/* Target dependent code for CRIS, for GDB, the GNU debugger.
- Copyright 2001 Free Software Foundation, Inc.
+ Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
Contributed by Axis Communications AB.
Written by Hendrik Ruijter, Stefan Andersson, and Orjan Friberg.
short source_register;
/* This frame is with respect to a leaf until a push srp is found. */
- fi->extra_info->leaf_function = 1;
+ get_frame_extra_info (fi)->leaf_function = 1;
/* This frame is without the FP until a push fp is found. */
have_fp = 0;
{
return ip;
}
- fi->extra_info->leaf_function = 0;
+ get_frame_extra_info (fi)->leaf_function = 0;
}
else if (regno == FP_REGNUM)
{
get_frame_saved_regs (fi)[regno] = get_frame_base (fi) - val;
val -= 4;
}
- if (fi->extra_info->leaf_function)
+ if (get_frame_extra_info (fi)->leaf_function)
{
/* Set the register SP to contain the stack pointer of
the caller. */
CORE_ADDR
cris_skip_prologue_main (CORE_ADDR pc, int frameless_p)
{
- struct frame_info fi;
- static struct frame_extra_info fei;
+ struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+ struct frame_info *fi;
struct symtab_and_line sal = find_pc_line (pc, 0);
int best_limit;
CORE_ADDR pc_after_prologue;
- /* frame_info now contains dynamic memory. Since fi is a dummy here,
- I use static memory for extra_info, and don't bother allocating
- memory for saved_regs. */
- memset (&fi, 0, sizeof (fi));
- fi.extra_info = &fei;
+ /* frame_info now contains dynamic memory. Since fi is a dummy
+ here, I don't bother allocating memory for saved_regs. */
+ fi = deprecated_frame_xmalloc_with_cleanup (0, sizeof (struct frame_extra_info));
/* If there is no symbol information then sal.end == 0, and we end up
examining only the first instruction in the function prologue.
else
best_limit = pc + 100;
- pc_after_prologue = cris_examine (pc, best_limit, &fi, frameless_p);
+ pc_after_prologue = cris_examine (pc, best_limit, fi, frameless_p);
+ do_cleanups (old_chain);
return pc_after_prologue;
}
/* See frame.h. Determines the address of all registers in the current stack
frame storing each in frame->saved_regs. Space for frame->saved_regs shall
- be allocated by FRAME_INIT_SAVED_REGS using either frame_saved_regs_zalloc
- or frame_obstack_alloc. */
+ be allocated by FRAME_INIT_SAVED_REGS using frame_saved_regs_zalloc. */
void
cris_frame_init_saved_regs (struct frame_info *fi)
CORE_ADDR ip;
struct symtab_and_line sal;
int best_limit;
- char *dummy_regs = deprecated_generic_find_dummy_frame (get_frame_pc (fi), fi->frame);
+ char *dummy_regs = deprecated_generic_find_dummy_frame (get_frame_pc (fi),
+ get_frame_base (fi));
/* Examine the entire prologue. */
register int frameless_p = 0;
/* I don't see this ever happening, considering the context in which
cris_frame_init_saved_regs is called (always when we're not in
a dummy frame). */
- memcpy (&fi->saved_regs, dummy_regs, sizeof (fi->saved_regs));
+ memcpy (get_frame_saved_regs (fi), dummy_regs, SIZEOF_FRAME_SAVED_REGS);
}
else
{
void
cris_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
- if (fi->next)
+ if (get_next_frame (fi))
{
/* Called from get_prev_frame. */
- deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (fi->next));
+ deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (get_next_frame (fi)));
}
- fi->extra_info = (struct frame_extra_info *)
- frame_obstack_alloc (sizeof (struct frame_extra_info));
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
- fi->extra_info->return_pc = 0;
- fi->extra_info->leaf_function = 0;
+ get_frame_extra_info (fi)->return_pc = 0;
+ get_frame_extra_info (fi)->leaf_function = 0;
- if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi),
+ get_frame_base (fi),
+ get_frame_base (fi)))
{
/* We need to setup fi->frame here because run_stack_dummy gets it wrong
by assuming it's always FP. */
- deprecated_update_frame_base_hack (fi, deprecated_read_register_dummy (get_frame_pc (fi), fi->frame,
- SP_REGNUM));
- fi->extra_info->return_pc =
- deprecated_read_register_dummy (get_frame_pc (fi), fi->frame, PC_REGNUM);
+ deprecated_update_frame_base_hack (fi, deprecated_read_register_dummy (get_frame_pc (fi), get_frame_base (fi), SP_REGNUM));
+ get_frame_extra_info (fi)->return_pc =
+ deprecated_read_register_dummy (get_frame_pc (fi),
+ get_frame_base (fi), PC_REGNUM);
/* FIXME: Is this necessarily true? */
- fi->extra_info->leaf_function = 0;
+ get_frame_extra_info (fi)->leaf_function = 0;
}
else
{
if (get_frame_saved_regs (fi)[SRP_REGNUM] != 0)
{
/* SRP was saved on the stack; non-leaf function. */
- fi->extra_info->return_pc =
+ get_frame_extra_info (fi)->return_pc =
read_memory_integer (get_frame_saved_regs (fi)[SRP_REGNUM],
REGISTER_RAW_SIZE (SRP_REGNUM));
}
else
{
/* SRP is still in a register; leaf function. */
- fi->extra_info->return_pc = read_register (SRP_REGNUM);
+ get_frame_extra_info (fi)->return_pc = read_register (SRP_REGNUM);
/* FIXME: Should leaf_function be set to 1 here? */
- fi->extra_info->leaf_function = 1;
+ get_frame_extra_info (fi)->leaf_function = 1;
}
}
}
CORE_ADDR
cris_frame_chain (struct frame_info *fi)
{
- if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi),
+ get_frame_base (fi),
+ get_frame_base (fi)))
{
- return fi->frame;
+ return get_frame_base (fi);
}
else if (!inside_entry_file (get_frame_pc (fi)))
{
CORE_ADDR
cris_frame_saved_pc (struct frame_info *fi)
{
- return fi->extra_info->return_pc;
+ return get_frame_extra_info (fi)->return_pc;
}
/* Setup the function arguments for calling a function in the inferior. */
register int regno;
register int stack_offset = 0;
- if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), fi->frame, fi->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi),
+ get_frame_base (fi),
+ get_frame_base (fi)))
{
/* This happens when we hit a breakpoint set at the entry point,
when returning from a dummy frame. */
}
/* Restore the PC. */
- write_register (PC_REGNUM, fi->extra_info->return_pc);
+ write_register (PC_REGNUM, get_frame_extra_info (fi)->return_pc);
}
flush_cached_frames ();
}
if (storage_needed > 0)
{
symbol_table = (asymbol **) xmalloc (storage_needed);
- back_to = make_cleanup (free, (PTR) symbol_table);
+ back_to = make_cleanup (free, symbol_table);
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
for (i = 0; i < number_of_symbols; i++)
set_gdbarch_frameless_function_invocation
(gdbarch, cris_frameless_function_invocation);
set_gdbarch_frame_chain (gdbarch, cris_frame_chain);
- set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
set_gdbarch_frame_saved_pc (gdbarch, cris_frame_saved_pc);
set_gdbarch_saved_pc_after_call (gdbarch, cris_saved_pc_after_call);