* ldlang.c (walk_wild_section): Move sec == NULL case out of loop.
[deliverable/binutils-gdb.git] / gdb / ppc-linux-nat.c
CommitLineData
c877c8e6 1/* PPC linux native support.
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2 Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
3 Free Software Foundation, Inc.
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4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21#include "defs.h"
22#include "frame.h"
23#include "inferior.h"
24#include "gdbcore.h"
4e052eda 25#include "regcache.h"
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26
27#include <sys/types.h>
28#include <sys/param.h>
29#include <signal.h>
30#include <sys/user.h>
31#include <sys/ioctl.h>
32#include <sys/wait.h>
33#include <fcntl.h>
34#include <sys/procfs.h>
35
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MS
36/* Prototypes for supply_gregset etc. */
37#include "gregset.h"
38
c877c8e6 39int
fba45db2 40kernel_u_size (void)
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41{
42 return (sizeof (struct user));
43}
44
45static int regmap[] =
46{PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
47 PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
48 PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
49 PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
50 PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
51 PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
52 PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
53 PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
54 PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ};
55
56int
57ppc_register_u_addr (int ustart, int regnum)
58{
59 return (ustart + 4 * regmap[regnum]);
60}
61
50c9bd31 62void
8ae45c11 63supply_gregset (gdb_gregset_t *gregsetp)
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64{
65 int regi;
2ac44c70 66 register elf_greg_t *regp = (elf_greg_t *) gregsetp;
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67
68 for (regi = 0; regi < 32; regi++)
69 supply_register (regi, (char *) (regp + regi));
70
71 for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++)
72 supply_register (regi, (char *) (regp + regmap[regi]));
73}
74
fdb28ac4 75void
8ae45c11 76fill_gregset (gdb_gregset_t *gregsetp, int regno)
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77{
78 int regi;
2ac44c70 79 elf_greg_t *regp = (elf_greg_t *) gregsetp;
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80
81#define COPY_REG(_idx_,_regi_) \
82 if ((regno == -1) || regno == _regi_) \
83 memcpy (regp + _idx_, &registers[REGISTER_BYTE (_regi_)], \
84 REGISTER_RAW_SIZE (_regi_))
85
86 for (regi = 0; regi < 32; regi++)
87 {
88 COPY_REG (regmap[regi], regi);
89 }
90
91 for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++)
92 {
93 COPY_REG (regmap[regi], regi);
94 }
95}
96
50c9bd31 97void
8ae45c11 98supply_fpregset (gdb_fpregset_t * fpregsetp)
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99{
100 int regi;
101 for (regi = 0; regi < 32; regi++)
102 {
103 supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
104 }
105}
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106
107/* Given a pointer to a floating point register set in /proc format
108 (fpregset_t *), update the register specified by REGNO from gdb's idea
109 of the current floating point register set. If REGNO is -1, update
110 them all. */
111
112void
8ae45c11 113fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
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114{
115 int regi;
116 char *to;
117 char *from;
118
119 for (regi = 0; regi < 32; regi++)
120 {
121 if ((regno == -1) || (regno == FP0_REGNUM + regi))
122 {
123 from = (char *) &registers[REGISTER_BYTE (FP0_REGNUM + regi)];
124 to = (char *) (*fpregsetp + regi);
125 memcpy (to, from, REGISTER_RAW_SIZE (FP0_REGNUM + regi));
126 }
127 }
128}
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