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| author | Greg Clayton <gclayton@apple.com> | 2012-12-05 00:16:59 +0000 |
|---|---|---|
| committer | Greg Clayton <gclayton@apple.com> | 2012-12-05 00:16:59 +0000 |
| commit | 90ba81150ef36277659edcc880d5440bd00ba997 (patch) | |
| tree | b6f4584b58e3b66240b7ecee9a993f34c0801e10 /lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp | |
| parent | d31802c1f6ee4018bf362a1034bab0802c07024b (diff) | |
| download | bcm5719-llvm-90ba81150ef36277659edcc880d5440bd00ba997.tar.gz bcm5719-llvm-90ba81150ef36277659edcc880d5440bd00ba997.zip | |
<rdar://problem/12649160>
Added the ability to debug through your process exec'ing itself to the same architecture.
llvm-svn: 169340
Diffstat (limited to 'lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp')
| -rw-r--r-- | lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp b/lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp index 7db57294dcd..5999e13fb70 100644 --- a/lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp +++ b/lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp @@ -16,6 +16,8 @@ #include "lldb/Breakpoint/Watchpoint.h" #include "lldb/Core/ArchSpec.h" #include "lldb/Core/StreamString.h" +#include "lldb/Symbol/Symbol.h" +#include "lldb/Target/DynamicLoader.h" #include "lldb/Target/ExecutionContext.h" #include "lldb/Target/Process.h" #include "lldb/Target/RegisterContext.h" @@ -300,7 +302,39 @@ StopInfoMachException::CreateStopReasonWithMachException case 5: // EXC_SOFTWARE if (exc_code == 0x10003) // EXC_SOFT_SIGNAL + { + if (exc_sub_code == 5) + { + // On MacOSX, a SIGTRAP can signify that a process has called + // exec, so we should check with our dynamic loader to verify. + ProcessSP process_sp (thread.GetProcess()); + if (process_sp) + { + DynamicLoader *dynamic_loader = process_sp->GetDynamicLoader(); + if (dynamic_loader && dynamic_loader->ProcessDidExec()) + { + // The program was re-exec'ed + return StopInfo::CreateStopReasonWithExec (thread); + } +// if (!process_did_exec) +// { +// // We have a SIGTRAP, make sure we didn't exec by checking +// // for the PC being at "_dyld_start"... +// lldb::StackFrameSP frame_sp (thread.GetStackFrameAtIndex(0)); +// if (frame_sp) +// { +// const Symbol *symbol = frame_sp->GetSymbolContext(eSymbolContextSymbol).symbol; +// if (symbol) +// { +// if (symbol->GetName() == ConstString("_dyld_start")) +// process_did_exec = true; +// } +// } +// } + } + } return StopInfo::CreateStopReasonWithSignal (thread, exc_sub_code); + } break; case 6: // EXC_BREAKPOINT |
