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authorJosh Poimboeuf <jpoimboe@redhat.com>2017-03-01 12:04:44 -0600
committerIngo Molnar <mingo@kernel.org>2017-03-01 20:32:25 +0100
commite390f9a9689a42f477a6073e2e7df530a4c1b740 (patch)
tree8d065e301c3781e102d04d0ce9051be27fe0df6e /scripts/module-common.lds
parent55149d06534ae2a7ba5f7a078353deb89b3fe891 (diff)
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objtool, modules: Discard objtool annotation sections for modules
The '__unreachable' and '__func_stack_frame_non_standard' sections are only used at compile time. They're discarded for vmlinux but they should also be discarded for modules. Since this is a recurring pattern, prefix the section names with ".discard.". It's a nice convention and vmlinux.lds.h already discards such sections. Also remove the 'a' (allocatable) flag from the __unreachable section since it doesn't make sense for a discarded section. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jessica Yu <jeyu@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: d1091c7fa3d5 ("objtool: Improve detection of BUG() and other dead ends") Link: http://lkml.kernel.org/r/20170301180444.lhd53c5tibc4ns77@treble Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/module-common.lds')
-rw-r--r--scripts/module-common.lds5
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/module-common.lds b/scripts/module-common.lds
index 73a2c7da0e55..cf7e52e4781b 100644
--- a/scripts/module-common.lds
+++ b/scripts/module-common.lds
@@ -4,7 +4,10 @@
* combine them automatically.
*/
SECTIONS {
- /DISCARD/ : { *(.discard) }
+ /DISCARD/ : {
+ *(.discard)
+ *(.discard.*)
+ }
__ksymtab 0 : { *(SORT(___ksymtab+*)) }
__ksymtab_gpl 0 : { *(SORT(___ksymtab_gpl+*)) }