diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2002-02-19 12:40:32 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2002-02-19 12:40:32 +0000 |
| commit | 2182c31ee3a8d32ebf6a8e5e93a5a7d6849bf294 (patch) | |
| tree | 310a6b7da27de791d1529d74ff71026417d2f8db /bfd/elf-eh-frame.c | |
| parent | cb6aeb85078fd4732d2725cf34e00061fa9d5942 (diff) | |
| download | binutils-redhat-2182c31ee3a8d32ebf6a8e5e93a5a7d6849bf294.tar.gz | |
* elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Enable
absptr -> pcrel optimization for shared libs.
Only create minimal .eh_frame_hdr if absptr FDE encoding in shared
library cannot be converted to pcrel.
(_bfd_elf_eh_frame_section_offset): Return -2 if making absptr
relative.
* elf32-i386.c (elf_i386_relocate_section): If
_bfd_elf_section_offset returned -2, skip, but make sure the
relocation is installed.
* elf32-arm.h (elf32_arm_final_link_relocate): Likewise.
* elf32-cris.c (cris_elf_relocate_section): Likewise.
* elf32-hppa.c (elf32_hppa_relocate_section): Likewise.
* elf32-i370.c (i370_elf_relocate_section): Likewise.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-s390.c (elf_s390_relocate_section): Likewise.
* elf32-sh.c (sh_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
* elf64-s390.c (elf_s390_relocate_section): Likewise.
* elf64-sh64.c (sh_elf64_relocate_section): Likewise.
* elf64-sparc.c (sparc64_elf_relocate_section): Likewise.
* elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise.
* elf64-alpha.c (elf64_alpha_relocate_section): Handle
_bfd_elf_section_offset returning -2 the same way as -1.
* elfxx-ia64.c (elfNN_ia64_install_dyn_reloc): Likewise.
* elf32-mips.c (mips_elf_create_dynamic_relocation): Add FIXME
and BFD_ASSERT.
* elf64-mips.c (mips_elf64_create_dynamic_relocation): Likewise.
Diffstat (limited to 'bfd/elf-eh-frame.c')
| -rw-r--r-- | bfd/elf-eh-frame.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c index b479c00f32..20cbfb22c8 100644 --- a/bfd/elf-eh-frame.c +++ b/bfd/elf-eh-frame.c @@ -586,16 +586,12 @@ _bfd_elf_discard_section_eh_frame (abfd, info, sec, ehdrsec, } /* For shared libraries, try to get rid of as many RELATIVE relocs - as possible. - FIXME: For this to work, ELF backends need to perform the - relocation if omitting dynamic relocs, not skip it. */ - if (0 - && info->shared + as possible. */ + if (info->shared && (cie.fde_encoding & 0xf0) == DW_EH_PE_absptr) cie.make_relative = 1; - if (0 - && info->shared + if (info->shared && (cie.lsda_encoding & 0xf0) == DW_EH_PE_absptr) cie.make_lsda_relative = 1; @@ -636,6 +632,16 @@ _bfd_elf_discard_section_eh_frame (abfd, info, sec, ehdrsec, } else { + if (info->shared + && (cie.fde_encoding & 0xf0) == DW_EH_PE_absptr + && cie.make_relative == 0) + { + /* If shared library uses absolute pointers + which we cannot turn into PC relative, + don't create the binary search table, + since it is affected by runtime relocations. */ + hdr_info->table = false; + } cie_usage_count++; hdr_info->fde_count++; } @@ -856,7 +862,7 @@ _bfd_elf_eh_frame_section_offset (output_bfd, sec, offset) if (sec_info->entry[mid].make_relative && ! sec_info->entry[mid].cie && offset == sec_info->entry[mid].offset + 8) - return (bfd_vma) -1; + return (bfd_vma) -2; /* If converting LSDA pointers to DW_EH_PE_pcrel, there will be no need for run-time relocation against LSDA field. */ @@ -865,7 +871,7 @@ _bfd_elf_eh_frame_section_offset (output_bfd, sec, offset) && (offset == (sec_info->entry[mid].offset + 8 + sec_info->entry[mid].lsda_offset))) - return (bfd_vma) -1; + return (bfd_vma) -2; return (offset + sec_info->entry[mid].new_offset - sec_info->entry[mid].offset); |