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Subsequent patches in the series change vmlinux linking scripts to unconditionally pass --btf_encode_detached to pahole, which was introduced in v1.22 [1][2]. This change allows to remove PAHOLE_HAS_SPLIT_BTF Kconfig option and other checks of older pahole versions. [1] https://github.com/acmel/dwarves/releases/tag/v1.22 [2] https://lore.kernel.org/bpf/cbafbf4e-9073-4383-8ee6-1353f9e5869c@oracle.com/ Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Nicolas Schier <nsc@kernel.org> Link: https://lore.kernel.org/bpf/20251219181825.1289460-1-ihor.solodrai@linux.dev
30 lines
995 B
Text
30 lines
995 B
Text
# SPDX-License-Identifier: GPL-2.0
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pahole-ver := $(CONFIG_PAHOLE_VERSION)
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pahole-flags-y :=
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JOBS := $(patsubst -j%,%,$(filter -j%,$(MAKEFLAGS)))
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ifeq ($(call test-le, $(pahole-ver), 125),y)
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pahole-flags-y += --btf_gen_floats -j$(JOBS)
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pahole-flags-$(call test-ge, $(pahole-ver), 125) += --skip_encoding_btf_inconsistent_proto --btf_gen_optimized
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else
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# Switch to using --btf_features for v1.26 and later.
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pahole-flags-$(call test-ge, $(pahole-ver), 126) = -j$(JOBS) --btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs
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pahole-flags-$(call test-ge, $(pahole-ver), 130) += --btf_features=attributes
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ifneq ($(KBUILD_EXTMOD),)
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module-pahole-flags-$(call test-ge, $(pahole-ver), 128) += --btf_features=distilled_base
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endif
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endif
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pahole-flags-$(CONFIG_PAHOLE_HAS_LANG_EXCLUDE) += --lang_exclude=rust
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export PAHOLE_FLAGS := $(pahole-flags-y)
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export MODULE_PAHOLE_FLAGS := $(module-pahole-flags-y)
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