[gstreamer-bugs] [Bug 347794] New: Do not reset SIGSEGV handler when --gst-disable-segtrap is active

[GStreamer (bugzilla.gnome.org)]

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 GStreamer | gstreamer (core) | Ver: 0.10.8

           Summary: Do not reset SIGSEGV handler when --gst-disable-segtrap
                    is active
           Product: GStreamer
           Version: 0.10.8
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: michal.benes at xeris.cz
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


I am writing an application that has custom SIGSEGV handler. Unfortunately the
function _gst_plugin_fault_handler_restore resets the handler to SIG_DFL, even
if _gst_disable_segtrap == TRUE. Note that my pipe is builded automatically and
therefore new plugins can be loaded anytime during the stream processing.

I propose that _gst_plugin_fault_handler_restore does nothing in the case that
_gst_plugin_fault_handler_setup did not set the signal handler. Simple patch
attached. More complex patch could use _gst_plugin_fault_handler_is_setup, but
I am not sure what was the developers intention with this flag.

It would be also nice to have API for setting _gst_disable_segtrap = TRUE from
the application.

Thanks Michal


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