scripts/decode_stacktrace: strip basepath from all paths

[ Upstream commit d178770d8d21489abf5bafefcbb6d5243b482e9a ]

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")
Co-developed-by: Shik Chen <[email protected]>
Signed-off-by: Pi-Hsun Shih <[email protected]>
Signed-off-by: Shik Chen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Cc: Sasha Levin <[email protected]>
Cc: Nicolas Boichat <[email protected]>
Cc: Jiri Slaby <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: peter50216

Diff for: scripts/decode_stacktrace.sh

@@ -77,8 +77,8 @@ 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'/' '}