add script for building with afl

tests/fuzzers/afl/build-afl.sh

@@ -0,0 +1,56 @@
+#/bin/sh
+#
+# this creates builds which can be used to fuzz with afl
+#
+# by Paul Dreik 20220825
+
+set -eux
+
+here=$(dirname $0)
+gitroot=$(git -C $here rev-parse --show-toplevel)
+
+
+###################################
+# afl clang
+export AFL_USE_ASAN=1
+export AFL_USE_UBSAN=1
+
+target=$here/build-afl-clang
+
+cmake \
+-DCMAKE_C_COMPILER=afl-clang-fast \
+-S $gitroot -B $target
+
+cmake --build $target -j $(nproc)
+
+###################################
+# afl clang, with asserts disabled
+
+target=$here/build-afl-clang-ndebug
+
+cmake \
+-DCMAKE_C_COMPILER=afl-clang-fast \
+-DCMAKE_C_FLAGS="-g -DNDEBUG" \
+-S $gitroot -B $target
+
+cmake --build $target  -j $(nproc)
+
+###################################
+# sanitizer build with asserts disabled
+target=$here/build-clang-release-replay
+cmake \
+-DCMAKE_C_COMPILER=clang-14 \
+-DCMAKE_C_FLAGS="-g -fsanitize=address,undefined -O3 -DNDEBUG" \
+-S $gitroot -B $target
+
+cmake --build $target -j $(nproc)
+
+###################################
+# sanitizer build with asserts enabled
+target=$here/build-clang-debug-replay
+cmake \
+-DCMAKE_C_COMPILER=clang-14 \
+-DCMAKE_C_FLAGS="-g -fsanitize=address,undefined -O3" \
+-S $gitroot -B $target
+
+cmake --build $target -j $(nproc)