# This shell script emits a C file. -*- C -*-
-# Copyright 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+# Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+# Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
/* Whether to run tls optimization. */
static int no_tls_opt = 0;
+static int no_tls_get_addr_opt = 0;
/* Whether to run opd optimization. */
static int no_opd_opt = 0;
static int no_multi_toc = 0;
/* Whether to emit symbols for stubs. */
-static int emit_stub_syms = 0;
+static int emit_stub_syms = -1;
static asection *toc_section = 0;
static void
ppc_create_output_section_statements (void)
{
- extern const bfd_target bfd_elf64_powerpc_vec;
- extern const bfd_target bfd_elf64_powerpcle_vec;
-
- if (link_info.hash->creator != &bfd_elf64_powerpc_vec
- && link_info.hash->creator != &bfd_elf64_powerpcle_vec)
+ if (!(bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
+ && elf_object_id (link_info.output_bfd) == PPC64_ELF_TDATA))
return;
link_info.wrap_char = '.';
stub_file = lang_add_input_file ("linker stubs",
lang_input_file_is_fake_enum,
NULL);
- stub_file->the_bfd = bfd_create ("linker stubs", output_bfd);
+ stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
if (stub_file->the_bfd == NULL
|| !bfd_set_arch_mach (stub_file->the_bfd,
- bfd_get_arch (output_bfd),
- bfd_get_mach (output_bfd)))
+ bfd_get_arch (link_info.output_bfd),
+ bfd_get_mach (link_info.output_bfd)))
{
einfo ("%F%P: can not create BFD %E\n");
return;
{
if (stub_file != NULL)
{
- if (!ppc64_elf_edit_opd (output_bfd, &link_info, no_opd_opt,
- non_overlapping_opd))
+ if (!no_opd_opt
+ && !ppc64_elf_edit_opd (link_info.output_bfd, &link_info,
+ non_overlapping_opd))
einfo ("%X%P: can not edit %s %E\n", "opd");
- if (ppc64_elf_tls_setup (output_bfd, &link_info) && !no_tls_opt)
+ if (ppc64_elf_tls_setup (link_info.output_bfd, &link_info,
+ no_tls_get_addr_opt)
+ && !no_tls_opt)
{
/* Size the sections. This is premature, but we want to know the
TLS segment layout so that certain optimizations can be done. */
expld.dataseg.phase = exp_dataseg_none;
one_lang_size_sections_pass (NULL, TRUE);
- if (!ppc64_elf_tls_optimize (output_bfd, &link_info))
+ if (!ppc64_elf_tls_optimize (link_info.output_bfd, &link_info))
einfo ("%X%P: TLS problem %E\n");
/* We must not cache anything from the preliminary sizing. */
if (!no_toc_opt
&& !link_info.relocatable
- && !ppc64_elf_edit_toc (output_bfd, &link_info))
+ && !ppc64_elf_edit_toc (link_info.output_bfd, &link_info))
einfo ("%X%P: can not edit %s %E\n", "toc");
}
lang_output_section_statement_type *os;
struct hook_stub_info info;
- stub_sec = bfd_make_section_anyway (stub_file->the_bfd, stub_sec_name);
- if (stub_sec == NULL)
- goto err_ret;
-
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
| SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP);
- if (!bfd_set_section_flags (stub_file->the_bfd, stub_sec, flags))
+ stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
+ stub_sec_name, flags);
+ if (stub_sec == NULL)
goto err_ret;
output_section = input_section->output_section;
to recalculate all the section offsets. This may mean we need to
add even more stubs. */
gld${EMULATION_NAME}_map_segments (TRUE);
- need_laying_out = -1;
-}
-
-/* Call the back-end function to set TOC base after we have placed all
- the sections. */
-static void
-gld${EMULATION_NAME}_after_allocation (void)
-{
if (!link_info.relocatable)
- _bfd_set_gp_value (output_bfd, ppc64_elf_toc (output_bfd));
+ _bfd_set_gp_value (link_info.output_bfd,
+ ppc64_elf_toc (link_info.output_bfd));
+
+ need_laying_out = -1;
}
if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
&& (i->flags & SEC_EXCLUDE) == 0
&& i->output_section != NULL
- && i->output_section->owner == output_bfd)
+ && i->output_section->owner == link_info.output_bfd)
{
if (!ppc64_elf_next_input_section (&link_info, i))
einfo ("%X%P: can not size stub section: %E\n");
}
-/* Final emulation specific call. */
-
+/* Call the back-end function to set TOC base after we have placed all
+ the sections. */
static void
-gld${EMULATION_NAME}_finish (void)
+gld${EMULATION_NAME}_after_allocation (void)
{
- /* e_entry on PowerPC64 points to the function descriptor for
- _start. If _start is missing, default to the first function
- descriptor in the .opd section. */
- entry_section = ".opd";
-
- /* bfd_elf_discard_info just plays with debugging sections,
- ie. doesn't affect any code, so we can delay resizing the
+ /* bfd_elf_discard_info just plays with data and debugging sections,
+ ie. doesn't affect code size, so we can delay resizing the
sections. It's likely we'll resize everything in the process of
adding stubs. */
- if (bfd_elf_discard_info (output_bfd, &link_info))
+ if (bfd_elf_discard_info (link_info.output_bfd, &link_info))
need_laying_out = 1;
/* If generating a relocatable output file, then we don't have any
stubs. */
if (stub_file != NULL && !link_info.relocatable)
{
- int ret = ppc64_elf_setup_section_lists (output_bfd, &link_info,
+ int ret = ppc64_elf_setup_section_lists (link_info.output_bfd,
+ &link_info,
no_multi_toc);
if (ret < 0)
einfo ("%X%P: can not size stub section: %E\n");
else if (ret > 0)
{
- toc_section = bfd_get_section_by_name (output_bfd, ".got");
+ toc_section = bfd_get_section_by_name (link_info.output_bfd, ".got");
if (toc_section != NULL)
lang_for_each_statement (build_toc_list);
- ppc64_elf_reinit_toc (output_bfd, &link_info);
+ ppc64_elf_reinit_toc (link_info.output_bfd, &link_info);
lang_for_each_statement (build_section_lists);
/* Call into the BFD backend to do the real work. */
- if (!ppc64_elf_size_stubs (output_bfd,
+ if (!ppc64_elf_size_stubs (link_info.output_bfd,
&link_info,
group_size,
&ppc_add_stub_section,
}
if (need_laying_out != -1)
- gld${EMULATION_NAME}_map_segments (need_laying_out);
+ {
+ gld${EMULATION_NAME}_map_segments (need_laying_out);
+
+ if (!link_info.relocatable)
+ _bfd_set_gp_value (link_info.output_bfd,
+ ppc64_elf_toc (link_info.output_bfd));
+ }
+}
+
+
+/* Final emulation specific call. */
+
+static void
+gld${EMULATION_NAME}_finish (void)
+{
+ /* e_entry on PowerPC64 points to the function descriptor for
+ _start. If _start is missing, default to the first function
+ descriptor in the .opd section. */
+ entry_section = ".opd";
if (link_info.relocatable)
{
- asection *toc = bfd_get_section_by_name (output_bfd, ".toc");
+ asection *toc = bfd_get_section_by_name (link_info.output_bfd, ".toc");
if (toc != NULL
- && bfd_section_size (output_bfd, toc) > 0x10000)
+ && bfd_section_size (link_info.output_bfd, toc) > 0x10000)
einfo ("%X%P: TOC section size exceeds 64k\n");
}
char *msg = NULL;
char *line, *endline;
- emit_stub_syms |= link_info.emitrelocations;
+ if (emit_stub_syms < 0)
+ emit_stub_syms = 1;
if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info,
config.stats ? &msg : NULL))
einfo ("%X%P: can not build stubs: %E\n");
char *dot_pat;
if (!dotsyms
- || (entry->pattern != NULL
- && (entry->pattern[0] == '*' || entry->pattern[0] == '.')))
+ || entry->pattern[0] == '.'
+ || (!entry->literal && entry->pattern[0] == '*'))
return entry;
dot_entry = xmalloc (sizeof *dot_entry);
*dot_entry = *entry;
dot_entry->next = entry;
- if (entry->pattern != NULL)
- {
- len = strlen (entry->pattern) + 2;
- dot_pat = xmalloc (len);
- dot_pat[0] = '.';
- memcpy (dot_pat + 1, entry->pattern, len - 1);
- dot_entry->pattern = dot_pat;
- }
- if (entry->symbol != NULL)
- {
- len = strlen (entry->symbol) + 2;
- dot_pat = xmalloc (len);
- dot_pat[0] = '.';
- memcpy (dot_pat + 1, entry->symbol, len - 1);
- dot_entry->symbol = dot_pat;
- }
+ len = strlen (entry->pattern) + 2;
+ dot_pat = xmalloc (len);
+ dot_pat[0] = '.';
+ memcpy (dot_pat + 1, entry->pattern, len - 1);
+ dot_entry->pattern = dot_pat;
return dot_entry;
}
PARSE_AND_LIST_PROLOGUE='
#define OPTION_STUBGROUP_SIZE 301
#define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1)
-#define OPTION_DOTSYMS (OPTION_STUBSYMS + 1)
+#define OPTION_NO_STUBSYMS (OPTION_STUBSYMS + 1)
+#define OPTION_DOTSYMS (OPTION_NO_STUBSYMS + 1)
#define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1)
#define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1)
-#define OPTION_NO_OPD_OPT (OPTION_NO_TLS_OPT + 1)
+#define OPTION_NO_TLS_GET_ADDR_OPT (OPTION_NO_TLS_OPT + 1)
+#define OPTION_NO_OPD_OPT (OPTION_NO_TLS_GET_ADDR_OPT + 1)
#define OPTION_NO_TOC_OPT (OPTION_NO_OPD_OPT + 1)
#define OPTION_NO_MULTI_TOC (OPTION_NO_TOC_OPT + 1)
#define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_MULTI_TOC + 1)
PARSE_AND_LIST_LONGOPTS='
{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
{ "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
+ { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
{ "dotsyms", no_argument, NULL, OPTION_DOTSYMS },
{ "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS },
{ "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT },
+ { "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT },
{ "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT },
{ "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT },
{ "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC },
PARSE_AND_LIST_OPTIONS='
fprintf (file, _("\
- --stub-group-size=N Maximum size of a group of input sections that can be\n\
- handled by one stub section. A negative value\n\
- locates all stubs before their branches (with a\n\
- group size of -N), while a positive value allows\n\
- two groups of input sections, one before, and one\n\
- after each stub section. Values of +/-1 indicate\n\
- the linker should choose suitable defaults.\n"
+ --stub-group-size=N Maximum size of a group of input sections that\n\
+ can be handled by one stub section. A negative\n\
+ value locates all stubs before their branches\n\
+ (with a group size of -N), while a positive\n\
+ value allows two groups of input sections, one\n\
+ before, and one after each stub section.\n\
+ Values of +/-1 indicate the linker should\n\
+ choose suitable defaults.\n"
+ ));
+ fprintf (file, _("\
+ --emit-stub-syms Label linker stubs with a symbol.\n"
));
fprintf (file, _("\
- --emit-stub-syms Label linker stubs with a symbol.\n"
+ --no-emit-stub-syms Don'\''t label linker stubs with a symbol.\n"
));
fprintf (file, _("\
- --dotsyms For every version pattern \"foo\" in a version script,\n\
- add \".foo\" so that function code symbols are\n\
- treated the same as function descriptor symbols.\n\
- Defaults to on.\n"
+ --dotsyms For every version pattern \"foo\" in a version\n\
+ script, add \".foo\" so that function code\n\
+ symbols are treated the same as function\n\
+ descriptor symbols. Defaults to on.\n"
));
fprintf (file, _("\
- --no-dotsyms Don'\''t do anything special in version scripts.\n"
+ --no-dotsyms Don'\''t do anything special in version scripts.\n"
));
fprintf (file, _("\
- --no-tls-optimize Don'\''t try to optimize TLS accesses.\n"
+ --no-tls-optimize Don'\''t try to optimize TLS accesses.\n"
));
fprintf (file, _("\
- --no-opd-optimize Don'\''t optimize the OPD section.\n"
+ --no-tls-get-addr-optimize Don'\''t use a special __tls_get_addr call.\n"
));
fprintf (file, _("\
- --no-toc-optimize Don'\''t optimize the TOC section.\n"
+ --no-opd-optimize Don'\''t optimize the OPD section.\n"
));
fprintf (file, _("\
- --no-multi-toc Disallow automatic multiple toc sections.\n"
+ --no-toc-optimize Don'\''t optimize the TOC section.\n"
));
fprintf (file, _("\
- --non-overlapping-opd Canonicalize .opd, so that there are no overlapping\n\
- .opd entries.\n"
+ --no-multi-toc Disallow automatic multiple toc sections.\n"
+ ));
+ fprintf (file, _("\
+ --non-overlapping-opd Canonicalize .opd, so that there are no\n\
+ overlapping .opd entries.\n"
));
'
emit_stub_syms = 1;
break;
+ case OPTION_NO_STUBSYMS:
+ emit_stub_syms = 0;
+ break;
+
case OPTION_DOTSYMS:
dotsyms = 1;
break;
no_tls_opt = 1;
break;
+ case OPTION_NO_TLS_GET_ADDR_OPT:
+ no_tls_get_addr_opt = 1;
+ break;
+
case OPTION_NO_OPD_OPT:
no_opd_opt = 1;
break;
projects / msp430-binutils.git / blobdiff