path: root/tools/build/feature/test-numa_num_possible_cpus.c
diff options
authorArnaldo Carvalho de Melo <>2015-09-17 12:20:28 -0300
committerArnaldo Carvalho de Melo <>2015-09-17 13:14:35 -0300
commitf8ac8606fd3cd72183de8eec2b151ff05040c70f (patch)
tree99430a2e85bbab9c1ec12951fd5cfd19bff5d9a0 /tools/build/feature/test-numa_num_possible_cpus.c
parent179f36dde3cec0f9f05a757b68f6a58e4edbcc95 (diff)
tools build: Add test for presence of numa_num_possible_cpus() in libnuma
The existing numa test checks only if numa.h and numa_available() are present, but that can be satisfied with an old libnuma that is not enough for the 'perf bench numa' entry, so add a test to check for that: [acme@rhel5 linux]$ make NO_AUXTRACE=1 NO_LIBPERL=1 -C tools/perf O=/tmp/build/perf install-bin make: Entering directory `/home/acme/git/linux/tools/perf' BUILD: Doing 'make -j2' parallel build Auto-detecting system features: ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ on ] <SNIP> config/Makefile:577: Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8 INSTALL binaries <SNIP> This fixes the build on old systems such as RHEL/CentOS 5.11. Cc: Adrian Hunter <> Cc: Borislav Petkov <> Cc: David Ahern <> Cc: Frederic Weisbecker <> Cc: Jiri Olsa <> Cc: Namhyung Kim <> Cc: "Naveen N. Rao" <> Cc: Peter Zijlstra <> Cc: Srikar Dronamraju <> Cc: Stephane Eranian <> Cc: Victor Kamensky <> Cc: Vinson Lee <> Cc: Wang Nan <> Link: Signed-off-by: Arnaldo Carvalho de Melo <>
Diffstat (limited to 'tools/build/feature/test-numa_num_possible_cpus.c')
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/build/feature/test-numa_num_possible_cpus.c b/tools/build/feature/test-numa_num_possible_cpus.c
new file mode 100644
index 000000000000..2606e94b0659
--- /dev/null
+++ b/tools/build/feature/test-numa_num_possible_cpus.c
@@ -0,0 +1,6 @@
+#include <numa.h>
+int main(void)
+ return numa_num_possible_cpus();