[llvm] r315629 - [cmake] Allow building fuzzers with OSS-Fuzz flags.

[Matt Morehouse via llvm-commits]

Author: morehouse
Date: Thu Oct 12 14:58:41 2017
New Revision: 315629

URL: http://llvm.org/viewvc/llvm-project?rev=315629&view=rev
Log:
[cmake] Allow building fuzzers with OSS-Fuzz flags.

Reviewers: kcc, bogner

Reviewed By: bogner

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D38858

Modified:
    llvm/trunk/CMakeLists.txt
    llvm/trunk/cmake/modules/AddLLVM.cmake

Modified: llvm/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/CMakeLists.txt?rev=315629&r1=315628&r2=315629&view=diff
==============================================================================
--- llvm/trunk/CMakeLists.txt (original)
+++ llvm/trunk/CMakeLists.txt Thu Oct 12 14:58:41 2017
@@ -435,6 +435,8 @@ endif( LLVM_USE_OPROFILE )
 
 set(LLVM_USE_SANITIZER "" CACHE STRING
   "Define the sanitizer used to build binaries and tests.")
+set(LLVM_LIB_FUZZING_ENGINE "" CACHE PATH
+  "Path to fuzzing library for linking with fuzz targets")
 
 option(LLVM_USE_SPLIT_DWARF
   "Use -gsplit-dwarf when compiling llvm." OFF)

Modified: llvm/trunk/cmake/modules/AddLLVM.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/AddLLVM.cmake?rev=315629&r1=315628&r2=315629&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/AddLLVM.cmake (original)
+++ llvm/trunk/cmake/modules/AddLLVM.cmake Thu Oct 12 14:58:41 2017
@@ -894,7 +894,12 @@ endmacro(add_llvm_utility name)
 
 macro(add_llvm_fuzzer name)
   cmake_parse_arguments(ARG "" "DUMMY_MAIN" "" ${ARGN})
-  if( LLVM_USE_SANITIZE_COVERAGE )
+  if( LLVM_LIB_FUZZING_ENGINE )
+    set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
+    add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
+    target_link_libraries(${name} ${LLVM_LIB_FUZZING_ENGINE})
+    set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
+  elseif( LLVM_USE_SANITIZE_COVERAGE )
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")
     set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
     add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
@@ -902,7 +907,7 @@ macro(add_llvm_fuzzer name)
   elseif( ARG_DUMMY_MAIN )
     add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS})
     set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
-endif()
+  endif()
 endmacro()
 
 macro(add_llvm_target target_name)