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authorJoel Brobecker <brobecker@gnat.com>2009-09-13 16:28:29 +0000
committerJoel Brobecker <brobecker@gnat.com>2009-09-13 16:28:29 +0000
commit005ca36a8b302b4d6da415e0cf66d5d9f684a8da (patch)
tree6b29baf5a48f0db070c34c5922c2e111ffc52a1d /gdb/frame.h
parent97b11f4094739634d104156f5c586ba7916ef0fa (diff)
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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.
Diffstat (limited to 'gdb/frame.h')
-rw-r--r--gdb/frame.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/gdb/frame.h b/gdb/frame.h
index 611c6d3..994b529 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -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