| //===-- 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 link_map; // Opaque type returned by dlopen(). |
| 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); |
| |
| // Call cb for each region mapped by map. |
| void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr)); |
| |
| } // namespace __sanitizer |
| |
| #endif // SANITIZER_LINUX_H |