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    Subject[PATCH 4.14 147/205] scripts/decode_stacktrace: only strip base path when a prefix of the path
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    [ 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.zyngier@arm.com
    Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
    Cc: Will Deacon <will.deacon@arm.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Sasha Levin <sashal@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 64220e36ce3b..98a7d63a723e 100755
    --- a/scripts/decode_stacktrace.sh
    +++ b/scripts/decode_stacktrace.sh
    @@ -78,7 +78,7 @@ 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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