diff options
Diffstat (limited to 'gdb/a68v-xdep.c')
| -rw-r--r-- | gdb/a68v-xdep.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/gdb/a68v-xdep.c b/gdb/a68v-xdep.c new file mode 100644 index 0000000..e9cf597 --- /dev/null +++ b/gdb/a68v-xdep.c @@ -0,0 +1,153 @@ +/* Host-dependent code for Apollo-68ksfor 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <stdio.h> +#include "defs.h" +#include "inferior.h" +#include "gdbcore.h" + +extern int errno; + +#if defined (GDB_TARGET_IS_SUN3) +/* All of this stuff is only relevant if both host and target are sun3. */ +void +fetch_inferior_registers () +{ + struct regs inferior_registers; +#ifdef FP0_REGNUM + struct fp_status inferior_fp_registers; +#endif + extern char registers[]; + + registers_fetched (); + + ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers); +#ifdef FP0_REGNUM + ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers); +#endif + + bcopy (&inferior_registers, registers, 16 * 4); +#ifdef FP0_REGNUM + bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], + sizeof inferior_fp_registers.fps_regs); +#endif + *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; + *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; +#ifdef FP0_REGNUM + bcopy (&inferior_fp_registers.fps_control, + ®isters[REGISTER_BYTE (FPC_REGNUM)], + sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); +#endif +} + +/* 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). */ + +store_inferior_registers (regno) + int regno; +{ + struct regs inferior_registers; +#ifdef FP0_REGNUM + struct fp_status inferior_fp_registers; +#endif + extern char registers[]; + + bcopy (registers, &inferior_registers, 16 * 4); +#ifdef FP0_REGNUM + bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, + sizeof inferior_fp_registers.fps_regs); +#endif + inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)]; + inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)]; + +#ifdef FP0_REGNUM + bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)], + &inferior_fp_registers.fps_control, + sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); +#endif + + ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers); +#if FP0_REGNUM + ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers); +#endif +} + +/* Machine-dependent code for pulling registers out of a Sun-3 core file. */ + +void +fetch_core_registers (core_reg_sect, core_reg_size, which) + char *core_reg_sect; + unsigned core_reg_size; + int which; +{ + extern char registers[]; + struct regs *regs = (struct regs *) core_reg_sect; + + if (which == 0) { + if (core_reg_size < sizeof (struct regs)) + error ("Can't find registers in core file"); + + bcopy ((char *)regs, registers, 16 * 4); + supply_register (PS_REGNUM, ®s->r_ps); + supply_register (PC_REGNUM, ®s->r_pc); + + } else if (which == 2) { + +#define fpustruct ((struct fpu *) core_reg_sect) + + if (core_reg_size >= sizeof (struct fpu)) + { +#ifdef FP0_REGNUM + bcopy (fpustruct->f_fpstatus.fps_regs, + ®isters[REGISTER_BYTE (FP0_REGNUM)], + sizeof fpustruct->f_fpstatus.fps_regs); + bcopy (&fpustruct->f_fpstatus.fps_control, + ®isters[REGISTER_BYTE (FPC_REGNUM)], + sizeof fpustruct->f_fpstatus - + sizeof fpustruct->f_fpstatus.fps_regs); +#endif + } + else + fprintf (stderr, "Couldn't read float regs from core file\n"); + } +} +#else /* Not sun3 target. */ +/* These functions shouldn't be called when we're cross-debugging. */ + +void +fetch_inferior_registers () +{ +} + +/* ARGSUSED */ +store_inferior_registers (regno) + int regno; +{ +} + +/* ARGSUSED */ +void +fetch_core_registers (core_reg_sect, core_reg_size, which) + char *core_reg_sect; + unsigned core_reg_size; + int which; +{ +} +#endif /* Not sun3 target. */ |