Merge pull request #11887 from evverx/fuzzbuzz

tests: hook up fuzz targets to FuzzBuzz

src/fuzz/fuzz.h

@@ -6,3 +6,6 @@
 
 /* The entry point into the fuzzer */
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+/* https://docs.fuzzbuzz.io/developer-documentation/porting-targets-to-fuzzbuzz/libfuzzer-targets */
+int FuzzerEntrypoint(const uint8_t *data, size_t size);

src/fuzz/fuzzer-entry-point.c

@@ -0,0 +1,5 @@
+#include "fuzz.h"
+
+int FuzzerEntrypoint(const uint8_t *data, size_t size) {
+        return LLVMFuzzerTestOneInput(data, size);
+}

src/test/meson.build

@@ -987,7 +987,10 @@ tests += [
 
 ]
 
-if cxx_cmd != ''
+# test-bus-vtable-cc.cc is a symlink and symlinks get lost in containers on FuzzBuzz.
+# The issue has been reported to the developers of FuzzBuzz and hopefully will be fixed soon.
+# In the meantime, let's just skip the symlink there.
+if cxx_cmd != '' and not want_fuzzbuzz
         tests += [
                 [['src/libsystemd/sd-bus/test-bus-vtable-cc.cc'],
                  [],