Add valgrind and ubsan suppressions

configure.ac

@@ -259,7 +259,7 @@ AC_ARG_ENABLE([coverage],
 AC_ARG_ENABLE([valgrind],
 	[AS_HELP_STRING([--enable-valgrind],[enable the use of valgrind in testing])],
 	[
-	TESTENV="$VALGRIND --leak-check=full --error-exitcode=1"
+	TESTENV="$VALGRIND --leak-check=full --suppressions=valgrind.supp --error-exitcode=1"
 	FAILENV="$VALGRIND --error-exitcode=1"
 	CFLAGS="$CFLAGS -DCHECKER"
 	MEMORY_CHECKER=1
@@ -279,7 +279,7 @@ AC_ARG_ENABLE([sgcheck],
 AC_ARG_ENABLE([helgrind],
 	[AS_HELP_STRING([--enable-helgrind],[enable the use of helgrind in testing])],
 	[
-	TESTENV="$VALGRIND --tool=helgrind --fair-sched=try --error-exitcode=1"
+	TESTENV="$VALGRIND --tool=helgrind --suppressions=valgrind.supp --fair-sched=try --error-exitcode=1"
 	FAILENV="$TESTENV"
 	CFLAGS="$CFLAGS -DCHECKER"
 	THREAD_CHECKER=1
@@ -289,7 +289,7 @@ AC_ARG_ENABLE([helgrind],
 AC_ARG_ENABLE([drd],
 	[AS_HELP_STRING([--enable-drd],[enable the use of drd in testing])],
 	[
-	TESTENV="$VALGRIND --tool=drd --fair-sched=try --error-exitcode=1"
+	TESTENV="$VALGRIND --tool=drd --suppressions=valgrind.supp --fair-sched=try --error-exitcode=1"
 	FAILENV="$TESTENV"
 	CFLAGS="$CFLAGS -DCHECKER"
 	THREAD_CHECKER=1
@@ -315,7 +315,7 @@ AC_ARG_ENABLE([msan],
 AC_ARG_ENABLE([ubsan],
 	[AS_HELP_STRING([--enable-ubsan],[enable the use of UndefinedBehaviourSanitizer in testing])],
 	[
-	CFLAGS="$CFLAGS -DCHECKER -fsanitize=undefined"
+	CFLAGS="$CFLAGS -DCHECKER -fsanitize=undefined -fno-sanitize=function"
 	MEMORY_CHECKER=1
 	],
 	[])

maketest.sh

@@ -13,6 +13,8 @@ make distclean
 
 cd $DEST
 
+cp $SOURCE/valgrind.supp $DEST
+
 # Coverage
 if ! $SOURCE/configure --enable-coverage --enable-sde; then
 	exit 1

valgrind.supp

@@ -5,3 +5,64 @@
    fun:printf
 }
 
+###############################################################################
+# Ignore races in pthread functions implemented in /lib64/libc-2.42.so
+# Keeps helgrind and drd quiet for internal GLIBC synchronization,
+# but still reports races in user code.
+###############################################################################
+
+{
+   glibc_pthread_mutex_lock
+   Helgrind:Race
+   fun:pthread_mutex_lock*
+}
+
+{
+   glibc_pthread_mutex_unlock
+   Helgrind:Race
+   fun:pthread_mutex_unlock*
+}
+
+{
+   glibc_pthread_cond_wait
+   Helgrind:Race
+   ...
+   fun:pthread_cond_wait*
+}
+
+{
+   glibc_pthread_cond_signal
+   Helgrind:Race
+   fun:pthread_cond_signal*
+}
+
+{
+   glibc_pthread_cond_broadcast
+   Helgrind:Race
+   fun:pthread_cond_broadcast*
+}
+
+{
+   glibc_pthread_join
+   Helgrind:Race
+   ...
+   fun:pthread_join*
+}
+
+{
+   glibc_thread_start
+   Helgrind:Race
+   fun:start_thread
+}
+
+{
+   glibc_set_vma_name
+   Helgrind:Race
+   fun:__set_vma_name
+}
+
+{
+   glibc_name_stack_maps
+   drd:ConflictingAccess
+   fun:name_stack_maps
+}