# This shell script emits a C file. -*- C -*-
-# Copyright 2002, 2003 Free Software Foundation, Inc.
+# Copyright 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
#
# This file is part of GLD, the Gnu Linker.
#
#
# 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.
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#
# This file is sourced from elf32.em, and defines extra powerpc64-elf
static int dotsyms = 1;
/* Whether to run tls optimization. */
-static int notlsopt = 0;
+static int no_tls_opt = 0;
+
+/* Whether to run opd optimization. */
+static int no_opd_opt = 0;
+
+/* Whether to run toc optimization. */
+static int no_toc_opt = 0;
+
+/* Whether to allow multiple toc sections. */
+static int no_multi_toc = 0;
/* Whether to emit symbols for stubs. */
static int emit_stub_syms = 0;
static asection *toc_section = 0;
+/* Whether to canonicalize .opd so that there are no overlapping
+ .opd entries. */
+static int non_overlapping_opd = 0;
/* This is called before the input files are opened. We create a new
fake input file to hold the stub sections. */
&& link_info.hash->creator != &bfd_elf64_powerpcle_vec)
return;
+ link_info.wrap_char = '.';
+
stub_file = lang_add_input_file ("linker stubs",
lang_input_file_is_fake_enum,
NULL);
bfd_get_arch (output_bfd),
bfd_get_mach (output_bfd)))
{
- einfo ("%X%P: can not create BFD %E\n");
+ einfo ("%F%P: can not create BFD %E\n");
return;
}
+ stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
ldlang_add_file (stub_file);
ppc64_elf_init_stub_bfd (stub_file->the_bfd, &link_info);
}
-static void
-ppc_after_open (void)
-{
- if (!ppc64_elf_mark_entry_syms (&link_info))
- {
- einfo ("%X%P: can not mark entry symbols %E\n");
- return;
- }
-
- gld${EMULATION_NAME}_after_open ();
-}
-
static void
ppc_before_allocation (void)
{
if (stub_file != NULL)
{
- if (!ppc64_elf_edit_opd (output_bfd, &link_info))
- {
- einfo ("%X%P: can not edit opd %E\n");
- return;
- }
+ if (!ppc64_elf_edit_opd (output_bfd, &link_info, no_opd_opt,
+ non_overlapping_opd))
+ einfo ("%X%P: can not edit %s %E\n", "opd");
- if (ppc64_elf_tls_setup (output_bfd, &link_info) && !notlsopt)
+ if (ppc64_elf_tls_setup (output_bfd, &link_info) && !no_tls_opt)
{
/* Size the sections. This is premature, but we want to know the
TLS segment layout so that certain optimizations can be done. */
- lang_size_sections (stat_ptr->head, abs_output_section,
- &stat_ptr->head, 0, 0, NULL, TRUE);
+ expld.phase = lang_mark_phase_enum;
+ expld.dataseg.phase = exp_dataseg_none;
+ one_lang_size_sections_pass (NULL, TRUE);
if (!ppc64_elf_tls_optimize (output_bfd, &link_info))
- {
- einfo ("%X%P: TLS problem %E\n");
- return;
- }
+ einfo ("%X%P: TLS problem %E\n");
/* We must not cache anything from the preliminary sizing. */
- elf_tdata (output_bfd)->program_header_size = 0;
lang_reset_memory_regions ();
}
+
+ if (!no_toc_opt
+ && !link_info.relocatable
+ && !ppc64_elf_edit_toc (output_bfd, &link_info))
+ einfo ("%X%P: can not edit %s %E\n", "toc");
}
gld${EMULATION_NAME}_before_allocation ();
add even more stubs. */
need_laying_out = 0;
- lang_reset_memory_regions ();
-
- /* Resize the sections. */
- lang_size_sections (stat_ptr->head, abs_output_section,
- &stat_ptr->head, 0, 0, NULL, TRUE);
-
- /* Recalculate TOC base. */
- ldemul_after_allocation ();
-
- /* Do the assignments again. */
- lang_do_assignments (stat_ptr->head, abs_output_section, NULL, 0);
+ gld${EMULATION_NAME}_layout_sections_again ();
}
{
if (statement->header.type == lang_input_section_enum
&& !statement->input_section.ifile->just_syms_flag
+ && (statement->input_section.section->flags & SEC_EXCLUDE) == 0
&& statement->input_section.section->output_section == toc_section)
ppc64_elf_next_toc_section (&link_info, statement->input_section.section);
}
{
if (statement->header.type == lang_input_section_enum
&& !statement->input_section.ifile->just_syms_flag
+ && (statement->input_section.section->flags & SEC_EXCLUDE) == 0
&& statement->input_section.section->output_section != NULL
&& statement->input_section.section->output_section->owner == output_bfd)
{
/* Final emulation specific call. */
static void
-gld${EMULATION_NAME}_finish (void)
+ppc_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";
- /* bfd_elf64_discard_info just plays with debugging sections,
+ /* bfd_elf_discard_info just plays with debugging sections,
ie. doesn't affect any code, so we can delay resizing the
sections. It's likely we'll resize everything in the process of
adding stubs. */
- if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
+ if (bfd_elf_discard_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);
- if (ret != 0)
+ int ret = ppc64_elf_setup_section_lists (output_bfd, &link_info,
+ no_multi_toc);
+ if (ret < 0)
+ einfo ("%X%P: can not size stub section: %E\n");
+ else if (ret > 0)
{
- if (ret < 0)
- {
- einfo ("%X%P: can not size stub section: %E\n");
- return;
- }
-
toc_section = bfd_get_section_by_name (output_bfd, ".got");
if (toc_section != NULL)
lang_for_each_statement (build_toc_list);
group_size,
&ppc_add_stub_section,
&ppc_layout_sections_again))
- {
- einfo ("%X%P: can not size stub section: %E\n");
- return;
- }
+ einfo ("%X%P: can not size stub section: %E\n");
}
}
if (need_laying_out)
ppc_layout_sections_again ();
+ if (link_info.relocatable)
+ {
+ asection *toc = bfd_get_section_by_name (output_bfd, ".toc");
+ if (toc != NULL
+ && bfd_section_size (output_bfd, toc) > 0x10000)
+ einfo ("%X%P: TOC section size exceeds 64k\n");
+ }
+
if (stub_added)
{
char *msg = NULL;
char *line, *endline;
+ emit_stub_syms |= link_info.emitrelocations;
if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info,
config.stats ? &msg : NULL))
einfo ("%X%P: can not build stubs: %E\n");
if (msg != NULL)
free (msg);
}
+
+ ppc64_elf_restore_symbols (&link_info);
+ finish_default ();
}
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;
+ }
return dot_entry;
}
#define OPTION_DOTSYMS (OPTION_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_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='
{ "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-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 },
+ { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD },
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _("\
--no-tls-optimize Don'\''t try to optimize TLS accesses.\n"
));
+ fprintf (file, _("\
+ --no-opd-optimize Don'\''t optimize the OPD section.\n"
+ ));
+ fprintf (file, _("\
+ --no-toc-optimize Don'\''t optimize the TOC section.\n"
+ ));
+ fprintf (file, _("\
+ --no-multi-toc Disallow automatic multiple toc sections.\n"
+ ));
+ fprintf (file, _("\
+ --non-overlapping-opd Canonicalize .opd, so that there are no overlapping\n\
+ .opd entries.\n"
+ ));
'
PARSE_AND_LIST_ARGS_CASES='
break;
case OPTION_NO_TLS_OPT:
- notlsopt = 1;
+ no_tls_opt = 1;
+ break;
+
+ case OPTION_NO_OPD_OPT:
+ no_opd_opt = 1;
+ break;
+
+ case OPTION_NO_TOC_OPT:
+ no_toc_opt = 1;
+ break;
+
+ case OPTION_NO_MULTI_TOC:
+ no_multi_toc = 1;
+ break;
+
+ case OPTION_NON_OVERLAPPING_OPD:
+ non_overlapping_opd = 1;
break;
'
# Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation
#
-LDEMUL_AFTER_OPEN=ppc_after_open
LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
-LDEMUL_FINISH=gld${EMULATION_NAME}_finish
+LDEMUL_FINISH=ppc_finish
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements
LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern
projects / deliverable / binutils-gdb.git / blobdiff