From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Tomas Glozar <tglozar@redhat.com>, John Kacur <jkacur@redhat.com>
Subject: [for-next][PATCH 1/6] tools/build: Add libcpupower dependency detection
Date: Thu, 17 Oct 2024 17:23:29 -0400 [thread overview]
Message-ID: <20241017212353.995046941@goodmis.org> (raw)
In-Reply-To: 20241017212328.560060762@goodmis.org
From: Tomas Glozar <tglozar@redhat.com>
Add the ability to detect the presence of libcpupower on a system to
the Makefiles in tools/build.
Link: https://lore.kernel.org/20241017140914.3200454-2-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
tools/build/Makefile.feature | 1 +
tools/build/feature/Makefile | 4 ++++
tools/build/feature/test-libcpupower.c | 8 ++++++++
3 files changed, 13 insertions(+)
create mode 100644 tools/build/feature/test-libcpupower.c
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index ffd117135094..2ebfb826dcea 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -53,6 +53,7 @@ FEATURE_TESTS_BASIC := \
libslang-include-subdir \
libtraceevent \
libtracefs \
+ libcpupower \
libcrypto \
libunwind \
pthread-attr-setaffinity-np \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 5938cf799dc6..6ef3e1ca583e 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -38,6 +38,7 @@ FILES= \
test-libslang.bin \
test-libslang-include-subdir.bin \
test-libtraceevent.bin \
+ test-libcpupower.bin \
test-libtracefs.bin \
test-libcrypto.bin \
test-libunwind.bin \
@@ -245,6 +246,9 @@ $(OUTPUT)test-libslang-include-subdir.bin:
$(OUTPUT)test-libtraceevent.bin:
$(BUILD) -ltraceevent
+$(OUTPUT)test-libcpupower.bin:
+ $(BUILD) -lcpupower
+
$(OUTPUT)test-libtracefs.bin:
$(BUILD) $(shell $(PKG_CONFIG) --cflags libtracefs 2>/dev/null) -ltracefs
diff --git a/tools/build/feature/test-libcpupower.c b/tools/build/feature/test-libcpupower.c
new file mode 100644
index 000000000000..a346aa332a71
--- /dev/null
+++ b/tools/build/feature/test-libcpupower.c
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <cpuidle.h>
+
+int main(void)
+{
+ int rv = cpuidle_state_count(0);
+ return rv;
+}
--
2.45.2
next prev parent reply other threads:[~2024-10-17 21:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-17 21:23 [for-next][PATCH 0/6] rtla: Updates for 6.13 Steven Rostedt
2024-10-17 21:23 ` Steven Rostedt [this message]
2024-10-17 21:23 ` [for-next][PATCH 2/6] rtla: Add optional dependency on libcpupower Steven Rostedt
2024-10-17 21:23 ` [for-next][PATCH 3/6] rtla/utils: Add idle state disabling via libcpupower Steven Rostedt
2024-10-17 21:23 ` [for-next][PATCH 4/6] rtla/timerlat: Add --deepest-idle-state for top Steven Rostedt
2024-10-17 21:23 ` [for-next][PATCH 5/6] rtla/timerlat: Add --deepest-idle-state for hist Steven Rostedt
2024-10-17 21:23 ` [for-next][PATCH 6/6] rtla: Documentation: Mention --deepest-idle-state Steven Rostedt
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