blob: 193c0f8272d056f562266d891cdfd14c47c011e3 (
plain)
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
93
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2023 SUSE LLC */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
SEC("?raw_tp")
__success __log_level(2)
__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0xfffffff8 goto pc+2")
__msg("mark_precise: frame0: regs=r2 stack= before 1: (87) r2 = -r2")
__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 8")
__naked int bpf_neg(void)
{
asm volatile (
"r2 = 8;"
"r2 = -r2;"
"if r2 != -8 goto 1f;"
"r1 = r10;"
"r1 += r2;"
"1:"
"r0 = 0;"
"exit;"
::: __clobber_all);
}
SEC("?raw_tp")
__success __log_level(2)
__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
__msg("mark_precise: frame0: regs=r2 stack= before 1: (d4) r2 = le16 r2")
__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
__naked int bpf_end_to_le(void)
{
asm volatile (
"r2 = 0;"
"r2 = le16 r2;"
"if r2 != 0 goto 1f;"
"r1 = r10;"
"r1 += r2;"
"1:"
"r0 = 0;"
"exit;"
::: __clobber_all);
}
SEC("?raw_tp")
__success __log_level(2)
__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
__msg("mark_precise: frame0: regs=r2 stack= before 1: (dc) r2 = be16 r2")
__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
__naked int bpf_end_to_be(void)
{
asm volatile (
"r2 = 0;"
"r2 = be16 r2;"
"if r2 != 0 goto 1f;"
"r1 = r10;"
"r1 += r2;"
"1:"
"r0 = 0;"
"exit;"
::: __clobber_all);
}
#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \
__clang_major__ >= 18
SEC("?raw_tp")
__success __log_level(2)
__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
__msg("mark_precise: frame0: regs=r2 stack= before 1: (d7) r2 = bswap16 r2")
__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
__naked int bpf_end_bswap(void)
{
asm volatile (
"r2 = 0;"
"r2 = bswap16 r2;"
"if r2 != 0 goto 1f;"
"r1 = r10;"
"r1 += r2;"
"1:"
"r0 = 0;"
"exit;"
::: __clobber_all);
}
#endif /* v4 instruction */
|
