1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
cmake_minimum_required(VERSION 3.0)
# option() honors normal variables.
# see: https://cmake.org/cmake/help/git-stage/policy/CMP0077.html
if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
project(CpuFeatures VERSION 0.6.0 LANGUAGES C)
set(CMAKE_C_STANDARD 99)
# Default Build Type to be Release
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING
"Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
FORCE)
endif(NOT CMAKE_BUILD_TYPE)
# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make
# it prominent in the GUI.
# cpu_features uses bit-fields which are - to some extends - implementation-defined (see https://en.cppreference.com/w/c/language/bit_field).
# As a consequence it is discouraged to use cpu_features as a shared library because different compilers may interpret the code in different ways.
# Prefer static linking from source whenever possible.
option(BUILD_SHARED_LIBS "Build library as shared." OFF)
# Force PIC on unix when building shared libs
# see: https://en.wikipedia.org/wiki/Position-independent_code
if(BUILD_SHARED_LIBS AND UNIX)
option(CMAKE_POSITION_INDEPENDENT_CODE "Build with Position Independant Code." ON)
endif()
include(CheckIncludeFile)
include(CheckSymbolExists)
include(GNUInstallDirs)
macro(setup_include_and_definitions TARGET_NAME)
target_include_directories(${TARGET_NAME}
PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
PRIVATE $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include/internal>
)
target_compile_definitions(${TARGET_NAME}
PUBLIC STACK_LINE_READER_BUFFER_SIZE=1024
)
endmacro()
set(PROCESSOR_IS_MIPS FALSE)
set(PROCESSOR_IS_ARM FALSE)
set(PROCESSOR_IS_AARCH64 FALSE)
set(PROCESSOR_IS_X86 FALSE)
set(PROCESSOR_IS_POWER FALSE)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^mips")
set(PROCESSOR_IS_MIPS TRUE)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64)")
set(PROCESSOR_IS_AARCH64 TRUE)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
set(PROCESSOR_IS_ARM TRUE)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(AMD64|amd64)|(^i.86$)")
set(PROCESSOR_IS_X86 TRUE)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)")
set(PROCESSOR_IS_POWER TRUE)
endif()
macro(add_cpu_features_headers_and_sources HDRS_LIST_NAME SRCS_LIST_NAME)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpu_features_macros.h)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpu_features_cache_info.h)
file(GLOB IMPL_SOURCES CONFIGURE_DEPENDS "${PROJECT_SOURCE_DIR}/src/impl_*.c")
list(APPEND ${SRCS_LIST_NAME} ${IMPL_SOURCES})
if(PROCESSOR_IS_MIPS)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_mips.h)
elseif(PROCESSOR_IS_ARM)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_arm.h)
elseif(PROCESSOR_IS_AARCH64)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_aarch64.h)
elseif(PROCESSOR_IS_X86)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_x86.h)
list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/internal/cpuid_x86.h)
elseif(PROCESSOR_IS_POWER)
list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_ppc.h)
else()
message(FATAL_ERROR "Unsupported architectures ${CMAKE_SYSTEM_PROCESSOR}")
endif()
endmacro()
#
# library : utils
#
add_library(utils OBJECT
${PROJECT_SOURCE_DIR}/include/internal/bit_utils.h
${PROJECT_SOURCE_DIR}/include/internal/filesystem.h
${PROJECT_SOURCE_DIR}/include/internal/stack_line_reader.h
${PROJECT_SOURCE_DIR}/include/internal/string_view.h
${PROJECT_SOURCE_DIR}/src/filesystem.c
${PROJECT_SOURCE_DIR}/src/stack_line_reader.c
${PROJECT_SOURCE_DIR}/src/string_view.c
)
setup_include_and_definitions(utils)
#
# library : unix_based_hardware_detection
#
if(UNIX)
add_library(unix_based_hardware_detection OBJECT
${PROJECT_SOURCE_DIR}/include/internal/hwcaps.h
${PROJECT_SOURCE_DIR}/src/hwcaps.c
)
setup_include_and_definitions(unix_based_hardware_detection)
check_include_file(dlfcn.h HAVE_DLFCN_H)
if(HAVE_DLFCN_H)
target_compile_definitions(unix_based_hardware_detection PRIVATE HAVE_DLFCN_H)
endif()
check_symbol_exists(getauxval "sys/auxv.h" HAVE_STRONG_GETAUXVAL)
if(HAVE_STRONG_GETAUXVAL)
target_compile_definitions(unix_based_hardware_detection PRIVATE HAVE_STRONG_GETAUXVAL)
endif()
endif()
#
# library : cpu_features
#
set (CPU_FEATURES_HDRS)
set (CPU_FEATURES_SRCS)
add_cpu_features_headers_and_sources(CPU_FEATURES_HDRS CPU_FEATURES_SRCS)
list(APPEND CPU_FEATURES_SRCS $<TARGET_OBJECTS:utils>)
if(NOT PROCESSOR_IS_X86 AND UNIX)
list(APPEND CPU_FEATURES_SRCS $<TARGET_OBJECTS:unix_based_hardware_detection>)
endif()
add_library(cpu_features ${CPU_FEATURES_HDRS} ${CPU_FEATURES_SRCS})
set_target_properties(cpu_features PROPERTIES PUBLIC_HEADER "${CPU_FEATURES_HDRS}")
setup_include_and_definitions(cpu_features)
target_link_libraries(cpu_features PUBLIC ${CMAKE_DL_LIBS})
target_include_directories(cpu_features
PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/cpu_features>
)
if(PROCESSOR_IS_X86)
if(APPLE)
target_compile_definitions(cpu_features PRIVATE HAVE_SYSCTLBYNAME)
endif()
endif()
add_library(CpuFeature::cpu_features ALIAS cpu_features)
#
# program : list_cpu_features
#
add_executable(list_cpu_features ${PROJECT_SOURCE_DIR}/src/utils/list_cpu_features.c)
target_link_libraries(list_cpu_features PRIVATE cpu_features)
add_executable(CpuFeature::list_cpu_features ALIAS list_cpu_features)
#
# ndk_compat
#
if(ANDROID)
add_subdirectory(ndk_compat)
endif()
#
# tests
#
include(CTest)
if(BUILD_TESTING)
# Automatically incorporate googletest into the CMake Project if target not
# found.
enable_language(CXX)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF) # prefer use of -std11 instead of -gnustd11
if(NOT TARGET gtest OR NOT TARGET gmock_main)
# Download and unpack googletest at configure time.
configure_file(
cmake/googletest.CMakeLists.txt.in
googletest-download/CMakeLists.txt
)
execute_process(
COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
RESULT_VARIABLE result
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
if(result)
message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif()
execute_process(
COMMAND ${CMAKE_COMMAND} --build .
RESULT_VARIABLE result
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
if(result)
message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif()
# Prevent overriding the parent project's compiler/linker settings on
# Windows.
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
# Add googletest directly to our build. This defines the gtest and
# gtest_main targets.
add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
${CMAKE_BINARY_DIR}/googletest-build
EXCLUDE_FROM_ALL)
endif()
add_subdirectory(test)
endif()
#
# Install cpu_features and list_cpu_features
#
include(GNUInstallDirs)
install(TARGETS cpu_features list_cpu_features
EXPORT CpuFeaturesTargets
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/cpu_features
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
BUNDLE DESTINATION ${CMAKE_INSTALL_BINDIR}
)
install(EXPORT CpuFeaturesTargets
NAMESPACE CpuFeatures::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures
COMPONENT Devel
)
include(CMakePackageConfigHelpers)
configure_package_config_file(cmake/CpuFeaturesConfig.cmake.in
"${PROJECT_BINARY_DIR}/CpuFeaturesConfig.cmake"
INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures"
NO_SET_AND_CHECK_MACRO
NO_CHECK_REQUIRED_COMPONENTS_MACRO
)
write_basic_package_version_file(
"${PROJECT_BINARY_DIR}/CpuFeaturesConfigVersion.cmake"
COMPATIBILITY SameMajorVersion
)
install(
FILES
"${PROJECT_BINARY_DIR}/CpuFeaturesConfig.cmake"
"${PROJECT_BINARY_DIR}/CpuFeaturesConfigVersion.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures"
COMPONENT Devel
)
|
