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perf: make bpf asm include arch conditional

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To keep the perf source copying as small as possible, we can
further refine the arch/uapi copy to the single file that we
currently need.

To avoid a warning from the general perf source copy routine,
we make the .h conditional based on the architecture.

The supported architectures will not change often, so updating
this arch list is very minimal effort. Alternatively, we could
add a PERF_OPTIONAL_SRC variable and not warn if a file isn't
available for a given architecture.

(From OE-Core rev: 879b4a7d378b4d4d11fdda7921b8c47e4523a948)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bruce Ashfield 2024-04-05 09:15:16 -04:00 committed by Richard Purdie
parent 82a61e246b
commit 532a10b1c5
1 changed files with 5 additions and 2 deletions
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7
meta/recipes-kernel/perf/perf.bb
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@ -129,7 +129,10 @@ EXTRA_OEMAKE += "\
# honour a JOBS variable.
EXTRA_OEMAKE:append:task-configure = " JOBS=1"
# include/uapi/asm is for: include/uapi/asm/bpf_perf_event.h
# the architectures that need this file can be found in
# tools/include/uapi/asm/bpf_perf_event.h
# We are only listing supported arches at the moment
PERF_BPF_EVENT_SRC ?= '${@bb.utils.contains_any("ARCH", [ "riscv", "arm64" ], "arch/${ARCH}/include/uapi/asm/bpf_perf_event.h", "", d)}'
PERF_SRC ?= "Makefile \
tools/arch \
tools/build \
@ -140,7 +143,7 @@ PERF_SRC ?= "Makefile \
tools/scripts \
scripts/ \
arch/arm64/tools \
arch/${ARCH}/include/uapi/asm/ \
${PERF_BPF_EVENT_SRC} \
arch/${ARCH}/Makefile \
"