[PATCH] Cygwin: Raise dumpstack frame limit to 32

Corinna Vinschen corinna-cygwin@cygwin.com
Fri Nov 8 09:25:00 GMT 2019


On Nov  7 16:13, Mark Geisert wrote:
> Create a #define for the limit and raise it from 16 to 32.
> ---
>  winsup/cygwin/exceptions.cc | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
> index 132fea427..3e7d7275c 100644
> --- a/winsup/cygwin/exceptions.cc
> +++ b/winsup/cygwin/exceptions.cc
> @@ -42,6 +42,7 @@ details. */
>  
>  #define CALL_HANDLER_RETRY_OUTER 10
>  #define CALL_HANDLER_RETRY_INNER 10
> +#define DUMPSTACK_FRAME_LIMIT    32
>  
>  PWCHAR debugger_command;
>  extern uint8_t _sigbe;
> @@ -382,7 +383,7 @@ cygwin_exception::dumpstack ()
>  #else
>        small_printf ("Stack trace:\r\nFrame     Function  Args\r\n");
>  #endif
> -      for (i = 0; i < 16 && thestack++; i++)
> +      for (i = 0; i < DUMPSTACK_FRAME_LIMIT && thestack++; i++)
>  	{
>  	  small_printf (_AFMT "  " _AFMT, thestack.sf.AddrFrame.Offset,
>  			thestack.sf.AddrPC.Offset);
> @@ -392,7 +393,8 @@ cygwin_exception::dumpstack ()
>  	  small_printf (")\r\n");
>  	}
>        small_printf ("End of stack trace%s\n",
> -		    i == 16 ? " (more stack frames may be present)" : "");
> +		    i == DUMPSTACK_FRAME_LIMIT ?
> +		        " (more stack frames may be present)" : "");
>        if (h)
>  	NtClose (h);
>      }
> -- 
> 2.21.0

Pushed, including the release msg patch.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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