1 // SPDX-License-Identifier: LGPL-2.1 2 3 #include "trace/beauty/beauty.h" 4 #include <linux/kernel.h> 5 #include <uapi/linux/fcntl.h> 6 7 #ifndef LOCK_MAND 8 #define LOCK_MAND 32 9 #endif 10 11 #ifndef LOCK_READ 12 #define LOCK_READ 64 13 #endif 14 15 #ifndef LOCK_WRITE 16 #define LOCK_WRITE 128 17 #endif 18 19 #ifndef LOCK_RW 20 #define LOCK_RW 192 21 #endif 22 23 size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg) 24 { 25 bool show_prefix = arg->show_string_prefix; 26 const char *prefix = "LOCK_"; 27 int printed = 0, op = arg->val; 28 29 if (op == 0) 30 return scnprintf(bf, size, "NONE"); 31 #define P_CMD(cmd) \ 32 if ((op & LOCK_##cmd) == LOCK_##cmd) { \ 33 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #cmd); \ 34 op &= ~LOCK_##cmd; \ 35 } 36 37 P_CMD(SH); 38 P_CMD(EX); 39 P_CMD(NB); 40 P_CMD(UN); 41 P_CMD(MAND); 42 P_CMD(RW); 43 P_CMD(READ); 44 P_CMD(WRITE); 45 #undef P_OP 46 47 if (op) 48 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op); 49 50 return printed; 51 } 52