diff options
Diffstat (limited to 'gdb/a68v-nat.c')
| -rw-r--r-- | gdb/a68v-nat.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/gdb/a68v-nat.c b/gdb/a68v-nat.c new file mode 100644 index 0000000..95bb3c8 --- /dev/null +++ b/gdb/a68v-nat.c @@ -0,0 +1,123 @@ +/* Host-dependent code for Apollo-68ks for GDB, the GNU debugger. + Copyright 1986, 1987, 1989, 1991 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 "defs.h" +#include "inferior.h" + +#ifndef _ISP__M68K +#define _ISP__M68K 1 +#endif + +#include <ptrace.h> + +extern int errno; + +void +fetch_inferior_registers (ignored) + int ignored; +{ + struct ptrace_$data_regs_m68k inferior_registers; + struct ptrace_$floating_regs_m68k inferior_fp_registers; + struct ptrace_$control_regs_m68k inferior_control_registers; + extern char registers[]; + + ptrace_$init_control(&inferior_control_registers); + inferior_fp_registers.size = sizeof(inferior_fp_registers); + + registers_fetched (); + + ptrace (PTRACE_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_registers, + ptrace_$data_set, + (PTRACE_ARG3_TYPE) &inferior_registers, + ptrace_$data_set); + + ptrace (PTRACE_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k); + + ptrace (PTRACE_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k); + + bcopy (&inferior_registers, registers, 16 * 4); + bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], + sizeof inferior_fp_registers.regs); + *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_control_registers.sr; + *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_control_registers.pc; +} + +/* Store our register values back into the inferior. + If REGNO is -1, do this for all registers. + Otherwise, REGNO specifies which register (so we can save time). */ + +void +store_inferior_registers (regno) + int regno; +{ + struct ptrace_$data_regs_m68k inferior_registers; + struct ptrace_$floating_regs_m68k inferior_fp_registers; + struct ptrace_$control_regs_m68k inferior_control_registers; + extern char registers[]; + + ptrace_$init_control(&inferior_control_registers); + inferior_fp_registers.size = sizeof(inferior_fp_registers); + + ptrace (PTRACE_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k); + + ptrace (PTRACE_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k); + + bcopy (registers, &inferior_registers, sizeof(inferior_registers)); + + bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.regs, + sizeof inferior_fp_registers.regs); + + inferior_control_registers.sr = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)]; + inferior_control_registers.pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)]; + + ptrace (PTRACE_SETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_registers, + ptrace_$data_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_registers, + ptrace_$data_set_m68k); + + ptrace (PTRACE_SETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_fp_registers, + ptrace_$floating_set_m68k); + + ptrace (PTRACE_SETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k, + (PTRACE_ARG3_TYPE) &inferior_control_registers, + ptrace_$control_set_m68k); +} |