mirror of
https://github.com/FEX-Emu/FEX.git
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117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
// SPDX-License-Identifier: MIT
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/*
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$info$
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tags: LinuxSyscalls|common
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$end_info$
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*/
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#pragma once
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#include <FEXCore/Config/Config.h>
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#include <FEXCore/fextl/map.h>
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#include <FEXCore/fextl/string.h>
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#include <FEXCore/fextl/unordered_set.h>
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#include <cstdint>
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#include <fcntl.h>
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#include <functional>
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#include <mutex>
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#include <linux/limits.h>
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#include <optional>
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#include <stddef.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "LinuxSyscalls/EmulatedFiles/EmulatedFiles.h"
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namespace FEXCore::Context {
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class Context;
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}
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namespace FEX::HLE {
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[[maybe_unused]]
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static bool IsSymlink(int FD, const char *Filename) {
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// Checks to see if a filepath is a symlink.
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struct stat Buffer{};
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int Result = fstatat(FD, Filename, &Buffer, AT_SYMLINK_NOFOLLOW);
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return Result == 0 && S_ISLNK(Buffer.st_mode);
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}
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[[maybe_unused]]
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static ssize_t GetSymlink(int FD, const char *Filename, char *ResultBuffer, size_t ResultBufferSize) {
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return readlinkat(FD, Filename, ResultBuffer, ResultBufferSize);
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}
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struct open_how;
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class FileManager final {
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public:
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FileManager() = delete;
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FileManager(FileManager &&) = delete;
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FileManager(FEXCore::Context::Context *ctx);
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~FileManager();
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uint64_t Open(const char *pathname, int flags, uint32_t mode);
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uint64_t Close(int fd);
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uint64_t CloseRange(unsigned int first, unsigned int last, unsigned int flags);
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uint64_t Stat(const char *pathname, void *buf);
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uint64_t Lstat(const char *path, void *buf);
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uint64_t Access(const char *pathname, int mode);
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uint64_t FAccessat(int dirfd, const char *pathname, int mode);
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uint64_t FAccessat2(int dirfd, const char *pathname, int mode, int flags);
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uint64_t Readlink(const char *pathname, char *buf, size_t bufsiz);
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uint64_t Chmod(const char *pathname, mode_t mode);
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uint64_t Readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz);
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uint64_t Openat(int dirfs, const char *pathname, int flags, uint32_t mode);
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uint64_t Openat2(int dirfs, const char *pathname, FEX::HLE::open_how *how, size_t usize);
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uint64_t Statx(int dirfd, const char *pathname, int flags, uint32_t mask, struct statx *statxbuf);
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uint64_t Mknod(const char *pathname, mode_t mode, dev_t dev);
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uint64_t NewFSStatAt(int dirfd, const char *pathname, struct stat *buf, int flag);
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uint64_t NewFSStatAt64(int dirfd, const char *pathname, struct stat64 *buf, int flag);
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uint64_t Setxattr(const char *path, const char *name, const void *value, size_t size, int flags);
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uint64_t LSetxattr(const char *path, const char *name, const void *value, size_t size, int flags);
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uint64_t Getxattr(const char *path, const char *name, void *value, size_t size);
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uint64_t LGetxattr(const char *path, const char *name, void *value, size_t size);
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uint64_t Listxattr(const char *path, char *list, size_t size);
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uint64_t LListxattr(const char *path, char *list, size_t size);
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uint64_t Removexattr(const char *path, const char *name);
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uint64_t LRemovexattr(const char *path, const char *name);
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// vfs
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uint64_t Statfs(const char *path, void *buf);
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std::optional<std::string_view> GetSelf(const char *Pathname);
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void UpdatePID(uint32_t PID) { CurrentPID = PID; }
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fextl::string GetEmulatedPath(const char *pathname, bool FollowSymlink = false);
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using FDPathTmpData = std::array<char[PATH_MAX], 2>;
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std::pair<int, const char*> GetEmulatedFDPath(int dirfd, const char *pathname, bool FollowSymlink, FDPathTmpData &TmpFilename);
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bool SupportsProcFSInterpreterPath() const { return SupportsProcFSInterpreter; }
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private:
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bool RootFSPathExists(const char* Filepath);
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struct ThunkDBObject {
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fextl::string LibraryName;
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fextl::unordered_set<fextl::string> Depends;
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fextl::vector<fextl::string> Overlays;
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bool Enabled{};
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};
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void LoadThunkDatabase(fextl::unordered_map<fextl::string, ThunkDBObject>& ThunkDB, bool Global);
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FEX::EmulatedFile::EmulatedFDManager EmuFD;
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fextl::map<fextl::string, fextl::string, std::less<>> ThunkOverlays;
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FEX_CONFIG_OPT(Filename, APP_FILENAME);
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FEX_CONFIG_OPT(LDPath, ROOTFS);
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FEX_CONFIG_OPT(ThunkGuestLibs, THUNKGUESTLIBS);
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FEX_CONFIG_OPT(ThunkGuestLibs32, THUNKGUESTLIBS32);
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FEX_CONFIG_OPT(ThunkConfig, THUNKCONFIG);
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FEX_CONFIG_OPT(AppConfigName, APP_CONFIG_NAME);
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FEX_CONFIG_OPT(Is64BitMode, IS64BIT_MODE);
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uint32_t CurrentPID{};
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int RootFSFD{AT_FDCWD};
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bool SupportsProcFSInterpreter{};
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};
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}
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