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Josh Poimboeuf e390f9a968 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: d1091c7fa3 ("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>
2017-03-01 20:32:25 +01:00
..
basic fixdep: faster CONFIG_ search 2016-08-24 22:34:19 +02:00
coccinelle Coccinelle: misc: Add support for devm variant in all modes 2016-12-11 12:08:26 +01:00
dtc scripts/dtc: Update to upstream version 0931cea3ba20 2017-01-04 10:47:53 -06:00
gcc-plugins Merge branch 'for-next/gcc-plugin/structleak' into for-linus/gcc-plugins 2017-02-21 21:12:57 -08:00
gdb Revert "scripts/gdb: add a Radix Tree Parser" 2016-07-15 14:54:27 +09:00
genksyms kbuild: modversions: add infrastructure for emitting relative CRCs 2017-02-03 08:28:25 -08:00
kconfig Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-12-17 16:30:24 -08:00
ksymoops
mod objtool, modules: Discard objtool annotation sections for modules 2017-03-01 20:32:25 +01:00
package Merge branch 'kbuild/rc-fixes' into kbuild/misc 2016-12-11 21:20:34 +01:00
selinux selinux: use the kernel headers when building scripts/selinux 2016-12-21 10:39:25 -05:00
tracing ftrace/scripts: Add helper script to bisect function tracing problem functions 2016-09-21 13:56:55 -04:00
.gitignore KEYS: Reserve an extra certificate symbol for inserting without recompiling 2016-02-26 15:30:20 +00:00
adjust_autoksyms.sh kbuild: fix scripts/adjust_autoksyms.sh* for the no modules case 2016-12-11 22:30:10 +01:00
analyze_suspend.py AnalyzeSuspend: fix drag and zoom bug in javascript 2017-02-16 00:52:35 +01:00
asn1_compiler.c ASN.1: fix open failure check on headername 2016-04-06 14:06:48 +01:00
bloat-o-meter scripts/bloat-o-meter: compile .NUMBER regex 2016-12-12 18:55:06 -08:00
bootgraph.pl
check_00index.sh scripts: add a script to check if Documentation/00-INDEX is sane 2016-12-05 14:21:24 -07:00
check_extable.sh scripts: add check_extable.sh script. 2015-04-13 21:03:02 +09:30
check-lc_ctype.c DocBook: Use a fixed encoding for output 2015-09-28 01:31:48 -06:00
checkincludes.pl scripts/checkincludes.pl: add exit message for no duplicates found 2017-02-22 16:41:26 -08:00
checkkconfigsymbols.py checkkconfigsymbols.py: support Kconfig's 'imply' statement 2017-02-03 11:49:06 +01:00
checkpatch.pl checkpatch: warn when formats use %Z and suggest %z 2017-02-27 18:43:48 -08:00
checkstack.pl OpenRISC updates for 4.11 2017-02-24 18:37:03 -08:00
checksyscalls.sh x86/asm/entry: Move the arch/x86/syscalls/ definitions to arch/x86/entry/syscalls/ 2015-06-04 07:37:37 +02:00
checkversion.pl
cleanfile
cleanpatch
coccicheck scripts/coccicheck: Update reference for the corresponding documentation 2016-10-11 09:50:43 +02:00
config
conmakehash.c
const_structs.checkpatch const_structs.checkpatch: add frequently used from Julia Lawall's list 2016-10-11 15:06:30 -07:00
decode_stacktrace.sh scripts/decode_stacktrace.sh: Fix address line detection on x86 2016-11-29 14:19:50 +01:00
decodecode
depmod.sh
diffconfig
docproc.c docproc: print a comment about autogeneration for rst output 2016-05-14 09:56:56 -06:00
export_report.pl
extract_xc3028.pl [media] extract_xc3028.pl: move it to scripts/dir 2016-07-17 14:08:12 -03:00
extract-cert.c KEYS: Remove unnecessary header #inclusions from extract-cert.c 2015-09-25 16:31:45 +01:00
extract-ikconfig scripts/extract-ikconfig: Support LZ4-compressed images. 2015-04-15 14:01:12 +02:00
extract-module-sig.pl KEYS: Provide a script to extract a module signature 2015-10-21 15:18:36 +01:00
extract-sys-certs.pl KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert 2016-02-26 15:32:05 +00:00
extract-vmlinux
faddr2line scripts/faddr2line: Fix "size mismatch" error 2016-10-25 18:40:37 +02:00
gcc-goto.sh
gcc-ld
gcc-plugin.sh gcc-plugins: abort builds cleanly when not supported 2016-08-08 17:49:05 -07:00
gcc-version.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh scripts/has-stack-protector: add -fno-PIE 2016-11-09 22:28:05 +01:00
gen_initramfs_list.sh initramfs: Escape colons in depfile 2016-09-23 10:35:32 +02:00
get_dvb_firmware [media] doc-rst: move DVB avulse docs to Documentation/media 2016-07-17 14:02:45 -03:00
get_maintainer.pl get_maintainer: look for arbitrary letter prefixes in sections 2016-12-12 18:55:09 -08:00
gfp-translate
headerdep.pl
headers_check.pl headers_check: don't warn about c++ guards 2016-05-24 14:12:48 +10:00
headers_install.sh
headers.sh
insert-sys-cert.c KEYS: Reserve an extra certificate symbol for inserting without recompiling 2016-02-26 15:30:20 +00:00
kallsyms.c kbuild: modversions: add infrastructure for emitting relative CRCs 2017-02-03 08:28:25 -08:00
Kbuild.include Kbuild: Add cpp_its_S in ksym_dep_filter 2017-02-14 09:00:26 +00:00
kernel-doc kernel-doc: Handle returning pointers to pointers 2017-01-26 15:20:10 -07:00
kernel-doc-xml-ref scripts/kernel-doc: Adding cross-reference links to html documentation. 2015-08-16 22:11:16 -06:00
ld-version.sh ld-version: Drop the 4th and 5th version components 2016-05-13 14:02:05 +02:00
Lindent scripts/Lindent: clean up and optimize 2017-02-22 16:41:26 -08:00
link-vmlinux.sh kbuild: minor improvement for thin archives build 2016-11-29 15:58:57 +01:00
Makefile GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
Makefile.asm-generic kbuild: Remove stale asm-generic wrappers 2016-07-07 15:58:45 +02:00
Makefile.build kbuild: modversions: add infrastructure for emitting relative CRCs 2017-02-03 08:28:25 -08:00
Makefile.clean Shared library support 2016-06-07 22:57:10 +02:00
Makefile.dtbinst dtbsinstall: don't move target directory out of the way 2016-01-28 11:40:32 +01:00
Makefile.extrawarn Kbuild: enable -Wmaybe-uninitialized warnings by default 2016-11-11 08:45:08 -08:00
Makefile.fwinst
Makefile.gcc-plugins powerpc updates for 4.11 part 1. 2017-02-22 10:30:38 -08:00
Makefile.headersinst
Makefile.help
Makefile.host Shared library support 2016-06-07 22:57:10 +02:00
Makefile.kasan kasan: turn on -fsanitize-address-use-after-scope 2016-12-12 18:55:09 -08:00
Makefile.lib Merge branch 'akpm' (patches from Andrew) 2016-08-02 21:08:07 -04:00
Makefile.modbuiltin
Makefile.modinst modsign: Abort modules_install when signing fails 2015-08-07 16:26:13 +01:00
Makefile.modpost kbuild: add arch specific post-link Makefile 2016-09-09 10:47:00 +02:00
Makefile.modsign
Makefile.ubsan Kbuild: enable -Wmaybe-uninitialized warning for "make W=1" 2016-11-11 08:45:08 -08:00
makelst
markup_oops.pl
mkcompile_h
mkmakefile
mksysmap mksysmap: Add h8300 local symbol pattern 2015-06-23 13:35:47 +09:00
mkuboot.sh
mkversion
module-common.lds objtool, modules: Discard objtool annotation sections for modules 2017-03-01 20:32:25 +01:00
namespace.pl kallsyms: add support for relative offsets in kallsyms address table 2016-03-15 16:55:16 -07:00
objdiff
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel scripts: add "prune-kernel" script to clean up old kernel images 2016-02-09 10:09:52 -08:00
recordmcount.c recordmcount: arm: Implement make_nop 2016-11-14 16:43:00 -05:00
recordmcount.h recordmcount: Fix endianness handling bug for nop_mcount 2015-11-03 10:45:26 -05:00
recordmcount.pl scripts/spelling.txt: add "swith" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
setlocalversion kbuild: setlocalversion: print error to STDERR 2016-06-20 17:37:45 +02:00
show_delta
sign-file.c sign-file: fix build error in sign-file.c with libressl 2017-02-10 12:43:47 +11:00
sortextable.c powerpc: Build-time sort the exception table 2016-11-14 11:11:51 +11:00
sortextable.h
spelling.txt scripts/spelling.txt: add some typo-words 2017-02-27 18:43:47 -08:00
stackdelta scripts: add stackdelta script 2015-08-28 17:04:40 +02:00
stackusage scripts: add stackusage script 2015-08-28 17:04:40 +02:00
tags.sh scripts/tags.sh: include arch/Kconfig* for tags generation 2017-02-22 16:41:26 -08:00
unifdef.c
ver_linux ver_linux: rename ver_linux.awk to ver_linux 2016-08-31 13:59:31 +02:00
xen-hypercalls.sh
xz_wrap.sh