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[Sanitizers] Always build libFuzzer with frame pointers. 

Lacking frame pointers, sanitized fuzzers collect bogus stack
traces and the set of stack traces grows indefinitely, leading to OOMs.

llvm-svn: 315770
This commit is contained in:
Alex Shlyapnikov 2017-10-13 21:57:43 +00:00
parent a7e5c84590
commit 29d3ba7576
1 changed files with 2 additions and 0 deletions
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2
compiler-rt/lib/fuzzer/CMakeLists.txt
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@ -32,6 +32,8 @@ CHECK_CXX_SOURCE_COMPILES("
set(LIBFUZZER_CFLAGS ${SANITIZER_COMMON_CFLAGS}) set(LIBFUZZER_CFLAGS ${SANITIZER_COMMON_CFLAGS})
append_list_if(COMPILER_RT_HAS_OMIT_FRAME_POINTER_FLAG -fno-omit-frame-pointer LIBFUZZER_CFLAGS)
if (CMAKE_CXX_FLAGS MATCHES "fsanitize-coverage") if (CMAKE_CXX_FLAGS MATCHES "fsanitize-coverage")
list(APPEND LIBFUZZER_CFLAGS -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters) list(APPEND LIBFUZZER_CFLAGS -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters)
endif() endif()