diff options
author | obrien <obrien@FreeBSD.org> | 2001-05-28 05:21:37 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2001-05-28 05:21:37 +0000 |
commit | 90aa3fa770643569efc3bee2e45663dd4cb78169 (patch) | |
tree | 007d791ffceddabae379ea2dbc60a588962e3e09 /contrib/binutils/ld/emultempl | |
parent | 6b180e381265f078b377bc5faa1d524c29208320 (diff) | |
parent | 328e45595b12375b6d16a846069507d25086abdb (diff) | |
download | FreeBSD-src-90aa3fa770643569efc3bee2e45663dd4cb78169.zip FreeBSD-src-90aa3fa770643569efc3bee2e45663dd4cb78169.tar.gz |
This commit was generated by cvs2svn to compensate for changes in r77298,
which included commits to RCS files with non-trunk default branches.
Diffstat (limited to 'contrib/binutils/ld/emultempl')
-rw-r--r-- | contrib/binutils/ld/emultempl/armcoff.em | 7 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/armelf.em | 1250 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/armelf_oabi.em | 7 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/generic.em | 10 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/linux.em | 7 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/pe.em | 579 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/ticoff.em | 202 | ||||
-rw-r--r-- | contrib/binutils/ld/emultempl/vanilla.em | 9 |
8 files changed, 744 insertions, 1327 deletions
diff --git a/contrib/binutils/ld/emultempl/armcoff.em b/contrib/binutils/ld/emultempl/armcoff.em index d73b3d1..936da13 100644 --- a/contrib/binutils/ld/emultempl/armcoff.em +++ b/contrib/binutils/ld/emultempl/armcoff.em @@ -4,7 +4,8 @@ cat >e${EMULATION_NAME}.c <<EOF /* This file is is generated by a shell script. DO NOT EDIT! */ /* emulate the original gld for the given ${EMULATION_NAME} - Copyright (C) 1991, 93, 96, 97, 98, 1999 Free Software Foundation, Inc. + Copyright (C) 1991, 93, 96, 97, 98, 99, 2000 + Free Software Foundation, Inc. Written by Steve Chamberlain steve@cygnus.com This file is part of GLD, the Gnu Linker. @@ -32,12 +33,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ld.h" #include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" #include "ldmisc.h" #include "ldexp.h" #include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); diff --git a/contrib/binutils/ld/emultempl/armelf.em b/contrib/binutils/ld/emultempl/armelf.em index 9abf7f1..3c82bce 100644 --- a/contrib/binutils/ld/emultempl/armelf.em +++ b/contrib/binutils/ld/emultempl/armelf.em @@ -1,137 +1,32 @@ # This shell script emits a C file. -*- C -*- -# It does some substitutions. -ELFSIZE=32 -cat >e${EMULATION_NAME}.c <<EOF -/* This file is is generated by a shell script. DO NOT EDIT! */ - -/* emulate the original gld for the given ${EMULATION_NAME} - Copyright (C) 1991, 93, 96, 97, 98, 1999 Free Software Foundation, Inc. - Written by Steve Chamberlain steve@cygnus.com - -This file is part of GLD, the Gnu Linker. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define TARGET_IS_${EMULATION_NAME} - -#include "bfd.h" -#include "sysdep.h" - -#include <ctype.h> - -#include "bfdlink.h" -#include "getopt.h" - -#include "ld.h" -#include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" -#include "ldmisc.h" - -#include "ldexp.h" -#include "ldlang.h" -#include "ldgram.h" - -static boolean gld${EMULATION_NAME}_open_dynamic_archive - PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); -static void gld${EMULATION_NAME}_after_open PARAMS ((void)); -static void gld${EMULATION_NAME}_check_needed - PARAMS ((lang_input_statement_type *)); -static void gld${EMULATION_NAME}_stat_needed - PARAMS ((lang_input_statement_type *)); -static boolean gld${EMULATION_NAME}_search_needed - PARAMS ((const char *, const char *, int)); -static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *, int)); -static void gld${EMULATION_NAME}_vercheck - PARAMS ((lang_input_statement_type *)); -static void gld${EMULATION_NAME}_find_statement_assignment - PARAMS ((lang_statement_union_type *)); -static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); -static boolean gld${EMULATION_NAME}_place_orphan - PARAMS ((lang_input_statement_type *, asection *)); -static void gld${EMULATION_NAME}_place_section - PARAMS ((lang_statement_union_type *)); -static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); -static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); -static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); -static int gld${EMULATION_NAME}_parse_args PARAMS((int, char **)); -static void gld${EMULATION_NAME}_list_options PARAMS ((FILE *)); -static void gld${EMULATION_NAME}_finish PARAMS ((void)); +# Copyright (C) 1991, 93, 96, 97, 98, 99, 2000 +# Free Software Foundation, Inc. +# +# This file is part of GLD, the Gnu Linker. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# + +# This file is sourced from elf32.em, and defines extra arm-elf +# specific routines. +# +cat >>e${EMULATION_NAME}.c <<EOF - static int no_pipeline_knowledge = 0; -static char * thumb_entry_symbol = NULL; - -#define OPTION_THUMB_ENTRY 301 +static char *thumb_entry_symbol = NULL; -static struct option longopts[] = -{ - { "no-pipeline-knowledge", no_argument, NULL, 'p'}, - { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, - { NULL, no_argument, NULL, 0 } -}; - -static void -gld${EMULATION_NAME}_list_options (file) - FILE * file; -{ - fprintf (file, _(" -p --no-pipeline-knowledge Stop the linker knowing about the pipeline length\n")); - fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n")); -} - -static int -gld${EMULATION_NAME}_parse_args (argc, argv) - int argc; - char ** argv; -{ - int longind; - int optc; - int prevoptind = optind; - int prevopterr = opterr; - int wanterror; - static int lastoptind = -1; - - if (lastoptind != optind) - opterr = 0; - - wanterror = opterr; - lastoptind = optind; - - optc = getopt_long_only (argc, argv, "-p", longopts, & longind); - opterr = prevopterr; - - switch (optc) - { - default: - if (wanterror) - xexit (1); - optind = prevoptind; - return 0; - - case 'p': - no_pipeline_knowledge = 1; - break; - - case OPTION_THUMB_ENTRY: - thumb_entry_symbol = optarg; - break; - } - - return 1; -} - static void gld${EMULATION_NAME}_before_parse () @@ -143,174 +38,12 @@ gld${EMULATION_NAME}_before_parse () config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`; } -/* Try to open a dynamic archive. This is where we know that ELF - dynamic libraries have an extension of .so. */ -static boolean -gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry) - const char *arch; - search_dirs_type *search; - lang_input_statement_type *entry; -{ - const char *filename; - char *string; - - if (! entry->is_archive) - return false; - - filename = entry->filename; - - string = (char *) xmalloc (strlen (search->name) - + strlen (filename) - + strlen (arch) - + sizeof "/lib.so"); - - sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); - - if (! ldfile_try_open_bfd (string, entry)) - { - free (string); - return false; - } - - entry->filename = string; - - /* We have found a dynamic object to include in the link. The ELF - backend linker will create a DT_NEEDED entry in the .dynamic - section naming this file. If this file includes a DT_SONAME - entry, it will be used. Otherwise, the ELF linker will just use - the name of the file. For an archive found by searching, like - this one, the DT_NEEDED entry should consist of just the name of - the file, without the path information used to find it. Note - that we only need to do this if we have a dynamic object; an - archive will never be referenced by a DT_NEEDED entry. - - FIXME: This approach--using bfd_elf_set_dt_needed_name--is not - very pretty. I haven't been able to think of anything that is - pretty, though. */ - if (bfd_check_format (entry->the_bfd, bfd_object) - && (entry->the_bfd->flags & DYNAMIC) != 0) - { - char *needed_name; - - ASSERT (entry->is_archive && entry->search_dirs_flag); - needed_name = (char *) xmalloc (strlen (filename) - + strlen (arch) - + sizeof "lib.so"); - sprintf (needed_name, "lib%s%s.so", filename, arch); - bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name); - } - - return true; -} - -EOF -if [ "x${host}" = "x${target}" ] ; then - case " ${EMULATION_LIBPATH} " in - *" ${EMULATION_NAME} "*) -cat >>e${EMULATION_NAME}.c <<EOF - -/* For a native linker, check the file /etc/ld.so.conf for directories - in which we may find shared libraries. /etc/ld.so.conf is really - only meaningful on Linux, but we check it on other systems anyhow. */ - -static boolean gld${EMULATION_NAME}_check_ld_so_conf - PARAMS ((const char *, int)); - -static boolean -gld${EMULATION_NAME}_check_ld_so_conf (name, force) - const char *name; - int force; -{ - static boolean initialized; - static char *ld_so_conf; - - if (! initialized) - { - FILE *f; - - f = fopen ("/etc/ld.so.conf", FOPEN_RT); - if (f != NULL) - { - char *b; - size_t len, alloc; - int c; - - len = 0; - alloc = 100; - b = (char *) xmalloc (alloc); - - while ((c = getc (f)) != EOF) - { - if (len + 1 >= alloc) - { - alloc *= 2; - b = (char *) xrealloc (b, alloc); - } - if (c != ':' - && c != ' ' - && c != '\t' - && c != '\n' - && c != ',') - { - b[len] = c; - ++len; - } - else - { - if (len > 0 && b[len - 1] != ':') - { - b[len] = ':'; - ++len; - } - } - } - - if (len > 0 && b[len - 1] == ':') - --len; - - if (len > 0) - b[len] = '\0'; - else - { - free (b); - b = NULL; - } - - fclose (f); - - ld_so_conf = b; - } - - initialized = true; - } - - if (ld_so_conf == NULL) - return false; - - return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force); -} - -EOF - ;; - esac -fi -cat >>e${EMULATION_NAME}.c <<EOF - -/* These variables are required to pass information back and forth - between after_open and check_needed and stat_needed and vercheck. */ - -static struct bfd_link_needed_list *global_needed; -static struct stat global_stat; -static boolean global_found; -static struct bfd_link_needed_list *global_vercheck_needed; -static boolean global_vercheck_failed; +static void arm_elf_after_open PARAMS((void)); static void -gld${EMULATION_NAME}_after_open () +arm_elf_after_open () { - struct bfd_link_needed_list *needed, *l; - if (strstr (bfd_get_target (output_bfd), "arm") == NULL) { /* The arm backend needs special fields in the output hash structure. @@ -330,819 +63,20 @@ gld${EMULATION_NAME}_after_open () } } - /* We only need to worry about this when doing a final link. */ - if (link_info.relocateable || link_info.shared) - return; - - /* Get the list of files which appear in DT_NEEDED entries in - dynamic objects included in the link (often there will be none). - For each such file, we want to track down the corresponding - library, and include the symbol table in the link. This is what - the runtime dynamic linker will do. Tracking the files down here - permits one dynamic object to include another without requiring - special action by the person doing the link. Note that the - needed list can actually grow while we are stepping through this - loop. */ - needed = bfd_elf_get_needed_list (output_bfd, &link_info); - for (l = needed; l != NULL; l = l->next) - { - struct bfd_link_needed_list *ll; - int force; - - /* If we've already seen this file, skip it. */ - for (ll = needed; ll != l; ll = ll->next) - if (strcmp (ll->name, l->name) == 0) - break; - if (ll != l) - continue; - - /* See if this file was included in the link explicitly. */ - global_needed = l; - global_found = false; - lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); - if (global_found) - continue; - - /* We need to find this file and include the symbol table. We - want to search for the file in the same way that the dynamic - linker will search. That means that we want to use - rpath_link, rpath, then the environment variable - LD_LIBRARY_PATH (native only), then the linker script - LIB_SEARCH_DIRS. We do not search using the -L arguments. - - We search twice. The first time, we skip objects which may - introduce version mismatches. The second time, we force - their use. See gld${EMULATION_NAME}_vercheck comment. */ - for (force = 0; force < 2; force++) - { - const char *lib_path; - size_t len; - search_dirs_type *search; - - if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, - l->name, force)) - break; - if (gld${EMULATION_NAME}_search_needed (command_line.rpath, - l->name, force)) - break; - if (command_line.rpath_link == NULL - && command_line.rpath == NULL) - { - lib_path = (const char *) getenv ("LD_RUN_PATH"); - if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, - force)) - break; - } -EOF -if [ "x${host}" = "x${target}" ] ; then - case " ${EMULATION_LIBPATH} " in - *" ${EMULATION_NAME} "*) -cat >>e${EMULATION_NAME}.c <<EOF - lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); - if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force)) - break; -EOF - ;; - esac -fi -cat >>e${EMULATION_NAME}.c <<EOF - len = strlen (l->name); - for (search = search_head; search != NULL; search = search->next) - { - char *filename; - - if (search->cmdline) - continue; - filename = (char *) xmalloc (strlen (search->name) + len + 2); - sprintf (filename, "%s/%s", search->name, l->name); - if (gld${EMULATION_NAME}_try_needed (filename, force)) - break; - free (filename); - } - if (search != NULL) - break; -EOF -if [ "x${host}" = "x${target}" ] ; then - case " ${EMULATION_LIBPATH} " in - *" ${EMULATION_NAME} "*) -cat >>e${EMULATION_NAME}.c <<EOF - if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) - break; -EOF - ;; - esac -fi -cat >>e${EMULATION_NAME}.c <<EOF - } - - if (force < 2) - continue; - - einfo ("%P: warning: %s, needed by %B, not found (try using --rpath)\n", - l->name, l->by); - } -} - -/* Search for a needed file in a path. */ - -static boolean -gld${EMULATION_NAME}_search_needed (path, name, force) - const char *path; - const char *name; - int force; -{ - const char *s; - size_t len; - - if (path == NULL || *path == '\0') - return false; - len = strlen (name); - while (1) - { - char *filename, *sset; - - s = strchr (path, ':'); - if (s == NULL) - s = path + strlen (path); - - filename = (char *) xmalloc (s - path + len + 2); - if (s == path) - sset = filename; - else - { - memcpy (filename, path, s - path); - filename[s - path] = '/'; - sset = filename + (s - path) + 1; - } - strcpy (sset, name); - - if (gld${EMULATION_NAME}_try_needed (filename, force)) - return true; - - free (filename); - - if (*s == '\0') - break; - path = s + 1; - } - - return false; -} - -/* This function is called for each possible name for a dynamic object - named by a DT_NEEDED entry. The FORCE parameter indicates whether - to skip the check for a conflicting version. */ - -static boolean -gld${EMULATION_NAME}_try_needed (name, force) - const char *name; - int force; -{ - bfd *abfd; - - abfd = bfd_openr (name, bfd_get_target (output_bfd)); - if (abfd == NULL) - return false; - if (! bfd_check_format (abfd, bfd_object)) - { - (void) bfd_close (abfd); - return false; - } - if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) - { - (void) bfd_close (abfd); - return false; - } - - /* Check whether this object would include any conflicting library - versions. If FORCE is set, then we skip this check; we use this - the second time around, if we couldn't find any compatible - instance of the shared library. */ - - if (! force) - { - struct bfd_link_needed_list *needed; - - if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) - einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); - - if (needed != NULL) - { - global_vercheck_needed = needed; - global_vercheck_failed = false; - lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); - if (global_vercheck_failed) - { - (void) bfd_close (abfd); - /* Return false to force the caller to move on to try - another file on the search path. */ - return false; - } - - /* But wait! It gets much worse. On Linux, if a shared - library does not use libc at all, we are supposed to skip - it the first time around in case we encounter a shared - library later on with the same name which does use the - version of libc that we want. This is much too horrible - to use on any system other than Linux. */ - -EOF -case ${target} in - *-*-linux-gnu*) - cat >>e${EMULATION_NAME}.c <<EOF - { - struct bfd_link_needed_list *l; - - for (l = needed; l != NULL; l = l->next) - if (strncmp (l->name, "libc.so", 7) == 0) - break; - if (l == NULL) - { - (void) bfd_close (abfd); - return false; - } - } - -EOF - ;; -esac -cat >>e${EMULATION_NAME}.c <<EOF - } - } - - /* We've found a dynamic object matching the DT_NEEDED entry. */ - - /* We have already checked that there is no other input file of the - same name. We must now check again that we are not including the - same file twice. We need to do this because on many systems - libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will - reference libc.so.1. If we have already included libc.so, we - don't want to include libc.so.1 if they are the same file, and we - can only check that using stat. */ - - if (bfd_stat (abfd, &global_stat) != 0) - einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); - global_found = false; - lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); - if (global_found) - { - /* Return true to indicate that we found the file, even though - we aren't going to do anything with it. */ - return true; - } - - /* Tell the ELF backend that don't want the output file to have a - DT_NEEDED entry for this file. */ - bfd_elf_set_dt_needed_name (abfd, ""); - - /* Add this file into the symbol table. */ - if (! bfd_link_add_symbols (abfd, &link_info)) - einfo ("%F%B: could not read symbols: %E\n", abfd); - - return true; -} - -/* See if an input file matches a DT_NEEDED entry by name. */ - -static void -gld${EMULATION_NAME}_check_needed (s) - lang_input_statement_type *s; -{ - if (global_found) - return; - - if (s->filename != NULL - && strcmp (s->filename, global_needed->name) == 0) - { - global_found = true; - return; - } - - if (s->the_bfd != NULL) - { - const char *soname; - - soname = bfd_elf_get_dt_soname (s->the_bfd); - if (soname != NULL - && strcmp (soname, global_needed->name) == 0) - { - global_found = true; - return; - } - } - - if (s->search_dirs_flag - && s->filename != NULL - && strchr (global_needed->name, '/') == NULL) - { - const char *f; - - f = strrchr (s->filename, '/'); - if (f != NULL - && strcmp (f + 1, global_needed->name) == 0) - { - global_found = true; - return; - } - } + /* Call the standard elf routine. */ + gld${EMULATION_NAME}_after_open (); } -/* See if an input file matches a DT_NEEDED entry by running stat on - the file. */ -static void -gld${EMULATION_NAME}_stat_needed (s) - lang_input_statement_type *s; -{ - struct stat st; - const char *suffix; - const char *soname; - const char *f; - - if (global_found) - return; - if (s->the_bfd == NULL) - return; - - if (bfd_stat (s->the_bfd, &st) != 0) - { - einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); - return; - } - - if (st.st_dev == global_stat.st_dev - && st.st_ino == global_stat.st_ino) - { - global_found = true; - return; - } - - /* We issue a warning if it looks like we are including two - different versions of the same shared library. For example, - there may be a problem if -lc picks up libc.so.6 but some other - shared library has a DT_NEEDED entry of libc.so.5. This is a - hueristic test, and it will only work if the name looks like - NAME.so.VERSION. FIXME: Depending on file names is error-prone. - If we really want to issue warnings about mixing version numbers - of shared libraries, we need to find a better way. */ - - if (strchr (global_needed->name, '/') != NULL) - return; - suffix = strstr (global_needed->name, ".so."); - if (suffix == NULL) - return; - suffix += sizeof ".so." - 1; - - soname = bfd_elf_get_dt_soname (s->the_bfd); - if (soname == NULL) - soname = s->filename; - - f = strrchr (soname, '/'); - if (f != NULL) - ++f; - else - f = soname; - - if (strncmp (f, global_needed->name, suffix - global_needed->name) == 0) - einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", - global_needed->name, global_needed->by, f); -} - -/* On Linux, it's possible to have different versions of the same - shared library linked against different versions of libc. The - dynamic linker somehow tags which libc version to use in - /etc/ld.so.cache, and, based on the libc that it sees in the - executable, chooses which version of the shared library to use. - - We try to do a similar check here by checking whether this shared - library needs any other shared libraries which may conflict with - libraries we have already included in the link. If it does, we - skip it, and try to find another shared library farther on down the - link path. - - This is called via lang_for_each_input_file. - GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object - which we ar checking. This sets GLOBAL_VERCHECK_FAILED if we find - a conflicting version. */ +static void arm_elf_before_allocation PARAMS ((void)); static void -gld${EMULATION_NAME}_vercheck (s) - lang_input_statement_type *s; +arm_elf_before_allocation () { - const char *soname, *f; - struct bfd_link_needed_list *l; - - if (global_vercheck_failed) - return; - if (s->the_bfd == NULL - || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) - return; - - soname = bfd_elf_get_dt_soname (s->the_bfd); - if (soname == NULL) - soname = bfd_get_filename (s->the_bfd); - - f = strrchr (soname, '/'); - if (f != NULL) - ++f; - else - f = soname; - - for (l = global_vercheck_needed; l != NULL; l = l->next) - { - const char *suffix; - - if (strcmp (f, l->name) == 0) - { - /* Probably can't happen, but it's an easy check. */ - continue; - } - - if (strchr (l->name, '/') != NULL) - continue; - - suffix = strstr (l->name, ".so."); - if (suffix == NULL) - continue; + /* Call the standard elf routine. */ + gld${EMULATION_NAME}_before_allocation (); - suffix += sizeof ".so." - 1; - - if (strncmp (f, l->name, suffix - l->name) == 0) - { - /* Here we know that S is a dynamic object FOO.SO.VER1, and - the object we are considering needs a dynamic object - FOO.SO.VER2, and VER1 and VER2 are different. This - appears to be a version mismatch, so we tell the caller - to try a different version of this library. */ - global_vercheck_failed = true; - return; - } - } -} - -/* Place an orphan section. We use this to put random SHF_ALLOC - sections in the right segment. */ - -static asection *hold_section; -static lang_output_section_statement_type *hold_use; -static lang_output_section_statement_type *hold_text; -static lang_output_section_statement_type *hold_rodata; -static lang_output_section_statement_type *hold_data; -static lang_output_section_statement_type *hold_bss; -static lang_output_section_statement_type *hold_rel; -static lang_output_section_statement_type *hold_interp; - -/*ARGSUSED*/ -static boolean -gld${EMULATION_NAME}_place_orphan (file, s) - lang_input_statement_type *file; - asection *s; -{ - lang_output_section_statement_type *place; - asection *snew, **pps; - lang_statement_list_type *old; - lang_statement_list_type add; - etree_type *address; - const char *secname, *ps; - const char *outsecname; - lang_output_section_statement_type *os; - - if ((s->flags & SEC_ALLOC) == 0) - return false; - - /* Look through the script to see where to place this section. */ - hold_section = s; - hold_use = NULL; - lang_for_each_statement (gld${EMULATION_NAME}_place_section); - - if (hold_use != NULL) - { - /* We have already placed a section with this name. */ - wild_doit (&hold_use->children, s, hold_use, file); - return true; - } - - secname = bfd_get_section_name (s->owner, s); - - /* If this is a final link, then always put .gnu.warning.SYMBOL - sections into the .text section to get them out of the way. */ - if (! link_info.shared - && ! link_info.relocateable - && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0 - && hold_text != NULL) - { - wild_doit (&hold_text->children, s, hold_text, file); - return true; - } - - /* Decide which segment the section should go in based on the - section name and section flags. We put loadable .note sections - right after the .interp section, so that the PT_NOTE segment is - stored right after the program headers where the OS can read it - in the first page. */ - place = NULL; - if (s->flags & SEC_EXCLUDE) - return false; - else if ((s->flags & SEC_LOAD) != 0 - && strncmp (secname, ".note", 4) == 0 - && hold_interp != NULL) - place = hold_interp; - else if ((s->flags & SEC_HAS_CONTENTS) == 0 - && hold_bss != NULL) - place = hold_bss; - else if ((s->flags & SEC_READONLY) == 0 - && hold_data != NULL) - place = hold_data; - else if (strncmp (secname, ".rel", 4) == 0 - && hold_rel != NULL) - place = hold_rel; - else if ((s->flags & SEC_CODE) == 0 - && (s->flags & SEC_READONLY) != 0 - && hold_rodata != NULL) - place = hold_rodata; - else if ((s->flags & SEC_READONLY) != 0 - && hold_text != NULL) - place = hold_text; - if (place == NULL) - return false; - - /* Choose a unique name for the section. This will be needed if the - same section name appears in the input file with different - loadable or allocateable characteristics. */ - outsecname = secname; - if (bfd_get_section_by_name (output_bfd, outsecname) != NULL) - { - unsigned int len; - char *newname; - unsigned int i; - - len = strlen (outsecname); - newname = xmalloc (len + 5); - strcpy (newname, outsecname); - i = 0; - do - { - sprintf (newname + len, "%d", i); - ++i; - } - while (bfd_get_section_by_name (output_bfd, newname) != NULL); - - outsecname = newname; - } - - /* Create the section in the output file, and put it in the right - place. This shuffling is to make the output file look neater. */ - snew = bfd_make_section (output_bfd, outsecname); - if (snew == NULL) - einfo ("%P%F: output format %s cannot represent section called %s\n", - output_bfd->xvec->name, outsecname); - if (place->bfd_section != NULL) - { - for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) - ; - *pps = snew->next; - snew->next = place->bfd_section->next; - place->bfd_section->next = snew; - } - - /* Start building a list of statements for this section. */ - old = stat_ptr; - stat_ptr = &add; - lang_list_init (stat_ptr); - - /* If the name of the section is representable in C, then create - symbols to mark the start and the end of the section. */ - for (ps = outsecname; *ps != '\0'; ps++) - if (! isalnum ((unsigned char) *ps) && *ps != '_') - break; - if (*ps == '\0' && config.build_constructors) - { - char *symname; - - symname = (char *) xmalloc (ps - outsecname + sizeof "__start_"); - sprintf (symname, "__start_%s", outsecname); - lang_add_assignment (exp_assop ('=', symname, - exp_unop (ALIGN_K, - exp_intop ((bfd_vma) 1 - << s->alignment_power)))); - } - - if (! link_info.relocateable) - address = NULL; - else - address = exp_intop ((bfd_vma) 0); - - lang_enter_output_section_statement (outsecname, address, 0, - (bfd_vma) 0, - (etree_type *) NULL, - (etree_type *) NULL, - (etree_type *) NULL); - - os = lang_output_section_statement_lookup (outsecname); - wild_doit (&os->children, s, os, file); - - lang_leave_output_section_statement - ((bfd_vma) 0, "*default*", (struct lang_output_section_phdr_list *) NULL, - "*default*"); - stat_ptr = &add; - - if (*ps == '\0' && config.build_constructors) - { - char *symname; - - symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_"); - sprintf (symname, "__stop_%s", outsecname); - lang_add_assignment (exp_assop ('=', symname, - exp_nameop (NAME, "."))); - } - - /* Now stick the new statement list right after PLACE. */ - *add.tail = place->header.next; - place->header.next = add.head; - - stat_ptr = old; - - return true; -} - -static void -gld${EMULATION_NAME}_place_section (s) - lang_statement_union_type *s; -{ - lang_output_section_statement_type *os; - - if (s->header.type != lang_output_section_statement_enum) - return; - - os = &s->output_section_statement; - - if (strcmp (os->name, hold_section->name) == 0 - && os->bfd_section != NULL - && ((hold_section->flags & (SEC_LOAD | SEC_ALLOC)) - == (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC)))) - hold_use = os; - - if (strcmp (os->name, ".text") == 0) - hold_text = os; - else if (strcmp (os->name, ".rodata") == 0) - hold_rodata = os; - else if (strcmp (os->name, ".data") == 0) - hold_data = os; - else if (strcmp (os->name, ".bss") == 0) - hold_bss = os; - else if (hold_rel == NULL - && os->bfd_section != NULL - && (os->bfd_section->flags & SEC_ALLOC) != 0 - && strncmp (os->name, ".rel", 4) == 0) - hold_rel = os; - else if (strcmp (os->name, ".interp") == 0) - hold_interp = os; -} - -/* Look through an expression for an assignment statement. */ - -static void -gld${EMULATION_NAME}_find_exp_assignment (exp) - etree_type *exp; -{ - struct bfd_link_hash_entry *h; - - switch (exp->type.node_class) - { - case etree_provide: - h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, - false, false, false); - if (h == NULL) - break; - - /* We call record_link_assignment even if the symbol is defined. - This is because if it is defined by a dynamic object, we - actually want to use the value defined by the linker script, - not the value from the dynamic object (because we are setting - symbols like etext). If the symbol is defined by a regular - object, then, as it happens, calling record_link_assignment - will do no harm. */ - - /* Fall through. */ - case etree_assign: - if (strcmp (exp->assign.dst, ".") != 0) - { - if (! (bfd_elf${ELFSIZE}_record_link_assignment - (output_bfd, &link_info, exp->assign.dst, - exp->type.node_class == etree_provide ? true : false))) - einfo ("%P%F: failed to record assignment to %s: %E\n", - exp->assign.dst); - } - gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); - break; - - case etree_binary: - gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); - gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); - break; - - case etree_trinary: - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); - break; - - case etree_unary: - gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); - break; - - default: - break; - } -} - -/* This is called by the before_allocation routine via - lang_for_each_statement. It locates any assignment statements, and - tells the ELF backend about them, in case they are assignments to - symbols which are referred to by dynamic objects. */ - -static void -gld${EMULATION_NAME}_find_statement_assignment (s) - lang_statement_union_type *s; -{ - if (s->header.type == lang_assignment_statement_enum) - gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); -} - -/* This is called after the sections have been attached to output - sections, but before any sizes or addresses have been set. */ - -static void -gld${EMULATION_NAME}_before_allocation () -{ - const char *rpath; - asection *sinterp; - - /* If we are going to make any variable assignments, we need to let - the ELF backend know about them in case the variables are - referred to by dynamic objects. */ - lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); - - /* Let the ELF backend work out the sizes of any sections required - by dynamic linking. */ - rpath = command_line.rpath; - if (rpath == NULL) - rpath = (const char *) getenv ("LD_RUN_PATH"); - if (! (bfd_elf${ELFSIZE}_size_dynamic_sections - (output_bfd, command_line.soname, rpath, - command_line.export_dynamic, command_line.filter_shlib, - (const char * const *) command_line.auxiliary_filters, - &link_info, &sinterp, lang_elf_version_info))) - einfo ("%P%F: failed to set dynamic section sizes: %E\n"); - - /* Let the user override the dynamic linker we are using. */ - if (command_line.interpreter != NULL - && sinterp != NULL) - { - sinterp->contents = (bfd_byte *) command_line.interpreter; - sinterp->_raw_size = strlen (command_line.interpreter) + 1; - } - - /* Look for any sections named .gnu.warning. As a GNU extensions, - we treat such sections as containing warning messages. We print - out the warning message, and then zero out the section size so - that it does not get copied into the output file. */ - - { - LANG_FOR_EACH_INPUT_STATEMENT (is) - { - asection *s; - bfd_size_type sz; - char *msg; - boolean ret; - - if (is->just_syms_flag) - continue; - - s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); - if (s == NULL) - continue; - - sz = bfd_section_size (is->the_bfd, s); - msg = xmalloc ((size_t) sz + 1); - if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz)) - einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", - is->the_bfd); - msg[sz] = '\0'; - ret = link_info.callbacks->warning (&link_info, msg, - (const char *) NULL, - is->the_bfd, (asection *) NULL, - (bfd_vma) 0); - ASSERT (ret); - free (msg); - - /* Clobber the section size, so that we don't waste copying the - warning into the output file. */ - s->_raw_size = 0; - } - } - - /* we should be able to set the size of the interworking stub section */ + /* We should be able to set the size of the interworking stub section */ /* Here we rummage through the found bfds to collect glue information */ /* FIXME: should this be based on a command line option? krk@cygnus.com */ @@ -1162,6 +96,9 @@ gld${EMULATION_NAME}_before_allocation () bfd_elf32_arm_allocate_interworking_sections (& link_info); } + +static void gld${EMULATION_NAME}_finish PARAMS ((void)); + static void gld${EMULATION_NAME}_finish PARAMS((void)) { @@ -1170,7 +107,8 @@ gld${EMULATION_NAME}_finish PARAMS((void)) if (thumb_entry_symbol == NULL) return; - h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, false, false, true); + h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, + false, false, true); if (h != (struct bfd_link_hash_entry *) NULL && (h->type == bfd_link_hash_defined @@ -1202,92 +140,48 @@ gld${EMULATION_NAME}_finish PARAMS((void)) entry_symbol = buffer; } else - einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol); + einfo (_("%P: warning: connot find thumb start symbol %s\n"), + thumb_entry_symbol); } -static char * -gld${EMULATION_NAME}_get_script (isfile) - int *isfile; EOF -if test -n "$COMPILE_IN" -then -# Scripts compiled in. +# Define some shell vars to insert bits of code into the standard elf +# parse_args and list_options functions. +# +PARSE_AND_LIST_PROLOGUE=' +#define OPTION_THUMB_ENTRY 301 +' -# sed commands to quote an ld script as a C string. -sc="-f stringify.sed" +PARSE_AND_LIST_SHORTOPTS=p -cat >>e${EMULATION_NAME}.c <<EOF -{ - *isfile = 0; - - if (link_info.relocateable == true && config.build_constructors == true) - return -EOF -sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c -echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c -echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c -echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c -if test -n "$GENERATE_SHLIB_SCRIPT" ; then - echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c - sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c -fi -echo ' ; else return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c -echo '; }' >> e${EMULATION_NAME}.c +PARSE_AND_LIST_LONGOPTS=' + { "no-pipeline-knowledge", no_argument, NULL, '\'p\''}, + { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, +' -else -# Scripts read from the filesystem. +PARSE_AND_LIST_OPTIONS=' + fprintf (file, _(" -p --no-pipeline-knowledge Stop the linker knowing about the pipeline length\n")); + fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n")); +' -cat >>e${EMULATION_NAME}.c <<EOF -{ - *isfile = 1; +PARSE_AND_LIST_ARGS_CASES=' + case '\'p\'': + no_pipeline_knowledge = 1; + break; - if (link_info.relocateable == true && config.build_constructors == true) - return "ldscripts/${EMULATION_NAME}.xu"; - else if (link_info.relocateable == true) - return "ldscripts/${EMULATION_NAME}.xr"; - else if (!config.text_read_only) - return "ldscripts/${EMULATION_NAME}.xbn"; - else if (!config.magic_demand_paged) - return "ldscripts/${EMULATION_NAME}.xn"; - else if (link_info.shared) - return "ldscripts/${EMULATION_NAME}.xs"; - else - return "ldscripts/${EMULATION_NAME}.x"; -} -EOF + case OPTION_THUMB_ENTRY: + thumb_entry_symbol = optarg; + break; +' -fi +# We have our own after_open and before_allocation functions, but they call +# the standard routines, so give them a different name. +LDEMUL_AFTER_OPEN=arm_elf_after_open +LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation -cat >>e${EMULATION_NAME}.c <<EOF +# Replace the elf before_parse function with our own. +LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse -struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = -{ - gld${EMULATION_NAME}_before_parse, - syslib_default, - hll_default, - after_parse_default, - gld${EMULATION_NAME}_after_open, - after_allocation_default, - set_output_arch_default, - ldemul_default_target, - gld${EMULATION_NAME}_before_allocation, - gld${EMULATION_NAME}_get_script, - "${EMULATION_NAME}", - "${OUTPUT_FORMAT}", - gld${EMULATION_NAME}_finish, - NULL, /* create output section statements */ - gld${EMULATION_NAME}_open_dynamic_archive, - gld${EMULATION_NAME}_place_orphan, - NULL, /* set symbols */ - gld${EMULATION_NAME}_parse_args, - NULL, /* unrecognized file */ - gld${EMULATION_NAME}_list_options, - NULL, /* recognized file */ - NULL /* find_potential_libraries */ -}; -EOF +# Call the extra arm-elf function +LDEMUL_FINISH=gld${EMULATION_NAME}_finish diff --git a/contrib/binutils/ld/emultempl/armelf_oabi.em b/contrib/binutils/ld/emultempl/armelf_oabi.em index d8ca87a..7936d48 100644 --- a/contrib/binutils/ld/emultempl/armelf_oabi.em +++ b/contrib/binutils/ld/emultempl/armelf_oabi.em @@ -4,7 +4,8 @@ cat >e${EMULATION_NAME}.c <<EOF /* This file is is generated by a shell script. DO NOT EDIT! */ /* emulate the original gld for the given ${EMULATION_NAME} - Copyright (C) 1991, 93, 96, 97, 98, 1999 Free Software Foundation, Inc. + Copyright (C) 1991, 93, 96, 97, 98, 99, 2000 + Free Software Foundation, Inc. Written by Steve Chamberlain steve@cygnus.com This file is part of GLD, the Gnu Linker. @@ -39,12 +40,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ld.h" #include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" #include "ldmisc.h" #include "ldexp.h" #include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); diff --git a/contrib/binutils/ld/emultempl/generic.em b/contrib/binutils/ld/emultempl/generic.em index 6635e09..f96323e 100644 --- a/contrib/binutils/ld/emultempl/generic.em +++ b/contrib/binutils/ld/emultempl/generic.em @@ -4,7 +4,8 @@ cat >e${EMULATION_NAME}.c <<EOF /* This file is is generated by a shell script. DO NOT EDIT! */ /* emulate the original gld for the given ${EMULATION_NAME} - Copyright (C) 1991, 93, 94, 95, 96, 1999 Free Software Foundation, Inc. + Copyright (C) 1991, 93, 94, 95, 96, 99, 2000 + Free Software Foundation, Inc. Written by Steve Chamberlain steve@cygnus.com This file is part of GLD, the Gnu Linker. @@ -31,10 +32,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ld.h" #include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" #include "ldmisc.h" +#include "ldexp.h" +#include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" + static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); diff --git a/contrib/binutils/ld/emultempl/linux.em b/contrib/binutils/ld/emultempl/linux.em index dfa855e..31d816d 100644 --- a/contrib/binutils/ld/emultempl/linux.em +++ b/contrib/binutils/ld/emultempl/linux.em @@ -4,7 +4,8 @@ cat >e${EMULATION_NAME}.c <<EOF /* This file is is generated by a shell script. DO NOT EDIT! */ /* Linux a.out emulation code for ${EMULATION_NAME} - Copyright (C) 1991, 93, 94, 95, 96, 98, 1999 Free Software Foundation, Inc. + Copyright (C) 1991, 93, 94, 95, 96, 98, 99, 2000 + Free Software Foundation, Inc. Written by Steve Chamberlain <sac@cygnus.com> Linux support by Eric Youngdale <ericy@cais.cais.com> @@ -32,11 +33,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ld.h" #include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" #include "ldmisc.h" #include "ldexp.h" #include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); static boolean gld${EMULATION_NAME}_open_dynamic_archive diff --git a/contrib/binutils/ld/emultempl/pe.em b/contrib/binutils/ld/emultempl/pe.em index d13bb40..fcbf835 100644 --- a/contrib/binutils/ld/emultempl/pe.em +++ b/contrib/binutils/ld/emultempl/pe.em @@ -37,11 +37,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ldgram.h" #include "ldexp.h" #include "ldlang.h" +#include "ldfile.h" #include "ldemul.h" #include "ldlex.h" #include "ldmisc.h" #include "ldctor.h" -#include "ldfile.h" #include "coff/internal.h" /* FIXME: This is a BFD internal header file, and we should not be @@ -102,11 +102,11 @@ static void gld_${EMULATION_NAME}_after_parse PARAMS ((void)); static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void)); static boolean gld_${EMULATION_NAME}_place_orphan PARAMS ((lang_input_statement_type *, asection *)); -static void gld${EMULATION_NAME}_place_section - PARAMS ((lang_statement_union_type *)); static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *)); static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **)); static void gld_${EMULATION_NAME}_finish PARAMS ((void)); +static boolean gld_${EMULATION_NAME}_open_dynamic_archive + PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); static struct internal_extra_pe_aouthdr pe; static int dll; @@ -114,10 +114,12 @@ static int support_old_code = 0; static char * thumb_entry_symbol = NULL; static lang_assignment_statement_type *image_base_statement = 0; -static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */ #ifdef DLL_SUPPORT -static char *pe_out_def_filename = 0; -static char *pe_implib_filename = 0; +static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */ +static char *pe_out_def_filename = NULL; +static char *pe_implib_filename = NULL; +static int pe_enable_auto_image_base = 0; +static char *pe_dll_search_prefix = NULL; #endif extern const char *output_filename; @@ -169,9 +171,12 @@ gld_${EMULATION_NAME}_before_parse() #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1) #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1) #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1) +#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1) +#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1) +#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1) +#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1) -static struct option longopts[] = -{ +static struct option longopts[] = { /* PE options */ {"base-file", required_argument, NULL, OPTION_BASE_FILE}, {"dll", no_argument, NULL, OPTION_DLL}, @@ -203,6 +208,10 @@ static struct option longopts[] = {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME}, {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, + {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, + {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, + {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, + {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, #endif {NULL, no_argument, NULL, 0} }; @@ -282,6 +291,12 @@ gld_${EMULATION_NAME}_list_options (file) fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n")); fprintf (file, _(" --compat-implib Create backward compatible import libs;\n")); fprintf (file, _(" create __imp_<SYMBOL> as well.\n")); + fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n")); + fprintf (file, _(" unless user specifies one\n")); + fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); + fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll witout an\n")); + fprintf (file, _(" importlib, use <string><basename>.dll \n")); + fprintf (file, _(" in preference to lib<basename>.dll \n")); #endif } @@ -540,11 +555,57 @@ gld_${EMULATION_NAME}_parse_args(argc, argv) case OPTION_IMP_COMPAT: pe_dll_compat_implib = 1; break; + case OPTION_ENABLE_AUTO_IMAGE_BASE: + pe_enable_auto_image_base = 1; + break; + case OPTION_DISABLE_AUTO_IMAGE_BASE: + pe_enable_auto_image_base = 0; + break; + case OPTION_DLL_SEARCH_PREFIX: + pe_dll_search_prefix = xstrdup( optarg ); + break; + case OPTION_NO_DEFAULT_EXCLUDES: + pe_dll_do_default_excludes = 0; + break; #endif } return 1; } + +#ifdef DLL_SUPPORT +static unsigned long +strhash (const char *str) +{ + const unsigned char *s; + unsigned long hash; + unsigned int c; + unsigned int len; + + hash = 0; + len = 0; + s = (const unsigned char *) str; + while ((c = *s++) != '\0') + { + hash += c + (c << 17); + hash ^= hash >> 2; + ++len; + } + hash += len + (len << 17); + hash ^= hash >> 2; + + return hash; +} + +/* Use the output file to create a image base for relocatable DLLs. */ +static unsigned long +compute_dll_image_base (const char *ofile) +{ + unsigned long hash = strhash (ofile); + return 0x60000000 | ((hash << 16) & 0x0FFC0000); +} +#endif + /* Assign values to the special symbols before the linker script is read. */ @@ -561,7 +622,12 @@ gld_${EMULATION_NAME}_set_symbols () if (link_info.relocateable) init[IMAGEBASEOFF].value = 0; else if (init[DLLOFF].value || link_info.shared) +#ifdef DLL_SUPPORT + init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ? + compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE; +#else init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; +#endif else init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; } @@ -626,6 +692,7 @@ gld_${EMULATION_NAME}_after_parse () ldlang_add_undef (entry_symbol); } +#ifdef DLL_SUPPORT static struct bfd_link_hash_entry *pe_undef_found_sym; static boolean @@ -644,7 +711,6 @@ pe_undef_cdecl_match (h, string) return true; } -#ifdef DLL_SUPPORT static void pe_fixup_stdcalls () { @@ -761,6 +827,116 @@ gld_${EMULATION_NAME}_after_open () #endif { + /* This next chunk of code tries to detect the case where you have + two import libraries for the same DLL (specifically, + symbolically linking libm.a and libc.a in cygwin to + libcygwin.a). In those cases, it's possible for function + thunks from the second implib to be used but without the + head/tail objects, causing an improper import table. We detect + those cases and rename the "other" import libraries to match + the one the head/tail come from, so that the linker will sort + things nicely and produce a valid import table. */ + + LANG_FOR_EACH_INPUT_STATEMENT (is) + { + if (is->the_bfd->my_archive) + { + int idata2 = 0, reloc_count=0, is_imp = 0; + asection *sec; + + /* See if this is an import library thunk. */ + for (sec = is->the_bfd->sections; sec; sec = sec->next) + { + if (strcmp (sec->name, ".idata\$2") == 0) + idata2 = 1; + if (strncmp (sec->name, ".idata\$", 7) == 0) + is_imp = 1; + reloc_count += sec->reloc_count; + } + + if (is_imp && !idata2 && reloc_count) + { + /* It is, look for the reference to head and see if it's + from our own library. */ + for (sec = is->the_bfd->sections; sec; sec = sec->next) + { + int i; + long symsize; + long relsize; + asymbol **symbols; + arelent **relocs; + int nrelocs; + + symsize = bfd_get_symtab_upper_bound (is->the_bfd); + if (symsize < 1) + break; + relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); + if (relsize < 1) + break; + + symbols = (asymbol **) xmalloc (symsize); + symsize = bfd_canonicalize_symtab (is->the_bfd, symbols); + if (symsize < 0) + { + einfo ("%X%P: unable to process symbols: %E"); + return; + } + + relocs = (arelent **) xmalloc ((size_t) relsize); + nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, + relocs, symbols); + if (nrelocs < 0) + { + free (relocs); + einfo ("%X%P: unable to process relocs: %E"); + return; + } + + for (i = 0; i < nrelocs; i++) + { + struct symbol_cache_entry *s; + struct bfd_link_hash_entry * blhe; + bfd *other_bfd; + char *n; + + s = (relocs[i]->sym_ptr_ptr)[0]; + + if (s->flags & BSF_LOCAL) + continue; + + /* Thunk section with reloc to another bfd. */ + blhe = bfd_link_hash_lookup (link_info.hash, + s->name, + false, false, true); + + if (blhe == NULL + || blhe->type != bfd_link_hash_defined) + continue; + + other_bfd = blhe->u.def.section->owner; + + if (strcmp (is->the_bfd->my_archive->filename, + other_bfd->my_archive->filename) == 0) + continue; + + /* Rename this implib to match the other. */ + n = (char *) xmalloc (strlen (other_bfd->my_archive->filename) + 1); + + strcpy (n, other_bfd->my_archive->filename); + + is->the_bfd->my_archive->filename = n; + } + + free (relocs); + /* Note - we do not free the symbols, + they are now cached in the BFD. */ + } + } + } + } + } + + { int is_ms_arch = 0; bfd *cur_arch = 0; lang_input_statement_type *is2; @@ -816,7 +992,7 @@ gld_${EMULATION_NAME}_after_open () sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); is->the_bfd->filename = new_name; - new_name = xmalloc (strlen(is->filename) + 3); + new_name = xmalloc (strlen (is->filename) + 3); sprintf (new_name, "%s.%c", is->filename, seq); is->filename = new_name; } @@ -870,10 +1046,10 @@ gld_${EMULATION_NAME}_before_allocation() #endif /* TARGET_IS_armpe */ } - +#ifdef DLL_SUPPORT /* This is called when an input file isn't recognized as a BFD. We check here for .DEF files and pull them in automatically. */ -#ifdef DLL_SUPPORT + static int saw_option(char *option) { @@ -883,7 +1059,7 @@ saw_option(char *option) return init[i].inited; return 0; } -#endif +#endif /* DLL_SUPPORT */ static boolean gld_${EMULATION_NAME}_unrecognized_file(entry) @@ -1049,6 +1225,7 @@ gld_${EMULATION_NAME}_finish () pe_dll_generate_implib (pe_def_file, pe_implib_filename); } #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) + /* ARM doesn't need relocs. */ else { pe_exe_fill_sections (output_bfd, &link_info); @@ -1057,7 +1234,7 @@ gld_${EMULATION_NAME}_finish () if (pe_out_def_filename) pe_dll_generate_def_file (pe_out_def_filename); -#endif +#endif /* DLL_SUPPORT */ } @@ -1074,16 +1251,12 @@ gld_${EMULATION_NAME}_finish () default linker script using wildcards, and are sorted by sort_sections. */ -static asection *hold_section; -static char *hold_section_name; -static lang_output_section_statement_type *hold_use; -static lang_output_section_statement_type *hold_text; -static lang_output_section_statement_type *hold_rdata; -static lang_output_section_statement_type *hold_data; -static lang_output_section_statement_type *hold_bss; - -/* Place an orphan section. We use this to put random SHF_ALLOC - sections in the right segment. */ +struct orphan_save +{ + lang_output_section_statement_type *os; + asection **section; + lang_statement_union_type **stmt; +}; /*ARGSUSED*/ static boolean @@ -1092,17 +1265,16 @@ gld_${EMULATION_NAME}_place_orphan (file, s) asection *s; { const char *secname; + char *hold_section_name; char *dollar = NULL; - - if ((s->flags & SEC_ALLOC) == 0) - return false; + const char *ps = NULL; + lang_output_section_statement_type *os; + lang_statement_list_type add_child; secname = bfd_get_section_name (s->owner, s); /* Look through the script to see where to place this section. */ - hold_section = s; - hold_section_name = xstrdup (secname); if (!link_info.relocateable) { @@ -1111,34 +1283,51 @@ gld_${EMULATION_NAME}_place_orphan (file, s) *dollar = '\0'; } - hold_use = NULL; - lang_for_each_statement (gld${EMULATION_NAME}_place_section); + os = lang_output_section_find (hold_section_name); - if (hold_use == NULL) + lang_list_init (&add_child); + + if (os != NULL + && os->bfd_section != NULL + && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0) + { + wild_doit (&add_child, s, os, file); + } + else { - lang_output_section_statement_type *place; + struct orphan_save *place; + static struct orphan_save hold_text; + static struct orphan_save hold_rdata; + static struct orphan_save hold_data; + static struct orphan_save hold_bss; char *outsecname; - asection *snew, **pps; lang_statement_list_type *old; lang_statement_list_type add; etree_type *address; /* Try to put the new output section in a reasonable place based on the section name and section flags. */ +#define HAVE_SECTION(hold, name) \ +(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL) + place = NULL; - if ((s->flags & SEC_HAS_CONTENTS) == 0 - && hold_bss != NULL) - place = hold_bss; + if ((s->flags & SEC_ALLOC) == 0) + ; + else if ((s->flags & SEC_HAS_CONTENTS) == 0 + && HAVE_SECTION (hold_bss, ".bss")) + place = &hold_bss; else if ((s->flags & SEC_READONLY) == 0 - && hold_data != NULL) - place = hold_data; + && HAVE_SECTION (hold_data, ".data")) + place = &hold_data; else if ((s->flags & SEC_CODE) == 0 && (s->flags & SEC_READONLY) != 0 - && hold_rdata != NULL) - place = hold_rdata; + && HAVE_SECTION (hold_rdata, ".rdata")) + place = &hold_rdata; else if ((s->flags & SEC_READONLY) != 0 - && hold_text != NULL) - place = hold_text; + && HAVE_SECTION (hold_text, ".text")) + place = &hold_text; + +#undef HAVE_SECTION /* Choose a unique name for the section. This will be needed if the same section name appears in the input file with @@ -1165,32 +1354,33 @@ gld_${EMULATION_NAME}_place_orphan (file, s) outsecname = newname; } - /* We don't want to free OUTSECNAME, as it may get attached to - the output section statement. */ - - /* Create the section in the output file, and put it in the - right place. This shuffling is to make the output file look - neater. */ - snew = bfd_make_section (output_bfd, outsecname); - if (snew == NULL) - einfo ("%P%F: output format %s cannot represent section called %s\n", - output_bfd->xvec->name, outsecname); - if (place != NULL && place->bfd_section != NULL) - { - for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) - ; - *pps = snew->next; - snew->next = place->bfd_section->next; - place->bfd_section->next = snew; - } - /* Start building a list of statements for this section. */ old = stat_ptr; stat_ptr = &add; lang_list_init (stat_ptr); - if (link_info.relocateable) - address = NULL; + if (config.build_constructors) + { + /* If the name of the section is representable in C, then create + symbols to mark the start and the end of the section. */ + for (ps = outsecname; *ps != '\0'; ps++) + if (! isalnum ((unsigned char) *ps) && *ps != '_') + break; + if (*ps == '\0') + { + char *symname; + etree_type *e_align; + + symname = (char *) xmalloc (ps - outsecname + sizeof "___start_"); + sprintf (symname, "___start_%s", outsecname); + e_align = exp_unop (ALIGN_K, + exp_intop ((bfd_vma) 1 << s->alignment_power)); + lang_add_assignment (exp_assop ('=', symname, e_align)); + } + } + + if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) + address = exp_intop ((bfd_vma) 0); else { /* All sections in an executable must be aligned to a page @@ -1199,105 +1389,226 @@ gld_${EMULATION_NAME}_place_orphan (file, s) exp_nameop (NAME, "__section_alignment__")); } - lang_enter_output_section_statement (outsecname, address, 0, - (bfd_vma) 0, - (etree_type *) NULL, - (etree_type *) NULL, - (etree_type *) NULL); + os = lang_enter_output_section_statement (outsecname, address, 0, + (bfd_vma) 0, + (etree_type *) NULL, + (etree_type *) NULL, + (etree_type *) NULL); - hold_use = lang_output_section_statement_lookup (outsecname); + wild_doit (&add_child, s, os, file); lang_leave_output_section_statement ((bfd_vma) 0, "*default*", - (struct lang_output_section_phdr_list *) NULL, - "*default*"); + (struct lang_output_section_phdr_list *) NULL, "*default*"); - /* Now stick the new statement list right after PLACE. */ - if (place != NULL) - { - *add.tail = place->header.next; - place->header.next = add.head; + if (config.build_constructors && *ps == '\0') + { + char *symname; + + /* lang_leave_ouput_section_statement resets stat_ptr. Put + stat_ptr back where we want it. */ + if (place != NULL) + stat_ptr = &add; + + symname = (char *) xmalloc (ps - outsecname + sizeof "___stop_"); + sprintf (symname, "___stop_%s", outsecname); + lang_add_assignment (exp_assop ('=', symname, + exp_nameop (NAME, "."))); } stat_ptr = old; - } - - if (dollar == NULL) - wild_doit (&hold_use->children, s, hold_use, file); - else - { - lang_statement_union_type **pl; - boolean found_dollar; - lang_statement_list_type list; - - /* The section name has a '$'. Sort it with the other '$' - sections. */ - found_dollar = false; - for (pl = &hold_use->children.head; *pl != NULL; pl = &(*pl)->next) + if (place != NULL) { - lang_input_section_type *ls; - const char *lname; + asection *snew, **pps; + + snew = os->bfd_section; + if (place->os->bfd_section != NULL || place->section != NULL) + { + /* Shuffle the section to make the output file look neater. */ + if (place->section == NULL) + { +#if 0 + /* Finding the end of the list is a little tricky. We + make a wild stab at it by comparing section flags. */ + flagword first_flags = place->os->bfd_section->flags; + for (pps = &place->os->bfd_section->next; + *pps != NULL && (*pps)->flags == first_flags; + pps = &(*pps)->next) + ; + place->section = pps; +#else + /* Put orphans after the first section on the list. */ + place->section = &place->os->bfd_section->next; +#endif + } - if ((*pl)->header.type != lang_input_section_enum) - continue; + /* Unlink the section. */ + for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) + ; + *pps = snew->next; - ls = &(*pl)->input_section; + /* Now tack it on to the "place->os" section list. */ + snew->next = *place->section; + *place->section = snew; + } + place->section = &snew->next; /* Save the end of this list. */ - lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section); - if (strchr (lname, '$') == NULL) + if (place->stmt == NULL) { - if (found_dollar) - break; + /* Put the new statement list right at the head. */ + *add.tail = place->os->header.next; + place->os->header.next = add.head; } else { - found_dollar = true; - if (strcmp (secname, lname) < 0) - break; + /* Put it after the last orphan statement we added. */ + *add.tail = *place->stmt; + *place->stmt = add.head; } - } - - lang_list_init (&list); - wild_doit (&list, s, hold_use, file); - if (list.head != NULL) - { - ASSERT (list.head->next == NULL); - list.head->next = *pl; - *pl = list.head; + place->stmt = add.tail; /* Save the end of this list. */ } } + { + lang_statement_union_type **pl = &os->children.head; + + if (dollar != NULL) + { + boolean found_dollar; + + /* The section name has a '$'. Sort it with the other '$' + sections. */ + + found_dollar = false; + for ( ; *pl != NULL; pl = &(*pl)->next) + { + lang_input_section_type *ls; + const char *lname; + + if ((*pl)->header.type != lang_input_section_enum) + continue; + + ls = &(*pl)->input_section; + + lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section); + if (strchr (lname, '$') == NULL) + { + if (found_dollar) + break; + } + else + { + found_dollar = true; + if (strcmp (secname, lname) < 0) + break; + } + } + } + + if (add_child.head != NULL) + { + add_child.head->next = *pl; + *pl = add_child.head; + } + } + free (hold_section_name); return true; } -static void -gld${EMULATION_NAME}_place_section (s) - lang_statement_union_type *s; +static boolean +gld_${EMULATION_NAME}_open_dynamic_archive (arch, search, entry) + const char * arch ATTRIBUTE_UNUSED; + search_dirs_type * search; + lang_input_statement_type * entry; { - lang_output_section_statement_type *os; + const char * filename; + char * string; - if (s->header.type != lang_output_section_statement_enum) - return; + if (! entry->is_archive) + return false; - os = &s->output_section_statement; + filename = entry->filename; - if (strcmp (os->name, hold_section_name) == 0 - && os->bfd_section != NULL - && ((hold_section->flags & (SEC_LOAD | SEC_ALLOC)) - == (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC)))) - hold_use = os; - - if (strcmp (os->name, ".text") == 0) - hold_text = os; - else if (strcmp (os->name, ".rdata") == 0) - hold_rdata = os; - else if (strcmp (os->name, ".data") == 0) - hold_data = os; - else if (strcmp (os->name, ".bss") == 0) - hold_bss = os; + string = (char *) xmalloc (strlen (search->name) + + strlen (filename) + + sizeof "/lib.a.dll" +#ifdef DLL_SUPPORT + + (pe_dll_search_prefix ? strlen (pe_dll_search_prefix) : 0) +#endif + + 1); + + /* Try "libfoo.dll.a" first (preferred explicit import library for dll's */ + sprintf (string, "%s/lib%s.dll.a", search->name, filename); + + if (! ldfile_try_open_bfd (string, entry)) + { + /* Try "foo.dll.a" next (alternate explicit import library for dll's */ + sprintf (string, "%s/%s.dll.a", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { +/* + Try libfoo.a next. Normally, this would be interpreted as a static + library, but it *could* be an import library. For backwards compatibility, + libfoo.a needs to ==precede== libfoo.dll and foo.dll in the search, + or sometimes errors occur when building legacy packages. + + Putting libfoo.a here means that in a failure case (i.e. the library + -lfoo is not found) we will search for libfoo.a twice before + giving up -- once here, and once when searching for a "static" lib. + for a "static" lib. +*/ + /* Try "libfoo.a" (import lib, or static lib, but must + take precedence over dll's) */ + sprintf (string, "%s/lib%s.a", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { +#ifdef DLL_SUPPORT + if (pe_dll_search_prefix) + { + /* Try "<prefix>foo.dll" (preferred dll name, if specified) */ + sprintf (string, "%s/%s%s.dll", search->name, pe_dll_search_prefix, filename); + if (! ldfile_try_open_bfd (string, entry)) + { + /* Try "libfoo.dll" (default preferred dll name) */ + sprintf (string, "%s/lib%s.dll", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { + /* Finally, try "foo.dll" (alternate dll name) */ + sprintf (string, "%s/%s.dll", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { + free (string); + return false; + } + } + } + } + else /* pe_dll_search_prefix not specified */ +#endif + { + /* Try "libfoo.dll" (preferred dll name) */ + sprintf (string, "%s/lib%s.dll", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { + /* Finally, try "foo.dll" (alternate dll name) */ + sprintf (string, "%s/%s.dll", search->name, filename); + if (! ldfile_try_open_bfd (string, entry)) + { + free (string); + return false; + } + } + } + } + } + } + + entry->filename = string; + + return true; } static int @@ -1353,7 +1664,7 @@ struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = "${OUTPUT_FORMAT}", gld_${EMULATION_NAME}_finish, /* finish */ NULL, /* create output section statements */ - NULL, /* open dynamic archive */ + gld_${EMULATION_NAME}_open_dynamic_archive, gld_${EMULATION_NAME}_place_orphan, gld_${EMULATION_NAME}_set_symbols, gld_${EMULATION_NAME}_parse_args, diff --git a/contrib/binutils/ld/emultempl/ticoff.em b/contrib/binutils/ld/emultempl/ticoff.em new file mode 100644 index 0000000..a2ab4db --- /dev/null +++ b/contrib/binutils/ld/emultempl/ticoff.em @@ -0,0 +1,202 @@ +# This shell script emits a C file. -*- C -*- +# It does some substitutions. +(echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) +cat >>e${EMULATION_NAME}.c <<EOF +/* This file is part of GLD, the Gnu Linker. + Copyright 1999, 2000 Free Software Foundation, Inc. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* For TI COFF */ +/* Need to determine load and run pages for output sections */ + +#define TARGET_IS_${EMULATION_NAME} + +#include "bfd.h" +#include "sysdep.h" +#include "bfdlink.h" + +#include "ld.h" +#include "ldmain.h" +#include "ldmisc.h" + +#include "ldexp.h" +#include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" + +#include "getopt.h" + +static int coff_version; + +static void gld_${EMULATION_NAME}_before_parse PARAMS ((void)); +static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *)); +static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **)); +static void gld_${EMULATION_NAME}_list_options PARAMS ((FILE *)); + +/* TI COFF extra command line options */ +#define OPTION_COFF_FORMAT (300 + 1) + +static struct option longopts[] = +{ + /* TI COFF options */ + {"format", required_argument, NULL, OPTION_COFF_FORMAT }, + {NULL, no_argument, NULL, 0} +}; + +static void +gld_${EMULATION_NAME}_list_options (file) + FILE * file; +{ + fprintf (file, _(" --format 0|1|2 Specify which COFF version to use")); +} + +static int +gld_${EMULATION_NAME}_parse_args(argc, argv) + int argc; + char **argv; +{ + int longind; + int optc; + int prevoptind = optind; + int prevopterr = opterr; + int wanterror; + static int lastoptind = -1; + + if (lastoptind != optind) + opterr = 0; + wanterror = opterr; + + lastoptind = optind; + + optc = getopt_long_only (argc, argv, "-", longopts, &longind); + opterr = prevopterr; + + switch (optc) + { + default: + if (wanterror) + xexit (1); + optind = prevoptind; + return 0; + + case OPTION_COFF_FORMAT: + if ((*optarg == '0' || *optarg == '1' || *optarg == '2') + && optarg[1] == '\0') + { + extern void lang_add_output_format + PARAMS ((const char *, const char *, const char *, int)); + static char buf[] = "coffX-${OUTPUT_FORMAT_TEMPLATE}"; + coff_version = *optarg - '0'; + buf[4] = *optarg; + lang_add_output_format (buf, NULL, NULL, 0); + } + else + { + einfo (_("%P%F: invalid COFF format version %s\n"), optarg); + + } + break; + } + return 1; +} + +static void +gld_${EMULATION_NAME}_before_parse() +{ +#ifndef TARGET_ /* I.e., if not generic. */ + ldfile_set_output_arch ("`echo ${ARCH}`"); +#endif /* not TARGET_ */ +} + +static char * +gld_${EMULATION_NAME}_get_script (isfile) + int *isfile; +EOF +if test -n "$COMPILE_IN" +then +# Scripts compiled in. + +# sed commands to quote an ld script as a C string. +sc='s/["\\]/\\&/g +s/$/\\n\\/ +1s/^/"/ +$s/$/n"/ +' +cat >>e${EMULATION_NAME}.c <<EOF +{ + *isfile = 0; + if (link_info.relocateable == true && config.build_constructors == true) + return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`; + else if (link_info.relocateable == true) + return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`; + else if (!config.text_read_only) + return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`; + else if (!config.magic_demand_paged) + return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`; + else + return `sed "$sc" ldscripts/${EMULATION_NAME}.x`; +} +EOF + +else +# Scripts read from the filesystem. + +cat >>e${EMULATION_NAME}.c <<EOF +{ + *isfile = 1; + + if (link_info.relocateable == true && config.build_constructors == true) + return "ldscripts/${EMULATION_NAME}.xu"; + else if (link_info.relocateable == true) + return "ldscripts/${EMULATION_NAME}.xr"; + else if (!config.text_read_only) + return "ldscripts/${EMULATION_NAME}.xbn"; + else if (!config.magic_demand_paged) + return "ldscripts/${EMULATION_NAME}.xn"; + else + return "ldscripts/${EMULATION_NAME}.x"; +} +EOF + +fi + +cat >>e${EMULATION_NAME}.c <<EOF +struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = +{ + gld_${EMULATION_NAME}_before_parse, + syslib_default, + hll_default, + after_parse_default, + after_open_default, + after_allocation_default, + set_output_arch_default, + ldemul_default_target, + before_allocation_default, + gld_${EMULATION_NAME}_get_script, + "${EMULATION_NAME}", + "${OUTPUT_FORMAT}", + NULL, /* finish */ + NULL, /* create output section statements */ + NULL, /* open dynamic archive */ + NULL, /* place orphan */ + NULL, /* set_symbols */ + gld_${EMULATION_NAME}_parse_args, + NULL, /* unrecognized_file */ + gld_${EMULATION_NAME}_list_options, + NULL, /* recognized file */ + NULL /* find_potential_libraries */ +}; +EOF diff --git a/contrib/binutils/ld/emultempl/vanilla.em b/contrib/binutils/ld/emultempl/vanilla.em index 0a74abd..c91d6ca 100644 --- a/contrib/binutils/ld/emultempl/vanilla.em +++ b/contrib/binutils/ld/emultempl/vanilla.em @@ -2,7 +2,7 @@ # It does some substitutions. cat >e${EMULATION_NAME}.c <<EOF /* A vanilla emulation with no defaults - Copyright (C) 1991, 1993 Free Software Foundation, Inc. + Copyright (C) 1991, 92, 93, 94, 2000 Free Software Foundation, Inc. Written by Steve Chamberlain steve@cygnus.com This file is part of GLD, the Gnu Linker. @@ -26,11 +26,14 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ld.h" -#include "ldemul.h" -#include "ldfile.h" #include "ldmisc.h" #include "ldmain.h" +#include "ldexp.h" +#include "ldlang.h" +#include "ldfile.h" +#include "ldemul.h" + static void vanilla_before_parse() { } |