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SubjectRe: [PATCH v4] perf tools: Check libasan and libubsan in Makefile.config
On Thu, Jun 18, 2020 at 10:06:01AM +0800, Tiezhu Yang wrote:
> When build perf with ASan or UBSan, if libasan or libubsan can not find,
> the feature-glibc is 0 and there exists the following error log which is
> wrong, because we can find gnu/libc-version.h in /usr/include, glibc-devel
> is also installed.
>
> [yangtiezhu@linux perf]$ make DEBUG=1 EXTRA_CFLAGS='-fno-omit-frame-pointer -fsanitize=address'
> BUILD: Doing 'make -j4' parallel build
> HOSTCC fixdep.o
> HOSTLD fixdep-in.o
> LINK fixdep
> <stdin>:1:0: warning: -fsanitize=address and -fsanitize=kernel-address are not supported for this target
> <stdin>:1:0: warning: -fsanitize=address not supported for this target
>
> Auto-detecting system features:
> ... dwarf: [ OFF ]
> ... dwarf_getlocations: [ OFF ]
> ... glibc: [ OFF ]
> ... gtk2: [ OFF ]
> ... libaudit: [ OFF ]
> ... libbfd: [ OFF ]
> ... libcap: [ OFF ]
> ... libelf: [ OFF ]
> ... libnuma: [ OFF ]
> ... numa_num_possible_cpus: [ OFF ]
> ... libperl: [ OFF ]
> ... libpython: [ OFF ]
> ... libcrypto: [ OFF ]
> ... libunwind: [ OFF ]
> ... libdw-dwarf-unwind: [ OFF ]
> ... zlib: [ OFF ]
> ... lzma: [ OFF ]
> ... get_cpuid: [ OFF ]
> ... bpf: [ OFF ]
> ... libaio: [ OFF ]
> ... libzstd: [ OFF ]
> ... disassembler-four-args: [ OFF ]
>
> Makefile.config:393: *** No gnu/libc-version.h found, please install glibc-dev[el]. Stop.
> Makefile.perf:224: recipe for target 'sub-make' failed
> make[1]: *** [sub-make] Error 2
> Makefile:69: recipe for target 'all' failed
> make: *** [all] Error 2
> [yangtiezhu@linux perf]$ ls /usr/include/gnu/libc-version.h
> /usr/include/gnu/libc-version.h
>
> After install libasan and libubsan, the feature-glibc is 1 and the build
> process is success, so the cause is related with libasan or libubsan, we
> should check them and print an error log to reflect the reality.
>
> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
> ---
>
> v2:
> - Check libasan and libubsan in tools/build/Makefile.feature
> - Modify the patch subject
>
> v3:
> - Check EXTRA_CFLAGS first
>
> v4:
> - Check libasan and libubsan in tools/perf/Makefile.config
> - Modify the patch subject

Acked-by: Jiri Olsa <jolsa@redhat.com>

thanks,
jirka

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