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trgt_amd64.c (142151) trgt_amd64.c (149954)
1/*
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/trgt_amd64.c 142151 2005-02-20 22:55:07Z kan $");
28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/trgt_amd64.c 149954 2005-09-10 18:25:53Z marcel $");
29
30#include <sys/types.h>
31#include <machine/pcb.h>
32#include <err.h>
33#include <kvm.h>
34#include <string.h>
35
29
30#include <sys/types.h>
31#include <machine/pcb.h>
32#include <err.h>
33#include <kvm.h>
34#include <string.h>
35
36#include "kgdb.h"
37
38#include <defs.h>
39#include <target.h>
40#include <gdbthread.h>
41#include <inferior.h>
42#include <regcache.h>
36#include <defs.h>
37#include <target.h>
38#include <gdbthread.h>
39#include <inferior.h>
40#include <regcache.h>
41#include <frame-unwind.h>
43
42
43#include "kgdb.h"
44
44void
45kgdb_trgt_fetch_registers(int regno __unused)
46{
47 struct kthr *kt;
48 struct pcb pcb;
49
50 kt = kgdb_thr_lookup_tid(ptid_get_tid(inferior_ptid));
51 if (kt == NULL)
52 return;
53 if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) {
54 warnx("kvm_read: %s", kvm_geterr(kvm));
55 memset(&pcb, 0, sizeof(pcb));
56 }
57
58 supply_register(1, (char *)&pcb.pcb_rbx);
59 supply_register(6, (char *)&pcb.pcb_rbp);
60 supply_register(7, (char *)&pcb.pcb_rsp);
61 supply_register(12, (char *)&pcb.pcb_r12);
62 supply_register(13, (char *)&pcb.pcb_r13);
63 supply_register(14, (char *)&pcb.pcb_r14);
64 supply_register(15, (char *)&pcb.pcb_r15);
65 supply_register(16, (char *)&pcb.pcb_rip);
66 supply_register(17, (char *)&pcb.pcb_rflags);
67}
68
69void
70kgdb_trgt_store_registers(int regno __unused)
71{
72 fprintf_unfiltered(gdb_stderr, "XXX: %s\n", __func__);
73}
45void
46kgdb_trgt_fetch_registers(int regno __unused)
47{
48 struct kthr *kt;
49 struct pcb pcb;
50
51 kt = kgdb_thr_lookup_tid(ptid_get_tid(inferior_ptid));
52 if (kt == NULL)
53 return;
54 if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) {
55 warnx("kvm_read: %s", kvm_geterr(kvm));
56 memset(&pcb, 0, sizeof(pcb));
57 }
58
59 supply_register(1, (char *)&pcb.pcb_rbx);
60 supply_register(6, (char *)&pcb.pcb_rbp);
61 supply_register(7, (char *)&pcb.pcb_rsp);
62 supply_register(12, (char *)&pcb.pcb_r12);
63 supply_register(13, (char *)&pcb.pcb_r13);
64 supply_register(14, (char *)&pcb.pcb_r14);
65 supply_register(15, (char *)&pcb.pcb_r15);
66 supply_register(16, (char *)&pcb.pcb_rip);
67 supply_register(17, (char *)&pcb.pcb_rflags);
68}
69
70void
71kgdb_trgt_store_registers(int regno __unused)
72{
73 fprintf_unfiltered(gdb_stderr, "XXX: %s\n", __func__);
74}
75
76static void
77kgdb_trgt_trapframe_this_id(struct frame_info *next_frame, void **this_cache,
78 struct frame_id *this_id)
79{
80}
81
82static void
83kgdb_trgt_trapframe_prev_register(struct frame_info *next_frame,
84 void **this_cache, int regnum, int *optimizedp, enum lval_type *lvalp,
85 CORE_ADDR *addrp, int *realnump, void *valuep)
86{
87}
88
89static const struct frame_unwind kgdb_trgt_trapframe_unwind = {
90 UNKNOWN_FRAME,
91 &kgdb_trgt_trapframe_this_id,
92 &kgdb_trgt_trapframe_prev_register
93};
94
95const struct frame_unwind *
96kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
97{
98
99 return (NULL);
100}