1/*
2 * Copyright (c) 2004 David Xu <davidxu@freebsd.org>
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 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
| 1/*
2 * Copyright (c) 2004 David Xu <davidxu@freebsd.org>
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 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
|
28__FBSDID("$FreeBSD: head/lib/libthread_db/arch/i386/libpthread_md.c 146818 2005-05-31 09:43:04Z dfr $");
| 28__FBSDID("$FreeBSD: head/lib/libthread_db/arch/i386/libpthread_md.c 181059 2008-07-31 16:26:58Z marcel $");
|
29
| 29
|
30#include <string.h>
| |
31#include <sys/types.h>
| 30#include <sys/types.h>
|
32#include <proc_service.h>
33#include <thread_db.h>
| |
34#include <machine/npx.h>
| 31#include <machine/npx.h>
|
| 32#include <string.h>
33#include <thread_db.h>
|
35
36#include "libpthread_db.h"
37
38static int has_xmm_regs;
39
40void
41pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
42{
43 memcpy(&uc->uc_mcontext.mc_fs, &r->r_fs, 18*4);
44 uc->uc_mcontext.mc_gs = r->r_gs;
45}
46
47void
48pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
49{
50 memcpy(&r->r_fs, &uc->uc_mcontext.mc_fs, 18*4);
51 r->r_gs = uc->uc_mcontext.mc_gs;
52}
53
54void
55pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
56{
57 if (!has_xmm_regs)
58 memcpy(&uc->uc_mcontext.mc_fpstate, r,
59 sizeof(struct save87));
60 else {
61 int i;
62 struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
63 memcpy(&sx->sv_env, &r->fpr_env, sizeof(r->fpr_env));
64 for (i = 0; i < 8; ++i)
65 memcpy(&sx->sv_fp[i].fp_acc, &r->fpr_acc[i], 10);
66 }
67}
68
69void
70pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
71{
72 if (!has_xmm_regs)
73 memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(struct save87));
74 else {
75 int i;
76 struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
77 memcpy(&r->fpr_env, &sx->sv_env, sizeof(r->fpr_env));
78 for (i = 0; i < 8; ++i)
79 memcpy(&r->fpr_acc[i], &sx->sv_fp[i].fp_acc, 10);
80 }
81}
82
83void
84pt_fxsave_to_ucontext(const char* r, ucontext_t *uc)
85{
86 if (has_xmm_regs)
87 memcpy(&uc->uc_mcontext.mc_fpstate, r, sizeof(struct savexmm));
88}
89
90void
91pt_ucontext_to_fxsave(const ucontext_t *uc, char *r)
92{
93 if (has_xmm_regs)
94 memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(struct savexmm));
95}
96
97void
98pt_md_init(void)
99{
100 ucontext_t uc;
101
102 getcontext(&uc);
103 if (uc.uc_mcontext.mc_fpformat == _MC_FPFMT_XMM)
104 has_xmm_regs = 1;
105}
106
107int
108pt_reg_sstep(struct reg *reg, int step)
109{
110 unsigned int old;
111
112 old = reg->r_eflags;
113 if (step)
114 reg->r_eflags |= 0x0100;
115 else
116 reg->r_eflags &= ~0x0100;
117 return (old != reg->r_eflags); /* changed ? */
118}
119
| 34
35#include "libpthread_db.h"
36
37static int has_xmm_regs;
38
39void
40pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
41{
42 memcpy(&uc->uc_mcontext.mc_fs, &r->r_fs, 18*4);
43 uc->uc_mcontext.mc_gs = r->r_gs;
44}
45
46void
47pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
48{
49 memcpy(&r->r_fs, &uc->uc_mcontext.mc_fs, 18*4);
50 r->r_gs = uc->uc_mcontext.mc_gs;
51}
52
53void
54pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
55{
56 if (!has_xmm_regs)
57 memcpy(&uc->uc_mcontext.mc_fpstate, r,
58 sizeof(struct save87));
59 else {
60 int i;
61 struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
62 memcpy(&sx->sv_env, &r->fpr_env, sizeof(r->fpr_env));
63 for (i = 0; i < 8; ++i)
64 memcpy(&sx->sv_fp[i].fp_acc, &r->fpr_acc[i], 10);
65 }
66}
67
68void
69pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
70{
71 if (!has_xmm_regs)
72 memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(struct save87));
73 else {
74 int i;
75 struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
76 memcpy(&r->fpr_env, &sx->sv_env, sizeof(r->fpr_env));
77 for (i = 0; i < 8; ++i)
78 memcpy(&r->fpr_acc[i], &sx->sv_fp[i].fp_acc, 10);
79 }
80}
81
82void
83pt_fxsave_to_ucontext(const char* r, ucontext_t *uc)
84{
85 if (has_xmm_regs)
86 memcpy(&uc->uc_mcontext.mc_fpstate, r, sizeof(struct savexmm));
87}
88
89void
90pt_ucontext_to_fxsave(const ucontext_t *uc, char *r)
91{
92 if (has_xmm_regs)
93 memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(struct savexmm));
94}
95
96void
97pt_md_init(void)
98{
99 ucontext_t uc;
100
101 getcontext(&uc);
102 if (uc.uc_mcontext.mc_fpformat == _MC_FPFMT_XMM)
103 has_xmm_regs = 1;
104}
105
106int
107pt_reg_sstep(struct reg *reg, int step)
108{
109 unsigned int old;
110
111 old = reg->r_eflags;
112 if (step)
113 reg->r_eflags |= 0x0100;
114 else
115 reg->r_eflags &= ~0x0100;
116 return (old != reg->r_eflags); /* changed ? */
117}
118
|