linux-stable/tools/build
Arnaldo Carvalho de Melo 5c4d7c82c0 perf unwind: Do not put libunwind-{x86,aarch64} in FEATURE_TESTS_BASIC
As it is not normally available on x86_64 not being tested on test-all.c
but being in FEATURE_TESTS_BASIC ends up implying that those features
are present, which leads to trying to link with those libraries and a
build failure now that test-all.c is finally again building
successfully:

  /usr/bin/ld: cannot find -lunwind-x86
  /usr/bin/ld: cannot find -lunwind-aarch64
  collect2: error: ld returned 1 exit status
  make[3]: *** [Makefile:199: /tmp/build/perf/plugin_jbd2.so] Error 1
  make[3]: *** Waiting for unfinished jobs....
  /usr/bin/ld: cannot find -lunwind-x86
  /usr/bin/ld: cannot find -lunwind-aarch64

So remove those features from there and explicitely test them.

And then move this patch to just before the last one that allows this to
be exposed, so that we keep the tree bisectable.

With all this in place we get, at this point:

  $ ldd /tmp/build/perf/feature/test-libunwind.bin
	linux-vdso.so.1 (0x00007fffa09c6000)
	libunwind-x86_64.so.8 => /lib64/libunwind-x86_64.so.8 (0x00007fbcf4451000)
	libunwind.so.8 => /lib64/libunwind.so.8 (0x00007fbcf4435000)
	liblzma.so.5 => /lib64/liblzma.so.5 (0x00007fbcf440c000)
	libelf.so.1 => /lib64/libelf.so.1 (0x00007fbcf43f2000)
	libc.so.6 => /lib64/libc.so.6 (0x00007fbcf422c000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fbcf4211000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fbcf4491000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fbcf41ed000)
	libz.so.1 => /lib64/libz.so.1 (0x00007fbcf41d3000)
  $ cat /tmp/build/perf/feature/test-libunwind-x86.make.output
  test-libunwind-x86.c:2:10: fatal error: libunwind-x86.h: No such file or directory
   #include <libunwind-x86.h>
            ^~~~~~~~~~~~~~~~~
  compilation terminated.
  $ cat /tmp/build/perf/feature/test-libunwind-aarch64.make.output
  test-libunwind-aarch64.c:2:10: fatal error: libunwind-aarch64.h: No such file or directory
  #include <libunwind-aarch64.h>
           ^~~~~~~~~~~~~~~~~~~~~
  compilation terminated.
  $
  $ ldd ~/bin/perf | grep unwind
	libunwind-x86_64.so.8 => /lib64/libunwind-x86_64.so.8 (0x00007f5ceb24b000)
	libunwind.so.8 => /lib64/libunwind.so.8 (0x00007f5ceb22f000)
  $

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Will Deacon <will.deacon@arm.com>
Link: https://lkml.kernel.org/n/tip-vs6kwqsvwk7oxhs6z9mq87pp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-02-14 15:18:05 -03:00
..
Documentation tools build: Add CFLAGS_REMOVE_* support 2016-11-14 11:37:25 -03:00
feature perf coresight: Do not test for libopencsd by default 2019-02-14 15:18:05 -03:00
tests License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore perf build: Add fixdep to .gitignore 2015-10-20 10:43:28 -03:00
Build tools build: Make fixdep a hostprog 2016-10-03 11:40:35 -03:00
Build.include kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS 2018-07-18 01:18:05 +09:00
fixdep.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS 2018-07-18 01:18:05 +09:00
Makefile.build License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile.feature perf unwind: Do not put libunwind-{x86,aarch64} in FEATURE_TESTS_BASIC 2019-02-14 15:18:05 -03:00
Makefile.include perf build: Add special fixdep cleaning rule 2017-02-17 16:04:38 -03:00