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      1 /*
      2  * Copyright (c) 2015 Dmitry V. Levin <ldv (at) altlinux.org>
      3  * Copyright (c) 2015-2017 The strace developers.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef STRACE_KERNEL_TYPES_H
     30 #define STRACE_KERNEL_TYPES_H
     31 
     32 # if defined HAVE___KERNEL_LONG_T && defined HAVE___KERNEL_ULONG_T
     33 
     34 # include <asm/posix_types.h>
     35 
     36 typedef __kernel_long_t kernel_long_t;
     37 typedef __kernel_ulong_t kernel_ulong_t;
     38 
     39 # elif (defined __x86_64__ && defined __ILP32__) || defined LINUX_MIPSN32
     40 
     41 typedef long long kernel_long_t;
     42 typedef unsigned long long kernel_ulong_t;
     43 
     44 # else
     45 
     46 typedef long kernel_long_t;
     47 typedef unsigned long kernel_ulong_t;
     48 
     49 # endif
     50 
     51 typedef struct {
     52 	kernel_ulong_t	d_ino;
     53 	kernel_ulong_t	d_off;
     54 	unsigned short	d_reclen;
     55 	char		d_name[1];
     56 } kernel_dirent;
     57 
     58 #if SIZEOF_KERNEL_LONG_T > SIZEOF_LONG
     59 # define PRI_kl "ll"
     60 #else
     61 # define PRI_kl "l"
     62 #endif
     63 
     64 #define PRI_kld PRI_kl"d"
     65 #define PRI_klu PRI_kl"u"
     66 #define PRI_klx PRI_kl"x"
     67 
     68 /*
     69  * The kernel used to define 64-bit types on 64-bit systems on a per-arch
     70  * basis.  Some architectures would use unsigned long and others would use
     71  * unsigned long long.  These types were exported as part of the
     72  * kernel-userspace ABI and now must be maintained forever.  This matches
     73  * what the kernel exports for each architecture so we don't need to cast
     74  * every printing of __u64 or __s64 to stdint types.
     75  * The exception is Android, where for MIPS64 unsigned long long is used.
     76  */
     77 #if SIZEOF_LONG == 4
     78 # define PRI__64 "ll"
     79 #elif defined ALPHA || defined IA64 || defined __powerpc64__ \
     80       || (defined MIPS && !defined __ANDROID__)
     81 # define PRI__64 "l"
     82 #else
     83 # define PRI__64 "ll"
     84 #endif
     85 
     86 #define PRI__d64 PRI__64"d"
     87 #define PRI__u64 PRI__64"u"
     88 #define PRI__x64 PRI__64"x"
     89 
     90 #endif /* !STRACE_KERNEL_TYPES_H */
     91