From: Gabriele Monaco <gmonaco@redhat.com>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
bpf@vger.kernel.org
Cc: Gabriele Monaco <gmonaco@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Nam Cao <namcao@linutronix.de>, Wen Yang <wen.yang@linux.dev>,
Tobias Schaffner <tobias.schaffner@siemens.com>,
Viktor Malik <vmalik@redhat.com>
Subject: [PATCH v2 06/15] tools/build: Add a feature test for bpftool-btf
Date: Thu, 1 Oct 2026 17:20:33 +0200 [thread overview]
Message-ID: <20261001152042.124445-7-gmonaco@redhat.com> (raw)
In-Reply-To: <20261001152042.124445-1-gmonaco@redhat.com>
RV can run bpf monitors and also build them, only the latter requires
the vmlinux.h from bpftool btf.
Add a feature so that RV can be built with BPF support without having to
build in-tree BPF monitors if not supported on the system.
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
tools/build/Makefile.feature | 1 +
tools/build/feature/Makefile | 7 ++++++-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 99eb0ea09537..18e3a7ae893a 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -129,6 +129,7 @@ FEATURE_TESTS_EXTRA := \
libdebuginfod \
clang-bpf-co-re \
bpftool-skeletons \
+ bpftool-btf \
libunwind \
libunwind-debug-frame \
$(foreach arch,$(LIBUNWIND_ARCHS),libunwind-$(arch) libunwind-debug-frame-$(arch))
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 7d165018116a..2f01203dda5c 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -71,7 +71,8 @@ FILES= \
test-libpfm4.bin \
test-rust.bin \
test-libopenssl.bin \
- test-bpftool-skeletons.bin
+ test-bpftool-skeletons.bin \
+ test-bpftool-btf.bin
FILES := $(addprefix $(OUTPUT),$(FILES))
@@ -383,6 +384,10 @@ $(OUTPUT)test-bpftool-skeletons.bin:
{ $(SYSTEM_BPFTOOL) version | grep '^features:.*skeletons'; } \
> $(@:.bin=.make.output) 2>&1 && touch $@
+$(OUTPUT)test-bpftool-btf.bin:
+ $(SYSTEM_BPFTOOL) btf help \
+ > $(@:.bin=.make.output) 2>&1 && touch $@
+
# Testing Rust is special: we don't compile anything, it's enough to check the
# compiler presence. Compiling a test code for this purposes is problematic,
# because Rust will emit a dependency file without any external references,
--
2.55.0
next prev parent reply other threads:[~2026-10-01 15:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 15:20 [PATCH v2 00/15] rv: Add support for BPF monitors Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 01/15] sched: Add task enqueue/dequeue trace points Gabriele Monaco
2026-10-01 15:49 ` Peter Zijlstra
2026-10-02 7:09 ` Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 02/15] tools/rv: Skip empty pid error in selftest if command failed Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 03/15] rv: Refactor da_trace() functions to get strings internally Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 04/15] rv: Cast result of model_get_*_name() Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 05/15] tools/rv: Move argument parsing from in_kernel to utils Gabriele Monaco
2026-10-02 0:25 ` bot+bpf-ci
2026-10-01 15:20 ` Gabriele Monaco [this message]
2026-10-01 15:20 ` [PATCH v2 07/15] tools/rv: Implement BPF monitor discovery and listing Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 08/15] tools/rv: Implement BPF monitor loading and tracing Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 09/15] tools/rv: Copy stripped bpf_atomic.h from libarena Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 10/15] tools/rv: Add BPF monitors Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 11/15] tools/rv: Define CONFIG_X86_64 statically for " Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 12/15] tools/rv: Add reactors support to " Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 13/15] verification/rvgen: Add support for " Gabriele Monaco
2026-10-02 0:25 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 14/15] tools/rv: Add selftest for rv bpf monitors Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 15/15] verification/rvgen: Add selftest for rvgen -b Gabriele Monaco
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