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| author | Alan Modra <amodra@gmail.com> | 2017-02-14 10:45:51 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-02-16 23:09:38 +1030 |
| commit | a8c75b765e57aaebb99d4e32e0f228835cff2737 (patch) | |
| tree | 2cea5382768b3cae9de0e04d151a7313d1024e77 /bfd/ChangeLog | |
| parent | 247d6c4c14769b7576d810a381a68e35388ee874 (diff) | |
| download | gdb-a8c75b765e57aaebb99d4e32e0f228835cff2737.zip gdb-a8c75b765e57aaebb99d4e32e0f228835cff2737.tar.gz gdb-a8c75b765e57aaebb99d4e32e0f228835cff2737.tar.bz2 | |
hppa -z relro again
I misunderstood the hppa alias problem. File offsets of segments need
to be such that no page is mapped twice with different permissions.
(Which still seems to me like something the kernel could fix, but
anyhow, this is not so difficult to achieve in ld.)
PR 21000
bfd/
* elf-bfd.h (struct elf_backend_data): Add no_page_alias.
* elfxx-target.h (elf_backend_no_page_alias): Define.
(elfNN_bed): Init new field.
* elf.c (assign_file_positions_for_load_sections): If no_page_alias
ensure PT_LOAD segment starts on a new page.
* elf32-hppa.c (elf_backend_no_page_alias): Define.
ld/
* testsuite/ld-elf/loadaddr1.d: Adjust for hppa file offsets.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-elf/loadaddr3a.d: Likewise.
* testsuite/ld-scripts/rgn-at5.d: Likewise.
Diffstat (limited to 'bfd/ChangeLog')
| -rw-r--r-- | bfd/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 4be12b8..0c45c44 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,15 @@ 2017-02-16 Alan Modra <amodra@gmail.com> + PR 21000 + * elf-bfd.h (struct elf_backend_data): Add no_page_alias. + * elfxx-target.h (elf_backend_no_page_alias): Define. + (elfNN_bed): Init new field. + * elf.c (assign_file_positions_for_load_sections): If no_page_alias + ensure PT_LOAD segment starts on a new page. + * elf32-hppa.c (elf_backend_no_page_alias): Define. + +2017-02-16 Alan Modra <amodra@gmail.com> + PR 21132 * elf32-hppa.c (allocate_plt_static): Allocate space for relocs if pic. |