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-rw-r--r--xorg-macros.m4.in47
1 files changed, 47 insertions, 0 deletions
diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in
index 9da74ef..5b56d96 100644
--- a/xorg-macros.m4.in
+++ b/xorg-macros.m4.in
@@ -1045,6 +1045,7 @@ AC_MSG_RESULT([$build_specs])
AC_DEFUN([XORG_ENABLE_UNIT_TESTS],[
AC_BEFORE([$0], [XORG_WITH_GLIB])
AC_BEFORE([$0], [XORG_LD_WRAP])
+AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS])
m4_define([_defopt], m4_default([$1], [auto]))
AC_ARG_ENABLE(unit-tests, AS_HELP_STRING([--enable-unit-tests],
[Enable building unit test cases (default: ]_defopt[)]),
@@ -1220,6 +1221,52 @@ else
fi
]) # XORG_CHECK_LINKER_FLAGS
+# XORG_MEMORY_CHECK_FLAGS
+# -----------------------
+# Minimum version: 1.16.0
+#
+# This macro attempts to find appropriate memory checking functionality
+# for various platforms which unit testing code may use to catch various
+# forms of memory allocation and access errors in testing.
+#
+# Interface to module:
+# XORG_MALLOC_DEBUG_ENV - environment variables to set to enable debugging
+# Usually added to TESTS_ENVIRONMENT in Makefile.am
+#
+# If the user sets the value of XORG_MALLOC_DEBUG_ENV, it is used verbatim.
+#
+AC_DEFUN([XORG_MEMORY_CHECK_FLAGS],[
+
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_ARG_VAR([XORG_MALLOC_DEBUG_ENV],
+ [Environment variables to enable memory checking in tests])
+
+# Check for different types of support on different platforms
+case $host_os in
+ solaris*)
+ AC_CHECK_LIB([umem], [umem_alloc],
+ [malloc_debug_env='LD_PRELOAD=libumem.so UMEM_DEBUG=default'])
+ ;;
+ *-gnu*) # GNU libc - Value is used as a single byte bit pattern,
+ # both directly and inverted, so should not be 0 or 255.
+ malloc_debug_env='MALLOC_PERTURB_=15'
+ ;;
+ darwin*)
+ malloc_debug_env='MallocPreScribble=1 MallocScribble=1 DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib'
+ ;;
+ *bsd*)
+ malloc_debug_env='MallocPreScribble=1 MallocScribble=1'
+ ;;
+esac
+
+# User supplied flags override default flags
+if test "x$XORG_MALLOC_DEBUG_ENV" != "x"; then
+ malloc_debug_env="$XORG_MALLOC_DEBUG_ENV"
+fi
+
+AC_SUBST([XORG_MALLOC_DEBUG_ENV],[$malloc_debug_env])
+]) # XORG_WITH_LINT
+
# XORG_CHECK_MALLOC_ZERO
# ----------------------
# Minimum version: 1.0.0