cmark

My personal build of CMark ✏️

FindAsan.cmake (3226B)

 1 #
 2 # The MIT License (MIT)
 3 #
 4 # Copyright (c) 2013 Matthew Arsenault
 5 #
 6 # Permission is hereby granted, free of charge, to any person obtaining a copy
 7 # of this software and associated documentation files (the "Software"), to deal
 8 # in the Software without restriction, including without limitation the rights
 9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 # copies of the Software, and to permit persons to whom the Software is
11 # furnished to do so, subject to the following conditions:
12 #
13 # The above copyright notice and this permission notice shall be included in
14 # all copies or substantial portions of the Software.
15 #
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 # THE SOFTWARE.
23 #
24 # This module tests if address sanitizer is supported by the compiler,
25 # and creates a ASan build type (i.e. set CMAKE_BUILD_TYPE=ASan to use
26 # it). This sets the following variables:
27 #
28 # CMAKE_C_FLAGS_ASAN - Flags to use for C with asan
29 # CMAKE_CXX_FLAGS_ASAN  - Flags to use for C++ with asan
30 # HAVE_ADDRESS_SANITIZER - True or false if the ASan build type is available
31 
32 include(CheckCCompilerFlag)
33 
34 # Set -Werror to catch "argument unused during compilation" warnings
35 set(CMAKE_REQUIRED_FLAGS "-Werror -faddress-sanitizer") # Also needs to be a link flag for test to pass
36 check_c_compiler_flag("-faddress-sanitizer" HAVE_FLAG_ADDRESS_SANITIZER)
37 
38 set(CMAKE_REQUIRED_FLAGS "-Werror -fsanitize=address") # Also needs to be a link flag for test to pass
39 check_c_compiler_flag("-fsanitize=address" HAVE_FLAG_SANITIZE_ADDRESS)
40 
41 unset(CMAKE_REQUIRED_FLAGS)
42 
43 if(HAVE_FLAG_SANITIZE_ADDRESS)
44   # Clang 3.2+ use this version
45   set(ADDRESS_SANITIZER_FLAG "-fsanitize=address")
46 elseif(HAVE_FLAG_ADDRESS_SANITIZER)
47   # Older deprecated flag for ASan
48   set(ADDRESS_SANITIZER_FLAG "-faddress-sanitizer")
49 endif()
50 
51 if(NOT ADDRESS_SANITIZER_FLAG)
52   return()
53 else(NOT ADDRESS_SANITIZER_FLAG)
54   set(HAVE_ADDRESS_SANITIZER FALSE)
55 endif()
56 
57 set(HAVE_ADDRESS_SANITIZER TRUE)
58 
59 set(CMAKE_C_FLAGS_ASAN "-O1 -g ${ADDRESS_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls"
60     CACHE STRING "Flags used by the C compiler during ASan builds."
61     FORCE)
62 set(CMAKE_CXX_FLAGS_ASAN "-O1 -g ${ADDRESS_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls"
63     CACHE STRING "Flags used by the C++ compiler during ASan builds."
64     FORCE)
65 set(CMAKE_EXE_LINKER_FLAGS_ASAN "${ADDRESS_SANITIZER_FLAG}"
66     CACHE STRING "Flags used for linking binaries during ASan builds."
67     FORCE)
68 set(CMAKE_SHARED_LINKER_FLAGS_ASAN "${ADDRESS_SANITIZER_FLAG}"
69     CACHE STRING "Flags used by the shared libraries linker during ASan builds."
70     FORCE)
71 mark_as_advanced(CMAKE_C_FLAGS_ASAN
72                  CMAKE_CXX_FLAGS_ASAN
73                  CMAKE_EXE_LINKER_FLAGS_ASAN
74                  CMAKE_SHARED_LINKER_FLAGS_ASAN)