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* frame.c (get_frame_id): Default to outer_frame_id if the this_id
        method does not supply an ID.  Assert that the result is not
        null_frame_id.
        (outer_frame_id): New.
        (frame_id_p): Accept outer_frame_id.
        (frame_id_eq): Allow outer_frame_id to be equal to itself.
        (frame_find_by_id): Revert previous local workarounds.
        (get_prev_frame_1): Adjust end-of-stack check to test outer_frame_id.
        * frame.h (null_frame_id, frame_id_p): Update comments.
        (outer_frame_id): Declare.
        * infrun.c (handle_inferior_event): Do not treat all steps from the
        outermost frame as subroutine calls.

        * libunwind-frame.c (libunwind_frame_this_id): Do not clear THIS_ID.
        * hppa-tdep.c (hppa_stub_frame_this_id): Likewise.
        * ia64-tdep.c (ia64_frame_this_id): Likewise.
        (ia64_libunwind_frame_this_id, ia64_libunwind_sigtramp_frame_this_id):
        Use outer_frame_id instead of null_frame_id.
        * amd64obsd-tdep.c (amd64obsd_trapframe_cache): Use outer_frame_id.
        * i386obsd-tdep.c (i386obsd_trapframe_cache): Likewise.
        * inline-frame.c (inline_frame_this_id): Refuse outer_frame_id.
        * thread.c (restore_selected_frame): Update comment and remove
        frame_id_p check.

        gdb/doc/
        * gdbint.texinfo (Unwinding the Frame ID): Reference outer_frame_id.
This commit is contained in:
Joel Brobecker 2009-09-13 16:28:29 +00:00
parent 97b11f4094
commit 005ca36a8b
13 changed files with 93 additions and 30 deletions
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10
gdb/frame.h
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@ -142,9 +142,14 @@ struct frame_id
/* Methods for constructing and comparing Frame IDs. */
/* For convenience. All fields are zero. */
/* For convenience. All fields are zero. This means "there is no frame". */
extern const struct frame_id null_frame_id;
/* This means "there is no frame ID, but there is a frame". It should be
replaced by best-effort frame IDs for the outermost frame, somehow.
The implementation is only special_addr_p set. */
extern const struct frame_id outer_frame_id;
/* Flag to control debugging. */
extern int frame_debug;
@ -170,7 +175,8 @@ extern struct frame_id frame_id_build_special (CORE_ADDR stack_addr,
extern struct frame_id frame_id_build_wild (CORE_ADDR stack_addr);
/* Returns non-zero when L is a valid frame (a valid frame has a
non-zero .base). */
non-zero .base). The outermost frame is valid even without an
ID. */
extern int frame_id_p (struct frame_id l);
/* Returns non-zero when L is a valid frame representing an inlined