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-rw-r--r--contrib/binutils/ld/emultempl/ppc64elf.em529
1 files changed, 0 insertions, 529 deletions
diff --git a/contrib/binutils/ld/emultempl/ppc64elf.em b/contrib/binutils/ld/emultempl/ppc64elf.em
deleted file mode 100644
index 4f408a9..0000000
--- a/contrib/binutils/ld/emultempl/ppc64elf.em
+++ /dev/null
@@ -1,529 +0,0 @@
-# This shell script emits a C file. -*- C -*-
-# Copyright 2002, 2003, 2004 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 powerpc64-elf
-# specific routines.
-#
-cat >>e${EMULATION_NAME}.c <<EOF
-
-#include "ldctor.h"
-#include "libbfd.h"
-#include "elf-bfd.h"
-#include "elf64-ppc.h"
-
-/* Fake input file for stubs. */
-static lang_input_statement_type *stub_file;
-static int stub_added = 0;
-
-/* Whether we need to call ppc_layout_sections_again. */
-static int need_laying_out = 0;
-
-/* Maximum size of a group of input sections that can be handled by
- one stub section. A value of +/-1 indicates the bfd back-end
- should use a suitable default size. */
-static bfd_signed_vma group_size = 1;
-
-/* Whether to add ".foo" entries for each "foo" in a version script. */
-static int dotsyms = 1;
-
-/* Whether to run tls optimization. */
-static int notlsopt = 0;
-
-/* Whether to emit symbols for stubs. */
-static int emit_stub_syms = 0;
-
-static asection *toc_section = 0;
-
-
-/* This is called before the input files are opened. We create a new
- fake input file to hold the stub sections. */
-
-static void
-ppc_create_output_section_statements (void)
-{
- extern const bfd_target bfd_elf64_powerpc_vec;
- extern const bfd_target bfd_elf64_powerpcle_vec;
-
- if (link_info.hash->creator != &bfd_elf64_powerpc_vec
- && link_info.hash->creator != &bfd_elf64_powerpcle_vec)
- return;
-
- link_info.wrap_char = '.';
-
- stub_file = lang_add_input_file ("linker stubs",
- lang_input_file_is_fake_enum,
- NULL);
- stub_file->the_bfd = bfd_create ("linker stubs", output_bfd);
- if (stub_file->the_bfd == NULL
- || !bfd_set_arch_mach (stub_file->the_bfd,
- bfd_get_arch (output_bfd),
- bfd_get_mach (output_bfd)))
- {
- einfo ("%X%P: can not create BFD %E\n");
- return;
- }
-
- ldlang_add_file (stub_file);
- ppc64_elf_init_stub_bfd (stub_file->the_bfd, &link_info);
-}
-
-static void
-ppc_after_open (void)
-{
- if (!ppc64_elf_mark_entry_syms (&link_info))
- {
- einfo ("%X%P: can not mark entry symbols %E\n");
- return;
- }
-
- gld${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_tls_setup (output_bfd, &link_info) && !notlsopt)
- {
- /* 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);
-
- if (!ppc64_elf_tls_optimize (output_bfd, &link_info))
- {
- einfo ("%X%P: TLS problem %E\n");
- return;
- }
-
- /* We must not cache anything from the preliminary sizing. */
- elf_tdata (output_bfd)->program_header_size = 0;
- lang_reset_memory_regions ();
- }
- }
-
- gld${EMULATION_NAME}_before_allocation ();
-}
-
-struct hook_stub_info
-{
- lang_statement_list_type add;
- asection *input_section;
-};
-
-/* Traverse the linker tree to find the spot where the stub goes. */
-
-static bfd_boolean
-hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
-{
- lang_statement_union_type *l;
- bfd_boolean ret;
-
- for (; (l = *lp) != NULL; lp = &l->header.next)
- {
- switch (l->header.type)
- {
- case lang_constructors_statement_enum:
- ret = hook_in_stub (info, &constructor_list.head);
- if (ret)
- return ret;
- break;
-
- case lang_output_section_statement_enum:
- ret = hook_in_stub (info,
- &l->output_section_statement.children.head);
- if (ret)
- return ret;
- break;
-
- case lang_wild_statement_enum:
- ret = hook_in_stub (info, &l->wild_statement.children.head);
- if (ret)
- return ret;
- break;
-
- case lang_group_statement_enum:
- ret = hook_in_stub (info, &l->group_statement.children.head);
- if (ret)
- return ret;
- break;
-
- case lang_input_section_enum:
- if (l->input_section.section == info->input_section)
- {
- /* We've found our section. Insert the stub immediately
- before its associated input section. */
- *lp = info->add.head;
- *(info->add.tail) = l;
- return TRUE;
- }
- break;
-
- case lang_data_statement_enum:
- case lang_reloc_statement_enum:
- case lang_object_symbols_statement_enum:
- case lang_output_statement_enum:
- case lang_target_statement_enum:
- case lang_input_statement_enum:
- case lang_assignment_statement_enum:
- case lang_padding_statement_enum:
- case lang_address_statement_enum:
- case lang_fill_statement_enum:
- break;
-
- default:
- FAIL ();
- break;
- }
- }
- return FALSE;
-}
-
-
-/* Call-back for ppc64_elf_size_stubs. */
-
-/* Create a new stub section, and arrange for it to be linked
- immediately before INPUT_SECTION. */
-
-static asection *
-ppc_add_stub_section (const char *stub_sec_name, asection *input_section)
-{
- asection *stub_sec;
- flagword flags;
- asection *output_section;
- const char *secname;
- 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_RELOC | SEC_IN_MEMORY | SEC_KEEP);
- if (!bfd_set_section_flags (stub_file->the_bfd, stub_sec, flags))
- goto err_ret;
-
- output_section = input_section->output_section;
- secname = bfd_get_section_name (output_section->owner, output_section);
- os = lang_output_section_find (secname);
-
- info.input_section = input_section;
- lang_list_init (&info.add);
- lang_add_section (&info.add, stub_sec, os, stub_file);
-
- if (info.add.head == NULL)
- goto err_ret;
-
- stub_added = 1;
- if (hook_in_stub (&info, &os->children.head))
- return stub_sec;
-
- err_ret:
- einfo ("%X%P: can not make stub section: %E\n");
- return NULL;
-}
-
-
-/* Another call-back for ppc64_elf_size_stubs. */
-
-static void
-ppc_layout_sections_again (void)
-{
- /* If we have changed sizes of the stub sections, then we need
- to recalculate all the section offsets. This may mean we need to
- 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);
-}
-
-
-/* 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));
-}
-
-
-static void
-build_toc_list (lang_statement_union_type *statement)
-{
- if (statement->header.type == lang_input_section_enum
- && !statement->input_section.ifile->just_syms_flag
- && statement->input_section.section->output_section == toc_section)
- ppc64_elf_next_toc_section (&link_info, statement->input_section.section);
-}
-
-
-static void
-build_section_lists (lang_statement_union_type *statement)
-{
- if (statement->header.type == lang_input_section_enum
- && !statement->input_section.ifile->just_syms_flag
- && statement->input_section.section->output_section != NULL
- && statement->input_section.section->output_section->owner == output_bfd)
- {
- if (!ppc64_elf_next_input_section (&link_info,
- statement->input_section.section))
- einfo ("%X%P: can not size stub section: %E\n");
- }
-}
-
-
-/* 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";
-
- /* 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_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)
- {
- 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);
-
- ppc64_elf_reinit_toc (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,
- &link_info,
- group_size,
- &ppc_add_stub_section,
- &ppc_layout_sections_again))
- {
- einfo ("%X%P: can not size stub section: %E\n");
- return;
- }
- }
- }
-
- if (need_laying_out)
- ppc_layout_sections_again ();
-
- if (stub_added)
- {
- char *msg = NULL;
- char *line, *endline;
-
- if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info,
- config.stats ? &msg : NULL))
- einfo ("%X%P: can not build stubs: %E\n");
-
- for (line = msg; line != NULL; line = endline)
- {
- endline = strchr (line, '\n');
- if (endline != NULL)
- *endline++ = '\0';
- fprintf (stderr, "%s: %s\n", program_name, line);
- }
- if (msg != NULL)
- free (msg);
- }
-}
-
-
-/* Add a pattern matching ".foo" for every "foo" in a version script.
-
- The reason for doing this is that many shared library version
- scripts export a selected set of functions or data symbols, forcing
- others local. eg.
-
- . VERS_1 {
- . global:
- . this; that; some; thing;
- . local:
- . *;
- . };
-
- To make the above work for PowerPC64, we need to export ".this",
- ".that" and so on, otherwise only the function descriptor syms are
- exported. Lack of an exported function code sym may cause a
- definition to be pulled in from a static library. */
-
-static struct bfd_elf_version_expr *
-gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry)
-{
- struct bfd_elf_version_expr *dot_entry;
- unsigned int len;
- char *dot_pat;
-
- if (!dotsyms || entry->pattern[0] == '*' || entry->pattern[0] == '.')
- return entry;
-
- dot_entry = xmalloc (sizeof *dot_entry);
- *dot_entry = *entry;
- dot_entry->next = entry;
- 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;
-}
-
-
-/* Avoid processing the fake stub_file in vercheck, stat_needed and
- check_needed routines. */
-
-static void (*real_func) (lang_input_statement_type *);
-
-static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l)
-{
- if (l != stub_file)
- (*real_func) (l);
-}
-
-static void
-ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
-{
- real_func = func;
- lang_for_each_input_file (&ppc_for_each_input_file_wrapper);
-}
-
-#define lang_for_each_input_file ppc_lang_for_each_input_file
-
-EOF
-
-# 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_STUBGROUP_SIZE 301
-#define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1)
-#define OPTION_DOTSYMS (OPTION_STUBSYMS + 1)
-#define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1)
-#define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1)
-'
-
-PARSE_AND_LIST_LONGOPTS='
- { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
- { "emit-stub-syms", no_argument, NULL, OPTION_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 },
-'
-
-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"
- ));
- fprintf (file, _("\
- --emit-stub-syms 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"
- ));
- fprintf (file, _("\
- --no-dotsyms Don'\''t do anything special in version scripts.\n"
- ));
- fprintf (file, _("\
- --no-tls-optimize Don'\''t try to optimize TLS accesses.\n"
- ));
-'
-
-PARSE_AND_LIST_ARGS_CASES='
- case OPTION_STUBGROUP_SIZE:
- {
- const char *end;
- group_size = bfd_scan_vma (optarg, &end, 0);
- if (*end)
- einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
- }
- break;
-
- case OPTION_STUBSYMS:
- emit_stub_syms = 1;
- break;
-
- case OPTION_DOTSYMS:
- dotsyms = 1;
- break;
-
- case OPTION_NO_DOTSYMS:
- dotsyms = 0;
- break;
-
- case OPTION_NO_TLS_OPT:
- notlsopt = 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${EMULATION_NAME}_finish
-LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements
-LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern
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