diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-09-24 05:05:51 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-10-15 05:05:28 +0300 |
| commit | 90a17209266597eaf16162d4ff13d72007a25e67 (patch) | |
| tree | 074d813c1849457dc0bee8c30a46d8f09ea25566 /include | |
| parent | a7c7f58d599573250276199faec5108e5fb0ed74 (diff) | |
libcamera: base: backtrace: Fallback to libunwind for symbolic names
libunwind has an API to provide symbolic names for functions. It's less
optimal than using backtrace_symbols() or libdw, as it doesn't allow
deferring the symbolic names lookup, but it can be usefull as a fallback
if no other option is available.
A sample backtrace when falling back to libunwind looks like
libcamera::VimcCameraData::init()+0xbd
libcamera::PipelineHandlerVimc::match(libcamera::DeviceEnumerator*)+0x3e0
libcamera::CameraManager::Private::createPipelineHandlers()+0x1a7
libcamera::CameraManager::Private::init()+0x98
libcamera::CameraManager::Private::run()+0x9f
libcamera::Thread::startThread()+0xee
decltype(*(std::__1::forward<libcamera::Thread*>(fp0)).*fp()) std::__1::__invoke<void (libcamera::Thread::*)(), libcamera::Thread*, void>(void (libcamera::Thread::*&&)(), libcamera::Thread*&&)+0x77
void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (libcamera::Thread::*)(), libcamera::Thread*, 2ul>(std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (libcamera::Thread::*)(), libcamera::Thread*>&, std::__1::__tuple_indices<2ul>)+0x3e
void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (libcamera::Thread::*)(), libcamera::Thread*> >(void*)+0x62
start_thread+0xde
???
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libcamera/base/backtrace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/libcamera/base/backtrace.h b/include/libcamera/base/backtrace.h index 58ccc14c..bb77c73b 100644 --- a/include/libcamera/base/backtrace.h +++ b/include/libcamera/base/backtrace.h @@ -30,6 +30,7 @@ private: bool unwindTrace(); std::vector<void *> backtrace_; + std::vector<std::string> backtraceText_; }; } /* namespace libcamera */ |