* config/a29k/tm-a29k.h (FRAME_CHAIN): If rsize is zero, return zero.

This commit is contained in:
Jim Kingdon 1993-09-17 04:54:52 +00:00
parent e8b114f7f4
commit f8efbf2296
2 changed files with 10 additions and 1 deletions

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@ -1,3 +1,7 @@
Thu Sep 16 20:37:06 1993 Jim Kingdon (kingdon@cirdan.cygnus.com)
* config/a29k/tm-a29k.h (FRAME_CHAIN): If rsize is zero, return zero.
Thu Sep 16 13:16:22 1993 Stu Grossman (grossman at cygnus.com)
* infrun.c (wait_for_inferior): Allow user to single step within

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@ -482,7 +482,12 @@ void init_frame_pc ();
/* These are mostly dummies for the a29k because INIT_FRAME_PC
sets prev->frame instead. */
#define FRAME_CHAIN(thisframe) ((thisframe)->frame + (thisframe)->rsize)
/* If rsize is zero, we must be at end of stack (or otherwise hosed).
If we don't check rsize, we loop forever if we see rsize == 0. */
#define FRAME_CHAIN(thisframe) \
((thisframe)->rsize == 0 \
? 0 \
: (thisframe)->frame + (thisframe)->rsize)
/* Determine if the frame has a 'previous' and back-traceable frame. */
#define FRAME_IS_UNCHAINED(frame) ((frame)->flags & TRANSPARENT)