X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=ld%2Fldmain.c;h=bc03e0274357179a7d0d0eb39e269eb57f8b255a;hb=99ad839030c1177eb409a99320fa7e60226f0db3;hp=284b975ad61a922cea38920870c1df0b25248aca;hpb=3fe38064baf3b9afbd892b0df390b3879d9072a9;p=binutils-gdb.git diff --git a/ld/ldmain.c b/ld/ldmain.c index 284b975ad61..bc03e027435 100644 --- a/ld/ldmain.c +++ b/ld/ldmain.c @@ -1,6 +1,6 @@ /* Main program of GNU linker. Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, - 2002, 2003 + 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. Written by Steve Chamberlain steve@cygnus.com @@ -18,8 +18,8 @@ You should have received a copy of the GNU General Public License along with GLD; see the file COPYING. If not, write to the Free - Software Foundation, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #include "bfd.h" #include "sysdep.h" @@ -50,8 +50,8 @@ #include #ifdef HAVE_SBRK -#ifdef NEED_DECLARATION_SBRK -extern PTR sbrk (); +#if !HAVE_DECL_SBRK +extern void *sbrk (); #endif #endif @@ -59,8 +59,6 @@ extern PTR sbrk (); #define TARGET_SYSTEM_ROOT "" #endif -int main PARAMS ((int, char **)); - /* EXPORTS */ char *default_target; @@ -70,7 +68,7 @@ const char *output_filename = "a.out"; char *program_name; /* The prefix for system library directories. */ -char *ld_sysroot; +const char *ld_sysroot; /* The canonical representation of ld_sysroot. */ char * ld_canon_sysroot; @@ -95,6 +93,14 @@ bfd_boolean version_printed; /* Nonzero means link in every member of an archive. */ bfd_boolean whole_archive; +/* Nonzero means create DT_NEEDED entries only if a dynamic library + actually satisfies some reference in a regular object. */ +bfd_boolean as_needed; + +/* Nonzero means never create DT_NEEDED entries for dynamic libraries + in DT_NEEDED tags. */ +bfd_boolean add_needed = TRUE; + /* TRUE if we should demangle symbol names. */ bfd_boolean demangling; @@ -102,46 +108,45 @@ args_type command_line; ld_config_type config; +sort_type sort_section; + +static const char *get_sysroot + (int, char **); static char *get_emulation - PARAMS ((int, char **)); + (int, char **); static void set_scripts_dir - PARAMS ((void)); -static void remove_output - PARAMS ((void)); -static bfd_boolean check_for_scripts_dir - PARAMS ((char *)); + (void); static bfd_boolean add_archive_element - PARAMS ((struct bfd_link_info *, bfd *, const char *)); + (struct bfd_link_info *, bfd *, const char *); static bfd_boolean multiple_definition - PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, - bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, + bfd *, asection *, bfd_vma); static bfd_boolean multiple_common - PARAMS ((struct bfd_link_info *, const char *, bfd *, - enum bfd_link_hash_type, bfd_vma, bfd *, enum bfd_link_hash_type, - bfd_vma)); + (struct bfd_link_info *, const char *, bfd *, enum bfd_link_hash_type, + bfd_vma, bfd *, enum bfd_link_hash_type, bfd_vma); static bfd_boolean add_to_set - PARAMS ((struct bfd_link_info *, struct bfd_link_hash_entry *, - bfd_reloc_code_real_type, bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, struct bfd_link_hash_entry *, + bfd_reloc_code_real_type, bfd *, asection *, bfd_vma); static bfd_boolean constructor_callback - PARAMS ((struct bfd_link_info *, bfd_boolean, const char *, bfd *, - asection *, bfd_vma)); + (struct bfd_link_info *, bfd_boolean, const char *, bfd *, + asection *, bfd_vma); static bfd_boolean warning_callback - PARAMS ((struct bfd_link_info *, const char *, const char *, bfd *, - asection *, bfd_vma)); + (struct bfd_link_info *, const char *, const char *, bfd *, + asection *, bfd_vma); static void warning_find_reloc - PARAMS ((bfd *, asection *, PTR)); + (bfd *, asection *, void *); static bfd_boolean undefined_symbol - PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, - bfd_boolean)); + (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, + bfd_boolean); static bfd_boolean reloc_overflow - PARAMS ((struct bfd_link_info *, const char *, const char *, bfd_vma, - bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, + const char *, bfd_vma, bfd *, asection *, bfd_vma); static bfd_boolean reloc_dangerous - PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); static bfd_boolean unattached_reloc - PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); static bfd_boolean notice - PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma)); + (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); static struct bfd_link_callbacks link_callbacks = { @@ -155,27 +160,26 @@ static struct bfd_link_callbacks link_callbacks = reloc_overflow, reloc_dangerous, unattached_reloc, - notice + notice, + einfo }; struct bfd_link_info link_info; static void -remove_output () +remove_output (void) { if (output_filename) { - if (output_bfd && output_bfd->iostream) - fclose ((FILE *) (output_bfd->iostream)); + if (output_bfd) + bfd_cache_close (output_bfd); if (delete_output_file_on_failure) - unlink (output_filename); + unlink_if_ordinary (output_filename); } } int -main (argc, argv) - int argc; - char **argv; +main (int argc, char **argv) { char *emulation; long start_time = get_run_time (); @@ -194,53 +198,26 @@ main (argc, argv) START_PROGRESS (program_name, 0); + expandargv (&argc, &argv); + bfd_init (); bfd_set_error_program_name (program_name); xatexit (remove_output); -#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE - ld_sysroot = make_relative_prefix (program_name, BINDIR, - TARGET_SYSTEM_ROOT); - - if (ld_sysroot) + /* Set up the sysroot directory. */ + ld_sysroot = get_sysroot (argc, argv); + if (*ld_sysroot) { - struct stat s; - int res = stat (ld_sysroot, &s) == 0 && S_ISDIR (s.st_mode); - - if (!res) + if (*TARGET_SYSTEM_ROOT == 0) { - free (ld_sysroot); - ld_sysroot = NULL; - } - } - - if (! ld_sysroot) - { - ld_sysroot = make_relative_prefix (program_name, TOOLBINDIR, - TARGET_SYSTEM_ROOT); - - if (ld_sysroot) - { - struct stat s; - int res = stat (ld_sysroot, &s) == 0 && S_ISDIR (s.st_mode); - - if (!res) - { - free (ld_sysroot); - ld_sysroot = NULL; - } + einfo ("%P%F: this linker was not configured to use sysroots\n"); + ld_sysroot = ""; } + else + ld_canon_sysroot = lrealpath (ld_sysroot); } - - if (! ld_sysroot) -#endif - ld_sysroot = TARGET_SYSTEM_ROOT; - - if (ld_sysroot && *ld_sysroot) - ld_canon_sysroot = lrealpath (ld_sysroot); - if (ld_canon_sysroot) ld_canon_sysroot_len = strlen (ld_canon_sysroot); else @@ -271,6 +248,7 @@ main (argc, argv) config.has_shared = FALSE; config.split_by_reloc = (unsigned) -1; config.split_by_file = (bfd_size_type) -1; + config.hash_table_size = 0; command_line.force_common_definition = FALSE; command_line.inhibit_common_definition = FALSE; command_line.interpreter = NULL; @@ -278,6 +256,9 @@ main (argc, argv) command_line.warn_mismatch = TRUE; command_line.check_section_addresses = TRUE; command_line.accept_unknown_input_arch = FALSE; + command_line.reduce_memory_overheads = FALSE; + + sort_section = none; /* We initialize DEMANGLING based on the environment variable COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the @@ -286,25 +267,30 @@ main (argc, argv) interface by default. */ demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL; - link_info.relocateable = FALSE; + link_info.relocatable = FALSE; link_info.emitrelocations = FALSE; link_info.task_link = FALSE; link_info.shared = FALSE; + link_info.pie = FALSE; + link_info.executable = FALSE; link_info.symbolic = FALSE; link_info.export_dynamic = FALSE; link_info.static_link = FALSE; link_info.traditional_format = FALSE; link_info.optimize = FALSE; - link_info.no_undefined = FALSE; - link_info.allow_shlib_undefined = TRUE; + link_info.unresolved_syms_in_objects = RM_NOT_YET_SET; + link_info.unresolved_syms_in_shared_libs = RM_NOT_YET_SET; link_info.allow_multiple_definition = FALSE; link_info.allow_undefined_version = TRUE; + link_info.create_default_symver = FALSE; + link_info.default_imported_symver = FALSE; link_info.keep_memory = TRUE; link_info.notice_all = FALSE; link_info.nocopyreloc = FALSE; link_info.new_dtags = FALSE; link_info.combreloc = TRUE; link_info.eh_frame_hdr = FALSE; + link_info.relro = FALSE; link_info.strip_discarded = TRUE; link_info.strip = strip_none; link_info.discard = discard_sec_merge; @@ -318,16 +304,25 @@ main (argc, argv) link_info.create_object_symbols_section = NULL; link_info.gc_sym_list = NULL; link_info.base_file = NULL; + link_info.emit_hash = TRUE; + link_info.emit_gnu_hash = FALSE; /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init and _fini symbols. We are compatible. */ link_info.init_function = "_init"; link_info.fini_function = "_fini"; - link_info.mpc860c0 = 0; link_info.pei386_auto_import = -1; link_info.pei386_runtime_pseudo_reloc = FALSE; link_info.spare_dynamic_tags = 5; - link_info.flags = (bfd_vma) 0; - link_info.flags_1 = (bfd_vma) 0; + link_info.flags = 0; + link_info.flags_1 = 0; + link_info.relax_pass = 1; + link_info.warn_shared_textrel = FALSE; + link_info.gc_sections = FALSE; + link_info.print_gc_sections = FALSE; + link_info.dynamic = NULL; + + config.maxpagesize = 0; + config.commonpagesize = 0; ldfile_add_arch (""); @@ -344,14 +339,22 @@ main (argc, argv) lang_has_input_file = FALSE; parse_args (argc, argv); + if (config.hash_table_size != 0) + bfd_hash_set_default_size (config.hash_table_size); + + if (config.maxpagesize != 0) + bfd_emul_set_maxpagesize (default_target, config.maxpagesize); + + if (config.commonpagesize != 0) + bfd_emul_set_commonpagesize (default_target, + config.commonpagesize); + ldemul_set_symbols (); - if (link_info.relocateable) + if (link_info.relocatable) { - if (command_line.gc_sections) + if (link_info.gc_sections) einfo ("%P%F: --gc-sections and -r may not be used together\n"); - if (link_info.mpc860c0) - einfo (_("%P%F: -r and --mpc860c0 may not be used together\n")); else if (command_line.relax) einfo (_("%P%F: --relax and -r may not be used together\n")); if (link_info.shared) @@ -366,10 +369,13 @@ main (argc, argv) einfo (_("%P%F: -f may not be used without -shared\n")); } + if (! link_info.shared || link_info.pie) + link_info.executable = TRUE; + /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I don't see how else this can be handled, since in this case we must preserve all externally visible symbols. */ - if (link_info.relocateable && link_info.strip == strip_all) + if (link_info.relocatable && link_info.strip == strip_all) { link_info.strip = strip_debugger; if (link_info.discard == discard_sec_merge) @@ -468,7 +474,7 @@ main (argc, argv) /* Print error messages for any missing symbols, for any warning symbols, and possibly multiple definitions. */ - if (link_info.relocateable) + if (link_info.relocatable) output_bfd->flags &= ~EXEC_P; else output_bfd->flags |= EXEC_P; @@ -482,9 +488,11 @@ main (argc, argv) if (nocrossref_list != NULL) check_nocrossrefs (); - /* Even if we're producing relocateable output, some non-fatal errors should + lang_finish (); + + /* Even if we're producing relocatable output, some non-fatal errors should be reported in the exit status. (What non-fatal errors, if any, do we - want to ignore for relocateable output?) */ + want to ignore for relocatable output?) */ if (!config.make_executable && !force_make_executable) { if (trace_files) @@ -502,7 +510,7 @@ main (argc, argv) /* If the --force-exe-suffix is enabled, and we're making an executable file and it doesn't end in .exe, copy it to one which does. */ - if (! link_info.relocateable && command_line.force_exe_suffix) + if (! link_info.relocatable && command_line.force_exe_suffix) { int len = strlen (output_filename); @@ -523,9 +531,11 @@ main (argc, argv) dst = fopen (dst_name, FOPEN_WB); if (!src) - einfo (_("%X%P: unable to open for source of copy `%s'\n"), output_filename); + einfo (_("%X%P: unable to open for source of copy `%s'\n"), + output_filename); if (!dst) - einfo (_("%X%P: unable to open for destination of copy `%s'\n"), dst_name); + einfo (_("%X%P: unable to open for destination of copy `%s'\n"), + dst_name); while ((l = fread (buf, 1, bsize, src)) > 0) { int done = fwrite (buf, 1, l, dst); @@ -548,7 +558,7 @@ main (argc, argv) if (config.stats) { #ifdef HAVE_SBRK - char *lim = (char *) sbrk (0); + char *lim = sbrk (0); #endif long run_time = get_run_time () - start_time; @@ -567,13 +577,56 @@ main (argc, argv) return 0; } +/* If the configured sysroot is relocatable, try relocating it based on + default prefix FROM. Return the relocated directory if it exists, + otherwise return null. */ + +static char * +get_relative_sysroot (const char *from ATTRIBUTE_UNUSED) +{ +#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE + char *path; + struct stat s; + + path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT); + if (path) + { + if (stat (path, &s) == 0 && S_ISDIR (s.st_mode)) + return path; + free (path); + } +#endif + return 0; +} + +/* Return the sysroot directory. Return "" if no sysroot is being used. */ + +static const char * +get_sysroot (int argc, char **argv) +{ + int i; + const char *path; + + for (i = 1; i < argc; i++) + if (CONST_STRNEQ (argv[i], "--sysroot=")) + return argv[i] + strlen ("--sysroot="); + + path = get_relative_sysroot (BINDIR); + if (path) + return path; + + path = get_relative_sysroot (TOOLBINDIR); + if (path) + return path; + + return TARGET_SYSTEM_ROOT; +} + /* We need to find any explicitly given emulation in order to initialize the state that's needed by the lex&yacc argument parser (parse_args). */ static char * -get_emulation (argc, argv) - int argc; - char **argv; +get_emulation (int argc, char **argv) { char *emulation; int i; @@ -584,7 +637,7 @@ get_emulation (argc, argv) for (i = 1; i < argc; i++) { - if (!strncmp (argv[i], "-m", 2)) + if (CONST_STRNEQ (argv[i], "-m")) { if (argv[i][2] == '\0') { @@ -604,7 +657,8 @@ get_emulation (argc, argv) || strcmp (argv[i], "-mips5") == 0 || strcmp (argv[i], "-mips32") == 0 || strcmp (argv[i], "-mips32r2") == 0 - || strcmp (argv[i], "-mips64") == 0) + || strcmp (argv[i], "-mips64") == 0 + || strcmp (argv[i], "-mips64r2") == 0) { /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are passed to the linker by some MIPS compilers. They @@ -636,8 +690,7 @@ get_emulation (argc, argv) else return FALSE. */ static bfd_boolean -check_for_scripts_dir (dir) - char *dir; +check_for_scripts_dir (char *dir) { size_t dirlen; char *buf; @@ -646,7 +699,7 @@ check_for_scripts_dir (dir) dirlen = strlen (dir); /* sizeof counts the terminating NUL. */ - buf = (char *) xmalloc (dirlen + sizeof ("/ldscripts")); + buf = xmalloc (dirlen + sizeof ("/ldscripts")); sprintf (buf, "%s/ldscripts", dir); res = stat (buf, &s) == 0 && S_ISDIR (s.st_mode); @@ -668,26 +721,29 @@ check_for_scripts_dir (dir) (for installing the tool suite elsewhere). */ static void -set_scripts_dir () +set_scripts_dir (void) { char *end, *dir; size_t dirlen; + bfd_boolean found; dir = make_relative_prefix (program_name, BINDIR, SCRIPTDIR); - if (dir && check_for_scripts_dir (dir)) - /* Success. Don't free dir. */ - return; - if (dir) - free (dir); + { + found = check_for_scripts_dir (dir); + free (dir); + if (found) + return; + } dir = make_relative_prefix (program_name, TOOLBINDIR, SCRIPTDIR); - if (dir && check_for_scripts_dir (dir)) - /* Success. Don't free dir. */ - return; - if (dir) - free (dir); + { + found = check_for_scripts_dir (dir); + free (dir); + if (found) + return; + } if (check_for_scripts_dir (SCRIPTDIR)) /* We've been installed normally. */ @@ -713,55 +769,51 @@ set_scripts_dir () dirlen = end - program_name; /* Make a copy of program_name in dir. Leave room for later "/../lib". */ - dir = (char *) xmalloc (dirlen + 8); + dir = xmalloc (dirlen + 8); strncpy (dir, program_name, dirlen); dir[dirlen] = '\0'; if (check_for_scripts_dir (dir)) - /* Don't free dir. */ - return; + { + free (dir); + return; + } /* Look for "ldscripts" in /../lib. */ strcpy (dir + dirlen, "/../lib"); - if (check_for_scripts_dir (dir)) - return; - - /* Well, we tried. */ + check_for_scripts_dir (dir); free (dir); } void -add_ysym (name) - const char *name; +add_ysym (const char *name) { - if (link_info.notice_hash == (struct bfd_hash_table *) NULL) + if (link_info.notice_hash == NULL) { - link_info.notice_hash = ((struct bfd_hash_table *) - xmalloc (sizeof (struct bfd_hash_table))); - if (! bfd_hash_table_init_n (link_info.notice_hash, - bfd_hash_newfunc, - 61)) + link_info.notice_hash = xmalloc (sizeof (struct bfd_hash_table)); + if (!bfd_hash_table_init_n (link_info.notice_hash, + bfd_hash_newfunc, + sizeof (struct bfd_hash_entry), + 61)) einfo (_("%P%F: bfd_hash_table_init failed: %E\n")); } - if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) - == (struct bfd_hash_entry *) NULL) + if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL) einfo (_("%P%F: bfd_hash_lookup failed: %E\n")); } /* Record a symbol to be wrapped, from the --wrap option. */ void -add_wrap (name) - const char *name; +add_wrap (const char *name) { if (link_info.wrap_hash == NULL) { - link_info.wrap_hash = ((struct bfd_hash_table *) - xmalloc (sizeof (struct bfd_hash_table))); - if (! bfd_hash_table_init_n (link_info.wrap_hash, - bfd_hash_newfunc, - 61)) + link_info.wrap_hash = xmalloc (sizeof (struct bfd_hash_table)); + if (!bfd_hash_table_init_n (link_info.wrap_hash, + bfd_hash_newfunc, + sizeof (struct bfd_hash_entry), + 61)) einfo (_("%P%F: bfd_hash_table_init failed: %E\n")); } @@ -772,8 +824,7 @@ add_wrap (name) /* Handle the -retain-symbols-file option. */ void -add_keepsyms_file (filename) - const char *filename; +add_keepsyms_file (const char *filename) { FILE *file; char *buf; @@ -784,20 +835,20 @@ add_keepsyms_file (filename) einfo (_("%X%P: error: duplicate retain-symbols-file\n")); file = fopen (filename, "r"); - if (file == (FILE *) NULL) + if (file == NULL) { bfd_set_error (bfd_error_system_call); einfo ("%X%P: %s: %E\n", filename); return; } - link_info.keep_hash = ((struct bfd_hash_table *) - xmalloc (sizeof (struct bfd_hash_table))); - if (! bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc)) + link_info.keep_hash = xmalloc (sizeof (struct bfd_hash_table)); + if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc, + sizeof (struct bfd_hash_entry))) einfo (_("%P%F: bfd_hash_table_init failed: %E\n")); bufsize = 100; - buf = (char *) xmalloc (bufsize); + buf = xmalloc (bufsize); c = getc (file); while (c != EOF) @@ -823,8 +874,7 @@ add_keepsyms_file (filename) buf[len] = '\0'; - if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) - == (struct bfd_hash_entry *) NULL) + if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL) einfo (_("%P%F: bfd_hash_lookup for insertion failed: %E\n")); } } @@ -832,6 +882,7 @@ add_keepsyms_file (filename) if (link_info.strip != strip_none) einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n")); + free (buf); link_info.strip = strip_some; } @@ -841,15 +892,13 @@ add_keepsyms_file (filename) a link. */ static bfd_boolean -add_archive_element (info, abfd, name) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - bfd *abfd; - const char *name; +add_archive_element (struct bfd_link_info *info, + bfd *abfd, + const char *name) { lang_input_statement_type *input; - input = ((lang_input_statement_type *) - xmalloc (sizeof (lang_input_statement_type))); + input = xmalloc (sizeof (lang_input_statement_type)); input->filename = abfd->filename; input->local_sym_name = abfd->filename; input->the_bfd = abfd; @@ -867,14 +916,14 @@ add_archive_element (info, abfd, name) ldlang_add_file (input); - if (config.map_file != (FILE *) NULL) + if (config.map_file != NULL) { static bfd_boolean header_printed; struct bfd_link_hash_entry *h; bfd *from; int len; - h = bfd_link_hash_lookup (link_info.hash, name, FALSE, FALSE, TRUE); + h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); if (h == NULL) from = NULL; @@ -954,15 +1003,14 @@ add_archive_element (info, abfd, name) multiple times. */ static bfd_boolean -multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name; - bfd *obfd; - asection *osec; - bfd_vma oval; - bfd *nbfd; - asection *nsec; - bfd_vma nval; +multiple_definition (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *name, + bfd *obfd, + asection *osec, + bfd_vma oval, + bfd *nbfd, + asection *nsec, + bfd_vma nval) { /* If either section has the output_section field set to bfd_abs_section_ptr, it means that the section is being @@ -979,7 +1027,7 @@ multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval) einfo (_("%X%C: multiple definition of `%T'\n"), nbfd, nsec, nval, name); - if (obfd != (bfd *) NULL) + if (obfd != NULL) einfo (_("%D: first defined here\n"), obfd, osec, oval); if (command_line.relax) @@ -997,15 +1045,14 @@ multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval) -warn-common was used. */ static bfd_boolean -multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name; - bfd *obfd; - enum bfd_link_hash_type otype; - bfd_vma osize; - bfd *nbfd; - enum bfd_link_hash_type ntype; - bfd_vma nsize; +multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *name, + bfd *obfd, + enum bfd_link_hash_type otype, + bfd_vma osize, + bfd *nbfd, + enum bfd_link_hash_type ntype, + bfd_vma nsize) { if (! config.warn_common) return TRUE; @@ -1063,13 +1110,12 @@ multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize) represent a value which should be added to the set. */ static bfd_boolean -add_to_set (info, h, reloc, abfd, section, value) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - struct bfd_link_hash_entry *h; - bfd_reloc_code_real_type reloc; - bfd *abfd; - asection *section; - bfd_vma value; +add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED, + struct bfd_link_hash_entry *h, + bfd_reloc_code_real_type reloc, + bfd *abfd, + asection *section, + bfd_vma value) { if (config.warn_constructors) einfo (_("%P: warning: global constructor %s used\n"), @@ -1078,7 +1124,7 @@ add_to_set (info, h, reloc, abfd, section, value) if (! config.build_constructors) return TRUE; - ldctor_add_set_entry (h, reloc, (const char *) NULL, section, value); + ldctor_add_set_entry (h, reloc, NULL, section, value); if (h->type == bfd_link_hash_new) { @@ -1098,13 +1144,12 @@ add_to_set (info, h, reloc, abfd, section, value) adding an element to a set, but less general. */ static bfd_boolean -constructor_callback (info, constructor, name, abfd, section, value) - struct bfd_link_info *info; - bfd_boolean constructor; - const char *name; - bfd *abfd; - asection *section; - bfd_vma value; +constructor_callback (struct bfd_link_info *info, + bfd_boolean constructor, + const char *name, + bfd *abfd, + asection *section, + bfd_vma value) { char *s; struct bfd_link_hash_entry *h; @@ -1119,7 +1164,7 @@ constructor_callback (info, constructor, name, abfd, section, value) /* Ensure that BFD_RELOC_CTOR exists now, so that we can give a useful error message. */ if (bfd_reloc_type_lookup (output_bfd, BFD_RELOC_CTOR) == NULL - && (link_info.relocateable + && (info->relocatable || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL)) einfo (_("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported\n")); @@ -1161,13 +1206,12 @@ struct warning_callback_info /* This is called when there is a reference to a warning symbol. */ static bfd_boolean -warning_callback (info, warning, symbol, abfd, section, address) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *warning; - const char *symbol; - bfd *abfd; - asection *section; - bfd_vma address; +warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *warning, + const char *symbol, + bfd *abfd, + asection *section, + bfd_vma address) { /* This is a hack to support warn_multiple_gp. FIXME: This should have a cleaner interface, but what? */ @@ -1176,11 +1220,11 @@ warning_callback (info, warning, symbol, abfd, section, address) return TRUE; if (section != NULL) - einfo ("%C: %s\n", abfd, section, address, warning); + einfo ("%C: %s%s\n", abfd, section, address, _("warning: "), warning); else if (abfd == NULL) - einfo ("%P: %s\n", warning); + einfo ("%P: %s%s\n", _("warning: "), warning); else if (symbol == NULL) - einfo ("%B: %s\n", abfd, warning); + einfo ("%B: %s%s\n", abfd, _("warning: "), warning); else { lang_input_statement_type *entry; @@ -1200,7 +1244,7 @@ warning_callback (info, warning, symbol, abfd, section, address) symsize = bfd_get_symtab_upper_bound (abfd); if (symsize < 0) einfo (_("%B%F: could not read symbols: %E\n"), abfd); - asymbols = (asymbol **) xmalloc (symsize); + asymbols = xmalloc (symsize); symbol_count = bfd_canonicalize_symtab (abfd, asymbols); if (symbol_count < 0) einfo (_("%B%F: could not read symbols: %E\n"), abfd); @@ -1215,10 +1259,10 @@ warning_callback (info, warning, symbol, abfd, section, address) info.warning = warning; info.symbol = symbol; info.asymbols = asymbols; - bfd_map_over_sections (abfd, warning_find_reloc, (PTR) &info); + bfd_map_over_sections (abfd, warning_find_reloc, &info); if (! info.found) - einfo ("%B: %s\n", abfd, warning); + einfo ("%B: %s%s\n", abfd, _("warning: "), warning); if (entry == NULL) free (asymbols); @@ -1233,12 +1277,9 @@ warning_callback (info, warning, symbol, abfd, section, address) to give an error message with a file and line number. */ static void -warning_find_reloc (abfd, sec, iarg) - bfd *abfd; - asection *sec; - PTR iarg; +warning_find_reloc (bfd *abfd, asection *sec, void *iarg) { - struct warning_callback_info *info = (struct warning_callback_info *) iarg; + struct warning_callback_info *info = iarg; long relsize; arelent **relpp; long relcount; @@ -1253,7 +1294,7 @@ warning_find_reloc (abfd, sec, iarg) if (relsize == 0) return; - relpp = (arelent **) xmalloc (relsize); + relpp = xmalloc (relsize); relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols); if (relcount < 0) einfo (_("%B%F: could not read relocs: %E\n"), abfd); @@ -1269,7 +1310,8 @@ warning_find_reloc (abfd, sec, iarg) && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0) { /* We found a reloc for the symbol we are looking for. */ - einfo ("%C: %s\n", abfd, sec, q->address, info->warning); + einfo ("%C: %s%s\n", abfd, sec, q->address, _("warning: "), + info->warning); info->found = TRUE; break; } @@ -1281,13 +1323,12 @@ warning_find_reloc (abfd, sec, iarg) /* This is called when an undefined symbol is found. */ static bfd_boolean -undefined_symbol (info, name, abfd, section, address, fatal) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name; - bfd *abfd; - asection *section; - bfd_vma address; - bfd_boolean fatal ATTRIBUTE_UNUSED; +undefined_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *name, + bfd *abfd, + asection *section, + bfd_vma address, + bfd_boolean error) { static char *error_name; static unsigned int error_count; @@ -1301,9 +1342,9 @@ undefined_symbol (info, name, abfd, section, address, fatal) /* Only warn once about a particular undefined symbol. */ if (hash == NULL) { - hash = ((struct bfd_hash_table *) - xmalloc (sizeof (struct bfd_hash_table))); - if (! bfd_hash_table_init (hash, bfd_hash_newfunc)) + hash = xmalloc (sizeof (struct bfd_hash_table)); + if (!bfd_hash_table_init (hash, bfd_hash_newfunc, + sizeof (struct bfd_hash_entry))) einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); } @@ -1316,13 +1357,13 @@ undefined_symbol (info, name, abfd, section, address, fatal) /* We never print more than a reasonable number of errors in a row for a single symbol. */ - if (error_name != (char *) NULL + if (error_name != NULL && strcmp (name, error_name) == 0) ++error_count; else { error_count = 0; - if (error_name != (char *) NULL) + if (error_name != NULL) free (error_name); error_name = xstrdup (name); } @@ -1331,49 +1372,113 @@ undefined_symbol (info, name, abfd, section, address, fatal) { if (error_count < MAX_ERRORS_IN_A_ROW) { - einfo (_("%C: undefined reference to `%T'\n"), - abfd, section, address, name); - if (fatal) - einfo ("%X"); + if (error) + einfo (_("%X%C: undefined reference to `%T'\n"), + abfd, section, address, name); + else + einfo (_("%C: warning: undefined reference to `%T'\n"), + abfd, section, address, name); } else if (error_count == MAX_ERRORS_IN_A_ROW) - einfo (_("%D: more undefined references to `%T' follow\n"), - abfd, section, address, name); + { + if (error) + einfo (_("%X%D: more undefined references to `%T' follow\n"), + abfd, section, address, name); + else + einfo (_("%D: warning: more undefined references to `%T' follow\n"), + abfd, section, address, name); + } + else if (error) + einfo ("%X"); } else { if (error_count < MAX_ERRORS_IN_A_ROW) { - einfo (_("%B: undefined reference to `%T'\n"), - abfd, name); - if (fatal) - einfo ("%X"); + if (error) + einfo (_("%X%B: undefined reference to `%T'\n"), + abfd, name); + else + einfo (_("%B: warning: undefined reference to `%T'\n"), + abfd, name); } else if (error_count == MAX_ERRORS_IN_A_ROW) - einfo (_("%B: more undefined references to `%T' follow\n"), - abfd, name); + { + if (error) + einfo (_("%X%B: more undefined references to `%T' follow\n"), + abfd, name); + else + einfo (_("%B: warning: more undefined references to `%T' follow\n"), + abfd, name); + } + else if (error) + einfo ("%X"); } return TRUE; } +/* Counter to limit the number of relocation overflow error messages + to print. Errors are printed as it is decremented. When it's + called and the counter is zero, a final message is printed + indicating more relocations were omitted. When it gets to -1, no + such errors are printed. If it's initially set to a value less + than -1, all such errors will be printed (--verbose does this). */ + +int overflow_cutoff_limit = 10; + /* This is called when a reloc overflows. */ static bfd_boolean -reloc_overflow (info, name, reloc_name, addend, abfd, section, address) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name; - const char *reloc_name; - bfd_vma addend; - bfd *abfd; - asection *section; - bfd_vma address; +reloc_overflow (struct bfd_link_info *info ATTRIBUTE_UNUSED, + struct bfd_link_hash_entry *entry, + const char *name, + const char *reloc_name, + bfd_vma addend, + bfd *abfd, + asection *section, + bfd_vma address) { - if (abfd == (bfd *) NULL) - einfo (_("%P%X: generated")); + if (overflow_cutoff_limit == -1) + return TRUE; + + einfo ("%X%C:", abfd, section, address); + + if (overflow_cutoff_limit >= 0 + && overflow_cutoff_limit-- == 0) + { + einfo (_(" additional relocation overflows omitted from the output\n")); + return TRUE; + } + + if (entry) + { + while (entry->type == bfd_link_hash_indirect + || entry->type == bfd_link_hash_warning) + entry = entry->u.i.link; + switch (entry->type) + { + case bfd_link_hash_undefined: + case bfd_link_hash_undefweak: + einfo (_(" relocation truncated to fit: %s against undefined symbol `%T'"), + reloc_name, entry->root.string); + break; + case bfd_link_hash_defined: + case bfd_link_hash_defweak: + einfo (_(" relocation truncated to fit: %s against symbol `%T' defined in %A section in %B"), + reloc_name, entry->root.string, + entry->u.def.section, + entry->u.def.section == bfd_abs_section_ptr + ? output_bfd : entry->u.def.section->owner); + break; + default: + abort (); + break; + } + } else - einfo ("%X%C:", abfd, section, address); - einfo (_(" relocation truncated to fit: %s %T"), reloc_name, name); + einfo (_(" relocation truncated to fit: %s against `%T'"), + reloc_name, name); if (addend != 0) einfo ("+%v", addend); einfo ("\n"); @@ -1383,18 +1488,14 @@ reloc_overflow (info, name, reloc_name, addend, abfd, section, address) /* This is called when a dangerous relocation is made. */ static bfd_boolean -reloc_dangerous (info, message, abfd, section, address) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *message; - bfd *abfd; - asection *section; - bfd_vma address; +reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *message, + bfd *abfd, + asection *section, + bfd_vma address) { - if (abfd == (bfd *) NULL) - einfo (_("%P%X: generated")); - else - einfo ("%X%C:", abfd, section, address); - einfo (_("dangerous relocation: %s\n"), message); + einfo (_("%X%C: dangerous relocation: %s\n"), + abfd, section, address, message); return TRUE; } @@ -1402,18 +1503,14 @@ reloc_dangerous (info, message, abfd, section, address) that is not being output. */ static bfd_boolean -unattached_reloc (info, name, abfd, section, address) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name; - bfd *abfd; - asection *section; - bfd_vma address; +unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, + const char *name, + bfd *abfd, + asection *section, + bfd_vma address) { - if (abfd == (bfd *) NULL) - einfo (_("%P%X: generated")); - else - einfo ("%X%C:", abfd, section, address); - einfo (_(" reloc refers to symbol `%T' which is not being output\n"), name); + einfo (_("%X%C: reloc refers to symbol `%T' which is not being output\n"), + abfd, section, address, name); return TRUE; } @@ -1422,13 +1519,19 @@ unattached_reloc (info, name, abfd, section, address) using the -y option. */ static bfd_boolean -notice (info, name, abfd, section, value) - struct bfd_link_info *info; - const char *name; - bfd *abfd; - asection *section; - bfd_vma value; +notice (struct bfd_link_info *info, + const char *name, + bfd *abfd, + asection *section, + bfd_vma value) { + if (name == NULL) + { + if (command_line.cref || nocrossref_list != NULL) + return handle_asneeded_cref (abfd, value); + return TRUE; + } + if (! info->notice_all || (info->notice_hash != NULL && bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL))