diff options
| author | Kees Cook <keescook@chromium.org> | 2020-08-21 12:42:43 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-09-01 09:50:35 +0200 |
| commit | dfbe69689b4dee19021d8c315a5137b4790b5634 (patch) | |
| tree | 307896ff584b2d099070cb640bc78ca5630aacab | |
| parent | 03c2b85cb7f13e9bd82cbe4201ede52177d433f5 (diff) | |
vmlinux.lds.h: Add .gnu.version* to COMMON_DISCARDS
For vmlinux linking, no architecture uses the .gnu.version* sections,
so remove it via the COMMON_DISCARDS macro in preparation for adding
--orphan-handling=warn more widely. This is a work-around for what
appears to be a bug[1] in ld.bfd which warns for this synthetic section
even when none is found in input objects, and even when no section is
emitted for an output object[2].
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=26153
[2] https://lore.kernel.org/lkml/202006221524.CEB86E036B@keescook/
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Cc: linux-arch@vger.kernel.org
Link: https://lore.kernel.org/r/20200821194310.3089815-3-keescook@chromium.org
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 184b23d62784..f1f02a2f71b7 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -957,7 +957,9 @@ #define COMMON_DISCARDS \ *(.discard) \ *(.discard.*) \ - *(.modinfo) + *(.modinfo) \ + /* ld.bfd warns about .gnu.version* even when not emitted */ \ + *(.gnu.version*) \ #define DISCARDS \ /DISCARD/ : { \ |