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[v2] perf: disable BUILD_BPF_SKEL when rust in kernel feature is enabled

Message ID 20260519152512.662193-1-Harish.Sadineni@windriver.com
State New
Headers show
Series [v2] perf: disable BUILD_BPF_SKEL when rust in kernel feature is enabled | expand

Commit Message

Sadineni, Harish May 19, 2026, 3:25 p.m. UTC 
From: Harish Sadineni <Harish.Sadineni@windriver.com>

Enabling the Rust in-kernel feature pulls in clang-native as a
dependency for the kernel build. During the perf build, the presence of clang
causes all BUILD_BPF_SKEL dependency checks to succeed, which makes perf attempt
to build bpftool as part of its build process and make build to fail.

Previously, When Rust support was not enabled, BUILD_BPF_SKEL is set 0 due to missing
clang dependency.

Error:
| make[3]: *** ../bpf/bpftool: No such file or directory.  Stop.

As a workaround currently disabling BUILD_BPF_SKEL to make perf to build.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 meta/recipes-kernel/perf/perf.bb | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb
index c3ef25fd99..6e4d395828 100644
--- a/meta/recipes-kernel/perf/perf.bb
+++ b/meta/recipes-kernel/perf/perf.bb
@@ -438,3 +438,9 @@  perf_fix_sources () {
 		fi
 	done
 }
+
+# Disable BUILD_BPF_SKEL when the Rust kernel feature is enabled.
+# Rust in kernel support pulls in clang-native, which satisfies the
+# BUILD_BPF_SKEL dependency checks and causes perf to attempt
+# building bpftool, resulting in a build failure.
+EXTRA_OEMAKE += "${@bb.utils.contains('KERNEL_FEATURES', 'rust', 'BUILD_BPF_SKEL=0', '', d)}"