CMakeLists.txt revision 5392f7a3 
1# Copyright (c) 2017 - 2019 LiteSpeed Technologies Inc.  See LICENSE.
2cmake_minimum_required(VERSION 2.8)
3
4
5PROJECT(lsquic C)
6
7IF (CMAKE_SYSTEM_NAME STREQUAL "Linux")
8    # If using older glibc, need to link with -lrt.  See clock_getres(2).
9    EXECUTE_PROCESS(
10        COMMAND ${PROJECT_SOURCE_DIR}/print-glibc-version.sh ${CMAKE_C_COMPILER}
11        OUTPUT_VARIABLE GLIBC_VERSION)
12    IF(NOT GLIBC_VERSION EQUAL "" AND GLIBC_VERSION VERSION_LESS 2.17)
13        SET(LIBS ${LIBS} rt)
14    ENDIF()
15ENDIF()
16
17IF("${CMAKE_BUILD_TYPE}" STREQUAL "")
18    SET(CMAKE_BUILD_TYPE Debug)
19ENDIF()
20
21MESSAGE(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
22
23
24IF (NOT MSVC)
25
26SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Wall -Wextra -Wno-unused-parameter")
27SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -fno-omit-frame-pointer")
28INCLUDE(CheckCCompilerFlag)
29CHECK_C_COMPILER_FLAG(-Wno-implicit-fallthrough HAS_NO_IMPLICIT_FALLTHROUGH)
30IF (HAS_NO_IMPLICIT_FALLTHROUGH)
31    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Wno-implicit-fallthrough")
32ENDIF()
33
34IF(CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9.3)
35    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Wno-missing-field-initializers")
36ENDIF()
37
38IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
39    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -O0 -g3")
40    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Werror")
41    IF(CMAKE_C_COMPILER MATCHES "clang" AND
42                        NOT "$ENV{TRAVIS}" MATCHES "^true$")
43        SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -fsanitize=address")
44    ENDIF()
45    # Uncomment to enable fault injection testing via libfiu:
46    #SET (MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -DFIU_ENABLE=1")
47    # Uncomment to enable cleartext protocol mode (no crypto):
48    #SET (MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -DLSQUIC_ENABLE_HANDSHAKE_DISABLE=1")
49    #SET(LIBS ${LIBS} fiu)
50ELSE()
51    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -O3 -g0")
52    # Comment out the following line to compile out debug messages:
53    #SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -DLSQUIC_LOWEST_LOG_LEVEL=LSQ_LOG_INFO")
54ENDIF()
55
56IF(LSQUIC_PROFILE EQUAL 1)
57    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -g -pg")
58ENDIF()
59
60IF(LSQUIC_COVERAGE EQUAL 1)
61    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -fprofile-arcs -ftest-coverage")
62ENDIF()
63
64IF(MY_CMAKE_FLAGS MATCHES "fsanitize=address")
65    MESSAGE(STATUS "AddressSanitizer is ON")
66ELSE()
67    MESSAGE(STATUS "AddressSanitizer is OFF")
68ENDIF()
69
70#MSVC
71ELSE()
72SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} /wd4214")	# nonstandard extension used: bit field types other than int
73SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -W4 -WX -Zi -DWIN32_LEAN_AND_MEAN -DNOMINMAX -D_CRT_SECURE_NO_WARNINGS -I${CMAKE_CURRENT_SOURCE_DIR}/wincompat")
74IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
75    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Od")
76    #SET (MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -DFIU_ENABLE=1")
77    #SET(LIBS ${LIBS} fiu)
78ELSE()
79    SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -Ox")
80    # Comment out the following line to compile out debug messages:
81    #SET(MY_CMAKE_FLAGS "${MY_CMAKE_FLAGS} -DLSQUIC_LOWEST_LOG_LEVEL=LSQ_LOG_INFO")
82ENDIF()
83
84ENDIF() #MSVC
85
86set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  ${MY_CMAKE_FLAGS} $ENV{EXTRA_CFLAGS}")
87
88MESSAGE(STATUS "Compiler flags: ${CMAKE_C_FLAGS}")
89
90IF (NOT DEFINED BORINGSSL_INCLUDE AND DEFINED BORINGSSL_DIR)
91    FIND_PATH(BORINGSSL_INCLUDE NAMES openssl/ssl.h
92                PATHS ${BORINGSSL_DIR}/include
93                NO_DEFAULT_PATH)
94ENDIF()
95# This must be done before adding other include directories to take
96# precedence over header files from other SSL installs.
97
98IF (BORINGSSL_INCLUDE)
99    MESSAGE(STATUS "BoringSSL include directory ${BORINGSSL_INCLUDE}")
100    INCLUDE_DIRECTORIES(${BORINGSSL_INCLUDE})
101ELSE()
102    MESSAGE(FATAL_ERROR "BoringSSL headers not found")
103ENDIF()
104
105IF (NOT DEFINED BORINGSSL_LIB AND DEFINED BORINGSSL_DIR)
106    FOREACH(LIB_NAME ssl crypto decrepit)
107        IF (CMAKE_SYSTEM_NAME STREQUAL Windows)
108            FIND_LIBRARY(BORINGSSL_LIB_${LIB_NAME}
109                NAMES ${LIB_NAME}
110                PATHS ${BORINGSSL_DIR}/${LIB_NAME}
111                PATH_SUFFIXES Debug Release MinSizeRel RelWithDebInfo
112                NO_DEFAULT_PATH)
113        ELSE()
114            FIND_LIBRARY(BORINGSSL_LIB_${LIB_NAME}
115                NAMES lib${LIB_NAME}.a
116                PATHS ${BORINGSSL_DIR}/${LIB_NAME}
117                NO_DEFAULT_PATH)
118        ENDIF()
119        IF(BORINGSSL_LIB_${LIB_NAME})
120            MESSAGE(STATUS "Found ${LIB_NAME} library: ${BORINGSSL_LIB_${LIB_NAME}}")
121        ELSE()
122            MESSAGE(STATUS "${LIB_NAME} library not found")
123        ENDIF()
124    ENDFOREACH()
125
126ELSE()
127
128
129    FOREACH(LIB_NAME ssl crypto decrepit)
130        IF (CMAKE_SYSTEM_NAME STREQUAL Windows)
131            FIND_LIBRARY(BORINGSSL_LIB_${LIB_NAME}
132                NAMES ${LIB_NAME}
133                PATHS ${BORINGSSL_LIB}
134                PATH_SUFFIXES Debug Release MinSizeRel RelWithDebInfo
135                NO_DEFAULT_PATH)
136        ELSE()
137            FIND_LIBRARY(BORINGSSL_LIB_${LIB_NAME}
138                NAMES lib${LIB_NAME}.a
139                PATHS ${BORINGSSL_LIB}
140                NO_DEFAULT_PATH)
141        ENDIF()
142        IF(BORINGSSL_LIB_${LIB_NAME})
143            MESSAGE(STATUS "Found ${BORINGSSL_LIB} library: ${BORINGSSL_LIB_${LIB_NAME}}")
144        ELSE()
145            MESSAGE(STATUS "${BORINGSSL_LIB} library not found")
146        ENDIF()
147    ENDFOREACH()
148#endif
149
150ENDIF()
151
152SET(CMAKE_INCLUDE_CURRENT_DIR ON)
153INCLUDE_DIRECTORIES(include src/lshpack)
154IF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
155    # Find libevent on FreeBSD:
156    include_directories( /usr/local/include )
157    link_directories( /usr/local/lib )
158ENDIF()
159
160# Find zlib and libevent header files and library files
161# TODO: libevent is not strictly necessary to build the library.
162FIND_PATH(ZLIB_INCLUDE_DIR NAMES zlib.h)
163IF (ZLIB_INCLUDE_DIR)
164    INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
165ELSE()
166    MESSAGE(FATAL_ERROR "zlib.h was not found")
167ENDIF()
168IF (CMAKE_SYSTEM_NAME STREQUAL Windows)
169    FIND_LIBRARY(ZLIB_LIB zlib)
170ELSEIF(CMAKE_SYSTEM_NAME STREQUAL Darwin)
171    # XXX somehow FIND_LIBRARY() does not find zlib on Travis?
172    SET(ZLIB_LIB z)
173ELSE()
174    FIND_LIBRARY(ZLIB_LIB libz.a)
175ENDIF()
176IF(ZLIB_LIB)
177    MESSAGE(STATUS "Found zlib: ${ZLIB_LIB}")
178ELSE()
179    MESSAGE(STATUS "zlib not found")
180ENDIF()
181FIND_PATH(EVENT_INCLUDE_DIR NAMES event2/event.h)
182IF (EVENT_INCLUDE_DIR)
183    INCLUDE_DIRECTORIES(${EVENT_INCLUDE_DIR})
184ELSE()
185    MESSAGE(FATAL_ERROR "event2/event.h was not found")
186ENDIF()
187IF (CMAKE_SYSTEM_NAME STREQUAL Windows)
188    FIND_LIBRARY(EVENT_LIB event)
189ELSE()
190    FIND_LIBRARY(EVENT_LIB libevent.a)
191ENDIF()
192IF(EVENT_LIB)
193    MESSAGE(STATUS "Found event: ${EVENT_LIB}")
194ELSE()
195    MESSAGE(STATUS "libevent not found")
196ENDIF()
197
198add_executable(http_server test/http_server.c test/prog.c test/test_common.c test/test_cert.c)
199
200
201SET(LIBS lsquic ${EVENT_LIB} ${BORINGSSL_LIB_ssl} ${BORINGSSL_LIB_crypto} ${ZLIB_LIB} ${LIBS})
202
203IF (NOT MSVC)
204
205add_executable(http_client
206    test/http_client.c
207    test/prog.c
208    test/test_common.c
209    test/test_cert.c
210)
211LIST(APPEND LIBS pthread m)
212
213#MSVC
214ELSE()
215
216add_executable(http_client
217    test/http_client.c
218    test/prog.c
219    test/test_common.c
220    wincompat/getopt.c
221    wincompat/getopt1.c
222)
223LIST(APPEND LIBS ws2_32)
224
225ENDIF()
226
227TARGET_LINK_LIBRARIES(http_client ${LIBS})
228TARGET_LINK_LIBRARIES(http_server ${LIBS})
229
230add_subdirectory(src)
231
232add_subdirectory(test)
233
234IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
235    # Our test framework relies on assertions, only compile if assertions are
236    # enabled.
237    #
238    enable_testing()
239ENDIF()
240
241
242ADD_CUSTOM_TARGET(docs doxygen dox.cfg)
243