| @@ -1,195 +1,195 @@ | | | @@ -1,195 +1,195 @@ |
1 | /* Native-dependent code for NetBSD/powerpc. | | 1 | /* Native-dependent code for NetBSD/powerpc. |
2 | | | 2 | |
3 | Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc. | | 3 | Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc. |
4 | | | 4 | |
5 | Contributed by Wasabi Systems, Inc. | | 5 | Contributed by Wasabi Systems, Inc. |
6 | | | 6 | |
7 | This file is part of GDB. | | 7 | This file is part of GDB. |
8 | | | 8 | |
9 | This program is free software; you can redistribute it and/or modify | | 9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | | 10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2 of the License, or | | 11 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. | | 12 | (at your option) any later version. |
13 | | | 13 | |
14 | This program is distributed in the hope that it will be useful, | | 14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | | 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | | 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. | | 17 | GNU General Public License for more details. |
18 | | | 18 | |
19 | You should have received a copy of the GNU General Public License | | 19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | | 20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, | | 21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | | 22 | Boston, MA 02110-1301, USA. */ |
23 | | | 23 | |
24 | #include <sys/types.h> | | 24 | #include <sys/types.h> |
25 | #include <sys/ptrace.h> | | 25 | #include <sys/ptrace.h> |
26 | #include <machine/reg.h> | | 26 | #include <machine/reg.h> |
27 | #include <machine/frame.h> | | 27 | #include <machine/frame.h> |
28 | #include <machine/pcb.h> | | 28 | #include <machine/pcb.h> |
29 | | | 29 | |
30 | #include "defs.h" | | 30 | #include "defs.h" |
31 | #include "gdbcore.h" | | 31 | #include "gdbcore.h" |
32 | #include "inferior.h" | | 32 | #include "inferior.h" |
33 | #include "regcache.h" | | 33 | #include "regcache.h" |
34 | | | 34 | |
35 | #include "gdb_assert.h" | | 35 | #include "gdb_assert.h" |
36 | | | 36 | |
37 | #include "nbsd-nat.h" | | 37 | #include "nbsd-nat.h" |
38 | #include "ppc-tdep.h" | | 38 | #include "ppc-tdep.h" |
39 | #include "ppcnbsd-tdep.h" | | 39 | #include "ppcnbsd-tdep.h" |
40 | #include "bsd-kvm.h" | | 40 | #include "bsd-kvm.h" |
41 | #include "inf-ptrace.h" | | 41 | #include "inf-ptrace.h" |
42 | | | 42 | |
43 | /* Returns true if PT_GETREGS fetches this register. */ | | 43 | /* Returns true if PT_GETREGS fetches this register. */ |
44 | | | 44 | |
45 | static int | | 45 | static int |
46 | getregs_supplies (int regnum) | | 46 | getregs_supplies (int regnum) |
47 | { | | 47 | { |
48 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); | | 48 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); |
49 | | | 49 | |
50 | return ((regnum >= tdep->ppc_gp0_regnum | | 50 | return ((regnum >= tdep->ppc_gp0_regnum |
51 | && regnum < tdep->ppc_gp0_regnum + ppc_num_gprs) | | 51 | && regnum < tdep->ppc_gp0_regnum + ppc_num_gprs) |
52 | || regnum == tdep->ppc_lr_regnum | | 52 | || regnum == tdep->ppc_lr_regnum |
53 | || regnum == tdep->ppc_cr_regnum | | 53 | || regnum == tdep->ppc_cr_regnum |
54 | || regnum == tdep->ppc_xer_regnum | | 54 | || regnum == tdep->ppc_xer_regnum |
55 | || regnum == tdep->ppc_ctr_regnum | | 55 | || regnum == tdep->ppc_ctr_regnum |
56 | || regnum == PC_REGNUM); | | 56 | || regnum == PC_REGNUM); |
57 | } | | 57 | } |
58 | | | 58 | |
59 | /* Like above, but for PT_GETFPREGS. */ | | 59 | /* Like above, but for PT_GETFPREGS. */ |
60 | | | 60 | |
61 | static int | | 61 | static int |
62 | getfpregs_supplies (int regnum) | | 62 | getfpregs_supplies (int regnum) |
63 | { | | 63 | { |
64 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); | | 64 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); |
65 | | | 65 | |
66 | /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating | | 66 | /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating |
67 | point registers. Traditionally, GDB's register set has still | | 67 | point registers. Traditionally, GDB's register set has still |
68 | listed the floating point registers for such machines, so this | | 68 | listed the floating point registers for such machines, so this |
69 | code is harmless. However, the new E500 port actually omits the | | 69 | code is harmless. However, the new E500 port actually omits the |
70 | floating point registers entirely from the register set --- they | | 70 | floating point registers entirely from the register set --- they |
71 | don't even have register numbers assigned to them. | | 71 | don't even have register numbers assigned to them. |
72 | | | 72 | |
73 | It's not clear to me how best to update this code, so this assert | | 73 | It's not clear to me how best to update this code, so this assert |
74 | will alert the first person to encounter the NetBSD/E500 | | 74 | will alert the first person to encounter the NetBSD/E500 |
75 | combination to the problem. */ | | 75 | combination to the problem. */ |
76 | gdb_assert (ppc_floating_point_unit_p (current_gdbarch)); | | 76 | gdb_assert (ppc_floating_point_unit_p (current_gdbarch)); |
77 | | | 77 | |
78 | return ((regnum >= tdep->ppc_fp0_regnum | | 78 | return ((regnum >= tdep->ppc_fp0_regnum |
79 | && regnum < tdep->ppc_fp0_regnum + ppc_num_fprs) | | 79 | && regnum < tdep->ppc_fp0_regnum + ppc_num_fprs) |
80 | || regnum == tdep->ppc_fpscr_regnum); | | 80 | || regnum == tdep->ppc_fpscr_regnum); |
81 | } | | 81 | } |
82 | | | 82 | |
83 | static void | | 83 | static void |
84 | ppcnbsd_fetch_inferior_registers (int regnum) | | 84 | ppcnbsd_fetch_inferior_registers (int regnum) |
85 | { | | 85 | { |
86 | if (regnum == -1 || getregs_supplies (regnum)) | | 86 | if (regnum == -1 || getregs_supplies (regnum)) |
87 | { | | 87 | { |
88 | struct reg regs; | | 88 | struct reg regs; |
89 | | | 89 | |
90 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), | | 90 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
91 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) | | 91 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
92 | perror_with_name (_("Couldn't get registers")); | | 92 | perror_with_name (_("Couldn't get registers")); |
93 | | | 93 | |
94 | ppc_supply_gregset (&ppcnbsd_gregset, current_regcache, | | 94 | ppc_supply_gregset (&ppcnbsd_gregset, current_regcache, |
95 | regnum, ®s, sizeof regs); | | 95 | regnum, ®s, sizeof regs); |
96 | } | | 96 | } |
97 | | | 97 | |
98 | if (regnum == -1 || getfpregs_supplies (regnum)) | | 98 | if (regnum == -1 || getfpregs_supplies (regnum)) |
99 | { | | 99 | { |
100 | struct fpreg fpregs; | | 100 | struct fpreg fpregs; |
101 | | | 101 | |
102 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), | | 102 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
103 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) | | 103 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
104 | perror_with_name (_("Couldn't get FP registers")); | | 104 | perror_with_name (_("Couldn't get FP registers")); |
105 | | | 105 | |
106 | ppc_supply_fpregset (&ppcnbsd_fpregset, current_regcache, | | 106 | ppc_supply_fpregset (&ppcnbsd_fpregset, current_regcache, |
107 | regnum, &fpregs, sizeof fpregs); | | 107 | regnum, &fpregs, sizeof fpregs); |
108 | } | | 108 | } |
109 | } | | 109 | } |
110 | | | 110 | |
111 | static void | | 111 | static void |
112 | ppcnbsd_store_inferior_registers (int regnum) | | 112 | ppcnbsd_store_inferior_registers (int regnum) |
113 | { | | 113 | { |
114 | if (regnum == -1 || getregs_supplies (regnum)) | | 114 | if (regnum == -1 || getregs_supplies (regnum)) |
115 | { | | 115 | { |
116 | struct reg regs; | | 116 | struct reg regs; |
117 | | | 117 | |
118 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), | | 118 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
119 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) | | 119 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
120 | perror_with_name (_("Couldn't get registers")); | | 120 | perror_with_name (_("Couldn't get registers")); |
121 | | | 121 | |
122 | ppc_collect_gregset (&ppcnbsd_gregset, current_regcache, | | 122 | ppc_collect_gregset (&ppcnbsd_gregset, current_regcache, |
123 | regnum, ®s, sizeof regs); | | 123 | regnum, ®s, sizeof regs); |
124 | | | 124 | |
125 | if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), | | 125 | if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), |
126 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) | | 126 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
127 | perror_with_name (_("Couldn't write registers")); | | 127 | perror_with_name (_("Couldn't write registers")); |
128 | } | | 128 | } |
129 | | | 129 | |
130 | if (regnum == -1 || getfpregs_supplies (regnum)) | | 130 | if (regnum == -1 || getfpregs_supplies (regnum)) |
131 | { | | 131 | { |
132 | struct fpreg fpregs; | | 132 | struct fpreg fpregs; |
133 | | | 133 | |
134 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), | | 134 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
135 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) | | 135 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
136 | perror_with_name (_("Couldn't get FP registers")); | | 136 | perror_with_name (_("Couldn't get FP registers")); |
137 | | | 137 | |
138 | ppc_collect_fpregset (&ppcnbsd_fpregset, current_regcache, | | 138 | ppc_collect_fpregset (&ppcnbsd_fpregset, current_regcache, |
139 | regnum, &fpregs, sizeof fpregs); | | 139 | regnum, &fpregs, sizeof fpregs); |
140 | | | 140 | |
141 | if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), | | 141 | if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), |
142 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) | | 142 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
143 | perror_with_name (_("Couldn't set FP registers")); | | 143 | perror_with_name (_("Couldn't set FP registers")); |
144 | } | | 144 | } |
145 | } | | 145 | } |
146 | | | 146 | |
147 | static int | | 147 | static int |
148 | ppcnbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) | | 148 | ppcnbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) |
149 | { | | 149 | { |
150 | struct switchframe sf; | | 150 | struct switchframe sf; |
151 | struct callframe cf; | | 151 | struct callframe cf; |
152 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); | | 152 | struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); |
153 | int i; | | 153 | int i; |
154 | | | 154 | |
155 | /* The stack pointer shouldn't be zero. */ | | 155 | /* The stack pointer shouldn't be zero. */ |
156 | if (pcb->pcb_sp == 0) | | 156 | if (pcb->pcb_sp == 0) |
157 | return 0; | | 157 | return 0; |
158 | | | 158 | |
159 | read_memory (pcb->pcb_sp, (gdb_byte *)&sf, sizeof sf); | | 159 | read_memory (pcb->pcb_sp, (gdb_byte *)&sf, sizeof sf); |
160 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &sf.cr); | | 160 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &sf.sf_cr); |
161 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 2, &sf.fixreg2); | | 161 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 2, &sf.sf_fixreg2); |
162 | for (i = 0 ; i < 19 ; i++) | | 162 | for (i = 0 ; i < 19 ; i++) |
163 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 13 + i, | | 163 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 13 + i, |
164 | &sf.fixreg[i]); | | 164 | &sf.sf_fixreg[i]); |
165 | | | 165 | |
166 | read_memory(sf.sp, (gdb_byte *)&cf, sizeof(cf)); | | 166 | read_memory(sf.sf_sp, (gdb_byte *)&cf, sizeof(cf)); |
167 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 30, &cf.r30); | | 167 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 30, &cf.cf_r30); |
168 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 31, &cf.r31); | | 168 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 31, &cf.cf_r31); |
169 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 1, &cf.sp); | | 169 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 1, &cf.cf_sp); |
170 | | | 170 | |
171 | read_memory(cf.sp, (gdb_byte *)&cf, sizeof(cf)); | | 171 | read_memory(cf.cf_sp, (gdb_byte *)&cf, sizeof(cf)); |
172 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &cf.lr); | | 172 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &cf.cf_lr); |
173 | regcache_raw_supply (regcache, PC_REGNUM, &cf.lr); | | 173 | regcache_raw_supply (regcache, PC_REGNUM, &cf.cf_lr); |
174 | | | 174 | |
175 | return 1; | | 175 | return 1; |
176 | } | | 176 | } |
177 | | | 177 | |
178 | /* Provide a prototype to silence -Wmissing-prototypes. */ | | 178 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
179 | void _initialize_ppcnbsd_nat (void); | | 179 | void _initialize_ppcnbsd_nat (void); |
180 | | | 180 | |
181 | void | | 181 | void |
182 | _initialize_ppcnbsd_nat (void) | | 182 | _initialize_ppcnbsd_nat (void) |
183 | { | | 183 | { |
184 | struct target_ops *t; | | 184 | struct target_ops *t; |
185 | | | 185 | |
186 | /* Support debugging kernel virtual memory images. */ | | 186 | /* Support debugging kernel virtual memory images. */ |
187 | bsd_kvm_add_target (ppcnbsd_supply_pcb); | | 187 | bsd_kvm_add_target (ppcnbsd_supply_pcb); |
188 | | | 188 | |
189 | /* Add in local overrides. */ | | 189 | /* Add in local overrides. */ |
190 | t = inf_ptrace_target (); | | 190 | t = inf_ptrace_target (); |
191 | t->to_fetch_registers = ppcnbsd_fetch_inferior_registers; | | 191 | t->to_fetch_registers = ppcnbsd_fetch_inferior_registers; |
192 | t->to_store_registers = ppcnbsd_store_inferior_registers; | | 192 | t->to_store_registers = ppcnbsd_store_inferior_registers; |
193 | t->to_pid_to_exec_file = nbsd_pid_to_exec_file; | | 193 | t->to_pid_to_exec_file = nbsd_pid_to_exec_file; |
194 | add_target (t); | | 194 | add_target (t); |
195 | } | | 195 | } |