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Message-ID: <20200603113228.GV31795@kernel.org>
Date: Wed, 3 Jun 2020 08:32:28 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Tiezhu Yang <yangtiezhu@...ngson.cn>
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>
Subject: Re: [PATCH v2] tools build: Check libasan and libubsan in
Makefile.feature
Em Wed, Jun 03, 2020 at 02:10:04PM +0800, Tiezhu Yang escreveu:
> 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@...ux 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@...ux 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@...ngson.cn>
> ---
>
> v2:
> - Check libasan and libubsan in tools/build/Makefile.feature
> - Modify the patch subject
>
> tools/build/Makefile.feature | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
> index 3abd431..e147c17 100644
> --- a/tools/build/Makefile.feature
> +++ b/tools/build/Makefile.feature
> @@ -252,3 +252,10 @@ ifeq ($(feature_verbose),1)
> $(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
> $(info )
> endif
> +
> +ifneq ($(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
Hey, we need to only do that if -fsanitize=address is in EXTRA_CFLAGS,
right?
I applied it and got:
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf
$ make O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j8' parallel build
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h
Warning: Kernel ABI header at 'tools/perf/util/hashmap.c' differs from latest version at 'tools/lib/bpf/hashmap.c'
diff -u tools/perf/util/hashmap.c tools/lib/bpf/hashmap.c
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libbfd: [ on ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
/home/acme/git/perf/tools/build/Makefile.feature:255: *** No libasan found, please install libasan. Stop.
make[1]: *** [Makefile.perf:231: sub-make] Error 2
make: *** [Makefile:110: install-bin] Error 2
make: Leaving directory '/home/acme/git/perf/tools/perf'
$
Something enclosed in:
ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
Right Jiri?
- Arnaldo
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