1/* PowerPC specific core note handling.
2   Copyright (C) 2007, 2008 Red Hat, Inc.
3   This file is part of elfutils.
4
5   This file is free software; you can redistribute it and/or modify
6   it under the terms of either
7
8     * the GNU Lesser General Public License as published by the Free
9       Software Foundation; either version 3 of the License, or (at
10       your option) any later version
11
12   or
13
14     * the GNU General Public License as published by the Free
15       Software Foundation; either version 2 of the License, or (at
16       your option) any later version
17
18   or both in parallel, as here.
19
20   elfutils is distributed in the hope that it will be useful, but
21   WITHOUT ANY WARRANTY; without even the implied warranty of
22   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
23   General Public License for more details.
24
25   You should have received copies of the GNU General Public License and
26   the GNU Lesser General Public License along with this program.  If
27   not, see <http://www.gnu.org/licenses/>.  */
28
29#ifdef HAVE_CONFIG_H
30# include <config.h>
31#endif
32
33#include <elf.h>
34#include <inttypes.h>
35#include <stddef.h>
36#include <stdio.h>
37#include <sys/time.h>
38
39#ifndef BITS
40# define BITS 		32
41# define BACKEND	ppc_
42#else
43# define BITS 		64
44# define BACKEND	ppc64_
45#endif
46#include "libebl_CPU.h"
47
48static const Ebl_Register_Location prstatus_regs[] =
49  {
50#define GR(at, n, dwreg)						\
51    { .offset = at * BITS/8, .regno = dwreg, .count = n, .bits = BITS }
52
53    GR (0, 32, 0),		/* r0-r31 */
54    /*	32, 1,			   nip */
55    GR (33, 1, 66),		/* msr */
56    /*	34, 1,			   orig_gpr3 */
57    GR (35, 1, 109),		/* ctr */
58    GR (36, 1, 108),		/* lr */
59    GR (37, 1, 101),		/* xer */
60    GR (38, 1, 64),		/* cr */
61    GR (39, 1, 100),		/* mq */
62    /*  40, 1,			   trap */
63    GR (41, 1, 119),		/* dar */
64    GR (42, 1, 118),		/* dsisr */
65
66#undef	GR
67  };
68#define PRSTATUS_REGS_SIZE	(BITS / 8 * 48)
69
70static const Ebl_Register_Location fpregset_regs[] =
71  {
72    { .offset = 0, .regno = 32, .count = 32, .bits = 64 }, /* f0-f31 */
73    { .offset = 32 * 8 + 4, .regno = 65, .count = 1, .bits = 32 } /* fpscr */
74  };
75#define FPREGSET_SIZE		(33 * 8)
76
77static const Ebl_Register_Location altivec_regs[] =
78  {
79    /* vr0-vr31 */
80    { .offset = 0, .regno = 1124, .count = 32, .bits = 128 },
81    /* vscr XXX 67 is an unofficial assignment */
82    { .offset = 32 * 16, .regno = 67, .count = 1, .bits = 32, .pad = 12 },
83    /* vrsave */
84    { .offset = 33 * 16, .regno = 356, .count = 1, .bits = 32, .pad = 12 }
85  };
86
87static const Ebl_Register_Location spe_regs[] =
88  {
89    /* evr0-evr31
90    { .offset = 0, .regno = ???, .count = 32, .bits = 32 },
91     * acc *
92    { .offset = 32 * 4, .regno = ???, .count = 1, .bits = 64 }, */
93    /* spefscr */
94    { .offset = 34 * 4, .regno = 612, .count = 1, .bits = 32 }
95  };
96
97#define EXTRA_NOTES \
98  EXTRA_REGSET (NT_PPC_VMX, 34 * 16, altivec_regs) \
99  EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs)
100
101#if BITS == 32
102# define ULONG			uint32_t
103# define ALIGN_ULONG		4
104# define TYPE_ULONG		ELF_T_WORD
105# define TYPE_LONG		ELF_T_SWORD
106#else
107# define ULONG			uint64_t
108# define ALIGN_ULONG		8
109# define TYPE_ULONG		ELF_T_XWORD
110# define TYPE_LONG		ELF_T_SXWORD
111#endif
112#define PID_T			int32_t
113#define	UID_T			uint32_t
114#define	GID_T			uint32_t
115#define ALIGN_PID_T		4
116#define ALIGN_UID_T		4
117#define ALIGN_GID_T		4
118#define TYPE_PID_T		ELF_T_SWORD
119#define TYPE_UID_T		ELF_T_WORD
120#define TYPE_GID_T		ELF_T_WORD
121
122#define PRSTATUS_REGSET_ITEMS						      \
123  {									      \
124    .name = "nip", .type = ELF_T_ADDR, .format = 'x',			      \
125    .offset = offsetof (struct EBLHOOK(prstatus), pr_reg[32]),		      \
126    .group = "register", .pc_register = true				      \
127  },								      	      \
128  {									      \
129    .name = "orig_gpr3", .type = TYPE_LONG, .format = 'd',		      \
130    .offset = offsetof (struct EBLHOOK(prstatus), pr_reg[34]),		      \
131    .group = "register"	       			  	       	 	      \
132  }
133
134#include "linux-core-note.c"
135