On 06/17/2020 03:39 AM, Arnaldo Carvalho de Melo wrote:
Em Mon, Jun 15, 2020 at 10:20:10AM +0800, Tiezhu Yang escreveu:
On 06/03/2020 07:32 PM, Arnaldo Carvalho de Melo wrote:
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@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 <[email protected]>
---
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?
Sorry for the late reply.
Maybe -fsanitize=undefined is also needed.
Please reference tools/perf/Documentation/Build.txt
Can you send an updated patch then?
OK, I will send v3 soon.
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
