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authorvan Hauser <vh@thc.org>2019-07-25 11:18:14 +0200
committervan Hauser <vh@thc.org>2019-07-25 11:18:14 +0200
commitce842648ae0462f339625ab395a9d71a9ecd319d (patch)
tree21d36b0c95e84382cbeaee4ce6f61d82429446cb
parentad1c4bf202fd3cc9d567d903f7bfe998fa8d7a57 (diff)
downloadafl++-ce842648ae0462f339625ab395a9d71a9ecd319d.tar.gz
afl_trace_pc fix
-rw-r--r--docs/ChangeLog1
-rw-r--r--llvm_mode/afl-clang-fast.c7
2 files changed, 5 insertions, 3 deletions
diff --git a/docs/ChangeLog b/docs/ChangeLog
index 3b43366d..09ad77ec 100644
--- a/docs/ChangeLog
+++ b/docs/ChangeLog
@@ -18,6 +18,7 @@ Version ++2.52d (dev):
 -----------------------------
 
   - unicorn_mode got added - thanks to domenukk for the patch!
+  - fix llvm_mode AFL_TRACE_PC with modern llvm
   - fix a crash in qemu_mode which also exists in stock afl
   - added libcompcov, a laf-intel implementation for qemu! :)
     see qemu_mode/libcompcov/README.libcompcov
diff --git a/llvm_mode/afl-clang-fast.c b/llvm_mode/afl-clang-fast.c
index 19bad86c..a4bb7539 100644
--- a/llvm_mode/afl-clang-fast.c
+++ b/llvm_mode/afl-clang-fast.c
@@ -144,9 +144,10 @@ static void edit_params(u32 argc, char** argv) {
   // /laf
 
 #ifdef USE_TRACE_PC
-  cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
-  cc_params[cc_par_cnt++] = "-mllvm";
-  cc_params[cc_par_cnt++] = "-sanitizer-coverage-block-threshold=0";
+  cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard"; // edge coverage by default
+  //cc_params[cc_par_cnt++] = "-mllvm";
+  //cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-cmp,trace-div,trace-gep";
+  //cc_params[cc_par_cnt++] = "-sanitizer-coverage-block-threshold=0";
 #else
   cc_params[cc_par_cnt++] = "-Xclang";
   cc_params[cc_par_cnt++] = "-load";