kbuild: Add CONFIG_PAHOLE_VERSION
commit 613fe16923
upstream.
There are a few different places where pahole's version is turned into a
three digit form with the exact same command. Move this command into
scripts/pahole-version.sh to reduce the amount of duplication across the
tree.
Create CONFIG_PAHOLE_VERSION so the version code can be used in Kconfig
to enable and disable configuration options based on the pahole version,
which is already done in a couple of places.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220201205624.652313-3-nathan@kernel.org
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Родитель
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Коммит
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@ -3407,6 +3407,7 @@ F: net/sched/act_bpf.c
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F: net/sched/cls_bpf.c
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F: samples/bpf/
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F: scripts/bpf_doc.py
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F: scripts/pahole-version.sh
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F: tools/bpf/
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F: tools/lib/bpf/
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F: tools/testing/selftests/bpf/
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@ -91,6 +91,10 @@ config CC_HAS_ASM_INLINE
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config CC_HAS_NO_PROFILE_FN_ATTR
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def_bool $(success,echo '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror)
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config PAHOLE_VERSION
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int
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default $(shell,$(srctree)/scripts/pahole-version.sh $(PAHOLE))
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config CONSTRUCTORS
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bool
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@ -0,0 +1,13 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Usage: $ ./pahole-version.sh pahole
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#
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# Prints pahole's version in a 3-digit form, such as 119 for v1.19.
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if [ ! -x "$(command -v "$@")" ]; then
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echo 0
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exit 1
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fi
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"$@" --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/'
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