commit 195a14124c1e94667c56af693a2ef471504dfb87
author glider <glider> Thu Aug 10 14:01:45 2017
committer glider <glider> Thu Aug 10 14:01:45 2017
tree 42f8fd197766a15aab846ea12e8e712be5101209
parent 6d39c6ba7f52b61664c982d6ac89d7491b6f8730

[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: svn://svn.chromium.org/llvm-project/llvm/trunk/lib/Fuzzer@310592 0b72dbe1-c17f-4bc7-b9db-2b4152be0356

FuzzerTracePC.cpp

diff --git a/FuzzerTracePC.cpp b/FuzzerTracePC.cpp
index a83289f..d038374 100644
--- a/FuzzerTracePC.cpp
+++ b/FuzzerTracePC.cpp
@@ -390,6 +390,17 @@
 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
 void __sanitizer_cov_trace_cmp4(uint32_t Arg1, uint32_t Arg2) {
   uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
@@ -398,6 +409,14 @@
 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
 void __sanitizer_cov_trace_cmp2(uint16_t Arg1, uint16_t Arg2) {
   uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
@@ -406,6 +425,14 @@
 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
 void __sanitizer_cov_trace_cmp1(uint8_t Arg1, uint8_t Arg2) {
   uintptr_t PC = reinterpret_cast<uintptr_t>(__builtin_return_address(0));
   fuzzer::TPC.HandleCmp(PC, Arg1, Arg2);
@@ -414,6 +441,14 @@
 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
 void __sanitizer_cov_trace_switch(uint64_t Val, uint64_t *Cases) {
   uint64_t N = Cases[0];
   uint64_t ValSizeInBits = Cases[1];