aboutsummaryrefslogtreecommitdiff
path: root/src/crc32c
diff options
context:
space:
mode:
Diffstat (limited to 'src/crc32c')
-rw-r--r--src/crc32c/.appveyor.yml13
-rw-r--r--src/crc32c/AUTHORS2
-rw-r--r--src/crc32c/CMakeLists.txt43
-rw-r--r--src/crc32c/Crc32cConfig.cmake.in (renamed from src/crc32c/Crc32cConfig.cmake)4
-rw-r--r--src/crc32c/src/crc32c.cc6
-rw-r--r--src/crc32c/src/crc32c_arm64.cc23
-rw-r--r--src/crc32c/src/crc32c_arm64.h8
-rw-r--r--src/crc32c/src/crc32c_arm64_check.h (renamed from src/crc32c/src/crc32c_arm64_linux_check.h)26
-rw-r--r--src/crc32c/src/crc32c_benchmark.cc8
-rw-r--r--src/crc32c/src/crc32c_read_le.h16
10 files changed, 88 insertions, 61 deletions
diff --git a/src/crc32c/.appveyor.yml b/src/crc32c/.appveyor.yml
index 7345746750..b23e02e88a 100644
--- a/src/crc32c/.appveyor.yml
+++ b/src/crc32c/.appveyor.yml
@@ -8,9 +8,9 @@ environment:
matrix:
# AppVeyor currently has no custom job name feature.
# http://help.appveyor.com/discussions/questions/1623-can-i-provide-a-friendly-name-for-jobs
- - JOB: Visual Studio 2017
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
- CMAKE_GENERATOR: Visual Studio 15 2017
+ - JOB: Visual Studio 2019
+ APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+ CMAKE_GENERATOR: Visual Studio 16 2019
platform:
- x86
@@ -24,10 +24,11 @@ build_script:
- git submodule update --init --recursive
- mkdir build
- cd build
- - if "%platform%"=="x64" set CMAKE_GENERATOR=%CMAKE_GENERATOR% Win64
+ - if "%platform%"=="x86" (set CMAKE_GENERATOR_PLATFORM="Win32")
+ else (set CMAKE_GENERATOR_PLATFORM="%platform%")
- cmake --version
- - cmake .. -G "%CMAKE_GENERATOR%" -DCRC32C_USE_GLOG=0
- -DCMAKE_CONFIGURATION_TYPES="%CONFIGURATION%"
+ - cmake .. -G "%CMAKE_GENERATOR%" -A "%CMAKE_GENERATOR_PLATFORM%"
+ -DCMAKE_CONFIGURATION_TYPES="%CONFIGURATION%" -DCRC32C_USE_GLOG=0
- cmake --build . --config "%CONFIGURATION%"
- cd ..
diff --git a/src/crc32c/AUTHORS b/src/crc32c/AUTHORS
index 6f1f6871a6..ef9b4ea933 100644
--- a/src/crc32c/AUTHORS
+++ b/src/crc32c/AUTHORS
@@ -7,3 +7,5 @@ Google Inc.
Fangming Fang <Fangming.Fang@arm.com>
Vadim Skipin <vadim.skipin@gmail.com>
+Rodrigo Tobar <rtobar@icrar.org>
+Harry Mallon <hjmallon@gmail.com>
diff --git a/src/crc32c/CMakeLists.txt b/src/crc32c/CMakeLists.txt
index 111a3e3614..71692d5796 100644
--- a/src/crc32c/CMakeLists.txt
+++ b/src/crc32c/CMakeLists.txt
@@ -5,15 +5,21 @@
cmake_minimum_required(VERSION 3.1)
project(Crc32c VERSION 1.1.0 LANGUAGES C CXX)
-# This project can use C11, but will gracefully decay down to C89.
-set(CMAKE_C_STANDARD 11)
-set(CMAKE_C_STANDARD_REQUIRED OFF)
-set(CMAKE_C_EXTENSIONS OFF)
-
-# This project requires C++11.
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS OFF)
+# C standard can be overridden when this is used as a sub-project.
+if(NOT CMAKE_C_STANDARD)
+ # This project can use C11, but will gracefully decay down to C89.
+ set(CMAKE_C_STANDARD 11)
+ set(CMAKE_C_STANDARD_REQUIRED OFF)
+ set(CMAKE_C_EXTENSIONS OFF)
+endif(NOT CMAKE_C_STANDARD)
+
+# C++ standard can be overridden when this is used as a sub-project.
+if(NOT CMAKE_CXX_STANDARD)
+ # This project requires C++11.
+ set(CMAKE_CXX_STANDARD 11)
+ set(CMAKE_CXX_STANDARD_REQUIRED ON)
+ set(CMAKE_CXX_EXTENSIONS OFF)
+endif(NOT CMAKE_CXX_STANDARD)
# https://github.com/izenecloud/cmake/blob/master/SetCompilerWarningAll.cmake
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
@@ -269,7 +275,7 @@ target_sources(crc32c
PRIVATE
"${PROJECT_BINARY_DIR}/include/crc32c/crc32c_config.h"
"src/crc32c_arm64.h"
- "src/crc32c_arm64_linux_check.h"
+ "src/crc32c_arm64_check.h"
"src/crc32c_internal.h"
"src/crc32c_portable.cc"
"src/crc32c_prefetch.h"
@@ -405,19 +411,24 @@ if(CRC32C_INSTALL)
)
include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ "${PROJECT_NAME}Config.cmake.in"
+ "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+ INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+ )
write_basic_package_version_file(
- "${PROJECT_BINARY_DIR}/Crc32cConfigVersion.cmake"
- COMPATIBILITY SameMajorVersion
+ "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+ COMPATIBILITY SameMajorVersion
)
install(
EXPORT Crc32cTargets
NAMESPACE Crc32c::
- DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Crc32c"
+ DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
)
install(
FILES
- "Crc32cConfig.cmake"
- "${PROJECT_BINARY_DIR}/Crc32cConfigVersion.cmake"
- DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Crc32c"
+ "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+ "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+ DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
)
endif(CRC32C_INSTALL)
diff --git a/src/crc32c/Crc32cConfig.cmake b/src/crc32c/Crc32cConfig.cmake.in
index 4d6057ec26..c6b8fc7913 100644
--- a/src/crc32c/Crc32cConfig.cmake
+++ b/src/crc32c/Crc32cConfig.cmake.in
@@ -2,4 +2,8 @@
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file. See the AUTHORS file for names of contributors.
+@PACKAGE_INIT@
+
include("${CMAKE_CURRENT_LIST_DIR}/Crc32cTargets.cmake")
+
+check_required_components(Crc32c)
diff --git a/src/crc32c/src/crc32c.cc b/src/crc32c/src/crc32c.cc
index 4d3018af47..804133bc17 100644
--- a/src/crc32c/src/crc32c.cc
+++ b/src/crc32c/src/crc32c.cc
@@ -8,7 +8,7 @@
#include <cstdint>
#include "./crc32c_arm64.h"
-#include "./crc32c_arm64_linux_check.h"
+#include "./crc32c_arm64_check.h"
#include "./crc32c_internal.h"
#include "./crc32c_sse42.h"
#include "./crc32c_sse42_check.h"
@@ -20,8 +20,8 @@ uint32_t Extend(uint32_t crc, const uint8_t* data, size_t count) {
static bool can_use_sse42 = CanUseSse42();
if (can_use_sse42) return ExtendSse42(crc, data, count);
#elif HAVE_ARM64_CRC32C
- static bool can_use_arm_linux = CanUseArm64Linux();
- if (can_use_arm_linux) return ExtendArm64(crc, data, count);
+ static bool can_use_arm64_crc32 = CanUseArm64Crc32();
+ if (can_use_arm64_crc32) return ExtendArm64(crc, data, count);
#endif // HAVE_SSE42 && (defined(_M_X64) || defined(__x86_64__))
return ExtendPortable(crc, data, count);
diff --git a/src/crc32c/src/crc32c_arm64.cc b/src/crc32c/src/crc32c_arm64.cc
index b872245f95..1da04ed34a 100644
--- a/src/crc32c/src/crc32c_arm64.cc
+++ b/src/crc32c/src/crc32c_arm64.cc
@@ -64,7 +64,7 @@
namespace crc32c {
-uint32_t ExtendArm64(uint32_t crc, const uint8_t *buf, size_t size) {
+uint32_t ExtendArm64(uint32_t crc, const uint8_t *data, size_t size) {
int64_t length = size;
uint32_t crc0, crc1, crc2, crc3;
uint64_t t0, t1, t2;
@@ -74,7 +74,6 @@ uint32_t ExtendArm64(uint32_t crc, const uint8_t *buf, size_t size) {
const poly64_t k0 = 0x8d96551c, k1 = 0xbd6f81f8, k2 = 0xdcb17aa4;
crc = crc ^ kCRC32Xor;
- const uint8_t *p = reinterpret_cast<const uint8_t *>(buf);
while (length >= KBYTES) {
crc0 = crc;
@@ -83,14 +82,14 @@ uint32_t ExtendArm64(uint32_t crc, const uint8_t *buf, size_t size) {
crc3 = 0;
// Process 1024 bytes in parallel.
- CRC32C1024BYTES(p);
+ CRC32C1024BYTES(data);
// Merge the 4 partial CRC32C values.
t2 = (uint64_t)vmull_p64(crc2, k2);
t1 = (uint64_t)vmull_p64(crc1, k1);
t0 = (uint64_t)vmull_p64(crc0, k0);
- crc = __crc32cd(crc3, *(uint64_t *)p);
- p += sizeof(uint64_t);
+ crc = __crc32cd(crc3, *(uint64_t *)data);
+ data += sizeof(uint64_t);
crc ^= __crc32cd(0, t2);
crc ^= __crc32cd(0, t1);
crc ^= __crc32cd(0, t0);
@@ -99,23 +98,23 @@ uint32_t ExtendArm64(uint32_t crc, const uint8_t *buf, size_t size) {
}
while (length >= 8) {
- crc = __crc32cd(crc, *(uint64_t *)p);
- p += 8;
+ crc = __crc32cd(crc, *(uint64_t *)data);
+ data += 8;
length -= 8;
}
if (length & 4) {
- crc = __crc32cw(crc, *(uint32_t *)p);
- p += 4;
+ crc = __crc32cw(crc, *(uint32_t *)data);
+ data += 4;
}
if (length & 2) {
- crc = __crc32ch(crc, *(uint16_t *)p);
- p += 2;
+ crc = __crc32ch(crc, *(uint16_t *)data);
+ data += 2;
}
if (length & 1) {
- crc = __crc32cb(crc, *p);
+ crc = __crc32cb(crc, *data);
}
return crc ^ kCRC32Xor;
diff --git a/src/crc32c/src/crc32c_arm64.h b/src/crc32c/src/crc32c_arm64.h
index 100cd56ec8..e093687ddc 100644
--- a/src/crc32c/src/crc32c_arm64.h
+++ b/src/crc32c/src/crc32c_arm64.h
@@ -2,10 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-// Linux-specific code checking the availability for ARM CRC32C instructions.
+// ARM-specific code
-#ifndef CRC32C_CRC32C_ARM_LINUX_H_
-#define CRC32C_CRC32C_ARM_LINUX_H_
+#ifndef CRC32C_CRC32C_ARM_H_
+#define CRC32C_CRC32C_ARM_H_
#include <cstddef>
#include <cstdint>
@@ -24,4 +24,4 @@ uint32_t ExtendArm64(uint32_t crc, const uint8_t* data, size_t count);
#endif // HAVE_ARM64_CRC32C
-#endif // CRC32C_CRC32C_ARM_LINUX_H_
+#endif // CRC32C_CRC32C_ARM_H_
diff --git a/src/crc32c/src/crc32c_arm64_linux_check.h b/src/crc32c/src/crc32c_arm64_check.h
index 1a20a757bb..62a07aba09 100644
--- a/src/crc32c/src/crc32c_arm64_linux_check.h
+++ b/src/crc32c/src/crc32c_arm64_check.h
@@ -2,12 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-// ARM Linux-specific code checking for the availability of CRC32C instructions.
+// ARM-specific code checking for the availability of CRC32C instructions.
-#ifndef CRC32C_CRC32C_ARM_LINUX_CHECK_H_
-#define CRC32C_CRC32C_ARM_LINUX_CHECK_H_
-
-// X86-specific code checking for the availability of SSE4.2 instructions.
+#ifndef CRC32C_CRC32C_ARM_CHECK_H_
+#define CRC32C_CRC32C_ARM_CHECK_H_
#include <cstddef>
#include <cstdint>
@@ -18,6 +16,7 @@
#if HAVE_ARM64_CRC32C
+#ifdef __linux__
#if HAVE_STRONG_GETAUXVAL
#include <sys/auxv.h>
#elif HAVE_WEAK_GETAUXVAL
@@ -27,17 +26,28 @@ extern "C" unsigned long getauxval(unsigned long type) __attribute__((weak));
#define AT_HWCAP 16
#endif // HAVE_STRONG_GETAUXVAL || HAVE_WEAK_GETAUXVAL
+#endif // defined (__linux__)
+
+#ifdef __APPLE__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif // defined (__APPLE__)
namespace crc32c {
-inline bool CanUseArm64Linux() {
-#if HAVE_STRONG_GETAUXVAL || HAVE_WEAK_GETAUXVAL
+inline bool CanUseArm64Crc32() {
+#if defined (__linux__) && (HAVE_STRONG_GETAUXVAL || HAVE_WEAK_GETAUXVAL)
// From 'arch/arm64/include/uapi/asm/hwcap.h' in Linux kernel source code.
constexpr unsigned long kHWCAP_PMULL = 1 << 4;
constexpr unsigned long kHWCAP_CRC32 = 1 << 7;
unsigned long hwcap = (&getauxval != nullptr) ? getauxval(AT_HWCAP) : 0;
return (hwcap & (kHWCAP_PMULL | kHWCAP_CRC32)) ==
(kHWCAP_PMULL | kHWCAP_CRC32);
+#elif defined(__APPLE__)
+ int val = 0;
+ size_t len = sizeof(val);
+ return sysctlbyname("hw.optional.armv8_crc32", &val, &len, nullptr, 0) == 0
+ && val != 0;
#else
return false;
#endif // HAVE_STRONG_GETAUXVAL || HAVE_WEAK_GETAUXVAL
@@ -47,4 +57,4 @@ inline bool CanUseArm64Linux() {
#endif // HAVE_ARM64_CRC32C
-#endif // CRC32C_CRC32C_ARM_LINUX_CHECK_H_
+#endif // CRC32C_CRC32C_ARM_CHECK_H_
diff --git a/src/crc32c/src/crc32c_benchmark.cc b/src/crc32c/src/crc32c_benchmark.cc
index c464304b3f..51194b370a 100644
--- a/src/crc32c/src/crc32c_benchmark.cc
+++ b/src/crc32c/src/crc32c_benchmark.cc
@@ -16,7 +16,7 @@
#endif // CRC32C_TESTS_BUILT_WITH_GLOG
#include "./crc32c_arm64.h"
-#include "./crc32c_arm64_linux_check.h"
+#include "./crc32c_arm64_check.h"
#include "./crc32c_internal.h"
#include "./crc32c_sse42.h"
#include "./crc32c_sse42_check.h"
@@ -58,8 +58,8 @@ BENCHMARK_REGISTER_F(CRC32CBenchmark, Portable)
#if HAVE_ARM64_CRC32C
-BENCHMARK_DEFINE_F(CRC32CBenchmark, ArmLinux)(benchmark::State& state) {
- if (!crc32c::CanUseArm64Linux()) {
+BENCHMARK_DEFINE_F(CRC32CBenchmark, ArmCRC32C)(benchmark::State& state) {
+ if (!crc32c::CanUseArm64Crc32()) {
state.SkipWithError("ARM CRC32C instructions not available or not enabled");
return;
}
@@ -69,7 +69,7 @@ BENCHMARK_DEFINE_F(CRC32CBenchmark, ArmLinux)(benchmark::State& state) {
crc = crc32c::ExtendArm64(crc, block_buffer_, block_size_);
state.SetBytesProcessed(state.iterations() * block_size_);
}
-BENCHMARK_REGISTER_F(CRC32CBenchmark, ArmLinux)
+BENCHMARK_REGISTER_F(CRC32CBenchmark, ArmCRC32C)
->RangeMultiplier(16)
->Range(256, 16777216); // Block size.
diff --git a/src/crc32c/src/crc32c_read_le.h b/src/crc32c/src/crc32c_read_le.h
index 3bd45fe3aa..673a2a0db7 100644
--- a/src/crc32c/src/crc32c_read_le.h
+++ b/src/crc32c/src/crc32c_read_le.h
@@ -32,14 +32,14 @@ inline uint32_t ReadUint32LE(const uint8_t* buffer) {
// Reads a little-endian 64-bit integer from a 64-bit-aligned buffer.
inline uint64_t ReadUint64LE(const uint8_t* buffer) {
#if BYTE_ORDER_BIG_ENDIAN
- return ((static_cast<uint32_t>(static_cast<uint8_t>(buffer[0]))) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[1])) << 8) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[2])) << 16) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[3])) << 24) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[4])) << 32) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[5])) << 40) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[6])) << 48) |
- (static_cast<uint32_t>(static_cast<uint8_t>(buffer[7])) << 56));
+ return ((static_cast<uint64_t>(static_cast<uint8_t>(buffer[0]))) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[1])) << 8) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[2])) << 16) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[3])) << 24) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[4])) << 32) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[5])) << 40) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[6])) << 48) |
+ (static_cast<uint64_t>(static_cast<uint8_t>(buffer[7])) << 56));
#else // !BYTE_ORDER_BIG_ENDIAN
uint64_t result;
// This should be optimized to a single instruction.
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-12 19:42:39 +0000