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authorAndrew Cagney <cagney@redhat.com>2003-07-15 17:35:00 +0000
committerAndrew Cagney <cagney@redhat.com>2003-07-15 17:35:00 +0000
commite8a89fe2788ee8bbcc84d7fb13d28f8b924318c4 (patch)
tree2e7708db39b39c8f99f93b031c6663f6a872015b /gdb/frame-unwind.h
parent0714963c79d71c6a88e14cfb855043566ec149bf (diff)
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2003-07-15 Andrew Cagney <cagney@redhat.com>
* frame.c (get_frame_id): Use frame_unwind_find_by_frame. (frame_register_unwind, create_new_frame): Ditto. (legacy_get_prev_frame, get_frame_type): Ditto. (get_frame_base_address): Use frame_base_find_by_frame. (get_frame_locals_address): Use frame_base_find_by_frame. (get_frame_args_address): Use frame_base_find_by_frame. * frame-base.h (frame_base_sniffer_ftype): Declare. (frame_base_append_sniffer): Declare. (frame_base_find_by_frame): Replace frame_base_find_by_pc. * frame-base.c (append_predicate): Add a "sniffer" parameter. (frame_base_append_sniffer): New function. (frame_base_append_predicate): Add a NULL sniffer. (frame_base_find_by_frame): Replace "frame_base_find_by_pc". (struct frame_base_table): Add "sniffer". (frame_base_free): Free the "sniffer" table. * frame-unwind.h (frame_unwind_sniffer_ftype): Define. (frame_unwind_append_sniffer): Declare. (frame_unwind_find_by_frame): Replace frame_unwind_find_by_pc. * frame-unwind.c (frame_unwind_free): Free the "sniffer" table. (struct frame_unwind_table): Add "sniffer", delete "middle". (append_predicate): Add "sniffer" parameter, append the sniffer. (frame_unwind_init): Update append_predicate call. (frame_unwind_append_sniffer): New function. (frame_unwind_append_predicate): Update append_predicate call. (frame_unwind_find_by_frame): Replace frame_unwind_find_by_pc.
Diffstat (limited to 'gdb/frame-unwind.h')
-rw-r--r--gdb/frame-unwind.h35
1 files changed, 20 insertions, 15 deletions
diff --git a/gdb/frame-unwind.h b/gdb/frame-unwind.h
index ad1efdf..80ce4b6 100644
--- a/gdb/frame-unwind.h
+++ b/gdb/frame-unwind.h
@@ -30,25 +30,12 @@ struct regcache;
#include "frame.h" /* For enum frame_type. */
-/* Return the frame unwind methods for the function that contains PC,
- or NULL if this this unwinder can't handle this frame. */
-
+/* For compatibility with the old frame code. See end of header for
+ new methods. */
typedef const struct frame_unwind *(frame_unwind_p_ftype) (CORE_ADDR pc);
-
-/* Add a frame unwinder to the list. The predicates are polled in the
- order that they are appended. The initial list contains the dummy
- frame's predicate. */
-
extern void frame_unwind_append_predicate (struct gdbarch *gdbarch,
frame_unwind_p_ftype *p);
-/* Iterate through the list of frame unwinders until one returns an
- implementation. */
-
-extern const struct frame_unwind *frame_unwind_find_by_pc (struct gdbarch
- *gdbarch,
- CORE_ADDR pc);
-
/* The following unwind functions assume a chain of frames forming the
sequence: (outer) prev <-> this <-> next (inner). All the
functions are called with called with the next frame's `struct
@@ -139,4 +126,22 @@ struct frame_unwind
frame_prev_register_ftype *prev_register;
};
+/* Given the NEXT frame, take a wiff of THIS frame's registers (namely
+ the PC and attributes) and if it is the applicable unwinder return
+ the unwind methods, or NULL if it is not. */
+
+typedef const struct frame_unwind *(frame_unwind_sniffer_ftype) (struct frame_info *next_frame);
+
+/* Add a frame sniffer to the list. The predicates are polled in the
+ order that they are appended. The initial list contains the dummy
+ frame sniffer. */
+
+extern void frame_unwind_append_sniffer (struct gdbarch *gdbarch,
+ frame_unwind_sniffer_ftype *sniffer);
+
+/* Iterate through the next frame's sniffers until one returns with an
+ unwinder implementation. */
+
+extern const struct frame_unwind *frame_unwind_find_by_frame (struct frame_info *next_frame);
+
#endif