159 lines
4.4 KiB
C
159 lines
4.4 KiB
C
/* 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,
|
|
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
|
|
#ifdef FP0_REGNUM
|
|
ptrace (PTRACE_GETFPREGS, inferior_pid,
|
|
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
|
|
#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). */
|
|
|
|
void
|
|
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,
|
|
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
|
|
#if FP0_REGNUM
|
|
ptrace (PTRACE_SETFPREGS, inferior_pid,
|
|
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
|
|
#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 */
|
|
void
|
|
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. */
|