| 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" |
| 29 | #include "ppc-tdep.h" |
| 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 |
| 38 | fetch_inferior_registers (int regno) |
| 39 | { |
| 40 | struct reg inferior_registers; |
| 41 | #ifdef PT_GETFPREGS |
| 42 | struct fpreg inferior_fp_registers; |
| 43 | #endif |
| 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]); |
| 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); |
| 54 | RF (PC_REGNUM, inferior_registers.pc); |
| 55 | |
| 56 | #ifdef PT_GETFPREGS |
| 57 | ptrace (PT_GETFPREGS, inferior_pid, |
| 58 | (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); |
| 59 | for (i = 0; i < 32; i++) |
| 60 | RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); |
| 61 | #endif |
| 62 | |
| 63 | registers_fetched (); |
| 64 | } |
| 65 | |
| 66 | void |
| 67 | store_inferior_registers (int regno) |
| 68 | { |
| 69 | struct reg inferior_registers; |
| 70 | #ifdef PT_SETFPREGS |
| 71 | struct fpreg inferior_fp_registers; |
| 72 | #endif |
| 73 | int i; |
| 74 | |
| 75 | for (i = 0; i < 32; i++) |
| 76 | RS (i, inferior_registers.fixreg[i]); |
| 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); |
| 81 | RS (PC_REGNUM, inferior_registers.pc); |
| 82 | |
| 83 | ptrace (PT_SETREGS, inferior_pid, |
| 84 | (PTRACE_ARG3_TYPE) & inferior_registers, 0); |
| 85 | |
| 86 | #ifdef PT_SETFPREGS |
| 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); |
| 91 | #endif |
| 92 | } |
| 93 | |
| 94 | struct md_core |
| 95 | { |
| 96 | struct reg intreg; |
| 97 | #ifdef PT_GETFPREGS |
| 98 | struct fpreg freg; |
| 99 | #endif |
| 100 | }; |
| 101 | |
| 102 | void |
| 103 | fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
| 104 | CORE_ADDR ignore) |
| 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]); |
| 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); |
| 116 | RF (PC_REGNUM, core_reg->intreg.pc); |
| 117 | |
| 118 | #ifdef PT_FPGETREGS |
| 119 | /* Floating point registers */ |
| 120 | for (i = 0; i < 32; i++) |
| 121 | RF (FP0_REGNUM + i, core_reg->freg.r_regs[i]); |
| 122 | #endif |
| 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 |
| 140 | _initialize_ppcnbsd_nat (void) |
| 141 | { |
| 142 | add_core_fns (&ppcnbsd_core_fns); |
| 143 | } |