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Commit | Line | Data |
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9f95a23c TL |
1 | if(CMAKE_CXX_COMPILER_ID STREQUAL GNU) |
2 | if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7) | |
3 | message(FATAL_ERROR "GCC 7+ required due to C++17 requirements") | |
4 | endif() | |
5 | endif() | |
6 | ||
7 | #Check Includes | |
8 | include(CheckIncludeFiles) | |
9 | include(CheckIncludeFileCXX) | |
10 | include(CheckFunctionExists) | |
11 | ||
12 | check_function_exists(fallocate CEPH_HAVE_FALLOCATE) | |
13 | check_function_exists(posix_fadvise HAVE_POSIX_FADVISE) | |
14 | check_function_exists(posix_fallocate HAVE_POSIX_FALLOCATE) | |
15 | check_function_exists(syncfs HAVE_SYS_SYNCFS) | |
16 | check_function_exists(sync_file_range HAVE_SYNC_FILE_RANGE) | |
17 | check_function_exists(pwritev HAVE_PWRITEV) | |
18 | check_function_exists(splice CEPH_HAVE_SPLICE) | |
19 | check_function_exists(getgrouplist HAVE_GETGROUPLIST) | |
20 | if(NOT APPLE) | |
21 | check_function_exists(fdatasync HAVE_FDATASYNC) | |
22 | endif() | |
23 | check_function_exists(strerror_r HAVE_Strerror_R) | |
24 | check_function_exists(name_to_handle_at HAVE_NAME_TO_HANDLE_AT) | |
25 | check_function_exists(pipe2 HAVE_PIPE2) | |
26 | check_function_exists(accept4 HAVE_ACCEPT4) | |
adb31ebb | 27 | check_function_exists(sigdescr_np HAVE_SIGDESCR_NP) |
9f95a23c TL |
28 | |
29 | include(CMakePushCheckState) | |
30 | cmake_push_check_state(RESET) | |
31 | set(CMAKE_REQUIRED_LIBRARIES pthread) | |
32 | check_function_exists(pthread_spin_init HAVE_PTHREAD_SPINLOCK) | |
33 | check_function_exists(pthread_set_name_np HAVE_PTHREAD_SET_NAME_NP) | |
34 | check_function_exists(pthread_get_name_np HAVE_PTHREAD_GET_NAME_NP) | |
35 | check_function_exists(pthread_setname_np HAVE_PTHREAD_SETNAME_NP) | |
36 | check_function_exists(pthread_getname_np HAVE_PTHREAD_GETNAME_NP) | |
37 | check_function_exists(pthread_rwlockattr_setkind_np HAVE_PTHREAD_RWLOCKATTR_SETKIND_NP) | |
38 | cmake_pop_check_state() | |
39 | ||
40 | check_function_exists(eventfd HAVE_EVENTFD) | |
41 | check_function_exists(getprogname HAVE_GETPROGNAME) | |
42 | check_function_exists(gettid HAVE_GETTID) | |
43 | ||
44 | CHECK_INCLUDE_FILES("linux/types.h" HAVE_LINUX_TYPES_H) | |
45 | CHECK_INCLUDE_FILES("linux/version.h" HAVE_LINUX_VERSION_H) | |
46 | CHECK_INCLUDE_FILES("arpa/nameser_compat.h" HAVE_ARPA_NAMESER_COMPAT_H) | |
47 | CHECK_INCLUDE_FILES("sys/mount.h" HAVE_SYS_MOUNT_H) | |
48 | CHECK_INCLUDE_FILES("sys/param.h" HAVE_SYS_PARAM_H) | |
49 | CHECK_INCLUDE_FILES("sys/types.h" HAVE_SYS_TYPES_H) | |
50 | CHECK_INCLUDE_FILES("sys/vfs.h" HAVE_SYS_VFS_H) | |
51 | CHECK_INCLUDE_FILES("sys/prctl.h" HAVE_SYS_PRCTL_H) | |
52 | CHECK_INCLUDE_FILES("execinfo.h" HAVE_EXECINFO_H) | |
53 | if(LINUX) | |
54 | CHECK_INCLUDE_FILES("sched.h" HAVE_SCHED) | |
55 | endif() | |
56 | CHECK_INCLUDE_FILES("valgrind/helgrind.h" HAVE_VALGRIND_HELGRIND_H) | |
57 | ||
58 | include(CheckTypeSize) | |
59 | set(CMAKE_EXTRA_INCLUDE_FILES "linux/types.h") | |
60 | CHECK_TYPE_SIZE(__u8 __U8) | |
61 | CHECK_TYPE_SIZE(__u16 __U16) | |
62 | CHECK_TYPE_SIZE(__u32 __U32) | |
63 | CHECK_TYPE_SIZE(__u64 __U64) | |
64 | CHECK_TYPE_SIZE(__s8 __S8) | |
65 | CHECK_TYPE_SIZE(__s16 __S16) | |
66 | CHECK_TYPE_SIZE(__s32 __S32) | |
67 | CHECK_TYPE_SIZE(__s64 __S64) | |
68 | unset(CMAKE_EXTRA_INCLUDE_FILES) | |
69 | ||
70 | include(CheckSymbolExists) | |
71 | cmake_push_check_state(RESET) | |
72 | set(CMAKE_REQUIRED_LIBRARIES rt) | |
73 | check_symbol_exists(_POSIX_TIMERS "unistd.h;time.h" HAVE_POSIX_TIMERS) | |
74 | cmake_pop_check_state() | |
75 | if(HAVE_POSIX_TIMERS) | |
76 | find_library(RT_LIBRARY NAMES rt) | |
77 | endif() | |
78 | check_symbol_exists(res_nquery "resolv.h" HAVE_RES_NQUERY) | |
79 | check_symbol_exists(F_SETPIPE_SZ "linux/fcntl.h" CEPH_HAVE_SETPIPE_SZ) | |
80 | check_symbol_exists(__func__ "" HAVE_FUNC) | |
81 | check_symbol_exists(__PRETTY_FUNCTION__ "" HAVE_PRETTY_FUNC) | |
82 | check_symbol_exists(getentropy "unistd.h" HAVE_GETENTROPY) | |
83 | ||
84 | include(CheckCXXSourceCompiles) | |
85 | check_cxx_source_compiles(" | |
86 | #include <string.h> | |
87 | int main() { char x = *strerror_r(0, &x, sizeof(x)); return 0; } | |
88 | " STRERROR_R_CHAR_P) | |
89 | ||
90 | include(CheckStructHasMember) | |
91 | CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h | |
92 | HAVE_STAT_ST_MTIM_TV_NSEC LANGUAGE C) | |
93 | CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec sys/stat.h | |
94 | HAVE_STAT_ST_MTIMESPEC_TV_NSEC LANGUAGE C) | |
95 | ||
96 | if(NOT CMAKE_CROSSCOMPILING) | |
97 | include(CheckCXXSourceRuns) | |
98 | cmake_push_check_state() | |
99 | set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++17") | |
100 | if(WIN32) | |
101 | set(CMAKE_REQUIRED_LIBRARIES ws2_32) | |
102 | endif() | |
103 | ||
104 | check_cxx_source_runs(" | |
105 | #include <cstdint> | |
106 | #include <iterator> | |
107 | ||
108 | #ifdef _WIN32 | |
109 | #include <winsock2.h> | |
110 | #else | |
111 | #include <arpa/inet.h> | |
112 | #endif | |
113 | ||
114 | uint32_t load(char* p, size_t offset) | |
115 | { | |
116 | return *reinterpret_cast<uint32_t*>(p + offset); | |
117 | } | |
118 | ||
119 | bool good(uint32_t lhs, uint32_t big_endian) | |
120 | { | |
121 | return lhs == ntohl(big_endian); | |
122 | } | |
123 | ||
124 | int main(int argc, char **argv) | |
125 | { | |
126 | char a1[] = \"ABCDEFG\"; | |
127 | uint32_t a2[] = {0x41424344, | |
128 | 0x42434445, | |
129 | 0x43444546, | |
130 | 0x44454647}; | |
131 | for (size_t i = 0; i < std::size(a2); i++) { | |
132 | if (!good(load(a1, i), a2[i])) { | |
133 | return 1; | |
134 | } | |
135 | } | |
136 | }" | |
137 | HAVE_UNALIGNED_ACCESS) | |
138 | cmake_pop_check_state() | |
139 | if(NOT HAVE_UNALIGNED_ACCESS) | |
140 | message(FATAL_ERROR "Unaligned access is required") | |
141 | endif() | |
142 | else(NOT CMAKE_CROSSCOMPILING) | |
143 | message(STATUS "Assuming unaligned access is supported") | |
144 | endif(NOT CMAKE_CROSSCOMPILING) | |
145 | ||
146 | # should use LINK_OPTIONS instead of LINK_LIBRARIES, if we can use cmake v3.14+ | |
147 | try_compile(HAVE_LINK_VERSION_SCRIPT | |
148 | ${CMAKE_CURRENT_BINARY_DIR} | |
149 | SOURCES ${CMAKE_CURRENT_LIST_DIR}/CephCheck_link.c | |
150 | LINK_LIBRARIES "-Wl,--version-script=${CMAKE_CURRENT_LIST_DIR}/CephCheck_link.map") | |
151 | ||
152 | try_compile(HAVE_LINK_EXCLUDE_LIBS | |
153 | ${CMAKE_CURRENT_BINARY_DIR} | |
154 | SOURCES ${CMAKE_CURRENT_LIST_DIR}/CephCheck_link.c | |
155 | LINK_LIBRARIES "-Wl,--exclude-libs,ALL") |