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[strace] / print_fields.h
1 /*
2  * Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27
28 #ifndef STRACE_PRINT_FIELDS_H
29 #define STRACE_PRINT_FIELDS_H
30
31 /*
32  * The printf-like function to use in header files
33  * shared between strace and its tests.
34  */
35 #ifndef STRACE_PRINTF
36 # define STRACE_PRINTF tprintf
37 #endif
38
39 #define PRINT_FIELD_D(prefix_, where_, field_)                          \
40         STRACE_PRINTF("%s%s=%lld", (prefix_), #field_,                  \
41                       sign_extend_unsigned_to_ll((where_).field_))
42
43 #define PRINT_FIELD_U(prefix_, where_, field_)                          \
44         STRACE_PRINTF("%s%s=%llu", (prefix_), #field_,                  \
45                       zero_extend_signed_to_ull((where_).field_))
46
47 #define PRINT_FIELD_X(prefix_, where_, field_)                          \
48         STRACE_PRINTF("%s%s=%#llx", (prefix_), #field_,                 \
49                       zero_extend_signed_to_ull((where_).field_))
50
51 #define PRINT_FIELD_COOKIE(prefix_, where_, field_)                     \
52         STRACE_PRINTF("%s%s=[%llu, %llu]", (prefix_), #field_,          \
53                       zero_extend_signed_to_ull((where_).field_[0]),    \
54                       zero_extend_signed_to_ull((where_).field_[1]))
55
56 #define PRINT_FIELD_FLAGS(prefix_, where_, field_, xlat_, dflt_)        \
57         do {                                                            \
58                 STRACE_PRINTF("%s%s=", (prefix_), #field_);             \
59                 printflags((xlat_), (where_).field_, (dflt_));          \
60         } while (0)
61
62 #define PRINT_FIELD_XVAL(prefix_, where_, field_, xlat_, dflt_)         \
63         do {                                                            \
64                 STRACE_PRINTF("%s%s=", (prefix_), #field_);             \
65                 printxval((xlat_), (where_).field_, (dflt_));           \
66         } while (0)
67
68 #define PRINT_FIELD_UID(prefix_, where_, field_)                                        \
69         do {                                                                            \
70                 if (sign_extend_unsigned_to_ll((where_).field_) == -1LL)                \
71                         STRACE_PRINTF("%s%s=-1", (prefix_), #field_);                   \
72                 else                                                                    \
73                         STRACE_PRINTF("%s%s=%llu", (prefix_), #field_,                  \
74                                       zero_extend_signed_to_ull((where_).field_));      \
75         } while (0)
76
77 #define PRINT_FIELD_QUOTED_STRING(prefix_, where_, field_, len_, style_)                \
78         do {                                                                            \
79                 STRACE_PRINTF("%s%s=", (prefix_), #field_);                             \
80                 print_quoted_string((const char *)(where_).field_, len_, style_);       \
81         } while (0)
82
83 #endif /* !STRACE_PRINT_FIELDS_H */