45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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/*
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* trace/beauty/kcmp.c
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*
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* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
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*
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* Released under the GPL v2. (and only v2, not any later version)
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*/
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#include "trace/beauty/beauty.h"
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#include <linux/kernel.h>
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#include <sys/types.h>
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#include <machine.h>
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#include <uapi/linux/kcmp.h>
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#include "trace/beauty/generated/kcmp_type_array.c"
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size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg)
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{
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unsigned long fd = arg->val;
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int type = syscall_arg__val(arg, 2);
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pid_t pid;
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if (type != KCMP_FILE)
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return syscall_arg__scnprintf_long(bf, size, arg);
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pid = syscall_arg__val(arg, arg->idx == 3 ? 0 : 1); /* idx1 -> pid1, idx2 -> pid2 */
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return pid__scnprintf_fd(arg->trace, pid, fd, bf, size);
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}
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static size_t kcmp__scnprintf_type(int type, char *bf, size_t size)
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{
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static DEFINE_STRARRAY(kcmp_types);
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return strarray__scnprintf(&strarray__kcmp_types, bf, size, "%d", type);
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}
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size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg)
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{
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unsigned long type = arg->val;
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if (type != KCMP_FILE)
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arg->mask |= (1 << 3) | (1 << 4); /* Ignore idx1 and idx2 */
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return kcmp__scnprintf_type(type, bf, size);
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}
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