/* Collect static initialization info into data structures that can be
traversed by C++ initialization and finalization routines.
- Copyright (C) 1992, 93-97, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ 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).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is 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 3, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; 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. */
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include <signal.h>
-#include <sys/stat.h>
-
-#define COLLECT
-
-#include "demangle.h"
-#include "obstack.h"
-#include "gansidecl.h"
-#ifdef __CYGWIN32__
-#include <process.h>
+#if ! defined( SIGCHLD ) && defined( SIGCLD )
+# define SIGCHLD SIGCLD
#endif
-/* Obstack allocation and deallocation routines. */
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-
-#ifdef USG
-#define vfork fork
+#ifndef LIBRARY_PATH_ENV
+#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
-#ifndef WIFSIGNALED
-#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
-#endif
-#ifndef WTERMSIG
-#define WTERMSIG(S) ((S) & 0x7f)
-#endif
-#ifndef WIFEXITED
-#define WIFEXITED(S) (((S) & 0xff) == 0)
-#endif
-#ifndef WEXITSTATUS
-#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
-#endif
+#define COLLECT
-extern char *make_temp_file PROTO ((char *));
+#include "collect2.h"
+#include "collect2-aix.h"
+#include "demangle.h"
+#include "obstack.h"
+#include "intl.h"
+#include "version.h"
\f
/* On certain systems, we have code that works by scanning the object file
directly. But this code uses system-specific header files and library
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
+#ifndef CROSS_AIX_SUPPORT
#undef OBJECT_FORMAT_COFF
-#undef OBJECT_FORMAT_ROSE
+#endif
#undef MD_EXEC_PREFIX
#undef REAL_LD_FILE_NAME
#undef REAL_NM_FILE_NAME
In a cross-compiler, this means you need a cross nm,
but that is not quite as unpleasant as special headers. */
-#if !defined (OBJECT_FORMAT_COFF) && !defined (OBJECT_FORMAT_ROSE)
+#if !defined (OBJECT_FORMAT_COFF)
#define OBJECT_FORMAT_NONE
#endif
#ifdef OBJECT_FORMAT_COFF
+#ifndef CROSS_DIRECTORY_STRUCTURE
#include <a.out.h>
#include <ar.h>
#endif
#include <ldfcn.h>
+#endif
/* Some systems have an ISCOFF macro, but others do not. In some cases
the macro may be wrong. MY_ISCOFF is defined in tm.h files for machines
- that either do not have an ISCOFF macro in /usr/include or for those
+ that either do not have an ISCOFF macro in /usr/include or for those
where it is wrong. */
#ifndef MY_ISCOFF
#endif /* OBJECT_FORMAT_COFF */
-#ifdef OBJECT_FORMAT_ROSE
-
-#ifdef _OSF_SOURCE
-#define USE_MMAP
-#endif
-
-#ifdef USE_MMAP
-#include <sys/mman.h>
-#endif
-
-#include <unistd.h>
-#include <mach_o_format.h>
-#include <mach_o_header.h>
-#include <mach_o_vals.h>
-#include <mach_o_types.h>
-
-#endif /* OBJECT_FORMAT_ROSE */
-
#ifdef OBJECT_FORMAT_NONE
/* Default flags to pass to nm. */
/* Some systems use __main in a way incompatible with its use in gcc, in these
cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
- give the same symbol without quotes for an alternative entry point. You
- must define both, or neither. */
+ give the same symbol without quotes for an alternative entry point. */
#ifndef NAME__MAIN
#define NAME__MAIN "__main"
-#define SYMBOL__MAIN __main
#endif
/* This must match tree.h. */
#define DEFAULT_INIT_PRIORITY 65535
-#if defined (LDD_SUFFIX) || SUNOS4_SHARED_LIBRARIES
+#ifndef COLLECT_SHARED_INIT_FUNC
+#define COLLECT_SHARED_INIT_FUNC(STREAM, FUNC) \
+ fprintf ((STREAM), "void _GLOBAL__DI() {\n\t%s();\n}\n", (FUNC))
+#endif
+#ifndef COLLECT_SHARED_FINI_FUNC
+#define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \
+ fprintf ((STREAM), "void _GLOBAL__DD() {\n\t%s();\n}\n", (FUNC))
+#endif
+
+#ifdef LDD_SUFFIX
#define SCAN_LIBRARIES
#endif
+#ifndef SHLIB_SUFFIX
+#define SHLIB_SUFFIX ".so"
+#endif
+
#ifdef USE_COLLECT2
int do_collecting = 1;
#else
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;
\f
/* Linked lists of constructor and destructor names. */
-struct id
+struct id
{
struct id *next;
int sequence;
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 */
-};
-
-extern char *version_string;
-
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
+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;
+
int debug; /* true if -debug */
-static int shared_obj; /* true if -shared */
+static int shared_obj; /* true if -shared */
-static char *c_file; /* <xxx>.c for constructor/destructor list. */
-static char *o_file; /* <xxx>.o for constructor/destructor list. */
+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 char *export_file; /* <xxx>.x for AIX export list. */
-static char *import_file; /* <xxx>.p for AIX import list. */
+static const char *export_file; /* <xxx>.x for AIX export list. */
#endif
-char *ldout; /* File for ld errors. */
-static char *output_file; /* Output file for ld. */
-static char *nm_file_name; /* pathname of nm */
+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. */
+static const char *nm_file_name; /* pathname of nm */
#ifdef LDD_SUFFIX
-static char *ldd_file_name; /* pathname of ldd (or equivalent) */
+static const char *ldd_file_name; /* pathname of ldd (or equivalent) */
#endif
-static char *strip_file_name; /* pathname of strip */
-char *c_file_name; /* pathname of gcc */
+static const char *strip_file_name; /* pathname of strip */
+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 */
static struct head destructors; /* list of destructors found */
#ifdef COLLECT_EXPORT_LIST
static struct head exports; /* list of exported symbols */
-static struct head imports; /* list of imported symbols */
-static struct head undefined; /* list of undefined symbols */
#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;
-struct obstack permanent_obstack;
char * temporary_firstobj;
-/* Defined in the automatically-generated underscore.c. */
-extern int prepends_underscore;
-
-extern FILE *fdopen ();
-
-#ifndef GET_ENV_PATH_LIST
-#define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
+/* A string that must be prepended to a target OS path in order to find
+ it on the host system. */
+#ifdef TARGET_SYSTEM_ROOT
+static const char *target_system_root = TARGET_SYSTEM_ROOT;
+#else
+static const char *target_system_root = "";
#endif
/* Structure to hold all the directories in which to search for files to
struct prefix_list
{
- char *prefix; /* String to prepend to the path. */
+ const char *prefix; /* String to prepend to the path. */
struct prefix_list *next; /* Next in linked list. */
};
{
struct prefix_list *plist; /* List of prefixes to try */
int max_len; /* Max length of a prefix in PLIST */
- char *name; /* Name of this list (used in config stuff) */
+ const char *name; /* Name of this list (used in config stuff) */
};
#ifdef COLLECT_EXPORT_LIST
-/* Lists to keep libraries to be scanned for global constructors/destructors. */
+/* Lists to keep libraries to be scanned for global constructors/destructors. */
static struct head libs; /* list of libraries */
static struct path_prefix cmdline_lib_dirs; /* directories specified with -L */
static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */
static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs,
&libpath_lib_dirs, NULL};
-static char *libexts[3] = {"a", "so", NULL}; /* possible library extentions */
-#endif
-
-void error PVPROTO((const char *, ...)) ATTRIBUTE_PRINTF_1;
-void fatal PVPROTO((const char *, ...))
- ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
-void fatal_perror PVPROTO((const char *, ...))
- ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
-static char *my_strerror PROTO((int));
-static const char *my_strsignal PROTO((int));
-static void handler PROTO((int));
-static int is_ctor_dtor PROTO((char *));
-static char *find_a_file PROTO((struct path_prefix *, char *));
-static void add_prefix PROTO((struct path_prefix *, char *));
-static void prefix_from_env PROTO((char *, struct path_prefix *));
-static void prefix_from_string PROTO((char *, struct path_prefix *));
-static void do_wait PROTO((char *));
-static void fork_execute PROTO((char *, char **));
-static void maybe_unlink PROTO((char *));
-static void add_to_list PROTO((struct head *, char *));
-static int extract_init_priority PROTO((char *));
-static void sort_ids PROTO((struct head *));
-static void write_list PROTO((FILE *, char *, struct id *));
+#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 {
+ SYM_REGULAR = 0, /* nothing special */
+
+ SYM_CTOR = 1, /* constructor */
+ 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 */
+} 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 *);
+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 *);
+static void write_list (FILE *, const char *, struct id *);
#ifdef COLLECT_EXPORT_LIST
-static void dump_list PROTO((FILE *, char *, struct id *));
+static void dump_list (FILE *, const char *, struct id *);
#endif
#if 0
-static void dump_prefix_list PROTO((FILE *, char *, struct prefix_list *));
+static void dump_prefix_list (FILE *, const char *, struct prefix_list *);
+#endif
+static void write_list_with_asm (FILE *, const char *, struct id *);
+static void write_c_file (FILE *, const char *);
+static void write_c_file_stat (FILE *, const char *);
+#ifndef LD_INIT_SWITCH
+static void write_c_file_glob (FILE *, const char *);
#endif
-static void write_list_with_asm PROTO((FILE *, char *, struct id *));
-static void write_c_file PROTO((FILE *, char *));
-static void scan_prog_file PROTO((char *, enum pass));
#ifdef SCAN_LIBRARIES
-static void scan_libraries PROTO((char *));
+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
-static int is_in_list PROTO((char *, struct id *));
-static void write_export_file PROTO((FILE *));
-static void write_import_file PROTO((FILE *));
-static char *resolve_lib_name PROTO((char *));
-static int use_import_list PROTO((char *));
-static int ignore_library PROTO((char *));
+#if 0
+static int is_in_list (const char *, struct id *);
#endif
-
-char *xcalloc ();
-char *xmalloc ();
-
-\f
-#ifdef NO_DUP2
-int
-dup2 (oldfd, newfd)
- 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;
-}
+static void write_aix_file (FILE *, struct id *);
+static char *resolve_lib_name (const char *);
#endif
+static char *extract_string (const char **);
-static char *
-my_strerror (e)
- int e;
-{
+/* Enumerations describing which pass this is for scanning the
+ program file ... */
-#ifdef HAVE_STRERROR
- return strerror (e);
+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
+};
-#else
+/* This type is used for parameters and variables which hold
+ combinations of the flags in enum scanfilter_masks. */
+typedef int scanfilter;
- static char buffer[30];
- if (!e)
- return "";
+/* Scan the name list of the loaded program for the symbols g++ uses for
+ static constructors and destructors.
- if (e > 0 && e < sys_nerr)
- return sys_errlist[e];
+ 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.
- sprintf (buffer, "Unknown error %d", e);
- return buffer;
-#endif
-}
+ 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);
-static const char *
-my_strsignal (s)
- int s;
-{
-#ifdef HAVE_STRSIGNAL
- return strsignal (s);
-#else
- if (s >= 0 && s < NSIG)
- {
-# ifdef NO_SYS_SIGLIST
- static char buffer[30];
-
- sprintf (buffer, "Unknown signal %d", s);
- return buffer;
-# else
- return sys_siglist[s];
-# endif
- }
- else
- return NULL;
-#endif /* HAVE_STRSIGNAL */
-}
\f
/* Delete tempfiles and exit function. */
void
-collect_exit (status)
- int status;
+collect_exit (int status)
{
if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
#ifdef COLLECT_EXPORT_LIST
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
-
- if (import_file != 0 && import_file[0])
- maybe_unlink (import_file);
#endif
+ if (lto_o_files)
+ maybe_unlink_list (lto_o_files);
+
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
-/* Die when sys call fails. */
+/* Notify user of a non-error. */
+void
+notice (const char *cmsgid, ...)
+{
+ va_list ap;
+
+ va_start (ap, cmsgid);
+ vfprintf (stderr, _(cmsgid), ap);
+ va_end (ap);
+}
+/* Notify user of a non-error, without translating the format string. */
void
-fatal_perror VPROTO((const char * string, ...))
+notice_translated (const char *cmsgid, ...)
{
-#ifndef __STDC__
- const char *string;
-#endif
- int e = errno;
va_list ap;
- VA_START (ap, string);
+ va_start (ap, cmsgid);
+ vfprintf (stderr, cmsgid, ap);
+ va_end (ap);
+}
-#ifndef __STDC__
- string = va_arg (ap, const char *);
-#endif
+/* 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, string, ap);
- fprintf (stderr, ": %s\n", my_strerror (e));
+ vfprintf (stderr, _(cmsgid), ap);
+ fprintf (stderr, ": %s\n", xstrerror (e));
va_end (ap);
collect_exit (FATAL_EXIT_CODE);
/* Just die. */
void
-fatal VPROTO((const char * string, ...))
+fatal (const char * cmsgid, ...)
{
-#ifndef __STDC__
- const char *string;
-#endif
va_list ap;
-
- VA_START (ap, string);
-#ifndef __STDC__
- string = va_arg (ap, const char *);
-#endif
-
+ va_start (ap, cmsgid);
fprintf (stderr, "collect2: ");
- vfprintf (stderr, string, ap);
+ vfprintf (stderr, _(cmsgid), ap);
fprintf (stderr, "\n");
va_end (ap);
/* Write error message. */
void
-error VPROTO((const char * string, ...))
+error (const char * gmsgid, ...)
{
-#ifndef __STDC__
- const char * string;
-#endif
va_list ap;
-
- VA_START (ap, string);
-
-#ifndef __STDC__
- string = va_arg (ap, const char *);
-#endif
+ va_start (ap, gmsgid);
fprintf (stderr, "collect2: ");
- vfprintf (stderr, string, ap);
+ vfprintf (stderr, _(gmsgid), ap);
fprintf (stderr, "\n");
va_end(ap);
}
provide a default entry. */
void
-fancy_abort ()
+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
-handler (signo)
- int signo;
+handler (int signo)
{
if (c_file != 0 && c_file[0])
maybe_unlink (c_file);
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);
-
- if (import_file != 0 && import_file[0])
- maybe_unlink (import_file);
#endif
- signal (signo, SIG_DFL);
- kill (getpid (), signo);
-}
-
-\f
-char *
-xcalloc (size1, size2)
- int size1, size2;
-{
- char *ptr = (char *) calloc (size1, size2);
- if (ptr)
- return ptr;
-
- fatal ("out of memory");
- return (char *) 0;
-}
-
-char *
-xmalloc (size)
- unsigned size;
-{
- char *ptr = (char *) malloc (size);
- if (ptr)
- return ptr;
+ if (lto_o_files)
+ maybe_unlink_list (lto_o_files);
- fatal ("out of memory");
- return (char *) 0;
-}
+ if (response_file)
+ maybe_unlink (response_file);
-char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
-{
- register char *value = (char *) realloc (ptr, size);
- if (value == 0)
- fatal ("virtual memory exhausted");
- return value;
+ signal (signo, SIG_DFL);
+ raise (signo);
}
+\f
int
-file_exists (name)
- char *name;
+file_exists (const char *name)
{
return access (name, R_OK) == 0;
}
-/* Make a copy of a string INPUT with size SIZE. */
-
-char *
-savestring (input, size)
- char *input;
- int size;
-{
- char *output = (char *) xmalloc (size + 1);
- bcopy (input, output, size);
- output[size] = 0;
- return output;
-}
-
/* Parse a reasonable subset of shell quoting syntax. */
static char *
-extract_string (pp)
- char **pp;
+extract_string (const char **pp)
{
- char *p = *pp;
+ const char *p = *pp;
int backquote = 0;
int inside = 0;
obstack_1grow (&temporary_obstack, '\0');
*pp = p;
- return obstack_finish (&temporary_obstack);
+ return XOBFINISH (&temporary_obstack, char *);
}
\f
void
-dump_file (name)
- char *name;
+dump_file (const char *name, FILE *to)
{
FILE *stream = fopen (name, "r");
- int no_demangle = !! getenv ("COLLECT_NO_DEMANGLE");
if (stream == 0)
return;
{
int c;
while (c = getc (stream),
- c != EOF && (ISALNUM (c) || c == '_' || c == '$' || c == '.'))
+ c != EOF && (ISIDNUM (c) || c == '$' || c == '.'))
obstack_1grow (&temporary_obstack, c);
if (obstack_object_size (&temporary_obstack) > 0)
{
- char *word, *p, *result;
+ 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 (*p == '_' && prepends_underscore)
- ++p;
+ 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);
+ 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)
- --diff, putc (' ', stderr);
- while (diff < 0 && c == ' ')
- ++diff, c = getc (stream);
+ while (diff > 0 && c == ' ')
+ --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);
}
\f
-/* Decide whether the given symbol is:
- a constructor (1), a destructor (2), or neither (0). */
+/* Return the kind of symbol denoted by name S. */
-static int
-is_ctor_dtor (s)
- char *s;
+static symkind
+is_ctor_dtor (const char *s)
{
- struct names { char *name; int len; int ret; int two_underscores; };
-
- register struct names *p;
- register int ch;
- register char *orig_s = s;
-
- static struct names special[] = {
-#ifdef NO_DOLLAR_IN_LABEL
-#ifdef NO_DOT_IN_LABEL
- { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, 1, 0 },
- { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, 2, 0 },
- { "GLOBAL__F_", sizeof ("GLOBAL__F_")-1, 5, 0 },
-#else
- { "GLOBAL_.I.", sizeof ("GLOBAL_.I.")-1, 1, 0 },
- { "GLOBAL_.D.", sizeof ("GLOBAL_.D.")-1, 2, 0 },
- { "GLOBAL_.F.", sizeof ("GLOBAL_.F.")-1, 5, 0 },
-#endif
+ struct names { const char *const name; const int len; symkind ret;
+ const int two_underscores; };
+
+ const struct names *p;
+ int ch;
+ const char *orig_s = s;
+
+ static const struct names special[] = {
+#ifndef NO_DOLLAR_IN_LABEL
+ { "GLOBAL__I$", sizeof ("GLOBAL__I$")-1, SYM_CTOR, 0 },
+ { "GLOBAL__D$", sizeof ("GLOBAL__D$")-1, SYM_DTOR, 0 },
#else
- { "GLOBAL_$I$", sizeof ("GLOBAL_$I$")-1, 1, 0 },
- { "GLOBAL_$D$", sizeof ("GLOBAL_$D$")-1, 2, 0 },
- { "GLOBAL_$F$", sizeof ("GLOBAL_$F$")-1, 5, 0 },
-#endif
- { "GLOBAL__FI_", sizeof ("GLOBAL__FI_")-1, 3, 0 },
- { "GLOBAL__FD_", sizeof ("GLOBAL__FD_")-1, 4, 0 },
-#ifdef CFRONT_LOSSAGE /* Do not collect cfront initialization functions.
- cfront has its own linker procedure to collect them;
- if collect2 gets them too, they get collected twice
- when the cfront procedure is run and the compiler used
- for linking happens to be GCC. */
- { "sti__", sizeof ("sti__")-1, 1, 1 },
- { "std__", sizeof ("std__")-1, 2, 1 },
-#endif /* CFRONT_LOSSAGE */
- { NULL, 0, 0, 0 }
+#ifndef NO_DOT_IN_LABEL
+ { "GLOBAL__I.", sizeof ("GLOBAL__I.")-1, SYM_CTOR, 0 },
+ { "GLOBAL__D.", sizeof ("GLOBAL__D.")-1, SYM_DTOR, 0 },
+#endif /* NO_DOT_IN_LABEL */
+#endif /* NO_DOLLAR_IN_LABEL */
+ { "GLOBAL__I_", sizeof ("GLOBAL__I_")-1, SYM_CTOR, 0 },
+ { "GLOBAL__D_", sizeof ("GLOBAL__D_")-1, SYM_DTOR, 0 },
+ { "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 },
+ { NULL, 0, SYM_REGULAR, 0 }
};
while ((ch = *s) == '_')
++s;
if (s == orig_s)
- return 0;
+ return SYM_REGULAR;
for (p = &special[0]; p->len > 0; p++)
{
return p->ret;
}
}
- return 0;
-}
-\f
-/* Routine to add variables to the environment. */
-
-#ifndef HAVE_PUTENV
-
-int
-putenv (str)
- char *str;
-{
-#ifndef VMS /* nor about VMS */
-
- extern char **environ;
- char **old_environ = environ;
- char **envp;
- int num_envs = 0;
- int name_len = 1;
- char *p = str;
- int ch;
-
- while ((ch = *p++) != '\0' && ch != '=')
- name_len++;
-
- if (!ch)
- abort ();
-
- /* Search for replacing an existing environment variable, and
- count the number of total environment variables. */
- for (envp = old_environ; *envp; envp++)
- {
- num_envs++;
- if (!strncmp (str, *envp, name_len))
- {
- *envp = str;
- return 0;
- }
- }
-
- /* Add a new environment variable */
- environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
- *environ = str;
- bcopy ((char *) old_environ, (char *) (environ + 1),
- sizeof (char *) * (num_envs+1));
-
- return 0;
-#endif /* VMS */
+ return SYM_REGULAR;
}
-
-#endif /* HAVE_PUTENV */
\f
-/* By default, colon separates directories in a path. */
-#ifndef PATH_SEPARATOR
-#define PATH_SEPARATOR ':'
-#endif
-
/* We maintain two prefix lists: one from COMPILER_PATH environment variable
and one from the PATH variable. */
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. */
-static char *target_machine = TARGET_MACHINE;
+static const char *const target_machine = TARGET_MACHINE;
#endif
/* Search for NAME using prefix list PPREFIX. We only look for executable
- files.
+ files.
Return 0 if not found, otherwise return its name, allocated with malloc. */
static char *
-find_a_file (pprefix, name)
- struct path_prefix *pprefix;
- char *name;
+find_a_file (struct path_prefix *pprefix, const char *name)
{
char *temp;
struct prefix_list *pl;
if (debug)
fprintf (stderr, "Looking for '%s'\n", name);
-
-#ifdef EXECUTABLE_SUFFIX
- len += strlen (EXECUTABLE_SUFFIX);
+
+#ifdef HOST_EXECUTABLE_SUFFIX
+ len += strlen (HOST_EXECUTABLE_SUFFIX);
#endif
- temp = xmalloc (len);
+ temp = XNEWVEC (char, len);
/* Determine the filename to execute (special case for absolute paths). */
- if (*name == '/'
-#ifdef DIR_SEPARATOR
- || (DIR_SEPARATOR == '\\' && name[1] == ':'
- && (name[2] == DIR_SEPARATOR || name[2] == '/'))
-#endif
- )
+ if (IS_ABSOLUTE_PATH (name))
{
if (access (name, X_OK) == 0)
{
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 (access (temp, X_OK) == 0)
+
+ if (stat (temp, &st) >= 0
+ && ! S_ISDIR (st.st_mode)
+ && access (temp, X_OK) == 0)
return temp;
-#ifdef EXECUTABLE_SUFFIX
+#ifdef HOST_EXECUTABLE_SUFFIX
/* Some systems have a suffix for executable files.
So try appending that. */
- strcat (temp, EXECUTABLE_SUFFIX);
-
- if (access (temp, X_OK) == 0)
+ strcat (temp, HOST_EXECUTABLE_SUFFIX);
+
+ if (stat (temp, &st) >= 0
+ && ! S_ISDIR (st.st_mode)
+ && access (temp, X_OK) == 0)
return temp;
#endif
}
/* Add an entry for PREFIX to prefix list PPREFIX. */
static void
-add_prefix (pprefix, prefix)
- struct path_prefix *pprefix;
- char *prefix;
+add_prefix (struct path_prefix *pprefix, const char *prefix)
{
struct prefix_list *pl, **prev;
int len;
else
prev = &pprefix->plist;
- /* Keep track of the longest prefix */
+ /* Keep track of the longest prefix. */
len = strlen (prefix);
if (len > pprefix->max_len)
pprefix->max_len = len;
- pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
- pl->prefix = savestring (prefix, len);
+ pl = XNEW (struct prefix_list);
+ pl->prefix = xstrdup (prefix);
if (*prev)
pl->next = *prev;
add of the entries to PPREFIX. */
static void
-prefix_from_env (env, pprefix)
- char *env;
- struct path_prefix *pprefix;
+prefix_from_env (const char *env, struct path_prefix *pprefix)
{
- char *p;
- GET_ENV_PATH_LIST (p, env);
+ const char *p;
+ GET_ENVIRONMENT (p, env);
if (p)
prefix_from_string (p, pprefix);
}
static void
-prefix_from_string (p, pprefix)
- char *p;
- struct path_prefix *pprefix;
+prefix_from_string (const char *p, struct path_prefix *pprefix)
{
- char *startp, *endp;
- char *nstore = (char *) xmalloc (strlen (p) + 3);
+ 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)
{
{
strcpy (nstore, "./");
}
- else if (endp[-1] != '/')
+ else if (! IS_DIR_SEPARATOR (endp[-1]))
{
- nstore[endp-startp] = '/';
+ nstore[endp-startp] = DIR_SEPARATOR;
nstore[endp-startp+1] = 0;
}
else
if (debug)
fprintf (stderr, " - add prefix: %s\n", nstore);
-
+
add_prefix (pprefix, nstore);
if (*endp == 0)
break;
else
endp++;
}
+ free (nstore);
}
-\f
-/* Main program. */
-int
-main (argc, argv)
- int argc;
- char *argv[];
+#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)
{
- char *ld_suffix = "ld";
- char *full_ld_suffix = ld_suffix;
- char *real_ld_suffix = "real-ld";
- char *collect_ld_suffix = "collect-ld";
- char *nm_suffix = "nm";
- char *full_nm_suffix = nm_suffix;
- char *gnm_suffix = "gnm";
- char *full_gnm_suffix = gnm_suffix;
-#ifdef LDD_SUFFIX
- char *ldd_suffix = LDD_SUFFIX;
- char *full_ldd_suffix = ldd_suffix;
-#endif
- char *strip_suffix = "strip";
- char *full_strip_suffix = strip_suffix;
- char *gstrip_suffix = "gstrip";
- char *full_gstrip_suffix = gstrip_suffix;
- char *arg;
- FILE *outf;
-#ifdef COLLECT_EXPORT_LIST
- FILE *exportf;
- FILE *importf;
-#endif
- char *ld_file_name;
- char *p;
- char **c_argv;
- char **c_ptr;
- char **ld1_argv = (char **) xcalloc (sizeof (char *), argc+3);
- char **ld1 = ld1_argv;
- char **ld2_argv = (char **) xcalloc (sizeof (char *), argc+6);
- char **ld2 = ld2_argv;
- char **object_lst = (char **) xcalloc (sizeof (char *), argc);
- char **object = object_lst;
- int first_file;
- int num_c_args = argc+9;
+ struct lto_object *n = XNEW (struct lto_object);
+ n->name = name;
+ n->next = NULL;
-#ifdef DEBUG
- debug = 1;
-#endif
+ if (list->last)
+ list->last->next = n;
+ else
+ list->first = n;
- /* Parse command line early for instances of -debug. This allows
- the debug flag to be set before functions like find_a_file()
- are called. */
- {
- int i;
-
- for (i = 1; argv[i] != NULL; i ++)
- if (! strcmp (argv[i], "-debug"))
- debug = 1;
- vflag = debug;
- }
+ list->last = n;
+}
+#endif /* OBJECT_FORMAT_NONE */
-#ifndef DEFAULT_A_OUT_NAME
- output_file = "a.out";
-#else
- output_file = DEFAULT_A_OUT_NAME;
-#endif
- obstack_begin (&temporary_obstack, 0);
- obstack_begin (&permanent_obstack, 0);
- temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0);
+/* 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. */
- current_demangling_style = gnu_demangling;
- p = getenv ("COLLECT_GCC_OPTIONS");
- while (p && *p)
- {
- char *q = extract_string (&p);
- if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
- num_c_args++;
- }
- obstack_free (&temporary_obstack, temporary_firstobj);
- ++num_c_args;
+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);
- c_ptr = c_argv = (char **) xcalloc (sizeof (char *), num_c_args);
+ int num_lto_c_args = 1; /* Allow space for the terminating NULL. */
- if (argc < 2)
- fatal ("no arguments");
+ 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);
-#ifdef SIGQUIT
- if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
- signal (SIGQUIT, handler);
-#endif
- if (signal (SIGINT, SIG_IGN) != SIG_IGN)
- signal (SIGINT, handler);
-#ifdef SIGALRM
- if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
- signal (SIGALRM, handler);
-#endif
-#ifdef SIGHUP
- if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
- signal (SIGHUP, handler);
-#endif
- if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
- signal (SIGSEGV, handler);
-#ifdef SIGBUS
- if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
- signal (SIGBUS, handler);
-#endif
+ /* 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++;
+ }
- /* Extract COMPILER_PATH and PATH into our prefix list. */
- prefix_from_env ("COMPILER_PATH", &cpath);
- prefix_from_env ("PATH", &path);
+ if (lto_objects.first)
+ {
+ const char *opts;
+ char **lto_c_argv;
+ const char **lto_c_ptr;
+ const char *cp;
+ const char **p, **q, **r;
+ const char **lto_o_ptr;
+ struct lto_object *list;
+ char *lto_wrapper = getenv ("COLLECT_LTO_WRAPPER");
+ struct pex_obj *pex;
+ const char *prog = "lto-wrapper";
-#ifdef CROSS_COMPILE
- /* 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. */
+ if (!lto_wrapper)
+ fatal ("COLLECT_LTO_WRAPPER must be set.");
- full_ld_suffix
- = xcalloc (strlen (ld_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_ld_suffix, target_machine);
- strcat (full_ld_suffix, "-");
- strcat (full_ld_suffix, ld_suffix);
+ /* There is at least one object file containing LTO info,
+ so we need to run the LTO back end and relink. */
-#if 0
- full_gld_suffix
- = xcalloc (strlen (gld_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_gld_suffix, target_machine);
- strcat (full_gld_suffix, "-");
- strcat (full_gld_suffix, gld_suffix);
-#endif
+ /* Get compiler options passed down from the parent `gcc' command.
+ These must be passed to the LTO back end. */
+ opts = getenv ("COLLECT_GCC_OPTIONS");
+
+ /* Increment the argument count by the number of inherited options.
+ Some arguments may be filtered out later. Again, an upper bound
+ suffices. */
+
+ cp = opts;
+
+ while (cp && *cp)
+ {
+ extract_string (&cp);
+ num_lto_c_args++;
+ }
+ obstack_free (&temporary_obstack, temporary_firstobj);
+
+ if (debug)
+ num_lto_c_args++;
+
+ /* Increment the argument count by the number of initial
+ arguments added below. */
+ num_lto_c_args += 9;
+
+ 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;
+ *lto_c_ptr++ = c_file_name;
+
+ cp = opts;
+
+ while (cp && *cp)
+ {
+ const char *s = extract_string (&cp);
+
+ /* Pass the option or argument to the wrapper. */
+ *lto_c_ptr++ = xstrdup (s);
+ }
+ obstack_free (&temporary_obstack, temporary_firstobj);
+
+ if (debug)
+ *lto_c_ptr++ = xstrdup ("-debug");
+
+ /* 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;
+
+ /* Save intermediate WPA files in lto1 if debug. */
+ if (debug)
+ putenv (xstrdup ("WPA_SAVE_LTRANS=1"));
+
+ /* Run the LTO back end. */
+ pex = collect_execute (prog, lto_c_argv, NULL, NULL, PEX_SEARCH);
+ {
+ int c;
+ FILE *stream;
+ size_t i, num_files;
+ 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;
+
+ /* 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. */
+ p = CONST_CAST2 (const char **, char **, lto_ld_argv);
+ lto_o_ptr = CONST_CAST2 (const char **, char **, lto_o_files);
+
+ while (*p != NULL)
+ {
+ for (list = lto_objects.first; list; list = list->next)
+ {
+ if (*p == list->name) /* Note test for pointer equality! */
+ {
+ /* Excise argument from linker command line. */
+ if (*lto_o_ptr)
+ {
+ /* Replace first argument with LTO output file. */
+ *p++ = *lto_o_ptr++;
+ }
+ else
+ {
+ /* Move following arguments one position earlier,
+ overwriting the current argument. */
+ q = p;
+ r = p + 1;
+ while (*r != NULL)
+ *q++ = *r++;
+ *q = NULL;
+ }
+
+ /* No need to continue searching the LTO object list. */
+ break;
+ }
+ }
+
+ /* If we didn't find a match, move on to the next argument.
+ Otherwise, P has been set to the correct argument position
+ at which to continue. */
+ if (!list) ++p;
+ }
+
+ /* The code above assumes we will never have more lto output files than
+ input files. Otherwise, we need to resize lto_ld_argv. Check this
+ assumption. */
+ if (*lto_o_ptr)
+ fatal ("too many lto output files");
+
+ /* 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", 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);
+ }
+}
+\f
+/* Main program. */
- full_nm_suffix
- = xcalloc (strlen (nm_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_nm_suffix, target_machine);
- strcat (full_nm_suffix, "-");
- strcat (full_nm_suffix, nm_suffix);
+int
+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";
+ static const char *const gnm_suffix = "gnm";
+#ifdef LDD_SUFFIX
+ static const char *const ldd_suffix = LDD_SUFFIX;
+#endif
+ static const char *const strip_suffix = "strip";
+ static const char *const gstrip_suffix = "gstrip";
- full_gnm_suffix
- = xcalloc (strlen (gnm_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_gnm_suffix, target_machine);
- strcat (full_gnm_suffix, "-");
- strcat (full_gnm_suffix, gnm_suffix);
+#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 =
+ concat (target_machine, "-", gnm_suffix, NULL);
+#ifdef LDD_SUFFIX
+ const char *const full_ldd_suffix =
+ concat (target_machine, "-", ldd_suffix, NULL);
+#endif
+ const char *const full_strip_suffix =
+ concat (target_machine, "-", strip_suffix, NULL);
+ 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
- full_ldd_suffix
- = xcalloc (strlen (ldd_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_ldd_suffix, target_machine);
- strcat (full_ldd_suffix, "-");
- strcat (full_ldd_suffix, ldd_suffix);
-#endif
-
- full_strip_suffix
- = xcalloc (strlen (strip_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_strip_suffix, target_machine);
- strcat (full_strip_suffix, "-");
- strcat (full_strip_suffix, strip_suffix);
-
- full_gstrip_suffix
- = xcalloc (strlen (gstrip_suffix) + strlen (target_machine) + 2, 1);
- strcpy (full_gstrip_suffix, target_machine);
- strcat (full_gstrip_suffix, "-");
- strcat (full_gstrip_suffix, gstrip_suffix);
-#endif /* CROSS_COMPILE */
+ const char *const full_ldd_suffix = ldd_suffix;
+#endif
+ const char *const full_strip_suffix = strip_suffix;
+ const char *const full_gstrip_suffix = gstrip_suffix;
+#endif /* CROSS_DIRECTORY_STRUCTURE */
+
+ const char *arg;
+ FILE *outf;
+#ifdef COLLECT_EXPORT_LIST
+ FILE *exportf;
+#endif
+ const char *ld_file_name;
+ const char *p;
+ char **c_argv;
+ 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;
+ int first_file;
+ int num_c_args;
+ char **old_argv;
+
+ bool use_verbose = false;
+
+ 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");
+
+ /* Suppress demangling by the real linker, which may be broken. */
+ putenv (xstrdup ("COLLECT_NO_DEMANGLE="));
+
+#if defined (COLLECT2_HOST_INITIALIZATION)
+ /* Perform system dependent initialization, if necessary. */
+ COLLECT2_HOST_INITIALIZATION;
+#endif
+
+#ifdef SIGCHLD
+ /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
+ receive the signal. A different setting is inheritable */
+ 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_argv = XCNEWVEC (char *, argc + 4);
+ ld1 = CONST_CAST2 (const char **, char **, ld1_argv);
+ ld2_argv = XCNEWVEC (char *, argc + 11);
+ ld2 = CONST_CAST2 (const char **, char **, ld2_argv);
+ object_lst = XCNEWVEC (char *, argc);
+ object = CONST_CAST2 (const char **, char **, object_lst);
+
+#ifdef DEBUG
+ debug = 1;
+#endif
+
+ /* Parse command line early for instances of -debug. This allows
+ the debug flag to be set before functions like find_a_file()
+ are called. We also look for the -flto or -fwhopr flag to know
+ what LTO mode we are in. */
+ {
+ int i;
+
+ for (i = 1; argv[i] != NULL; i ++)
+ {
+ if (! strcmp (argv[i], "-debug"))
+ debug = 1;
+ else if (! strcmp (argv[i], "-flto") && ! use_plugin)
+ {
+ use_verbose = true;
+ lto_mode = LTO_MODE_LTO;
+ }
+ else if (! strcmp (argv[i], "-fwhopr") && ! use_plugin)
+ {
+ use_verbose = true;
+ lto_mode = LTO_MODE_WHOPR;
+ }
+ else if (! strcmp (argv[i], "-plugin"))
+ {
+ use_plugin = true;
+ use_verbose = 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;
+ }
+
+#ifndef DEFAULT_A_OUT_NAME
+ output_file = "a.out";
+#else
+ output_file = DEFAULT_A_OUT_NAME;
+#endif
+
+ obstack_begin (&temporary_obstack, 0);
+ temporary_firstobj = (char *) obstack_alloc (&temporary_obstack, 0);
+
+#ifndef HAVE_LD_DEMANGLE
+ current_demangling_style = auto_demangling;
+#endif
+ p = getenv ("COLLECT_GCC_OPTIONS");
+ while (p && *p)
+ {
+ const char *q = extract_string (&p);
+ if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
+ num_c_args++;
+ }
+ obstack_free (&temporary_obstack, temporary_firstobj);
+
+ /* -fno-profile-arcs -fno-test-coverage -fno-branch-probabilities
+ -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");
+
+#ifdef SIGQUIT
+ if (signal (SIGQUIT, SIG_IGN) != SIG_IGN)
+ signal (SIGQUIT, handler);
+#endif
+ if (signal (SIGINT, SIG_IGN) != SIG_IGN)
+ signal (SIGINT, handler);
+#ifdef SIGALRM
+ if (signal (SIGALRM, SIG_IGN) != SIG_IGN)
+ signal (SIGALRM, handler);
+#endif
+#ifdef SIGHUP
+ if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
+ signal (SIGHUP, handler);
+#endif
+ if (signal (SIGSEGV, SIG_IGN) != SIG_IGN)
+ signal (SIGSEGV, handler);
+#ifdef SIGBUS
+ if (signal (SIGBUS, SIG_IGN) != SIG_IGN)
+ signal (SIGBUS, handler);
+#endif
+
+ /* Extract COMPILER_PATH and PATH into our prefix list. */
+ prefix_from_env ("COMPILER_PATH", &cpath);
+ prefix_from_env ("PATH", &path);
/* Try to discover a valid linker/nm/strip to use. */
/* 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_file_name = getenv ("COLLECT_GCC");
if (c_file_name == 0)
{
-#ifdef CROSS_COMPILE
- c_file_name = xcalloc (sizeof ("gcc-") + strlen (target_machine) + 1, 1);
- strcpy (c_file_name, target_machine);
- strcat (c_file_name, "-gcc");
+#ifdef CROSS_DIRECTORY_STRUCTURE
+ c_file_name = concat (target_machine, "-gcc", NULL);
#else
c_file_name = "gcc";
#endif
o_file = make_temp_file (".o");
#ifdef COLLECT_EXPORT_LIST
export_file = make_temp_file (".x");
- import_file = make_temp_file (".p");
#endif
ldout = make_temp_file (".ld");
+ lderrout = make_temp_file (".le");
*c_ptr++ = c_file_name;
*c_ptr++ = "-x";
*c_ptr++ = "c";
add_prefix (&libpath_lib_dirs, "/usr/lib");
#endif
- /* Get any options that the upper GCC wants to pass to the sub-GCC.
+ /* Get any options that the upper GCC wants to pass to the sub-GCC.
AIX support needs to know if -shared has been specified before
parsing commandline arguments. */
p = getenv ("COLLECT_GCC_OPTIONS");
while (p && *p)
{
- char *q = extract_string (&p);
+ const char *q = extract_string (&p);
if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
- *c_ptr++ = obstack_copy0 (&permanent_obstack, q, strlen (q));
+ *c_ptr++ = xstrdup (q);
if (strcmp (q, "-EL") == 0 || strcmp (q, "-EB") == 0)
- *c_ptr++ = obstack_copy0 (&permanent_obstack, q, strlen (q));
- if (strncmp (q, "-shared", sizeof ("-shared") - 1) == 0)
+ *c_ptr++ = xstrdup (q);
+ if (strcmp (q, "-shared") == 0)
shared_obj = 1;
+ if (*q == '-' && q[1] == 'B')
+ {
+ *c_ptr++ = xstrdup (q);
+ if (q[2] == 0)
+ {
+ q = extract_string (&p);
+ *c_ptr++ = xstrdup (q);
+ }
+ }
+ if (use_verbose && *q == '-' && q[1] == 'v' && q[2] == 0)
+ {
+ /* Turn on trace in collect2 if needed. */
+ vflag = 1;
+ }
}
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";
+ *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;
- if (arg[2] == '6' && arg[3] == '4')
- aix64_flag = 1;
- break;
-#endif
-
case 'd':
if (!strcmp (arg, "-debug"))
{
ld1--;
ld2--;
}
+ if (!strcmp (arg, "-dynamic-linker") && argv[1])
+ {
+ ++argv;
+ *ld1++ = *ld2++ = *argv;
+ }
break;
+ case 'f':
+ if (strcmp (arg, "-flto") == 0 || strcmp (arg, "-fwhopr") == 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
+ }
+ break;
+
case 'l':
if (first_file)
{
}
#ifdef COLLECT_EXPORT_LIST
{
- /* Resolving full library name. */
- char *s = resolve_lib_name (arg+2);
-
- /* If we will use an import list for this library,
- we should exclude it from ld args. */
- if (use_import_list (s))
- {
- ld1--;
- ld2--;
- }
+ /* Resolving full library name. */
+ const char *s = resolve_lib_name (arg+2);
/* Saving a full library name. */
add_to_list (&libs, s);
#ifdef COLLECT_EXPORT_LIST
/* Saving directories where to search for libraries. */
- 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':
if (arg[2] == '\0')
output_file = *ld1++ = *ld2++ = *++argv;
- else
+ else if (1
+#ifdef SWITCHES_NEED_SPACES
+ && ! strchr (SWITCHES_NEED_SPACES, arg[1])
+#endif
+ )
+
output_file = &arg[2];
break;
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--;
+ }
+ else if (strncmp (arg, "--sysroot=", 10) == 0)
+ target_system_root = arg + 10;
+ break;
}
}
- else if ((p = rindex (arg, '.')) != (char *) 0
+ else if ((p = strrchr (arg, '.')) != (char *) 0
&& (strcmp (p, ".o") == 0 || strcmp (p, ".a") == 0
- || strcmp (p, ".so") == 0))
+ || strcmp (p, ".so") == 0 || strcmp (p, ".lo") == 0
+ || strcmp (p, ".obj") == 0))
{
if (first_file)
{
*ld2++ = arg;
}
}
- if (p[1] == 'o')
+ if (p[1] == 'o' || p[1] == 'l')
*object++ = arg;
#ifdef COLLECT_EXPORT_LIST
/* libraries can be specified directly, i.e. without -l flag. */
- else
- {
- /* If we will use an import list for this library,
- we should exclude it from ld args. */
- if (use_import_list (arg))
- {
- ld1--;
- ld2--;
- }
-
+ else
+ {
/* Saving a full library name. */
- add_to_list (&libs, arg);
- }
+ add_to_list (&libs, arg);
+ }
#endif
}
}
}
/* The AIX linker will discard static constructors in object files if
- nothing else in the file is referenced, so look at them first. */
- {
- char **export_object_lst = object_lst;
- while (export_object_lst < object)
- scan_prog_file (*export_object_lst++, PASS_OBJ);
- }
+ 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_CAST2 (const char **, char **, object_lst);
+
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);
- }
- {
- char *buf1 = alloca (strlen (export_file) + 5);
- char *buf2 = alloca (strlen (import_file) + 5);
- sprintf (buf1, "-bE:%s", export_file);
- sprintf (buf2, "-bI:%s", import_file);
- *ld1++ = buf1;
- *ld2++ = buf1;
- *ld1++ = buf2;
- *ld2++ = buf2;
- exportf = fopen (export_file, "w");
- if (exportf == (FILE *) 0)
- fatal_perror ("%s", export_file);
- write_export_file (exportf);
- if (fclose (exportf))
- fatal_perror ("closing %s", export_file);
- importf = fopen (import_file, "w");
- if (importf == (FILE *) 0)
- fatal_perror ("%s", import_file);
- write_import_file (importf);
- if (fclose (importf))
- fatal_perror ("closing %s", import_file);
+ scan_prog_file (list->name, PASS_FIRST, this_filter);
+
+ ld1_filter = ld1_filter & ~this_filter;
}
+
+ if (exports.first)
+ {
+ char *buf = concat ("-bE:", export_file, NULL);
+
+ *ld1++ = buf;
+ *ld2++ = buf;
+
+ exportf = fopen (export_file, "w");
+ if (exportf == (FILE *) 0)
+ fatal_perror ("fopen %s", export_file);
+ write_aix_file (exportf, exports.first);
+ if (fclose (exportf))
+ fatal_perror ("fclose %s", export_file);
+ }
#endif
*c_ptr++ = c_file;
- *object = *c_ptr = *ld1 = (char *) 0;
+ *c_ptr = *ld1 = *object = (char *) 0;
if (vflag)
{
- fprintf (stderr, "collect2 version %s", version_string);
+ notice ("collect2 version %s", version_string);
#ifdef TARGET_VERSION
TARGET_VERSION;
#endif
if (debug)
{
- char *ptr;
+ const char *ptr;
fprintf (stderr, "ld_file_name = %s\n",
(ld_file_name ? ld_file_name : "not found"));
fprintf (stderr, "c_file_name = %s\n",
if (ptr)
fprintf (stderr, "COMPILER_PATH = %s\n", ptr);
- ptr = getenv ("LIBRARY_PATH");
+ ptr = getenv (LIBRARY_PATH_ENV);
if (ptr)
- fprintf (stderr, "LIBRARY_PATH = %s\n", ptr);
+ fprintf (stderr, "%-20s= %s\n", LIBRARY_PATH_ENV, ptr);
fprintf (stderr, "\n");
}
/* Load the program, searching all libraries and attempting to provide
- undefined symbols from repository information. */
+ undefined symbols from repository information.
- /* On AIX we do this later. */
-#ifndef COLLECT_EXPORT_LIST
- do_tlink (ld1_argv, object_lst);
-#endif
-
- /* 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
- )
- {
+ {
+ 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);
+
+ if (early_exit)
+ {
#ifdef COLLECT_EXPORT_LIST
- /* But make sure we delete the export file we may have created. */
- if (export_file != 0 && export_file[0])
- maybe_unlink (export_file);
- if (import_file != 0 && import_file[0])
- maybe_unlink (import_file);
+ /* 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)
+ maybe_run_lto_and_relink (ld1_argv, object_lst, object, 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 done scanning 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)
{
- fprintf (stderr, "%d constructor(s) found\n", constructors.number);
- fprintf (stderr, "%d destructor(s) found\n", destructors.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
- /* Doing 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)
{
- char **strip_argv = (char **) xcalloc (sizeof (char *), 3);
+ char **real_strip_argv = XCNEWVEC (char *, 3);
+ const char ** strip_argv = CONST_CAST2 (const char **, char **,
+ real_strip_argv);
+
strip_argv[0] = strip_file_name;
strip_argv[1] = output_file;
strip_argv[2] = (char *) 0;
- fork_execute ("strip", strip_argv);
+ fork_execute ("strip", real_strip_argv);
}
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_file);
- maybe_unlink (import_file);
#endif
maybe_unlink (c_file);
maybe_unlink (o_file);
return 0;
}
- /* Sort ctor and dtor lists by priority. */
+ /* Sort ctor and dtor lists by priority. */
sort_ids (&constructors);
sort_ids (&destructors);
maybe_unlink(output_file);
outf = fopen (c_file, "w");
if (outf == (FILE *) 0)
- fatal_perror ("%s", c_file);
+ fatal_perror ("fopen %s", c_file);
write_c_file (outf, c_file);
if (fclose (outf))
- fatal_perror ("closing %s", c_file);
+ fatal_perror ("fclose %s", c_file);
/* Tell the linker that we have initializer and finalizer functions. */
#ifdef LD_INIT_SWITCH
+#ifdef COLLECT_EXPORT_LIST
+ *ld2++ = concat (LD_INIT_SWITCH, ":", initname, ":", fininame, NULL);
+#else
*ld2++ = LD_INIT_SWITCH;
*ld2++ = initname;
*ld2++ = LD_FINI_SWITCH;
*ld2++ = fininame;
#endif
- *ld2 = (char*) 0;
+#endif
#ifdef COLLECT_EXPORT_LIST
if (shared_obj)
{
+ /* If we did not add export flag to link arguments before, add it to
+ second link phase now. No new exports should have been added. */
+ 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 ("%s", export_file);
- write_export_file (exportf);
+ fatal_perror ("fopen %s", export_file);
+ write_aix_file (exportf, exports.first);
if (fclose (exportf))
- fatal_perror ("closing %s", export_file);
+ fatal_perror ("fclose %s", export_file);
}
#endif
+ /* End of arguments to second link phase. */
+ *ld2 = (char*) 0;
+
if (debug)
{
fprintf (stderr, "\n========== output_file = %s, c_file = %s\n",
fprintf (stderr, "========== end of c_file\n\n");
#ifdef COLLECT_EXPORT_LIST
fprintf (stderr, "\n========== export_file = %s\n", export_file);
- write_export_file (stderr);
+ write_aix_file (stderr, exports.first);
fprintf (stderr, "========== end of export_file\n\n");
#endif
}
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);
+
+ 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);
+ /* Otherwise, simply call ld because tlink is already done. */
+ if (lto_mode)
+ maybe_run_lto_and_relink (ld2_argv, object_lst, object, true);
+ else
+ fork_execute ("ld", ld2_argv);
/* 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);
-#endif
+ scan_prog_file (output_file, PASS_SECOND, SCAN_ALL);
+#endif
maybe_unlink (c_file);
maybe_unlink (o_file);
#ifdef COLLECT_EXPORT_LIST
maybe_unlink (export_file);
- maybe_unlink (import_file);
#endif
return 0;
}
\f
-/* Wait for a process to finish, and exit if a non-zero status is found. */
+/* Wait for a process to finish, and exit if a nonzero status is found. */
int
-collect_wait (prog)
- char *prog;
+collect_wait (const char *prog, struct pex_obj *pex)
{
int status;
- wait (&status);
+ if (!pex_get_status (pex, 1, &status))
+ fatal_perror ("can't get program status");
+ pex_free (pex);
+
if (status)
{
if (WIFSIGNALED (status))
{
int sig = WTERMSIG (status);
error ("%s terminated with signal %d [%s]%s",
- prog,
- sig,
- my_strsignal(sig),
- (status & 0200) ? ", core dumped" : "");
-
+ prog, sig, strsignal(sig),
+ WCOREDUMP(status) ? ", core dumped" : "");
collect_exit (FATAL_EXIT_CODE);
}
}
static void
-do_wait (prog)
- 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
-/* Fork and execute a program, and wait for the reply. */
+/* Execute a program, and wait for the reply. */
-void
-collect_execute (prog, argv, redir)
- char *prog;
- char **argv;
- char *redir;
+struct pex_obj *
+collect_execute (const char *prog, char **argv, const char *outname,
+ const char *errname, int flags)
{
- int pid;
+ 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)
{
char **p_argv;
- char *str;
+ const char *str;
if (argv[0])
fprintf (stderr, "%s", argv[0]);
else
- fprintf (stderr, "[cannot find %s]", prog);
+ notice ("[cannot find %s]", prog);
for (p_argv = &argv[1]; (str = *p_argv) != (char *) 0; p_argv++)
fprintf (stderr, " %s", str);
since we might not end up needing something that we could not find. */
if (argv[0] == 0)
- fatal ("cannot find `%s'", prog);
+ fatal ("cannot find '%s'", prog);
-#ifndef __CYGWIN32__
- pid = vfork ();
- if (pid == -1)
- {
-#ifdef vfork
- fatal_perror ("fork");
-#else
- fatal_perror ("vfork");
-#endif
- }
+ pex = pex_init (0, "collect2", NULL);
+ if (pex == NULL)
+ fatal_perror ("pex_init failed");
- if (pid == 0) /* child context */
+ errmsg = pex_run (pex, flags, argv[0], argv, outname,
+ errname, &err);
+ if (errmsg != NULL)
{
- if (redir)
+ if (err != 0)
{
- unlink (redir);
- if (freopen (redir, "a", stdout) == NULL)
- fatal_perror ("redirecting stdout: %s", redir);
- if (freopen (redir, "a", stderr) == NULL)
- fatal_perror ("redirecting stderr: %s", redir);
+ errno = err;
+ fatal_perror (errmsg);
}
-
- execvp (argv[0], argv);
- fatal_perror ("executing %s", prog);
+ else
+ fatal (errmsg);
}
-#else
- pid = _spawnvp (_P_NOWAIT, argv[0], argv);
- if (pid == -1)
- fatal ("spawnvp failed");
-#endif
+
+ if (response_arg)
+ free (response_arg);
+
+ return pex;
}
static void
-fork_execute (prog, argv)
- char *prog;
- char **argv;
+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, PEX_LAST | PEX_SEARCH);
+ do_wait (prog, pex);
}
\f
/* Unlink a file unless we are debugging. */
static void
-maybe_unlink (file)
- char *file;
+maybe_unlink (const char *file)
{
if (!debug)
- unlink (file);
+ unlink_if_ordinary (file);
else
- fprintf (stderr, "[Leaving %s]\n", file);
+ 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
/* Add a name to a linked list. */
static void
-add_to_list (head_ptr, name)
- struct head *head_ptr;
- char *name;
+add_to_list (struct head *head_ptr, const char *name)
{
struct id *newid
= (struct id *) xcalloc (sizeof (struct id) + strlen (name), 1);
looks like "_GLOBAL_.I.12345.foo". */
static int
-extract_init_priority (name)
- char *name;
+extract_init_priority (const char *name)
{
int pos = 0, pri;
++pos;
pos += 10; /* strlen ("GLOBAL__X_") */
- /* Extract init_p number from ctor/dtor name. */
+ /* Extract init_p number from ctor/dtor name. */
pri = atoi (name + pos);
return pri ? pri : DEFAULT_INIT_PRIORITY;
}
ctors will be run from right to left, dtors from left to right. */
static void
-sort_ids (head_ptr)
- struct head *head_ptr;
+sort_ids (struct head *head_ptr)
{
/* id holds the current element to insert. id_next holds the next
element to insert. id_ptr iterates through the already sorted elements
|| 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;
/* Write: `prefix', the names on list LIST, `suffix'. */
static void
-write_list (stream, prefix, list)
- FILE *stream;
- char *prefix;
- struct id *list;
+write_list (FILE *stream, const char *prefix, struct id *list)
{
while (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
static int
-is_in_list (prefix, list)
- char *prefix;
- struct id *list;
+is_in_list (const char *prefix, struct id *list)
{
while (list)
{
return 0;
}
#endif
+#endif /* COLLECT_EXPORT_LIST */
/* Added for debugging purpose. */
#ifdef COLLECT_EXPORT_LIST
static void
-dump_list (stream, prefix, list)
- FILE *stream;
- char *prefix;
- struct id *list;
+dump_list (FILE *stream, const char *prefix, struct id *list)
{
while (list)
{
#if 0
static void
-dump_prefix_list (stream, prefix, list)
- FILE *stream;
- char *prefix;
- struct prefix_list *list;
+dump_prefix_list (FILE *stream, const char *prefix, struct prefix_list *list)
{
while (list)
{
#endif
static void
-write_list_with_asm (stream, prefix, list)
- FILE *stream;
- char *prefix;
- struct id *list;
+write_list_with_asm (FILE *stream, const char *prefix, struct id *list)
{
while (list)
{
object), along with the functions to execute them. */
static void
-write_c_file_stat (stream, name)
- FILE *stream;
- char *name;
+write_c_file_stat (FILE *stream, const char *name ATTRIBUTE_UNUSED)
{
- char *prefix, *p, *q;
+ const char *p, *q;
+ char *prefix, *r;
int frames = (frame_tables.number > 0);
/* Figure out name of output_file, stripping off .so version. */
- p = rindex (output_file, '/');
+ p = strrchr (output_file, '/');
if (p == 0)
- p = (char *) output_file;
+ p = output_file;
else
p++;
q = p;
while (q)
{
- q = index (q,'.');
+ q = strchr (q,'.');
if (q == 0)
{
q = p + strlen (p);
}
else
{
- if (strncmp (q, ".so", 3) == 0)
+ if (strncmp (q, SHLIB_SUFFIX, strlen (SHLIB_SUFFIX)) == 0)
{
- q += 3;
+ q += strlen (SHLIB_SUFFIX);
break;
}
else
}
}
/* 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 (q = prefix; *q; q++)
- if (!ISALNUM ((unsigned char)*q))
- *q = '_';
+ for (r = prefix; *r; r++)
+ if (!ISALNUM ((unsigned char)*r))
+ *r = '_';
if (debug)
- fprintf (stderr, "\nwrite_c_file - output name is %s, prefix is %s\n",
- output_file, prefix);
-
-#define INIT_NAME_FORMAT "_GLOBAL__FI_%s"
- initname = xmalloc (strlen (prefix) + sizeof (INIT_NAME_FORMAT) - 2);
- sprintf (initname, INIT_NAME_FORMAT, prefix);
+ notice ("\nwrite_c_file - output name is %s, prefix is %s\n",
+ output_file, prefix);
-#define FINI_NAME_FORMAT "_GLOBAL__FD_%s"
- fininame = xmalloc (strlen (prefix) + sizeof (FINI_NAME_FORMAT) - 2);
- sprintf (fininame, FINI_NAME_FORMAT, prefix);
+ initname = concat ("_GLOBAL__FI_", prefix, NULL);
+ fininame = concat ("_GLOBAL__FD_", prefix, NULL);
free (prefix);
- /* Write the tables as C code */
+ /* Write the tables as C code. */
fprintf (stream, "static int count;\n");
fprintf (stream, "typedef void entry_pt();\n");
if (shared_obj)
{
- fprintf (stream, "void _GLOBAL__DI() {\n\t%s();\n}\n", initname);
- fprintf (stream, "void _GLOBAL__DD() {\n\t%s();\n}\n", fininame);
+ COLLECT_SHARED_INIT_FUNC(stream, initname);
+ COLLECT_SHARED_FINI_FUNC(stream, fininame);
}
}
#ifndef LD_INIT_SWITCH
static void
-write_c_file_glob (stream, name)
- FILE *stream;
- char *name;
+write_c_file_glob (FILE *stream, const char *name ATTRIBUTE_UNUSED)
{
- /* Write the tables as C code */
+ /* Write the tables as C code. */
int frames = (frame_tables.number > 0);
fprintf (stream, "typedef void entry_pt();\n\n");
-
+
write_list_with_asm (stream, "extern entry_pt ", constructors.first);
if (frames)
#endif /* ! LD_INIT_SWITCH */
static void
-write_c_file (stream, name)
- FILE *stream;
- char *name;
+write_c_file (FILE *stream, const char *name)
{
- fprintf (stream, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
#ifndef LD_INIT_SWITCH
if (! shared_obj)
write_c_file_glob (stream, name);
else
#endif
write_c_file_stat (stream, name);
- fprintf (stream, "#ifdef __cplusplus\n}\n#endif\n");
}
#ifdef COLLECT_EXPORT_LIST
static void
-write_export_file (stream)
- FILE *stream;
-{
- struct id *list = exports.first;
- for (; list; list = list->next)
- fprintf (stream, "%s\n", list->name);
-}
-
-static void
-write_import_file (stream)
- FILE *stream;
+write_aix_file (FILE *stream, struct id *list)
{
- struct id *list = imports.first;
- fprintf (stream, "%s\n", "#! .");
for (; list; list = list->next)
- fprintf (stream, "%s\n", list->name);
+ {
+ fputs (list->name, stream);
+ putc ('\n', stream);
+ }
}
#endif
\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 ELF file. LTO objects must
+ be in ELF format. */
+
+static bool
+is_elf (const char *prog_name)
+{
+ FILE *f;
+ char buf[4];
+ static char magic[4] = { 0x7f, 'E', 'L', 'F' };
+
+ f = fopen (prog_name, "r");
+ if (f == NULL)
+ return false;
+ if (fread (buf, sizeof (buf), 1, f) != 1)
+ buf[0] = 0;
+ fclose (f);
+ return memcmp (buf, magic, sizeof (magic)) == 0;
+}
- 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__. */
+/* 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 (prog_name, which_pass)
- char *prog_name;
- enum pass which_pass;
+scan_prog_file (const char *prog_name, scanpass which_pass,
+ scanfilter filter)
{
- void (*int_handler) ();
- void (*quit_handler) ();
- char *nm_argv[4];
- int pid;
+ void (*int_handler) (int);
+#ifdef SIGQUIT
+ void (*quit_handler) (int);
+#endif
+ char *real_nm_argv[4];
+ const char **nm_argv = CONST_CAST2 (const char **, 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;
+ int found_lto = 0;
if (which_pass == PASS_SECOND)
return;
+ /* LTO objects must be in ELF format. This check prevents
+ us from accepting an archive containing LTO objects, which
+ gcc cannnot currently handle. */
+ if (which_pass == PASS_LTOINFO && !is_elf (prog_name))
+ return;
+
/* 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)
{
- char **p_argv;
- char *str;
+ const char **p_argv;
+ const char *str;
for (p_argv = &nm_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
fprintf (stderr, " %s", str);
fflush (stdout);
fflush (stderr);
- /* Spawn child nm on pipe */
- pid = vfork ();
- if (pid == -1)
- {
-#ifdef vfork
- fatal_perror ("fork");
-#else
- fatal_perror ("vfork");
-#endif
- }
+ 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, HOST_BIT_BUCKET,
+ &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, nm_argv);
- fatal_perror ("executing %s", nm_file_name);
+ if (err != 0)
+ {
+ errno = err;
+ fatal_perror (errmsg);
+ }
+ else
+ fatal (errmsg);
}
- /* Parent context from here on. */
- int_handler = (void (*) ())signal (SIGINT, SIG_IGN);
+ int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
- quit_handler = (void (*) ())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 nm output");
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 == ' '
+ && (strncmp (p + 1, "__gnu_lto_v1", 12) == 0)
+ && ISSPACE (p[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] == ' ')
if (ch != '_')
continue;
-
+
name = p;
/* Find the end of the symbol name.
Do not include `|', because Encore nm can tack that on the end. */
*end = '\0';
switch (is_ctor_dtor (name))
{
- case 1:
+ case SYM_CTOR:
+ if (! (filter & SCAN_CTOR))
+ break;
if (which_pass != PASS_LIB)
add_to_list (&constructors, name);
break;
- case 2:
+ case SYM_DTOR:
+ if (! (filter & SCAN_DTOR))
+ break;
if (which_pass != PASS_LIB)
add_to_list (&destructors, name);
break;
- case 3:
+ case SYM_INIT:
+ if (! (filter & SCAN_INIT))
+ break;
if (which_pass != PASS_LIB)
fatal ("init function found in object %s", prog_name);
#ifndef LD_INIT_SWITCH
#endif
break;
- case 4:
+ case SYM_FINI:
+ if (! (filter & SCAN_FINI))
+ break;
if (which_pass != PASS_LIB)
fatal ("fini function found in object %s", prog_name);
#ifndef LD_FINI_SWITCH
#endif
break;
- case 5:
+ 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)
fprintf (stderr, "\n");
- if (fclose (inf) != 0)
- fatal_perror ("fclose of pipe");
-
- 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 (name)
- 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 == -1)
- fatal ("unable to mmap file '%s'", name);
-
- close (fp);
-}
-
-/* Helpers for locatelib. */
-
-static char *libname;
-
-static int
-libselect (d)
- 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 (d1, d2)
- struct direct **d1, **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 a 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 a 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 (name)
- char *name;
-{
- static char **l;
- static int cnt;
- char buf[MAXPATHLEN];
- char *p, *q;
- 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 = (char *) malloc (strlen (ld_rules) + 1);
- strcpy (ldr, ld_rules);
- }
- p = getenv ("LD_LIBRARY_PATH");
- q = 0;
- if (p)
- {
- cnt++;
- for (q = p ; *q != 0; q++)
- if (*q == ':')
- cnt++;
- q = (char *) malloc (strlen (p) + 1);
- strcpy (q, p);
- }
- l = (char **) malloc ((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)
- fprintf (stderr, "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 (prog_name)
- 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)
- fprintf (stderr, "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
the output file depends upon and their initialization/finalization
routines, if any. */
-static void
-scan_libraries (prog_name)
- char *prog_name;
+static void
+scan_libraries (const char *prog_name)
{
static struct head libraries; /* list of shared libraries found */
struct id *list;
- void (*int_handler) ();
- void (*quit_handler) ();
- char *ldd_argv[4];
- int pid;
+ void (*int_handler) (int);
+#ifdef SIGQUIT
+ void (*quit_handler) (int);
+#endif
+ char *real_ldd_argv[4];
+ const char **ldd_argv = CONST_CAST2 (const char **, 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)
{
- char **p_argv;
- char *str;
+ const char **p_argv;
+ const char *str;
for (p_argv = &ldd_argv[0]; (str = *p_argv) != (char *) 0; p_argv++)
fprintf (stderr, " %s", str);
fflush (stdout);
fflush (stderr);
- /* Spawn child ldd on pipe */
- pid = vfork ();
- if (pid == -1)
- {
-#ifdef vfork
- fatal_perror ("fork");
-#else
- fatal_perror ("vfork");
-#endif
- }
+ 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, ldd_argv);
- fatal_perror ("executing %s", ldd_file_name);
+ if (err != 0)
+ {
+ errno = err;
+ fatal_perror (errmsg);
+ }
+ else
+ fatal (errmsg);
}
- /* Parent context from here on. */
- int_handler = (void (*) ()) signal (SIGINT, SIG_IGN);
+ int_handler = (void (*) (int)) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
- quit_handler = (void (*) ()) 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)
- fprintf (stderr, "\nldd output with constructors/destructors.\n");
+ notice ("\nldd output with constructors/destructors.\n");
/* Read each line of ldd output. */
while (fgets (buf, sizeof buf, inf) != (char *) 0)
{
- int ch, ch2;
+ int ch2;
char *name, *end, *p = buf;
/* Extract names of libraries and add to list. */
fatal ("dynamic dependency %s not found", buf);
/* Find the end of the symbol name. */
- for (end = p;
+ for (end = p;
(ch2 = *end) != '\0' && ch2 != '\n' && !ISSPACE (ch2) && ch2 != '|';
end++)
continue;
*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 of pipe");
-
- 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);
+ scan_prog_file (list->name, PASS_LIB, SCAN_ALL);
}
#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_OK_SYMBOL(X) ((X).st == stProc && (X).sc == scText)
+# 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)
+
#else
+
# 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) && \
- (((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
+
+/* 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))
+#else
# define GCC_CHECK_HDR(X) \
((HEADER (X).f_magic == U802TOCMAGIC && ! aix64_flag) \
|| (HEADER (X).f_magic == 0757 && aix64_flag))
#endif
-extern char *ldgetname ();
+#endif
-/* COFF version to scan the name list of the loaded program for
- the symbols g++ uses for static constructors and destructors.
+#ifdef COLLECT_EXPORT_LIST
+/* Array of standard AIX libraries which should not
+ be scanned for ctors/dtors. */
+static const char *const aix_std_libs[] = {
+ "/unix",
+ "/lib/libc.a",
+ "/lib/libm.a",
+ "/lib/libc_r.a",
+ "/lib/libm_r.a",
+ "/usr/lib/libc.a",
+ "/usr/lib/libm.a",
+ "/usr/lib/libc_r.a",
+ "/usr/lib/libm_r.a",
+ "/usr/lib/threads/libc.a",
+ "/usr/ccs/lib/libc.a",
+ "/usr/ccs/lib/libm.a",
+ "/usr/ccs/lib/libc_r.a",
+ "/usr/ccs/lib/libm_r.a",
+ NULL
+};
+
+/* This function checks the filename and returns 1
+ if this name matches the location of a standard AIX library. */
+static int ignore_library (const char *);
+static int
+ignore_library (const char *name)
+{
+ const char *const *p;
+ size_t length;
+
+ if (target_system_root[0] != '\0')
+ {
+ length = strlen (target_system_root);
+ if (strncmp (name, target_system_root, length) != 0)
+ return 0;
+ name += length;
+ }
+ for (p = &aix_std_libs[0]; *p != NULL; ++p)
+ if (strcmp (name, *p) == 0)
+ return 1;
+ return 0;
+}
+#endif /* COLLECT_EXPORT_LIST */
+
+#if defined (HAVE_DECL_LDGETNAME) && !HAVE_DECL_LDGETNAME
+extern char *ldgetname (LDFILE *, GCC_SYMENT *);
+#endif
- 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__. */
+/* COFF 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 (prog_name, which_pass)
- 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;
int is_shared = 0;
-#ifdef COLLECT_EXPORT_LIST
- /* Should we generate an import list for given prog_name? */
- int import_flag = (which_pass == PASS_OBJ ? 0 : use_import_list (prog_name));
-#endif
if (which_pass != PASS_FIRST && which_pass != PASS_OBJ)
return;
do
{
#endif
- if ((ldptr = ldopen (prog_name, ldptr)) != NULL)
+ /* 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,
+ using CONST_CAST to prevent complaints from -Wcast-qual. */
+ 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);
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
switch (is_ctor_dtor (name))
{
- case 1:
- if (! is_shared) add_to_list (&constructors, name);
-#ifdef COLLECT_EXPORT_LIST
+ 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)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
- /* If this symbol was undefined and we are building
- an import list, we should add a symbol to this
- list. */
- else
- if (import_flag
- && is_in_list (name, undefined.first))
- add_to_list (&imports, name);
#endif
break;
- case 2:
- if (! is_shared) add_to_list (&destructors, name);
-#ifdef COLLECT_EXPORT_LIST
+ 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)
if (which_pass == PASS_OBJ)
add_to_list (&exports, name);
- /* If this symbol was undefined and we are building
- an import list, we should add a symbol to this
- list. */
- else
- if (import_flag
- && is_in_list (name, undefined.first))
- add_to_list (&imports, name);
#endif
break;
#ifdef COLLECT_EXPORT_LIST
- case 3:
+ case SYM_INIT:
+ if (! (filter & SCAN_INIT))
+ break;
+#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&constructors, name);
+#endif
break;
- case 4:
+ case SYM_FINI:
+ if (! (filter & SCAN_FINI))
+ break;
+#ifndef LD_INIT_SWITCH
if (is_shared)
add_to_list (&destructors, name);
+#endif
break;
#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 or add
- them to import list. */
- if (shared_obj)
- {
- if (which_pass == PASS_OBJ && (! export_flag))
- add_to_list (&exports, name);
- else if (! is_shared && which_pass == PASS_FIRST
- && import_flag
- && is_in_list(name, undefined.first))
- add_to_list (&imports, name);
- }
+ 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)
+ if (which_pass == PASS_OBJ)
+ add_to_list (&exports, name);
+#endif
+ break;
+
+ default: /* not a constructor or destructor */
+#ifdef COLLECT_EXPORT_LIST
+ /* 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;
}
-#if !defined(EXTENDED_COFF)
if (debug)
+#if !defined(EXTENDED_COFF)
fprintf (stderr, "\tsec=%d class=%d type=%s%o %s\n",
symbol.n_scnum, symbol.n_sclass,
(symbol.n_type ? "0" : ""), symbol.n_type,
name);
#else
- if (debug)
fprintf (stderr,
"\tiss = %5d, value = %5ld, index = %5d, name = %s\n",
symbol.iss, (long) symbol.value, symbol.index, name);
#endif
}
-#ifdef COLLECT_EXPORT_LIST
- /* If we are building a shared object we should collect
- information about undefined symbols for later
- import list generation. */
- else if (shared_obj && GCC_UNDEF_SYMBOL (symbol))
- {
- char *name;
-
- if ((name = ldgetname (ldptr, &symbol)) == NULL)
- continue; /* should never happen */
-
- /* All AIX function names have a duplicate entry
- beginning with a dot. */
- if (*name == '.')
- ++name;
- add_to_list (&undefined, name);
- }
-#endif
}
}
#ifdef COLLECT_EXPORT_LIST
(void) ldclose(ldptr);
#endif
}
-
+#endif /* OBJECT_FORMAT_COFF */
#ifdef COLLECT_EXPORT_LIST
-
-/* This new function is used to decide whether we should
- generate import list for an object or to use it directly. */
-static int
-use_import_list (prog_name)
- char *prog_name;
-{
- char *p;
-
- /* If we do not build a shared object then import list should not be used. */
- if (! shared_obj) return 0;
-
- /* Currently we check only for libgcc, but this can be changed in future. */
- p = strstr (prog_name, "libgcc.a");
- if (p != 0 && (strlen (p) == sizeof ("libgcc.a") - 1))
- return 1;
- return 0;
-}
-
/* Given a library name without "lib" prefix, this function
returns a full library name including a path. */
static char *
-resolve_lib_name (name)
- char *name;
+resolve_lib_name (const char *name)
{
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)
l = libpaths[i]->max_len;
- lib_buf = xmalloc (l + strlen(name) + 10);
+ lib_buf = XNEWVEC (char, l + strlen(name) + 10);
for (i = 0; libpaths[i]; i++)
{
struct prefix_list *list = libpaths[i]->plist;
for (; list; list = list->next)
{
- for (j = 0; libexts[j]; j++)
+ /* The following lines are needed because path_prefix list
+ may contain directories both with trailing '/' and
+ without it. */
+ const char *p = "";
+ if (list->prefix[strlen(list->prefix)-1] != '/')
+ p = "/";
+ for (j = 0; j < 2; j++)
{
- /* The following lines are needed because path_prefix list
- may contain directories both with trailing '/' and
- without it. */
- char *p = "";
- if (list->prefix[strlen(list->prefix)-1] != '/')
- p = "/";
- sprintf (lib_buf, "%s%slib%s.%s",
- list->prefix, p, name, libexts[j]);
-if (debug) fprintf (stderr, "searching for: %s\n", lib_buf);
+ sprintf (lib_buf, "%s%slib%s.%s",
+ 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);
}
}
if (debug)
fprintf (stderr, "not found\n");
else
- fatal ("Library lib%s not found", name);
+ fatal ("library lib%s not found", name);
return (NULL);
}
-
-/* Array of standard AIX libraries which should not
- be scanned for ctors/dtors. */
-static char* aix_std_libs[] = {
- "/unix",
- "/lib/libc.a",
- "/lib/libc_r.a",
- "/usr/lib/libc.a",
- "/usr/lib/libc_r.a",
- "/usr/lib/threads/libc.a",
- "/usr/ccs/lib/libc.a",
- "/usr/ccs/lib/libc_r.a",
- NULL
-};
-
-/* This function checks the filename and returns 1
- if this name matches the location of a standard AIX library. */
-static int
-ignore_library (name)
- char *name;
-{
- char **p = &aix_std_libs[0];
- while (*p++ != NULL)
- if (! strcmp (name, *p)) return 1;
- return 0;
-}
-
-#endif
-
-#endif /* OBJECT_FORMAT_COFF */
-
-\f
-/*
- * OSF/rose specific stuff.
- */
-
-#ifdef OBJECT_FORMAT_ROSE
-
-/* Union of the various load commands */
-
-typedef union load_union
-{
- ldc_header_t hdr; /* common header */
- load_cmd_map_command_t map; /* map indexing other load cmds */
- interpreter_command_t iprtr; /* interpreter pathname */
- strings_command_t str; /* load commands strings section */
- region_command_t region; /* region load command */
- reloc_command_t reloc; /* relocation section */
- package_command_t pkg; /* package load command */
- symbols_command_t sym; /* symbol sections */
- entry_command_t ent; /* program start section */
- gen_info_command_t info; /* object information */
- func_table_command_t func; /* function constructors/destructors */
-} load_union_t;
-
-/* Structure to point to load command and data section in memory. */
-
-typedef struct load_all
-{
- load_union_t *load; /* load command */
- char *section; /* pointer to section */
-} load_all_t;
-
-/* Structure to contain information about a file mapped into memory. */
-
-struct file_info
-{
- char *start; /* start of map */
- char *name; /* filename */
- long size; /* size of the file */
- long rounded_size; /* size rounded to page boundary */
- int fd; /* file descriptor */
- int rw; /* != 0 if opened read/write */
- int use_mmap; /* != 0 if mmap'ed */
-};
-
-extern int decode_mach_o_hdr ();
-extern int encode_mach_o_hdr ();
-
-static void add_func_table PROTO((mo_header_t *, load_all_t *,
- symbol_info_t *, int));
-static void print_header PROTO((mo_header_t *));
-static void print_load_command PROTO((load_union_t *, size_t, int));
-static void bad_header PROTO((int));
-static struct file_info *read_file PROTO((char *, int, int));
-static void end_file PROTO((struct file_info *));
-\f
-/* OSF/rose specific 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__. */
-
-static void
-scan_prog_file (prog_name, which_pass)
- char *prog_name;
- enum pass which_pass;
-{
- char *obj;
- mo_header_t hdr;
- load_all_t *load_array;
- load_all_t *load_end;
- load_all_t *load_cmd;
- int symbol_load_cmds;
- off_t offset;
- int i;
- int num_syms;
- int status;
- char *str_sect;
- struct file_info *obj_file;
- int prog_fd;
- mo_lcid_t cmd_strings = -1;
- symbol_info_t *main_sym = 0;
- int rw = (which_pass != PASS_FIRST);
-
- prog_fd = open (prog_name, (rw) ? O_RDWR : O_RDONLY);
- if (prog_fd < 0)
- fatal_perror ("cannot read %s", prog_name);
-
- obj_file = read_file (prog_name, prog_fd, rw);
- obj = obj_file->start;
-
- status = decode_mach_o_hdr (obj, MO_SIZEOF_RAW_HDR, MOH_HEADER_VERSION, &hdr);
- if (status != MO_HDR_CONV_SUCCESS)
- bad_header (status);
-
-
- /* Do some basic sanity checks. Note we explicitly use the big endian magic number,
- since the hardware will automatically swap bytes for us on loading little endian
- integers. */
-
-#ifndef CROSS_COMPILE
- if (hdr.moh_magic != MOH_MAGIC_MSB
- || hdr.moh_header_version != MOH_HEADER_VERSION
- || hdr.moh_byte_order != OUR_BYTE_ORDER
- || hdr.moh_data_rep_id != OUR_DATA_REP_ID
- || hdr.moh_cpu_type != OUR_CPU_TYPE
- || hdr.moh_cpu_subtype != OUR_CPU_SUBTYPE
- || hdr.moh_vendor_type != OUR_VENDOR_TYPE)
- {
- fatal ("incompatibilities between object file & expected values");
- }
-#endif
-
- if (debug)
- print_header (&hdr);
-
- offset = hdr.moh_first_cmd_off;
- load_end = load_array
- = (load_all_t *) xcalloc (sizeof (load_all_t), hdr.moh_n_load_cmds + 2);
-
- /* Build array of load commands, calculating the offsets */
- for (i = 0; i < hdr.moh_n_load_cmds; i++)
- {
- load_union_t *load_hdr; /* load command header */
-
- load_cmd = load_end++;
- load_hdr = (load_union_t *) (obj + offset);
-
- /* If modifying the program file, copy the header. */
- if (rw)
- {
- load_union_t *ptr = (load_union_t *) xmalloc (load_hdr->hdr.ldci_cmd_size);
- bcopy ((char *)load_hdr, (char *)ptr, load_hdr->hdr.ldci_cmd_size);
- load_hdr = ptr;
-
- /* null out old command map, because we will rewrite at the end. */
- if (ptr->hdr.ldci_cmd_type == LDC_CMD_MAP)
- {
- cmd_strings = ptr->map.lcm_ld_cmd_strings;
- ptr->hdr.ldci_cmd_type = LDC_UNDEFINED;
- }
- }
-
- load_cmd->load = load_hdr;
- if (load_hdr->hdr.ldci_section_off > 0)
- load_cmd->section = obj + load_hdr->hdr.ldci_section_off;
-
- if (debug)
- print_load_command (load_hdr, offset, i);
-
- offset += load_hdr->hdr.ldci_cmd_size;
- }
-
- /* If the last command is the load command map and is not undefined,
- decrement the count of load commands. */
- if (rw && load_end[-1].load->hdr.ldci_cmd_type == LDC_UNDEFINED)
- {
- load_end--;
- hdr.moh_n_load_cmds--;
- }
-
- /* Go through and process each symbol table section. */
- symbol_load_cmds = 0;
- for (load_cmd = load_array; load_cmd < load_end; load_cmd++)
- {
- load_union_t *load_hdr = load_cmd->load;
-
- if (load_hdr->hdr.ldci_cmd_type == LDC_SYMBOLS)
- {
- symbol_load_cmds++;
-
- if (debug)
- {
- char *kind = "unknown";
-
- switch (load_hdr->sym.symc_kind)
- {
- case SYMC_IMPORTS: kind = "imports"; break;
- case SYMC_DEFINED_SYMBOLS: kind = "defined"; break;
- case SYMC_STABS: kind = "stabs"; break;
- }
-
- fprintf (stderr, "\nProcessing symbol table #%d, offset = 0x%.8lx, kind = %s\n",
- symbol_load_cmds, load_hdr->hdr.ldci_section_off, kind);
- }
-
- if (load_hdr->sym.symc_kind != SYMC_DEFINED_SYMBOLS)
- continue;
-
- str_sect = load_array[load_hdr->sym.symc_strings_section].section;
- if (str_sect == (char *) 0)
- fatal ("string section missing");
-
- if (load_cmd->section == (char *) 0)
- fatal ("section pointer missing");
-
- num_syms = load_hdr->sym.symc_nentries;
- for (i = 0; i < num_syms; i++)
- {
- symbol_info_t *sym = ((symbol_info_t *) load_cmd->section) + i;
- char *name = sym->si_name.symbol_name + str_sect;
-
- if (name[0] != '_')
- continue;
-
- if (rw)
- {
- char *n = name + strlen (name) - strlen (NAME__MAIN);
-
- if ((n - name) < 0 || strcmp (n, NAME__MAIN))
- continue;
- while (n != name)
- if (*--n != '_')
- continue;
-
- main_sym = sym;
- }
- else
- {
- switch (is_ctor_dtor (name))
- {
- case 1:
- add_to_list (&constructors, name);
- break;
-
- case 2:
- add_to_list (&destructors, name);
- break;
-
- default: /* not a constructor or destructor */
- continue;
- }
- }
-
- if (debug)
- fprintf (stderr, "\ttype = 0x%.4x, sc = 0x%.2x, flags = 0x%.8x, name = %.30s\n",
- sym->si_type, sym->si_sc_type, sym->si_flags, name);
- }
- }
- }
-
- if (symbol_load_cmds == 0)
- fatal ("no symbol table found");
-
- /* Update the program file now, rewrite header and load commands. At present,
- we assume that there is enough space after the last load command to insert
- one more. Since the first section written out is page aligned, and the
- number of load commands is small, this is ok for the present. */
-
- if (rw)
- {
- load_union_t *load_map;
- size_t size;
-
- if (cmd_strings == -1)
- fatal ("no cmd_strings found");
-
- /* Add __main to initializer list.
- If we are building a program instead of a shared library, do not
- do anything, since in the current version, you cannot do mallocs
- and such in the constructors. */
-
- if (main_sym != (symbol_info_t *) 0
- && ((hdr.moh_flags & MOH_EXECABLE_F) == 0))
- add_func_table (&hdr, load_array, main_sym, FNTC_INITIALIZATION);
-
- if (debug)
- fprintf (stderr, "\nUpdating header and load commands.\n\n");
-
- hdr.moh_n_load_cmds++;
- size = sizeof (load_cmd_map_command_t) + (sizeof (mo_offset_t) * (hdr.moh_n_load_cmds - 1));
-
- /* Create new load command map. */
- if (debug)
- fprintf (stderr, "load command map, %d cmds, new size %ld.\n",
- (int)hdr.moh_n_load_cmds, (long)size);
-
- load_map = (load_union_t *) xcalloc (1, size);
- load_map->map.ldc_header.ldci_cmd_type = LDC_CMD_MAP;
- load_map->map.ldc_header.ldci_cmd_size = size;
- load_map->map.lcm_ld_cmd_strings = cmd_strings;
- load_map->map.lcm_nentries = hdr.moh_n_load_cmds;
- load_array[hdr.moh_n_load_cmds-1].load = load_map;
-
- offset = hdr.moh_first_cmd_off;
- for (i = 0; i < hdr.moh_n_load_cmds; i++)
- {
- load_map->map.lcm_map[i] = offset;
- if (load_array[i].load->hdr.ldci_cmd_type == LDC_CMD_MAP)
- hdr.moh_load_map_cmd_off = offset;
-
- offset += load_array[i].load->hdr.ldci_cmd_size;
- }
-
- hdr.moh_sizeofcmds = offset - MO_SIZEOF_RAW_HDR;
-
- if (debug)
- print_header (&hdr);
-
- /* Write header */
- status = encode_mach_o_hdr (&hdr, obj, MO_SIZEOF_RAW_HDR);
- if (status != MO_HDR_CONV_SUCCESS)
- bad_header (status);
-
- if (debug)
- fprintf (stderr, "writing load commands.\n\n");
-
- /* Write load commands */
- offset = hdr.moh_first_cmd_off;
- for (i = 0; i < hdr.moh_n_load_cmds; i++)
- {
- load_union_t *load_hdr = load_array[i].load;
- size_t size = load_hdr->hdr.ldci_cmd_size;
-
- if (debug)
- print_load_command (load_hdr, offset, i);
-
- bcopy ((char *) load_hdr, (char *) (obj + offset), size);
- offset += size;
- }
- }
-
- end_file (obj_file);
-
- if (close (prog_fd))
- fatal_perror ("closing %s", prog_name);
-
- if (debug)
- fprintf (stderr, "\n");
-}
-
-\f
-/* Add a function table to the load commands to call a function
- on initiation or termination of the process. */
-
-static void
-add_func_table (hdr_p, load_array, sym, type)
- mo_header_t *hdr_p; /* pointer to global header */
- load_all_t *load_array; /* array of ptrs to load cmds */
- symbol_info_t *sym; /* pointer to symbol entry */
- int type; /* fntc_type value */
-{
- /* Add a new load command. */
- int num_cmds = ++hdr_p->moh_n_load_cmds;
- int load_index = num_cmds - 1;
- size_t size = sizeof (func_table_command_t) + sizeof (mo_addr_t);
- load_union_t *ptr = xcalloc (1, size);
- load_all_t *load_cmd;
- int i;
-
- /* Set the unresolved address bit in the header to force the loader to be
- used, since kernel exec does not call the initialization functions. */
- hdr_p->moh_flags |= MOH_UNRESOLVED_F;
-
- load_cmd = &load_array[load_index];
- load_cmd->load = ptr;
- load_cmd->section = (char *) 0;
-
- /* Fill in func table load command. */
- ptr->func.ldc_header.ldci_cmd_type = LDC_FUNC_TABLE;
- ptr->func.ldc_header.ldci_cmd_size = size;
- ptr->func.ldc_header.ldci_section_off = 0;
- ptr->func.ldc_header.ldci_section_len = 0;
- ptr->func.fntc_type = type;
- ptr->func.fntc_nentries = 1;
-
- /* copy address, turn it from abs. address to (region,offset) if necessary. */
- /* Is the symbol already expressed as (region, offset)? */
- if ((sym->si_flags & SI_ABSOLUTE_VALUE_F) == 0)
- {
- ptr->func.fntc_entry_loc[i].adr_lcid = sym->si_value.def_val.adr_lcid;
- ptr->func.fntc_entry_loc[i].adr_sctoff = sym->si_value.def_val.adr_sctoff;
- }
-
- /* If not, figure out which region it's in. */
- else
- {
- mo_vm_addr_t addr = sym->si_value.abs_val;
- int found = 0;
-
- for (i = 0; i < load_index; i++)
- {
- if (load_array[i].load->hdr.ldci_cmd_type == LDC_REGION)
- {
- region_command_t *region_ptr = &load_array[i].load->region;
-
- if ((region_ptr->regc_flags & REG_ABS_ADDR_F) != 0
- && addr >= region_ptr->regc_addr.vm_addr
- && addr <= region_ptr->regc_addr.vm_addr + region_ptr->regc_vm_size)
- {
- ptr->func.fntc_entry_loc[0].adr_lcid = i;
- ptr->func.fntc_entry_loc[0].adr_sctoff = addr - region_ptr->regc_addr.vm_addr;
- found++;
- break;
- }
- }
- }
-
- if (!found)
- fatal ("could not convert 0x%l.8x into a region", addr);
- }
-
- if (debug)
- fprintf (stderr,
- "%s function, region %d, offset = %ld (0x%.8lx)\n",
- (type == FNTC_INITIALIZATION) ? "init" : "term",
- (int)ptr->func.fntc_entry_loc[i].adr_lcid,
- (long)ptr->func.fntc_entry_loc[i].adr_sctoff,
- (long)ptr->func.fntc_entry_loc[i].adr_sctoff);
-
-}
-
-\f
-/* Print the global header for an OSF/rose object. */
-
-static void
-print_header (hdr_ptr)
- mo_header_t *hdr_ptr;
-{
- fprintf (stderr, "\nglobal header:\n");
- fprintf (stderr, "\tmoh_magic = 0x%.8lx\n", hdr_ptr->moh_magic);
- fprintf (stderr, "\tmoh_major_version = %d\n", (int)hdr_ptr->moh_major_version);
- fprintf (stderr, "\tmoh_minor_version = %d\n", (int)hdr_ptr->moh_minor_version);
- fprintf (stderr, "\tmoh_header_version = %d\n", (int)hdr_ptr->moh_header_version);
- fprintf (stderr, "\tmoh_max_page_size = %d\n", (int)hdr_ptr->moh_max_page_size);
- fprintf (stderr, "\tmoh_byte_order = %d\n", (int)hdr_ptr->moh_byte_order);
- fprintf (stderr, "\tmoh_data_rep_id = %d\n", (int)hdr_ptr->moh_data_rep_id);
- fprintf (stderr, "\tmoh_cpu_type = %d\n", (int)hdr_ptr->moh_cpu_type);
- fprintf (stderr, "\tmoh_cpu_subtype = %d\n", (int)hdr_ptr->moh_cpu_subtype);
- fprintf (stderr, "\tmoh_vendor_type = %d\n", (int)hdr_ptr->moh_vendor_type);
- fprintf (stderr, "\tmoh_load_map_cmd_off = %d\n", (int)hdr_ptr->moh_load_map_cmd_off);
- fprintf (stderr, "\tmoh_first_cmd_off = %d\n", (int)hdr_ptr->moh_first_cmd_off);
- fprintf (stderr, "\tmoh_sizeofcmds = %d\n", (int)hdr_ptr->moh_sizeofcmds);
- fprintf (stderr, "\tmon_n_load_cmds = %d\n", (int)hdr_ptr->moh_n_load_cmds);
- fprintf (stderr, "\tmoh_flags = 0x%.8lx", (long)hdr_ptr->moh_flags);
-
- if (hdr_ptr->moh_flags & MOH_RELOCATABLE_F)
- fprintf (stderr, ", relocatable");
-
- if (hdr_ptr->moh_flags & MOH_LINKABLE_F)
- fprintf (stderr, ", linkable");
-
- if (hdr_ptr->moh_flags & MOH_EXECABLE_F)
- fprintf (stderr, ", execable");
-
- if (hdr_ptr->moh_flags & MOH_EXECUTABLE_F)
- fprintf (stderr, ", executable");
-
- if (hdr_ptr->moh_flags & MOH_UNRESOLVED_F)
- fprintf (stderr, ", unresolved");
-
- fprintf (stderr, "\n\n");
- return;
-}
-
-\f
-/* Print a short summary of a load command. */
-
-static void
-print_load_command (load_hdr, offset, number)
- load_union_t *load_hdr;
- size_t offset;
- int number;
-{
- mo_long_t type = load_hdr->hdr.ldci_cmd_type;
- char *type_str = (char *) 0;
-
- switch (type)
- {
- case LDC_UNDEFINED: type_str = "UNDEFINED"; break;
- case LDC_CMD_MAP: type_str = "CMD_MAP"; break;
- case LDC_INTERPRETER: type_str = "INTERPRETER"; break;
- case LDC_STRINGS: type_str = "STRINGS"; break;
- case LDC_REGION: type_str = "REGION"; break;
- case LDC_RELOC: type_str = "RELOC"; break;
- case LDC_PACKAGE: type_str = "PACKAGE"; break;
- case LDC_SYMBOLS: type_str = "SYMBOLS"; break;
- case LDC_ENTRY: type_str = "ENTRY"; break;
- case LDC_FUNC_TABLE: type_str = "FUNC_TABLE"; break;
- case LDC_GEN_INFO: type_str = "GEN_INFO"; break;
- }
-
- fprintf (stderr,
- "cmd %2d, sz: 0x%.2lx, coff: 0x%.3lx, doff: 0x%.6lx, dlen: 0x%.6lx",
- number,
- (long) load_hdr->hdr.ldci_cmd_size,
- (long) offset,
- (long) load_hdr->hdr.ldci_section_off,
- (long) load_hdr->hdr.ldci_section_len);
-
- if (type_str == (char *) 0)
- fprintf (stderr, ", ty: unknown (%ld)\n", (long) type);
-
- else if (type != LDC_REGION)
- fprintf (stderr, ", ty: %s\n", type_str);
-
- else
- {
- char *region = "";
- switch (load_hdr->region.regc_usage_type)
- {
- case REG_TEXT_T: region = ", .text"; break;
- case REG_DATA_T: region = ", .data"; break;
- case REG_BSS_T: region = ", .bss"; break;
- case REG_GLUE_T: region = ", .glue"; break;
-#if defined (REG_RDATA_T) && defined (REG_SDATA_T) && defined (REG_SBSS_T) /*mips*/
- case REG_RDATA_T: region = ", .rdata"; break;
- case REG_SDATA_T: region = ", .sdata"; break;
- case REG_SBSS_T: region = ", .sbss"; break;
-#endif
- }
-
- fprintf (stderr, ", ty: %s, vaddr: 0x%.8lx, vlen: 0x%.6lx%s\n",
- type_str,
- (long) load_hdr->region.regc_vm_addr,
- (long) load_hdr->region.regc_vm_size,
- region);
- }
-
- return;
-}
-
-\f
-/* Fatal error when {en,de}code_mach_o_header fails. */
-
-static void
-bad_header (status)
- int status;
-{
- char *msg = (char *) 0;
-
- switch (status)
- {
- case MO_ERROR_BAD_MAGIC: msg = "bad magic number"; break;
- case MO_ERROR_BAD_HDR_VERS: msg = "bad header version"; break;
- case MO_ERROR_BAD_RAW_HDR_VERS: msg = "bad raw header version"; break;
- case MO_ERROR_BUF2SML: msg = "raw header buffer too small"; break;
- case MO_ERROR_OLD_RAW_HDR_FILE: msg = "old raw header file"; break;
- case MO_ERROR_UNSUPPORTED_VERS: msg = "unsupported version"; break;
- }
-
- if (msg == (char *) 0)
- fatal ("unknown {de,en}code_mach_o_hdr return value %d", status);
- else
- fatal ("%s", msg);
-}
-
-\f
-/* Read a file into a memory buffer. */
-
-static struct file_info *
-read_file (name, fd, rw)
- char *name; /* filename */
- int fd; /* file descriptor */
- int rw; /* read/write */
-{
- struct stat stat_pkt;
- struct file_info *p = (struct file_info *) xcalloc (sizeof (struct file_info), 1);
-#ifdef USE_MMAP
- static int page_size;
-#endif
-
- if (fstat (fd, &stat_pkt) < 0)
- fatal_perror ("fstat %s", name);
-
- p->name = name;
- p->size = stat_pkt.st_size;
- p->rounded_size = stat_pkt.st_size;
- p->fd = fd;
- p->rw = rw;
-
-#ifdef USE_MMAP
- if (debug)
- fprintf (stderr, "mmap %s, %s\n", name, (rw) ? "read/write" : "read-only");
-
- if (page_size == 0)
- page_size = sysconf (_SC_PAGE_SIZE);
-
- p->rounded_size = ((p->size + page_size - 1) / page_size) * page_size;
- p->start = mmap ((caddr_t) 0,
- (rw) ? p->rounded_size : p->size,
- (rw) ? (PROT_READ | PROT_WRITE) : PROT_READ,
- MAP_FILE | MAP_VARIABLE | MAP_SHARED,
- fd,
- 0L);
-
- if (p->start != (char *) 0 && p->start != (char *) -1)
- p->use_mmap = 1;
-
- else
-#endif /* USE_MMAP */
- {
- long len;
-
- if (debug)
- fprintf (stderr, "read %s\n", name);
-
- p->use_mmap = 0;
- p->start = xmalloc (p->size);
- if (lseek (fd, 0L, SEEK_SET) < 0)
- fatal_perror ("lseek to 0 on %s", name);
-
- len = read (fd, p->start, p->size);
- if (len < 0)
- fatal_perror ("read %s", name);
-
- if (len != p->size)
- fatal ("read %ld bytes, expected %ld, from %s", len, p->size, name);
- }
-
- return p;
-}
-\f
-/* Do anything necessary to write a file back from memory. */
-
-static void
-end_file (ptr)
- struct file_info *ptr; /* file information block */
-{
-#ifdef USE_MMAP
- if (ptr->use_mmap)
- {
- if (ptr->rw)
- {
- if (debug)
- fprintf (stderr, "msync %s\n", ptr->name);
-
- if (msync (ptr->start, ptr->rounded_size, MS_ASYNC))
- fatal_perror ("msync %s", ptr->name);
- }
-
- if (debug)
- fprintf (stderr, "munmap %s\n", ptr->name);
-
- if (munmap (ptr->start, ptr->size))
- fatal_perror ("munmap %s", ptr->name);
- }
- else
-#endif /* USE_MMAP */
- {
- if (ptr->rw)
- {
- long len;
-
- if (debug)
- fprintf (stderr, "write %s\n", ptr->name);
-
- if (lseek (ptr->fd, 0L, SEEK_SET) < 0)
- fatal_perror ("lseek to 0 on %s", ptr->name);
-
- len = write (ptr->fd, ptr->start, ptr->size);
- if (len < 0)
- fatal_perror ("write %s", ptr->name);
-
- if (len != ptr->size)
- fatal ("wrote %ld bytes, expected %ld, to %s", len, ptr->size, ptr->name);
- }
-
- free (ptr->start);
- }
-
- free (ptr);
-}
-
-#endif /* OBJECT_FORMAT_ROSE */
+#endif /* COLLECT_EXPORT_LIST */
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