blob: 38d63dbc8335cee43ab0d5c1bd2f4b6642081834 [file] [log] [blame]
cmake_minimum_required(VERSION 3.16)
# Defer enabling C and CXX languages.
project(BoringSSL NONE)
# Don't install BoringSSL to system directories by default; it has no stable
# ABI. Instead, default to an "install" directory under the source.
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
set(CMAKE_INSTALL_PREFIX ${CMAKE_SOURCE_DIR}/install CACHE PATH "" FORCE)
endif()
if(WIN32)
# On Windows, prefer cl over gcc if both are available. By default most of
# the CMake generators prefer gcc, even on Windows.
set(CMAKE_GENERATOR_CC cl)
endif()
include(cmake/go.cmake)
include(cmake/paths.cmake)
include(gen/sources.cmake)
enable_language(C)
enable_language(CXX)
include(GNUInstallDirs)
set(INSTALL_ENABLED 1)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND NOT CMAKE_CROSSCOMPILING)
find_package(PkgConfig QUIET)
if (PkgConfig_FOUND)
pkg_check_modules(LIBUNWIND libunwind-generic>=1.3.0)
if(LIBUNWIND_FOUND)
add_definitions(-DBORINGSSL_HAVE_LIBUNWIND)
else()
message("libunwind not found. Disabling unwind tests.")
endif()
else()
message("pkgconfig not found. Disabling unwind tests.")
endif()
endif()
string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
if(NOT FIPS)
if(CMAKE_BUILD_TYPE_LOWER STREQUAL "relwithassert" OR
NOT CMAKE_BUILD_TYPE_LOWER MATCHES "rel")
add_definitions(-DBORINGSSL_DISPATCH_TEST)
# CMake automatically connects include_directories to the NASM
# command-line, but not add_definitions.
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DBORINGSSL_DISPATCH_TEST")
endif()
endif()
# Add a RelWithAsserts build configuration. It is the same as Release, except it
# does not define NDEBUG, so asserts run.
foreach(VAR CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_ASM_FLAGS)
string(REGEX REPLACE "(^| )[/-]DNDEBUG( |$)" " " "${VAR}_RELWITHASSERTS"
"${${VAR}_RELEASE}")
endforeach()
if(BORINGSSL_PREFIX AND BORINGSSL_PREFIX_SYMBOLS)
require_go()
add_definitions(-DBORINGSSL_PREFIX=${BORINGSSL_PREFIX})
# CMake automatically connects include_directories to the NASM command-line,
# but not add_definitions.
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DBORINGSSL_PREFIX=${BORINGSSL_PREFIX}")
# Use "symbol_prefix_include" to store generated header files
include_directories(${CMAKE_CURRENT_BINARY_DIR}/symbol_prefix_include)
add_custom_command(
OUTPUT symbol_prefix_include/boringssl_prefix_symbols.h
symbol_prefix_include/boringssl_prefix_symbols_asm.h
symbol_prefix_include/boringssl_prefix_symbols_nasm.inc
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/symbol_prefix_include
COMMAND ${GO_EXECUTABLE} run ${CMAKE_CURRENT_SOURCE_DIR}/util/make_prefix_headers.go -out ${CMAKE_CURRENT_BINARY_DIR}/symbol_prefix_include ${BORINGSSL_PREFIX_SYMBOLS}
DEPENDS util/make_prefix_headers.go
${BORINGSSL_PREFIX_SYMBOLS})
# add_dependencies needs a target, not a file, so we add an intermediate
# target.
add_custom_target(
boringssl_prefix_symbols
DEPENDS symbol_prefix_include/boringssl_prefix_symbols.h
symbol_prefix_include/boringssl_prefix_symbols_asm.h
symbol_prefix_include/boringssl_prefix_symbols_nasm.inc)
elseif(BORINGSSL_PREFIX OR BORINGSSL_PREFIX_SYMBOLS)
message(FATAL_ERROR "Must specify both or neither of BORINGSSL_PREFIX and BORINGSSL_PREFIX_SYMBOLS")
else()
add_custom_target(boringssl_prefix_symbols)
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CLANG 1)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
set(EMSCRIPTEN 1)
endif()
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)
if(CMAKE_COMPILER_IS_GNUCXX OR CLANG)
# Note clang-cl is odd and sets both CLANG and MSVC. We base our configuration
# primarily on our normal Clang one.
set(C_CXX_FLAGS "-Werror -Wformat=2 -Wsign-compare -Wwrite-strings -Wvla -Wshadow -Wtype-limits -Wmissing-field-initializers")
if(MSVC)
# clang-cl sets different default warnings than clang. It also treats -Wall
# as -Weverything, to match MSVC. Instead -W3 is the alias for -Wall.
# See http://llvm.org/viewvc/llvm-project?view=revision&revision=319116
set(C_CXX_FLAGS "${C_CXX_FLAGS} -W3 -Wno-unused-parameter -fmsc-version=1900")
else()
if(EMSCRIPTEN)
# emscripten's emcc/clang does not accept the "-ggdb" flag.
set(C_CXX_FLAGS "${C_CXX_FLAGS} -g")
else()
set(C_CXX_FLAGS "${C_CXX_FLAGS} -ggdb")
endif()
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wall -fvisibility=hidden -fno-common")
endif()
if(CLANG)
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wnewline-eof -Wextra-semi -fcolor-diagnostics")
else()
# GCC (at least 4.8.4) has a bug where it'll find unreachable free() calls
# and declare that the code is trying to free a stack pointer.
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wno-free-nonheap-object")
endif()
# -Wstring-concatenation was added in Clang 12.0.0, which corresponds to
# AppleClang 13.0.0 per the table in
# https://en.wikipedia.org/wiki/Xcode#Toolchain_versions
if((CMAKE_C_COMPILER_ID STREQUAL "Clang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "12.0.0") OR
(CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "13.0.0"))
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wstring-concatenation")
endif()
# Clang 12's -Wframe-larger-than reportedly does not work in clang-cl. See
# https://crbug.com/boringssl/709. Clang 13 includes the following fix, which
# may be related. Speculatively gate on Clang 13. That corresponds to
# AppleClang 13.1.6.
# https://github.com/llvm/llvm-project/commit/6aaf4fa2885600b0e31042071ad06f78218ab0f2
if((CMAKE_C_COMPILER_ID STREQUAL "Clang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "13.0.0") OR
(CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "13.1.6"))
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wframe-larger-than=25344")
endif()
# -Wctad-maybe-unsupported was added in Clang 10, which is AppleClang 12.0.0.
if((CMAKE_C_COMPILER_ID STREQUAL "Clang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "10.0.0") OR
(CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND
CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "12.0.0"))
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wctad-maybe-unsupported")
endif()
if(CLANG OR CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL "7.0.0")
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wimplicit-fallthrough")
endif()
if(CMAKE_COMPILER_IS_GNUCXX)
set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wformat-signedness")
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} ${C_CXX_FLAGS} -Wmissing-declarations -Wnon-virtual-dtor")
# In GCC, -Wmissing-declarations is the C++ spelling of -Wmissing-prototypes
# and using the wrong one is an error. In Clang, -Wmissing-prototypes is the
# spelling for both and -Wmissing-declarations is some other warning.
#
# https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gcc/Warning-Options.html#Warning-Options
# https://clang.llvm.org/docs/DiagnosticsReference.html#wmissing-prototypes
# https://clang.llvm.org/docs/DiagnosticsReference.html#wmissing-declarations
if(CLANG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wmissing-prototypes")
endif()
elseif(MSVC)
set(MSVC_DISABLED_WARNINGS_LIST
"C4100" # 'exarg' : unreferenced formal parameter
"C4127" # conditional expression is constant
"C4244" # 'function' : conversion from 'int' to 'uint8_t',
# possible loss of data
"C4267" # conversion from 'size_t' to 'int', possible loss of data
"C4706" # assignment within conditional expression
)
string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
${MSVC_DISABLED_WARNINGS_LIST})
set(CMAKE_C_FLAGS "-utf-8 -W4 -WX ${MSVC_DISABLED_WARNINGS_STR}")
# Without /Zc:__cplusplus, MSVC does not define the right value for
# __cplusplus. See https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
# If this becomes too problematic for downstream code, we can look at
# _MSVC_LANG.
set(CMAKE_CXX_FLAGS "-utf-8 -W4 -WX ${MSVC_DISABLED_WARNINGS_STR} -Zc:__cplusplus")
endif()
if(WIN32)
add_definitions(-D_HAS_EXCEPTIONS=0)
add_definitions(-DWIN32_LEAN_AND_MEAN)
add_definitions(-DNOMINMAX)
# Allow use of fopen.
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()
# pthread_rwlock_t on Linux requires a feature flag. We limit this to Linux
# because, on Apple platforms, it instead disables APIs we use. See compat(5)
# and sys/cdefs.h. Reportedly, FreeBSD also breaks when this is set. See
# https://crbug.com/boringssl/471.
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700")
endif()
if(FUZZ)
if(NOT CLANG)
message(FATAL_ERROR "You need to build with Clang for fuzzing to work")
endif()
if(CMAKE_C_COMPILER_VERSION VERSION_LESS "6.0.0")
message(FATAL_ERROR "You need Clang ≥ 6.0.0")
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,fuzzer-no-link -fsanitize-coverage=edge,indirect-calls")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address,fuzzer-no-link -fsanitize-coverage=edge,indirect-calls")
endif()
add_definitions(-DBORINGSSL_IMPLEMENTATION)
if(BUILD_SHARED_LIBS)
add_definitions(-DBORINGSSL_SHARED_LIBRARY)
# Enable position-independent code globally. This is needed because
# some library targets are OBJECT libraries.
set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
endif()
if(MSAN)
if(NOT CLANG)
message(FATAL_ERROR "Cannot enable MSAN unless using Clang")
endif()
if(ASAN)
message(FATAL_ERROR "ASAN and MSAN are mutually exclusive")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer")
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer")
endif()
if(ASAN)
if(NOT 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")
endif()
if(CFI)
if(NOT CLANG)
message(FATAL_ERROR "Cannot enable CFI unless using Clang")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=cfi -fno-sanitize-trap=cfi -flto=thin")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=cfi -fno-sanitize-trap=cfi -flto=thin")
# We use Chromium's copy of clang, which requires -fuse-ld=lld if building
# with -flto. That, in turn, can't handle -ggdb.
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld")
string(REPLACE "-ggdb" "-g" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
string(REPLACE "-ggdb" "-g" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
# -flto causes object files to contain LLVM bitcode. Mixing those with
# assembly output in the same static library breaks the linker.
set(OPENSSL_NO_ASM "1")
endif()
if(TSAN)
if(NOT CLANG)
message(FATAL_ERROR "Cannot enable TSAN unless using Clang")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=thread")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=thread")
endif()
if(UBSAN)
if(NOT CLANG)
message(FATAL_ERROR "Cannot enable UBSAN unless using Clang")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined")
if(NOT UBSAN_RECOVER)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-sanitize-recover=undefined")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-sanitize-recover=undefined")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-sanitize-recover=undefined")
endif()
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)
require_go()
add_definitions(-DBORINGSSL_FIPS)
if(FIPS_BREAK_TEST)
add_definitions("-DBORINGSSL_FIPS_BREAK_${FIPS_BREAK_TEST}=1")
endif()
# The FIPS integrity check does not work for ASan and MSan builds.
if(NOT ASAN AND NOT MSAN)
if(BUILD_SHARED_LIBS)
set(FIPS_SHARED "1")
else()
set(FIPS_DELOCATE "1")
endif()
endif()
if(FIPS_SHARED)
# The Android CMake files set -ffunction-sections and -fdata-sections,
# which is incompatible with FIPS_SHARED.
set(CMAKE_C_FLAGS
"${CMAKE_C_FLAGS} -fno-function-sections -fno-data-sections")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fno-function-sections -fno-data-sections")
endif()
endif()
if(OPENSSL_SMALL)
add_definitions(-DOPENSSL_SMALL)
endif()
if(CONSTANT_TIME_VALIDATION)
add_definitions(-DBORINGSSL_CONSTANT_TIME_VALIDATION)
endif()
if(MALLOC_FAILURE_TESTING)
add_definitions(-DBORINGSSL_MALLOC_FAILURE_TESTING)
endif()
if(OPENSSL_NO_ASM)
add_definitions(-DOPENSSL_NO_ASM)
endif()
if(FIPS_DELOCATE OR NOT OPENSSL_NO_ASM)
# On x86 and x86_64 Windows, we use the NASM output.
if(WIN32 AND CMAKE_SYSTEM_PROCESSOR MATCHES "AMD64|x86_64|amd64|x86|i[3-6]86")
enable_language(ASM_NASM)
set(OPENSSL_NASM TRUE)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -gcv8")
else()
enable_language(ASM)
if (NOT OPENSSL_NO_ASM)
set(OPENSSL_ASM TRUE)
endif()
# Work around https://gitlab.kitware.com/cmake/cmake/-/issues/20771 in older
# CMake versions.
if(APPLE AND CMAKE_VERSION VERSION_LESS 3.19)
if(CMAKE_OSX_SYSROOT)
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -isysroot \"${CMAKE_OSX_SYSROOT}\"")
endif()
foreach(arch ${CMAKE_OSX_ARCHITECTURES})
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -arch ${arch}")
endforeach()
endif()
if(NOT WIN32)
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Wa,--noexecstack")
endif()
# Clang's integerated assembler does not support debug symbols.
if(NOT CMAKE_ASM_COMPILER_ID MATCHES "Clang")
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Wa,-g")
endif()
endif()
endif()
if(OPENSSL_NO_SSE2_FOR_TESTING)
add_definitions(-DOPENSSL_NO_SSE2_FOR_TESTING)
endif()
if(USE_CUSTOM_LIBCXX)
if(NOT CLANG)
message(FATAL_ERROR "USE_CUSTOM_LIBCXX only supported with Clang")
endif()
# CMake does not allow installing a library without installing dependencies.
# If we installed libcrypto, we'd have to install our custom libc++, which
# does not make sense. As this is a test-only configuration, disable
# installing.
set(INSTALL_ENABLED 0)
# CMAKE_CXX_FLAGS ends up in the linker flags as well, so use
# add_compile_options. There does not appear to be a way to set
# language-specific compile-only flags.
add_compile_options("-nostdinc++")
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -nostdlib++")
include_directories(
SYSTEM
util/bot/libcxx-config
util/bot/libcxx/include
util/bot/libcxxabi/include
)
# This is patterned after buildtools/third_party/libc++/BUILD.gn and
# buildtools/third_party/libc++abi/BUILD.gn in Chromium.
file(GLOB LIBCXX_SOURCES "util/bot/libcxx/src/*.cpp")
file(GLOB LIBCXXABI_SOURCES "util/bot/libcxxabi/src/*.cpp")
# This file is meant for exception-less builds.
list(REMOVE_ITEM LIBCXXABI_SOURCES "trunk/src/cxa_noexception.cpp")
# libc++ also defines new and delete.
list(REMOVE_ITEM LIBCXXABI_SOURCES "trunk/src/stdlib_new_delete.cpp")
if(TSAN)
# ThreadSanitizer tries to intercept these symbols. Skip them to avoid
# symbol conflicts.
list(REMOVE_ITEM LIBCXXABI_SOURCES "trunk/src/cxa_guard.cpp")
endif()
add_library(libcxxabi ${LIBCXXABI_SOURCES})
target_compile_definitions(
libcxxabi PRIVATE
-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
)
add_library(libcxx ${LIBCXX_SOURCES})
if(ASAN OR MSAN OR TSAN)
# Sanitizers try to intercept new and delete.
target_compile_definitions(
libcxx PRIVATE
-D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS
)
endif()
target_compile_definitions(
libcxx PRIVATE
-D_LIBCPP_BUILDING_LIBRARY
-DLIBCXX_BUILDING_LIBCXXABI
-DLIBC_NAMESPACE=bssl_llvm_libc
)
# LLVM libc++ depends on some shared headers from LLVM libc.
target_include_directories(libcxx PRIVATE util/bot/llvm-libc)
set_target_properties(
libcxx libcxxabi PROPERTIES
COMPILE_FLAGS "-Wno-missing-prototypes -Wno-implicit-fallthrough"
# libc++ and libc++abi must be built in C++23 mode.
CXX_STANDARD 23
CXX_STANDARD_REQUIRED TRUE
)
# libc++abi depends on libc++ internal headers.
set_property(TARGET libcxx libcxxabi APPEND PROPERTY INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/util/bot/libcxx/src")
target_link_libraries(libcxx libcxxabi)
endif()
# Add minimal googletest targets. The provided one has many side-effects, and
# googletest has a very straightforward build.
add_library(
boringssl_gtest
third_party/googletest/googlemock/src/gmock-all.cc
third_party/googletest/googletest/src/gtest-all.cc
)
if(USE_CUSTOM_LIBCXX)
target_link_libraries(boringssl_gtest libcxx)
endif()
target_include_directories(
boringssl_gtest
PUBLIC
third_party/googletest/googlemock/include
third_party/googletest/googletest/include
PRIVATE
third_party/googletest/googlemock
third_party/googletest/googletest
)
# 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(ssl/test)
add_subdirectory(util/fipstools)
add_subdirectory(util/fipstools/acvp/modulewrapper)
if(OPENSSL_ASM)
set(CRYPTO_SOURCES_ASM_USED ${CRYPTO_SOURCES_ASM})
set(BCM_SOURCES_ASM_USED ${BCM_SOURCES_ASM})
set(TEST_SUPPORT_SOURCES_ASM_USED ${TEST_SUPPORT_SOURCES_ASM})
elseif(OPENSSL_NASM)
set(CRYPTO_SOURCES_ASM_USED ${CRYPTO_SOURCES_NASM})
set(BCM_SOURCES_ASM_USED ${BCM_SOURCES_NASM})
set(TEST_SUPPORT_SOURCES_ASM_USED ${TEST_SUPPORT_SOURCES_NASM})
endif()
if(FIPS_DELOCATE AND FIPS_SHARED)
message(FATAL_ERROR "Can't set both delocate and shared mode for FIPS build")
endif()
# OSS-Fuzz relies on BORINGSSL_ALLOW_CXX_RUNTIME because -fno-rtti and
# -fsanitize=vptr are incompatible.
set(NO_CXX_RUNTIME_FLAGS)
if(NOT MSVC AND NOT BORINGSSL_ALLOW_CXX_RUNTIME)
# Without -fno-exceptions, use of std::unique_ptr emits a call to
# std::terminate.
set(NO_CXX_RUNTIME_FLAGS -fno-exceptions -fno-rtti)
endif()
if(FIPS_DELOCATE)
add_library(bcm_c_generated_asm STATIC ${BCM_SOURCES})
# The C++ code in libcrypto shouldn't depend on libstdc++.
target_compile_options(bcm_c_generated_asm PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${NO_CXX_RUNTIME_FLAGS}> "-S")
add_dependencies(bcm_c_generated_asm boringssl_prefix_symbols)
target_include_directories(bcm_c_generated_asm PRIVATE ${PROJECT_SOURCE_DIR}/include)
set_target_properties(bcm_c_generated_asm PROPERTIES POSITION_INDEPENDENT_CODE ON)
if(CLANG)
# Clang warns when passing both -c (from CMake) and -S.
target_compile_options(bcm_c_generated_asm PRIVATE "-Wno-unused-command-line-argument")
endif()
set(TARGET_FLAG "")
if(CMAKE_ASM_COMPILER_TARGET)
set(TARGET_FLAG "--target=${CMAKE_ASM_COMPILER_TARGET}")
endif()
go_executable(delocate boringssl.googlesource.com/boringssl/util/fipstools/delocate)
add_custom_command(
OUTPUT bcm-delocated.S
COMMAND ${CMAKE_CURRENT_BINARY_DIR}/delocate
-a $<TARGET_FILE:bcm_c_generated_asm>
-o ${CMAKE_CURRENT_BINARY_DIR}/bcm-delocated.S
-cc ${CMAKE_ASM_COMPILER}
-cc-flags "${TARGET_FLAG} ${CMAKE_ASM_FLAGS}"
${BCM_SOURCES_ASM_USED}
${CRYPTO_HEADERS}
DEPENDS bcm_c_generated_asm
delocate
${BCM_SOURCES_ASM_USED}
${CRYPTO_HEADERS}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
add_library(bcm_hashunset STATIC bcm-delocated.S)
set_target_properties(bcm_hashunset PROPERTIES POSITION_INDEPENDENT_CODE ON)
set_target_properties(bcm_hashunset PROPERTIES LINKER_LANGUAGE C)
go_executable(inject_hash
boringssl.googlesource.com/boringssl/util/fipstools/inject_hash)
add_custom_command(
OUTPUT bcm.o
COMMAND ./inject_hash -o bcm.o -in-archive $<TARGET_FILE:bcm_hashunset>
DEPENDS bcm_hashunset inject_hash
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)
set(CRYPTO_FIPS_OBJECTS bcm.o)
elseif(FIPS_SHARED)
if(NOT BUILD_SHARED_LIBS)
message(FATAL_ERROR "FIPS_SHARED set but not BUILD_SHARED_LIBS")
endif()
add_library(bcm_library STATIC ${BCM_SOURCES} ${BCM_SOURCES_ASM_USED})
# The C++ code in libcrypto shouldn't depend on libstdc++.
target_compile_options(bcm_library PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${NO_CXX_RUNTIME_FLAGS}>)
add_dependencies(bcm_library boringssl_prefix_symbols)
target_include_directories(bcm_library PRIVATE ${PROJECT_SOURCE_DIR}/include)
add_custom_command(
OUTPUT bcm.o
COMMAND ${CMAKE_LINKER} -r -T ${CMAKE_CURRENT_SOURCE_DIR}/crypto/fipsmodule/fips_shared.lds -o bcm.o --whole-archive $<TARGET_FILE:bcm_library>
DEPENDS bcm_library crypto/fipsmodule/fips_shared.lds
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)
set(CRYPTO_FIPS_OBJECTS bcm.o)
else()
add_library(fipsmodule OBJECT ${BCM_SOURCES} ${BCM_SOURCES_ASM_USED})
# The C++ code in libcrypto shouldn't depend on libstdc++.
target_compile_options(fipsmodule PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${NO_CXX_RUNTIME_FLAGS}>)
add_dependencies(fipsmodule boringssl_prefix_symbols)
target_include_directories(fipsmodule PRIVATE ${PROJECT_SOURCE_DIR}/include)
set(CRYPTO_FIPS_OBJECTS $<TARGET_OBJECTS:fipsmodule>)
endif()
add_library(crypto ${CRYPTO_SOURCES} ${CRYPTO_FIPS_OBJECTS} ${CRYPTO_SOURCES_ASM_USED})
# The C++ code in libcrypto shouldn't depend on libstdc++.
target_compile_options(crypto PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${NO_CXX_RUNTIME_FLAGS}>)
target_include_directories(crypto PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>
)
set_property(TARGET crypto PROPERTY EXPORT_NAME Crypto)
if(FIPS_SHARED)
# Rewrite libcrypto.so to inject the correct module hash value. This assumes
# UNIX-style library naming, but we only support FIPS mode on Linux anyway.
add_custom_command(
TARGET crypto POST_BUILD
COMMAND ${GO_EXECUTABLE} run
${CMAKE_CURRENT_SOURCE_DIR}/util/fipstools/inject_hash/inject_hash.go
-o libcrypto.so -in-object libcrypto.so
# The DEPENDS argument to a POST_BUILD rule appears to be ignored. Thus
# go_executable isn't used (as it doesn't get built), but we list this
# dependency anyway in case it starts working in some CMake version.
DEPENDS util/fipstools/inject_hash/inject_hash.go
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)
endif()
add_dependencies(crypto boringssl_prefix_symbols)
if(WIN32)
target_link_libraries(crypto ws2_32)
endif()
# CMAKE_SYSTEM_NAME is "Generic" for embedded OSes:
# https://cmake.org/cmake/help/book/mastering-cmake/chapter/Cross%20Compiling%20With%20CMake.html#toolchain-files
#
# For now we assume embedded OSes do not have threads. Additionally, the Threads
# package does not work with Android, but Android does not require any extra
# parameters to link pthreads.
if(NOT CMAKE_SYSTEM_NAME MATCHES "^(Generic|Android)$")
find_package(Threads REQUIRED)
target_link_libraries(crypto Threads::Threads)
endif()
# Every target depends on crypto, so we add libcxx as a dependency here to
# simplify injecting it everywhere.
if(USE_CUSTOM_LIBCXX)
target_link_libraries(crypto libcxx)
endif()
add_library(ssl ${SSL_SOURCES})
# Although libssl also provides headers that require an include directory, the
# flag is already specified by libcrypto, so we omit target_include_directories
# here.
set_property(TARGET ssl PROPERTY EXPORT_NAME SSL)
target_link_libraries(ssl crypto)
add_library(decrepit ${DECREPIT_SOURCES})
target_link_libraries(decrepit crypto ssl)
add_library(test_support_lib STATIC
${TEST_SUPPORT_SOURCES} ${TEST_SUPPORT_SOURCES_ASM_USED})
if(LIBUNWIND_FOUND)
target_compile_options(test_support_lib PRIVATE ${LIBUNWIND_CFLAGS_OTHER})
target_include_directories(test_support_lib PRIVATE ${LIBUNWIND_INCLUDE_DIRS})
target_link_libraries(test_support_lib ${LIBUNWIND_LDFLAGS})
endif()
if(WIN32)
target_link_libraries(test_support_lib dbghelp)
endif()
target_link_libraries(test_support_lib boringssl_gtest crypto)
# urandom_test is a separate binary because it needs to be able to observe the
# PRNG initialisation, which means that it can't have other tests running before
# it does.
add_executable(urandom_test ${URANDOM_TEST_SOURCES})
target_link_libraries(urandom_test test_support_lib boringssl_gtest crypto)
add_dependencies(all_tests urandom_test)
add_executable(crypto_test ${CRYPTO_TEST_SOURCES})
target_link_libraries(crypto_test test_support_lib boringssl_gtest crypto)
add_dependencies(all_tests crypto_test)
add_executable(ssl_test ${SSL_TEST_SOURCES})
target_link_libraries(ssl_test test_support_lib boringssl_gtest ssl crypto)
add_dependencies(all_tests ssl_test)
add_executable(decrepit_test ${DECREPIT_TEST_SOURCES})
target_link_libraries(decrepit_test test_support_lib boringssl_gtest
decrepit crypto)
add_dependencies(all_tests decrepit_test)
if(APPLE)
set(PKI_CXX_FLAGS "-fno-aligned-new")
endif()
add_library(pki ${PKI_SOURCES})
target_link_libraries(pki crypto)
add_executable(pki_test ${PKI_TEST_SOURCES})
target_link_libraries(pki_test test_support_lib boringssl_gtest pki crypto)
add_dependencies(all_tests pki_test)
# The PKI library requires C++17, but we haven't required this everywhere yet.
# TODO(crbug.com/42290600): Remove the C++17 bits.
set_target_properties(
pki pki_test
PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED YES
COMPILE_FLAGS "${PKI_CXX_FLAGS}")
add_executable(bssl ${BSSL_SOURCES})
target_link_libraries(bssl ssl crypto)
# Historically, targets were built in subdirectories. For compatibility with
# existing tools, we, for now, copy the targets into the subdirectories. This
# will be removed sometime in 2024.
copy_post_build(crypto crypto crypto_test urandom_test)
copy_post_build(ssl ssl ssl_test)
copy_post_build(decrepit decrepit decrepit_test)
copy_post_build(tool bssl)
if(FUZZ)
if(LIBFUZZER_FROM_DEPS)
file(GLOB LIBFUZZER_SOURCES "util/bot/libFuzzer/*.cpp")
add_library(Fuzzer STATIC ${LIBFUZZER_SOURCES})
# libFuzzer does not pass our aggressive warnings. It also must be built
# without -fsanitize-coverage options or clang crashes.
set_target_properties(
Fuzzer PROPERTIES
COMPILE_FLAGS "-Wno-shadow -Wno-format-nonliteral -Wno-missing-prototypes -fsanitize-coverage=0"
# libFuzzer requires C++17, but we haven't required this everywhere yet.
# TODO(crbug.com/42290600): Remove this.
CXX_STANDARD 17
CXX_STANDARD_REQUIRED TRUE
)
endif()
add_subdirectory(fuzz)
endif()
if(RUST_BINDINGS)
find_program(BINDGEN_EXECUTABLE bindgen)
if(NOT BINDGEN_EXECUTABLE)
message(FATAL_ERROR "Could not find bindgen but was asked to generate Rust bindings.")
else()
add_subdirectory(rust)
endif()
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(HANDSHAKER_ARGS "-handshaker-path" $<TARGET_FILE:handshaker>)
endif()
if(FIPS)
add_custom_target(
acvp_tests
COMMAND ${GO_EXECUTABLE} build -o ${CMAKE_CURRENT_BINARY_DIR}/acvptool
boringssl.googlesource.com/boringssl/util/fipstools/acvp/acvptool
COMMAND ${GO_EXECUTABLE} build -o ${CMAKE_CURRENT_BINARY_DIR}/testmodulewrapper
boringssl.googlesource.com/boringssl/util/fipstools/acvp/acvptool/testmodulewrapper
COMMAND cd util/fipstools/acvp/acvptool/test &&
${GO_EXECUTABLE} run check_expected.go
-tool ${CMAKE_CURRENT_BINARY_DIR}/acvptool
-module-wrappers modulewrapper:$<TARGET_FILE:modulewrapper>,testmodulewrapper:${CMAKE_CURRENT_BINARY_DIR}/testmodulewrapper
-tests tests.json
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
DEPENDS modulewrapper
USES_TERMINAL)
add_custom_target(
fips_specific_tests_if_any
DEPENDS acvp_tests
)
else()
add_custom_target(fips_specific_tests_if_any)
endif()
file(STRINGS util/go_tests.txt GO_TESTS)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS
util/go_tests.txt)
if(GO_EXECUTABLE)
add_custom_target(
run_tests
COMMAND ${CMAKE_COMMAND} -E echo "Running Go tests"
COMMAND ${GO_EXECUTABLE} test ${GO_TESTS}
COMMAND ${CMAKE_COMMAND} -E echo
COMMAND ${CMAKE_COMMAND} -E echo "Running unit tests"
COMMAND ${GO_EXECUTABLE} run util/all_tests.go -build-dir
${CMAKE_CURRENT_BINARY_DIR}
COMMAND ${CMAKE_COMMAND} -E echo
COMMAND ${CMAKE_COMMAND} -E echo "Running SSL tests"
COMMAND cd ssl/test/runner &&
${GO_EXECUTABLE} test -shim-path $<TARGET_FILE:bssl_shim>
${HANDSHAKER_ARGS} ${RUNNER_ARGS}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
DEPENDS all_tests bssl_shim handshaker fips_specific_tests_if_any
USES_TERMINAL)
else()
add_custom_target(
run_tests
COMMAND ${CMAKE_COMMAND} -E echo "Running tests requires Go"
COMMAND ${CMAKE_COMMAND} -E false)
endif()
if(INSTALL_ENABLED)
install(TARGETS crypto ssl EXPORT OpenSSLTargets)
install(TARGETS bssl)
install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(EXPORT OpenSSLTargets
FILE OpenSSLTargets.cmake
NAMESPACE OpenSSL::
DESTINATION lib/cmake/OpenSSL)
install(FILES cmake/OpenSSLConfig.cmake DESTINATION lib/cmake/OpenSSL)
endif()