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The "layout" feature will add metadata about BTF kinds to the generated BTF; its absence in pahole will not trigger an error so it is safe to add unconditionally as it will simply be ignored if pahole does not support it. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260326145444.2076244-10-alan.maguire@oracle.com
35 lines
1.1 KiB
Makefile
35 lines
1.1 KiB
Makefile
# 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, $(pahole-ver), 130) += --btf_features=attributes
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pahole-flags-$(call test-ge, $(pahole-ver), 131) += --btf_features=layout
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endif
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pahole-flags-$(CONFIG_PAHOLE_HAS_LANG_EXCLUDE) += --lang_exclude=rust
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export PAHOLE_FLAGS := $(pahole-flags-y)
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resolve-btfids-flags-y :=
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resolve-btfids-flags-$(CONFIG_WERROR) += --fatal_warnings
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resolve-btfids-flags-$(if $(KBUILD_EXTMOD),y) += --distill_base
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resolve-btfids-flags-$(if $(KBUILD_VERBOSE),y) += --verbose
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export RESOLVE_BTFIDS_FLAGS := $(resolve-btfids-flags-y)
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