Re: [PATCH v1] perf build: Add system include paths to BPF builds

From: Arnaldo Carvalho de Melo
Date: Wed May 10 2023 - 13:35:07 EST

Em Fri, May 05, 2023 at 07:14:50PM -0700, Ian Rogers escreveu:
> There are insufficient headers in tools/include to satisfy building
> BPF programs and their header dependencies. Add the system include
> paths from the non-BPF clang compile so that these headers can be
> found.
> This code was taken from:
> tools/testing/selftests/bpf/Makefile
> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> ---
> tools/perf/Makefile.perf | 20 +++++++++++++++++++-
> 1 file changed, 19 insertions(+), 1 deletion(-)
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 61c33d100b2b..37befdfa8ac8 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> ifndef NO_BPF_SKEL

So this patch was done before the reverts, I adjusted it to what is
upstream and to another patch that makes the build use the headers from
the perf sources instead of the system's (linux/bpf.h and
linux/perf_event.h, from vmlinux.h), please take a look at the patch
below, I'm also trying to figure out that other problem you pointed with
linux/types.s :-\

What I have now in tmp.perf-tools:

⬢[acme@toolbox perf-tools]$ git log --oneline torvalds/master..
a2af0f6b8ef7ea40 (HEAD -> perf-tools) perf build: Add system include paths to BPF builds
5be6cecda0802f23 perf bpf skels: Make vmlinux.h use bpf.h and perf_event.h in source directory
7d161165d9072dcb perf parse-events: Do not break up AUX event group
a468085011ea8bba perf test Test sample mode with event with PMU name
123361659fa405de perf evsel: Modify group pmu name for software events
34e82891d995ab89 tools arch x86: Sync the msr-index.h copy with the kernel sources
705049ca4f5b7b00 tools headers kvm: Sync uapi/{asm/linux} kvm.h headers with the kernel sources
8d6a41c8065e1120 tools include UAPI: Sync the sound/asound.h copy with the kernel sources
92b8e61e88351091 tools headers UAPI: Sync the linux/const.h with the kernel headers
e7ec3a249c38a9c9 tools headers UAPI: Sync the i915_drm.h with the kernel sources
e6232180e524e112 tools headers UAPI: Sync the drm/drm.h with the kernel sources
5d1ac59ff7445e51 tools headers UAPI: Sync the linux/in.h with the kernel sources
b0618f38e2ab8ce3 perf build: Gracefully fail the build if BUILD_BPF_SKEL=1 is specified and clang isn't available
5f0b89e632ed81b6 perf test java symbol: Remove needless debuginfod queries
327daf34554d20a6 perf parse-events: Don't reorder ungrouped events by PMU
ccc66c6092802d68 perf metric: JSON flag to not group events if gathering a metric group
1b114824106ca468 perf stat: Introduce skippable evsels
2a939c8695035b11 perf metric: Change divide by zero and !support events behavior
⬢[acme@toolbox perf-tools]$

Please help me test this,


- Arnaldo