1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/* -*- linux-c -*-
* Functions to access the members of pt_regs struct
* Copyright (C) 2012-2019 Red Hat Inc.
*
* This file is part of systemtap, and is free software. You can
* redistribute it and/or modify it under the terms of the GNU General
* Public License (GPL); either version 2, or (at your option) any
* later version.
*/
#ifndef _DYNINST_REGS_C_
#define _DYNINST_REGS_C_
// NB: these differ from kernel mode because there's no access
// to eflags, segment, or cr registers.
#if defined (__x86_64__)
#define EREG(nm, regs) ((regs)->r##nm)
#define RREG(nm, regs) ((regs)->r##nm)
static void _stp_print_regs(struct pt_regs * regs)
{
_stp_printf("RIP: %016lx\nRSP: %016lx\n",
RREG(ip, regs), RREG(sp, regs));
_stp_printf("RAX: %016lx RBX: %016lx RCX: %016lx\n",
RREG(ax, regs), RREG(bx, regs), RREG(cx, regs));
_stp_printf("RDX: %016lx RSI: %016lx RDI: %016lx\n",
RREG(dx, regs), RREG(si, regs), RREG(di, regs));
_stp_printf("RBP: %016lx R08: %016lx R09: %016lx\n",
RREG(bp, regs), regs->r8, regs->r9);
_stp_printf("R10: %016lx R11: %016lx R12: %016lx\n",
regs->r10, regs->r11, regs->r12);
_stp_printf("R13: %016lx R14: %016lx R15: %016lx\n",
regs->r13, regs->r14, regs->r15);
}
#elif defined (__i386__)
#define EREG(nm, regs) ((regs)->e##nm)
#define XREG(nm, regs) ((regs)->x##nm)
/** Write the registers to a string.
* @param regs The pt_regs saved by the kprobe.
* @note i386 and x86_64 only so far.
*/
static void _stp_print_regs(struct pt_regs * regs)
{
_stp_printf ("EIP: %08lx\n", EREG(ip, regs));
_stp_printf ("ESP: %08lx\n", EREG(sp, regs));
_stp_printf ("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
EREG(ax, regs), EREG(bx, regs), EREG(cx, regs), EREG(dx, regs));
_stp_printf ("ESI: %08lx EDI: %08lx EBP: %08lx\n",
EREG(si, regs), EREG(di, regs), EREG(bp, regs));
}
#elif defined(__powerpc__) || defined(__powerpc64__)
static void _stp_print_regs(struct pt_regs * regs)
{
int i;
_stp_printf("NIP: %016lX", regs->nip);
for (i = 0; i < 32; i++) {
if ((i % 4) == 0) {
_stp_printf("\n GPR%02d: ", i);
}
_stp_printf("%016lX ", regs->gpr[i]);
}
_stp_printf("\n");
}
#elif defined (__aarch64__)
static void _stp_print_regs(struct pt_regs * regs)
{
int i;
_stp_printf("pc : [<%016llx>] pstate: %08llx\n",
regs->pc, regs->pstate);
_stp_printf("sp : %016llx\n", regs->sp);
for (i = 29; i >= 0; i--) {
_stp_printf("x%-2d: %016llx ", i, regs->regs[i]);
if (i % 2 == 0)
_stp_printf("\n");
}
_stp_printf("\n");
}
#endif
#endif /* _DYNINST_REGS_C_ */
|
