1 /* Native-dependent code for GNU/Linux UltraSPARC.
2
3 Copyright (C) 2003-2024 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 "regcache.h"
21
22 #include <sys/procfs.h>
23 #include "gregset.h"
24
25 #include "sparc64-tdep.h"
26 #include "sparc-tdep.h"
27 #include "sparc-nat.h"
28 #include "inferior.h"
29 #include "target.h"
30 #include "linux-nat.h"
31
32 class sparc64_linux_nat_target final : public linux_nat_target
33 {
34 public:
35 /* Add our register access methods. */
fetch_registers(struct regcache * regcache,int regnum)36 void fetch_registers (struct regcache *regcache, int regnum) override
37 { sparc_fetch_inferior_registers (this, regcache, regnum); }
38
store_registers(struct regcache * regcache,int regnum)39 void store_registers (struct regcache *regcache, int regnum) override
40 { sparc_store_inferior_registers (this, regcache, regnum); }
41
42 /* Override linux_nat_target low methods. */
43
44 /* ADI support */
low_forget_process(pid_t pid)45 void low_forget_process (pid_t pid) override
46 { sparc64_forget_process (pid); }
47 };
48
49 static sparc64_linux_nat_target the_sparc64_linux_nat_target;
50
51 static const struct sparc_gregmap sparc64_linux_ptrace_gregmap =
52 {
53 16 * 8, /* "tstate" */
54 17 * 8, /* %pc */
55 18 * 8, /* %npc */
56 19 * 8, /* %y */
57 -1, /* %wim */
58 -1, /* %tbr */
59 0 * 8, /* %g1 */
60 -1, /* %l0 */
61 4 /* sizeof (%y) */
62 };
63
64
65 void
supply_gregset(struct regcache * regcache,const prgregset_t * gregs)66 supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
67 {
68 sparc64_supply_gregset (sparc_gregmap, regcache, -1, gregs);
69 }
70
71 void
supply_fpregset(struct regcache * regcache,const prfpregset_t * fpregs)72 supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
73 {
74 sparc64_supply_fpregset (&sparc64_bsd_fpregmap, regcache, -1, fpregs);
75 }
76
77 void
fill_gregset(const struct regcache * regcache,prgregset_t * gregs,int regnum)78 fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
79 {
80 sparc64_collect_gregset (sparc_gregmap, regcache, regnum, gregs);
81 }
82
83 void
fill_fpregset(const struct regcache * regcache,prfpregset_t * fpregs,int regnum)84 fill_fpregset (const struct regcache *regcache,
85 prfpregset_t *fpregs, int regnum)
86 {
87 sparc64_collect_fpregset (&sparc64_bsd_fpregmap, regcache, regnum, fpregs);
88 }
89
90 void _initialize_sparc64_linux_nat ();
91 void
_initialize_sparc64_linux_nat()92 _initialize_sparc64_linux_nat ()
93 {
94 sparc_fpregmap = &sparc64_bsd_fpregmap;
95
96 /* Register the target. */
97 linux_target = &the_sparc64_linux_nat_target;
98 add_inf_child_target (&the_sparc64_linux_nat_target);
99
100 sparc_gregmap = &sparc64_linux_ptrace_gregmap;
101 }
102