OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [gdb/] [sparc64fbsd-nat.c] - Blame information for rev 421

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 227 jeremybenn
/* Native-dependent code for FreeBSD/sparc64.
2
 
3
   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010
4
   Free Software Foundation, Inc.
5
 
6
   This file is part of GDB.
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
 
21
#include "defs.h"
22
#include "regcache.h"
23
#include "target.h"
24
 
25
#include "fbsd-nat.h"
26
#include "sparc64-tdep.h"
27
#include "sparc-nat.h"
28
 
29
 
30
/* Support for debugging kernel virtual memory images.  */
31
 
32
#include <sys/types.h>
33
#include <machine/pcb.h>
34
 
35
#include "bsd-kvm.h"
36
 
37
static int
38
sparc64fbsd_kvm_supply_pcb (struct regcache *regcache, struct pcb *pcb)
39
{
40
  /* The following is true for FreeBSD 5.4:
41
 
42
     The pcb contains %sp and %pc.  Since the register windows are
43
     explicitly flushed, we can find the `local' and `in' registers on
44
     the stack.  */
45
 
46
  /* The stack pointer shouldn't be zero.  */
47
  if (pcb->pcb_sp == 0)
48
    return 0;
49
 
50
  regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
51
  regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
52
 
53
  /* Synthesize %npc.  */
54
  pcb->pcb_pc += 4;
55
  regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, &pcb->pcb_pc);
56
 
57
  /* Read `local' and `in' registers from the stack.  */
58
  sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
59
 
60
  return 1;
61
}
62
 
63
 
64
/* Provide a prototype to silence -Wmissing-prototypes.  */
65
void _initialize_sparc64fbsd_nat (void);
66
 
67
void
68
_initialize_sparc64fbsd_nat (void)
69
{
70
  struct target_ops *t;
71
 
72
  /* Add some extra features to the generic SPARC target.  */
73
  t = sparc_target ();
74
  t->to_pid_to_exec_file = fbsd_pid_to_exec_file;
75
  t->to_find_memory_regions = fbsd_find_memory_regions;
76
  t->to_make_corefile_notes = fbsd_make_corefile_notes;
77
  add_target (t);
78
 
79
  sparc_gregset = &sparc64fbsd_gregset;
80
 
81
  /* Support debugging kernel virtual memory images.  */
82
  bsd_kvm_add_target (sparc64fbsd_kvm_supply_pcb);
83
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.