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scripts/mksysmap: Fix badly escaped '$' 

The backslash characters escaping '$' in the command to sed (intended to
prevent it from interpreting '$' as "end-of-line") are currently being
consumed by the Shell (where they mean that sh should not evaluate what
follows '$' as a variable name). This means that

    sed -e "/ \$/d"

executes the script

    / $/d

instead of the intended

    / \$/d

So escape twice in mksysmap any '$' that actually needs to reach sed
escaped so that the backslash survives the Shell.

Fixes: c4802044a0 ("scripts/mksysmap: use sed with in-line comments")
Fixes: 320e7c9d44 ("scripts/kallsyms: move compiler-generated symbol patterns to mksysmap")
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Pierre-Clément Tosi 2023-06-06 17:35:53 +00:00 committed by Masahiro Yamada
parent 20ff36856f
commit ec336aa831
1 changed files with 2 additions and 2 deletions
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scripts/mksysmap
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@ -32,7 +32,7 @@ ${NM} -n ${1} | sed >${2} -e "
# (do not forget a space before each pattern)
# local symbols for ARM, MIPS, etc.
/ \$/d
/ \\$/d
# local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc.
/ \.L/d
@ -41,7 +41,7 @@ ${NM} -n ${1} | sed >${2} -e "
/ __efistub_/d
# arm64 local symbols in non-VHE KVM namespace
/ __kvm_nvhe_\$/d
/ __kvm_nvhe_\\$/d
/ __kvm_nvhe_\.L/d
# arm64 lld