1 | // SPDX-License-Identifier: LGPL-2.1 |
2 | /* |
3 | * trace/beauty/kcmp.c |
4 | * |
5 | * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
6 | */ |
7 | |
8 | #include "trace/beauty/beauty.h" |
9 | #include <linux/kernel.h> |
10 | #include <sys/types.h> |
11 | #include <machine.h> |
12 | #include <uapi/linux/kcmp.h> |
13 | |
14 | #include "trace/beauty/generated/kcmp_type_array.c" |
15 | |
16 | size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg) |
17 | { |
18 | unsigned long fd = arg->val; |
19 | int type = syscall_arg__val(arg, 2); |
20 | pid_t pid; |
21 | |
22 | if (type != KCMP_FILE) |
23 | return syscall_arg__scnprintf_long(bf, size, arg); |
24 | |
25 | pid = syscall_arg__val(arg, arg->idx == 3 ? 0 : 1); /* idx1 -> pid1, idx2 -> pid2 */ |
26 | return pid__scnprintf_fd(arg->trace, pid, fd, bf, size); |
27 | } |
28 | |
29 | static size_t kcmp__scnprintf_type(int type, char *bf, size_t size, bool show_prefix) |
30 | { |
31 | static DEFINE_STRARRAY(kcmp_types, "KCMP_" ); |
32 | return strarray__scnprintf(&strarray__kcmp_types, bf, size, "%d" , show_prefix, type); |
33 | } |
34 | |
35 | size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg) |
36 | { |
37 | unsigned long type = arg->val; |
38 | |
39 | if (type != KCMP_FILE) |
40 | arg->mask |= (1 << 3) | (1 << 4); /* Ignore idx1 and idx2 */ |
41 | |
42 | return kcmp__scnprintf_type(type, bf, size, show_prefix: arg->show_string_prefix); |
43 | } |
44 | |