diff options
author | Qt Forward Merge Bot <qt_forward_merge_bot@qt-project.org> | 2019-02-15 01:00:50 +0100 |
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committer | Qt Forward Merge Bot <qt_forward_merge_bot@qt-project.org> | 2019-02-15 01:00:51 +0100 |
commit | ef2ddcf551dec13215cb45cb000731f94b2f8e34 (patch) | |
tree | c8810f6ee77a81c3003ccc8783c9d3b17f0b8a5e /src/corelib/kernel/qcore_mac_objc.mm | |
parent | e2cf6ade3535467bc2f21b54b82ed007d5ce279b (diff) | |
parent | 501cca2c4b0851cea7133ba56c3a05d71c25ce6d (diff) |
Merge remote-tracking branch 'origin/5.12' into 5.13
Change-Id: I8cad26f17834dbc9f7151edc0f17786f9e32025d
Diffstat (limited to 'src/corelib/kernel/qcore_mac_objc.mm')
-rw-r--r-- | src/corelib/kernel/qcore_mac_objc.mm | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/src/corelib/kernel/qcore_mac_objc.mm b/src/corelib/kernel/qcore_mac_objc.mm index bc23e821fd..4550891e2a 100644 --- a/src/corelib/kernel/qcore_mac_objc.mm +++ b/src/corelib/kernel/qcore_mac_objc.mm @@ -48,6 +48,11 @@ #include <UIKit/UIKit.h> #endif +#include <execinfo.h> +#include <dlfcn.h> +#include <cxxabi.h> +#include <objc/runtime.h> + #include <qdebug.h> QT_BEGIN_NAMESPACE @@ -127,12 +132,54 @@ QT_USE_NAMESPACE } @end QT_NAMESPACE_ALIAS_OBJC_CLASS(QMacAutoReleasePoolTracker); + QT_BEGIN_NAMESPACE QMacAutoReleasePool::QMacAutoReleasePool() : pool([[NSAutoreleasePool alloc] init]) { - [[[QMacAutoReleasePoolTracker alloc] initWithPool: + Class trackerClass = [QMacAutoReleasePoolTracker class]; + +#ifdef QT_DEBUG + void *poolFrame = nullptr; + if (__builtin_available(macOS 10.14, iOS 12.0, tvOS 12.0, watchOS 5.0, *)) { + void *frame; + if (backtrace_from_fp(__builtin_frame_address(0), &frame, 1)) + poolFrame = frame; + } else { + static const int maxFrames = 3; + void *callstack[maxFrames]; + if (backtrace(callstack, maxFrames) == maxFrames) + poolFrame = callstack[maxFrames - 1]; + } + + if (poolFrame) { + Dl_info info; + if (dladdr(poolFrame, &info) && info.dli_sname) { + const char *symbolName = info.dli_sname; + if (symbolName[0] == '_') { + int status; + if (char *demangled = abi::__cxa_demangle(info.dli_sname, nullptr, 0, &status)) + symbolName = demangled; + } + + char *className = nullptr; + asprintf(&className, " ^-- allocated in function: %s", symbolName); + + if (Class existingClass = objc_getClass(className)) + trackerClass = existingClass; + else + trackerClass = objc_duplicateClass(trackerClass, className, 0); + + free(className); + + if (symbolName != info.dli_sname) + free((char*)symbolName); + } + } +#endif + + [[[trackerClass alloc] initWithPool: reinterpret_cast<NSAutoreleasePool **>(&pool)] autorelease]; } |