1 /* Native-dependent code for modern VAX BSD's.
3 Copyright 2004 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 #include <sys/types.h>
27 #include <sys/ptrace.h>
28 #include <machine/reg.h>
32 /* Supply the general-purpose registers stored in GREGS to REGCACHE. */
35 vaxbsd_supply_gregset (struct regcache
*regcache
, const void *gregs
)
37 const char *regs
= gregs
;
40 for (regnum
= 0; regnum
< VAX_NUM_REGS
; regnum
++)
41 regcache_raw_supply (regcache
, regnum
, regs
+ regnum
* 4);
44 /* Collect the general-purpose registers from REGCACHE and store them
48 vaxbsd_collect_gregset (const struct regcache
*regcache
,
49 void *gregs
, int regnum
)
54 for (i
= 0; i
<= VAX_NUM_REGS
; i
++)
56 if (regnum
== -1 || regnum
== i
)
57 regcache_raw_collect (regcache
, i
, regs
+ i
* 4);
62 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
66 fetch_inferior_registers (int regnum
)
70 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
71 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
72 perror_with_name ("Couldn't get registers");
74 vaxbsd_supply_gregset (current_regcache
, ®s
);
77 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
78 this for all registers. */
81 store_inferior_registers (int regnum
)
85 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
86 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
87 perror_with_name ("Couldn't get registers");
89 vaxbsd_collect_gregset (current_regcache
, ®s
, regnum
);
91 if (ptrace (PT_SETREGS
, PIDGET (inferior_ptid
),
92 (PTRACE_TYPE_ARG3
) ®s
, 0) == -1)
93 perror_with_name ("Couldn't write registers");
97 /* Support for debugging kernel virtual memory images. */
99 #include <sys/types.h>
100 #include <machine/pcb.h>
105 vaxbsd_supply_pcb (struct regcache
*regcache
, struct pcb
*pcb
)
109 /* The following is true for OpenBSD 3.5:
111 The pcb contains the register state at the context switch inside
114 /* The stack pointer shouldn't be zero. */
118 for (regnum
= VAX_R0_REGNUM
; regnum
< VAX_AP_REGNUM
; regnum
++)
119 regcache_raw_supply (regcache
, regnum
, &pcb
->R
[regnum
- VAX_R0_REGNUM
]);
120 regcache_raw_supply (regcache
, VAX_AP_REGNUM
, &pcb
->AP
);
121 regcache_raw_supply (regcache
, VAX_FP_REGNUM
, &pcb
->FP
);
122 regcache_raw_supply (regcache
, VAX_SP_REGNUM
, &pcb
->KSP
);
123 regcache_raw_supply (regcache
, VAX_PC_REGNUM
, &pcb
->PC
);
124 regcache_raw_supply (regcache
, VAX_PS_REGNUM
, &pcb
->PSL
);
130 /* Provide a prototype to silence -Wmissing-prototypes. */
131 void _initialize_vaxbsd_nat (void);
134 _initialize_vaxbsd_nat (void)
136 /* Support debugging kernel virtual memory images. */
137 bsd_kvm_add_target (vaxbsd_supply_pcb
);
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