* [PATCH v3] tools build: Check libasan and libubsan in Makefile.feature
@ 2020-06-17 2:27 Tiezhu Yang
2020-06-17 10:27 ` Jiri Olsa
0 siblings, 1 reply; 2+ messages in thread
From: Tiezhu Yang @ 2020-06-17 2:27 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo, Peter Zijlstra, Ingo Molnar,
Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim
Cc: linux-kernel, Xuefeng Li, Tiezhu Yang
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
tools/build/Makefile.feature | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index cb15237..bc28dc9 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -250,3 +250,15 @@ ifeq ($(feature_verbose),1)
$(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
$(info )
endif
+
+ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
+ ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
+ msg := $(error No libasan found, please install libasan);
+ endif
+endif
+
+ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
+ ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
+ msg := $(error No libubsan found, please install libubsan);
+ endif
+endif
--
2.1.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v3] tools build: Check libasan and libubsan in Makefile.feature
2020-06-17 2:27 [PATCH v3] tools build: Check libasan and libubsan in Makefile.feature Tiezhu Yang
@ 2020-06-17 10:27 ` Jiri Olsa
0 siblings, 0 replies; 2+ messages in thread
From: Jiri Olsa @ 2020-06-17 10:27 UTC (permalink / raw)
To: Tiezhu Yang
Cc: Arnaldo Carvalho de Melo, Peter Zijlstra, Ingo Molnar,
Mark Rutland, Alexander Shishkin, Namhyung Kim, linux-kernel,
Xuefeng Li
On Wed, Jun 17, 2020 at 10:27:01AM +0800, Tiezhu Yang wrote:
> When build perf with ASan or UBSan, if libasan or libubsan can not find,
> the feature-glibc is 0 and there exists the following error log which is
> wrong, because we can find gnu/libc-version.h in /usr/include, glibc-devel
> is also installed.
>
> [yangtiezhu@linux perf]$ 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
>
> tools/build/Makefile.feature | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
> index cb15237..bc28dc9 100644
> --- a/tools/build/Makefile.feature
> +++ b/tools/build/Makefile.feature
> @@ -250,3 +250,15 @@ ifeq ($(feature_verbose),1)
> $(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
> $(info )
> endif
> +
> +ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
> + ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
> + msg := $(error No libasan found, please install libasan);
> + endif
> +endif
> +
> +ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
> + ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
> + msg := $(error No libubsan found, please install libubsan);
> + endif
> +endif
sry, I made uninformed guess when I replied to your first patch,
I checked on libasan/libubsan and they don't have devel headers
so I think the check above should be in Makefile.config together
with the EXTRA_CFLAGS check for -fsanitize options as you have above
thanks,
jirka
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