test-lib.sh: Use GLIBC_TUNABLES instead of MALLOC_CHECK_ on glibc >= 2.34
In glibc >= 2.34 MALLOC_CHECK_ and MALLOC_PERTURB_ environment
variables have been replaced by GLIBC_TUNABLES. Also the new
glibc requires that you preload a library called libc_malloc_debug.so
to get these features.
Using the ordinary glibc system variable detect if this is glibc >= 2.34 and
use GLIBC_TUNABLES and the new library.
This patch was inspired by a Richard W.M. Jones ndbkit patch
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0f7a137..8e59c58 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -518,9 +518,25 @@
setup_malloc_check () {
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 \<= "$_GLIBC_VERSION" >/dev/null
+ then
+ g=
+ LD_PRELOAD="libc_malloc_debug.so.0"
+ for t in \
+ glibc.malloc.check=1 \
+ glibc.malloc.perturb=165
+ do
+ g="${g#:}:$t"
+ done
+ GLIBC_TUNABLES=$g
+ export LD_PRELOAD GLIBC_TUNABLES
+ fi
}
teardown_malloc_check () {
unset MALLOC_CHECK_ MALLOC_PERTURB_
+ unset LD_PRELOAD GLIBC_TUNABLES
}
fi
