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| author | Alan Modra <amodra@gmail.com> | 2020-06-19 09:17:20 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-06-19 09:50:20 +0930 |
| commit | 5fd104addfddb68844fb8df67be832ee98ad9888 (patch) | |
| tree | c8a0805ad47e7cdce9e7a8d3aff24eb4a158d335 /ld/emultempl/scoreelf.em | |
| parent | 753d1583f7e61ae4b6a016accaa65ab2ea776e41 (diff) | |
| download | gdb-5fd104addfddb68844fb8df67be832ee98ad9888.zip gdb-5fd104addfddb68844fb8df67be832ee98ad9888.tar.gz gdb-5fd104addfddb68844fb8df67be832ee98ad9888.tar.bz2 | |
Emit a warning when -z relro is unsupported
ld silently accepts -z relro and -z norelro for targets that lack the
necessary GNU_RELRO support. This patch makes those targets emit a
warning instead, and adds testsuite infrastructure to detect when
relro is unsupported.
binutils/
* testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
* testsuite/lib/binutils-common.exp (check_relro_support): New proc.
(run_dump_test): Use check_relro_support to decide whether to pass
extra ld option "-z norelro".
ld/
* emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Omit
-z relro and -z norelro when target support for GNU_RELRO is lacking.
(gld${EMULATION_NAME}_before_parse): Ignore RELRO default too.
* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse): Ignore
RELRO default when target support for GNU_RELRO is lacking.
* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
* emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Likewise.
* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
* testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
* testsuite/ld-elf/pr16322.d: xfail when no relro support.
* testsuite/ld-elf/pr22393-1a.d: Likewise.
* testsuite/ld-elf/pr22393-1b.d: Likewise.
* testsuite/ld-elf/shared.exp (pr20995-2.so, pr20995-2): Likewise.
* testsuite/lib/ld-lib.exp (run_ld_link_tests): Use check_relro_support
to decide whether to pass extra ld option "-z norelro".
Diffstat (limited to 'ld/emultempl/scoreelf.em')
| -rw-r--r-- | ld/emultempl/scoreelf.em | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ld/emultempl/scoreelf.em b/ld/emultempl/scoreelf.em index 327ec6b..70b9a70 100644 --- a/ld/emultempl/scoreelf.em +++ b/ld/emultempl/scoreelf.em @@ -40,7 +40,13 @@ gld${EMULATION_NAME}_before_parse (void) config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; link_info.check_relocs_after_open_input = TRUE; +EOF +if test -n "$COMMONPAGESIZE"; then +fragment <<EOF link_info.relro = DEFAULT_LD_Z_RELRO; +EOF +fi +fragment <<EOF } static void |