sanitizer_platform_limits_linux.cc revision e041c6024b3ebf1365c0f99732fc69c607577571 
1//===-- sanitizer_platform_limits_linux.cc --------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file is a part of Sanitizer common code.
11//
12// Sizes and layouts of linux kernel data structures.
13//===----------------------------------------------------------------------===//
14
15// This is a separate compilation unit for linux headers that conflict with
16// userspace headers.
17// Most "normal" includes go in sanitizer_platform_limits_posix.cc
18
19#include "sanitizer_platform.h"
20#if SANITIZER_LINUX
21
22#include "sanitizer_internal_defs.h"
23#include "sanitizer_platform_limits_posix.h"
24
25// For offsetof -> __builtin_offsetof definition.
26#include <stddef.h>
27
28// This header seems to contain the definitions of _kernel_ stat* structs.
29#include <asm/stat.h>
30#include <linux/aio_abi.h>
31
32#if SANITIZER_ANDROID
33#include <asm/statfs.h>
34#else
35#include <sys/statfs.h>
36#endif
37
38#if !SANITIZER_ANDROID
39#include <linux/perf_event.h>
40#endif
41
42namespace __sanitizer {
43  unsigned struct___old_kernel_stat_sz = sizeof(struct __old_kernel_stat);
44  unsigned struct_kernel_stat_sz = sizeof(struct stat);
45  unsigned struct_io_event_sz = sizeof(struct io_event);
46  unsigned struct_statfs64_sz = sizeof(struct statfs64);
47
48  unsigned iocb_cmd_pread = IOCB_CMD_PREAD;
49  unsigned iocb_cmd_pwrite = IOCB_CMD_PWRITE;
50
51#if !defined(_LP64) && !defined(__x86_64__)
52  unsigned struct_kernel_stat64_sz = sizeof(struct stat64);
53#else
54  unsigned struct_kernel_stat64_sz = 0;
55#endif
56
57#if !SANITIZER_ANDROID
58  unsigned struct_perf_event_attr_sz = sizeof(struct perf_event_attr);
59#endif
60}  // namespace __sanitizer
61
62CHECK_TYPE_SIZE(iocb);
63CHECK_SIZE_AND_OFFSET(iocb, aio_data);
64// Skip aio_key, it's weird.
65CHECK_SIZE_AND_OFFSET(iocb, aio_lio_opcode);
66CHECK_SIZE_AND_OFFSET(iocb, aio_reqprio);
67CHECK_SIZE_AND_OFFSET(iocb, aio_fildes);
68CHECK_SIZE_AND_OFFSET(iocb, aio_buf);
69CHECK_SIZE_AND_OFFSET(iocb, aio_nbytes);
70CHECK_SIZE_AND_OFFSET(iocb, aio_offset);
71
72#endif  // SANITIZER_LINUX
73