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| author | Jeff King <peff@peff.net> | 2017-07-10 13:24:35 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-07-10 17:02:27 (GMT) |
| commit | d0cc5796f35941d5a6ccd05146911f102bed57c4 (patch) | |
| tree | 55134214079adc31f578a74048e3f9e78af4e2a1 /t | |
| parent | 8c8e978f5719c6a58fb998742207bf907f963143 (diff) | |
| download | git-d0cc5796f35941d5a6ccd05146911f102bed57c4.zip git-d0cc5796f35941d5a6ccd05146911f102bed57c4.tar.gz git-d0cc5796f35941d5a6ccd05146911f102bed57c4.tar.bz2 | |
test-lib: set ASAN_OPTIONS variable before we run git
We turn off ASan's leak detection by default in the test
suite because it's too noisy. But we don't do so until
part-way through test-lib. This is before we've run any
tests, but after we do our initial "./git" to see if the
binary has even been built.
When built with clang, this seems to work fine. However,
using "gcc -fsanitize=address", the leak checker seems to
complain more aggressively:
$ ./git
...
==5352==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 2 byte(s) in 1 object(s) allocated from:
#0 0x7f120e7afcf8 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1cf8)
#1 0x559fc2a3ce41 in do_xmalloc /home/peff/compile/git/wrapper.c:60
#2 0x559fc2a3cf1a in do_xmallocz /home/peff/compile/git/wrapper.c:100
#3 0x559fc2a3d0ad in xmallocz /home/peff/compile/git/wrapper.c:108
#4 0x559fc2a3d0ad in xmemdupz /home/peff/compile/git/wrapper.c:124
#5 0x559fc2a3d0ad in xstrndup /home/peff/compile/git/wrapper.c:130
#6 0x559fc274535a in main /home/peff/compile/git/common-main.c:39
#7 0x7f120dabd2b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
This is a leak in the sense that we never free it, but it's
in a global that is meant to last the whole program. So it's
not really interesting or in need of fixing. And at any
rate, mentioning leaks outside of the test_expect blocks is
certainly unwelcome, as it pollutes stderr.
Let's bump the setting of ASAN_OPTIONS higher in test-lib.sh
to catch our initial "can we even run git?" test. While
we're at it, we can add a comment to make it a bit less
inscrutable.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
| -rw-r--r-- | t/test-lib.sh | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/t/test-lib.sh b/t/test-lib.sh index 30eb743..c42791e 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -36,6 +36,14 @@ then fi GIT_BUILD_DIR="$TEST_DIRECTORY"/.. +# If we were built with ASAN, it may complain about leaks +# of program-lifetime variables. Disable it by default to lower +# the noise level. This needs to happen at the start of the script, +# before we even do our "did we build git yet" check (since we don't +# want that one to complain to stderr). +: ${ASAN_OPTIONS=detect_leaks=0} +export ASAN_OPTIONS + ################################################################ # It appears that people try to run tests without building... "$GIT_BUILD_DIR/git" >/dev/null @@ -148,9 +156,6 @@ else } fi -: ${ASAN_OPTIONS=detect_leaks=0} -export ASAN_OPTIONS - # Protect ourselves from common misconfiguration to export # CDPATH into the environment unset CDPATH |