kernel/linux.git/tools/build/feature/test-all.c, branch linux-4.4.y

tools build: Add test for presence of __get_cpuid() gcc builtin

2015-09-17T16:14:35+00:00

The auxtrace code needed by Intel PT uses the __get_cpuid() gcc builtin, that is not present in old systems, breaking the build. Add a test to check for that builtin and disable AUXTRACE in those systems. [acme@rhel5 linux]$ make 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: ... lzma: [ on ] ... get_cpuid: [ OFF ] config/Makefile:630: Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc MKDIR /tmp/build/perf/util/ 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: http://lkml.kernel.org/n/tip-d4puslul0jltoodzpx9r4sje@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools build: Add test for presence of numa_num_possible_cpus() in libnuma

2015-09-17T16:14:35+00:00

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 ] 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 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: http://lkml.kernel.org/n/tip-zqriqkezppi2de2iyjin1tnc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools build: Add feature check for lzma library

2015-03-21T17:53:39+00:00

Will be used to decompress 'xz' objects. The check detects the liblzma.so devel library normally delivered by xz package. Signed-off-by: Jiri Olsa Acked-by: Namhyung Kim Cc: Adrian Hunter Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian

perf build: Move feature checks code under tools/build

2015-03-21T17:53:35+00:00

Moving feature checks code under tools/build directory. Changing also $feature_dir to point to new feature directory location and perf Makefiles to include Makefile.feature from new location. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-3lamtb30dhf4wo99y1n8kxg0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo