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srcs_arm = [
"arch/arm/armfeature.c",
"arch/arm/crc32_acle.c",
"arch/arm/insert_string_acle.c",
"arch/arm/adler32_neon.c",
"arch/arm/chunkset_neon.c",
"arch/arm/slide_neon.c",
]
// Not all CPUs will support these features, but compatibility is checked at runtime.
cflags_arm = [
"-DARM_ACLE_CRC_HASH",
"-DARM_FEATURES",
"-DARM_NEON_ADLER32",
"-DARM_NEON_CHUNKSET",
"-DARM_NEON_SLIDEHASH",
]
srcs_x86 = [
"arch/x86/x86.c",
"arch/x86/slide_avx.c",
"arch/x86/chunkset_avx.c",
"arch/x86/compare258_avx.c",
"arch/x86/adler32_avx.c",
"arch/x86/insert_string_sse.c",
"arch/x86/compare258_sse.c",
"arch/x86/chunkset_sse.c",
"arch/x86/slide_sse.c",
"arch/x86/adler32_ssse3.c",
"arch/x86/crc_folding.c",
]
cflags_x86 = [
"-DX86_AVX2",
"-DX86_AVX2_ADLER32",
"-DX86_AVX_CHUNKSET",
"-DX86_FEATURES",
"-DX86_PCLMULQDQ_CRC",
"-DX86_SSE2",
"-DX86_SSE2_CHUNKSET",
"-DX86_SSE2_SLIDEHASH",
"-DX86_SSE42_CMP_STR",
"-DX86_SSE42_CRC_HASH",
"-DX86_SSE42_CRC_INTRIN",
"-DX86_SSSE3",
"-DX86_SSSE3_ADLER32",
"-mavx2",
"-msse4",
"-mssse3",
"-mpclmul",
]
// This optimization is applicable to arm64 and x86-64.
cflags_64 = ["-DUNALIGNED64_OK"]
libz_srcs = [
"adler32.c",
"chunkset.c",
"compare258.c",
"compress.c",
"crc32.c",
"crc32_comb.c",
"deflate.c",
"deflate_fast.c",
"deflate_medium.c",
"deflate_quick.c",
"deflate_slow.c",
"functable.c",
"infback.c",
"inffast.c",
"inflate.c",
"inftrees.c",
"insert_string.c",
"trees.c",
"uncompr.c",
"zutil.c",
"gzlib.c",
"gzread.c",
"gzwrite.c",
]
cflags_common = [
"-DHAVE_BUILTIN_CTZ",
"-DHAVE_BUILTIN_CTZLL",
"-DHAVE_VISIBILITY_HIDDEN",
"-DHAVE_VISIBILITY_INTERNAL",
"-DZLIB_CONST",
"-DWITH_GZFILEOP",
"-DZLIB_COMPAT",
"-DZLIB_DLL",
"-D_LARGEFILE64_SOURCE=1",
"-D__USE_LARGEFILE64",
"-Wall",
"-Werror",
"-Wno-implicit-fallthrough",
"-O3",
"-DNDEBUG",
"-fno-semantic-interposition",
"-std=c99",
"-DUNALIGNED_OK",
]
cc_defaults {
name: "libz_defaults",
cflags: cflags_common,
stl: "none",
export_include_dirs: ["."],
srcs: libz_srcs,
arch: {
arm: {
// TODO: This is to work around b/24465209. Remove after root cause
// is fixed.
pack_relocations: false,
ldflags: ["-Wl,--hash-style=both"],
cflags: cflags_arm,
srcs: srcs_arm,
},
arm64: {
cflags: cflags_arm + cflags_64,
srcs: srcs_arm,
},
x86: {
cflags: cflags_x86,
srcs: srcs_x86,
},
x86_64: {
cflags: cflags_x86 + cflags_64,
srcs: srcs_x86,
},
},
}
cc_library {
name: "libz",
defaults: ["libz_defaults"],
host_supported: true,
unique_host_soname: true,
static_ndk_lib: true,
vendor_available: true,
vndk: {
enabled: true,
support_system_process: true,
},
ramdisk_available: true,
recovery_available: true,
native_bridge_supported: true,
target: {
linux_bionic: {
enabled: true,
},
windows: {
enabled: true,
},
},
// TODO(b/155456180): make libz a stub-providing library by uncommenting below
// stubs: {
// versions: ["29", "30"],
// symbol_file: "libz.map.txt",
// },
apex_available: [
"//apex_available:platform",
"com.android.art.debug", // from libdexfile
"com.android.art.release",
"com.android.bluetooth.updatable",
"com.android.runtime",
],
}
// A more stable build of libz. Build configuration of this library should be
// the same for different targets. This is only used by imgdiff.
cc_library {
name: "libz_stable",
visibility: [
"//bootable/recovery/applypatch",
"//bootable/recovery/tests",
],
cflags: cflags_common,
stl: "none",
export_include_dirs: ["."],
srcs: libz_srcs,
host_supported: true,
vendor_available: true,
recovery_available: true,
}
cc_binary_host {
name: "minigzip",
srcs: ["test/minigzip.c"],
cflags: cflags_common,
static_libs: ["libz"],
stl: "none",
}
cc_binary {
name: "zlib_bench",
srcs: ["contrib/bench/zlib_bench.cc"],
cflags: ["-Wall", "-Werror"],
host_supported: true,
shared_libs: ["libz"],
// We build zlib_bench32 and zlib_bench64 so it's easy to test LP32.
compile_multilib: "both",
multilib: {
lib32: { suffix: "32", },
lib64: { suffix: "64", },
},
}
// This module is defined in development/ndk/Android.bp. Updating these headers
// to be usable for any API level is going to be some work (at the very least,
// there's a ZLIB_VERNUM that will need to be handled since early versions of
// Android did not have all the APIs that calling code will use if this is set
// to the current value.
//
// The NDK never updated the zlib headers when the platform updated, so until we
// solve this the NDK will continue shipping the old headers.
//
// ndk_headers {
// name: "libz_headers",
// from: "src",
// to: "",
// srcs: [
// "src/zconf.h",
// "src/zlib.h",
// ],
// license: "NOTICE",
// }
// TODO(b/155351357) remove this library and let libtextclassifier to use libz
// instead.
// libz_current allows modules building against the NDK to have access to zlib
// API that's not available from the NDK libz.
cc_library_static {
name: "libz_current",
defaults: ["libz_defaults"],
sdk_version: "current",
apex_available: [
"//apex_available:platform", // indirectly from GoogleExtServices that gets installed to /system
"com.android.extservices", // indirectly via libtextclassifier
],
}
ndk_library {
name: "libz",
symbol_file: "libz.map.txt",
first_version: "9",
unversioned_until: "current",
}
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