1 /* Native-dependent code for BSD Unix running on ARM's, for GDB.
3 Copyright (C) 1988-2016 Free Software Foundation, Inc.
5 This file is part of GDB.
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 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include <sys/types.h>
26 #include <sys/ptrace.h>
27 #include <machine/reg.h>
28 #include <machine/frame.h>
31 #include "inf-ptrace.h"
33 extern int arm_apcs_32;
36 arm_supply_gregset (struct regcache *regcache, struct reg *gregset)
41 /* Integer registers. */
42 for (regno = ARM_A1_REGNUM; regno < ARM_SP_REGNUM; regno++)
43 regcache_raw_supply (regcache, regno, (char *) &gregset->r[regno]);
45 regcache_raw_supply (regcache, ARM_SP_REGNUM,
46 (char *) &gregset->r_sp);
47 regcache_raw_supply (regcache, ARM_LR_REGNUM,
48 (char *) &gregset->r_lr);
49 /* This is ok: we're running native... */
50 r_pc = gdbarch_addr_bits_remove (get_regcache_arch (regcache), gregset->r_pc);
51 regcache_raw_supply (regcache, ARM_PC_REGNUM, (char *) &r_pc);
54 regcache_raw_supply (regcache, ARM_PS_REGNUM,
55 (char *) &gregset->r_cpsr);
57 regcache_raw_supply (regcache, ARM_PS_REGNUM,
58 (char *) &gregset->r_pc);
62 arm_supply_fparegset (struct regcache *regcache, struct fpreg *fparegset)
66 for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
67 regcache_raw_supply (regcache, regno,
68 (char *) &fparegset->fpr[regno - ARM_F0_REGNUM]);
70 regcache_raw_supply (regcache, ARM_FPS_REGNUM,
71 (char *) &fparegset->fpr_fpsr);
75 fetch_register (struct regcache *regcache, int regno)
77 struct reg inferior_registers;
80 ret = ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
81 (PTRACE_TYPE_ARG3) &inferior_registers, 0);
85 warning (_("unable to fetch general register"));
92 regcache_raw_supply (regcache, ARM_SP_REGNUM,
93 (char *) &inferior_registers.r_sp);
97 regcache_raw_supply (regcache, ARM_LR_REGNUM,
98 (char *) &inferior_registers.r_lr);
102 /* This is ok: we're running native... */
103 inferior_registers.r_pc = gdbarch_addr_bits_remove
104 (get_regcache_arch (regcache),
105 inferior_registers.r_pc);
106 regcache_raw_supply (regcache, ARM_PC_REGNUM,
107 (char *) &inferior_registers.r_pc);
112 regcache_raw_supply (regcache, ARM_PS_REGNUM,
113 (char *) &inferior_registers.r_cpsr);
115 regcache_raw_supply (regcache, ARM_PS_REGNUM,
116 (char *) &inferior_registers.r_pc);
120 regcache_raw_supply (regcache, regno,
121 (char *) &inferior_registers.r[regno]);
127 fetch_regs (struct regcache *regcache)
129 struct reg inferior_registers;
133 ret = ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
134 (PTRACE_TYPE_ARG3) &inferior_registers, 0);
138 warning (_("unable to fetch general registers"));
142 arm_supply_gregset (regcache, &inferior_registers);
146 fetch_fp_register (struct regcache *regcache, int regno)
148 struct fpreg inferior_fp_registers;
151 ret = ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
152 (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
156 warning (_("unable to fetch floating-point register"));
163 regcache_raw_supply (regcache, ARM_FPS_REGNUM,
164 (char *) &inferior_fp_registers.fpr_fpsr);
168 regcache_raw_supply (regcache, regno,
169 (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
175 fetch_fp_regs (struct regcache *regcache)
177 struct fpreg inferior_fp_registers;
181 ret = ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
182 (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
186 warning (_("unable to fetch general registers"));
190 arm_supply_fparegset (regcache, &inferior_fp_registers);
194 armnbsd_fetch_registers (struct target_ops *ops,
195 struct regcache *regcache, int regno)
199 if (regno < ARM_F0_REGNUM || regno > ARM_FPS_REGNUM)
200 fetch_register (regcache, regno);
202 fetch_fp_register (regcache, regno);
206 fetch_regs (regcache);
207 fetch_fp_regs (regcache);
213 store_register (const struct regcache *regcache, int regno)
215 struct gdbarch *gdbarch = get_regcache_arch (regcache);
216 struct reg inferior_registers;
219 ret = ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
220 (PTRACE_TYPE_ARG3) &inferior_registers, 0);
224 warning (_("unable to fetch general registers"));
231 regcache_raw_collect (regcache, ARM_SP_REGNUM,
232 (char *) &inferior_registers.r_sp);
236 regcache_raw_collect (regcache, ARM_LR_REGNUM,
237 (char *) &inferior_registers.r_lr);
242 regcache_raw_collect (regcache, ARM_PC_REGNUM,
243 (char *) &inferior_registers.r_pc);
248 regcache_raw_collect (regcache, ARM_PC_REGNUM,
251 pc_val = gdbarch_addr_bits_remove (gdbarch, pc_val);
252 inferior_registers.r_pc ^= gdbarch_addr_bits_remove
253 (gdbarch, inferior_registers.r_pc);
254 inferior_registers.r_pc |= pc_val;
260 regcache_raw_collect (regcache, ARM_PS_REGNUM,
261 (char *) &inferior_registers.r_cpsr);
266 regcache_raw_collect (regcache, ARM_PS_REGNUM,
269 psr_val ^= gdbarch_addr_bits_remove (gdbarch, psr_val);
270 inferior_registers.r_pc = gdbarch_addr_bits_remove
271 (gdbarch, inferior_registers.r_pc);
272 inferior_registers.r_pc |= psr_val;
277 regcache_raw_collect (regcache, regno,
278 (char *) &inferior_registers.r[regno]);
282 ret = ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
283 (PTRACE_TYPE_ARG3) &inferior_registers, 0);
286 warning (_("unable to write register %d to inferior"), regno);
290 store_regs (const struct regcache *regcache)
292 struct gdbarch *gdbarch = get_regcache_arch (regcache);
293 struct reg inferior_registers;
298 for (regno = ARM_A1_REGNUM; regno < ARM_SP_REGNUM; regno++)
299 regcache_raw_collect (regcache, regno,
300 (char *) &inferior_registers.r[regno]);
302 regcache_raw_collect (regcache, ARM_SP_REGNUM,
303 (char *) &inferior_registers.r_sp);
304 regcache_raw_collect (regcache, ARM_LR_REGNUM,
305 (char *) &inferior_registers.r_lr);
309 regcache_raw_collect (regcache, ARM_PC_REGNUM,
310 (char *) &inferior_registers.r_pc);
311 regcache_raw_collect (regcache, ARM_PS_REGNUM,
312 (char *) &inferior_registers.r_cpsr);
319 regcache_raw_collect (regcache, ARM_PC_REGNUM,
321 regcache_raw_collect (regcache, ARM_PS_REGNUM,
324 pc_val = gdbarch_addr_bits_remove (gdbarch, pc_val);
325 psr_val ^= gdbarch_addr_bits_remove (gdbarch, psr_val);
327 inferior_registers.r_pc = pc_val | psr_val;
330 ret = ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
331 (PTRACE_TYPE_ARG3) &inferior_registers, 0);
334 warning (_("unable to store general registers"));
338 store_fp_register (const struct regcache *regcache, int regno)
340 struct fpreg inferior_fp_registers;
343 ret = ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
344 (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
348 warning (_("unable to fetch floating-point registers"));
355 regcache_raw_collect (regcache, ARM_FPS_REGNUM,
356 (char *) &inferior_fp_registers.fpr_fpsr);
360 regcache_raw_collect (regcache, regno,
361 (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
365 ret = ptrace (PT_SETFPREGS, ptid_get_pid (inferior_ptid),
366 (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
369 warning (_("unable to write register %d to inferior"), regno);
373 store_fp_regs (const struct regcache *regcache)
375 struct fpreg inferior_fp_registers;
380 for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
381 regcache_raw_collect (regcache, regno,
382 (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
384 regcache_raw_collect (regcache, ARM_FPS_REGNUM,
385 (char *) &inferior_fp_registers.fpr_fpsr);
387 ret = ptrace (PT_SETFPREGS, ptid_get_pid (inferior_ptid),
388 (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
391 warning (_("unable to store floating-point registers"));
395 armnbsd_store_registers (struct target_ops *ops,
396 struct regcache *regcache, int regno)
400 if (regno < ARM_F0_REGNUM || regno > ARM_FPS_REGNUM)
401 store_register (regcache, regno);
403 store_fp_register (regcache, regno);
407 store_regs (regcache);
408 store_fp_regs (regcache);
419 fetch_core_registers (struct regcache *regcache,
420 char *core_reg_sect, unsigned core_reg_size,
421 int which, CORE_ADDR ignore)
423 struct md_core *core_reg = (struct md_core *) core_reg_sect;
427 arm_supply_gregset (regcache, &core_reg->intreg);
428 arm_supply_fparegset (regcache, &core_reg->freg);
432 fetch_elfcore_registers (struct regcache *regcache,
433 char *core_reg_sect, unsigned core_reg_size,
434 int which, CORE_ADDR ignore)
437 struct fpreg fparegset;
441 case 0: /* Integer registers. */
442 if (core_reg_size != sizeof (struct reg))
443 warning (_("wrong size of register set in core file"));
446 /* The memcpy may be unnecessary, but we can't really be sure
447 of the alignment of the data in the core file. */
448 memcpy (&gregset, core_reg_sect, sizeof (gregset));
449 arm_supply_gregset (regcache, &gregset);
454 if (core_reg_size != sizeof (struct fpreg))
455 warning (_("wrong size of FPA register set in core file"));
458 /* The memcpy may be unnecessary, but we can't really be sure
459 of the alignment of the data in the core file. */
460 memcpy (&fparegset, core_reg_sect, sizeof (fparegset));
461 arm_supply_fparegset (regcache, &fparegset);
466 /* Don't know what kind of register request this is; just ignore it. */
471 static struct core_fns arm_netbsd_core_fns =
473 bfd_target_unknown_flavour, /* core_flovour. */
474 default_check_format, /* check_format. */
475 default_core_sniffer, /* core_sniffer. */
476 fetch_core_registers, /* core_read_registers. */
480 static struct core_fns arm_netbsd_elfcore_fns =
482 bfd_target_elf_flavour, /* core_flovour. */
483 default_check_format, /* check_format. */
484 default_core_sniffer, /* core_sniffer. */
485 fetch_elfcore_registers, /* core_read_registers. */
490 _initialize_arm_netbsd_nat (void)
492 struct target_ops *t;
494 t = inf_ptrace_target ();
495 t->to_fetch_registers = armnbsd_fetch_registers;
496 t->to_store_registers = armnbsd_store_registers;
499 deprecated_add_core_fns (&arm_netbsd_core_fns);
500 deprecated_add_core_fns (&arm_netbsd_elfcore_fns);