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[binutils-gdb] hppa -z relro again
- From: sergiodj+buildbot at sergiodj dot net
- To: gdb-testers at sourceware dot org
- Date: Thu, 16 Feb 2017 09:39:24 -0500
- Subject: [binutils-gdb] hppa -z relro again
- Authentication-results: sourceware.org; auth=none
*** TEST RESULTS FOR COMMIT a8c75b765e57aaebb99d4e32e0f228835cff2737 ***
Author: Alan Modra <amodra@gmail.com>
Branch: master
Commit: a8c75b765e57aaebb99d4e32e0f228835cff2737
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.