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fuzz: Accept options in FUZZ_TARGET macro

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* This allows to reduce the number of total macros.
* Also, adding a new option no longer requires doubling the number of
  macros in the worst case.
This commit is contained in:
MarcoFalke
2023-07-11 14:00:51 +02:00
parent 357e3f6aa4
commit fa36ad8b09
3 changed files with 34 additions and 26 deletions
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23
src/test/fuzz/fuzz.h
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@@ -21,25 +21,28 @@
using FuzzBufferType = Span<const uint8_t>;
using TypeTestOneInput = std::function<void(FuzzBufferType)>;
using TypeInitialize = std::function<void()>;
using TypeHidden = bool;
struct FuzzTargetOptions {
std::function<void()> init{[] {}};
bool hidden{false};
};
void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, TypeInitialize init, TypeHidden hidden);
void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, FuzzTargetOptions opts);
inline void FuzzFrameworkEmptyInitFun() {}
#define FUZZ_TARGET(name) \
FUZZ_TARGET_INIT(name, FuzzFrameworkEmptyInitFun)
#if defined(__clang__)
#define FUZZ_TARGET(...) _Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"") DETAIL_FUZZ(__VA_ARGS__) _Pragma("clang diagnostic pop")
#else
#define FUZZ_TARGET(...) DETAIL_FUZZ(__VA_ARGS__)
#endif
#define FUZZ_TARGET_INIT(name, init_fun) \
FUZZ_TARGET_INIT_HIDDEN(name, init_fun, false)
FUZZ_TARGET(name, .init = init_fun)
#define FUZZ_TARGET_INIT_HIDDEN(name, init_fun, hidden) \
#define DETAIL_FUZZ(name, ...) \
void name##_fuzz_target(FuzzBufferType); \
struct name##_Before_Main { \
name##_Before_Main() \
{ \
FuzzFrameworkRegisterTarget(#name, name##_fuzz_target, init_fun, hidden); \
FuzzFrameworkRegisterTarget(#name, name##_fuzz_target, {__VA_ARGS__}); \
} \
} const static g_##name##_before_main; \
void name##_fuzz_target(FuzzBufferType buffer)