1 // SPDX-License-Identifier: LGPL-2.1 2 #include "trace/beauty/beauty.h" 3 #include <linux/futex.h> 4 5 #ifndef FUTEX_WAIT_BITSET 6 #define FUTEX_WAIT_BITSET 9 7 #endif 8 #ifndef FUTEX_WAKE_BITSET 9 #define FUTEX_WAKE_BITSET 10 10 #endif 11 #ifndef FUTEX_WAIT_REQUEUE_PI 12 #define FUTEX_WAIT_REQUEUE_PI 11 13 #endif 14 #ifndef FUTEX_CMP_REQUEUE_PI 15 #define FUTEX_CMP_REQUEUE_PI 12 16 #endif 17 #ifndef FUTEX_CLOCK_REALTIME 18 #define FUTEX_CLOCK_REALTIME 256 19 #endif 20 21 size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg) 22 { 23 bool show_prefix = arg->show_string_prefix; 24 const char *prefix = "FUTEX_"; 25 enum syscall_futex_args { 26 SCF_UADDR = (1 << 0), 27 SCF_OP = (1 << 1), 28 SCF_VAL = (1 << 2), 29 SCF_TIMEOUT = (1 << 3), 30 SCF_UADDR2 = (1 << 4), 31 SCF_VAL3 = (1 << 5), 32 }; 33 int op = arg->val; 34 int cmd = op & FUTEX_CMD_MASK; 35 size_t printed = 0; 36 37 switch (cmd) { 38 #define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", #n); 39 P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break; 40 P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 41 P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 42 P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break; 43 P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break; 44 P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break; 45 P_FUTEX_OP(WAKE_OP); break; 46 P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 47 P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 48 P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break; 49 P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break; 50 P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break; 51 P_FUTEX_OP(WAIT_REQUEUE_PI); break; 52 default: printed = scnprintf(bf, size, "%#x", cmd); break; 53 } 54 55 if (op & FUTEX_PRIVATE_FLAG) 56 printed += scnprintf(bf + printed, size - printed, "|%s%s", show_prefix ? prefix : "", "PRIVATE_FLAG"); 57 58 if (op & FUTEX_CLOCK_REALTIME) 59 printed += scnprintf(bf + printed, size - printed, "|%s%s", show_prefix ? prefix : "", "CLOCK_REALTIME"); 60 61 return printed; 62 } 63