A UX improvement for [AL]SAN stack traces. See https://lore.kernel.org/git/cover-v2-0.4-00000000000-20220219T112653Z-avarab@xxxxxxxxx/ for the v2. Changes: * Renamed GIT_XSAN_OPTIONS to GIT_SAN_OPTIONS per Junio's suggestion * Fixed grammar ("do do do...")" in commit message. Ævar Arnfjörð Bjarmason (4): test-lib: add GIT_SAN_OPTIONS, inherit [AL]SAN_OPTIONS test-lib: correct commentary on TEST_DIRECTORY overriding test-lib: make $GIT_BUILD_DIR an absolute path test-lib: add "fast_unwind_on_malloc=0" to LSAN_OPTIONS t/test-lib.sh | 45 +++++++++++++++++++++++++++++++++++---------- 1 file changed, 35 insertions(+), 10 deletions(-) Range-diff against v2: 1: 01e63a72231 ! 1: bf31efca464 test-lib: add GIT_XSAN_OPTIONS, inherit [AL]SAN_OPTIONS @@ Metadata Author: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> ## Commit message ## - test-lib: add GIT_XSAN_OPTIONS, inherit [AL]SAN_OPTIONS + test-lib: add GIT_SAN_OPTIONS, inherit [AL]SAN_OPTIONS Change our ASAN_OPTIONS and LSAN_OPTIONS to set defaults for those variables, rather than punting out entirely if we already have them in the environment. - We do want to take any user-provided settings over our own, but we can - do do that by prepending our defaults to the variable. The - libsanitizer options parsing has "last option wins" semantics. + We want to take any user-provided settings over our own, but we can do + that by prepending our defaults to the variable. The libsanitizer + options parsing has "last option wins" semantics. It's now possible to do e.g.: @@ t/test-lib.sh: then +} + +# If [AL]SAN is in effect we want to abort so that we notice -+# problems. The GIT_XSAN_OPTIONS variable can be used to set common ++# problems. The GIT_SAN_OPTIONS variable can be used to set common +# defaults shared between [AL]SAN_OPTIONS. -+prepend_var GIT_XSAN_OPTIONS : abort_on_error=1 ++prepend_var GIT_SAN_OPTIONS : abort_on_error=1 + # If we were built with ASAN, it may complain about leaks # of program-lifetime variables. Disable it by default to lower @@ t/test-lib.sh: then # 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:abort_on_error=1} -+prepend_var ASAN_OPTIONS : $GIT_XSAN_OPTIONS ++prepend_var ASAN_OPTIONS : $GIT_SAN_OPTIONS +prepend_var ASAN_OPTIONS : detect_leaks=0 export ASAN_OPTIONS -# If LSAN is in effect we _do_ want leak checking, but we still -# want to abort so that we notice the problems. -: ${LSAN_OPTIONS=abort_on_error=1} -+prepend_var LSAN_OPTIONS : $GIT_XSAN_OPTIONS ++prepend_var LSAN_OPTIONS : $GIT_SAN_OPTIONS export LSAN_OPTIONS if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS 2: 0c2867e30dc = 2: 33a628e9c3a test-lib: correct commentary on TEST_DIRECTORY overriding 3: 229654027b8 ! 3: b03ae29fc92 test-lib: make $GIT_BUILD_DIR an absolute path @@ t/test-lib.sh: then # Prepend a string to a VAR using an arbitrary ":" delimiter, not # adding the delimiter if VAR or VALUE is empty. I.e. a generalized: @@ t/test-lib.sh: prepend_var () { - # problems. The GIT_XSAN_OPTIONS variable can be used to set common + # problems. The GIT_SAN_OPTIONS variable can be used to set common # defaults shared between [AL]SAN_OPTIONS. - prepend_var GIT_XSAN_OPTIONS : abort_on_error=1 -+prepend_var GIT_XSAN_OPTIONS : strip_path_prefix=\"$GIT_BUILD_DIR/\" + prepend_var GIT_SAN_OPTIONS : abort_on_error=1 ++prepend_var GIT_SAN_OPTIONS : strip_path_prefix=\"$GIT_BUILD_DIR/\" # If we were built with ASAN, it may complain about leaks # of program-lifetime variables. Disable it by default to lower 4: e6a48b6e4ce ! 4: d212009e517 test-lib: add "fast_unwind_on_malloc=0" to LSAN_OPTIONS @@ t/test-lib.sh @@ t/test-lib.sh: prepend_var ASAN_OPTIONS : detect_leaks=0 export ASAN_OPTIONS - prepend_var LSAN_OPTIONS : $GIT_XSAN_OPTIONS + prepend_var LSAN_OPTIONS : $GIT_SAN_OPTIONS +prepend_var LSAN_OPTIONS : fast_unwind_on_malloc=0 export LSAN_OPTIONS -- 2.35.1.1132.ga1fe46f8690
