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//===-- 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_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.
int internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
int internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
int 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_;
char buffer_[4096];
bool error_;
struct linux_dirent* entry_;
int bytes_read_;
};
void AdjustStackSizeLinux(void *attr, int verbosity);
} // namespace __sanitizer
#endif // SANITIZER_LINUX_H
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