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CMakeLists.txt
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cmake_minimum_required(VERSION 2.8.0)
project(vas C)
set(PROJECT_VERSION 0.7.42)
set(API_VERSION 0)
option(WITH_PIC "Compile static library as position-independent code" OFF) # Shared library is always PIC
option(BUILD_STATIC_LIBS "Build the static library" ON)
option(BUILD_SHARED_LIBS "Build the shared library" ON)
option(BUILD_MACOS_FATLIB "Build universal library for both i386 and x86_64 on macOS" ON)
option(BUILD_AUTO_TESTS "Build automatic tests" ON)
option(TEST_XPROC "Run cross-process tests (might require elevated priviliges)" ON)
option(BUILD_MANUAL_TESTS "Build manual test programs" ON)
IF(BUILD_MACOS_FATLIB)
IF (CMAKE_OSX_ARCHITECTURES)
MESSAGE(FATAL_ERROR "User supplied -DCMAKE_OSX_ARCHITECTURES overrides BUILD_MACOS_FATLIB=ON")
ELSE()
SET(CMAKE_OSX_ARCHITECTURES "x86_64;i386")
ENDIF()
ENDIF()
set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
INCLUDE (GNUInstallDirs)
INCLUDE (CheckIncludeFiles)
INCLUDE (CheckTypeSize)
INCLUDE (CheckCSourceCompiles)
INCLUDE (CheckCSourceRuns)
INCLUDE (CheckSymbolExists)
INCLUDE (AddIfFlagCompiles)
IF(WIN32)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
ENDIF()
add_if_flag_compiles(-Werror=pointer-arith CMAKE_C_FLAGS)
add_if_flag_compiles(-Werror=implicit-function-declaration CMAKE_C_FLAGS)
#for whatever reason this doesn't work:
#CHECK_INCLUDE_FILES(ptrace.h HAVE_SYS_PTRACE_H)
CHECK_INCLUDE_FILES(inttypes.h VAS_HAVE_INT_TYPES_H)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(0, 0, 0, 0); return 0; }"
HAVE_SYS_PTRACE_H)
CHECK_INCLUDE_FILES(mach/mach.h HAVE_MACH_H)
SET(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
CHECK_SYMBOL_EXISTS(process_vm_readv sys/uio.h HAVE_PROCESS_VM_READV)
CHECK_SYMBOL_EXISTS(__GLIBC__ features.h HAVE_GLIBC)
SET(CMAKE_REQUIRED_DEFINITIONS)
CHECK_INCLUDE_FILES(windows.h HAVE_WINDOWS_H)
IF(HAVE_SYS_PTRACE_H)
SET(CMAKE_EXTRA_INCLUDE_FILES sys/ptrace.h)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(PTRACE_ATTACH, 0, 0, 0); return 0; }"
HAVE_PTRACE_ATTACH)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(PT_ATTACHEXC, 0, 0, 0); return 0; }"
HAVE_PT_ATTACHEXC)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(PTRACE_PEEKDATA, 0, 0, 0); return 0; }"
HAVE_PTRACE_PEEKDATA)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(PT_READ_D, 0, 0, 0); return 0; }"
HAVE_PT_READ_D)
CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
#include <sys/ptrace.h>
int main(void) { ptrace(PT_IO, 0, 0, 0); return 0; }"
HAVE_PT_IO)
CHECK_TYPE_SIZE("ptrace(0, 0, 0, 0)" SIZEOF_PTRACE_RET)
MESSAGE(STATUS "Return type of ptrace is ${SIZEOF_PTRACE_RET} bytes wide")
SET(CMAKE_EXTRA_INCLUDE_FILES)
ENDIF(HAVE_SYS_PTRACE_H)
include(gmxTestLargeFiles)
gmx_test_large_files(GMX_LARGEFILES)
CHECK_TYPE_SIZE(short SIZEOF_SHORT)
CHECK_TYPE_SIZE(int SIZEOF_INT)
CHECK_TYPE_SIZE(long SIZEOF_LONG)
CHECK_TYPE_SIZE(off_t SIZEOF_OFF_T)
CHECK_TYPE_SIZE(pid_t SIZEOF_PID_T)
IF (SIZEOF_OFF_T)
SET(VAS_HAVE_OFF_T 1)
ENDIF()
IF (SIZEOF_PID_T)
SET(VAS_HAVE_PID_T 1)
ENDIF()
CHECK_INCLUDE_FILES(libpid.h HAVE_LIBPID_H)
IF (HAVE_LIBPID_H)
CHECK_SYMBOL_EXISTS(pid_self libpid.h HAVE_PID_SELF)
ENDIF()
IF (NOT HAVE_PID_SELF)
SET(CMAKE_REQUIRED_INCLUDES sys/types.h)
CHECK_SYMBOL_EXISTS(getpid unistd.h HAVE_GETPID)
SET(CMAKE_REQUIRED_INCLUDES)
IF (HAVE_GETPID)
SET(pid_self getpid)
ELSE()
CHECK_SYMBOL_EXISTS(_getpid process.h HAVE__GETPID)
IF (HAVE__GETPID)
SET(pid_self _getpid)
ELSE()
MESSAGE(WARNING No function for determining PID found! Some backends/tests will be unusable)
ENDIF()
ENDIF()
ENDIF()
CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H)
IF(HAVE_UNISTD_H)
CHECK_SYMBOL_EXISTS(fork unistd.h HAVE_FORK)
ENDIF()
SET(CMAKE_REQUIRED_DEFINITIONS -DCMAKE_REQUIRED_DEFINITIONS)
CHECK_SYMBOL_EXISTS(popen stdio.h HAVE_POPEN)
SET(CMAKE_REQUIRED_DEFINITIONS)
CHECK_SYMBOL_EXISTS(CreateProcessW windows.h HAVE_CREATEPROCESS)
CHECK_INCLUDE_FILES(sys/mman.h VAS_HAVE_MMAN_H)
IF (VAS_HAVE_MMAN_H)
CHECK_SYMBOL_EXISTS(MAP_ANONYMOUS sys/mman.h HAVE_MAP_ANONYMOUS)
check_symbol_exists(O_SYNC "fcntl.h" HAVE_O_SYNC)
IF (NOT HAVE_MAP_ANONYMOUS)
CHECK_SYMBOL_EXISTS(MAP_ANON sys/mman.h HAVE_MAP_ANON)
ENDIF()
CHECK_SYMBOL_EXISTS(shm_open sys/mman.h HAVE_SHM_OPEN)
CHECK_SYMBOL_EXISTS(shm_mkstemp sys/mman.h HAVE_SHM_MKSTEMP)
IF (NOT HAVE_SHM_OPEN)
SET(CMAKE_REQUIRED_LIBRARIES rt)
MESSAGE(STATUS "Trying with -lrt")
CHECK_SYMBOL_EXISTS(shm_open sys/mman.h HAVE_SHM_OPEN_WITH_LIBRT)
CHECK_SYMBOL_EXISTS(shm_mkstemp sys/mman.h HAVE_SHM_MKSTEMP_WITH_LIBRT)
SET(CMAKE_REQUIRED_LIBRARIES)
IF(HAVE_SHM_OPEN_WITH_LIBRT)
SET(HAVE_SHM_OPEN 1)
ENDIF()
IF(HAVE_SHM_MKSTEMP_WITH_LIBRT)
SET(HAVE_SHM_MKSTEMP 1)
ENDIF()
ENDIF()
ENDIF(VAS_HAVE_MMAN_H)
set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
IF(NOT HAVE_WINDOWS_H)
set(CMAKE_MACOSX_RPATH ON)
ENDIF()
include_directories(include)
include_directories(.)
file(GLOB SOURCES info.c alloc.c)
STRING(REGEX MATCH "Linux" LINUX ${CMAKE_SYSTEM_NAME})
STRING(REGEX MATCH "BSD" BSD ${CMAKE_SYSTEM_NAME})
STRING(REGEX MATCH "NetBSD" NetBSD ${CMAKE_SYSTEM_NAME})
STRING(TOLOWER "${BACKEND}" BACKEND)
# when cross compiling
SET(HAVE_PROCFS_PID_AS_EXITCODE 1 CACHE STRING "Result from TRY_RUN" FORCE)
SET(HAVE_PROCFS_PID_MEM_EXITCODE 1 CACHE STRING "Result from TRY_RUN" FORCE)
# IF(EXISTS finds /proc/self/mem but not /proc/1/mem for whatever reason
# FreeBSD has no /proc/1/mem, but has /proc/anyother_pid/mem
IF(HAVE_UNISTD_H)
MESSAGE(STATUS "Checking for /proc/$$/as")
CHECK_C_SOURCE_RUNS("#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
char filename[32];
int main(void) {
if (sprintf(filename, \"/proc/%ld/as\", (long)getpid()) < 0) return 1;
return access( filename, F_OK );}"
HAVE_PROCFS_PID_AS)
IF (HAVE_PROCFS_PID_AS)
SET(PROCFS_MEM_OR_AS "as")
ENDIF()
MESSAGE(STATUS "Checking for /proc/$$/mem")
CHECK_C_SOURCE_RUNS("#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
char filename[32];
int main(void) {
if (sprintf(filename, \"/proc/%ld/mem\", (long)getpid()) < 0) return 1;
return access( filename, F_OK );}"
HAVE_PROCFS_PID_MEM)
IF (HAVE_PROCFS_PID_MEM)
SET(PROCFS_MEM_OR_AS "mem")
ENDIF()
IF (PROCFS_MEM_OR_AS)
# Linux
CHECK_C_SOURCE_RUNS("#include <sys/types.h>
#include <unistd.h>
int main(void) {
return access( \"/proc/self/${PROCFS_MEM_OR_AS}\", F_OK );}"
HAVE_PROCFS_SELF_SYMLINK)
# FreeBSD
CHECK_C_SOURCE_RUNS("#include <sys/types.h>
#include <unistd.h>
int main(void) {
return access( \"/proc/curproc/${PROCFS_MEM_OR_AS}\", F_OK );}"
HAVE_PROCFS_CURPROC_SYMLINK)
ENDIF()
ENDIF(HAVE_UNISTD_H)
option(WITH_SWIG "Generate scriping language wrappers with SWIG" OFF)
IF (WITH_SWIG)
FIND_PACKAGE(SWIG)
IF(SWIG_FOUND)
FIND_PACKAGE(PythonLibs)
FIND_PACKAGE(PerlLibs)
ENDIF(SWIG_FOUND)
ENDIF()
IF("${BACKEND}" STREQUAL "")
IF(WIN32)
SET(BACKEND win32)
ELSEIF(HAVE_MACH_H) # macOS and GNU Hurd
SET(BACKEND mach)
ELSEIF(HAVE_PROCESS_VM_READV) # Linux 3.2 & glibc 2.15
SET(BACKEND process_vm)
ELSEIF(HAVE_PROCFS_PID_MEM # Linux and more
OR HAVE_PROCFS_PID_AS) # SunOS/Solaris
SET(BACKEND procfs)
ELSEIF(HAVE_SYS_PTRACE_H AND NOT APPLE) # BSD without procfs mounted, what else?
SET(BACKEND ptrace) # macOS always reports EBUSY instead of proper ESYS
ELSE()
SET(BACKEND memcpy)
ENDIF()
ENDIF()
IF("${BACKEND}" STREQUAL win32)
SET(BACKEND_DESC WinAPI)
file(GLOB SOURCES ${SOURCES} win32/*.c poll.c dup.c)
ELSEIF("${BACKEND}" STREQUAL mach)
SET(BACKEND_DESC "Mach VM API")
SET(VAS_USES_MACH 1)
file(GLOB SOURCES ${SOURCES} mach/*.c posix/fmap.c dup.c)
ELSEIF("${BACKEND}" STREQUAL process_vm)
SET(BACKEND_DESC "process_vm_{readv,writev}")
file(GLOB SOURCES ${SOURCES} process_vm/*.c posix/*.c poll.c dup.c)
IF (NOT (HAVE_PID_SELF OR pid_self))
MESSAGE(FATAL_ERROR "Backend requires a function to retrieve own pid, but none found.")
ENDIF()
ELSEIF("${BACKEND}" STREQUAL procfs)
SET(BACKEND_DESC "/proc/$pid/${PROCFS_MEM_OR_AS}")
IF (NOT (HAVE_PID_SELF OR pid_self))
MESSAGE(FATAL_ERROR "Backend requires a function to retrieve own pid, but none found.")
ENDIF()
INCLUDE (CheckFunctionExists)
CHECK_FUNCTION_EXISTS(pwrite HAVE_PWRITE)
CHECK_FUNCTION_EXISTS(pread HAVE_PREAD)
IF (NOT HAVE_PWRITE OR NOT HAVE_PREAD)
MESSAGE(WARNING "using own implementation for pread/pwrite(2)")
ENDIF()
configure_file(config.h.in config.h)
file(GLOB SOURCES ${SOURCES} procfs/*.c posix/*.c poll.c dup.c)
#add_definitions(-DHAS_WEAK_ALIAS)
ELSEIF("${BACKEND}" STREQUAL ptrace)
SET(BACKEND_DESC "ptrace(2) API")
SET(VAS_USES_PTRACE 1)
IF(BSD)
MESSAGE(STATUS "procfs not mounted on this BSD. You could try to mount -t procfs proc /proc")
ENDIF()
IF (NOT (HAVE_PID_SELF OR pid_self))
MESSAGE(FATAL_ERROR "Backend requires a function to retrieve own pid, but none found.")
ENDIF()
file(GLOB SOURCES ${SOURCES} ptrace/*.c posix/*.c poll.c dup.c)
ELSEIF("${BACKEND}" STREQUAL memcpy)
SET(BACKEND_DESC memcpy)
SET(VAS_USES_MEMCPY 1)
MESSAGE(WARNING "It looks like we don't support this system yet,")
MESSAGE(WARNING "Falling back to trivial (own address space only) implementation.")
file(GLOB SOURCES ${SOURCES} *.c)
ELSE()
MESSAGE(FATAL_ERROR "${BACKEND} is not a supported backend. Valid values are
win32, mach, procfs, process_vm, ptrace, memcpy
or just leave it empty")
ENDIF()
MESSAGE("lib${PROJECT_NAME} will use ${BACKEND_DESC}")
configure_file(vas.h.in vas.h)
configure_file(vas-types.h.in vas-types.h)
configure_file(config.h.in config.h)
configure_file(libvas.pc.in libvas.pc @ONLY)
include_directories(${CMAKE_CURRENT_BINARY_DIR})
include(${CMAKE_CURRENT_SOURCE_DIR}/CFLAGS.cmake)
IF(HAVE_SHM_OPEN_WITH_LIBRT) # TODO also check if shm_open is used at all?
link_libraries(rt)
ENDIF()
IF (BUILD_SHARED_LIBS)
add_library(${PROJECT_NAME} SHARED ${SOURCES})
set_property(TARGET ${PROJECT_NAME} PROPERTY POSITION_INDEPENDENT_CODE ON)
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION ${PROJECT_VERSION}
SOVERSION ${API_VERSION}
)
ENDIF()
IF (BUILD_STATIC_LIBS)
add_library(${PROJECT_NAME}_static STATIC ${SOURCES})
if (WITH_PIC)
set_property(TARGET ${PROJECT_NAME}_static PROPERTY POSITION_INDEPENDENT_CODE ON)
ENDIF()
IF(NOT WIN32) # Keep name at libvas.(a|dll), but avoid *.lib files overwriting each other on Windows
set_target_properties(${PROJECT_NAME}_static PROPERTIES OUTPUT_NAME ${PROJECT_NAME})
ENDIF()
ENDIF()
IF (NOT (BUILD_STATIC_LIBS OR BUILD_SHARED_LIBS))
MESSAGE(FATAL_ERROR "Both -DBUILD_SHARED_LIBS=OFF and -DBUILD_STATIC_LIBS=OFF supplied. Nothing to do...")
ENDIF()
# SWIG
IF(SWIG_FOUND)
INCLUDE(${SWIG_USE_FILE})
#SET_SOURCE_FILES_PROPERTIES(swig.i PROPERTIES CPLUSPLUS OFF)
SET_SOURCE_FILES_PROPERTIES(swig.i PROPERTIES SWIG_FLAGS "-includeall")
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
SET(CMAKE_SWIG_FLAGS "")
IF(PYTHONLIBS_FOUND)
INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})
SWIG_ADD_LIBRARY(py-libvas LANGUAGE python SOURCES swig.i)
SWIG_LINK_LIBRARIES(py-libvas ${PYTHON_LIBRARIES} ${PROJECT_NAME})
ENDIF()
IF(PERLLIBs_FOUND)
INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})
SWIG_ADD_LIBRARY(p5-libvas LANGUAGE perl SOURCES swig.i)
SWIG_LINK_LIBRARIES(p5-libvas ${PERL_LIBRARIES} ${PROJECT_NAME})
ENDIF()
ENDIF(SWIG_FOUND)
# Tests
IF (BUILD_AUTO_TESTS)
SET(AUTO_TESTS onself cow ringbuf error)
IF(TEST_XPROC)
IF(HAVE_FORK)
LIST(APPEND AUTO_TESTS onchild_fork)
ELSEIF(HAVE_CREATEPROCESS)
ENDIF(HAVE_FORK)
IF(HAVE_POPEN)
LIST(APPEND AUTO_TESTS onchild_popen)
ENDIF()
ENDIF(TEST_XPROC)
IF(BUILD_STATIC_LIBS)
SET(T info)
file(GLOB ${T}_src test/${T}.c)
add_executable(${T} ${${T}_src})
target_link_libraries(${T} ${PROJECT_NAME}_static)
set_target_properties(${T} PROPERTIES OUTPUT_NAME "${T}")
add_test(${T} ${CMAKE_CURRENT_BINARY_DIR}/${T})
SET(T)
ELSE()
LIST(APPEND AUTO_TESTS info)
ENDIF(BUILD_STATIC_LIBS)
enable_testing()
foreach(T ${AUTO_TESTS})
file(GLOB ${T}_src test/${T}.c)
add_executable(${T} ${${T}_src})
target_link_libraries(${T} ${PROJECT_NAME})
set_target_properties(${T} PROPERTIES OUTPUT_NAME "${T}")
endforeach(T)
IF(NetBSD AND VAS_USES_PTRACE) # see test/onchild_popen.c for details
LIST(REMOVE_ITEM AUTO_TESTS onchild_popen)
ENDIF()
IF(VAS_USES_MEMCPY)
LIST(REMOVE_ITEM AUTO_TESTS ringbuf)
LIST(REMOVE_ITEM AUTO_TESTS onchild_fork)
ENDIF()
FOREACH(T ${AUTO_TESTS})
add_test(${T} ${CMAKE_CURRENT_BINARY_DIR}/${T})
ENDFOREACH()
ENDIF(BUILD_AUTO_TESTS)
IF (BUILD_MANUAL_TESTS)
SET(MANUAL_TESTS readlong)
IF(WIN32)
LIST(APPEND MANUAL_TESTS tibia-healer)
ENDIF()
foreach(T ${MANUAL_TESTS})
file(GLOB ${T}_src test/manual/${T}.c)
add_executable(${T} ${${T}_src})
target_link_libraries(${T} ${PROJECT_NAME})
set_target_properties(${T} PROPERTIES OUTPUT_NAME "${T}")
endforeach(T)
ENDIF(BUILD_MANUAL_TESTS)
# Install pkg-config pc
install(FILES ${CMAKE_BINARY_DIR}/lib${PROJECT_NAME}.pc DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
# Install library
install (TARGETS ${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_LIBDIR})
install (TARGETS ${PROJECT_NAME}_static DESTINATION ${CMAKE_INSTALL_LIBDIR})
# Install library headers
install(FILES ${CMAKE_BINARY_DIR}/vas.h ${CMAKE_BINARY_DIR}/vas-types.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
SET(CPACK_PACKAGE_NAME "lib${PROJECT_NAME}")
SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Multi-Platform memory reading/writing")
SET(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}")
SET(CPACK_PACKAGE_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
SET(CPACK_PACKAGE_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
SET(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
SET(CPACK_PACKAGE_DESCRIPTION_FILE "${PROJECT_SOURCE_DIR}/README.md")
SET(CPACK_RESOURCE_FILE_WELCOME "${PROJECT_SOURCE_DIR}/README.md")
SET(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
SET(CPACK_GENERATOR "ZIP;TGZ") # Remove this, if you want the NSIS installer on Windows
include(CPack)