mirror of
https://github.com/dart-lang/sdk
synced 2024-09-05 00:13:50 +00:00
![Zach Anderson](/assets/img/avatar_default.png)
This relands https://dart-review.googlesource.com/c/sdk/+/205633 but without renaming TARGET_OS_IPHONE to DART_TARGET_OS_IPHONE. It also changes uses of TARGET_OS_IOS to DART_TARGET_OS_MACOS_IOS to be consistent with the rest of the VM. TargetConditionals.h for XCode 13 defines several TARGET_OS_* preprocessor symbols that confuse the Dart build. There is probably a more targeted fix for this, but renaming the symbols that Dart uses will also prevent this problem if more symbols are added to the platform headers in the future. See: https://github.com/dart-lang/sdk/issues/46499 TEST=It builds. Change-Id: Ie775c19dd23cfdf5f65e5ebc6ee4ec3a561676fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/205860 Commit-Queue: Zach Anderson <zra@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "vm/globals.h"
|
|
#if !defined(DART_HOST_OS_MACOS)
|
|
#include "vm/cpuid.h"
|
|
|
|
#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
|
|
// GetCpuId() on Windows, __get_cpuid() on Linux
|
|
#if defined(DART_HOST_OS_WINDOWS)
|
|
#include <intrin.h> // NOLINT
|
|
#else
|
|
#include <cpuid.h> // NOLINT
|
|
#endif
|
|
#endif
|
|
|
|
namespace dart {
|
|
|
|
bool CpuId::sse2_ = false;
|
|
bool CpuId::sse41_ = false;
|
|
bool CpuId::popcnt_ = false;
|
|
bool CpuId::abm_ = false;
|
|
|
|
const char* CpuId::id_string_ = nullptr;
|
|
const char* CpuId::brand_string_ = nullptr;
|
|
|
|
#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
|
|
|
|
void CpuId::GetCpuId(int32_t level, uint32_t info[4]) {
|
|
#if defined(DART_HOST_OS_WINDOWS)
|
|
// The documentation for __cpuid is at:
|
|
// http://msdn.microsoft.com/en-us/library/hskdteyh(v=vs.90).aspx
|
|
__cpuid(reinterpret_cast<int*>(info), level);
|
|
#else
|
|
__get_cpuid(level, &info[0], &info[1], &info[2], &info[3]);
|
|
#endif
|
|
}
|
|
|
|
void CpuId::Init() {
|
|
uint32_t info[4] = {static_cast<uint32_t>(-1)};
|
|
|
|
GetCpuId(0, info);
|
|
char* id_string = reinterpret_cast<char*>(malloc(3 * sizeof(int32_t)));
|
|
|
|
// Yes, these are supposed to be out of order.
|
|
*reinterpret_cast<uint32_t*>(id_string) = info[1];
|
|
*reinterpret_cast<uint32_t*>(id_string + 4) = info[3];
|
|
*reinterpret_cast<uint32_t*>(id_string + 8) = info[2];
|
|
CpuId::id_string_ = id_string;
|
|
|
|
GetCpuId(1, info);
|
|
CpuId::sse41_ = (info[2] & (1 << 19)) != 0;
|
|
CpuId::sse2_ = (info[3] & (1 << 26)) != 0;
|
|
CpuId::popcnt_ = (info[2] & (1 << 23)) != 0;
|
|
|
|
GetCpuId(0x80000001, info);
|
|
CpuId::abm_ = (info[2] & (1 << 5)) != 0;
|
|
|
|
char* brand_string =
|
|
reinterpret_cast<char*>(malloc(3 * 4 * sizeof(uint32_t)));
|
|
for (uint32_t i = 0x80000002; i <= 0x80000004; i++) {
|
|
uint32_t off = (i - 0x80000002U) * 4 * sizeof(uint32_t);
|
|
GetCpuId(i, info);
|
|
*reinterpret_cast<int32_t*>(brand_string + off) = info[0];
|
|
*reinterpret_cast<int32_t*>(brand_string + off + 4) = info[1];
|
|
*reinterpret_cast<int32_t*>(brand_string + off + 8) = info[2];
|
|
*reinterpret_cast<int32_t*>(brand_string + off + 12) = info[3];
|
|
}
|
|
CpuId::brand_string_ = brand_string;
|
|
}
|
|
|
|
void CpuId::Cleanup() {
|
|
ASSERT(id_string_ != NULL);
|
|
free(const_cast<char*>(id_string_));
|
|
id_string_ = NULL;
|
|
|
|
ASSERT(brand_string_ != NULL);
|
|
free(const_cast<char*>(brand_string_));
|
|
brand_string_ = NULL;
|
|
}
|
|
|
|
const char* CpuId::id_string() {
|
|
return Utils::StrDup(id_string_);
|
|
}
|
|
|
|
const char* CpuId::brand_string() {
|
|
return Utils::StrDup(brand_string_);
|
|
}
|
|
|
|
const char* CpuId::field(CpuInfoIndices idx) {
|
|
switch (idx) {
|
|
case kCpuInfoProcessor:
|
|
return id_string();
|
|
case kCpuInfoModel:
|
|
return brand_string();
|
|
case kCpuInfoHardware:
|
|
return brand_string();
|
|
case kCpuInfoFeatures: {
|
|
char buffer[100];
|
|
char* p = buffer;
|
|
const char* q = p + 100;
|
|
*p = '\0';
|
|
if (sse2()) {
|
|
p += snprintf(p, q - p, "sse2 ");
|
|
}
|
|
if (sse41()) {
|
|
p += snprintf(p, q - p, "sse4.1 ");
|
|
}
|
|
if (popcnt()) {
|
|
p += snprintf(p, q - p, "popcnt ");
|
|
}
|
|
if (abm()) {
|
|
p += snprintf(p, q - p, "abm ");
|
|
}
|
|
// Remove last space before returning string.
|
|
if (p != buffer) *(p - 1) = '\0';
|
|
return Utils::StrDup(buffer);
|
|
}
|
|
default: {
|
|
UNREACHABLE();
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64)
|
|
} // namespace dart
|
|
|
|
#endif // !defined(DART_HOST_OS_MACOS)
|