binutils-gdb/ld/emultempl/ppc64elf.em

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# This shell script emits a C file. -*- C -*-
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# Copyright 2002, 2003, 2004, 2005 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
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#
# This file is sourced from elf32.em, and defines extra powerpc64-elf
# specific routines.
#
cat >>e${EMULATION_NAME}.c <<EOF
#include "ldctor.h"
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#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 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. */
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 ("%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_before_allocation (void)
{
if (stub_file != NULL)
{
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) && !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. */
* ld.h (lang_phase_type): Move to.. * ldexp.h: ..here. Add lang_mark_phase_enum. (node_type): Remove etree_undef and etree_unspec. (exp_data_seg): Delete. (struct ldexp_control, expld): New. (invalid, exp_mark_used_section): Delete. (exp_fold_tree, exp_get_vma, exp_get_value_int, exp_get_fill, exp_get_abs_int): Update prototypes. * ldexp.c (assigning_to_dot): Delete. (expld): Define. (make_abs): Operate directly on expld.result. Update all callers. (new_abs): Likewise. Return void. (new_rel_from_abs): Rename from new_rel_from_section. (new_rel, new_rel_from_abs): Operate on expld.result and return void. Update all callers. (fold_unary): Operate on expld.result and return void. Remove "current_section", "allocation_done", "dot", "dotp" and "mark_used" params. Update all callers. (fold_binary, fold_trinary, fold_name, exp_fold_tree_1): Likewise. (fold_unary <ALIGN_K>): Ensure alignment is absolute. (fold_unary <ABSOLUTE>): Use make_abs. (fold_unary <DATA_SEGMENT_END>): Evaluate mark_phase as for allocating_phase. (fold_binary <DATA_SEGMENT_ALIGN, DATA_SEGMENT_RELRO_END, >): Ditto. (fold_binary <'%','/'>): Don't error if marking. (fold_name <SIZEOF_HEADERS>): Don't call bfd_sizeof_headers when marking. (fold_name <NAME>): Remove FIXME; -R is handled correctly. Don't error when marking. (fold_name <ADDR, LOADADDR, SIZEOF>): Don't set SEC_KEEP. (exp_fold_tree_1): Don't error when marking. (exp_fold_tree_1 <etree_rel>): Evaluate in all phases except first. (exp_fold_tree_1 <etree_assign to dot>): Don't check for NULL current section, instead check for NULL dotp. (exp_fold_tree_1 <etree_provide>): Don't evaluate the assignment source unless the symbol is referenced and undefined. (exp_fold_tree): Remove "allocation_done" and "dot" params. Save params to expld. (exp_fold_tree_no_dot): Remove "current_section", "allocation_done and "mark_used" params. Save params to expld. Update all callers. (exp_assop): Do without temp var. (exp_print_tree <etree_undef>): Delete code. (exp_get_vma): Remove "allocation_done" param. Correct error return. (exp_get_fill, exp_get_abs_int): Likewise. (exp_get_value_int): Remove "allocation_done" param. (exp_mark_used_section): Delete. * ldgram.y (fill_exp): Update exp_get_fill call. (origin_spec, length_spec): Update exp_get_vma call. * ldlang.c (lang_init): Don't bother clearing lang_statement_iteration. (lang_mark_used_section_1, lang_mark_used_section): Delete. (strip_excluded_output_sections): Call one_lang_size_sections_pass in marking mode. Merge old lang_mark_used_section code. Correct handling of output sections with excluded input sections and data statements. Don't drop non-zero sized sections. Don't zap os->bfd_section. Do set SEC_EXCLUDE when appropriate. (print_output_section_statement): Update for changed ldexp.c interface. (print_assignment, lang_size_sections_1): Likewise. (lang_do_assignments_1, lang_enter_output_section_statement): Likewise. (lang_new_phdr, lang_record_phdrs): Likewise. (lang_size_sections): Likewise. (insert_pad): Use following statement if it is a pad, rather than creating a new one. (lang_size_sections_1 <lang_output_section_statement_enum>): Do process ignored output section to set vma and lma, but don't update dot for these sections. Don't error if marking. (lang_size_sections_1 <lang_assignment_statement_enum>): Don't update dot for ignored sections. (lang_size_sections_1 <lang_data_statement_enum>): Don't mark absolute section with SEC_ALLOC. (one_lang_size_sections_pass): New function. (lang_size_sections): Remove first five params. Set expld.phase on entry and exit. Use one_lang_size_sections_pass. (lang_do_assignments): Remove all params. Update all callers. (lang_reset_memory_regions): Clear os->processed for all output section statements. * ldlang.h (lang_do_assignments): Update prototype. (lang_size_sections): Likewise. (one_lang_size_sections_pass): Declare. * pe-dll.c (pe_dll_fill_sections, pe_exe_fill_sections): Update lang_size_sections and lang_do_assignments calls. * emultempl/elf32.em (layout_sections_again): Likewise. * emultempl/ppc64elf.em (ppc_before_allocation): Use one_lang_size_sections_pass.
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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");
/* We must not cache anything from the preliminary sizing. */
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 ();
}
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_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);
* ldlang.h (lang_input_section_type): Remove "ifile" field. (lang_insert_orphan, lang_add_section): Update prototypes. * ldlang.c (lang_insert_orphan): Remove "file" param. (lang_add_section): Likewise. Update all callers. (wild_sort): Get an input section's bfd via "section->owner". (size_input_section): Access just_syms_flag via bfd usrdata. (lang_place_orphans): Update ldemul_place_orphan call. * ldemul.h (ldemul_place_orphan): Remove input_statement param. (struct ld_emulation_xfer_struct <place_orphan>): Likewise. * ldemul.c (ldemul_place_orphan): Likewise. * ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata. * emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise. * emultempl/beos.em (sort_by_file_name): Access bfd by section->owner. (sort_sections): Likewise. (place_orphan): Remove "file" param. Adjust lang_add_section call. * emultempl/elf32.em (place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust lang_add_section call. (build_section_lists): Access just_syms_flag via bfd usrdata. * emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust lang_add_section call. * emultempl/mmo.em (mmo_place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/pe.em (place_orphan): Likewise. Access bfd via section owner. * emultempl/ppc64elf.em (ppc_add_stub_section): Adjust lang_add_section call. (build_toc_list): Access just_syms_flag via bfd usrdata. (build_section_lists): Likewise. * emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file" param. Adjust place_orphan call. (ld_build_required_section_dependence): Access bfd via section owner.
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lang_add_section (&info.add, stub_sec, os);
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. */
bfd/ * elf-bfd.h: Formatting. (_bfd_elf_map_sections_to_segments): Declare. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame_hdr): Don't clear program_header_size. * elf.c (get_program_header_size): Move. Don't use or set saved program_header_size here. (elf_modify_segment_map): New function. Split out from.. (assign_file_positions_for_load_sections): ..here. Assert header size is correct. Remove dead code. (_bfd_elf_map_sections_to_segments): Rename from map_sections_to_segments. Make global. Use get_program_header_size when we need estimate of header size. Call elf_modify_segment_map. Set program_header_size. (print_segment_map): Delete. (_bfd_elf_sizeof_headers): If segment_map available, get the actual size. * elf32-arm.c (elf32_arm_symbian_modify_segment_map): Make safe for calling more than once. * elf32-bfin.c (elf32_bfinfdpic_modify_segment_map): Likewise. * elf32-frv.c (elf32_frvfdpic_modify_segment_map): Likewise. * elfxx-mips.c (_bfd_mips_elf_modify_segment_map): Likewise. * elf32-i370.c (elf_backend_add_symbol_hook): Delete. (elf_backend_additional_program_headers): Delete. (elf_backend_modify_segment_map): Delete. * elf64-hppa.c (elf64_hppa_modify_segment_map): Convert to ISO C. * elfxx-ia64.c (elfNN_ia64_modify_segment_map): Likewise. * doc/bfdint.texi: Delete SIZEOF_HEADERS difficulties. ld/ * Makefile.am (ELF_DEPS): Define. Use in emul file deps. Fix many ELF emul file deps that incorrectly said they needed elf32.em instead of generic.em. Add genelf.em as required. * Makefile.in: Regenerate. * ldlang.c (lang_process): Call ldemul_finish before lang_check_section_addresses. * emulparams/arcelf.sh: Generic elf target needs genelf. * emulparams/d30v_e.sh: Likewise. * emulparams/d30v_o.sh: Likewise. * emulparams/d30velf.sh: Likewise. * emulparams/elf32_dlx.sh: Likewise. * emulparams/elf32_i860.sh: Likewise. * emulparams/elf32fr30.sh: Likewise. * emulparams/elf32frv.sh: Likewise. * emulparams/elf32iq10.sh: Likewise. * emulparams/elf32iq2000.sh: Likewise. * emulparams/elf32mt.sh: Likewise. * emulparams/mn10200.sh: Likewise. * emulparams/or32.sh: Likewise. * emulparams/or32elf.sh: Likewise. * emulparams/pjelf.sh: Likewise. * emulparams/msp430all.sh: Likewise. Extract common entries. * emulparams/pjlelf.sh: Include pjelf.sh. * emulparams/elf32frvfd.sh (EXTRA_EM_FILE): Unset. * emulparams/mn10300.sh (EXTRA_EM_FILE): Unset. * emultempl/elf-generic.em: New file. * emultempl/genelf.em: New file. * emultempl/elf32.em: Include elf-generic.em. (gld${EMULATION_NAME}_layout_sections_again): Delete. (gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/hppaelf.em (hppaelf_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from hppaelf_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. * emultempl/mmo.em: Correct comment. Include elf-bfd.h and source elf-generic.em. (mmo_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from ppc_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. ld/testsuite/ * ld-elf/eh1.d: Update for fewer program headers. * ld-elf/eh2.d: Likewise. * ld-elf/eh3.d: Likewise.
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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)
{
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if (!link_info.relocatable)
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_bfd_set_gp_value (output_bfd, ppc64_elf_toc (output_bfd));
}
static void
build_toc_list (lang_statement_union_type *statement)
{
* ldlang.h (lang_input_section_type): Remove "ifile" field. (lang_insert_orphan, lang_add_section): Update prototypes. * ldlang.c (lang_insert_orphan): Remove "file" param. (lang_add_section): Likewise. Update all callers. (wild_sort): Get an input section's bfd via "section->owner". (size_input_section): Access just_syms_flag via bfd usrdata. (lang_place_orphans): Update ldemul_place_orphan call. * ldemul.h (ldemul_place_orphan): Remove input_statement param. (struct ld_emulation_xfer_struct <place_orphan>): Likewise. * ldemul.c (ldemul_place_orphan): Likewise. * ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata. * emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise. * emultempl/beos.em (sort_by_file_name): Access bfd by section->owner. (sort_sections): Likewise. (place_orphan): Remove "file" param. Adjust lang_add_section call. * emultempl/elf32.em (place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust lang_add_section call. (build_section_lists): Access just_syms_flag via bfd usrdata. * emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust lang_add_section call. * emultempl/mmo.em (mmo_place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/pe.em (place_orphan): Likewise. Access bfd via section owner. * emultempl/ppc64elf.em (ppc_add_stub_section): Adjust lang_add_section call. (build_toc_list): Access just_syms_flag via bfd usrdata. (build_section_lists): Likewise. * emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file" param. Adjust place_orphan call. (ld_build_required_section_dependence): Access bfd via section owner.
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if (statement->header.type == lang_input_section_enum)
{
asection *i = statement->input_section.section;
if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
&& (i->flags & SEC_EXCLUDE) == 0
&& i->output_section == toc_section)
ppc64_elf_next_toc_section (&link_info, i);
}
}
static void
build_section_lists (lang_statement_union_type *statement)
{
* ldlang.h (lang_input_section_type): Remove "ifile" field. (lang_insert_orphan, lang_add_section): Update prototypes. * ldlang.c (lang_insert_orphan): Remove "file" param. (lang_add_section): Likewise. Update all callers. (wild_sort): Get an input section's bfd via "section->owner". (size_input_section): Access just_syms_flag via bfd usrdata. (lang_place_orphans): Update ldemul_place_orphan call. * ldemul.h (ldemul_place_orphan): Remove input_statement param. (struct ld_emulation_xfer_struct <place_orphan>): Likewise. * ldemul.c (ldemul_place_orphan): Likewise. * ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata. * emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise. * emultempl/beos.em (sort_by_file_name): Access bfd by section->owner. (sort_sections): Likewise. (place_orphan): Remove "file" param. Adjust lang_add_section call. * emultempl/elf32.em (place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust lang_add_section call. (build_section_lists): Access just_syms_flag via bfd usrdata. * emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust lang_add_section call. * emultempl/mmo.em (mmo_place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/pe.em (place_orphan): Likewise. Access bfd via section owner. * emultempl/ppc64elf.em (ppc_add_stub_section): Adjust lang_add_section call. (build_toc_list): Access just_syms_flag via bfd usrdata. (build_section_lists): Likewise. * emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file" param. Adjust place_orphan call. (ld_build_required_section_dependence): Access bfd via section owner.
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if (statement->header.type == lang_input_section_enum)
{
* ldlang.h (lang_input_section_type): Remove "ifile" field. (lang_insert_orphan, lang_add_section): Update prototypes. * ldlang.c (lang_insert_orphan): Remove "file" param. (lang_add_section): Likewise. Update all callers. (wild_sort): Get an input section's bfd via "section->owner". (size_input_section): Access just_syms_flag via bfd usrdata. (lang_place_orphans): Update ldemul_place_orphan call. * ldemul.h (ldemul_place_orphan): Remove input_statement param. (struct ld_emulation_xfer_struct <place_orphan>): Likewise. * ldemul.c (ldemul_place_orphan): Likewise. * ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata. * emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise. * emultempl/beos.em (sort_by_file_name): Access bfd by section->owner. (sort_sections): Likewise. (place_orphan): Remove "file" param. Adjust lang_add_section call. * emultempl/elf32.em (place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust lang_add_section call. (build_section_lists): Access just_syms_flag via bfd usrdata. * emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust lang_add_section call. * emultempl/mmo.em (mmo_place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/pe.em (place_orphan): Likewise. Access bfd via section owner. * emultempl/ppc64elf.em (ppc_add_stub_section): Adjust lang_add_section call. (build_toc_list): Access just_syms_flag via bfd usrdata. (build_section_lists): Likewise. * emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file" param. Adjust place_orphan call. (ld_build_required_section_dependence): Access bfd via section owner.
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asection *i = statement->input_section.section;
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)
{
if (!ppc64_elf_next_input_section (&link_info, i))
einfo ("%X%P: can not size stub section: %E\n");
}
}
}
/* Final emulation specific call. */
static void
bfd/ * elf-bfd.h: Formatting. (_bfd_elf_map_sections_to_segments): Declare. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame_hdr): Don't clear program_header_size. * elf.c (get_program_header_size): Move. Don't use or set saved program_header_size here. (elf_modify_segment_map): New function. Split out from.. (assign_file_positions_for_load_sections): ..here. Assert header size is correct. Remove dead code. (_bfd_elf_map_sections_to_segments): Rename from map_sections_to_segments. Make global. Use get_program_header_size when we need estimate of header size. Call elf_modify_segment_map. Set program_header_size. (print_segment_map): Delete. (_bfd_elf_sizeof_headers): If segment_map available, get the actual size. * elf32-arm.c (elf32_arm_symbian_modify_segment_map): Make safe for calling more than once. * elf32-bfin.c (elf32_bfinfdpic_modify_segment_map): Likewise. * elf32-frv.c (elf32_frvfdpic_modify_segment_map): Likewise. * elfxx-mips.c (_bfd_mips_elf_modify_segment_map): Likewise. * elf32-i370.c (elf_backend_add_symbol_hook): Delete. (elf_backend_additional_program_headers): Delete. (elf_backend_modify_segment_map): Delete. * elf64-hppa.c (elf64_hppa_modify_segment_map): Convert to ISO C. * elfxx-ia64.c (elfNN_ia64_modify_segment_map): Likewise. * doc/bfdint.texi: Delete SIZEOF_HEADERS difficulties. ld/ * Makefile.am (ELF_DEPS): Define. Use in emul file deps. Fix many ELF emul file deps that incorrectly said they needed elf32.em instead of generic.em. Add genelf.em as required. * Makefile.in: Regenerate. * ldlang.c (lang_process): Call ldemul_finish before lang_check_section_addresses. * emulparams/arcelf.sh: Generic elf target needs genelf. * emulparams/d30v_e.sh: Likewise. * emulparams/d30v_o.sh: Likewise. * emulparams/d30velf.sh: Likewise. * emulparams/elf32_dlx.sh: Likewise. * emulparams/elf32_i860.sh: Likewise. * emulparams/elf32fr30.sh: Likewise. * emulparams/elf32frv.sh: Likewise. * emulparams/elf32iq10.sh: Likewise. * emulparams/elf32iq2000.sh: Likewise. * emulparams/elf32mt.sh: Likewise. * emulparams/mn10200.sh: Likewise. * emulparams/or32.sh: Likewise. * emulparams/or32elf.sh: Likewise. * emulparams/pjelf.sh: Likewise. * emulparams/msp430all.sh: Likewise. Extract common entries. * emulparams/pjlelf.sh: Include pjelf.sh. * emulparams/elf32frvfd.sh (EXTRA_EM_FILE): Unset. * emulparams/mn10300.sh (EXTRA_EM_FILE): Unset. * emultempl/elf-generic.em: New file. * emultempl/genelf.em: New file. * emultempl/elf32.em: Include elf-generic.em. (gld${EMULATION_NAME}_layout_sections_again): Delete. (gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/hppaelf.em (hppaelf_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from hppaelf_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. * emultempl/mmo.em: Correct comment. Include elf-bfd.h and source elf-generic.em. (mmo_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from ppc_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. ld/testsuite/ * ld-elf/eh1.d: Update for fewer program headers. * ld-elf/eh2.d: Likewise. * ld-elf/eh3.d: Likewise.
2006-06-20 10:22:16 +08:00
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. */
2003-06-25 14:40:27 +08:00
if (stub_file != NULL && !link_info.relocatable)
{
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)
{
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");
}
}
bfd/ * elf-bfd.h: Formatting. (_bfd_elf_map_sections_to_segments): Declare. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame_hdr): Don't clear program_header_size. * elf.c (get_program_header_size): Move. Don't use or set saved program_header_size here. (elf_modify_segment_map): New function. Split out from.. (assign_file_positions_for_load_sections): ..here. Assert header size is correct. Remove dead code. (_bfd_elf_map_sections_to_segments): Rename from map_sections_to_segments. Make global. Use get_program_header_size when we need estimate of header size. Call elf_modify_segment_map. Set program_header_size. (print_segment_map): Delete. (_bfd_elf_sizeof_headers): If segment_map available, get the actual size. * elf32-arm.c (elf32_arm_symbian_modify_segment_map): Make safe for calling more than once. * elf32-bfin.c (elf32_bfinfdpic_modify_segment_map): Likewise. * elf32-frv.c (elf32_frvfdpic_modify_segment_map): Likewise. * elfxx-mips.c (_bfd_mips_elf_modify_segment_map): Likewise. * elf32-i370.c (elf_backend_add_symbol_hook): Delete. (elf_backend_additional_program_headers): Delete. (elf_backend_modify_segment_map): Delete. * elf64-hppa.c (elf64_hppa_modify_segment_map): Convert to ISO C. * elfxx-ia64.c (elfNN_ia64_modify_segment_map): Likewise. * doc/bfdint.texi: Delete SIZEOF_HEADERS difficulties. ld/ * Makefile.am (ELF_DEPS): Define. Use in emul file deps. Fix many ELF emul file deps that incorrectly said they needed elf32.em instead of generic.em. Add genelf.em as required. * Makefile.in: Regenerate. * ldlang.c (lang_process): Call ldemul_finish before lang_check_section_addresses. * emulparams/arcelf.sh: Generic elf target needs genelf. * emulparams/d30v_e.sh: Likewise. * emulparams/d30v_o.sh: Likewise. * emulparams/d30velf.sh: Likewise. * emulparams/elf32_dlx.sh: Likewise. * emulparams/elf32_i860.sh: Likewise. * emulparams/elf32fr30.sh: Likewise. * emulparams/elf32frv.sh: Likewise. * emulparams/elf32iq10.sh: Likewise. * emulparams/elf32iq2000.sh: Likewise. * emulparams/elf32mt.sh: Likewise. * emulparams/mn10200.sh: Likewise. * emulparams/or32.sh: Likewise. * emulparams/or32elf.sh: Likewise. * emulparams/pjelf.sh: Likewise. * emulparams/msp430all.sh: Likewise. Extract common entries. * emulparams/pjlelf.sh: Include pjelf.sh. * emulparams/elf32frvfd.sh (EXTRA_EM_FILE): Unset. * emulparams/mn10300.sh (EXTRA_EM_FILE): Unset. * emultempl/elf-generic.em: New file. * emultempl/genelf.em: New file. * emultempl/elf32.em: Include elf-generic.em. (gld${EMULATION_NAME}_layout_sections_again): Delete. (gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/hppaelf.em (hppaelf_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from hppaelf_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. * emultempl/mmo.em: Correct comment. Include elf-bfd.h and source elf-generic.em. (mmo_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from ppc_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. ld/testsuite/ * ld-elf/eh1.d: Update for fewer program headers. * ld-elf/eh2.d: Likewise. * ld-elf/eh3.d: Likewise.
2006-06-20 10:22:16 +08:00
if (need_laying_out != -1)
gld${EMULATION_NAME}_map_segments (need_laying_out);
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");
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);
}
ppc64_elf_restore_symbols (&link_info);
finish_default ();
}
/* 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${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry)
{
struct bfd_elf_version_expr *dot_entry;
unsigned int len;
char *dot_pat;
if (!dotsyms || entry->pattern[0] == '*' || entry->pattern[0] == '.')
return entry;
dot_entry = xmalloc (sizeof *dot_entry);
*dot_entry = *entry;
dot_entry->next = entry;
len = strlen (entry->pattern) + 2;
dot_pat = xmalloc (len);
dot_pat[0] = '.';
memcpy (dot_pat + 1, entry->pattern, len - 1);
dot_entry->pattern = dot_pat;
if (entry->symbol != NULL)
{
len = strlen (entry->symbol) + 2;
dot_pat = xmalloc (len);
dot_pat[0] = '.';
memcpy (dot_pat + 1, entry->symbol, len - 1);
dot_entry->symbol = dot_pat;
}
return dot_entry;
}
/* Avoid processing the fake stub_file in vercheck, stat_needed and
check_needed routines. */
static void (*real_func) (lang_input_statement_type *);
static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l)
{
if (l != stub_file)
(*real_func) (l);
}
static void
ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
{
real_func = func;
lang_for_each_input_file (&ppc_for_each_input_file_wrapper);
}
#define lang_for_each_input_file ppc_lang_for_each_input_file
EOF
if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then
cat >>e${EMULATION_NAME}.c <<EOF
/* Special handling for embedded SPU executables. */
extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);
static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *);
static bfd_boolean
ppc64_recognized_file (lang_input_statement_type *entry)
{
if (embedded_spu_file (entry, "-m64"))
return TRUE;
return gld${EMULATION_NAME}_load_symbols (entry);
}
EOF
LDEMUL_RECOGNIZED_FILE=ppc64_recognized_file
fi
# 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)
#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='
{ "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 },
{ "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, _("\
--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"
));
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='
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:
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_${EMULATION_NAME}_emulation
#
LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
bfd/ * elf-bfd.h: Formatting. (_bfd_elf_map_sections_to_segments): Declare. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame_hdr): Don't clear program_header_size. * elf.c (get_program_header_size): Move. Don't use or set saved program_header_size here. (elf_modify_segment_map): New function. Split out from.. (assign_file_positions_for_load_sections): ..here. Assert header size is correct. Remove dead code. (_bfd_elf_map_sections_to_segments): Rename from map_sections_to_segments. Make global. Use get_program_header_size when we need estimate of header size. Call elf_modify_segment_map. Set program_header_size. (print_segment_map): Delete. (_bfd_elf_sizeof_headers): If segment_map available, get the actual size. * elf32-arm.c (elf32_arm_symbian_modify_segment_map): Make safe for calling more than once. * elf32-bfin.c (elf32_bfinfdpic_modify_segment_map): Likewise. * elf32-frv.c (elf32_frvfdpic_modify_segment_map): Likewise. * elfxx-mips.c (_bfd_mips_elf_modify_segment_map): Likewise. * elf32-i370.c (elf_backend_add_symbol_hook): Delete. (elf_backend_additional_program_headers): Delete. (elf_backend_modify_segment_map): Delete. * elf64-hppa.c (elf64_hppa_modify_segment_map): Convert to ISO C. * elfxx-ia64.c (elfNN_ia64_modify_segment_map): Likewise. * doc/bfdint.texi: Delete SIZEOF_HEADERS difficulties. ld/ * Makefile.am (ELF_DEPS): Define. Use in emul file deps. Fix many ELF emul file deps that incorrectly said they needed elf32.em instead of generic.em. Add genelf.em as required. * Makefile.in: Regenerate. * ldlang.c (lang_process): Call ldemul_finish before lang_check_section_addresses. * emulparams/arcelf.sh: Generic elf target needs genelf. * emulparams/d30v_e.sh: Likewise. * emulparams/d30v_o.sh: Likewise. * emulparams/d30velf.sh: Likewise. * emulparams/elf32_dlx.sh: Likewise. * emulparams/elf32_i860.sh: Likewise. * emulparams/elf32fr30.sh: Likewise. * emulparams/elf32frv.sh: Likewise. * emulparams/elf32iq10.sh: Likewise. * emulparams/elf32iq2000.sh: Likewise. * emulparams/elf32mt.sh: Likewise. * emulparams/mn10200.sh: Likewise. * emulparams/or32.sh: Likewise. * emulparams/or32elf.sh: Likewise. * emulparams/pjelf.sh: Likewise. * emulparams/msp430all.sh: Likewise. Extract common entries. * emulparams/pjlelf.sh: Include pjelf.sh. * emulparams/elf32frvfd.sh (EXTRA_EM_FILE): Unset. * emulparams/mn10300.sh (EXTRA_EM_FILE): Unset. * emultempl/elf-generic.em: New file. * emultempl/genelf.em: New file. * emultempl/elf32.em: Include elf-generic.em. (gld${EMULATION_NAME}_layout_sections_again): Delete. (gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/hppaelf.em (hppaelf_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from hppaelf_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. * emultempl/mmo.em: Correct comment. Include elf-bfd.h and source elf-generic.em. (mmo_finish): Call gld${EMULATION_NAME}_map_segments. * emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise. (gld${EMULATION_NAME}_finish): Rename from ppc_finish. Call gld${EMULATION_NAME}_map_segments. (LDEMUL_FINISH): Update. ld/testsuite/ * ld-elf/eh1.d: Update for fewer program headers. * ld-elf/eh2.d: Likewise. * ld-elf/eh3.d: Likewise.
2006-06-20 10:22:16 +08:00
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