1 /* Low level Alpha GNU/Linux interface, for GDB when running native.
2 Copyright (C) 2005, 2006, 2007 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., 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA. */
24 #include "linux-nat.h"
26 #include "alpha-tdep.h"
28 #include <sys/ptrace.h>
29 #include <alpha/ptrace.h>
31 #include <sys/procfs.h>
34 /* The address of UNIQUE for ptrace. */
35 #define ALPHA_UNIQUE_PTRACE_ADDR 65
39 * See the comment in m68k-tdep.c regarding the utility of these functions.
43 supply_gregset (gdb_gregset_t
*gregsetp
)
45 long *regp
= (long *)gregsetp
;
47 /* PC is in slot 32, UNIQUE is in slot 33. */
48 alpha_supply_int_regs (current_regcache
, -1, regp
, regp
+ 31, regp
+ 32);
52 fill_gregset (gdb_gregset_t
*gregsetp
, int regno
)
54 long *regp
= (long *)gregsetp
;
56 /* PC is in slot 32, UNIQUE is in slot 33. */
57 alpha_fill_int_regs (current_regcache
, regno
, regp
, regp
+ 31, regp
+ 32);
61 * Now we do the same thing for floating-point registers.
62 * Again, see the comments in m68k-tdep.c.
66 supply_fpregset (gdb_fpregset_t
*fpregsetp
)
68 long *regp
= (long *)fpregsetp
;
70 /* FPCR is in slot 32. */
71 alpha_supply_fp_regs (current_regcache
, -1, regp
, regp
+ 31);
75 fill_fpregset (gdb_fpregset_t
*fpregsetp
, int regno
)
77 long *regp
= (long *)fpregsetp
;
79 /* FPCR is in slot 32. */
80 alpha_fill_fp_regs (current_regcache
, regno
, regp
, regp
+ 31);
85 alpha_linux_register_u_offset (int regno
)
87 if (regno
== PC_REGNUM
)
89 if (regno
== ALPHA_UNIQUE_REGNUM
)
90 return ALPHA_UNIQUE_PTRACE_ADDR
;
91 if (regno
< FP0_REGNUM
)
92 return GPR_BASE
+ regno
;
94 return FPR_BASE
+ regno
- FP0_REGNUM
;
97 void _initialialize_alpha_linux_nat (void);
100 _initialize_alpha_linux_nat (void)
102 linux_nat_add_target (linux_trad_target (alpha_linux_register_u_offset
));