794e51c094
* elf64-ppc.c: Define more insns used in plt call stubs.
(ppc64_elf_brtaken_reloc): Assume isa version 2 or above.
(ppc64_elf_relocate_section): Likewise.
(enum ppc_stub_type): Add ppc_stub_plt_call_r2save.
(struct ppc_link_hash_table): Increase size of stub_count array.
Add plt_stub_align and plt_thread_safe.
(ALWAYS_USE_FAKE_DEP, ALWAYS_EMIT_R2SAVE): Define.
(plt_stub_size, plt_stub_pad): New functions.
(build_plt_stub): Emit barriers for power7 thread safety. Don't
emit needless save of r2.
(build_tls_get_addr_stub): Adjust params.
(ppc_build_one_stub): Handle ppc_stub_plt_call_r2save and aligning
plt stubs. Adjust build_*plt_stub calls.
(ppc_size_one_stub): Similarly.
(ppc64_elf_size_stubs): Accept plt_thread_safe and plt_stub_align
params. Choose default for plt_thread_safe based on existence of
calls to thread creation functions. Modify plt_call to
plt_call_r2save when no tocsave reloc found. Align tail of stub
sections.
(ppc64_elf_build_stubs): Align tail of stub sections. Adjust
output of stub statistics.
(ppc64_elf_relocate_section): Handle ppc_stub_plt_call_r2save.
* elf64-ppc.h (ppc64_elf_size_stubs): Update prototype.
ld/
* emultempl/ppc64elf.em (PARSE_AND_LIST_PROLOGUE,
PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS,
PARSE_AND_LIST_ARGS_CASES): Handle --{no-,}plt-thread-safe and
--{no-,}plt-align.
(plt_thread_safe, plt_stub_align): New vars.
(gld${EMULATION_NAME}_after_allocation): Pass them to
ppc64_elf_size_stubs. Align stub sections according to plt_stub_align.
* ld.texinfo: Document new command line options, and an old
undocumented option.
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* PowerPC64-specific support for 64-bit ELF.
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Copyright 2002, 2003, 2004, 2005, 2007, 2008, 2010, 2011, 2012
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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void ppc64_elf_init_stub_bfd
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(bfd *, struct bfd_link_info *);
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bfd_boolean ppc64_elf_edit_opd
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(struct bfd_link_info *, bfd_boolean);
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asection *ppc64_elf_tls_setup
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(struct bfd_link_info *, int, int *);
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bfd_boolean ppc64_elf_tls_optimize
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(struct bfd_link_info *);
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bfd_boolean ppc64_elf_edit_toc
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(struct bfd_link_info *);
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bfd_boolean ppc64_elf_has_small_toc_reloc
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(asection *);
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bfd_vma ppc64_elf_toc
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(bfd *);
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int ppc64_elf_setup_section_lists
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(struct bfd_link_info *, asection *(*) (const char *, asection *),
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void (*) (void));
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void ppc64_elf_start_multitoc_partition
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(struct bfd_link_info *);
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bfd_boolean ppc64_elf_next_toc_section
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(struct bfd_link_info *, asection *);
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bfd_boolean ppc64_elf_layout_multitoc
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(struct bfd_link_info *);
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void ppc64_elf_finish_multitoc_partition
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(struct bfd_link_info *);
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bfd_boolean ppc64_elf_check_init_fini
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(struct bfd_link_info *);
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bfd_boolean ppc64_elf_next_input_section
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(struct bfd_link_info *, asection *);
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bfd_boolean ppc64_elf_size_stubs
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(struct bfd_link_info *, bfd_signed_vma, bfd_boolean, int, int);
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bfd_boolean ppc64_elf_build_stubs
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(bfd_boolean, struct bfd_link_info *, char **);
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void ppc64_elf_restore_symbols
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(struct bfd_link_info *info);
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