License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-block.git] / tools / perf / trace / beauty / futex_op.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/futex.h>
3
4 #ifndef FUTEX_WAIT_BITSET
5 #define FUTEX_WAIT_BITSET         9
6 #endif
7 #ifndef FUTEX_WAKE_BITSET
8 #define FUTEX_WAKE_BITSET        10
9 #endif
10 #ifndef FUTEX_WAIT_REQUEUE_PI
11 #define FUTEX_WAIT_REQUEUE_PI    11
12 #endif
13 #ifndef FUTEX_CMP_REQUEUE_PI
14 #define FUTEX_CMP_REQUEUE_PI     12
15 #endif
16 #ifndef FUTEX_CLOCK_REALTIME
17 #define FUTEX_CLOCK_REALTIME    256
18 #endif
19
20 static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
21 {
22         enum syscall_futex_args {
23                 SCF_UADDR   = (1 << 0),
24                 SCF_OP      = (1 << 1),
25                 SCF_VAL     = (1 << 2),
26                 SCF_TIMEOUT = (1 << 3),
27                 SCF_UADDR2  = (1 << 4),
28                 SCF_VAL3    = (1 << 5),
29         };
30         int op = arg->val;
31         int cmd = op & FUTEX_CMD_MASK;
32         size_t printed = 0;
33
34         switch (cmd) {
35 #define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n);
36         P_FUTEX_OP(WAIT);           arg->mask |= SCF_VAL3|SCF_UADDR2;             break;
37         P_FUTEX_OP(WAKE);           arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
38         P_FUTEX_OP(FD);             arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
39         P_FUTEX_OP(REQUEUE);        arg->mask |= SCF_VAL3|SCF_TIMEOUT;            break;
40         P_FUTEX_OP(CMP_REQUEUE);    arg->mask |= SCF_TIMEOUT;                     break;
41         P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT;                     break;
42         P_FUTEX_OP(WAKE_OP);                                                      break;
43         P_FUTEX_OP(LOCK_PI);        arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
44         P_FUTEX_OP(UNLOCK_PI);      arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
45         P_FUTEX_OP(TRYLOCK_PI);     arg->mask |= SCF_VAL3|SCF_UADDR2;             break;
46         P_FUTEX_OP(WAIT_BITSET);    arg->mask |= SCF_UADDR2;                      break;
47         P_FUTEX_OP(WAKE_BITSET);    arg->mask |= SCF_UADDR2;                      break;
48         P_FUTEX_OP(WAIT_REQUEUE_PI);                                              break;
49         default: printed = scnprintf(bf, size, "%#x", cmd);                       break;
50         }
51
52         if (op & FUTEX_PRIVATE_FLAG)
53                 printed += scnprintf(bf + printed, size - printed, "|PRIV");
54
55         if (op & FUTEX_CLOCK_REALTIME)
56                 printed += scnprintf(bf + printed, size - printed, "|CLKRT");
57
58         return printed;
59 }
60
61 #define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op