linux/tools/build/feature
Arnaldo Carvalho de Melo b0063dbfb0 tools build: Add test for presence of __get_cpuid() gcc builtin
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:
  <SNIP>
  ...                          lzma: [ on  ]
  ...                     get_cpuid: [ OFF ]
  <SNIP>
  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/
  <SNIP>

This fixes the build on old systems such as RHEL/CentOS 5.11.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Victor Kamensky <victor.kamensky@linaro.org>
Cc: Vinson Lee <vlee@twopensource.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-d4puslul0jltoodzpx9r4sje@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-17 13:14:35 -03:00
..
.gitignore
Makefile tools build: Add test for presence of __get_cpuid() gcc builtin 2015-09-17 13:14:35 -03:00
test-all.c tools build: Add test for presence of __get_cpuid() gcc builtin 2015-09-17 13:14:35 -03:00
test-backtrace.c
test-bionic.c
test-bpf.c bpf tools: Introduce 'bpf' library and add bpf feature check 2015-08-07 10:16:56 -03:00
test-compile.c
test-cplus-demangle.c
test-dwarf.c
test-fortify-source.c
test-get_cpuid.c tools build: Add test for presence of __get_cpuid() gcc builtin 2015-09-17 13:14:35 -03:00
test-glibc.c perf tools: Fix build errors with mipsel-linux-uclibc compiler 2015-08-05 16:56:16 -03:00
test-gtk2-infobar.c
test-gtk2.c
test-hello.c
test-libaudit.c
test-libbabeltrace.c
test-libbfd.c
test-libdw-dwarf-unwind.c
test-libelf-getphdrnum.c
test-libelf-mmap.c
test-libelf.c
test-libnuma.c
test-libperl.c
test-libpython-version.c
test-libpython.c
test-libslang.c
test-libunwind-debug-frame.c
test-libunwind.c
test-lzma.c
test-numa_num_possible_cpus.c tools build: Add test for presence of numa_num_possible_cpus() in libnuma 2015-09-17 13:14:35 -03:00
test-pthread-attr-setaffinity-np.c
test-stackprotector-all.c
test-sync-compare-and-swap.c
test-timerfd.c
test-zlib.c