gdb macros fails

Tim Cussins timcussins at
Thu Oct 18 13:04:13 UTC 2007

Hi Leon

IIRC in rtems 4.6, front_flag is a member of struct Heap_Block_struct
which is defined in "cpukit/score/include/rtems/score/heap.h"

As I undrstand it, the heap manager has undergone a few changes, and
this member has been renamed. I'll leave it to the experts 
to tell you if it's usage has changed also (the LSB has special meaning
in rtems 4.6).

This should get you started.



On Thu, 18 Oct 2007 14:49:26 +0200, "Leon Pollak" <leonp at>
> Hello, all.
> I tried to use for the first time the gdb macros rtems_heap_walk and 
> rtems_workspace_walk.
> Both failed saying:
> There is no member named front_flag.
> I shall be very thankful for clarification where this flag may be (the
> macros 
> file has the last change dated 7Aug2006, rtems is 4.7).
> Many thanks ahead.
> -- 
> Leon
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> rtems-users at

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