1 files changed, 78 insertions, 0 deletions
diff --git a/security/nss/coreconf/sanitizers.sh b/security/nss/coreconf/sanitizers.sh
new file mode 100644
index 000000000..bd77571ed
--- /dev/null
+++ b/security/nss/coreconf/sanitizers.sh
@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+# This file is used by build.sh to setup sanitizers.
+
+sanitizer_flags=""
+sanitizers=()
+
+# This tracks what sanitizers are enabled so they don't get enabled twice.  This
+# means that doing things that enable the same sanitizer twice (such as enabling
+# both --asan and --fuzz) is order-dependent: only the first is used.
+enable_sanitizer()
+{
+    local san="$1"
+    for i in "${sanitizers[@]}"; do
+        [ "$san" = "$i" ] && return
+    done
+    sanitizers+=("$san")
+
+    if [ -z "$sanitizer_flags" ]; then
+        gyp_params+=(-Dno_zdefs=1)
+    fi
+
+    local cflags=$(python $cwd/coreconf/sanitizers.py "$@")
+    sanitizer_flags="$sanitizer_flags $cflags"
+}
+
+enable_sancov()
+{
+    local clang_version=$($CC --version | grep -oE '([0-9]{1,}\.)+[0-9]{1,}')
+    if [[ ${clang_version:0:1} -lt 4 && ${clang_version:0:1} -eq 3 && ${clang_version:2:1} -lt 9 ]]; then
+        echo "Need at least clang-3.9 (better 4.0) for sancov." 1>&2
+        exit 1
+    fi
+
+    local sancov
+    if [ -n "$1" ]; then
+        sancov="$1"
+    elif [ "${clang_version:0:3}" = "3.9" ]; then
+        sancov=edge,indirect-calls,8bit-counters
+    else
+        sancov=trace-pc-guard,trace-cmp
+    fi
+    enable_sanitizer sancov "$sancov"
+}
+
+enable_ubsan()
+{
+    local ubsan
+    if [ -n "$1" ]; then
+        ubsan="$1"
+    else
+        ubsan=bool,signed-integer-overflow,shift,vptr
+    fi
+    enable_sanitizer ubsan "$ubsan"
+}
+
+# Not strictly a sanitizer, but the pattern fits
+scanbuild=()
+enable_scanbuild()
+{
+    [ "${#scanbuild[@]}" -gt 0 ] && return
+
+    scanbuild=(scan-build)
+    if [ -n "$1" ]; then
+        scanbuild+=(-o "$1")
+    fi
+    # pass on CC and CCC to scanbuild
+    if [ -n "$CC" ]; then
+        scanbuild+=(--use-cc="$CC")
+    fi
+    if [ -n "$CCC" ]; then
+        scanbuild+=(--use-c++="$CCC")
+    fi
+}
+
+run_scanbuild()
+{
+    "${scanbuild[@]}" "$@"
+}