forked from OSchip/llvm-project
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
//===-- sanitizer_linux.h ---------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Linux-specific syscall wrappers and classes.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef SANITIZER_LINUX_H
|
|
#define SANITIZER_LINUX_H
|
|
|
|
#include "sanitizer_common.h"
|
|
#include "sanitizer_internal_defs.h"
|
|
|
|
struct sigaltstack;
|
|
|
|
namespace __sanitizer {
|
|
// Dirent structure for getdents(). Note that this structure is different from
|
|
// the one in <dirent.h>, which is used by readdir().
|
|
struct linux_dirent;
|
|
|
|
// Syscall wrappers.
|
|
uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
|
|
uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
|
|
uptr internal_sigaltstack(const struct sigaltstack* ss,
|
|
struct sigaltstack* oss);
|
|
|
|
// This class reads thread IDs from /proc/<pid>/task using only syscalls.
|
|
class ThreadLister {
|
|
public:
|
|
explicit ThreadLister(int pid);
|
|
~ThreadLister();
|
|
// GetNextTID returns -1 if the list of threads is exhausted, or if there has
|
|
// been an error.
|
|
int GetNextTID();
|
|
void Reset();
|
|
bool error();
|
|
|
|
private:
|
|
bool GetDirectoryEntries();
|
|
|
|
int pid_;
|
|
int descriptor_;
|
|
InternalScopedBuffer<char> buffer_;
|
|
bool error_;
|
|
struct linux_dirent* entry_;
|
|
int bytes_read_;
|
|
};
|
|
|
|
void AdjustStackSizeLinux(void *attr, int verbosity);
|
|
|
|
// Exposed for testing.
|
|
uptr ThreadDescriptorSize();
|
|
uptr ThreadSelf();
|
|
uptr ThreadSelfOffset();
|
|
|
|
// Matches a library's file name against a base name (stripping path and version
|
|
// information).
|
|
bool LibraryNameIs(const char *full_name, const char *base_name);
|
|
|
|
// Read the name of the current binary from /proc/self/exe.
|
|
uptr ReadBinaryName(/*out*/char *buf, uptr buf_len);
|
|
|
|
} // namespace __sanitizer
|
|
|
|
#endif // SANITIZER_LINUX_H
|