1 /* GNU/Linux/TILE-Gx specific low level interface, GDBserver.
3 Copyright (C) 2012 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 3 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, see <http://www.gnu.org/licenses/>. */
21 #include "linux-low.h"
23 #include <sys/ptrace.h>
25 /* Defined in auto-generated file reg-tile.c. */
26 void init_registers_tile (void);
28 #define tile_num_regs 65
30 static int tile_regmap
[] =
32 0, 1, 2, 3, 4, 5, 6, 7,
33 8, 9, 10, 11, 12, 13, 14, 15,
34 16, 17, 18, 19, 20, 21, 22, 23,
35 24, 25, 26, 27, 28, 29, 30, 31,
36 32, 33, 34, 35, 36, 37, 38, 39,
37 40, 41, 42, 43, 44, 45, 46, 47,
38 48, 49, 50, 51, 52, 53, 54, 55,
39 -1, -1, -1, -1, -1, -1, -1, -1,
44 tile_cannot_fetch_register (int regno
)
46 if (regno
>= 0 && regno
< 56)
55 tile_cannot_store_register (int regno
)
57 if (regno
>= 0 && regno
< 56)
66 tile_get_pc (struct regcache
*regcache
)
70 collect_register_by_name (regcache
, "pc", &pc
);
75 tile_set_pc (struct regcache
*regcache
, CORE_ADDR pc
)
77 unsigned long newpc
= pc
;
79 supply_register_by_name (regcache
, "pc", &newpc
);
82 static uint64_t tile_breakpoint
= 0x400b3cae70166000ULL
;
83 #define tile_breakpoint_len 8
86 tile_breakpoint_at (CORE_ADDR where
)
90 (*the_target
->read_memory
) (where
, (unsigned char *) &insn
, 8);
91 if (insn
== tile_breakpoint
)
94 /* If necessary, recognize more trap instructions here. GDB only uses the
100 tile_fill_gregset (struct regcache
*regcache
, void *buf
)
104 for (i
= 0; i
< tile_num_regs
; i
++)
105 if (tile_regmap
[i
] != -1)
106 collect_register (regcache
, i
, ((unsigned int *) buf
) + tile_regmap
[i
]);
110 tile_store_gregset (struct regcache
*regcache
, const void *buf
)
114 for (i
= 0; i
< tile_num_regs
; i
++)
115 if (tile_regmap
[i
] != -1)
116 supply_register (regcache
, i
, ((unsigned long *) buf
) + tile_regmap
[i
]);
119 struct regset_info target_regsets
[] =
121 { PTRACE_GETREGS
, PTRACE_SETREGS
, 0, tile_num_regs
* 4,
122 GENERAL_REGS
, tile_fill_gregset
, tile_store_gregset
},
123 { 0, 0, 0, -1, -1, NULL
, NULL
}
126 struct linux_target_ops the_low_target
=
132 tile_cannot_fetch_register
,
133 tile_cannot_store_register
,
137 (const unsigned char *) &tile_breakpoint
,