[libFuzzer] Update LibFuzzer w.r.t. the new comparisons instrumentation API

Added the _sanitizer_cov_trace_const_cmp[1248] callbacks.
For now they are implemented the same way as _sanitizer_cov_trace_cmp[1248].
For more details, please see https://reviews.llvm.org/D36465.

Patch by Victor Chibotaru.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310592 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Fuzzer/FuzzerTracePC.cpp b/lib/Fuzzer/FuzzerTracePC.cpp
index a83289fd44cc43e6e6c683a6716bf0eca7d07802..d038374dc437b0383016d5fca33316404fdd84f5 100644 (file)
--- a/lib/Fuzzer/FuzzerTracePC.cpp
+++ b/lib/Fuzzer/FuzzerTracePC.cpp
@@ -387,6 +387,17 @@ void __sanitizer_cov_trace_cmp8(uint64_t Arg1, uint64_t Arg2) {
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
 }
 
+ATTRIBUTE_INTERFACE
+ATTRIBUTE_NO_SANITIZE_ALL
+ATTRIBUTE_TARGET_POPCNT
+// Now the __sanitizer_cov_trace_const_cmp[1248] callbacks just mimic
+// the behaviour of __sanitizer_cov_trace_cmp[1248] ones. This, however,
+// should be changed later to make full use of instrumentation.
+void __sanitizer_cov_trace_const_cmp8(uint64_t Arg1, uint64_t Arg2) {
+  uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
+  fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
+}
+
 ATTRIBUTE_INTERFACE
 ATTRIBUTE_NO_SANITIZE_ALL
 ATTRIBUTE_TARGET_POPCNT
@@ -395,6 +406,14 @@ void __sanitizer_cov_trace_cmp4(uint32_t Arg1, uint32_t Arg2) {
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
 }
 
+ATTRIBUTE_INTERFACE
+ATTRIBUTE_NO_SANITIZE_ALL
+ATTRIBUTE_TARGET_POPCNT
+void __sanitizer_cov_trace_const_cmp4(uint32_t Arg1, uint32_t Arg2) {
+  uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
+  fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
+}
+
 ATTRIBUTE_INTERFACE
 ATTRIBUTE_NO_SANITIZE_ALL
 ATTRIBUTE_TARGET_POPCNT
@@ -403,6 +422,14 @@ void __sanitizer_cov_trace_cmp2(uint16_t Arg1, uint16_t Arg2) {
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
 }
 
+ATTRIBUTE_INTERFACE
+ATTRIBUTE_NO_SANITIZE_ALL
+ATTRIBUTE_TARGET_POPCNT
+void __sanitizer_cov_trace_const_cmp2(uint16_t Arg1, uint16_t Arg2) {
+  uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
+  fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
+}
+
 ATTRIBUTE_INTERFACE
 ATTRIBUTE_NO_SANITIZE_ALL
 ATTRIBUTE_TARGET_POPCNT
@@ -411,6 +438,14 @@ void __sanitizer_cov_trace_cmp1(uint8_t Arg1, uint8_t Arg2) {
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
 }
 
+ATTRIBUTE_INTERFACE
+ATTRIBUTE_NO_SANITIZE_ALL
+ATTRIBUTE_TARGET_POPCNT
+void __sanitizer_cov_trace_const_cmp1(uint8_t Arg1, uint8_t Arg2) {
+  uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
+  fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
+}
+
 ATTRIBUTE_INTERFACE
 ATTRIBUTE_NO_SANITIZE_ALL
 ATTRIBUTE_TARGET_POPCNT