1 // SPDX-License-Identifier: LGPL-2.1 2 /* 3 * trace/beauty/cone.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 <linux/log2.h> 11 #include <sys/types.h> 12 #include <sched.h> 13 14 static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) 15 { 16 #include "trace/beauty/generated/clone_flags_array.c" 17 static DEFINE_STRARRAY(clone_flags, "CLONE_"); 18 19 return strarray__scnprintf_flags(&strarray__clone_flags, bf, size, show_prefix, flags); 20 } 21 22 size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg) 23 { 24 unsigned long flags = arg->val; 25 enum syscall_clone_args { 26 SCC_FLAGS = (1 << 0), 27 SCC_CHILD_STACK = (1 << 1), 28 SCC_PARENT_TIDPTR = (1 << 2), 29 SCC_CHILD_TIDPTR = (1 << 3), 30 SCC_TLS = (1 << 4), 31 }; 32 if (!(flags & CLONE_PARENT_SETTID)) 33 arg->mask |= SCC_PARENT_TIDPTR; 34 35 if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID))) 36 arg->mask |= SCC_CHILD_TIDPTR; 37 38 if (!(flags & CLONE_SETTLS)) 39 arg->mask |= SCC_TLS; 40 41 return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix); 42 } 43