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5c4d7c82c0
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>
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