diff options
Diffstat (limited to 'gdb/frame-unwind.h')
| -rw-r--r-- | gdb/frame-unwind.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gdb/frame-unwind.h b/gdb/frame-unwind.h index 863f259..2c67c96 100644 --- a/gdb/frame-unwind.h +++ b/gdb/frame-unwind.h @@ -82,12 +82,27 @@ typedef void (frame_unwind_id_ftype) (struct frame_info * frame, void **unwind_cache, struct frame_id * id); +/* Discard the frame by restoring the registers (in regcache) back to + that of the caller. */ +/* NOTE: cagney/2003-01-19: While at present the callers all pop each + frame in turn, the implementor should try to code things so that + any frame can be popped directly. */ +/* FIXME: cagney/2003-01-19: Since both FRAME and REGCACHE refer to a + common register cache, care must be taken when restoring the + registers. The `correct fix' is to first first save the registers + in a scratch cache, and second write that scratch cache back to to + the real register cache. */ + +typedef void (frame_unwind_pop_ftype) (struct frame_info *frame, + void **unwind_cache, + struct regcache *regcache); struct frame_unwind { /* Should the frame's type go here? */ /* Should an attribute indicating the frame's address-in-block go here? */ + frame_unwind_pop_ftype *pop; frame_unwind_pc_ftype *pc; frame_unwind_id_ftype *id; frame_unwind_reg_ftype *reg; |