mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
bfd/
* elflink.h (elf_link_add_object_symbols): Use !info->executable
instead of info->shared where appropriate.
(bfd_elfNN_size_dynamic_sections, elf_link_output_extsym): Likewise.
* elflink.c (_bfd_elf_create_got_section): Likewise.
(_bfd_elf_link_create_dynamic_sections): Likewise.
(_bfd_elf_link_assign_sym_version): Likewise.
* elf32-i386.c (elf_i386_size_dynamic_sections): Create .interp section
and DT_DEBUG dynamic tag even for position independent executables.
* elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise.
* elf32-s390.c (elf_s390_size_dynamic_sections: Likewise.
* elf64-ppc.c (ppc64_elf_size_dynamic_sections: Likewise.
* elf64-s390.c (elf_s390_size_dynamic_sections: Likewise.
* elf64-x86-64.c (elf64_x86_64_size_dynamic_sections: Likewise.
* elfxx-ia64.c (elfNN_ia64_size_dynamic_sections: Likewise.
* elf32-sparc.c (elf32_sparc_size_dynamic_sections: Likewise.
* elf64-alpha.c (elf64_alpha_size_dynamic_sections: Likewise.
* elf64-sparc.c (sparc64_elf_size_dynamic_sections: Likewise.
include/
* bfdlink.h (struct bfd_link_info): Add pie and executable
bits.
ld/
* lexsup.c (OPTION_PIE): Define.
(ld_options): Add -pie and --pic-executable options.
(parse_args): Handle OPTION_PIE.
* ldmain.c (main): Initialize link_info.pie and
link_info.executable.
* genscripts.sh: Generate PIE scripts.
* ld.texinfo: Document -pie and --pic-executable options.
* emultempl/elf32.em (gld${EMULATION_NAME}_after_open):
(gld${EMULATION_NAME}_place_orphan): Likewise.
(gld${EMULATION_NAME}_get_script): Include PIE scripts.
* scripttempl/elf.sc: In PIE scripts set . the same way as in
shared scripts.
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Set to yes.
* emulparams/elf64_ia64.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf32ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_x86_64.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf32_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64alpha.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf64_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Likewise.
This commit is contained in:
Jakub Jelinek
parent
cdaeef2eb5
commit
36af4a4e51
@ -1,3 +1,24 @@
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2003-05-30 Ulrich Drepper <drepper@redhat.com>
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Jakub Jelinek <jakub@redhat.com>
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* elflink.h (elf_link_add_object_symbols): Use !info->executable
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instead of info->shared where appropriate.
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(bfd_elfNN_size_dynamic_sections, elf_link_output_extsym): Likewise.
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* elflink.c (_bfd_elf_create_got_section): Likewise.
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(_bfd_elf_link_create_dynamic_sections): Likewise.
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(_bfd_elf_link_assign_sym_version): Likewise.
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* elf32-i386.c (elf_i386_size_dynamic_sections): Create .interp section
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and DT_DEBUG dynamic tag even for position independent executables.
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* elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise.
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* elf32-s390.c (elf_s390_size_dynamic_sections: Likewise.
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* elf64-ppc.c (ppc64_elf_size_dynamic_sections: Likewise.
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* elf64-s390.c (elf_s390_size_dynamic_sections: Likewise.
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* elf64-x86-64.c (elf64_x86_64_size_dynamic_sections: Likewise.
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* elfxx-ia64.c (elfNN_ia64_size_dynamic_sections: Likewise.
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* elf32-sparc.c (elf32_sparc_size_dynamic_sections: Likewise.
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* elf64-alpha.c (elf64_alpha_size_dynamic_sections: Likewise.
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* elf64-sparc.c (sparc64_elf_size_dynamic_sections: Likewise.
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2003-05-30 Kris Warkentin <kewarken@qnx.com>
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* elf.c (elfcore_grok_nto_status): Only set lwpid for the active or
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@ -1797,7 +1797,7 @@ elf_i386_size_dynamic_sections (output_bfd, info)
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if (htab->elf.dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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if (s == NULL)
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@ -1963,7 +1963,7 @@ elf_i386_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (! info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -2920,7 +2920,7 @@ ppc_elf_size_dynamic_sections (output_bfd, info)
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if (elf_hash_table (info)->dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
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BFD_ASSERT (s != NULL);
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@ -3102,7 +3102,7 @@ ppc_elf_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (!info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -1927,7 +1927,7 @@ elf_s390_size_dynamic_sections (output_bfd, info)
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if (htab->elf.dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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if (s == NULL)
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@ -2085,7 +2085,7 @@ elf_s390_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (! info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -1820,7 +1820,7 @@ elf32_sparc_size_dynamic_sections (output_bfd, info)
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if (elf_hash_table (info)->dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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BFD_ASSERT (s != NULL);
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@ -1997,7 +1997,7 @@ elf32_sparc_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (!info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -4090,7 +4090,7 @@ elf64_alpha_size_dynamic_sections (output_bfd, info)
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if (elf_hash_table (info)->dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (!info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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BFD_ASSERT (s != NULL);
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@ -4176,7 +4176,7 @@ elf64_alpha_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (!info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -5737,7 +5737,7 @@ ppc64_elf_size_dynamic_sections (output_bfd, info)
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if (htab->elf.dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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if (s == NULL)
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@ -5936,7 +5936,7 @@ ppc64_elf_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (!info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -1898,7 +1898,7 @@ elf_s390_size_dynamic_sections (output_bfd, info)
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if (htab->elf.dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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if (s == NULL)
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@ -2056,7 +2056,7 @@ elf_s390_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (! info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -1781,7 +1781,7 @@ sparc64_elf_size_dynamic_sections (output_bfd, info)
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if (elf_hash_table (info)->dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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BFD_ASSERT (s != NULL);
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@ -1880,7 +1880,7 @@ sparc64_elf_size_dynamic_sections (output_bfd, info)
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struct elf_strtab_hash *dynstr;
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struct elf_link_hash_table *eht = elf_hash_table (info);
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if (!info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -1618,7 +1618,7 @@ elf64_x86_64_size_dynamic_sections (output_bfd, info)
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if (htab->elf.dynamic_sections_created)
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{
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/* Set the contents of the .interp section to the interpreter. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_get_section_by_name (dynobj, ".interp");
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if (s == NULL)
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@ -1779,7 +1779,7 @@ elf64_x86_64_size_dynamic_sections (output_bfd, info)
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#define add_dynamic_entry(TAG, VAL) \
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bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
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if (! info->shared)
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if (info->executable)
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{
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if (!add_dynamic_entry (DT_DEBUG, 0))
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return FALSE;
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@ -94,7 +94,7 @@ _bfd_elf_create_got_section (abfd, info)
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h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
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h->type = STT_OBJECT;
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if (info->shared
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if (! info->executable
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&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
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return FALSE;
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@ -144,7 +144,7 @@ _bfd_elf_link_create_dynamic_sections (abfd, info)
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/* A dynamically linked executable has a .interp section, but a
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shared library does not. */
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if (! info->shared)
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if (info->executable)
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{
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s = bfd_make_section (abfd, ".interp");
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if (s == NULL
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@ -227,7 +227,7 @@ _bfd_elf_link_create_dynamic_sections (abfd, info)
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h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
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h->type = STT_OBJECT;
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if (info->shared
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if (! info->executable
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&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
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return FALSE;
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@ -295,7 +295,7 @@ _bfd_elf_create_dynamic_sections (abfd, info)
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h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
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h->type = STT_OBJECT;
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if (info->shared
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if (! info->executable
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&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
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return FALSE;
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}
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@ -1760,7 +1760,7 @@ _bfd_elf_link_assign_sym_version (h, data)
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/* If we are building an application, we need to create a
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version node for this version. */
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if (t == NULL && ! info->shared)
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if (t == NULL && info->executable)
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{
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struct bfd_elf_version_tree **pp;
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int version_index;
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@ -474,7 +474,7 @@ elf_link_add_object_symbols (abfd, info)
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.gnu.warning.SYMBOL are treated as warning symbols for the given
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symbol. This differs from .gnu.warning sections, which generate
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warnings when they are included in an output file. */
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if (! info->shared)
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if (info->executable)
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{
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asection *s;
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@ -1321,7 +1321,7 @@ elf_link_add_object_symbols (abfd, info)
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}
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else
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new_flag = ELF_LINK_HASH_DEF_REGULAR;
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if (info->shared
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if (! info->executable
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|| (old_flags & (ELF_LINK_HASH_DEF_DYNAMIC
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| ELF_LINK_HASH_REF_DYNAMIC)) != 0)
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dynsym = TRUE;
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@ -2174,7 +2174,7 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
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if (bfd_get_section_by_name (output_bfd, ".preinit_array") != NULL)
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{
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/* DT_PREINIT_ARRAY is not allowed in shared library. */
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if (info->shared)
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if (! info->executable)
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{
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bfd *sub;
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asection *o;
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@ -2440,7 +2440,7 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
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if (info->flags_1)
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{
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if (! info->shared)
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if (info->executable)
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info->flags_1 &= ~ (DF_1_INITFIRST
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| DF_1_NODELETE
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| DF_1_NOOPEN);
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@ -4417,7 +4417,8 @@ elf_link_output_extsym (h, data)
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referenced by regular files, because we will already have issued
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warnings for them. */
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if (! finfo->info->relocateable
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&& (! finfo->info->shared || ! finfo->info->allow_shlib_undefined)
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&& (finfo->info->executable
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|| ! finfo->info->allow_shlib_undefined)
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&& h->root.type == bfd_link_hash_undefined
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&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
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&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0
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@ -2903,7 +2903,7 @@ elfNN_ia64_size_dynamic_sections (output_bfd, info)
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/* Set the contents of the .interp section to the interpreter. */
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if (ia64_info->root.dynamic_sections_created
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&& !info->shared)
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&& info->executable)
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{
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sec = bfd_get_section_by_name (dynobj, ".interp");
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BFD_ASSERT (sec != NULL);
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@ -3078,7 +3078,7 @@ elfNN_ia64_size_dynamic_sections (output_bfd, info)
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later (in finish_dynamic_sections) but we must add the entries now
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so that we get the correct size for the .dynamic section. */
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if (!info->shared)
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if (info->executable)
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{
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/* The DT_DEBUG entry is filled in by the dynamic linker and used
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by the debugger. */
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@ -1,3 +1,9 @@
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2003-05-30 Ulrich Drepper <drepper@redhat.com>
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Jakub Jelinek <jakub@redhat.com>
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* bfdlink.h (struct bfd_link_info): Add pie and executable
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bits.
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2003-05-21 Nick Clifton <nickc@redhat.com>
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* bfdlink.h (struct bfd_link_hash_table): Fix typo in comment.
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@ -291,6 +291,12 @@ struct bfd_link_info
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/* TRUE if relaxation is being finalized. */
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unsigned int relax_finalizing: 1;
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/* TRUE if generating a position independent executable. */
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unsigned int pie: 1;
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/* TRUE if generating an executable, position independent or not. */
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unsigned int executable : 1;
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/* Which symbols to strip. */
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enum bfd_link_strip strip;
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27
ld/ChangeLog
27
ld/ChangeLog
@ -1,3 +1,30 @@
|
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2003-05-30 Ulrich Drepper <drepper@redhat.com>
|
||||
Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
* lexsup.c (OPTION_PIE): Define.
|
||||
(ld_options): Add -pie and --pic-executable options.
|
||||
(parse_args): Handle OPTION_PIE.
|
||||
* ldmain.c (main): Initialize link_info.pie and
|
||||
link_info.executable.
|
||||
* genscripts.sh: Generate PIE scripts.
|
||||
* ld.texinfo: Document -pie and --pic-executable options.
|
||||
* emultempl/elf32.em (gld${EMULATION_NAME}_after_open):
|
||||
(gld${EMULATION_NAME}_place_orphan): Likewise.
|
||||
(gld${EMULATION_NAME}_get_script): Include PIE scripts.
|
||||
* scripttempl/elf.sc: In PIE scripts set . the same way as in
|
||||
shared scripts.
|
||||
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Set to yes.
|
||||
* emulparams/elf64_ia64.sh (GENERATE_PIE_SCRIPT): Likewise.
|
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* emulparams/elf32ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
|
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* emulparams/elf64ppc.sh (GENERATE_PIE_SCRIPT): Likewise.
|
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* emulparams/elf_x86_64.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf32_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf64_sparc.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf64alpha.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf64_s390.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
* emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Likewise.
|
||||
|
||||
2003-05-30 H.J. Lu <hongjiu.lu@intel.com>
|
||||
|
||||
* genscripts.sh: Create tmpdir/libpath.exp.
|
||||
|
||||
@ -10,4 +10,5 @@ MACHINE=
|
||||
TEMPLATE_NAME=elf32
|
||||
DATA_PLT=
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
NO_SMALL_DATA=yes
|
||||
|
||||
@ -4,6 +4,7 @@
|
||||
TEMPLATE_NAME=elf32
|
||||
EXTRA_EM_FILE=ppc32elf
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
SCRIPT_NAME=elf
|
||||
OUTPUT_FORMAT="elf32-powerpc"
|
||||
TEXT_START_ADDR=0x01800000
|
||||
|
||||
@ -16,6 +16,7 @@ fi
|
||||
TEXT_START_ADDR="0x4000000000000000"
|
||||
DATA_ADDR="0x6000000000000000 + (. & (${MAXPAGESIZE} - 1))"
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
NOP=0x00300000010070000002000001000400 # a bundle full of nops
|
||||
OTHER_GOT_SECTIONS="
|
||||
.IA_64.pltoff ${RELOCATING-0} : { *(.IA_64.pltoff) }"
|
||||
|
||||
@ -9,6 +9,7 @@ MACHINE=
|
||||
NOP=0x07070707
|
||||
TEMPLATE_NAME=elf32
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
|
||||
# Treat a host that matches the target with the possible exception of "x"
|
||||
# in the name as if it were native.
|
||||
|
||||
@ -8,6 +8,7 @@ ARCH="sparc:v9"
|
||||
MACHINE=
|
||||
DATA_PLT=
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
NOP=0x01000000
|
||||
NO_SMALL_DATA=yes
|
||||
|
||||
|
||||
@ -11,6 +11,7 @@ NONPAGED_TEXT_START_ADDR="0x120000000"
|
||||
ARCH=alpha
|
||||
MACHINE=
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
DATA_PLT=
|
||||
# Note that the number is always big-endian, thus we have to
|
||||
# reverse the digit string.
|
||||
|
||||
@ -2,6 +2,7 @@ TEMPLATE_NAME=elf32
|
||||
EXTRA_EM_FILE=ppc64elf
|
||||
ELFSIZE=64
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
SCRIPT_NAME=elf
|
||||
OUTPUT_FORMAT="elf64-powerpc"
|
||||
TEXT_START_ADDR=0x10000000
|
||||
|
||||
@ -9,4 +9,5 @@ MACHINE=
|
||||
NOP=0x90909090
|
||||
TEMPLATE_NAME=elf32
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
NO_SMALL_DATA=yes
|
||||
|
||||
@ -8,3 +8,4 @@ MACHINE=
|
||||
NOP=0x07070707
|
||||
TEMPLATE_NAME=elf32
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
|
||||
@ -10,6 +10,7 @@ MACHINE=
|
||||
NOP=0x90909090
|
||||
TEMPLATE_NAME=elf32
|
||||
GENERATE_SHLIB_SCRIPT=yes
|
||||
GENERATE_PIE_SCRIPT=yes
|
||||
NO_SMALL_DATA=yes
|
||||
|
||||
if [ "x${host}" = "x${target}" ]; then
|
||||
|
||||
@ -643,7 +643,7 @@ gld${EMULATION_NAME}_after_open ()
|
||||
struct bfd_link_needed_list *needed, *l;
|
||||
|
||||
/* We only need to worry about this when doing a final link. */
|
||||
if (link_info.relocateable || link_info.shared)
|
||||
if (link_info.relocateable || !link_info.executable)
|
||||
return;
|
||||
|
||||
/* Get the list of files which appear in DT_NEEDED entries in
|
||||
@ -1180,7 +1180,7 @@ gld${EMULATION_NAME}_place_orphan (file, s)
|
||||
|
||||
/* If this is a final link, then always put .gnu.warning.SYMBOL
|
||||
sections into the .text section to get them out of the way. */
|
||||
if (! link_info.shared
|
||||
if (link_info.executable
|
||||
&& ! link_info.relocateable
|
||||
&& strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
|
||||
&& hold_text.os != NULL)
|
||||
@ -1474,6 +1474,14 @@ if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ;
|
||||
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
||||
fi
|
||||
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
||||
echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
|
||||
fi
|
||||
echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
|
||||
fi
|
||||
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
||||
echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
||||
@ -1511,6 +1519,18 @@ cat >>e${EMULATION_NAME}.c <<EOF
|
||||
return "ldscripts/${EMULATION_NAME}.xn";
|
||||
EOF
|
||||
fi
|
||||
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
||||
cat >>e${EMULATION_NAME}.c <<EOF
|
||||
else if (link_info.pie && link_info.combreloc)
|
||||
return "ldscripts/${EMULATION_NAME}.xdc";
|
||||
EOF
|
||||
fi
|
||||
cat >>e${EMULATION_NAME}.c <<EOF
|
||||
else if (link_info.pie)
|
||||
return "ldscripts/${EMULATION_NAME}.xd";
|
||||
EOF
|
||||
fi
|
||||
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
||||
cat >>e${EMULATION_NAME}.c <<EOF
|
||||
|
||||
@ -236,6 +236,31 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
fi
|
||||
unset CREATE_SHLIB
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
LD_FLAG=pie
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
|
||||
CREATE_PIE=" "
|
||||
# Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR.
|
||||
(
|
||||
echo "/* Script for ld -pie: link position independent executable */"
|
||||
. ${srcdir}/emulparams/${EMULATION_NAME}.sh
|
||||
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xd
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
LD_FLAG=cpie
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
|
||||
( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
|
||||
. ${srcdir}/emulparams/${EMULATION_NAME}.sh
|
||||
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdc
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
fi
|
||||
unset CREATE_PIE
|
||||
fi
|
||||
|
||||
case " $EMULATION_LIBPATH " in
|
||||
|
||||
@ -1209,6 +1209,18 @@ command @code{OUTPUT_FORMAT} can also specify the output format, but
|
||||
this option overrides it. @xref{BFD}.
|
||||
@end ifclear
|
||||
|
||||
@kindex -pie
|
||||
@kindex --pic-executable
|
||||
@item -pie
|
||||
@itemx --pic-executable
|
||||
@cindex position independent executables
|
||||
Create a position independent executable. This is currently only supported on
|
||||
ELF platforms. Position independent executables are similar to shared
|
||||
libraries in that they are relocated by the dynamic linker to the virtual
|
||||
address OS chooses for them (which can varry between invocations), like
|
||||
normal dynamically linked executables they can be executed and symbols
|
||||
defined in the executable cannot be overridden by shared libraries.
|
||||
|
||||
@kindex -qmagic
|
||||
@item -qmagic
|
||||
This option is ignored for Linux compatibility.
|
||||
|
||||
@ -291,6 +291,8 @@ main (argc, argv)
|
||||
link_info.emitrelocations = FALSE;
|
||||
link_info.task_link = FALSE;
|
||||
link_info.shared = FALSE;
|
||||
link_info.pie = FALSE;
|
||||
link_info.executable = FALSE;
|
||||
link_info.symbolic = FALSE;
|
||||
link_info.export_dynamic = FALSE;
|
||||
link_info.static_link = FALSE;
|
||||
@ -368,6 +370,9 @@ main (argc, argv)
|
||||
einfo (_("%P%F: -f may not be used without -shared\n"));
|
||||
}
|
||||
|
||||
if (! link_info.shared || link_info.pie)
|
||||
link_info.executable = TRUE;
|
||||
|
||||
/* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
|
||||
don't see how else this can be handled, since in this case we
|
||||
must preserve all externally visible symbols. */
|
||||
|
||||
14
ld/lexsup.c
14
ld/lexsup.c
@ -138,6 +138,7 @@ int parsing_defsym = 0;
|
||||
#define OPTION_NO_STRIP_DISCARDED (OPTION_STRIP_DISCARDED + 1)
|
||||
#define OPTION_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_NO_STRIP_DISCARDED + 1)
|
||||
#define OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_ACCEPT_UNKNOWN_INPUT_ARCH + 1)
|
||||
#define OPTION_PIE (OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH + 1)
|
||||
|
||||
/* The long options. This structure is used for both the option
|
||||
parsing and the help text. */
|
||||
@ -370,6 +371,10 @@ static const struct ld_option ld_options[] =
|
||||
'\0', NULL, N_("Create a shared library"), ONE_DASH },
|
||||
{ {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
|
||||
'\0', NULL, NULL, ONE_DASH },
|
||||
{ {"pie", no_argument, NULL, OPTION_PIE},
|
||||
'\0', NULL, N_("Create a position independent executable"), ONE_DASH },
|
||||
{ {"pic-executable", no_argument, NULL, OPTION_PIE},
|
||||
'\0', NULL, NULL, TWO_DASHES },
|
||||
{ {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
|
||||
'\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
|
||||
{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
|
||||
@ -959,6 +964,15 @@ parse_args (argc, argv)
|
||||
else
|
||||
einfo (_("%P%F: -shared not supported\n"));
|
||||
break;
|
||||
case OPTION_PIE:
|
||||
if (config.has_shared)
|
||||
{
|
||||
link_info.shared = TRUE;
|
||||
link_info.pie = TRUE;
|
||||
}
|
||||
else
|
||||
einfo (_("%P%F: -pie not supported\n"));
|
||||
break;
|
||||
case 'h': /* Used on Solaris. */
|
||||
case OPTION_SONAME:
|
||||
command_line.soname = optarg;
|
||||
|
||||
@ -180,8 +180,9 @@ ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
|
||||
SECTIONS
|
||||
{
|
||||
/* Read-only sections, merged into text segment: */
|
||||
${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
|
||||
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}}
|
||||
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
|
||||
${CREATE_PIE+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
|
||||
${CREATE_SHLIB-${INTERP}}
|
||||
${INITIAL_READONLY_SECTIONS}
|
||||
${TEXT_DYNAMIC+${DYNAMIC}}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user