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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.5.1)
if(CMAKE_VERSION VERSION_LESS 3.12)
cmake_policy(VERSION ${CMAKE_VERSION})
else()
cmake_policy(VERSION 3.5.1...3.13.2)
endif()
message(STATUS "Using CMake version ${CMAKE_VERSION}")
# If not specified on the command line, enable C11 as the default
# Configuration items that affect the global compiler environment standards
# should be issued before the "project" command.
if(NOT CMAKE_C_STANDARD)
set(CMAKE_C_STANDARD 11) # The C standard whose features are requested to build this target
endif()
if(NOT CMAKE_C_STANDARD_REQUIRED)
set(CMAKE_C_STANDARD_REQUIRED ON) # Boolean describing whether the value of C_STANDARD is a requirement
endif()
if(NOT CMAKE_C_EXTENSIONS)
set(CMAKE_C_EXTENSIONS OFF) # Boolean specifying whether compiler specific extensions are requested
endif()
set(VALID_C_STANDARDS "99" "11")
if(NOT CMAKE_C_STANDARD IN_LIST VALID_C_STANDARDS)
MESSAGE(FATAL_ERROR "CMAKE_C_STANDARD:STRING=${CMAKE_C_STANDARD} not in known standards list\n ${VALID_C_STANDARDS}")
endif()
# Parse the full version number from zlib.h.in and include in ZLIB_FULL_VERSION
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h.in _zlib_h_contents)
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9]+.[0-9]+.[0-9]+).*\".*"
"\\1" ZLIB_HEADER_VERSION ${_zlib_h_contents})
string(REGEX REPLACE ".*#define[ \t]+ZLIBNG_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
"\\1" ZLIBNG_HEADER_VERSION ${_zlib_h_contents})
message(STATUS "ZLIB_HEADER_VERSION: ${ZLIB_HEADER_VERSION}")
message(STATUS "ZLIBNG_HEADER_VERSION: ${ZLIBNG_HEADER_VERSION}")
project(zlib VERSION ${ZLIB_HEADER_VERSION} LANGUAGES C)
include(CheckTypeSize)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckCCompilerFlag)
include(CMakeDependentOption)
include(CMakePackageConfigHelpers)
include(FeatureSummary)
include(cmake/detect-arch.cmake)
include(cmake/detect-install-dirs.cmake)
include(cmake/detect-coverage.cmake)
include(cmake/detect-intrinsics.cmake)
include(cmake/detect-sanitizer.cmake)
include(cmake/fallback-macros.cmake)
if(CMAKE_TOOLCHAIN_FILE)
message(STATUS "Using CMake toolchain: ${CMAKE_TOOLCHAIN_FILE}")
endif()
# Make sure we use an appropriate BUILD_TYPE by default, "Release" to be exact
# this should select the maximum generic optimisation on the current platform (i.e. -O3 for gcc/clang)
get_property(GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if(NOT GENERATOR_IS_MULTI_CONFIG)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING
"Choose the type of build, standard options are: Debug Release RelWithDebInfo MinSizeRel."
FORCE)
add_feature_info(CMAKE_BUILD_TYPE 1 "Build type: ${CMAKE_BUILD_TYPE} (default)")
else()
add_feature_info(CMAKE_BUILD_TYPE 1 "Build type: ${CMAKE_BUILD_TYPE} (selected)")
endif()
endif()
#
# Options parsing
#
option(WITH_GZFILEOP "Compile with support for gzFile related functions" ON)
option(ZLIB_COMPAT "Compile with zlib compatible API" OFF)
option(ZLIB_ENABLE_TESTS "Build test binaries" ON)
option(ZLIBNG_ENABLE_TESTS "Test zlib-ng specific API" ON)
option(WITH_GTEST "Build gtest_zlib" ON)
option(WITH_FUZZERS "Build test/fuzz" OFF)
option(WITH_BENCHMARKS "Build test/benchmarks" OFF)
option(WITH_BENCHMARK_APPS "Build application benchmarks" OFF)
option(WITH_OPTIM "Build with optimisation" ON)
option(WITH_REDUCED_MEM "Reduced memory usage for special cases (reduces performance)" OFF)
option(WITH_NEW_STRATEGIES "Use new strategies" ON)
option(WITH_NATIVE_INSTRUCTIONS
"Instruct the compiler to use the full instruction set on this host (gcc/clang -march=native)" OFF)
option(WITH_RUNTIME_CPU_DETECTION "Build with runtime detection of CPU architecture" ON)
option(WITH_MAINTAINER_WARNINGS "Build with project maintainer warnings" OFF)
option(WITH_CODE_COVERAGE "Enable code coverage reporting" OFF)
option(WITH_INFLATE_STRICT "Build with strict inflate distance checking" OFF)
option(WITH_INFLATE_ALLOW_INVALID_DIST "Build with zero fill for inflate invalid distances" OFF)
option(WITH_UNALIGNED "Support unaligned reads on platforms that support it" ON)
set(ZLIB_SYMBOL_PREFIX "" CACHE STRING "Give this prefix to all publicly exported symbols.
Useful when embedding into a larger library.
Default is no prefix (empty prefix).")
# Add multi-choice option
set(WITH_SANITIZER AUTO CACHE STRING "Enable sanitizer support")
set_property(CACHE WITH_SANITIZER PROPERTY STRINGS "Memory" "Address" "Undefined" "Thread")
if(BASEARCH_ARM_FOUND)
option(WITH_ACLE "Build with ACLE" ON)
option(WITH_NEON "Build with NEON intrinsics" ON)
cmake_dependent_option(WITH_ARMV6 "Build with ARMv6 SIMD" ON "NOT ARCH STREQUAL \"aarch64\"" OFF)
elseif(BASEARCH_PPC_FOUND)
option(WITH_ALTIVEC "Build with AltiVec (VMX) optimisations for PowerPC" ON)
option(WITH_POWER8 "Build with optimisations for POWER8" ON)
option(WITH_POWER9 "Build with optimisations for POWER9" ON)
elseif(BASEARCH_RISCV_FOUND)
option(WITH_RVV "Build with RVV intrinsics" ON)
elseif(BASEARCH_S360_FOUND)
option(WITH_DFLTCC_DEFLATE "Build with DFLTCC intrinsics for compression on IBM Z" OFF)
option(WITH_DFLTCC_INFLATE "Build with DFLTCC intrinsics for decompression on IBM Z" OFF)
option(WITH_CRC32_VX "Build with vectorized CRC32 on IBM Z" ON)
elseif(BASEARCH_X86_FOUND)
option(WITH_SSE2 "Build with SSE2" ON)
cmake_dependent_option(WITH_SSSE3 "Build with SSSE3" ON "WITH_SSE2" OFF)
cmake_dependent_option(WITH_SSE42 "Build with SSE42" ON "WITH_SSSE3" OFF)
cmake_dependent_option(WITH_PCLMULQDQ "Build with PCLMULQDQ" ON "WITH_SSE42" OFF)
cmake_dependent_option(WITH_AVX2 "Build with AVX2" ON "WITH_SSE42" OFF)
cmake_dependent_option(WITH_AVX512 "Build with AVX512" ON "WITH_AVX2" OFF)
cmake_dependent_option(WITH_AVX512VNNI "Build with AVX512 VNNI extensions" ON "WITH_AVX512" OFF)
cmake_dependent_option(WITH_VPCLMULQDQ "Build with VPCLMULQDQ" ON "WITH_PCLMULQDQ;WITH_AVX512" OFF)
endif()
option(INSTALL_UTILS "Copy minigzip and minideflate during install" OFF)
mark_as_advanced(FORCE
ZLIB_SYMBOL_PREFIX
WITH_REDUCED_MEM
WITH_ACLE WITH_NEON
WITH_ARMV6
WITH_DFLTCC_DEFLATE
WITH_DFLTCC_INFLATE
WITH_CRC32_VX
WITH_AVX2 WITH_SSE2
WITH_SSSE3 WITH_SSE42
WITH_PCLMULQDQ
WITH_ALTIVEC
WITH_POWER8
WITH_POWER9
WITH_RVV
WITH_INFLATE_STRICT
WITH_INFLATE_ALLOW_INVALID_DIST
WITH_UNALIGNED
INSTALL_UTILS
)
if(ZLIB_COMPAT)
add_definitions(-DZLIB_COMPAT)
set(WITH_GZFILEOP ON)
set(SUFFIX "")
set(ZLIB_FULL_VERSION ${ZLIB_HEADER_VERSION}.zlib-ng)
set(EXPORT_NAME ZLIB)
else()
set(SUFFIX "-ng")
set(ZLIB_FULL_VERSION ${ZLIBNG_HEADER_VERSION})
set(EXPORT_NAME zlib-ng)
endif()
if(WITH_GZFILEOP)
add_definitions(-DWITH_GZFILEOP)
endif()
if(CMAKE_C_COMPILER_ID MATCHES "^Intel")
if(CMAKE_HOST_UNIX)
set(WARNFLAGS -Wall)
set(WARNFLAGS_MAINTAINER -Wall -Wcheck -Wremarks)
set(WARNFLAGS_DISABLE)
else()
set(WARNFLAGS /Wall)
set(WARNFLAGS_MAINTAINER /W5)
set(WARNFLAGS_DISABLE)
endif()
check_c_compiler_flag(-diag-disable=10441 HAVE_DIAG_10441)
if(HAVE_DIAG_10441)
list(APPEND WARNFLAGS_DISABLE "-diag-disable=10441")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -diag-disable=10441")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -diag-disable=10441")
endif()
elseif(MSVC)
# Minimum supported MSVC version is 1800 = Visual Studio 12.0/2013
# See also https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
if(MSVC_VERSION VERSION_LESS 1800)
message(SEND_ERROR "Unsupported Visual Studio compiler version (requires 2013 or later).")
endif()
# TODO. ICC can be used through MSVC. I'm not sure if we'd ever see that combination
# (who'd use cmake from an IDE...) but checking for ICC before checking for MSVC should
# avoid mistakes.
# /Oi ?
set(WARNFLAGS /W3)
set(WARNFLAGS_MAINTAINER /W4)
set(WARNFLAGS_DISABLE)
if(BASEARCH_ARM_FOUND)
add_definitions(-D_ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE)
if(NOT "${ARCH}" MATCHES "aarch64")
set(NEONFLAG "/arch:VFPv4")
endif()
endif()
elseif(CMAKE_C_COMPILER_ID MATCHES "GNU" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
# Enable warnings in GCC and Clang
set(WARNFLAGS -Wall)
set(WARNFLAGS_MAINTAINER -Wextra)
set(WARNFLAGS_DISABLE)
# Check whether -fno-lto is available
set(CMAKE_REQUIRED_FLAGS "-fno-lto")
check_c_source_compiles(
"int main() { return 0; }"
FNO_LTO_AVAILABLE FAIL_REGEX "not supported")
set(CMAKE_REQUIRED_FLAGS)
if(FNO_LTO_AVAILABLE)
set(ZNOLTOFLAG "-fno-lto")
endif()
if(NOT WITH_NATIVE_INSTRUCTIONS)
if(BASEARCH_ARM_FOUND)
if("${ARCH}" MATCHES "arm" AND NOT CMAKE_C_FLAGS MATCHES "-mfloat-abi")
# Auto-detect support for ARM floating point ABI
check_include_file(features.h HAVE_FEATURES_H)
if(HAVE_FEATURES_H)
set(CMAKE_REQUIRED_FLAGS -mfloat-abi=softfp)
check_c_source_compiles(
"#include <features.h>
int main() { return 0; }"
HAVE_FLOATABI_SOFTFP)
if(HAVE_FLOATABI_SOFTFP)
set(FLOATABI -mfloat-abi=softfp)
else()
set(CMAKE_REQUIRED_FLAGS -mfloat-abi=hard)
check_c_source_compiles(
"#include <features.h>
int main() { return 0; }"
HAVE_FLOATABI_HARD)
if(HAVE_FLOATABI_HARD)
set(FLOATABI -mfloat-abi=hard)
endif()
endif()
set(CMAKE_REQUIRED_FLAGS)
endif()
if(FLOATABI)
message(STATUS "ARM floating point arch: ${FLOATABI}")
add_compile_options(${FLOATABI})
else()
message(STATUS "ARM floating point arch not auto-detected")
endif()
endif()
endif()
# Disable LTO unless Native Instructions are enabled
if(FNO_LTO_AVAILABLE)
set(NOLTOFLAG ${ZNOLTOFLAG})
endif()
endif()
if(MINGW)
# Add `-Wno-pedantic-ms-format` only if the toolchain supports it
check_c_compiler_flag(-Wno-pedantic-ms-format HAVE_NO_PEDANTIC_MS_FORMAT)
if(HAVE_NO_PEDANTIC_MS_FORMAT)
list(APPEND WARNFLAGS_DISABLE -Wno-pedantic-ms-format)
endif()
endif()
endif()
# Set native march/mcpu
if(WITH_NATIVE_INSTRUCTIONS)
if(NATIVE_ARCH_OVERRIDE)
message(STATUS "WARNING: WITH_NATIVE_INSTRUCTIONS enabled, but running with NATIVE_ARCH_OVERRIDE: ${NATIVE_ARCH_OVERRIDE}")
set(NATIVEFLAG "${NATIVE_ARCH_OVERRIDE}")
else()
if(CMAKE_C_COMPILER_ID MATCHES "GNU" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
check_c_compiler_flag(-march=native HAVE_MARCH_NATIVE)
if(HAVE_MARCH_NATIVE)
set(NATIVEFLAG "-march=native")
else()
check_c_compiler_flag(-mcpu=native HAVE_MCPU_NATIVE)
if(HAVE_MCPU_NATIVE)
set(NATIVEFLAG "-mcpu=native")
endif()
endif()
# Fall through
endif()
endif()
if(NATIVEFLAG)
# Apply flags to all source files and compilation checks
if(WIN32)
separate_arguments(NATIVEOPTIONS WINDOWS_COMMAND "${NATIVEFLAG}")
else()
separate_arguments(NATIVEOPTIONS UNIX_COMMAND "${NATIVEFLAG}")
endif()
add_compile_options(${NATIVEOPTIONS})
set(WITH_RUNTIME_CPU_DETECTION OFF)
else()
message(STATUS "Ignoring WITH_NATIVE_INSTRUCTIONS; not implemented yet on this configuration")
set(WITH_NATIVE_INSTRUCTIONS OFF)
endif()
endif()
# Compile without functable or CPU detection
if(NOT WITH_RUNTIME_CPU_DETECTION)
if(MSVC AND BASEARCH_X86_FOUND)
message(STATUS "WARNING: Microsoft Visual Studio does not support compile time detection of CPU features for \"/arch\" before \"AVX\"")
# Workaround for MSVC. By default MSVC does not define the __SSE*__ macros.
# Fix it if AVX is enabled.
set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG}")
check_c_source_compiles(
"#ifndef __AVX__
# error \"AVX is not enabled.\"
#endif
int main(void) { return 0; }"
MSVC_IS_ENABLED_AVX
)
set(CMAKE_REQUIRED_FLAGS)
if(MSVC_IS_ENABLED_AVX)
add_definitions(
-D__SSE__=1
-D__SSE2__=1
-D__SSE3__=1
-D__SSSE3__=1
-D__SSE4_1__=1
-D__SSE4_2__=1
-D__PCLMUL__=1
)
endif()
endif()
add_definitions(-DDISABLE_RUNTIME_CPU_DETECTION)
endif()
# Force disable LTO if WITH_NATIVE_INSTRUCTIONS is not active
if(NOT WITH_NATIVE_INSTRUCTIONS)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION OFF)
foreach(_cfg_name IN LISTS CMAKE_CONFIGURATION_TYPES)
string(TOUPPER "${_cfg_name}" _cfg_name_uc)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_${_cfg_name_uc} OFF)
endforeach()
endif()
# Set architecture alignment requirements
if(NOT WITH_UNALIGNED)
add_definitions(-DNO_UNALIGNED)
message(STATUS "Unaligned reads manually disabled")
endif()
# Apply warning compiler flags
if(WITH_MAINTAINER_WARNINGS)
add_compile_options(${WARNFLAGS} ${WARNFLAGS_MAINTAINER} ${WARNFLAGS_DISABLE})
else()
add_compile_options(${WARNFLAGS} ${WARNFLAGS_DISABLE})
endif()
# Set code coverage compiler flags
if(WITH_CODE_COVERAGE)
add_code_coverage()
endif()
# Replace optimization level 3 added by default with level 2
if(NOT WITH_CODE_COVERAGE AND NOT MSVC AND NOT CMAKE_C_FLAGS MATCHES "([\\/\\-]O)3")
string(REGEX REPLACE "([\\/\\-]O)3" "\\12"
CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
endif()
#
# Check for standard/system includes
#
check_include_file(arm_acle.h HAVE_ARM_ACLE_H)
if(HAVE_ARM_ACLE_H)
add_definitions(-DHAVE_ARM_ACLE_H)
endif()
check_include_file(sys/auxv.h HAVE_SYS_AUXV_H)
if(HAVE_SYS_AUXV_H)
add_definitions(-DHAVE_SYS_AUXV_H)
endif()
check_include_file(sys/sdt.h HAVE_SYS_SDT_H)
if(HAVE_SYS_SDT_H)
add_definitions(-DHAVE_SYS_SDT_H)
endif()
check_include_file(unistd.h HAVE_UNISTD_H)
#
# Check for Linux includes
#
check_include_file(linux/auxvec.h HAVE_LINUX_AUXVEC_H)
if(HAVE_LINUX_AUXVEC_H)
add_definitions(-DHAVE_LINUX_AUXVEC_H)
endif()
#
# Check to see if we have large file support
#
set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1 -D__USE_LARGEFILE64)
check_type_size(off64_t OFF64_T)
if(HAVE_OFF64_T)
add_definitions(-D_LARGEFILE64_SOURCE=1 -D__USE_LARGEFILE64)
else()
check_type_size(_off64_t _OFF64_T)
if(HAVE__OFF64_T)
add_definitions(-D_LARGEFILE64_SOURCE=1 -D__USE_LARGEFILE64)
else()
check_type_size(__off64_t __OFF64_T)
endif()
endif()
set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
#
# Check for fseeko and other optional functions
#
check_function_exists(fseeko HAVE_FSEEKO)
if(NOT HAVE_FSEEKO)
add_definitions(-DNO_FSEEKO)
endif()
check_function_exists(strerror HAVE_STRERROR)
if(NOT HAVE_STRERROR)
add_definitions(-DNO_STRERROR)
endif()
set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_C_SOURCE=200112L)
check_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
if(HAVE_POSIX_MEMALIGN)
add_definitions(-DHAVE_POSIX_MEMALIGN)
endif()
set(CMAKE_REQUIRED_DEFINITIONS)
set(CMAKE_REQUIRED_DEFINITIONS -D_ISOC11_SOURCE=1)
check_symbol_exists(aligned_alloc stdlib.h HAVE_ALIGNED_ALLOC)
if(HAVE_ALIGNED_ALLOC)
add_definitions(-DHAVE_ALIGNED_ALLOC)
endif()
set(CMAKE_REQUIRED_DEFINITIONS)
if(WITH_SANITIZER STREQUAL "Address")
add_address_sanitizer()
elseif(WITH_SANITIZER STREQUAL "Memory")
add_memory_sanitizer()
elseif(WITH_SANITIZER STREQUAL "Thread")
add_thread_sanitizer()
elseif(WITH_SANITIZER STREQUAL "Undefined")
add_undefined_sanitizer()
endif()
#
# Check whether compiler supports -fno-semantic-interposition parameter
#
check_c_compiler_flag(-fno-semantic-interposition HAVE_NO_INTERPOSITION)
#
# Check if we can hide zlib internal symbols that are linked between separate source files using hidden
#
check_c_source_compiles(
"#define Z_INTERNAL __attribute__((visibility (\"hidden\")))
int Z_INTERNAL foo;
int main() {
return 0;
}"
HAVE_ATTRIBUTE_VISIBILITY_HIDDEN FAIL_REGEX "visibility")
if(HAVE_ATTRIBUTE_VISIBILITY_HIDDEN)
add_definitions(-DHAVE_VISIBILITY_HIDDEN)
endif()
#
# Check if we can hide zlib internal symbols that are linked between separate source files using internal
#
check_c_source_compiles(
"#define Z_INTERNAL __attribute__((visibility (\"internal\")))
int Z_INTERNAL foo;
int main() {
return 0;
}"
HAVE_ATTRIBUTE_VISIBILITY_INTERNAL FAIL_REGEX "visibility")
if(HAVE_ATTRIBUTE_VISIBILITY_INTERNAL)
add_definitions(-DHAVE_VISIBILITY_INTERNAL)
endif()
#
# Check for __attribute__((aligned(x))) support in the compiler
#
check_c_source_compiles(
"int main(void) {
__attribute__((aligned(8))) int test = 0;
(void)test;
return 0;
}"
HAVE_ATTRIBUTE_ALIGNED FAIL_REGEX "aligned")
if(HAVE_ATTRIBUTE_ALIGNED)
add_definitions(-DHAVE_ATTRIBUTE_ALIGNED)
endif()
#
# check for __builtin_ctz() support in the compiler
#
check_c_source_compiles(
"int main(void) {
unsigned int zero = 0;
long test = __builtin_ctz(zero);
(void)test;
return 0;
}"
HAVE_BUILTIN_CTZ
)
if(HAVE_BUILTIN_CTZ)
add_definitions(-DHAVE_BUILTIN_CTZ)
endif()
#
# check for __builtin_ctzll() support in the compiler
#
check_c_source_compiles(
"int main(void) {
unsigned int zero = 0;
long test = __builtin_ctzll(zero);
(void)test;
return 0;
}"
HAVE_BUILTIN_CTZLL
)
if(HAVE_BUILTIN_CTZLL)
add_definitions(-DHAVE_BUILTIN_CTZLL)
endif()
#
# check for ptrdiff_t support
#
check_c_source_compiles(
"#include <stddef.h>
int main() {
ptrdiff_t *a;
(void)a;
return 0;
}"
HAVE_PTRDIFF_T
)
if(NOT HAVE_PTRDIFF_T)
set(NEED_PTRDIFF_T 1)
check_type_size("void *" SIZEOF_DATA_PTR)
message(STATUS "sizeof(void *) is ${SIZEOF_DATA_PTR} bytes")
if(${SIZEOF_DATA_PTR} MATCHES "4")
set(PTRDIFF_TYPE "uint32_t")
elseif(${SIZEOF_DATA_PTR} MATCHES "8")
set(PTRDIFF_TYPE "uint64_t")
else()
message(FATAL_ERROR "sizeof(void *) is neither 32 nor 64 bit")
endif()
endif()
add_compile_options($<$<CONFIG:Debug>:-DZLIB_DEBUG>)
if(MSVC)
set(CMAKE_DEBUG_POSTFIX "d")
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
endif()
if(BASEARCH_X86_FOUND)
# FORCE_SSE2 option will only be shown if HAVE_SSE2_INTRIN is true
if("${ARCH}" MATCHES "i[3-6]86")
cmake_dependent_option(FORCE_SSE2 "Always assume CPU is SSE2 capable" OFF "HAVE_SSE2_INTRIN" OFF)
endif()
endif()
#
# Enable deflate_quick at level 1
#
if(NOT WITH_NEW_STRATEGIES)
add_definitions(-DNO_QUICK_STRATEGY)
endif()
#
# Enable deflate_medium at level 4-6
#
if(NOT WITH_NEW_STRATEGIES)
add_definitions(-DNO_MEDIUM_STRATEGY)
endif()
#
# Enable inflate compilation options
#
if(WITH_INFLATE_STRICT)
add_definitions(-DINFLATE_STRICT)
message(STATUS "Inflate strict distance checking enabled")
endif()
if(WITH_INFLATE_ALLOW_INVALID_DIST)
add_definitions(-DINFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR)
message(STATUS "Inflate zero data for invalid distances enabled")
endif()
#
# Enable reduced memory configuration
#
if(WITH_REDUCED_MEM)
add_definitions(-DHASH_SIZE=32768u -DGZBUFSIZE=8192 -DNO_LIT_MEM)
message(STATUS "Configured for reduced memory environment")
endif()
set(GENERIC_ARCHDIR "arch/generic")
set(ZLIB_ARCH_SRCS)
set(ZLIB_ARCH_HDRS ${GENERIC_ARCHDIR}/generic_functions.h)
if(BASEARCH_ARM_FOUND)
set(ARCHDIR "arch/arm")
elseif(BASEARCH_PPC_FOUND)
set(ARCHDIR "arch/power")
elseif(BASEARCH_RISCV_FOUND)
set(ARCHDIR "arch/riscv")
elseif(BASEARCH_S360_FOUND)
set(ARCHDIR "arch/s390")
elseif(BASEARCH_X86_FOUND)
set(ARCHDIR "arch/x86")
if(NOT ${ARCH} MATCHES "x86_64")
add_feature_info(SSE2 1 "Support the SSE2 instruction set, using \"${SSE2FLAG}\"")
endif()
else()
set(ARCHDIR ${GENERIC_ARCHDIR})
message(STATUS "No optimized architecture: using ${ARCHDIR}")
endif()
if(WITH_OPTIM)
if(BASEARCH_ARM_FOUND)
add_definitions(-DARM_FEATURES)
if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
if("${ARCH}" MATCHES "aarch64")
check_c_source_compiles(
"#include <sys/auxv.h>
int main() {
return (getauxval(AT_HWCAP) & HWCAP_CRC32);
}"
ARM_AUXV_HAS_CRC32
)
if(ARM_AUXV_HAS_CRC32)
add_definitions(-DARM_AUXV_HAS_CRC32)
else()
message(STATUS "HWCAP_CRC32 not present in sys/auxv.h; cannot detect support at runtime.")
endif()
else()
check_c_source_compiles(
"#include <sys/auxv.h>
int main() {
return (getauxval(AT_HWCAP2) & HWCAP2_CRC32);
}"
ARM_AUXV_HAS_CRC32
)
if(ARM_AUXV_HAS_CRC32)
add_definitions(-DARM_AUXV_HAS_CRC32)
else()
check_c_source_compiles(
"#include <sys/auxv.h>
#include <asm/hwcap.h>
int main() {
return (getauxval(AT_HWCAP2) & HWCAP2_CRC32);
}"
ARM_HWCAP_HAS_CRC32
)
if (ARM_HWCAP_HAS_CRC32)
add_definitions(-DARM_AUXV_HAS_CRC32 -DARM_ASM_HWCAP)
else()
message(STATUS "HWCAP2_CRC32 not present in sys/auxv.h; cannot detect support at runtime.")
endif()
endif()
check_c_source_compiles(
"#include <sys/auxv.h>
int main() {
return (getauxval(AT_HWCAP) & HWCAP_ARM_NEON);
}"
ARM_AUXV_HAS_NEON
)
if(ARM_AUXV_HAS_NEON)
add_definitions(-DARM_AUXV_HAS_NEON)
else()
check_c_source_compiles(
"#include <sys/auxv.h>
int main() {
return (getauxval(AT_HWCAP) & HWCAP_NEON);
}"
ARM_AUXV_HAS_NEON
)
if (ARM_AUXV_HAS_NEON)
add_definitions(-DARM_AUXV_HAS_NEON)
else()
message(STATUS "Neither HWCAP_ARM_NEON or HWCAP_NEON present in sys/auxv.h; cannot detect support at runtime.")
endif()
endif()
endif()
endif()
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/arm_features.h ${ARCHDIR}/arm_functions.h)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/arm_features.c)
if(WITH_ACLE)
check_acle_compiler_flag()
if(HAVE_ACLE_FLAG)
add_definitions(-DARM_ACLE)
set(ACLE_SRCS ${ARCHDIR}/crc32_acle.c)
set_property(SOURCE ${ACLE_SRCS} PROPERTY COMPILE_FLAGS "${ACLEFLAG} ${NOLTOFLAG}")
list(APPEND ZLIB_ARCH_SRCS ${ACLE_SRCS})
add_feature_info(ACLE_CRC 1 "Support ACLE optimized CRC hash generation, using \"${ACLEFLAG}\"")
else()
set(WITH_ACLE OFF)
endif()
else()
set(WITH_ACLE OFF)
endif()
if(WITH_NEON)
check_neon_compiler_flag()
if(NEON_AVAILABLE)
add_definitions(-DARM_NEON)
set(NEON_SRCS ${ARCHDIR}/adler32_neon.c ${ARCHDIR}/chunkset_neon.c
${ARCHDIR}/compare256_neon.c ${ARCHDIR}/slide_hash_neon.c)
list(APPEND ZLIB_ARCH_SRCS ${NEON_SRCS})
set_property(SOURCE ${NEON_SRCS} PROPERTY COMPILE_FLAGS "${NEONFLAG} ${NOLTOFLAG}")
if(MSVC)
add_definitions(-D__ARM_NEON__)
endif()
add_feature_info(NEON_ADLER32 1 "Support NEON instructions in adler32, using \"${NEONFLAG}\"")
add_feature_info(NEON_SLIDEHASH 1 "Support NEON instructions in slide_hash, using \"${NEONFLAG}\"")
check_neon_ld4_intrinsics()
if(NEON_HAS_LD4)
add_definitions(-DARM_NEON_HASLD4)
endif()
else()
set(WITH_NEON OFF)
endif()
endif()
if(WITH_ARMV6)
check_armv6_compiler_flag()
if(HAVE_ARMV6_INLINE_ASM OR HAVE_ARMV6_INTRIN)
add_definitions(-DARM_SIMD)
set(ARMV6_SRCS ${ARCHDIR}/slide_hash_armv6.c)
set_property(SOURCE ${ARMV6_SRCS} PROPERTY COMPILE_FLAGS "${ARMV6FLAG} ${NOLTOFLAG}")
list(APPEND ZLIB_ARCH_SRCS ${ARMV6_SRCS})
add_feature_info(ARMV6 1 "Support ARMv6 SIMD instructions in slide_hash, using \"${ARMV6FLAG}\"")
if(HAVE_ARMV6_INTRIN)
add_definitions(-DARM_SIMD_INTRIN)
endif()
else()
set(WITH_ARMV6 OFF)
endif()
else()
set(WITH_ARMV6 OFF)
endif()
elseif(BASEARCH_PPC_FOUND)
# Common arch detection code
if(WITH_ALTIVEC)
check_ppc_intrinsics()
endif()
if(WITH_POWER8)
check_power8_intrinsics()
endif()
if(WITH_POWER9)
check_power9_intrinsics()
endif()
if(POWER8_NEED_AUXVEC_H OR POWER9_NEED_AUXVEC_H)
add_definitions(-DPOWER_NEED_AUXVEC_H)
endif()
if(HAVE_POWER8_INTRIN OR HAVE_POWER9_INTRIN)
add_definitions(-DPOWER_FEATURES)
endif()
if(HAVE_VMX OR HAVE_POWER8_INTRIN OR HAVE_POWER9_INTRIN)
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/power_features.h ${ARCHDIR}/power_functions.h)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/power_features.c)
endif()
# VMX specific options and files
if(WITH_ALTIVEC)
if(HAVE_VMX)
add_definitions(-DPPC_FEATURES)
if(HAVE_ALTIVEC)
add_definitions(-DPPC_VMX)
set(PPC_SRCS ${ARCHDIR}/adler32_vmx.c ${ARCHDIR}/slide_hash_vmx.c)
list(APPEND ZLIB_ARCH_SRCS ${PPC_SRCS})
add_feature_info(ALTIVEC 1 "Support the AltiVec instruction set, using \"-maltivec\"")
set_property(SOURCE ${PPC_SRCS} PROPERTY COMPILE_FLAGS "${PPCFLAGS}")
else()
set(WITH_ALTIVEC OFF)
endif()
endif()
endif()
# Power8 specific options and files
if(WITH_POWER8)
if(HAVE_POWER8_INTRIN)
add_definitions(-DPOWER8_VSX)
set(POWER8_SRCS ${ARCHDIR}/adler32_power8.c ${ARCHDIR}/chunkset_power8.c ${ARCHDIR}/slide_hash_power8.c)
if("${ARCH}" MATCHES "powerpc64(le)?")
add_definitions(-DPOWER8_VSX_CRC32)
list(APPEND POWER8_SRCS ${ARCHDIR}/crc32_power8.c)
endif()
list(APPEND ZLIB_ARCH_SRCS ${POWER8_SRCS})
set_property(SOURCE ${POWER8_SRCS} PROPERTY COMPILE_FLAGS "${POWER8FLAG} ${NOLTOFLAG}")
else()
set(WITH_POWER8 OFF)
endif()
endif()
# Power9 specific options and files
if(WITH_POWER9)
if(HAVE_POWER9_INTRIN)
add_definitions(-DPOWER9)
set(POWER9_SRCS ${ARCHDIR}/compare256_power9.c)
list(APPEND ZLIB_ARCH_SRCS ${POWER9_SRCS})
set_property(SOURCE ${POWER9_SRCS} PROPERTY COMPILE_FLAGS "${POWER9FLAG} ${NOLTOFLAG}")
else()
set(WITH_POWER9 OFF)
endif()
endif()
elseif(BASEARCH_RISCV_FOUND)
if(WITH_RVV)
check_rvv_intrinsics()
if(HAVE_RVV_INTRIN)
add_definitions(-DRISCV_FEATURES)
add_definitions(-DRISCV_RVV)
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/riscv_features.h ${ARCHDIR}/riscv_functions.h)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/riscv_features.c)
# FIXME: we will not set compile flags for riscv_features.c when
# the kernels update hwcap or hwprobe for riscv
set(RVV_SRCS ${ARCHDIR}/riscv_features.c ${ARCHDIR}/adler32_rvv.c ${ARCHDIR}/chunkset_rvv.c ${ARCHDIR}/compare256_rvv.c ${ARCHDIR}/slide_hash_rvv.c)
list(APPEND ZLIB_ARCH_SRCS ${RVV_SRCS})
set_property(SOURCE ${RVV_SRCS} PROPERTY COMPILE_FLAGS "${RISCVFLAG} ${NOLTOFLAG}")
else()
set(WITH_RVV OFF)
endif()
endif()
elseif(BASEARCH_S360_FOUND)
check_s390_intrinsics()
if(HAVE_S390_INTRIN)
add_definitions(-DS390_FEATURES)
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/s390_features.h ${ARCHDIR}/s390_functions.h)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/s390_features.c)
endif()
if(WITH_DFLTCC_DEFLATE OR WITH_DFLTCC_INFLATE)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/dfltcc_common.c)
endif()
if(WITH_DFLTCC_DEFLATE)
add_definitions(-DS390_DFLTCC_DEFLATE)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/dfltcc_deflate.c)
endif()
if(WITH_DFLTCC_INFLATE)
add_definitions(-DS390_DFLTCC_INFLATE)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/dfltcc_inflate.c)
endif()
if(WITH_CRC32_VX)
check_vgfma_intrinsics()
if(HAVE_VGFMA_INTRIN)
add_definitions(-DS390_CRC32_VX)
set(CRC32_VX_SRCS ${ARCHDIR}/crc32-vx.c)
list(APPEND ZLIB_ARCH_SRCS ${CRC32_VX_SRCS})
set_property(SOURCE ${CRC32_VX_SRCS} PROPERTY COMPILE_FLAGS "${VGFMAFLAG} ${NOLTOFLAG}")
else()
set(WITH_CRC32_VX OFF)
endif()
endif()
elseif(BASEARCH_X86_FOUND)
add_definitions(-DX86_FEATURES)
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/x86_features.h ${ARCHDIR}/x86_functions.h)
list(APPEND ZLIB_ARCH_SRCS ${ARCHDIR}/x86_features.c)
if(MSVC)
list(APPEND ZLIB_ARCH_HDRS fallback_builtins.h)
endif()
check_xsave_intrinsics()
if(HAVE_XSAVE_INTRIN)
add_feature_info(XSAVE 1 "Support XSAVE intrinsics using \"${XSAVEFLAG}\"")
set_property(SOURCE ${ARCHDIR}/x86_features.c PROPERTY COMPILE_FLAGS "${XSAVEFLAG}")
if(NOT (CMAKE_C_COMPILER_ID MATCHES "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 8.2))
add_definitions(-DX86_HAVE_XSAVE_INTRIN)
endif()
endif()
if(WITH_SSE2)
check_sse2_intrinsics()
if(HAVE_SSE2_INTRIN)
add_definitions(-DX86_SSE2)
set(SSE2_SRCS ${ARCHDIR}/chunkset_sse2.c ${ARCHDIR}/compare256_sse2.c ${ARCHDIR}/slide_hash_sse2.c)
list(APPEND ZLIB_ARCH_SRCS ${SSE2_SRCS})
if(NOT ${ARCH} MATCHES "x86_64")
set_property(SOURCE ${SSE2_SRCS} PROPERTY COMPILE_FLAGS "${SSE2FLAG} ${NOLTOFLAG}")
add_feature_info(FORCE_SSE2 FORCE_SSE2 "Assume CPU is SSE2 capable")
if(FORCE_SSE2)
add_definitions(-DX86_NOCHECK_SSE2)
endif()
endif()
else()
set(WITH_SSE2 OFF)
endif()
endif()
if(WITH_SSSE3)
check_ssse3_intrinsics()
if(HAVE_SSSE3_INTRIN AND WITH_SSE2)
add_definitions(-DX86_SSSE3)
set(SSSE3_SRCS ${ARCHDIR}/adler32_ssse3.c ${ARCHDIR}/chunkset_ssse3.c)
add_feature_info(SSSE3_ADLER32 1 "Support SSSE3-accelerated adler32, using \"${SSSE3FLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${SSSE3_SRCS})
set_property(SOURCE ${SSSE3_SRCS} PROPERTY COMPILE_FLAGS "${SSSE3FLAG} ${NOLTOFLAG}")
else()
set(WITH_SSSE3 OFF)
endif()
endif()
if(WITH_SSE42)
check_sse42_intrinsics()
if(HAVE_SSE42_INTRIN AND WITH_SSSE3)
add_definitions(-DX86_SSE42)
set(SSE42_SRCS ${ARCHDIR}/adler32_sse42.c)
add_feature_info(SSE42_CRC 1 "Support SSE4.2 optimized adler32 hash generation, using \"${SSE42FLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${SSE42_SRCS})
set_property(SOURCE ${SSE42_SRCS} PROPERTY COMPILE_FLAGS "${SSE42FLAG} ${NOLTOFLAG}")
else()
set(WITH_SSE42 OFF)
endif()
endif()
if(WITH_PCLMULQDQ)
check_pclmulqdq_intrinsics()
if(HAVE_PCLMULQDQ_INTRIN AND WITH_SSE42)
add_definitions(-DX86_PCLMULQDQ_CRC)
set(PCLMULQDQ_SRCS ${ARCHDIR}/crc32_pclmulqdq.c)
add_feature_info(PCLMUL_CRC 1 "Support CRC hash generation using PCLMULQDQ, using \"${SSE42FLAG} ${PCLMULFLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${PCLMULQDQ_SRCS})
set_property(SOURCE ${PCLMULQDQ_SRCS} PROPERTY COMPILE_FLAGS "${SSE42FLAG} ${PCLMULFLAG} ${NOLTOFLAG}")
else()
set(WITH_PCLMULQDQ OFF)
endif()
endif()
if(WITH_AVX2)
check_avx2_intrinsics()
if(HAVE_AVX2_INTRIN AND WITH_SSE42)
add_definitions(-DX86_AVX2)
set(AVX2_SRCS ${ARCHDIR}/slide_hash_avx2.c)
add_feature_info(AVX2_SLIDEHASH 1 "Support AVX2 optimized slide_hash, using \"${AVX2FLAG}\"")
list(APPEND AVX2_SRCS ${ARCHDIR}/chunkset_avx2.c)
add_feature_info(AVX2_CHUNKSET 1 "Support AVX2 optimized chunkset, using \"${AVX2FLAG}\"")
list(APPEND AVX2_SRCS ${ARCHDIR}/compare256_avx2.c)
add_feature_info(AVX2_COMPARE256 1 "Support AVX2 optimized compare256, using \"${AVX2FLAG}\"")
list(APPEND AVX2_SRCS ${ARCHDIR}/adler32_avx2.c)
add_feature_info(AVX2_ADLER32 1 "Support AVX2-accelerated adler32, using \"${AVX2FLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${AVX2_SRCS})
set_property(SOURCE ${AVX2_SRCS} PROPERTY COMPILE_FLAGS "${AVX2FLAG} ${NOLTOFLAG}")
else()
set(WITH_AVX2 OFF)
endif()
endif()
if(WITH_AVX512)
check_avx512_intrinsics()
if(HAVE_AVX512_INTRIN AND WITH_AVX2)
add_definitions(-DX86_AVX512)
list(APPEND AVX512_SRCS ${ARCHDIR}/adler32_avx512.c)
add_feature_info(AVX512_ADLER32 1 "Support AVX512-accelerated adler32, using \"${AVX512FLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${AVX512_SRCS})
list(APPEND ZLIB_ARCH_HDRS ${ARCHDIR}/adler32_avx512_p.h)
set_property(SOURCE ${AVX512_SRCS} PROPERTY COMPILE_FLAGS "${AVX512FLAG} ${NOLTOFLAG}")
else()
set(WITH_AVX512 OFF)
endif()
endif()
if(WITH_AVX512VNNI)
check_avx512vnni_intrinsics()
if(HAVE_AVX512VNNI_INTRIN AND WITH_AVX2)
add_definitions(-DX86_AVX512VNNI)
add_feature_info(AVX512VNNI_ADLER32 1 "Support AVX512VNNI adler32, using \"${AVX512VNNIFLAG}\"")
list(APPEND AVX512VNNI_SRCS ${ARCHDIR}/adler32_avx512_vnni.c)
list(APPEND ZLIB_ARCH_SRCS ${AVX512VNNI_SRCS})
set_property(SOURCE ${AVX512VNNI_SRCS} PROPERTY COMPILE_FLAGS "${AVX512VNNIFLAG} ${NOLTOFLAG}")
else()
set(WITH_AVX512VNNI OFF)
endif()
endif()
if(WITH_VPCLMULQDQ)
check_vpclmulqdq_intrinsics()
if(HAVE_VPCLMULQDQ_INTRIN AND WITH_PCLMULQDQ AND WITH_AVX512)
add_definitions(-DX86_VPCLMULQDQ_CRC)
set(VPCLMULQDQ_SRCS ${ARCHDIR}/crc32_vpclmulqdq.c)
add_feature_info(VPCLMUL_CRC 1 "Support CRC hash generation using VPCLMULQDQ, using \"${PCLMULFLAG} ${VPCLMULFLAG} ${AVX512FLAG}\"")
list(APPEND ZLIB_ARCH_SRCS ${VPCLMULQDQ_SRCS})
set_property(SOURCE ${VPCLMULQDQ_SRCS} PROPERTY COMPILE_FLAGS "${PCLMULFLAG} ${VPCLMULFLAG} ${AVX512FLAG} ${NOLTOFLAG}")
else()
set(WITH_VPCLMULQDQ OFF)
endif()
endif()
endif()
endif()
message(STATUS "Architecture-specific source files: ${ZLIB_ARCH_SRCS}")
#============================================================================
# zconf.h
#============================================================================
macro(generate_cmakein input output)
file(REMOVE ${output})
file(STRINGS ${input} _lines)
foreach(_line IN LISTS _lines)
string(REGEX REPLACE "#ifdef HAVE_UNISTD_H.*" "@ZCONF_UNISTD_LINE@" _line "${_line}")
string(REGEX REPLACE "#ifdef NEED_PTRDIFF_T.*" "@ZCONF_PTRDIFF_LINE@" _line "${_line}")
if(NEED_PTRDIFF_T)
string(REGEX REPLACE "typedef PTRDIFF_TYPE" "typedef @PTRDIFF_TYPE@" _line "${_line}")
endif()
file(APPEND ${output} "${_line}\n")
endforeach()
endmacro(generate_cmakein)
generate_cmakein( ${CMAKE_CURRENT_SOURCE_DIR}/zconf${SUFFIX}.h.in ${CMAKE_CURRENT_BINARY_DIR}/zconf${SUFFIX}.h.cmakein )
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
# If we're doing an out of source build and the user has a zconf.h
# in their source tree...
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf${SUFFIX}.h)
message(STATUS "Renaming")
message(STATUS " ${CMAKE_CURRENT_SOURCE_DIR}/zconf${SUFFIX}.h")
message(STATUS "to 'zconf${SUFFIX}.h.included' because this file is included with zlib")
message(STATUS "but CMake generates it automatically in the build directory.")
file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf${SUFFIX}.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf${SUFFIX}.h.included)
endif()