1 /* GNU/Linux/m32r specific low level interface, for the remote server for GDB.
2 Copyright (C) 2005-2015 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 3 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, see <http://www.gnu.org/licenses/>. */
20 #include "linux-low.h"
26 /* Defined in auto-generated file reg-m32r.c. */
27 void init_registers_m32r (void);
28 extern const struct target_desc
*tdesc_m32r
;
30 #define m32r_num_regs 25
32 static int m32r_regmap
[] = {
34 PT_R0
, PT_R1
, PT_R2
, PT_R3
, PT_R4
, PT_R5
, PT_R6
, PT_R7
,
35 PT_R8
, PT_R9
, PT_R10
, PT_R11
, PT_R12
, PT_FP
, PT_LR
, PT_SPU
,
36 PT_PSW
, PT_CBR
, PT_SPI
, PT_SPU
, PT_BPC
, PT_PC
, PT_ACCL
, PT_ACCH
, PT_EVB
38 4 * 4, 4 * 5, 4 * 6, 4 * 7, 4 * 0, 4 * 1, 4 * 2, 4 * 8,
39 4 * 9, 4 * 10, 4 * 11, 4 * 12, 4 * 13, 4 * 24, 4 * 25, 4 * 23,
40 4 * 19, 4 * 31, 4 * 26, 4 * 23, 4 * 20, 4 * 30, 4 * 16, 4 * 15, 4 * 32
45 m32r_cannot_store_register (int regno
)
47 return (regno
>= m32r_num_regs
);
51 m32r_cannot_fetch_register (int regno
)
53 return (regno
>= m32r_num_regs
);
57 m32r_get_pc (struct regcache
*regcache
)
60 collect_register_by_name (regcache
, "pc", &pc
);
62 debug_printf ("stop pc is %08lx\n", pc
);
67 m32r_set_pc (struct regcache
*regcache
, CORE_ADDR pc
)
69 unsigned long newpc
= pc
;
70 supply_register_by_name (regcache
, "pc", &newpc
);
73 static const unsigned short m32r_breakpoint
= 0x10f1;
74 #define m32r_breakpoint_len 2
76 /* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
78 static const gdb_byte
*
79 m32r_sw_breakpoint_from_kind (int kind
, int *size
)
81 *size
= m32r_breakpoint_len
;
82 return (const gdb_byte
*) &m32r_breakpoint
;
86 m32r_breakpoint_at (CORE_ADDR where
)
90 (*the_target
->read_memory
) (where
, (unsigned char *) &insn
,
92 if (insn
== m32r_breakpoint
)
95 /* If necessary, recognize more trap instructions here. GDB only uses the
101 m32r_arch_setup (void)
103 current_process ()->tdesc
= tdesc_m32r
;
106 static struct usrregs_info m32r_usrregs_info
=
112 static struct regs_info regs_info
=
114 NULL
, /* regset_bitmap */
118 static const struct regs_info
*
119 m32r_regs_info (void)
124 struct linux_target_ops the_low_target
= {
127 m32r_cannot_fetch_register
,
128 m32r_cannot_store_register
,
129 NULL
, /* fetch_register */
132 NULL
, /* breakpoint_from_pc */
133 m32r_sw_breakpoint_from_kind
,
140 initialize_low_arch (void)
142 init_registers_m32r ();