linux-stable/scripts
Changbin Du d4c8586432 kallsyms: ignore all local labels prefixed by '.L'
The llvm compiler can generate lots of local labels ('.LBB', '.Ltmpxxx',
'.L__unnamed_xx', etc.). These symbols usually are useless for debugging.
And they might overlap with handwritten symbols.

Before this change, a dumpstack shows a local symbol for epc:
[    0.040341][    T0] Hardware name: riscv-virtio,qemu (DT)
[    0.040376][    T0] epc : .LBB6_14+0x22/0x6a
[    0.040452][    T0]  ra : restore_all+0x12/0x6e

The simple solution is that we can ignore all local labels prefixed by '.L'.
For handwritten symbols which need to be preserved should drop the '.L'
prefix.

After this change, the C defined symbol is shown so we can locate the
problematical code immediately:
[    0.035795][    T0] Hardware name: riscv-virtio,qemu (DT)
[    0.036332][    T0] epc : trace_hardirqs_on+0x54/0x13c
[    0.036567][    T0]  ra : restore_all+0x12/0x6e

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-02-22 00:44:16 +09:00
..
atomic locking/atomics, kcsan: Add instrumentation for barriers 2021-12-09 16:42:27 -08:00
basic .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
clang-tools gen_compile_commands: fix missing 'sys' package 2021-09-19 10:13:03 +09:00
coccinelle drop fen.cocci 2022-01-15 12:15:35 +01:00
dtc scripts/dtc: dtx_diff: remove broken example from help text 2022-01-17 16:26:44 -06:00
dummy-tools kbuild: dummy-tools: adjust to stricter stackprotector check 2021-05-17 12:10:03 +09:00
gcc-plugins ARM development for 5.16: 2021-11-02 11:33:15 -07:00
gdb scripts/gdb: lx-dmesg: read records individually 2021-12-16 15:52:38 +01:00
genksyms .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
kconfig kconfig: fix missing '# end of' for empty menu 2022-02-18 11:36:17 +09:00
ksymoops
mod RISC-V Patches for the 5.17 Merge Window, Part 1 2022-01-19 11:38:21 +02:00
package kbuild: Add make tarzst-pkg build option 2021-10-12 11:50:46 +09:00
selinux scripts/selinux,selinux: update mdp to enable policy capabilities 2020-08-17 20:42:00 -04:00
tracing scripts/tracing: fix the bug that can't parse raw_trace_func 2021-08-04 17:49:26 -04:00
.gitignore certs: move scripts/extract-cert to certs/ 2022-01-08 18:28:21 +09:00
Kbuild.include certs: simplify $(srctree)/ handling and remove config_filename macro 2022-01-08 17:46:35 +09:00
Kconfig.include kbuild: check the minimum assembler version in Kconfig 2021-04-25 05:14:41 +09:00
Lindent
Makefile ftrace: Have architectures opt-in for mcount build time sorting 2022-01-27 19:15:44 -05:00
Makefile.asm-generic kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.build kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
Makefile.clang kbuild: Add -Werror=ignored-optimization-argument to CLANG_FLAGS 2021-09-19 10:55:18 +09:00
Makefile.clean kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
Makefile.compiler kbuild: remove TMPO from try-run 2021-04-25 05:25:56 +09:00
Makefile.debug kbuild: split DEBUG_CFLAGS out to scripts/Makefile.debug 2021-10-24 13:48:33 +09:00
Makefile.dtbinst kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.extrawarn Makefile.extrawarn: Move -Wunaligned-access to W=1 2022-02-08 13:20:11 +09:00
Makefile.gcc-plugins compiler hardening updates for v5.16-rc1 2021-11-01 17:09:03 -07:00
Makefile.headersinst kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.host kbuild: sort hostprogs before passing it to ifneq 2020-08-10 01:32:59 +09:00
Makefile.kasan kasan: always respect CONFIG_KASAN_STACK 2021-09-24 16:13:35 -07:00
Makefile.kcov kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled 2020-08-10 01:32:59 +09:00
Makefile.kcsan kcsan: Ignore GCC 11+ warnings about TSan runtime support 2021-12-09 16:42:27 -08:00
Makefile.lib kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
Makefile.modfinal kbuild: Unify options for BTF generation for vmlinux and modules 2021-11-01 18:09:58 -07:00
Makefile.modinst kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
Makefile.modpost kbuild: Fix comment typo in scripts/Makefile.modpost 2021-09-19 10:14:19 +09:00
Makefile.package kbuild: Add make tarzst-pkg build option 2021-10-12 11:50:46 +09:00
Makefile.ubsan ubsan: remove CONFIG_UBSAN_OBJECT_SIZE 2022-01-20 08:52:55 +02:00
Makefile.userprogs kbuild: add infrastructure to build userspace programs 2020-05-17 18:52:01 +09:00
adjust_autoksyms.sh kbuild: redo fake deps at include/ksym/*.h 2021-09-03 08:17:21 +09:00
as-version.sh kbuild: Switch to 'f' variants of integrated assembler flag 2021-09-03 08:17:20 +09:00
asn1_compiler.c
bin2c.c
bloat-o-meter scripts: switch explicitly to Python 3 2021-01-22 06:34:44 +09:00
bootgraph.pl
bpf_doc.py bpf: Add bpf_skc_to_unix_sock() helper 2021-10-21 15:11:06 -07:00
cc-can-link.sh
cc-version.sh kbuild: collect minimum tool versions into scripts/min-tool-version.sh 2021-04-25 05:14:26 +09:00
check-sysctl-docs docs: add a script to check sysctl docs 2020-02-25 03:35:16 -07:00
check_extable.sh scripts: check_extable: fix typo in user error message 2021-09-08 11:50:28 -07:00
checkdeclares.pl scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
checkincludes.pl
checkkconfigsymbols.py checkkconfigsymbols.py: Remove skipping of help lines in parse_kconfig_file 2021-09-19 10:13:03 +09:00
checkpatch.pl checkpatch: improve Kconfig help test 2022-01-20 08:52:54 +02:00
checkstack.pl scripts/checkstack.pl: fix arm sp regex 2020-05-26 00:03:16 +09:00
checksyscalls.sh checksyscalls: Unconditionally ignore fstat{,at}64 2021-10-07 17:16:28 -07:00
checkversion.pl scripts: checkversion: modernize linux/version.h search strings 2021-08-05 20:55:39 +09:00
cleanfile
cleanpatch
coccicheck scripts: coccicheck: fix troubles on non-English builds 2021-05-18 11:09:59 +02:00
config kconfig: config script: add a little user help 2021-01-04 10:38:11 +09:00
const_structs.checkpatch const_structs.checkpatch: add frequently used ops structs 2022-01-20 08:52:54 +02:00
decode_stacktrace.sh scripts/decode_stacktrace.sh: indicate 'auto' can be used for base path 2021-07-08 11:48:22 -07:00
decodecode scripts/decodecode: fix faulting instruction no print when opps.file is DOS format 2021-11-06 13:30:32 -07:00
depmod.sh depmod: handle the case of /sbin/depmod without /sbin in PATH 2021-01-01 12:26:39 -08:00
dev-needs.sh scripts/dev-needs: Add script to list device dependencies 2020-09-04 18:19:37 +02:00
diffconfig scripts: switch explicitly to Python 3 2021-01-22 06:34:44 +09:00
documentation-file-ref-check scripts: documentation-file-ref-check: fix bpf selftests path 2021-10-26 09:42:29 -06:00
export_report.pl modpost: move the namespace field in Module.symvers last 2020-03-17 08:59:03 +09:00
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
extract_xc3028.pl
faddr2line
file-size.sh
find-unused-docs.sh scripts/find-unused-docs: Fix massive false positives 2020-01-27 14:25:06 -07:00
gcc-goto.sh
gcc-ld
gcc-x86_32-has-stack-protector.sh x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
gcc-x86_64-has-stack-protector.sh
gen_autoksyms.sh kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
gen_ksymdeps.sh kbuild: redo fake deps at include/ksym/*.h 2021-09-03 08:17:21 +09:00
generate_initcall_order.pl init: lto: ensure initcall ordering 2021-01-14 08:21:09 -08:00
get_abi.pl scripts: get_abi.pl: better generate regex from what fields 2021-10-05 16:23:38 +02:00
get_dvb_firmware
get_feat.pl scripts: get_feat.pl: reduce table width for all features output 2020-12-04 14:34:27 -07:00
get_maintainer.pl get_maintainer: don't remind about no git repo when --nogit is used 2022-01-20 08:52:53 +02:00
gfp-translate
headerdep.pl
headers_install.sh Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
insert-sys-cert.c
jobserver-exec scripts/jobserver-exec: Fix a typo ("envirnoment") 2021-05-17 12:10:03 +09:00
kallsyms.c kallsyms: ignore all local labels prefixed by '.L' 2022-02-22 00:44:16 +09:00
kernel-doc This is a relatively unexciting cycle for documentation. 2021-11-02 22:11:39 -07:00
ld-version.sh kbuild: collect minimum tool versions into scripts/min-tool-version.sh 2021-04-25 05:14:26 +09:00
leaking_addresses.pl leaking_addresses: Always print a trailing newline 2021-10-15 11:25:13 +02:00
link-vmlinux.sh Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
makelst
markup_oops.pl
min-tool-version.sh Documentation: Raise the minimum supported version of LLVM to 11.0.0 2021-12-02 17:24:32 +09:00
mkcompile_h kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set 2021-06-17 10:01:12 +09:00
mksysmap mksysmap: Fix the mismatch of '.L' symbols in System.map 2020-06-06 23:39:20 +09:00
mkuboot.sh
module.lds.S module: combine constructors in module linker script 2021-07-19 14:51:40 +02:00
modules-check.sh kbuild: check module name conflict for external modules as well 2021-04-25 05:22:42 +09:00
nsdeps kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
objdiff
pahole-flags.sh Core: 2021-11-02 06:20:58 -07:00
parse-maintainers.pl parse-maintainers: Do not sort section content by default 2020-03-26 15:08:27 -07:00
patch-kernel
profile2linkerlist.pl
prune-kernel
recordmcount.c ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-03-02 17:27:18 -05:00
recordmcount.h recordmcount: Correct st_shndx handling 2021-06-18 09:09:17 -04:00
recordmcount.pl recordmcount.pl: fix typo in s390 mcount regex 2021-12-24 10:20:12 +01:00
remove-stale-files Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
setlocalversion kbuild: do not quote string values in include/config/auto.conf 2022-01-08 18:03:57 +09:00
show_delta tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
sign-file.c
sorttable.c RISC-V Patches for the 5.17 Merge Window, Part 1 2022-01-19 11:38:21 +02:00
sorttable.h script/sorttable: Fix some initialization problems 2022-01-18 10:17:18 -05:00
spdxcheck-test.sh scripts/spdxcheck-test.sh: Drop python2 2021-07-21 15:59:32 +02:00
spdxcheck.py scripts/spdxcheck.py: Strictly read license files in utf-8 2021-07-12 09:56:50 -06:00
spelling.txt scripts/spelling.txt: add "oveflow" 2022-01-15 16:30:24 +02:00
sphinx-pre-install scripts: sphinx-pre-install: Fix ctex support on Debian 2022-01-07 09:33:13 -07:00
split-man.pl tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
stackdelta
stackusage
subarch.include parisc: Fix compile failure when building 64-bit kernel natively 2021-09-01 21:52:02 +02:00
syscallhdr.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
syscallnr.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
syscalltbl.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
tags.sh scripts/tags: add space regexs to all regex_c 2021-11-26 16:58:55 +01:00
test_fortify.sh fortify: Add compile-time FORTIFY_SOURCE tests 2021-10-18 12:28:52 -07:00
tools-support-relr.sh Makefile: fix GDB warning with CONFIG_RELR 2021-06-08 13:09:34 +01:00
unifdef.c
ver_linux Removed the oprofiled version option 2021-05-03 17:23:06 -06:00
xen-hypercalls.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
xz_wrap.sh kbuild: add variables for compression tools 2020-06-06 23:42:01 +09:00