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- /* 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 "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. */
-