/* Target-machine dependent code for Motorola MCore for GDB, the GNU debugger
- Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004 Free Software
+ Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include "gdbcmd.h"
#include "regcache.h"
-#include "symfile.h"
+#include "objfiles.h"
#include "gdbcore.h"
#include "inferior.h"
#include "arch-utils.h"
static struct frame_info *
analyze_dummy_frame (CORE_ADDR pc, CORE_ADDR frame)
{
- static struct frame_info *dummy = NULL;
-
- if (dummy == NULL)
- {
- struct frame_extra_info *extra_info;
- CORE_ADDR *saved_regs;
- dummy = deprecated_frame_xmalloc ();
- saved_regs = (CORE_ADDR *) xmalloc (SIZEOF_FRAME_SAVED_REGS);
- deprecated_set_frame_saved_regs_hack (dummy, saved_regs);
- extra_info = XMALLOC (struct frame_extra_info);
- deprecated_set_frame_extra_info_hack (dummy, extra_info);
- }
-
- deprecated_set_frame_next_hack (dummy, NULL);
- deprecated_set_frame_prev_hack (dummy, NULL);
+ struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+ struct frame_info *dummy
+ = deprecated_frame_xmalloc_with_cleanup (SIZEOF_FRAME_SAVED_REGS,
+ sizeof (struct frame_extra_info));
deprecated_update_frame_pc_hack (dummy, pc);
deprecated_update_frame_base_hack (dummy, frame);
get_frame_extra_info (dummy)->status = 0;
get_frame_extra_info (dummy)->framesize = 0;
- memset (deprecated_get_frame_saved_regs (dummy), '\000', SIZEOF_FRAME_SAVED_REGS);
mcore_analyze_prologue (dummy, 0, 0);
+ do_cleanups (old_chain);
return dummy;
}
if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), get_frame_base (fi),
get_frame_base (fi)))
- generic_pop_dummy_frame ();
+ deprecated_pop_dummy_frame ();
else
{
/* Write out the PC we saved. */
argument.
For gdb, this leaves us two routes, based on what
- USE_STRUCT_CONVENTION (mcore_use_struct_convention) returns.
- If this macro returns 1, gdb will call STORE_STRUCT_RETURN and
- EXTRACT_STRUCT_VALUE_ADDRESS.
-
- If USE_STRUCT_CONVENTION retruns 0, then gdb uses STORE_RETURN_VALUE
- and EXTRACT_RETURN_VALUE to store/fetch the functions return value. */
+ USE_STRUCT_CONVENTION (mcore_use_struct_convention) returns. If
+ this macro returns 1, gdb will call STORE_STRUCT_RETURN to store
+ the return value.
-/* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of
- EXTRACT_RETURN_VALUE? GCC_P is true if compiled with gcc
- and TYPE is the type (which is known to be struct, union or array). */
+ If USE_STRUCT_CONVENTION returns 0, then gdb uses
+ STORE_RETURN_VALUE and EXTRACT_RETURN_VALUE to store/fetch the
+ functions return value. */
static int
mcore_use_struct_convention (int gcc_p, struct type *type)
return (TYPE_LENGTH (type) > 8);
}
-/* Where is the return value saved? For MCore, a pointer to
- this buffer was passed as a hidden first argument, so
- just return that address. */
-
-static CORE_ADDR
-mcore_extract_struct_value_address (char *regbuf)
-{
- return extract_unsigned_integer (regbuf + DEPRECATED_REGISTER_BYTE (FIRST_ARGREG), DEPRECATED_REGISTER_SIZE);
-}
-
/* Given a function which returns a value of type TYPE, extract the
the function's return value and place the result into VALBUF.
REGBUF is the register contents of the target. */
static struct gdbarch *
mcore_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
- static LONGEST call_dummy_words[7] = { };
struct gdbarch_tdep *tdep = NULL;
struct gdbarch *gdbarch;
/* NOTE: cagney/2002-12-06: This can be deleted when this arch is
ready to unwind the PC first (see frame.c:get_prev_frame()). */
- set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
+ set_gdbarch_deprecated_init_frame_pc (gdbarch, deprecated_init_frame_pc_default);
/* Registers: */
/* Call Dummies: */
- set_gdbarch_deprecated_call_dummy_words (gdbarch, call_dummy_words);
- set_gdbarch_deprecated_sizeof_call_dummy_words (gdbarch, 0);
- set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
set_gdbarch_deprecated_saved_pc_after_call (gdbarch, mcore_saved_pc_after_call);
- set_gdbarch_function_start_offset (gdbarch, 0);
- set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_breakpoint_from_pc (gdbarch, mcore_breakpoint_from_pc);
set_gdbarch_deprecated_push_return_address (gdbarch, mcore_push_return_address);
set_gdbarch_deprecated_push_arguments (gdbarch, mcore_push_arguments);
set_gdbarch_deprecated_extract_return_value (gdbarch,
mcore_extract_return_value);
set_gdbarch_deprecated_store_struct_return (gdbarch, mcore_store_struct_return);
- set_gdbarch_deprecated_extract_struct_value_address (gdbarch,
- mcore_extract_struct_value_address);
set_gdbarch_skip_prologue (gdbarch, mcore_skip_prologue);
- set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_deprecated_frame_args_address (gdbarch, mcore_frame_args_address);
set_gdbarch_deprecated_frame_locals_address (gdbarch, mcore_frame_locals_address);
set_gdbarch_deprecated_pop_frame (gdbarch, mcore_pop_frame);
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