1/* PowerPC specific core note handling.
2   Copyright (C) 2007, 2008 Red Hat, Inc.
3   This file is part of Red Hat elfutils.
4
5   Red Hat elfutils is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by the
7   Free Software Foundation; version 2 of the License.
8
9   Red Hat elfutils is distributed in the hope that it will be useful, but
10   WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   General Public License for more details.
13
14   You should have received a copy of the GNU General Public License along
15   with Red Hat elfutils; if not, write to the Free Software Foundation,
16   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
17
18   Red Hat elfutils is an included package of the Open Invention Network.
19   An included package of the Open Invention Network is a package for which
20   Open Invention Network licensees cross-license their patents.  No patent
21   license is granted, either expressly or impliedly, by designation as an
22   included package.  Should you wish to participate in the Open Invention
23   Network licensing program, please visit www.openinventionnetwork.com
24   <http://www.openinventionnetwork.com>.  */
25
26#ifdef HAVE_CONFIG_H
27# include <config.h>
28#endif
29
30#include <elf.h>
31#include <inttypes.h>
32#include <stddef.h>
33#include <stdio.h>
34#include <sys/time.h>
35
36#ifndef BITS
37# define BITS 		32
38# define BACKEND	ppc_
39#else
40# define BITS 		64
41# define BACKEND	ppc64_
42#endif
43#include "libebl_CPU.h"
44
45static const Ebl_Register_Location prstatus_regs[] =
46  {
47#define GR(at, n, dwreg)						\
48    { .offset = at * BITS/8, .regno = dwreg, .count = n, .bits = BITS }
49
50    GR (0, 32, 0),		/* r0-r31 */
51    /*	32, 1,			   nip */
52    GR (33, 1, 66),		/* msr */
53    /*	34, 1,			   orig_gpr3 */
54    GR (35, 1, 109),		/* ctr */
55    GR (36, 1, 108),		/* lr */
56    GR (37, 1, 101),		/* xer */
57    GR (38, 1, 64),		/* cr */
58    GR (39, 1, 100),		/* mq */
59    /*  40, 1,			   trap */
60    GR (41, 1, 119),		/* dar */
61    GR (42, 1, 118),		/* dsisr */
62
63#undef	GR
64  };
65#define PRSTATUS_REGS_SIZE	(BITS / 8 * 48)
66
67static const Ebl_Register_Location fpregset_regs[] =
68  {
69    { .offset = 0, .regno = 32, .count = 32, .bits = 64 }, /* f0-f31 */
70    { .offset = 32 * 8 + 4, .regno = 65, .count = 1, .bits = 32 } /* fpscr */
71  };
72#define FPREGSET_SIZE		(33 * 8)
73
74static const Ebl_Register_Location altivec_regs[] =
75  {
76    /* vr0-vr31 */
77    { .offset = 0, .regno = 1124, .count = 32, .bits = 128 },
78    /* vscr XXX 67 is an unofficial assignment */
79    { .offset = 32 * 16, .regno = 67, .count = 1, .bits = 32, .pad = 12 },
80    /* vrsave */
81    { .offset = 33 * 16, .regno = 356, .count = 1, .bits = 32, .pad = 12 }
82  };
83
84static const Ebl_Register_Location spe_regs[] =
85  {
86    /* evr0-evr31
87    { .offset = 0, .regno = ???, .count = 32, .bits = 32 },
88     * acc *
89    { .offset = 32 * 4, .regno = ???, .count = 1, .bits = 64 }, */
90    /* spefscr */
91    { .offset = 34 * 4, .regno = 612, .count = 1, .bits = 32 }
92  };
93
94#define EXTRA_NOTES \
95  EXTRA_REGSET (NT_PPC_VMX, 34 * 16, altivec_regs) \
96  EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs)
97
98#if BITS == 32
99# define ULONG			uint32_t
100# define ALIGN_ULONG		4
101# define TYPE_ULONG		ELF_T_WORD
102# define TYPE_LONG		ELF_T_SWORD
103#else
104# define ULONG			uint64_t
105# define ALIGN_ULONG		8
106# define TYPE_ULONG		ELF_T_XWORD
107# define TYPE_LONG		ELF_T_SXWORD
108#endif
109#define PID_T			int32_t
110#define	UID_T			uint32_t
111#define	GID_T			uint32_t
112#define ALIGN_PID_T		4
113#define ALIGN_UID_T		4
114#define ALIGN_GID_T		4
115#define TYPE_PID_T		ELF_T_SWORD
116#define TYPE_UID_T		ELF_T_WORD
117#define TYPE_GID_T		ELF_T_WORD
118
119#define PRSTATUS_REGSET_ITEMS						      \
120  {									      \
121    .name = "nip", .type = ELF_T_ADDR, .format = 'x',			      \
122    .offset = offsetof (struct EBLHOOK(prstatus), pr_reg[32]),		      \
123    .group = "register"	       			  	       	 	      \
124  },								      	      \
125  {									      \
126    .name = "orig_gpr3", .type = TYPE_LONG, .format = 'd',		      \
127    .offset = offsetof (struct EBLHOOK(prstatus), pr_reg[34]),		      \
128    .group = "register"	       			  	       	 	      \
129  }
130
131#include "linux-core-note.c"
132