From b0f4c9087e1e016667e34c6c413c57435e591b45 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Mon, 8 Dec 2014 02:47:06 -0500 Subject: t: support clang/gcc AddressSanitizer When git is compiled with "-fsanitize=address" (using clang or gcc >= 4.8), all invocations of git will check for buffer overflows. This is similar to running with valgrind, except that it is more thorough (because of the compiler support, function-local buffers can be checked, too) and runs much faster (making it much less painful to run the whole test suite with the checks turned on). Unlike valgrind, the magic happens at compile-time, so we don't need the same infrastructure in the test suite that we did to support --valgrind. But there are two things we can help with: 1. On some platforms, the leak-detector is on by default, and causes every invocation of "git init" (and thus every test script) to fail. Since running git with the leak detector is pointless, let's shut it off automatically in the tests, unless the user has already configured it. 2. When apache runs a CGI, it clears the environment of unknown variables. This means that the $ASAN_OPTIONS config doesn't make it to git-http-backend, and it dies due to the leak detector. Let's mark the variable as OK for apache to pass. With these two changes, running make CC=clang CFLAGS=-fsanitize=address test works out of the box. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- t/lib-httpd/apache.conf | 1 + t/test-lib.sh | 3 +++ 2 files changed, 4 insertions(+) (limited to 't') diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf index 7713dd260..03a4c2ee8 100644 --- a/t/lib-httpd/apache.conf +++ b/t/lib-httpd/apache.conf @@ -69,6 +69,7 @@ LockFile accept.lock PassEnv GIT_VALGRIND PassEnv GIT_VALGRIND_OPTIONS PassEnv GNUPGHOME +PassEnv ASAN_OPTIONS Alias /dumb/ www/ Alias /auth/dumb/ www/auth/dumb/ diff --git a/t/test-lib.sh b/t/test-lib.sh index cf19339cc..3177298ea 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -140,6 +140,9 @@ else } fi +: ${ASAN_OPTIONS=detect_leaks=0} +export ASAN_OPTIONS + # Protect ourselves from common misconfiguration to export # CDPATH into the environment unset CDPATH -- cgit v1.2.1