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1// SPDX-License-Identifier: LGPL-2.12/*3 * trace/beauty/kcmp.c4 *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 <sys/types.h>11#include <machine.h>12#include <uapi/linux/kcmp.h>13 14#include "trace/beauty/generated/kcmp_type_array.c"15 16size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg)17{18	unsigned long fd = arg->val;19	int type = syscall_arg__val(arg, 2);20	pid_t pid;21 22	if (type != KCMP_FILE)23		return syscall_arg__scnprintf_long(bf, size, arg);24 25	pid = syscall_arg__val(arg, arg->idx == 3 ? 0 : 1); /* idx1 -> pid1, idx2 -> pid2 */26	return pid__scnprintf_fd(arg->trace, pid, fd, bf, size);27}28 29static size_t kcmp__scnprintf_type(int type, char *bf, size_t size, bool show_prefix)30{31	static DEFINE_STRARRAY(kcmp_types, "KCMP_");32	return strarray__scnprintf(&strarray__kcmp_types, bf, size, "%d", show_prefix, type);33}34 35size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg)36{37	unsigned long type = arg->val;38 39	if (type != KCMP_FILE)40		arg->mask |= (1 << 3) | (1 << 4); /* Ignore idx1 and idx2 */41 42	return kcmp__scnprintf_type(type, bf, size, arg->show_string_prefix);43}44