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boringssl/CMakeLists.txt
David Benjamin aff72a3805 Add the start of standalone iOS build support. 
The built-in CMake support seems to basically work, though it believes
you want to build a fat binary which doesn't work with how we build
perlasm. (We'd need to stop conditioning on CMAKE_SYSTEM_PROCESSOR at
all, wrap all the generated assembly files in ifdefs, and convince the
build to emit more than one. Probably not worth bothering for now.)

We still, of course, need to actually test the assembly on iOS before
this can be shipped anywhere.

BUG=48

Change-Id: I6ae71d98d706be03142b82f7844d1c9b02a2b832
Reviewed-on: https://boringssl-review.googlesource.com/14645
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-04-07 17:13:44 +00:00

293 lines
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CMake
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cmake_minimum_required (VERSION 2.8.11)
# Defer enabling C and CXX languages.
project (BoringSSL NONE)
if(WIN32)
# On Windows, prefer cl over gcc if both are available. By default most of
# the CMake generators prefer gcc, even on Windows.
set(CMAKE_GENERATOR_CC cl)
endif()
enable_language(C)
enable_language(CXX)
if(ANDROID)
# Android-NDK CMake files reconfigure the path and so Go and Perl won't be
# found. However, ninja will still find them in $PATH if we just name them.
if(NOT PERL_EXECUTABLE)
set(PERL_EXECUTABLE "perl")
endif()
if(NOT GO_EXECUTABLE)
set(GO_EXECUTABLE "go")
endif()
else()
find_package(Perl REQUIRED)
find_program(GO_EXECUTABLE go)
endif()
if (NOT GO_EXECUTABLE)
message(FATAL_ERROR "Could not find Go")
endif()
if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(C_CXX_FLAGS "-Wall -Werror -Wformat=2 -Wsign-compare -Wmissing-field-initializers -Wwrite-strings -ggdb -fvisibility=hidden -fno-common")
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wnewline-eof")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${C_CXX_FLAGS} -Wmissing-prototypes -Wold-style-definition -Wstrict-prototypes")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ${C_CXX_FLAGS} -Wmissing-declarations")
# Clang's integerated assembler does not support debug symbols.
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Wa,-g")
endif()
elseif(MSVC)
set(MSVC_DISABLED_WARNINGS_LIST
"C4061" # enumerator 'identifier' in switch of enum 'enumeration' is not
# explicitly handled by a case label
# Disable this because it flags even when there is a default.
"C4100" # 'exarg' : unreferenced formal parameter
"C4127" # conditional expression is constant
"C4200" # nonstandard extension used : zero-sized array in
# struct/union.
"C4204" # nonstandard extension used: non-constant aggregate initializer
"C4221" # nonstandard extension used : 'identifier' : cannot be
# initialized using address of automatic variable
"C4242" # 'function' : conversion from 'int' to 'uint8_t',
# possible loss of data
"C4244" # 'function' : conversion from 'int' to 'uint8_t',
# possible loss of data
"C4245" # 'initializing' : conversion from 'long' to
# 'unsigned long', signed/unsigned mismatch
"C4267" # conversion from 'size_t' to 'int', possible loss of data
"C4371" # layout of class may have changed from a previous version of the
# compiler due to better packing of member '...'
"C4388" # signed/unsigned mismatch
"C4296" # '>=' : expression is always true
"C4350" # behavior change: 'std::_Wrap_alloc...'
"C4365" # '=' : conversion from 'size_t' to 'int',
# signed/unsigned mismatch
"C4389" # '!=' : signed/unsigned mismatch
"C4464" # relative include path contains '..'
"C4510" # 'argument' : default constructor could not be generated
"C4512" # 'argument' : assignment operator could not be generated
"C4514" # 'function': unreferenced inline function has been removed
"C4548" # expression before comma has no effect; expected expression with
# side-effect" caused by FD_* macros.
"C4610" # struct 'argument' can never be instantiated - user defined
# constructor required.
"C4623" # default constructor was implicitly defined as deleted
"C4625" # copy constructor could not be generated because a base class
# copy constructor is inaccessible or deleted
"C4626" # assignment operator could not be generated because a base class
# assignment operator is inaccessible or deleted
"C4668" # 'symbol' is not defined as a preprocessor macro, replacing with
# '0' for 'directives'
# Disable this because GTest uses it everywhere.
"C4706" # assignment within conditional expression
"C4710" # 'function': function not inlined
"C4711" # function 'function' selected for inline expansion
"C4800" # 'int' : forcing value to bool 'true' or 'false'
# (performance warning)
"C4820" # 'bytes' bytes padding added after construct 'member_name'
"C5026" # move constructor was implicitly defined as deleted
"C5027" # move assignment operator was implicitly defined as deleted
)
set(MSVC_LEVEL4_WARNINGS_LIST
# See https://connect.microsoft.com/VisualStudio/feedback/details/1217660/warning-c4265-when-using-functional-header
"C4265" # class has virtual functions, but destructor is not virtual
)
string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
${MSVC_DISABLED_WARNINGS_LIST})
string(REPLACE "C" " -w4" MSVC_LEVEL4_WARNINGS_STR
${MSVC_LEVEL4_WARNINGS_LIST})
set(CMAKE_C_FLAGS "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR} ${MSVC_LEVEL4_WARNINGS_STR}")
set(CMAKE_CXX_FLAGS "-Wall -WX ${MSVC_DISABLED_WARNINGS_STR} ${MSVC_LEVEL4_WARNINGS_STR}")
set(CMAKE_ASM_NASM_FLAGS "-g cv8")
add_definitions(-D_HAS_EXCEPTIONS=0)
add_definitions(-DWIN32_LEAN_AND_MEAN)
add_definitions(-DNOMINMAX)
add_definitions(-D_CRT_SECURE_NO_WARNINGS) # Allow use of fopen
endif()
if((CMAKE_COMPILER_IS_GNUCXX AND CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.7.99") OR
CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshadow")
endif()
if(CMAKE_COMPILER_IS_GNUCXX)
if ((CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.8.99") OR
CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11")
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
endif()
endif()
# pthread_rwlock_t requires a feature flag.
if(NOT WIN32)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700")
endif()
if(FUZZ)
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
message(FATAL_ERROR "You need to build with Clang for fuzzing to work")
endif()
add_definitions(-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE)
set(RUNNER_ARGS "-deterministic")
if(NOT NO_FUZZER_MODE)
add_definitions(-DBORINGSSL_UNSAFE_FUZZER_MODE)
set(RUNNER_ARGS ${RUNNER_ARGS} "-fuzzer" "-shim-config" "fuzzer_mode.json")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fsanitize-coverage=edge,indirect-calls,8bit-counters")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fsanitize-coverage=edge,indirect-calls,8bit-counters")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
link_directories(.)
endif()
add_definitions(-DBORINGSSL_IMPLEMENTATION)
if (BUILD_SHARED_LIBS)
add_definitions(-DBORINGSSL_SHARED_LIBRARY)
# Enable position-independent code globally. This is needed because
# some library targets are OBJECT libraries.
set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
endif()
if (MSAN)
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
message(FATAL_ERROR "Cannot enable MSAN unless using Clang")
endif()
if (ASAN)
message(FATAL_ERROR "ASAN and MSAN are mutually exclusive")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer")
set(OPENSSL_NO_ASM "1")
endif()
if (ASAN)
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
message(FATAL_ERROR "Cannot enable ASAN unless using Clang")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fsanitize-address-use-after-scope -fno-omit-frame-pointer")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fsanitize-address-use-after-scope -fno-omit-frame-pointer")
set(OPENSSL_NO_ASM "1")
endif()
if (GCOV)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
endif()
if(FIPS)
add_definitions(-DBORINGSSL_FIPS)
endif()
# CMake's iOS support uses Apple's multiple-architecture toolchain. It takes an
# architecture list from CMAKE_OSX_ARCHITECTURES, leaves CMAKE_SYSTEM_PROCESSOR
# alone, and expects all architecture-specific logic to be conditioned within
# the source files rather than the build. This does not work for our assembly
# files, so we fix CMAKE_SYSTEM_PROCESSOR and only support single-architecture
# builds.
if (NOT OPENSSL_NO_ASM AND CMAKE_OSX_ARCHITECTURES)
list(LENGTH CMAKE_OSX_ARCHITECTURES NUM_ARCHES)
if (NOT ${NUM_ARCHES} EQUAL 1)
message(FATAL_ERROR "Universal binaries not supported.")
endif()
list(GET CMAKE_OSX_ARCHITECTURES 0 CMAKE_SYSTEM_PROCESSOR)
endif()
if (OPENSSL_NO_ASM)
add_definitions(-DOPENSSL_NO_ASM)
set(ARCH "generic")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
set(ARCH "x86_64")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
set(ARCH "x86_64")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
# cmake reports AMD64 on Windows, but we might be building for 32-bit.
if (CMAKE_CL_64)
set(ARCH "x86_64")
else()
set(ARCH "x86")
endif()
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
set(ARCH "x86")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i386")
set(ARCH "x86")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i686")
set(ARCH "x86")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
set(ARCH "aarch64")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm64")
set(ARCH "aarch64")
elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^arm*")
set(ARCH "arm")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "mips")
# Just to avoid the “unknown processor” error.
set(ARCH "generic")
elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64le")
set(ARCH "ppc64le")
else()
message(FATAL_ERROR "Unknown processor:" ${CMAKE_SYSTEM_PROCESSOR})
endif()
if (ANDROID AND ${ARCH} STREQUAL "arm")
# The Android-NDK CMake files somehow fail to set the -march flag for
# assembly files. Without this flag, the compiler believes that it's
# building for ARMv5.
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -march=${CMAKE_SYSTEM_PROCESSOR}")
endif()
if (${ARCH} STREQUAL "x86" AND APPLE)
# With CMake 2.8.x, ${CMAKE_SYSTEM_PROCESSOR} evalutes to i386 on OS X,
# but clang defaults to 64-bit builds on OS X unless otherwise told.
# Set ARCH to x86_64 so clang and CMake agree. This is fixed in CMake 3.
set(ARCH "x86_64")
endif()
# Add minimal googletest targets. The provided one has many side-effects, and
# googletest has a very straightforward build.
add_library(gtest third_party/googletest/src/gtest-all.cc)
target_include_directories(gtest PRIVATE third_party/googletest)
include_directories(third_party/googletest/include)
# Declare a dummy target to build all unit tests. Test targets should inject
# themselves as dependencies next to the target definition.
add_custom_target(all_tests)
add_subdirectory(crypto)
add_subdirectory(ssl)
add_subdirectory(ssl/test)
add_subdirectory(tool)
add_subdirectory(decrepit)
if(FUZZ)
add_subdirectory(fuzz)
endif()
if (NOT ${CMAKE_VERSION} VERSION_LESS "3.2")
# USES_TERMINAL is only available in CMake 3.2 or later.
set(MAYBE_USES_TERMINAL USES_TERMINAL)
endif()
add_custom_target(
run_tests
COMMAND ${GO_EXECUTABLE} run util/all_tests.go -build-dir
${CMAKE_BINARY_DIR}
COMMAND cd ssl/test/runner &&
${GO_EXECUTABLE} test -shim-path $<TARGET_FILE:bssl_shim>
${RUNNER_ARGS}
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
DEPENDS all_tests bssl_shim
${MAYBE_USES_TERMINAL})
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