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e42180d7 C |
1 | /* Native-dependent code for PowerPC's running NetBSD, for GDB. |
2 | Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include <sys/types.h> | |
22 | #include <sys/ptrace.h> | |
23 | #include <machine/reg.h> | |
24 | #include <machine/frame.h> | |
25 | ||
26 | #include "defs.h" | |
27 | #include "inferior.h" | |
28 | #include "gdbcore.h" | |
ec3d358c | 29 | #include "ppc-tdep.h" |
e42180d7 C |
30 | |
31 | #define RF(dst, src) \ | |
32 | memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src)) | |
33 | ||
34 | #define RS(src, dst) \ | |
35 | memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst)) | |
36 | ||
37 | void | |
fba45db2 | 38 | fetch_inferior_registers (int regno) |
e42180d7 C |
39 | { |
40 | struct reg inferior_registers; | |
ec3d358c | 41 | #ifdef PT_GETFPREGS |
e42180d7 | 42 | struct fpreg inferior_fp_registers; |
ec3d358c | 43 | #endif |
e42180d7 C |
44 | int i; |
45 | ||
46 | ptrace (PT_GETREGS, inferior_pid, | |
47 | (PTRACE_ARG3_TYPE) & inferior_registers, 0); | |
48 | for (i = 0; i < 32; i++) | |
49 | RF (i, inferior_registers.fixreg[i]); | |
ec3d358c C |
50 | RF (PPC_LR_REGNUM, inferior_registers.lr); |
51 | RF (PPC_CR_REGNUM, inferior_registers.cr); | |
52 | RF (PPC_XER_REGNUM, inferior_registers.xer); | |
53 | RF (PPC_CTR_REGNUM, inferior_registers.ctr); | |
e42180d7 C |
54 | RF (PC_REGNUM, inferior_registers.pc); |
55 | ||
ec3d358c | 56 | #ifdef PT_GETFPREGS |
e42180d7 | 57 | ptrace (PT_GETFPREGS, inferior_pid, |
ec3d358c | 58 | (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); |
e42180d7 C |
59 | for (i = 0; i < 32; i++) |
60 | RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); | |
ec3d358c | 61 | #endif |
e42180d7 C |
62 | |
63 | registers_fetched (); | |
64 | } | |
65 | ||
66 | void | |
fba45db2 | 67 | store_inferior_registers (int regno) |
e42180d7 C |
68 | { |
69 | struct reg inferior_registers; | |
ec3d358c | 70 | #ifdef PT_SETFPREGS |
e42180d7 | 71 | struct fpreg inferior_fp_registers; |
ec3d358c | 72 | #endif |
e42180d7 C |
73 | int i; |
74 | ||
75 | for (i = 0; i < 32; i++) | |
76 | RS (i, inferior_registers.fixreg[i]); | |
ec3d358c C |
77 | RS (PPC_LR_REGNUM, inferior_registers.lr); |
78 | RS (PPC_CR_REGNUM, inferior_registers.cr); | |
79 | RS (PPC_XER_REGNUM, inferior_registers.xer); | |
80 | RS (PPC_CTR_REGNUM, inferior_registers.ctr); | |
e42180d7 C |
81 | RS (PC_REGNUM, inferior_registers.pc); |
82 | ||
83 | ptrace (PT_SETREGS, inferior_pid, | |
84 | (PTRACE_ARG3_TYPE) & inferior_registers, 0); | |
85 | ||
ec3d358c | 86 | #ifdef PT_SETFPREGS |
e42180d7 C |
87 | for (i = 0; i < 32; i++) |
88 | RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); | |
89 | ptrace (PT_SETFPREGS, inferior_pid, | |
90 | (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); | |
ec3d358c | 91 | #endif |
e42180d7 C |
92 | } |
93 | ||
94 | struct md_core | |
95 | { | |
96 | struct reg intreg; | |
ec3d358c | 97 | #ifdef PT_GETFPREGS |
e42180d7 | 98 | struct fpreg freg; |
ec3d358c | 99 | #endif |
e42180d7 C |
100 | }; |
101 | ||
102 | void | |
fba45db2 KB |
103 | fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
104 | CORE_ADDR ignore) | |
e42180d7 C |
105 | { |
106 | struct md_core *core_reg = (struct md_core *) core_reg_sect; | |
107 | int i; | |
108 | ||
109 | /* Integer registers */ | |
110 | for (i = 0; i < 32; i++) | |
111 | RF (i, core_reg->intreg.fixreg[i]); | |
ec3d358c C |
112 | RF (PPC_LR_REGNUM, core_reg->intreg.lr); |
113 | RF (PPC_CR_REGNUM, core_reg->intreg.cr); | |
114 | RF (PPC_XER_REGNUM, core_reg->intreg.xer); | |
115 | RF (PPC_CTR_REGNUM, core_reg->intreg.ctr); | |
e42180d7 C |
116 | RF (PC_REGNUM, core_reg->intreg.pc); |
117 | ||
ec3d358c | 118 | #ifdef PT_FPGETREGS |
e42180d7 C |
119 | /* Floating point registers */ |
120 | for (i = 0; i < 32; i++) | |
121 | RF (FP0_REGNUM + i, core_reg->freg.r_regs[i]); | |
ec3d358c | 122 | #endif |
e42180d7 C |
123 | |
124 | registers_fetched (); | |
125 | } | |
126 | ||
127 | /* Register that we are able to handle ppcnbsd core file formats. | |
128 | FIXME: is this really bfd_target_unknown_flavour? */ | |
129 | ||
130 | static struct core_fns ppcnbsd_core_fns = | |
131 | { | |
132 | bfd_target_unknown_flavour, /* core_flavour */ | |
133 | default_check_format, /* check_format */ | |
134 | default_core_sniffer, /* core_sniffer */ | |
135 | fetch_core_registers, /* core_read_registers */ | |
136 | NULL /* next */ | |
137 | }; | |
138 | ||
139 | void | |
fba45db2 | 140 | _initialize_ppcnbsd_nat (void) |
e42180d7 C |
141 | { |
142 | add_core_fns (&ppcnbsd_core_fns); | |
143 | } |