From 4839b1135d68adca9d58a0226734cac4a9793071 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Mon, 20 Dec 2021 15:49:45 -0800
Subject: build: Add sanitizer options

Build using Address Sanitizer (asan), Leak Sanitizer (lsan), or
Undefined Behavior Sanitizer (ubsan) by using one of these options for
the configure script:

  --enable-asan
  --enable-lsan
  --enable-ubsan

For each of these to work, the compiler must support the requested
sanitizer and the requisite libraries must be installed (libasan,
liblsan, libubsan).
---
 acinclude.m4 | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 529848357..b388dfc11 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -10,6 +10,45 @@ AC_DEFUN([AC_PROG_CC_PIE], [
 	])
 ])
 
+AC_DEFUN([AC_PROG_CC_ASAN], [
+	AC_CACHE_CHECK([whether ${CC-cc} accepts -fsanitize=address],
+						ac_cv_prog_cc_asan, [
+		echo 'void f(){}' > asan.c
+		if test -z "`${CC-cc} -fsanitize=address -c asan.c 2>&1`"; then
+			ac_cv_prog_cc_asan=yes
+		else
+			ac_cv_prog_cc_asan=no
+		fi
+		rm -rf asan*
+       ])
+])
+
+AC_DEFUN([AC_PROG_CC_LSAN], [
+	AC_CACHE_CHECK([whether ${CC-cc} accepts -fsanitize=leak],
+						ac_cv_prog_cc_lsan, [
+		echo 'void f(){}' > lsan.c
+		if test -z "`${CC-cc} -fsanitize=leak -c lsan.c 2>&1`"; then
+			ac_cv_prog_cc_lsan=yes
+		else
+			ac_cv_prog_cc_lsan=no
+		fi
+		rm -rf lsan*
+	])
+])
+
+AC_DEFUN([AC_PROG_CC_UBSAN], [
+	AC_CACHE_CHECK([whether ${CC-cc} accepts -fsanitize=undefined],
+						ac_cv_prog_cc_ubsan, [
+		echo 'void f(){}' > ubsan.c
+		if test -z "`${CC-cc} -fsanitize=undefined -c ubsan.c 2>&1`"; then
+			ac_cv_prog_cc_ubsan=yes
+		else
+			ac_cv_prog_cc_ubsan=no
+		fi
+		rm -rf ubsan*
+	])
+])
+
 AC_DEFUN([COMPILER_FLAGS], [
 	with_cflags=""
 	if (test "$USE_MAINTAINER_MODE" = "yes"); then
@@ -38,6 +77,44 @@ AC_DEFUN([MISC_FLAGS], [
 			misc_cflags="$misc_cflags -O0"
 		fi
 	])
+	AC_ARG_ENABLE(asan, AC_HELP_STRING([--enable-asan],
+			[enable linking with address sanitizer]), [
+		save_LIBS=$LIBS
+		AC_CHECK_LIB(asan, _init)
+		LIBS=$save_LIBS
+		if (test "${enableval}" = "yes" &&
+				test "${ac_cv_lib_asan__init}" = "yes" &&
+				test "${ac_cv_prog_cc_asan}" = "yes"); then
+			misc_cflags="$misc_cflags -fsanitize=address";
+			misc_ldflags="$misc_ldflags -fsanitize=address"
+			AC_SUBST([ASAN_LIB], ${ac_cv_lib_asan__init})
+		fi
+	])
+	AC_ARG_ENABLE(lsan, AC_HELP_STRING([--enable-lsan],
+			[enable linking with address sanitizer]), [
+		save_LIBS=$LIBS
+		AC_CHECK_LIB(lsan, _init)
+		LIBS=$save_LIBS
+		if (test "${enableval}" = "yes" &&
+				test "${ac_cv_lib_lsan__init}" = "yes" &&
+				test "${ac_cv_prog_cc_lsan}" = "yes"); then
+			misc_cflags="$misc_cflags -fsanitize=leak";
+			misc_ldflags="$misc_ldflags -fsanitize=leak"
+			AC_SUBST([ASAN_LIB], ${ac_cv_lib_lsan__init})
+		fi
+	])
+	AC_ARG_ENABLE(ubsan, AC_HELP_STRING([--enable-ubsan],
+			[enable linking with address sanitizer]), [
+		save_LIBS=$LIBS
+		AC_CHECK_LIB(ubsan, _init)
+		LIBS=$save_LIBS
+		if (test "${enableval}" = "yes" &&
+				test "${ac_cv_lib_ubsan__init}" = "yes" &&
+				test "${ac_cv_prog_cc_ubsan}" = "yes"); then
+			misc_cflags="$misc_cflags -fsanitize=undefined";
+			misc_ldflags="$misc_ldflags -fsanitize=undefined";
+		fi
+	])
 	AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug],
 			[enable compiling with debugging information]), [
 		if (test "${enableval}" = "yes" &&
-- 
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