[fuzz] Standardize, document, and backport fuzzing defines.
We had several defines around the code base that were not
very descriptive. Additionally, we had a patch of extra
runtime restrictions living in oss-fuzz that were applied
when fuzzing over there for some fuzzers.
This has all be consolidated and controlled via the defines
documented in site/dev/testing/fuzz.md
As such, we can remove one of the patches that is in oss-fuzz,
taking us closer to being able to fuzz in the CI/CQ.
PS 1 renames existing fuzz defines to the new schema.
PS 2-3 backports skia.diff from oss-fuzz and changes those
definitions to have the _GREATLY modifier.
PS 5+ further condenses the defines so that there is one
define for gating the runtime checks.
Change-Id: Ia4ad96f30c1e9620a2123b510e97c6f501a2e257
Docs-Preview: https://skia.org/?cl=316443
Bug: skia:10713
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316443
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
diff --git a/fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp b/fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp
index 30174bb..450e1b0 100644
--- a/fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp
+++ b/fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp
@@ -27,7 +27,7 @@
desc->findEntry(tagToFind, &ignore);
}
-#if defined(IS_FUZZING_WITH_LIBFUZZER)
+#if defined(SK_BUILD_FOR_LIBFUZZER)
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if (size > 1024) {
return 0;