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# Copyright (c) 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/compiler/compiler.gni")
if (build_with_chromium) {
import("//testing/test.gni")
}
if (current_cpu == "arm" || current_cpu == "arm64") {
import("//build/config/arm.gni")
}
config("zlib_config") {
include_dirs = [ "." ]
}
config("zlib_internal_config") {
defines = [ "ZLIB_IMPLEMENTATION" ]
if (!is_debug) {
# Build code using -O3, see: crbug.com/1084371.
configs = [ "//build/config/compiler:optimize_speed" ]
}
if (is_debug || use_libfuzzer) {
# Enable zlib's asserts in debug and fuzzer builds.
defines += [ "ZLIB_DEBUG" ]
}
}
source_set("zlib_common_headers") {
sources = [
"chromeconf.h",
"deflate.h",
"inffast.h",
"inffixed.h",
"inflate.h",
"inftrees.h",
"zconf.h",
"zlib.h",
"zutil.h",
]
}
use_arm_neon_optimizations = false
if ((current_cpu == "arm" || current_cpu == "arm64") &&
!(is_win && !is_clang)) {
# TODO(richard.townsend@arm.com): Optimizations temporarily disabled for
# Windows on Arm MSVC builds, see http://crbug.com/v8/10012.
if (arm_use_neon) {
use_arm_neon_optimizations = true
}
}
use_x86_x64_optimizations =
(current_cpu == "x86" || current_cpu == "x64") && !is_ios
config("zlib_adler32_simd_config") {
if (use_x86_x64_optimizations) {
defines = [ "ADLER32_SIMD_SSSE3" ]
if (is_win) {
defines += [ "X86_WINDOWS" ]
} else {
defines += [ "X86_NOT_WINDOWS" ]
}
}
if (use_arm_neon_optimizations) {
defines = [ "ADLER32_SIMD_NEON" ]
}
}
source_set("zlib_adler32_simd") {
visibility = [ ":*" ]
if (use_x86_x64_optimizations) {
sources = [
"adler32_simd.c",
"adler32_simd.h",
]
if (!is_win || is_clang) {
cflags = [ "-mssse3" ]
}
}
if (use_arm_neon_optimizations) {
sources = [
"adler32_simd.c",
"adler32_simd.h",
]
}
configs += [ ":zlib_internal_config" ]
public_configs = [ ":zlib_adler32_simd_config" ]
public_deps = [ ":zlib_common_headers" ]
}
if (use_arm_neon_optimizations) {
config("zlib_arm_crc32_config") {
# Disabled for iPhone, as described in DDI0487C_a_armv8_arm:
# "All implementations of the ARMv8.1 architecture are required to
# implement the CRC32* instructions. These are optional in ARMv8.0."
if (!is_ios) {
defines = [ "CRC32_ARMV8_CRC32" ]
if (is_android) {
defines += [ "ARMV8_OS_ANDROID" ]
} else if (is_linux || is_chromeos) {
defines += [ "ARMV8_OS_LINUX" ]
} else if (is_mac) {
defines += [ "ARMV8_OS_MACOS" ]
} else if (is_fuchsia) {
defines += [ "ARMV8_OS_FUCHSIA" ]
} else if (is_win) {
defines += [ "ARMV8_OS_WINDOWS" ]
} else {
assert(false, "Unsupported ARM OS")
}
}
}
source_set("zlib_arm_crc32") {
visibility = [ ":*" ]
if (!is_ios) {
include_dirs = [ "." ]
if (!is_win && !is_clang) {
assert(!use_thin_lto,
"ThinLTO fails mixing different module-level targets")
cflags_c = [ "-march=armv8-a+crc" ]
}
sources = [
"crc32_simd.c",
"crc32_simd.h",
]
}
configs += [ ":zlib_internal_config" ]
public_configs = [ ":zlib_arm_crc32_config" ]
public_deps = [ ":zlib_common_headers" ]
}
}
config("zlib_inflate_chunk_simd_config") {
if (use_x86_x64_optimizations) {
defines = [ "INFLATE_CHUNK_SIMD_SSE2" ]
if (current_cpu == "x64") {
defines += [ "INFLATE_CHUNK_READ_64LE" ]
}
}
if (use_arm_neon_optimizations) {
defines = [ "INFLATE_CHUNK_SIMD_NEON" ]
if (current_cpu == "arm64") {
defines += [ "INFLATE_CHUNK_READ_64LE" ]
}
}
}
source_set("zlib_inflate_chunk_simd") {
visibility = [ ":*" ]
if (use_x86_x64_optimizations || use_arm_neon_optimizations) {
include_dirs = [ "." ]
sources = [
"contrib/optimizations/chunkcopy.h",
"contrib/optimizations/inffast_chunk.c",
"contrib/optimizations/inffast_chunk.h",
"contrib/optimizations/inflate.c",
]
}
configs += [ ":zlib_internal_config" ]
# Needed for MSVC, which is still supported by V8 and PDFium. zlib uses K&R C
# style function declarations, which triggers warning C4131.
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
public_configs = [ ":zlib_inflate_chunk_simd_config" ]
public_deps = [ ":zlib_common_headers" ]
}
config("zlib_crc32_simd_config") {
if (use_x86_x64_optimizations) {
defines = [ "CRC32_SIMD_SSE42_PCLMUL" ]
}
}
source_set("zlib_crc32_simd") {
visibility = [ ":*" ]
if (use_x86_x64_optimizations) {
sources = [
"crc32_simd.c",
"crc32_simd.h",
]
if (!is_win || is_clang) {
cflags = [
"-msse4.2",
"-mpclmul",
]
}
}
configs += [ ":zlib_internal_config" ]
public_configs = [ ":zlib_crc32_simd_config" ]
public_deps = [ ":zlib_common_headers" ]
}
config("zlib_x86_simd_config") {
if (use_x86_x64_optimizations) {
defines = [
"CRC32_SIMD_SSE42_PCLMUL",
"DEFLATE_FILL_WINDOW_SSE2",
]
}
}
source_set("zlib_x86_simd") {
visibility = [ ":*" ]
if (use_x86_x64_optimizations) {
sources = [
"crc_folding.c",
"fill_window_sse.c",
]
if (!is_win || is_clang) {
cflags = [
"-msse4.2",
"-mpclmul",
]
}
}
configs += [ ":zlib_internal_config" ]
public_configs = [ ":zlib_x86_simd_config" ]
public_deps = [ ":zlib_common_headers" ]
}
config("zlib_warnings") {
if (is_clang && use_x86_x64_optimizations) {
cflags = [ "-Wno-incompatible-pointer-types" ]
}
}
component("zlib") {
if (!is_win) {
# Don't stomp on "libzlib" on other platforms.
output_name = "chrome_zlib"
}
sources = [
"adler32.c",
"chromeconf.h",
"compress.c",
"contrib/optimizations/insert_string.h",
"cpu_features.c",
"cpu_features.h",
"crc32.c",
"crc32.h",
"deflate.c",
"deflate.h",
"gzclose.c",
"gzguts.h",
"gzlib.c",
"gzread.c",
"gzwrite.c",
"infback.c",
"inffast.c",
"inffast.h",
"inffixed.h",
"inflate.h",
"inftrees.c",
"inftrees.h",
"trees.c",
"trees.h",
"uncompr.c",
"zconf.h",
"zlib.h",
"zutil.c",
"zutil.h",
]
defines = []
deps = []
if (!use_x86_x64_optimizations && !use_arm_neon_optimizations) {
# Apparently android_cronet bot builds with NEON disabled and
# we also should disable optimizations for iOS@x86 (a.k.a. simulator).
defines += [ "CPU_NO_SIMD" ]
}
if (is_ios) {
# iOS@ARM is a special case where we always have NEON but don't check
# for crypto extensions.
# TODO(cavalcantii): verify what is the current state of CPU features
# shipped on latest iOS devices.
defines += [ "ARM_OS_IOS" ]
}
if (use_x86_x64_optimizations || use_arm_neon_optimizations) {
deps += [
":zlib_adler32_simd",
":zlib_inflate_chunk_simd",
]
if (use_x86_x64_optimizations) {
deps += [ ":zlib_crc32_simd" ]
} else if (use_arm_neon_optimizations) {
sources += [ "contrib/optimizations/slide_hash_neon.h" ]
deps += [ ":zlib_arm_crc32" ]
}
} else {
sources += [ "inflate.c" ]
}
deps += [ ":zlib_x86_simd" ]
if (is_android) {
import("//build/config/android/config.gni")
if (defined(android_ndk_root) && android_ndk_root != "") {
deps += [ "//third_party/android_ndk:cpu_features" ]
} else {
assert(false, "CPU detection requires the Android NDK")
}
}
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
public_configs = [ ":zlib_config" ]
configs += [
":zlib_internal_config",
# Must be after no_chromium_code for warning flags to be ordered correctly.
":zlib_warnings",
]
allow_circular_includes_from = deps
}
config("minizip_warnings") {
visibility = [ ":*" ]
if (is_clang) {
# zlib uses `if ((a == b))` for some reason.
cflags = [ "-Wno-parentheses-equality" ]
}
}
static_library("minizip") {
sources = [
"contrib/minizip/ioapi.c",
"contrib/minizip/ioapi.h",
"contrib/minizip/iowin32.c",
"contrib/minizip/iowin32.h",
"contrib/minizip/unzip.c",
"contrib/minizip/unzip.h",
"contrib/minizip/zip.c",
"contrib/minizip/zip.h",
]
if (!is_win) {
sources -= [
"contrib/minizip/iowin32.c",
"contrib/minizip/iowin32.h",
]
}
if (is_apple || is_android || is_nacl) {
# Mac, Android and the BSDs don't have fopen64, ftello64, or fseeko64. We
# use fopen, ftell, and fseek instead on these systems.
defines = [ "USE_FILE32API" ]
}
deps = [ ":zlib" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
public_configs = [ ":zlib_config" ]
configs += [
# Must be after no_chromium_code for warning flags to be ordered correctly.
":minizip_warnings",
]
}
executable("zlib_bench") {
include_dirs = [ "." ]
sources = [ "contrib/bench/zlib_bench.cc" ]
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
configs += [ "//build/config/compiler:optimize_speed" ]
}
deps = [ ":zlib" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
}
if (!is_win || target_os != "winuwp") {
executable("minizip_bin") {
include_dirs = [ "." ]
sources = [ "contrib/minizip/minizip.c" ]
if (is_clang) {
cflags = [ "-Wno-incompatible-pointer-types-discards-qualifiers" ]
}
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
configs += [ "//build/config/compiler:optimize_speed" ]
}
deps = [ ":minizip" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
}
executable("miniunz_bin") {
include_dirs = [ "." ]
sources = [ "contrib/minizip/miniunz.c" ]
if (is_clang) {
cflags = [ "-Wno-incompatible-pointer-types-discards-qualifiers" ]
}
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
configs += [ "//build/config/compiler:optimize_speed" ]
}
deps = [ ":minizip" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
}
}
if (build_with_chromium) {
test("zlib_unittests") {
testonly = true
sources = [
"contrib/tests/infcover.cc",
"contrib/tests/infcover.h",
"contrib/tests/run_all_unittests.cc",
"contrib/tests/utils_unittest.cc",
"google/compression_utils_unittest.cc",
"google/zip_reader_unittest.cc",
"google/zip_unittest.cc",
]
data = [ "google/test/data/" ]
deps = [
":zlib",
"google:compression_utils",
"google:zip",
"//base/test:test_support",
"//testing/gtest",
]
include_dirs = [
"//third_party/googletest/src/googletest/include/gtest",
".",
"google",
]
}
}
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