Toolchain/binutils-gdb
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2002-11-15 Andrew Cagney <ac131313@redhat.com>

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* frame.c (frame_pc_unwind): New function.
	(frame_saved_regs_pc_unwind): New function.
	(frame_register_unwind): Pass unwind_cache instead of
	register_unwind_cache.
	(set_unwind_by_pc): Add unwind_pc parameter, set.
	(create_new_frame): Pass frame->pc_unwind to set_unwind_by_pc.
	(get_prev_frame): Ditto.
	* frame.h (frame_pc_unwind_ftype): Declare.
	(struct frame_info): Add pc_unwind, pc_unwind_cache_p and
	pc_unwind_cache.  Rename register_unwind_cache to unwind_cache.
	(frame_pc_unwind): Declare.
	* dummy-frame.c (dummy_frame_pc_unwind): New function.
	(struct dummy_frame): Add comment mentioning that values are for
	previous frame.
	* dummy-frame.h (dummy_frame_pc_unwind): Declare.
	* blockframe.c (file_frame_chain_valid): Use frame_pc_unwind.
	(generic_file_frame_chain_valid): Ditto.
	* stack.c (frame_info): Ditto.
This commit is contained in:
Andrew Cagney
2002-11-15 22:16:25 +00:00
parent d9285969ae
commit f18c5a7303
7 changed files with 109 additions and 18 deletions
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26
gdb/frame.h
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@@ -139,6 +139,12 @@ extern void frame_read_unsigned_register (struct frame_info *frame,
extern int frame_map_name_to_regnum (const char *name, int strlen);
extern const char *frame_map_regnum_to_name (int regnum);
/* Unwind the PC. Strictly speaking return the resume address of the
calling frame. For GDB, `pc' is the resume address and not a
specific register. */
extern CORE_ADDR frame_pc_unwind (struct frame_info *frame);
/* Return the location (and possibly value) of REGNUM for the previous
(older, up) frame. All parameters except VALUEP can be assumed to
@@ -163,6 +169,12 @@ typedef void (frame_register_unwind_ftype) (struct frame_info *frame,
int *realnump,
void *valuep);
/* Same as for registers above, but return the address at which the
calling frame would resume. */
typedef CORE_ADDR (frame_pc_unwind_ftype) (struct frame_info *frame,
void **unwind_cache);
/* Describe the saved registers of a frame. */
#if defined (EXTRA_FRAME_INFO) || defined (FRAME_FIND_SAVED_REGS)
@@ -252,10 +264,18 @@ struct frame_info
related unwind data. */
struct context *context;
/* See description above. Return the register value for the
previous frame. */
/* Unwind cache shared between the unwind functions - they had
better all agree as to the contents. */
void *unwind_cache;
/* See description above. The previous frame's registers. */
frame_register_unwind_ftype *register_unwind;
void *register_unwind_cache;
/* See description above. The previous frame's resume address.
Save the previous PC in a local cache. */
frame_pc_unwind_ftype *pc_unwind;
int pc_unwind_cache_p;
CORE_ADDR pc_unwind_cache;
/* Pointers to the next (down, inner, younger) and previous (up,
outer, older) frame_info's in the frame cache. */