From: Marc Zyngier <marc.zyng...@arm.com>

[ Upstream commit 67a28de47faa83585dd644bd4c31e5a1d9346c50 ]

Running something like:

        decodecode vmlinux .

leads to interested results where not only the leading "." gets stripped
from the displayed paths, but also anywhere in the string, displaying
something like:

        kvm_vcpu_check_block (arch/arm64/kvm/virt/kvm/kvm_mainc:2141)

which doesn't help further processing.

Fix it by only stripping the base path if it is a prefix of the path.

Link: http://lkml.kernel.org/r/20181210174659.31054-3-marc.zyng...@arm.com
Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
Cc: Will Deacon <will.dea...@arm.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 scripts/decode_stacktrace.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 515c4c00e957..aa4b57abd1b5 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -61,7 +61,7 @@ parse_symbol() {
        fi
 
        # Strip out the base of the path
-       code=${code//$basepath/""}
+       code=${code//^$basepath/""}
 
        # In the case of inlines, move everything to same line
        code=${code//$'\n'/' '}
-- 
2.19.1

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