implemented wxStackWalker for Unix (using glibc-specific methods); moved wxUSE_STACKWALKER to common setu_inc.h

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31474 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/stackwalk.h

@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/unix/stackwalk.h
+// Purpose:     declaration of wxStackWalker for Unix
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     2005-01-19
+// RCS-ID:      $Id$
+// Copyright:   (c) 2005 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_UNIX_STACKWALK_H_
+#define _WX_UNIX_STACKWALK_H_
+
+// ----------------------------------------------------------------------------
+// wxStackFrame
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxStackFrame : public wxStackFrameBase
+{
+public:
+    // arguments are the stack depth of this frame, its address and the return
+    // value of backtrace_symbols() for it
+    //
+    // NB: we don't copy syminfo pointer so it should have lifetime at least as
+    //     long as ours
+    wxStackFrame(size_t level, void *address, const char *syminfo)
+        : wxStackFrameBase(level, address)
+    {
+        m_hasName =
+        m_hasLocation = false;
+
+        m_syminfo = syminfo;
+    }
+
+protected:
+    virtual void OnGetName();
+    virtual void OnGetLocation();
+
+private:
+    const char *m_syminfo;
+
+    bool m_hasName,
+         m_hasLocation;
+};
+
+// ----------------------------------------------------------------------------
+// wxStackWalker
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxStackWalker : public wxStackWalkerBase
+{
+public:
+    // we need the full path to the program executable to be able to use
+    // addr2line, normally we can retrieve it from wxTheApp but if wxTheApp
+    // doesn't exist or doesn't have the correct value, the path may be given
+    // explicitly
+    wxStackWalker(const char *argv0 = NULL) { ms_exepath = argv0; }
+
+    virtual void Walk(size_t skip = 1);
+    virtual void WalkFromException() { Walk(2); }
+
+    static const wxString& GetExePath() { return ms_exepath; }
+
+private:
+    static wxString ms_exepath;
+};
+
+#endif // _WX_UNIX_STACKWALK_H_