1 //===-- sanitizer_linux.h ---------------------------------------*- C++ -*-===//
3 // This file is distributed under the University of Illinois Open Source
4 // License. See LICENSE.TXT for details.
6 //===----------------------------------------------------------------------===//
8 // Linux-specific syscall wrappers and classes.
10 //===----------------------------------------------------------------------===//
11 #ifndef SANITIZER_LINUX_H
12 #define SANITIZER_LINUX_H
14 #include "sanitizer_platform.h"
16 #include "sanitizer_common.h"
17 #include "sanitizer_internal_defs.h"
18 #include "sanitizer_platform_limits_posix.h"
20 struct link_map
; // Opaque type returned by dlopen().
23 namespace __sanitizer
{
24 // Dirent structure for getdents(). Note that this structure is different from
25 // the one in <dirent.h>, which is used by readdir().
29 uptr
internal_getdents(fd_t fd
, struct linux_dirent
*dirp
, unsigned int count
);
30 uptr
internal_prctl(int option
, uptr arg2
, uptr arg3
, uptr arg4
, uptr arg5
);
31 uptr
internal_sigaltstack(const struct sigaltstack
* ss
,
32 struct sigaltstack
* oss
);
33 uptr
internal_sigaction(int signum
, const __sanitizer_kernel_sigaction_t
*act
,
34 __sanitizer_kernel_sigaction_t
*oldact
);
35 uptr
internal_sigprocmask(int how
, __sanitizer_kernel_sigset_t
*set
,
36 __sanitizer_kernel_sigset_t
*oldset
);
37 void internal_sigfillset(__sanitizer_kernel_sigset_t
*set
);
38 void internal_sigdelset(__sanitizer_kernel_sigset_t
*set
, int signum
);
41 uptr
internal_clone(int (*fn
)(void *), void *child_stack
, int flags
, void *arg
,
42 int *parent_tidptr
, void *newtls
, int *child_tidptr
);
45 // This class reads thread IDs from /proc/<pid>/task using only syscalls.
48 explicit ThreadLister(int pid
);
50 // GetNextTID returns -1 if the list of threads is exhausted, or if there has
57 bool GetDirectoryEntries();
61 InternalScopedBuffer
<char> buffer_
;
63 struct linux_dirent
* entry_
;
67 void AdjustStackSizeLinux(void *attr
);
69 // Exposed for testing.
70 uptr
ThreadDescriptorSize();
72 uptr
ThreadSelfOffset();
74 // Matches a library's file name against a base name (stripping path and version
76 bool LibraryNameIs(const char *full_name
, const char *base_name
);
78 // Read the name of the current binary from /proc/self/exe.
79 uptr
ReadBinaryName(/*out*/char *buf
, uptr buf_len
);
80 // Cache the value of /proc/self/exe.
81 void CacheBinaryName();
83 // Call cb for each region mapped by map.
84 void ForEachMappedRegion(link_map
*map
, void (*cb
)(const void *, uptr
));
85 } // namespace __sanitizer
87 #endif // SANITIZER_LINUX
88 #endif // SANITIZER_LINUX_H