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Ilya Leoshkevich 13148392de 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>
2020-04-07 12:40:58 +02:00
..
basic A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
coccinelle fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock 2020-04-06 18:47:45 +02:00
dtbtool_exynos Introduce Exynos dtbtool to the Linux build system 2020-03-27 22:20:07 +05:30
dtc A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fmp A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gdb scripts/gdb: fix debugging modules compiled with hot/cold partitioning 2020-04-07 12:40:58 +02:00
genksyms A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kconfig kconfig/[mn]conf: handle backspace (^H) key 2020-04-06 16:41:44 +02:00
ksymoops A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mod modpost: file2alias: check prototype of handler 2020-04-06 15:49:11 +02:00
package A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
selinux A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracing A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
analyze_suspend.py A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
android-major-version.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
android-version.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
asn1_compiler.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
bloat-o-meter A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
bootgraph.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
check_extable.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
check-lc_ctype.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
checkincludes.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
checkkconfigsymbols.py A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
checkpatch.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
checkstack.pl scripts/checkstack.pl: Fix arm64 wrong or unknown architecture 2020-04-06 19:16:34 +02:00
checksyscalls.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
checkversion.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
clang-android.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
cleanfile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
cleanpatch A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
coccicheck A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
config A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
conmakehash.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
decode_stacktrace.sh scripts/decode_stacktrace: match basepath using shell prefix operator, not regex 2020-04-06 21:34:57 +02:00
decodecode A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
depmod.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
diffconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
docproc.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
export_report.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
extract-cert.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
extract-ikconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
extract-module-sig.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
extract-sys-certs.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
extract-vmlinux A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
find_matching_major.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
find_matching_version.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fips_fmp_hmac.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fips_fmp_utils.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fips_kaslr_fmp_hmac.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gcc-goto.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gcc-ld A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gcc-version.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gcc-x86_32-has-stack-protector.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gcc-x86_64-has-stack-protector.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gen_initramfs_list.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
get_dvb_firmware A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
get_maintainer.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gfp-translate A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
headerdep.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
headers_check.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
headers_install.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
headers.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kallsyms.c kallsyms: exclude kasan local symbols on s390 2020-04-06 20:06:26 +02:00
kaslr_fips_fmp.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kaslr_patch.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Kbuild.include kbuild: simplify ld-option implementation 2020-04-06 16:38:00 +02:00
kernel-doc A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kernel-doc-xml-ref A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
ld-version.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Lindent A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
link-vmlinux.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile Introduce Exynos dtbtool to the Linux build system 2020-03-27 22:20:07 +05:30
Makefile.asm-generic A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.build A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.clean A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.dtbinst A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.extrawarn A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.fwinst A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.headersinst A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.help A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.host A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.kasan A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.lib Introduce Exynos dtbtool to the Linux build system 2020-03-27 22:20:07 +05:30
Makefile.modbuiltin A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.modinst A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile.modpost kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules 2020-04-06 20:49:10 +02:00
Makefile.modsign A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
makelst A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
markup_oops.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mkcompile_h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mkmakefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mksysmap A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mkuboot.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mkversion A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
module-common.lds A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
namespace.pl namespace: fix namespace.pl script to support relative paths 2020-04-07 09:24:14 +02:00
objdiff A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
patch-kernel A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
pnmtologo.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
profile2linkerlist.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
recordmcount.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
recordmcount.h recordmcount: Fix spurious mcount entries on powerpc 2020-04-06 20:06:14 +02:00
recordmcount.pl A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
replace_dir.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
setlocalversion scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks 2020-04-07 09:27:28 +02:00
show_delta A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sign-file.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sortextable.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sortextable.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
spelling.txt A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
stackdelta A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
stackusage A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tags.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
unifdef.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
ver_linux A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
xen-hypercalls.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
xz_wrap.sh A750FXXU4CTBC 2020-03-27 21:51:54 +05:30