded program for
- the symbols g++ uses for static constructors and destructors.
-
- The constructor table begins at __CTOR_LIST__ and contains a count
- of the number of pointers (or -1 if the constructors are built in a
- separate section by the linker), followed by the pointers to the
- constructor functions, terminated with a null pointer. The
- destructor table has the same format, and begins at __DTOR_LIST__. */
+ the symbols g++ uses for static constructors and destructors. */
static void
-scan_prog_file (const char *prog_name, enum pass which_pass)
+scan_prog_file (const char *prog_name, scanpass which_pass,
+ scanfilter filter)
{
LDFILE *ldptr = NULL;
int sym_index, sym_count;
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))
{
switch (is_ctor_dtor (name))
{
case SYM_CTOR:
+ if (! (filter & SCAN_CTOR))
+ break;
if (! is_shared)
add_to_list (&constructors, name);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
break;
case SYM_DTOR:
+ if (! (filter & SCAN_DTOR))
+ break;
if (! is_shared)
add_to_list (&destructors, name);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
#ifdef COLLECT_EXPORT_LIST
case SYM_INIT:
+ if (! (filter & SCAN_INIT))
+ break;
#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&constructors, name);
break;
case SYM_FINI:
+ if (! (filter & SCAN_FINI))
+ break;
#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&destructors, name);
#endif
case SYM_DWEH:
+ if (! (filter & SCAN_DWEH))
+ break;
if (! is_shared)
add_to_list (&frame_tables, name);
#if defined (COLLECT_EXPORT_LIST) && !defined (LD_INIT_SWITCH)
}
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. */
for (; list; list = list->next)
{
/* The following lines are needed because path_prefix list
- may contain directories both with trailing '/' and
+ may contain directories both with trailing DIR_SEPARATOR and
without it. */
const char *p = "";
- if (list->prefix[strlen(list->prefix)-1] != '/')
+ if (!IS_DIR_SEPARATOR (list->prefix[strlen(list->prefix)-1]))
p = "/";
for (j = 0; j < 2; j++)
{
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 */
+
+#ifdef COLLECT_RUN_DSYMUTIL
+static int flag_dsym = false;
+static int flag_idsym = false;
+
+static void
+process_args (int *argcp, char **argv) {
+ int i, j;
+ int argc = *argcp;
+ for (i=0; i<argc; ++i)
+ {
+ if (strcmp (argv[i], "-dsym") == 0)
+ {
+ flag_dsym = true;
+ /* Remove the flag, as we handle all processing for it. */
+ j = i;
+ do
+ argv[j] = argv[j+1];
+ while (++j < argc);
+ --i;
+ argc = --(*argcp);
+ }
+ else if (strcmp (argv[i], "-idsym") == 0)
+ {
+ flag_idsym = true;
+ /* Remove the flag, as we handle all processing for it. */
+ j = i;
+ do
+ argv[j] = argv[j+1];
+ while (++j < argc);
+ --i;
+ argc = --(*argcp);
+ }
+ }
+}
+
+static void
+do_dsymutil (const char *output_file) {
+ const char *dsymutil = DSYMUTIL + 1;
+ struct pex_obj *pex;
+ char **real_argv = XCNEWVEC (char *, 3);
+ const char ** argv = CONST_CAST2 (const char **, char **,
+ real_argv);
+
+ argv[0] = dsymutil;
+ argv[1] = output_file;
+ argv[2] = (char *) 0;
+
+ pex = collect_execute (dsymutil, real_argv, NULL, NULL, PEX_LAST | PEX_SEARCH);
+ do_wait (dsymutil, pex);
+}
+
+static void
+post_ld_pass (bool temp_file) {
+ if (!(temp_file && flag_idsym) && !flag_dsym)
+ return;
+
+ do_dsymutil (output_file);
+}
+#else
+static void
+process_args (int *argcp ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) { }
+static void post_ld_pass (bool temp_file ATTRIBUTE_UNUSED) { }
+#endif
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