From: Jorge Pereira <jpereiran@gmail.com>
Date: Wed, 9 Sep 2020 18:11:29 +0000 (-0300)
Subject: configure: Add sanitizer fuzzer support
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49697799fed3d2e47eef8a9064d0b699fda96f78;p=thirdparty%2Ffreeradius-server.git

configure: Add sanitizer fuzzer support
---

diff --git a/configure b/configure
index 8e76e71ec96..635f599851c 100755
--- a/configure
+++ b/configure
@@ -747,6 +747,7 @@ enable_verify_ptr
 enable_largefile
 enable_strict_dependencies
 enable_werror
+enable_llvm_fuzzer_sanitizer
 enable_llvm_address_sanitizer
 enable_llvm_leak_sanitizer
 enable_llvm_undefined_behaviour_sanitizer
@@ -1426,6 +1427,9 @@ Optional Features:
   --disable-largefile     omit support for large files
   --enable-strict-dependencies  fail configure on lack of module dependancy.
   --enable-werror         causes the build to fail if any warnings are generated.
+  --enable-llvm-fuzzer-sanitizer
+                          build with support for LLVM's fuzzer sanitizer (if
+                          building with clang).
   --enable-llvm-address-sanitizer
                           build with support for LLVM's address sanitizer (if
                           building with clang).
@@ -5791,6 +5795,19 @@ if test "${enable_werror+set}" = set; then :
 fi
 
 
+# Check whether --enable-llvm-fuzzer-sanitizer was given.
+if test "${enable_llvm_fuzzer_sanitizer+set}" = set; then :
+  enableval=$enable_llvm_fuzzer_sanitizer;  case "$enableval" in
+  no)
+    llvm_fuzzer_sanitizer=no
+    ;;
+  *)
+    llvm_fuzzer_sanitizer=yes
+  esac
+
+fi
+
+
 # Check whether --enable-llvm-address-sanitizer was given.
 if test "${enable_llvm_address_sanitizer+set}" = set; then :
   enableval=$enable_llvm_address_sanitizer;  case "$enableval" in
@@ -13246,6 +13263,10 @@ $as_echo "$ax_cv_cc_wimplicit_fallthrough_flag" >&6; }
 
           fsanitizeflags=
 
+        if test "x$llvm_fuzzer_sanitizer" = "xyes" && test "x$ax_cv_cc_clang" = "xyes"; then
+                fsanitizeflags="$fsanitizeflags,fuzzer"
+  fi
+
         if test "x$llvm_address_sanitizer" = "xyes" && test "x$ax_cv_cc_clang" = "xyes"; then
                         devcflags="$devcflags -fno-omit-frame-pointer -fno-optimize-sibling-calls"
 
diff --git a/configure.ac b/configure.ac
index 5921606197e..f88f91f8fa5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -352,6 +352,22 @@ AC_ARG_ENABLE(werror,
   esac ]
 )
 
+dnl #
+dnl #  Enable the -fsanitize=fuzzer and link in the address sanitizer
+dnl #  libraries.
+dnl #
+AC_ARG_ENABLE(llvm-fuzzer-sanitizer,
+[AS_HELP_STRING([--enable-llvm-fuzzer-sanitizer],
+                [build with support for LLVM's fuzzer sanitizer (if building with clang).])],
+[ case "$enableval" in
+  no)
+    llvm_fuzzer_sanitizer=no
+    ;;
+  *)
+    llvm_fuzzer_sanitizer=yes
+  esac ]
+)
+
 dnl #
 dnl #  Enable the -fsanitize=address and link in the address sanitizer
 dnl #  libraries.
@@ -1752,6 +1768,16 @@ if test "x$developer" = "xyes"; then
   dnl #
   fsanitizeflags=
 
+  dnl #
+  dnl #  If running with clang, add in FUZZER
+  dnl #
+  if test "x$llvm_fuzzer_sanitizer" = "xyes" && test "x$ax_cv_cc_clang" = "xyes"; then
+    dnl #
+    dnl #  -fsanitize=fuzzer  - Build with fuzzer support
+    dnl #
+    fsanitizeflags="$fsanitizeflags,fuzzer"
+  fi
+
   dnl #
   dnl #  If running with clang, add in ASAN
   dnl #