Ilya Leoshkevich
bbcf6158ad
scripts/gdb: fix debugging modules compiled with hot/cold partitioning ...
[ Upstream commit 8731acc5068eb3f422a45c760d32198175c756f8 ]
gcc's -freorder-blocks-and-partition option makes it group frequently
and infrequently used code in .text.hot and .text.unlikely sections
respectively. At least when building modules on s390, this option is
used by default.
gdb assumes that all code is located in .text section, and that .text
section is located at module load address. With such modules this is no
longer the case: there is code in .text.hot and .text.unlikely, and
either of them might precede .text.
Fix by explicitly telling gdb the addresses of code sections.
It might be tempting to do this for all sections, not only the ones in
the white list. Unfortunately, gdb appears to have an issue, when
telling it about e.g. loadable .note.gnu.build-id section causes it to
think that non-loadable .note.Linux section is loaded at address 0,
which in turn causes NULL pointers to be resolved to bogus symbols. So
keep using the white list approach for the time being.
Link: http://lkml.kernel.org/r/20191028152734.13065-1-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-05 15:34:10 +01:00
fixdep: faster CONFIG_ search
2016-08-24 22:34:19 +02:00
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-06-11 12:22:49 +02:00
scripts/dtc: dt_to_config - kernel config options for a devicetree
2016-07-22 14:48:16 -05:00
gcc-plugins: Fix build failures under Darwin host
2019-06-11 12:22:43 +02:00
scripts/gdb: fix debugging modules compiled with hot/cold partitioning
2019-12-05 15:34:10 +01:00
kbuild: Regenerate genksyms lexer
2016-08-25 20:03:51 +02:00
kconfig/[mn]conf: handle backspace (^H) key
2019-05-04 08:49:10 +02:00
modpost: file2alias: check prototype of handler
2019-04-27 09:34:41 +02:00
builddeb: Fix header package regarding dtc source links
2018-05-30 07:50:39 +02:00
ftrace/scripts: Add helper script to bisect function tracing problem functions
2016-09-21 13:56:55 -04:00
kbuild: make scripts/adjust_autoksyms.sh robust against timestamp races
2018-05-30 07:50:37 +02:00
PM / tools: scripts: AnalyzeSuspend v4.2
2016-07-15 23:34:14 +02:00
scripts/bloat-o-meter: fix SIGPIPE
2016-11-11 08:12:37 -08:00
checkkconfigsymbols: use arglist instead of cmd string
2016-08-28 11:08:34 +02:00
checkpatch: silence perl 5.26.0 unescaped left brace warnings
2017-07-21 07:42:21 +02:00
scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
2019-07-10 09:55:31 +02:00
coccinelle: fix parallel build with CHECK=scripts/coccicheck
2017-12-14 09:28:22 +01:00
const_structs.checkpatch: add frequently used from Julia Lawall's list
2016-10-11 15:06:30 -07:00
scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
2019-09-16 08:19:33 +02:00
kbuild: make missing $DEPMOD a Warning instead of an Error
2018-09-15 09:43:01 +02:00
docproc: print a comment about autogeneration for rst output
2016-05-14 09:56:56 -06:00
[media] extract_xc3028.pl: move it to scripts/dir
2016-07-17 14:08:12 -03:00
scripts/faddr2line: improve on base path filtering a bit
2016-09-19 14:49:08 -07:00
gcc-plugins: abort builds cleanly when not supported
2016-08-08 17:49:05 -07:00
scripts/has-stack-protector: add -fno-PIE
2016-11-09 22:28:05 +01:00
initramfs: Escape colons in depfile
2016-09-23 10:35:32 +02:00
[media] doc-rst: move DVB avulse docs to Documentation/media
2016-07-17 14:02:45 -03:00
get_maintainer: quiet noisy implicit -f vcs_file_exists checking
2016-08-26 17:39:34 -07:00
headers_check: don't warn about c++ guards
2016-05-24 14:12:48 +10:00
kallsyms: exclude kasan local symbols on s390
2019-08-04 09:33:40 +02:00
kbuild: simplify ld-option implementation
2019-05-02 09:31:59 +02:00
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
2018-02-25 11:05:47 +01:00
ld-version: Drop the 4th and 5th version components
2016-05-13 14:02:05 +02:00
kbuild: allow architectures to use thin archives instead of ld -r
2016-09-09 10:31:19 +02:00
GCC plugin infrastructure
2016-06-07 22:57:10 +02:00
kbuild: Remove stale asm-generic wrappers
2016-07-07 15:58:45 +02:00
kbuild: Add support to generate LLVM assembly files
2018-11-23 08:20:35 +01:00
Shared library support
2016-06-07 22:57:10 +02:00
Kbuild: suppress packed-not-aligned warning for default setting only
2018-12-08 13:05:04 +01:00
gcc-plugins: Add latent_entropy plugin
2016-10-10 14:51:44 -07:00
kbuild: Add __cc-option macro
2018-11-23 08:20:35 +01:00
kasan: don't emit builtin calls when sanitization is off
2018-08-17 20:59:29 +02:00
kbuild: fix asm-offset generation to work with clang
2018-11-23 08:20:35 +01:00
kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules
2019-08-25 10:51:47 +02:00
Kbuild: enable -Wmaybe-uninitialized warning for "make W=1"
2016-11-11 08:45:08 -08:00
objtool, modules: Discard objtool annotation sections for modules
2018-01-17 09:38:58 +01:00
namespace: fix namespace.pl script to support relative paths
2019-10-29 09:15:06 +01:00
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
recordmcount: Fix spurious mcount entries on powerpc
2019-08-04 09:33:38 +02:00
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks
2019-11-06 12:18:03 +01:00
modsign: Make sign-file determine the format of the X.509 cert
2016-06-14 13:18:33 +01:00
spelling.txt: "modeled" is spelt correctly
2016-10-07 18:46:30 -07:00
tags: honor COMPILED_SOURCE with apart output directory
2018-04-13 19:48:21 +02:00
unifdef: use memcpy instead of strncpy
2018-12-08 13:05:05 +01:00
ver_linux: rename ver_linux.awk to ver_linux
2016-08-31 13:59:31 +02:00
bbcf6158ad