[Lldb-commits] [PATCH] D68096: ProcessMinidump: inject SIGSTOP on Linux if no thread has a signal

[Joseph Tremoulet via Phabricator via lldb-commits]

JosephTremoulet updated this revision to Diff 222225.
JosephTremoulet added a comment.

- Use accessor for m_unix_signals_sp


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68096/new/

https://reviews.llvm.org/D68096

Files:
  lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp


Index: lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
===================================================================
--- lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
+++ lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
@@ -215,6 +215,10 @@
 
   m_thread_list = m_minidump_parser->GetThreads();
   m_active_exception = m_minidump_parser->GetExceptionStream();
+
+  if (arch.GetTriple().isOSLinux())
+    SetUnixSignals(UnixSignals::Create(GetArchitecture()));
+
   ReadModuleList();
 
   llvm::Optional<lldb::pid_t> pid = m_minidump_parser->GetPid();
@@ -234,6 +238,7 @@
 Status ProcessMinidump::DoDestroy() { return Status(); }
 
 void ProcessMinidump::RefreshStateAfterStop() {
+
   if (!m_active_exception)
     return;
 
@@ -250,8 +255,16 @@
   ArchSpec arch = GetArchitecture();
 
   if (arch.GetTriple().getOS() == llvm::Triple::Linux) {
+    uint32_t signo = m_active_exception->exception_record.exception_code;
+
+    if (signo == 0) {
+      // Artifically inject a SIGSTOP so that we'll find a stop reason
+      // when we process the stop event.
+      signo = GetUnixSignals()->GetSignalNumberFromName("SIGSTOP");
+    }
+
     stop_info = StopInfo::CreateStopReasonWithSignal(
-        *stop_thread, m_active_exception->exception_record.exception_code);
+        *stop_thread, signo);
   } else if (arch.GetTriple().getVendor() == llvm::Triple::Apple) {
     stop_info = StopInfoMachException::CreateStopReasonWithMachException(
         *stop_thread, m_active_exception->exception_record.exception_code, 2,


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D68096.222225.patch
Type: text/x-patch
Size: 1556 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/lldb-commits/attachments/20190927/2315a9ce/attachment.bin>