blob: 0aa34bc594359610d939043a1e5c0bdb2b9f5028 [file] [log] [blame]
//===-- FileSystemPosix.cpp -----------------------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "lldb/Host/FileSystem.h"
// C includes
#include <dirent.h>
#include <fcntl.h>
#include <sys/mount.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#if defined(__NetBSD__)
#include <sys/statvfs.h>
// lldb Includes
#include "lldb/Host/Host.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/Support/Errno.h"
#include "llvm/Support/FileSystem.h"
using namespace lldb;
using namespace lldb_private;
const char *FileSystem::DEV_NULL = "/dev/null";
Status FileSystem::Symlink(const FileSpec &src, const FileSpec &dst) {
Status error;
if (::symlink(dst.GetCString(), src.GetCString()) == -1)
return error;
Status FileSystem::Readlink(const FileSpec &src, FileSpec &dst) {
Status error;
char buf[PATH_MAX];
ssize_t count = ::readlink(src.GetPath().c_str(), buf, sizeof(buf) - 1);
if (count < 0)
else {
buf[count] = '\0'; // Success
dst.SetFile(buf, FileSpec::Style::native);
return error;
Status FileSystem::ResolveSymbolicLink(const FileSpec &src, FileSpec &dst) {
char resolved_path[PATH_MAX];
if (!src.GetPath(resolved_path, sizeof(resolved_path))) {
return Status("Couldn't get the canonical path for %s", src.GetCString());
char real_path[PATH_MAX + 1];
if (realpath(resolved_path, real_path) == nullptr) {
Status err;
return err;
dst = FileSpec(real_path);
return Status();
FILE *FileSystem::Fopen(const char *path, const char *mode) {
return llvm::sys::RetryAfterSignal(nullptr, ::fopen, path, mode);
int FileSystem::Open(const char *path, int flags, int mode) {
return llvm::sys::RetryAfterSignal(-1, ::open, path, flags, mode);