The patch titled
Subject: scripts/decode_stacktrace.sh: add '-h' flag
has been added to the -mm mm-nonmm-unstable branch. Its filename is
scripts-decode_stacktracesh-add-h-flag.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/scripts-decode_stacktracesh-add-h-flag.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
Subject: scripts/decode_stacktrace.sh: add '-h' flag
Date: Fri, 23 Aug 2024 10:27:44 +0200
When no parameters are passed, the usage instructions are presented only
when debuginfod-find is not found. This makes sense because with
debuginfod none of the positional parameters are needed. However it means
that users having debuginfod-find installed will have no chance of reading
the usage text without opening the file.
Many programs have a '-h' flag to get the usage, so add such a flag.
Invoking 'scripts/decode_stacktrace.sh -h' will now show the usage text
and exit.
Link: https://lkml.kernel.org/r/20240823-decode_stacktrace-find_module-improvements-v2-3-d7a57d35558b@xxxxxxxxxxx
Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Cc: Alexis Lothoré (eBPF Foundation) <alexis.lothore@xxxxxxxxxxx>
Cc: Konstantin Khlebnikov <koct9i@xxxxxxxxx>
Cc: Sasha Levin <sashal@xxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/decode_stacktrace.sh | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/scripts/decode_stacktrace.sh~scripts-decode_stacktracesh-add-h-flag
+++ a/scripts/decode_stacktrace.sh
@@ -7,6 +7,7 @@ usage() {
echo "Usage:"
echo " $0 -r <release>"
echo " $0 [<vmlinux> [<base_path>|auto [<modules_path>]]]"
+ echo " $0 -h"
}
# Try to find a Rust demangler
@@ -33,7 +34,10 @@ READELF=${UTIL_PREFIX}readelf${UTIL_SUFF
ADDR2LINE=${UTIL_PREFIX}addr2line${UTIL_SUFFIX}
NM=${UTIL_PREFIX}nm${UTIL_SUFFIX}
-if [[ $1 == "-r" ]] ; then
+if [[ $1 == "-h" ]] ; then
+ usage
+ exit 0
+elif [[ $1 == "-r" ]] ; then
vmlinux=""
basepath="auto"
modpath=""
_
Patches currently in -mm which might be from luca.ceresoli@xxxxxxxxxxx are
scripts-decode_stacktracesh-remove-find_module-recursion-and-improve-error-reporting.patch
scripts-decode_stacktracesh-clarify-command-line.patch
scripts-decode_stacktracesh-add-h-flag.patch
