From: Xiong Nandi <xndchn@gmail.com>
Date: Fri, 24 May 2024 04:26:00 +0000 (+0800)
Subject: scripts/decode_stacktrace.sh: better support to ARM32 module stack trace
X-Git-Tag: v6.11-rc1~84^2~75
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=78efbfb5b7675b88d987fda108df0a2f3e07e722;p=thirdparty%2Fkernel%2Flinux.git

scripts/decode_stacktrace.sh: better support to ARM32 module stack trace

Sometimes there are special characters around module names in stack
traces, such as ARM32 with BACKTRACE_VERBOSE in "(%pS)" format, such as:
[<806e4845>] (dump_stack_lvl) from [<7f806013>] (hello_init+0x13/0x1000
[test])

In this case, $module will be "[test])", the trace can be decoded by
stripping the right parenthesis first: (dump_stack_lvl) from hello_init
(/foo/test.c:10) test.

Link: https://lkml.kernel.org/r/20240524042600.14738-3-xndchn@gmail.com
Signed-off-by: Xiong Nandi <xndchn@gmail.com>
Suggested-by: Elliot Berman <quic_eberman@quicinc.com>
Cc: Bjorn Andersson <quic_bjorande@quicinc.com>
Cc: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 2bc3a54ffba5c..a0f50a5b4f7c4 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -283,6 +283,9 @@ handle_line() {
 
 	if [[ ${words[$last]} =~ \[([^]]+)\] ]]; then
 		module=${words[$last]}
+		# some traces format is "(%pS)", which like "(foo+0x0/0x1 [bar])"
+		# so $module may like "[bar])". Strip the right parenthesis firstly
+		module=${module%\)}
 		module=${module#\[}
 		module=${module%\]}
 		modbuildid=${module#* }