On 04/08/2022 14:38, Phillip Wood via GitGitGadget wrote:
From: Phillip Wood <phillip.wood@xxxxxxxxxxxxx> 131b94a10a ("test-lib.sh: Use GLIBC_TUNABLES instead of MALLOC_CHECK_ on glibc >= 2.34", 2022-03-04) introduced a check for the version of glibc that is in use. This check is performed as part of setup_malloc_check() which is called at least once for each test. As the test involves forking `getconf` and `expr` cache the result and use that within setup_malloc_check() to avoid forking these extra processes for each test. Signed-off-by: Phillip Wood <phillip.wood@xxxxxxxxxxxxx> --- tests: cache glibc version checkA recent discussion on the list[1] reminded me that this patch waswaiting to be sent
[1] https://lore.kernel.org/git/YuL7EotrIpnOn5BT@xxxxxxxxxxxxxxxxxxxxxxx/
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1311%2Fphillipwood%2Fwip%2Ftest-cache-glibc-tunables-v1 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1311/phillipwood/wip/test-cache-glibc-tunables-v1 Pull-Request: https://github.com/gitgitgadget/git/pull/1311 t/test-lib.sh | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/t/test-lib.sh b/t/test-lib.sh index 7726d1da88a..ad81c78fce7 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -557,14 +557,19 @@ then : nothing } else + _USE_GLIBC_TUNABLES= + if _GLIBC_VERSION=$(getconf GNU_LIBC_VERSION 2>/dev/null) && + _GLIBC_VERSION=${_GLIBC_VERSION#"glibc "} && + expr 2.34 \<= "$_GLIBC_VERSION" >/dev/null + then + _USE_GLIBC_TUNABLES=YesPlease + fi setup_malloc_check () { local g local t MALLOC_CHECK_=3 MALLOC_PERTURB_=165 export MALLOC_CHECK_ MALLOC_PERTURB_ - if _GLIBC_VERSION=$(getconf GNU_LIBC_VERSION 2>/dev/null) && - _GLIBC_VERSION=${_GLIBC_VERSION#"glibc "} && - expr 2.34 \<= "$_GLIBC_VERSION" >/dev/null + if test -n "$_USE_GLIBC_TUNABLES" then g= LD_PRELOAD="libc_malloc_debug.so.0" base-commit: 23b219f8e3f2adfb0441e135f0a880e6124f766c
