Remove Host::Backtrace in favor of llvm::sys::PrintStackTrace()

This removes Host::Backtrace from the codebase, and changes all
call sites to use llvm::sys::PrintStackTrace().  This makes the
functionality available for all platforms, and even for platforms
which currently had a supported implementation of Host::Backtrace,
this patch should enable richer information in stack traces, such
as file and line number information, as well as giving it the
ability to unwind through inlined functions.

llvm-svn: 231511

1 files changed, 9 insertions, 1 deletions

diff --git a/lldb/source/Core/Module.cpp b/lldb/source/Core/Module.cpp
index 2a1663be5cc..d394118cba7 100644
--- a/lldb/source/Core/Module.cpp
+++ b/lldb/source/Core/Module.cpp
@@ -40,6 +40,9 @@
 
 #include "Plugins/ObjectFile/JIT/ObjectFileJIT.h"
 
+#include "llvm/Support/raw_os_ostream.h"
+#include "llvm/Support/Signals.h"
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -1234,7 +1237,12 @@ Module::LogMessageVerboseBacktrace (Log *log, const char *format, ...)
         log_message.PrintfVarArg (format, args);
         va_end (args);
         if (log->GetVerbose())
-            Host::Backtrace (log_message, 1024);
+        {
+            std::string back_trace;
+            llvm::raw_string_ostream stream(back_trace);
+            llvm::sys::PrintStackTrace(stream);
+            log_message.PutCString(back_trace.c_str());
+        }
         log->PutCString(log_message.GetString().c_str());
     }
 }