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| author | Jan Kratochvil <jan.kratochvil@redhat.com> | 2009-02-01 12:05:25 +0000 |
|---|---|---|
| committer | Jan Kratochvil <jan.kratochvil@redhat.com> | 2009-02-01 12:05:25 +0000 |
| commit | 273f4430f86503a7e746f8710c6165f794a360bd (patch) | |
| tree | fc71715af5f5de20016d4a6f74e668c8dbf46734 /bfd | |
| parent | 88a0e15ba8649517e8e0ee6bfaa2de668b167068 (diff) | |
| download | gdb-273f4430f86503a7e746f8710c6165f794a360bd.zip gdb-273f4430f86503a7e746f8710c6165f794a360bd.tar.gz gdb-273f4430f86503a7e746f8710c6165f794a360bd.tar.bz2 | |
bfd/
* elf-eh-frame.c (REQUIRE_CLEARED_RELOCS) Remove.
(_bfd_elf_parse_eh_frame): Do not check relocations for removed FDEs.
ld/testsuite/
* ld-elf/eh-group2.s: New `.cfi_lsda' referencing `.gcc_except_table'.
* ld-elf/eh-group.exp: New test and conditional defininiton of `ELF64'.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/elf-eh-frame.c | 30 |
2 files changed, 15 insertions, 20 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ba07018..c1f8a9b 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2009-02-01 Jan Kratochvil <jan.kratochvil@redhat.com> + + * elf-eh-frame.c (REQUIRE_CLEARED_RELOCS) Remove. + (_bfd_elf_parse_eh_frame): Do not check relocations for removed FDEs. + 2009-01-31 Alan Modra <amodra@bigpond.net.au> * elflink.c (on_needed_list): New function. diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c index 579a6b8..3567c24 100644 --- a/bfd/elf-eh-frame.c +++ b/bfd/elf-eh-frame.c @@ -549,16 +549,6 @@ _bfd_elf_parse_eh_frame (bfd *abfd, struct bfd_link_info *info, < (bfd_size_type) ((buf) - ehbuf))) \ cookie->rel++ -#define REQUIRE_CLEARED_RELOCS(buf) \ - while (cookie->rel < cookie->relend \ - && (cookie->rel->r_offset \ - < (bfd_size_type) ((buf) - ehbuf))) \ - { \ - REQUIRE (cookie->rel->r_info == 0); \ - REQUIRE (cookie->rel->r_addend == 0); \ - cookie->rel++; \ - } - #define GET_RELOC(buf) \ ((cookie->rel < cookie->relend \ && (cookie->rel->r_offset \ @@ -817,16 +807,16 @@ _bfd_elf_parse_eh_frame (bfd *abfd, struct bfd_link_info *info, buf = last_fde + 4 + hdr_length; - /* Cleared FDE? The instructions will not be cleared but verify all - the relocation entries for them are cleared. */ - if (rsec == NULL) - { - REQUIRE_CLEARED_RELOCS (buf); - } - else - { - SKIP_RELOCS (buf); - } + /* For NULL RSEC (cleared FDE belonging to a discarded section) + the relocations are commonly cleared. We do not sanity check if + all these relocations are cleared as (1) relocations to + .gcc_except_table will remain uncleared (they will get dropped + with the drop of this unused FDE) and (2) BFD already safely drops + relocations of any type to .eh_frame by + elf_section_ignore_discarded_relocs. + TODO: The .gcc_except_table entries should be also filtered as + .eh_frame entries; or GCC could rather use COMDAT for them. */ + SKIP_RELOCS (buf); } /* Try to interpret the CFA instructions and find the first |