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[Apple Silicon] [In-process memory reader] Adjust low-bits computation for arm64 macOS

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This commit is contained in:
Mishal Shah
2020-07-02 18:32:23 -07:00
parent a8aec14bce
commit 6336b14db4
6 changed files with 7 additions and 7 deletions
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4
include/swift/Remote/InProcessMemoryReader.h
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@@ -38,7 +38,7 @@ class InProcessMemoryReader final : public MemoryReader {
#else
auto applePlatform = false;
#endif
#if defined(__APPLE__) && __APPLE__ && ((defined(TARGET_OS_IOS) && TARGET_OS_IOS) || (defined(TARGET_OS_IOS) && TARGET_OS_WATCH) || (defined(TARGET_OS_TV) && TARGET_OS_TV))
#if defined(__APPLE__) && __APPLE__ && ((defined(TARGET_OS_IOS) && TARGET_OS_IOS) || (defined(TARGET_OS_IOS) && TARGET_OS_WATCH) || (defined(TARGET_OS_TV) && TARGET_OS_TV) || defined(__arm64__))
auto iosDerivedPlatform = true;
#else
auto iosDerivedPlatform = false;
@@ -67,7 +67,7 @@ class InProcessMemoryReader final : public MemoryReader {
case DLQ_GetObjCReservedLowBits: {
auto result = static_cast<uint8_t *>(outBuffer);
if (applePlatform && !iosDerivedPlatform && (sizeof(void *) == 8)) {
// Obj-C reserves low bit on 64-bit macOS only.
// Obj-C reserves low bit on 64-bit Intel macOS only.
// Other Apple platforms don't reserve this bit (even when
// running on x86_64-based simulators).
*result = 1;