| /* Native-dependent code for PowerPC's running NetBSD, for GDB. |
| Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001 |
| Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <sys/types.h> |
| #include <sys/ptrace.h> |
| #include <machine/reg.h> |
| #include <machine/frame.h> |
| |
| #include "defs.h" |
| #include "inferior.h" |
| #include "gdbcore.h" |
| #include "ppc-tdep.h" |
| #include "regcache.h" |
| |
| #define RF(dst, src) \ |
| memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src)) |
| |
| #define RS(src, dst) \ |
| memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst)) |
| |
| void |
| fetch_inferior_registers (int regno) |
| { |
| struct reg inferior_registers; |
| #ifdef PT_GETFPREGS |
| struct fpreg inferior_fp_registers; |
| #endif |
| int i; |
| |
| ptrace (PT_GETREGS, inferior_pid, |
| (PTRACE_ARG3_TYPE) & inferior_registers, 0); |
| for (i = 0; i < 32; i++) |
| RF (i, inferior_registers.fixreg[i]); |
| RF (PPC_LR_REGNUM, inferior_registers.lr); |
| RF (PPC_CR_REGNUM, inferior_registers.cr); |
| RF (PPC_XER_REGNUM, inferior_registers.xer); |
| RF (PPC_CTR_REGNUM, inferior_registers.ctr); |
| RF (PC_REGNUM, inferior_registers.pc); |
| |
| #ifdef PT_GETFPREGS |
| ptrace (PT_GETFPREGS, inferior_pid, |
| (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); |
| for (i = 0; i < 32; i++) |
| RF (FP0_REGNUM + i, inferior_fp_registers.fpreg[i]); |
| #endif |
| |
| registers_fetched (); |
| } |
| |
| void |
| store_inferior_registers (int regno) |
| { |
| struct reg inferior_registers; |
| #ifdef PT_SETFPREGS |
| struct fpreg inferior_fp_registers; |
| #endif |
| int i; |
| |
| for (i = 0; i < 32; i++) |
| RS (i, inferior_registers.fixreg[i]); |
| RS (PPC_LR_REGNUM, inferior_registers.lr); |
| RS (PPC_CR_REGNUM, inferior_registers.cr); |
| RS (PPC_XER_REGNUM, inferior_registers.xer); |
| RS (PPC_CTR_REGNUM, inferior_registers.ctr); |
| RS (PC_REGNUM, inferior_registers.pc); |
| |
| ptrace (PT_SETREGS, inferior_pid, |
| (PTRACE_ARG3_TYPE) & inferior_registers, 0); |
| |
| #ifdef PT_SETFPREGS |
| for (i = 0; i < 32; i++) |
| RS (FP0_REGNUM + i, inferior_fp_registers.fpreg[i]); |
| ptrace (PT_SETFPREGS, inferior_pid, |
| (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); |
| #endif |
| } |
| |
| struct md_core |
| { |
| struct reg intreg; |
| #ifdef PT_GETFPREGS |
| struct fpreg freg; |
| #endif |
| }; |
| |
| void |
| fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
| CORE_ADDR ignore) |
| { |
| struct md_core *core_reg = (struct md_core *) core_reg_sect; |
| int i; |
| |
| /* Integer registers */ |
| for (i = 0; i < 32; i++) |
| RF (i, core_reg->intreg.fixreg[i]); |
| RF (PPC_LR_REGNUM, core_reg->intreg.lr); |
| RF (PPC_CR_REGNUM, core_reg->intreg.cr); |
| RF (PPC_XER_REGNUM, core_reg->intreg.xer); |
| RF (PPC_CTR_REGNUM, core_reg->intreg.ctr); |
| RF (PC_REGNUM, core_reg->intreg.pc); |
| |
| #ifdef PT_FPGETREGS |
| /* Floating point registers */ |
| for (i = 0; i < 32; i++) |
| RF (FP0_REGNUM + i, core_reg->freg.fpreg[i]); |
| #endif |
| |
| registers_fetched (); |
| } |
| |
| /* Register that we are able to handle ppcnbsd core file formats. |
| FIXME: is this really bfd_target_unknown_flavour? */ |
| |
| static struct core_fns ppcnbsd_core_fns = |
| { |
| bfd_target_unknown_flavour, /* core_flavour */ |
| default_check_format, /* check_format */ |
| default_core_sniffer, /* core_sniffer */ |
| fetch_core_registers, /* core_read_registers */ |
| NULL /* next */ |
| }; |
| |
| void |
| _initialize_ppcnbsd_nat (void) |
| { |
| add_core_fns (&ppcnbsd_core_fns); |
| } |