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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PERF_TRACE_BEAUTY_H
#define _PERF_TRACE_BEAUTY_H
#include <linux/kernel.h>
#include <linux/types.h>
#include <sys/types.h>
#include <stdbool.h>
struct strarray {
u64 offset;
int nr_entries;
const char *prefix;
const char * const *entries;
};
#define DEFINE_STRARRAY(array, _prefix) struct strarray strarray__##array = { \
.nr_entries = ARRAY_SIZE(array), \
.entries = array, \
.prefix = _prefix, \
}
#define DEFINE_STRARRAY_OFFSET(array, _prefix, off) struct strarray strarray__##array = { \
.offset = off, \
.nr_entries = ARRAY_SIZE(array), \
.entries = array, \
.prefix = _prefix, \
}
size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val);
size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val);
size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, bool show_prefix, unsigned long flags);
bool strarray__strtoul(struct strarray *sa, char *bf, size_t size, u64 *ret);
bool strarray__strtoul_flags(struct strarray *sa, char *bf, size_t size, u64 *ret);
struct trace;
struct thread;
struct file {
char *pathname;
int dev_maj;
};
struct file *thread__files_entry(struct thread *thread, int fd);
struct strarrays {
int nr_entries;
struct strarray **entries;
};
#define DEFINE_STRARRAYS(array) struct strarrays strarrays__##array = { \
.nr_entries = ARRAY_SIZE(array), \
.entries = array, \
}
size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val);
bool strarrays__strtoul(struct strarrays *sas, char *bf, size_t size, u64 *ret);
size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size);
extern struct strarray strarray__socket_families;
extern struct strarray strarray__socket_level;
/**
* augmented_arg: extra payload for syscall pointer arguments
* If perf_sample->raw_size is more than what a syscall sys_enter_FOO puts, then
* its the arguments contents, so that we can show more than just a
* pointer. This will be done initially with eBPF, the start of that is at the
* tools/perf/util/bpf_skel/augmented_syscalls.bpf.c that will eventually be
* done automagically caching the running kernel tracefs events data into an
* eBPF C script, that then gets compiled and its .o file cached for subsequent
* use. For char pointers like the ones for 'open' like syscalls its easy, for
* the rest we should use DWARF or better, BTF, much more compact.
*
* @size: 8 if all we need is an integer, otherwise all of the augmented arg.
* @int_arg: will be used for integer like pointer contents, like 'accept's 'upeer_addrlen'
* @value: u64 aligned, for structs, pathnames
*/
struct augmented_arg {
int size;
int int_arg;
u64 value[];
};
struct syscall_arg_fmt;
/**
* @val: value of syscall argument being formatted
* @len: for tracepoint dynamic arrays, if fmt->nr_entries == 0, then its not a fixed array, look at arg->len
* @args: All the args, use syscall_args__val(arg, nth) to access one
* @augmented_args: Extra data that can be collected, for instance, with eBPF for expanding the pathname for open, etc
* @augmented_args_size: augmented_args total payload size
* @thread: tid state (maps, pid, tid, etc)
* @trace: 'perf trace' internals: all threads, etc
* @parm: private area, may be an strarray, for instance
* @idx: syscall arg idx (is this the first?)
* @mask: a syscall arg may mask another arg, see syscall_arg__scnprintf_futex_op
* @show_string_prefix: When there is a common prefix in a string table, show it or not
*/
struct syscall_arg {
unsigned long val;
unsigned char *args;
struct syscall_arg_fmt *fmt;
struct {
struct augmented_arg *args;
int size;
} augmented;
struct thread *thread;
struct trace *trace;
void *parm;
u16 len;
u8 idx;
u8 mask;
bool show_string_prefix;
};
unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx);
size_t syscall_arg__scnprintf_strarray_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_STRARRAY_FLAGS syscall_arg__scnprintf_strarray_flags
bool syscall_arg__strtoul_strarray(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
#define STUL_STRARRAY syscall_arg__strtoul_strarray
bool syscall_arg__strtoul_strarray_flags(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
#define STUL_STRARRAY_FLAGS syscall_arg__strtoul_strarray_flags
bool syscall_arg__strtoul_strarrays(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
#define STUL_STRARRAYS syscall_arg__strtoul_strarrays
size_t syscall_arg__scnprintf_x86_irq_vectors(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_X86_IRQ_VECTORS syscall_arg__scnprintf_x86_irq_vectors
bool syscall_arg__strtoul_x86_irq_vectors(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
#define STUL_X86_IRQ_VECTORS syscall_arg__strtoul_x86_irq_vectors
size_t syscall_arg__scnprintf_x86_MSR(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_X86_MSR syscall_arg__scnprintf_x86_MSR
bool syscall_arg__strtoul_x86_MSR(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
#define STUL_X86_MSR syscall_arg__strtoul_x86_MSR
size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_STRARRAYS syscall_arg__scnprintf_strarrays
size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FD syscall_arg__scnprintf_fd
size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_HEX syscall_arg__scnprintf_hex
size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PTR syscall_arg__scnprintf_ptr
size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_INT syscall_arg__scnprintf_int
size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_LONG syscall_arg__scnprintf_long
size_t syscall_arg__scnprintf_pid(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PID syscall_arg__scnprintf_pid
size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_CLONE_FLAGS syscall_arg__scnprintf_clone_flags
size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FCNTL_CMD syscall_arg__scnprintf_fcntl_cmd
size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FCNTL_ARG syscall_arg__scnprintf_fcntl_arg
size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FLOCK syscall_arg__scnprintf_flock
size_t syscall_arg__scnprintf_fsmount_attr_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FSMOUNT_ATTR_FLAGS syscall_arg__scnprintf_fsmount_attr_flags
size_t syscall_arg__scnprintf_fspick_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_FSPICK_FLAGS syscall_arg__scnprintf_fspick_flags
size_t syscall_arg__scnprintf_ioctl_cmd(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_IOCTL_CMD syscall_arg__scnprintf_ioctl_cmd
size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_KCMP_TYPE syscall_arg__scnprintf_kcmp_type
size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_KCMP_IDX syscall_arg__scnprintf_kcmp_idx
unsigned long syscall_arg__mask_val_mount_flags(struct syscall_arg *arg, unsigned long flags);
#define SCAMV_MOUNT_FLAGS syscall_arg__mask_val_mount_flags
size_t syscall_arg__scnprintf_mount_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_MOUNT_FLAGS syscall_arg__scnprintf_mount_flags
size_t syscall_arg__scnprintf_move_mount_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_MOVE_MOUNT_FLAGS syscall_arg__scnprintf_move_mount_flags
size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PKEY_ALLOC_ACCESS_RIGHTS syscall_arg__scnprintf_pkey_alloc_access_rights
size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
size_t syscall_arg__scnprintf_x86_arch_prctl_code(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_X86_ARCH_PRCTL_CODE syscall_arg__scnprintf_x86_arch_prctl_code
size_t syscall_arg__scnprintf_prctl_option(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PRCTL_OPTION syscall_arg__scnprintf_prctl_option
extern struct strarray strarray__prctl_options;
size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PRCTL_ARG2 syscall_arg__scnprintf_prctl_arg2
size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_PRCTL_ARG3 syscall_arg__scnprintf_prctl_arg3
size_t syscall_arg__scnprintf_renameat2_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_RENAMEAT2_FLAGS syscall_arg__scnprintf_renameat2_flags
size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_SOCKADDR syscall_arg__scnprintf_sockaddr
size_t syscall_arg__scnprintf_socket_protocol(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_SK_PROTO syscall_arg__scnprintf_socket_protocol
size_t syscall_arg__scnprintf_socket_level(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_SK_LEVEL syscall_arg__scnprintf_socket_level
size_t syscall_arg__scnprintf_statx_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_STATX_FLAGS syscall_arg__scnprintf_statx_flags
size_t syscall_arg__scnprintf_statx_mask(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_STATX_MASK syscall_arg__scnprintf_statx_mask
size_t syscall_arg__scnprintf_sync_file_range_flags(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_SYNC_FILE_RANGE_FLAGS syscall_arg__scnprintf_sync_file_range_flags
size_t syscall_arg__scnprintf_timespec(char *bf, size_t size, struct syscall_arg *arg);
#define SCA_TIMESPEC syscall_arg__scnprintf_timespec
size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix);
void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg));
const char *arch_syscalls__strerrno(const char *arch, int err);
#endif /* _PERF_TRACE_BEAUTY_H */
|
