1 /* HP/UX native interface for HP 300's, for GDB when running under Unix.
2 Copyright 1986, 1987, 1989, 1991, 1992, 1993 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. */
24 /* Defining this means some system include files define some extra stuff. */
26 #include <sys/param.h>
30 #include <sys/ioctl.h>
33 #include <sys/ptrace.h>
42 #define INFERIOR_AR0(u) \
44 (PT_RUAREA, inferior_pid, \
45 (PTRACE_ARG3_TYPE) ((char *) &u.u_ar0 - (char *) &u), 0)) \
49 fetch_inferior_register (regno
, regaddr
)
51 register unsigned int regaddr
;
53 #ifndef HPUX_VERSION_5
54 if (regno
== PS_REGNUM
)
56 union { int i
; short s
[2]; } ps_val
;
59 ps_val
.i
= (ptrace (PT_RUAREA
, inferior_pid
, (PTRACE_ARG3_TYPE
) regaddr
,
62 supply_register (regno
, ®val
);
65 #endif /* not HPUX_VERSION_5 */
67 char buf
[MAX_REGISTER_RAW_SIZE
];
70 for (i
= 0; i
< REGISTER_RAW_SIZE (regno
); i
+= sizeof (int))
72 *(int *) &buf
[i
] = ptrace (PT_RUAREA
, inferior_pid
,
73 (PTRACE_ARG3_TYPE
) regaddr
, 0);
74 regaddr
+= sizeof (int);
76 supply_register (regno
, buf
);
82 store_inferior_register_1 (regno
, regaddr
, value
)
88 ptrace (PT_WUAREA
, inferior_pid
, (PTRACE_ARG3_TYPE
) regaddr
, value
);
90 /* HP-UX randomly sets errno to non-zero for regno == 25.
91 However, the value is correctly written, so ignore errno. */
96 sprintf (string_buf
, "writing register number %d", regno
);
97 perror_with_name (string_buf
);
104 store_inferior_register (regno
, regaddr
)
106 register unsigned int regaddr
;
108 #ifndef HPUX_VERSION_5
109 if (regno
== PS_REGNUM
)
111 union { int i
; short s
[2]; } ps_val
;
113 ps_val
.i
= (ptrace (PT_RUAREA
, inferior_pid
, (PTRACE_ARG3_TYPE
) regaddr
,
115 ps_val
.s
[0] = (read_register (regno
));
116 store_inferior_register_1 (regno
, regaddr
, ps_val
.i
);
119 #endif /* not HPUX_VERSION_5 */
121 char buf
[MAX_REGISTER_RAW_SIZE
];
123 extern char registers
[];
125 for (i
= 0; i
< REGISTER_RAW_SIZE (regno
); i
+= sizeof (int))
127 store_inferior_register_1
129 (*(int *) ®isters
[(REGISTER_BYTE (regno
)) + i
]));
130 regaddr
+= sizeof (int);
137 fetch_inferior_registers (regno
)
141 register unsigned int ar0_offset
;
143 ar0_offset
= (INFERIOR_AR0 (u
));
146 for (regno
= 0; (regno
< FP0_REGNUM
); regno
++)
147 fetch_inferior_register (regno
, (REGISTER_ADDR (ar0_offset
, regno
)));
148 for (; (regno
< NUM_REGS
); regno
++)
149 fetch_inferior_register (regno
, (FP_REGISTER_ADDR (u
, regno
)));
152 fetch_inferior_register (regno
,
154 ? REGISTER_ADDR (ar0_offset
, regno
)
155 : FP_REGISTER_ADDR (u
, regno
)));
158 /* Store our register values back into the inferior.
159 If REGNO is -1, do this for all registers.
160 Otherwise, REGNO specifies which register (so we can save time). */
163 store_inferior_registers (regno
)
167 register unsigned int ar0_offset
;
168 extern char registers
[];
170 if (regno
>= FP0_REGNUM
)
172 store_inferior_register (regno
, (FP_REGISTER_ADDR (u
, regno
)));
176 ar0_offset
= (INFERIOR_AR0 (u
));
179 store_inferior_register (regno
, (REGISTER_ADDR (ar0_offset
, regno
)));
183 for (regno
= 0; (regno
< FP0_REGNUM
); regno
++)
184 store_inferior_register (regno
, (REGISTER_ADDR (ar0_offset
, regno
)));
185 for (; (regno
< NUM_REGS
); regno
++)
186 store_inferior_register (regno
, (FP_REGISTER_ADDR (u
, regno
)));
191 /* Take the register values out of a core file and store
192 them where `read_register' will find them. */
194 #ifdef HPUX_VERSION_5
195 #define e_PS e_regs[PS]
196 #define e_PC e_regs[PC]
197 #endif /* HPUX_VERSION_5 */
200 fetch_core_registers (core_reg_sect
, core_reg_size
, which
, reg_addr
)
204 unsigned int reg_addr
; /* Unused in this version */
208 struct exception_stack
*pes
= (struct exception_stack
*) core_reg_sect
;
214 ((char *) &es
.e_offset
- (char *) &es
.e_regs
[R0
]))
215 error ("Not enough registers in core file");
216 for (regno
= 0; (regno
< PS_REGNUM
); regno
++)
217 supply_register (regno
, &es
.e_regs
[regno
+ R0
]);
219 supply_register (regno
++, &val
);
220 supply_register (regno
++, &es
.e_PC
);
222 } else if (which
== 2) {
224 /* FIXME: This may not work if the float regs and control regs are
226 for (regno
= FP0_REGNUM
, buf
= core_reg_sect
;
228 buf
+= REGISTER_RAW_SIZE (regno
), regno
++)
230 supply_register (regno
, buf
);