1 /* Ravenscar SPARC target support.
2
3 Copyright (C) 2004-2024 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
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.
11
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.
16
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/>. */
19
20 #include "gdbcore.h"
21 #include "regcache.h"
22 #include "sparc-tdep.h"
23 #include "inferior.h"
24 #include "ravenscar-thread.h"
25 #include "sparc-ravenscar-thread.h"
26 #include "gdbarch.h"
27
28 /* Register offsets from a referenced address (exempli gratia the
29 Thread_Descriptor). The referenced address depends on the register
30 number. The Thread_Descriptor layout and the stack layout are documented
31 in the GNAT sources, in sparc-bb.h. */
32
33 static const int sparc_register_offsets[] =
34 {
35 /* G0 - G7 */
36 -1, 0x24, 0x28, 0x2C, 0x30, 0x34, 0x38, 0x3C,
37 /* O0 - O7 */
38 0x00, 0x04, 0x08, 0x0C, 0x10, 0x14, 0x18, 0x1C,
39 /* L0 - L7 */
40 0x00, 0x04, 0x08, 0x0C, 0x10, 0x14, 0x18, 0x1C,
41 /* I0 - I7 */
42 0x20, 0x24, 0x28, 0x2C, 0x30, 0x34, 0x38, 0x3C,
43 /* F0 - F31 */
44 0x50, 0x54, 0x58, 0x5C, 0x60, 0x64, 0x68, 0x6C,
45 0x70, 0x74, 0x78, 0x7C, 0x80, 0x84, 0x88, 0x8C,
46 0x90, 0x94, 0x99, 0x9C, 0xA0, 0xA4, 0xA8, 0xAC,
47 0xB0, 0xB4, 0xBB, 0xBC, 0xC0, 0xC4, 0xC8, 0xCC,
48 /* Y PSR WIM TBR PC NPC FPSR CPSR */
49 0x40, 0x20, 0x44, -1, 0x1C, -1, 0x4C, -1
50 };
51
52 static struct ravenscar_arch_ops sparc_ravenscar_ops (sparc_register_offsets,
53 SPARC_L0_REGNUM,
54 SPARC_I7_REGNUM);
55
56 /* Register ravenscar_arch_ops in GDBARCH. */
57
58 void
register_sparc_ravenscar_ops(struct gdbarch * gdbarch)59 register_sparc_ravenscar_ops (struct gdbarch *gdbarch)
60 {
61 set_gdbarch_ravenscar_ops (gdbarch, &sparc_ravenscar_ops);
62 }
63