linux-kernel - [PATCH] scripts/decode_stacktrace: Strip basepath from all paths.

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Date:   Mon, 20 Jul 2020 08:27:07 +0000
From:   Pi-Hsun Shih <pihsun@...omium.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Pi-Hsun Shih <pihsun@...omium.org>, Shik Chen <shik@...omium.org>,
        Sasha Levin <sashal@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] scripts/decode_stacktrace: Strip basepath from all paths.

Currently the basepath is removed only from the beginning of the string.
When the symbol is inlined and there's multiple line outputs of
addr2line, only the first line would have basepath removed.

Change to remove the basepath prefix from all lines.

Fixes: 31013836a71e ("scripts/decode_stacktrace: match basepath using shell prefix operator, not regex")
Signed-off-by: Pi-Hsun Shih <pihsun@...omium.org>
Co-developed-by: Shik Chen <shik@...omium.org>
Signed-off-by: Shik Chen <shik@...omium.org>
---
 scripts/decode_stacktrace.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 66a6d511b524..0869def435ee 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -87,8 +87,8 @@ parse_symbol() {
 		return
 	fi
 
-	# Strip out the base of the path
-	code=${code#$basepath/}
+	# Strip out the base of the path on each line
+	code=$(while read -r line; do echo "${line#$basepath/}"; done <<< "$code")
 
 	# In the case of inlines, move everything to same line
 	code=${code//$'\n'/' '}

base-commit: 5714ee50bb4375bd586858ad800b1d9772847452
-- 
2.28.0.rc0.105.gf9edc3c819-goog