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SubjectRe: [PATCH 1/2] perf tools: check libasan and libubsan in Makefile.config
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On 06/02/2020 10:15 PM, Jiri Olsa wrote:
> On Tue, Jun 02, 2020 at 12:15:03PM +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>
>> ---
>> tools/perf/Makefile.config | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
>> index 12a8204..b699d21 100644
>> --- a/tools/perf/Makefile.config
>> +++ b/tools/perf/Makefile.config
>> @@ -387,6 +387,12 @@ else
>> NO_LIBBPF := 1
>> NO_JVMTI := 1
>> else
>> + ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
>> + msg := $(error No libasan found, please install libasan);
>> + endif
>> + ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
>> + msg := $(error No libubsan found, please install libubsan);
>> + endif
> hum, would it be better to have check for this in tools/build/features?

Hi Jiri,

Thanks for your suggestion.

Do you mean that it is better to add this check at the end of file
tools/build/Makefile.feature?

>
> jirka
>
>> ifneq ($(filter s% -static%,$(LDFLAGS),),)
>> msg := $(error No static glibc found, please install glibc-static);
>> else
>> --
>> 2.1.0
>>

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