1 /* Host-dependent code for Apollo-68ksfor GDB, the GNU debugger.
2 Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 #if defined (GDB_TARGET_IS_SUN3)
27 /* All of this stuff is only relevant if both host and target are sun3. */
29 fetch_inferior_registers ()
31 struct regs inferior_registers;
33 struct fp_status inferior_fp_registers;
35 extern char registers[];
39 ptrace (PTRACE_GETREGS, inferior_pid,
40 (PTRACE_ARG3_TYPE) &inferior_registers, 0);
42 ptrace (PTRACE_GETFPREGS, inferior_pid,
43 (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
46 bcopy (&inferior_registers, registers, 16 * 4);
48 bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
49 sizeof inferior_fp_registers.fps_regs);
51 *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
52 *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
54 bcopy (&inferior_fp_registers.fps_control,
55 ®isters[REGISTER_BYTE (FPC_REGNUM)],
56 sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
60 /* Store our register values back into the inferior.
61 If REGNO is -1, do this for all registers.
62 Otherwise, REGNO specifies which register (so we can save time). */
65 store_inferior_registers (regno)
68 struct regs inferior_registers;
70 struct fp_status inferior_fp_registers;
72 extern char registers[];
74 bcopy (registers, &inferior_registers, 16 * 4);
76 bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
77 sizeof inferior_fp_registers.fps_regs);
79 inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)];
80 inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)];
83 bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
84 &inferior_fp_registers.fps_control,
85 sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
88 ptrace (PTRACE_SETREGS, inferior_pid,
89 (PTRACE_ARG3_TYPE) &inferior_registers, 0);
91 ptrace (PTRACE_SETFPREGS, inferior_pid,
92 (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
96 /* Machine-dependent code for pulling registers out of a Sun-3 core file. */
99 fetch_core_registers (core_reg_sect, core_reg_size, which)
101 unsigned core_reg_size;
104 extern char registers[];
105 struct regs *regs = (struct regs *) core_reg_sect;
108 if (core_reg_size < sizeof (struct regs))
109 error ("Can't find registers in core file");
111 bcopy ((char *)regs, registers, 16 * 4);
112 supply_register (PS_REGNUM, ®s->r_ps);
113 supply_register (PC_REGNUM, ®s->r_pc);
115 } else if (which == 2) {
117 #define fpustruct ((struct fpu *) core_reg_sect)
119 if (core_reg_size >= sizeof (struct fpu))
122 bcopy (fpustruct->f_fpstatus.fps_regs,
123 ®isters[REGISTER_BYTE (FP0_REGNUM)],
124 sizeof fpustruct->f_fpstatus.fps_regs);
125 bcopy (&fpustruct->f_fpstatus.fps_control,
126 ®isters[REGISTER_BYTE (FPC_REGNUM)],
127 sizeof fpustruct->f_fpstatus -
128 sizeof fpustruct->f_fpstatus.fps_regs);
132 fprintf (stderr, "Couldn't read float regs from core file\n");
135 #else /* Not sun3 target. */
136 /* These functions shouldn't be called when we're cross-debugging. */
139 fetch_inferior_registers ()
145 store_inferior_registers (regno)
152 fetch_core_registers (core_reg_sect, core_reg_size, which)
154 unsigned core_reg_size;
158 #endif /* Not sun3 target. */