[PATCH] Add api_list entries for the dfsan-based fuzzer

[Kostya Serebryany]

Hi pcc,

Add api_list entries for the dfsan-based fuzzer

http://reviews.llvm.org/D9538

Files:
  lib/dfsan/done_abilist.txt
  lib/dfsan/scripts/check_custom_wrappers.sh

Index: lib/dfsan/done_abilist.txt
===================================================================
--- lib/dfsan/done_abilist.txt
+++ lib/dfsan/done_abilist.txt
@@ -258,3 +258,20 @@
 fun:reflect.MakeFuncStubGo=discard
 fun:reflect.makeFuncStub=uninstrumented
 fun:reflect.makeFuncStub=discard
+
+
+###############################################################################
+# lib/Fuzzer
+###############################################################################
+# Replaces __sanitizer_cov_trace_cmp with __dfsw___sanitizer_cov_trace_cmp
+fun:__sanitizer_cov_trace_cmp=custom
+fun:__sanitizer_cov_trace_cmp=uninstrumented
+
+# Ignores coverage callbacks.
+fun:__sanitizer_cov=uninstrumented
+fun:__sanitizer_cov=discard
+fun:__sanitizer_cov_module_init=uninstrumented
+fun:__sanitizer_cov_module_init=discard
+
+# Don't add extra parameters to the Fuzzer callback.
+fun:LLVMFuzzerTestOneInput=uninstrumented
Index: lib/dfsan/scripts/check_custom_wrappers.sh
===================================================================
--- lib/dfsan/scripts/check_custom_wrappers.sh
+++ lib/dfsan/scripts/check_custom_wrappers.sh
@@ -17,9 +17,10 @@
   rm -f ${DIFF_B} 2> /dev/null
 }
 
+# Ignore __sanitizer_cov_trace* because they are implemented elsewhere.
 trap on_exit EXIT
 grep -E "^fun:.*=custom" ${DFSAN_ABI_LIST} | grep -v "dfsan_get_label" \
-  | sed "s/^fun:\(.*\)=custom.*/\1/" | sort > $DIFF_A
+  | sed "s/^fun:\(.*\)=custom.*/\1/" | grep -v __sanitizer_cov_trace | sort > $DIFF_A
 grep -E "__dfsw.*\(" ${DFSAN_CUSTOM_WRAPPERS} \
   | sed "s/.*__dfsw_\(.*\)(.*/\1/" | sort > $DIFF_B
 diff -u $DIFF_A $DIFF_B > ${DIFFOUT}

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