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// SPDX-License-Identifier: LGPL-2.1 #include "trace/beauty/beauty.h" #include <linux/kernel.h> #include <uapi/linux/fcntl.h> #ifndef LOCK_MAND #define LOCK_MAND 32 #endif #ifndef LOCK_READ #define LOCK_READ 64 #endif #ifndef LOCK_WRITE #define LOCK_WRITE 128 #endif #ifndef LOCK_RW #define LOCK_RW 192 #endif size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg) { bool show_prefix = arg->show_string_prefix; const char *prefix = "LOCK_"; int printed = 0, op = arg->val; if (op == 0) return scnprintf(bf, size, "NONE"); #define P_CMD(cmd) \ if ((op & LOCK_##cmd) == LOCK_##cmd) { \ printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #cmd); \ op &= ~LOCK_##cmd; \ } P_CMD(SH); P_CMD(EX); P_CMD(NB); P_CMD(UN); P_CMD(MAND); P_CMD(RW); P_CMD(READ); P_CMD(WRITE); #undef P_OP if (op) printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op); return printed; } |