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Antonio Borneo 45382d6907 scripts/gdb: fix 'lx-dmesg' on 32 bits arch 
[ Upstream commit e3c8d33e0d ]

The type atomic_long_t can have size 4 or 8 bytes, depending on
CONFIG_64BIT; it's only content, the field 'counter', is either an
int or a s64 value.

Current code incorrectly uses the fixed size utils.read_u64() to
read the field 'counter' inside atomic_long_t.

On 32 bits architectures reading the last element 'tail_id' of the
struct prb_desc_ring:
	struct prb_desc_ring {
		...
		atomic_long_t tail_id;
	};
causes the utils.read_u64() to access outside the boundary of the
struct and the gdb command 'lx-dmesg' exits with error:
	Python Exception <class 'IndexError'>: index out of range
	Error occurred in Python: index out of range

Query the really used atomic_long_t counter type size.

Link: https://lore.kernel.org/r/20220617143758.137307-1-antonio.borneo@foss.st.com
Fixes: e60768311a ("scripts/gdb: update for lockless printk ringbuffer")
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
[pmladek@suse.com: Query the really used atomic_long_t counter type size]
Tested-by: Antonio Borneo <antonio.borneo@foss.st.com>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220719122831.19890-1-pmladek@suse.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 14:23:56 +02:00
..
atomic
atomics: Fix atomic64_{read_acquire,set_release} fallbacks
2022-04-08 14:23:57 +02:00
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
scripts: coccinelle: allow list_entry_is_head() to use pos
2021-08-08 22:00:49 +02:00
dtc
scripts/dtc: Call pkg-config POSIXly correct
2022-04-08 14:23:29 +02:00
dummy-tools
kbuild: dummy-tools: adjust to stricter stackprotector check
2021-05-17 12:10:03 +09:00
gcc-plugins
gcc-plugins: latent_entropy: use /dev/urandom
2022-04-20 09:34:18 +02:00
gdb
scripts/gdb: fix 'lx-dmesg' on 32 bits arch
2022-08-17 14:23:56 +02:00
genksyms
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
kconfig
kconfig: fix failing to generate auto.conf
2022-02-23 12:03:20 +01:00
ksymoops
Fix dead URLs to ftp.kernel.org
2017-03-28 16:16:52 +02:00
mod
modpost: fix section mismatch check for exported init/exit sections
2022-06-29 09:03:31 +02:00
package
kbuild: buildtar: add riscv support
2021-03-29 23:13:30 -07:00
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
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36
2019-05-24 17:27:11 +02:00
bin2c.c
kbuild: move bin2c back to scripts/ from scripts/basic/
2018-07-18 01:18:05 +09:00
bloat-o-meter
scripts: switch explicitly to Python 3
2021-01-22 06:34:44 +09:00
bootgraph.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391
2019-06-05 17:37:11 +02:00
bpf_doc.py
bpf: Introduce bpf timers.
2021-07-15 22:31:10 +02:00
cc-can-link.sh
bpfilter: check compiler capability in Kconfig
2018-06-28 13:36:39 +09:00
cc-version.sh
kbuild: collect minimum tool versions into scripts/min-tool-version.sh
2021-04-25 05:14:26 +09:00
check_extable.sh
scripts: check_extable: fix typo in user error message
2021-09-08 11:50:28 -07:00
check-sysctl-docs
docs: add a script to check sysctl docs
2020-02-25 03:35:16 -07:00
checkdeclares.pl
scripts: make some scripts executable
2021-08-10 09:13:25 +09:00
checkincludes.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
checkkconfigsymbols.py
checkkconfigsymbols.py: Remove skipping of help lines in parse_kconfig_file
2021-09-19 10:13:03 +09:00
checkpatch.pl
Compiler Attributes: add __alloc_size() for better bounds checking
2022-07-12 16:35:01 +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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cleanpatch
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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 pinctrl_ops and pinmux_ops
2020-10-16 11:11:21 -07:00
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: add the capability to supply the program counter
2020-10-13 18:38:26 -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
documentation-file-ref-check: Make git check work for multiple working directories
2021-06-04 11:20:52 -06:00
export_report.pl
modpost: move the namespace field in Module.symvers last
2020-03-17 08:59:03 +09:00
extract_xc3028.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 339
2019-06-05 17:37:07 +02:00
extract-cert.c
extract-cert: add static to local data
2020-08-18 20:16:46 +09:00
extract-ikconfig
…
extract-module-sig.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extract-sys-certs.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extract-vmlinux
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378
2019-06-05 17:37:10 +02:00
faddr2line
faddr2line: Fix overlapping text section failures, the sequel
2022-06-22 14:22:02 +02:00
file-size.sh
kbuild: Use ls(1) instead of stat(1) to obtain file size
2018-03-26 02:01:24 +09:00
find-unused-docs.sh
scripts/find-unused-docs: Fix massive false positives
2020-01-27 14:25:06 -07:00
gcc-goto.sh
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
gcc-ld
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y
2018-06-25 23:21:13 +09:00
gen_autoksyms.sh
kbuild: Fix TRIM_UNUSED_KSYMS with LTO_CLANG
2021-09-03 08:12:39 +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: ignore code blocks for cross-references
2021-03-31 13:53:16 -06:00
get_dvb_firmware
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
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: exclude MAINTAINERS file(s) from --git-fallback
2020-10-16 11:11:19 -07:00
gfp-translate
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
headerdep.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
headers_check.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: fix nonconverging kallsyms table with lld
2021-02-05 17:53:28 +09:00
Kbuild.include
kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and filechk
2021-09-03 08:17:19 +09:00
Kconfig.include
kbuild: check the minimum assembler version in Kconfig
2021-04-25 05:14:41 +09:00
kernel-doc
stddef: Introduce DECLARE_FLEX_ARRAY() helper
2022-07-12 16:35:03 +02:00
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
2021-11-18 19:16:16 +01:00
Lindent
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
link-vmlinux.sh
x86/retbleed: Add fine grained Kconfig knobs
2022-07-23 12:54:10 +02:00
Makefile
Merge tag 'keys-cve-2020-26541-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2021-04-26 08:38:10 -07:00
Makefile.asm-generic
kbuild: prefix $(srctree)/ to some included Makefiles
2021-03-15 19:20:48 +09:00
Makefile.build
x86/retbleed: Add fine grained Kconfig knobs
2022-07-23 12:54:10 +02:00
Makefile.clang
kbuild: Add -Werror=ignored-optimization-argument to CLANG_FLAGS
2021-09-19 10:55:18 +09:00
Makefile.clean
kbuild: prefix $(srctree)/ to some included Makefiles
2021-03-15 19:20:48 +09:00
Makefile.compiler
kbuild: remove TMPO from try-run
2021-04-25 05:25:56 +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
2022-02-16 12:56:39 +01:00
Makefile.gcc-plugins
gcc-plugins/structleak: add makefile var for disabling structleak
2021-10-06 17:53:29 -06:00
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
Merge tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2020-10-22 13:13:57 -07:00
Makefile.lib
kbuild: move objtool_args back to scripts/Makefile.build
2022-05-15 20:18:50 +02:00
Makefile.modfinal
kbuild: Fix TRIM_UNUSED_KSYMS with LTO_CLANG
2021-09-03 08:12:39 +09:00
Makefile.modinst
kbuild: add support for zstd compressed modules
2021-04-25 05:25:06 +09:00
Makefile.modpost
kbuild: Fix comment typo in scripts/Makefile.modpost
2021-09-19 10:14:19 +09:00
Makefile.package
kbuild: deb-pkg: change the source package name to linux-upstream
2021-04-25 05:30:45 +09:00
Makefile.ubsan
ubsan: remove CONFIG_UBSAN_OBJECT_SIZE
2022-04-13 20:59:27 +02:00
Makefile.userprogs
kbuild: add infrastructure to build userspace programs
2020-05-17 18:52:01 +09:00
makelst
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
markup_oops.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 373
2019-06-05 17:37:10 +02:00
min-tool-version.sh
Documentation: raise minimum supported version of GCC to 5.1
2021-09-13 10:18:28 -07:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 199
2019-05-30 11:29:23 -07:00
parse-maintainers.pl
parse-maintainers: Do not sort section content by default
2020-03-26 15:08:27 -07:00
patch-kernel
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
profile2linkerlist.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
prune-kernel
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
2022-01-05 12:42:33 +01:00
remove-stale-files
kbuild: add a script to remove stale generated files
2021-05-02 00:43:35 +09:00
setlocalversion
scripts/setlocalversion: fix a bug when LOCALVERSION is empty
2021-07-18 23:48:14 +09:00
show_delta
tweewide: Fix most Shebang lines
2020-12-08 23:30:04 +09:00
sign-file.c
sign-file: fix build error in sign-file.c with libressl
2017-02-10 12:43:47 +11:00
sorttable.c
x86/extable: Rework the exception table mechanics
2022-07-29 17:25:25 +02:00
sorttable.h
scripts/sorttable: Implement build-time ORC unwind table sorting
2019-12-13 10:47:58 +01:00
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 more spellings to spelling.txt
2021-06-29 10:53:45 -07:00
sphinx-pre-install
scripts: sphinx-pre-install: Fix ctex support on Debian
2022-01-27 11:05:44 +01:00
split-man.pl
tweewide: Fix most Shebang lines
2020-12-08 23:30:04 +09:00
stackdelta
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
stackusage
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
kbuild: replace LANG=C with LC_ALL=C
2021-05-02 00:43:35 +09:00
tools-support-relr.sh
Makefile: fix GDB warning with CONFIG_RELR
2021-06-08 13:09:34 +01:00
unifdef.c
unifdef: use memcpy instead of strncpy
2018-11-30 14:45:01 -08:00
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