#include "llvm/ADT/Twine.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/PathV1.h"
#include "llvm/Support/system_error.h"
#include <ctime>
#include <iterator>
#include <stack>
#include <string>
+#include <vector>
+
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
namespace llvm {
namespace sys {
uint64_t available;
};
+
+enum perms {
+ no_perms = 0,
+ owner_read = 0400,
+ owner_write = 0200,
+ owner_exe = 0100,
+ owner_all = owner_read | owner_write | owner_exe,
+ group_read = 040,
+ group_write = 020,
+ group_exe = 010,
+ group_all = group_read | group_write | group_exe,
+ others_read = 04,
+ others_write = 02,
+ others_exe = 01,
+ others_all = others_read | others_write | others_exe,
+ all_all = owner_all | group_all | others_all,
+ set_uid_on_exe = 04000,
+ set_gid_on_exe = 02000,
+ sticky_bit = 01000,
+ perms_mask = all_all | set_uid_on_exe | set_gid_on_exe | sticky_bit,
+ perms_not_known = 0xFFFF,
+ add_perms = 0x1000,
+ remove_perms = 0x2000,
+ symlink_perms = 0x4000
+};
+
+// Helper functions so that you can use & and | to manipulate perms bits:
+inline perms operator|(perms l , perms r) {
+ return static_cast<perms>(
+ static_cast<unsigned short>(l) | static_cast<unsigned short>(r));
+}
+inline perms operator&(perms l , perms r) {
+ return static_cast<perms>(
+ static_cast<unsigned short>(l) & static_cast<unsigned short>(r));
+}
+inline perms &operator|=(perms &l, perms r) {
+ l = l | r;
+ return l;
+}
+inline perms &operator&=(perms &l, perms r) {
+ l = l & r;
+ return l;
+}
+inline perms operator~(perms x) {
+ return static_cast<perms>(~static_cast<unsigned short>(x));
+}
+
+
+
/// file_status - Represents the result of a call to stat and friends. It has
/// a platform specific member to store the result.
class file_status
{
- // implementation defined status field.
+ #if defined(LLVM_ON_UNIX)
+ dev_t fs_st_dev;
+ ino_t fs_st_ino;
+ #elif defined (LLVM_ON_WIN32)
+ uint32_t LastWriteTimeHigh;
+ uint32_t LastWriteTimeLow;
+ uint32_t VolumeSerialNumber;
+ uint32_t FileSizeHigh;
+ uint32_t FileSizeLow;
+ uint32_t FileIndexHigh;
+ uint32_t FileIndexLow;
+ #endif
+ friend bool equivalent(file_status A, file_status B);
+ friend error_code status(const Twine &path, file_status &result);
file_type Type;
+ perms Perms;
public:
- explicit file_status(file_type v=file_type::status_error)
- : Type(v) {}
+ explicit file_status(file_type v=file_type::status_error,
+ perms prms=perms_not_known)
+ : Type(v), Perms(prms) {}
+ // getters
file_type type() const { return Type; }
+ perms permissions() const { return Perms; }
+
+ // setters
void type(file_type v) { Type = v; }
+ void permissions(perms p) { Perms = p; }
+};
+
+/// file_magic - An "enum class" enumeration of file types based on magic (the first
+/// N bytes of the file).
+struct file_magic {
+ enum _ {
+ unknown = 0, ///< Unrecognized file
+ bitcode, ///< Bitcode file
+ archive, ///< ar style archive file
+ elf_relocatable, ///< ELF Relocatable object file
+ elf_executable, ///< ELF Executable image
+ elf_shared_object, ///< ELF dynamically linked shared lib
+ elf_core, ///< ELF core image
+ macho_object, ///< Mach-O Object file
+ macho_executable, ///< Mach-O Executable
+ macho_fixed_virtual_memory_shared_lib, ///< Mach-O Shared Lib, FVM
+ macho_core, ///< Mach-O Core File
+ macho_preload_executabl, ///< Mach-O Preloaded Executable
+ macho_dynamically_linked_shared_lib, ///< Mach-O dynlinked shared lib
+ macho_dynamic_linker, ///< The Mach-O dynamic linker
+ macho_bundle, ///< Mach-O Bundle file
+ macho_dynamically_linked_shared_lib_stub, ///< Mach-O Shared lib stub
+ macho_dsym_companion, ///< Mach-O dSYM companion file
+ coff_object, ///< COFF object file
+ pecoff_executable ///< PECOFF executable file
+ };
+
+ bool is_object() const {
+ return v_ == unknown ? false : true;
+ }
+
+ file_magic() : v_(unknown) {}
+ file_magic(_ v) : v_(v) {}
+ explicit file_magic(int v) : v_(_(v)) {}
+ operator int() const {return v_;}
+
+private:
+ int v_;
};
/// @}
/// @brief Do paths represent the same thing?
///
+/// assert(status_known(A) || status_known(B));
+///
/// @param A Input path A.
/// @param B Input path B.
/// @param result Set to true if stat(A) and stat(B) have the same device and
/// platform specific error_code.
error_code equivalent(const Twine &A, const Twine &B, bool &result);
+/// @brief Simpler version of equivalent for clients that don't need to
+/// differentiate between an error and false.
+inline bool equivalent(const Twine &A, const Twine &B) {
+ bool result;
+ return !equivalent(A, B, result) && result;
+}
+
/// @brief Get file size.
///
/// @param path Input path.
/// platform specific error_code.
error_code status(const Twine &path, file_status &result);
+/// @brief Modifies permission bits on a file
+///
+/// @param path Input path.
+/// @results errc::success if permissions have been changed, otherwise a
+/// platform specific error_code.
+error_code permissions(const Twine &path, perms prms);
+
/// @brief Is status available?
///
/// @param path Input path.
/// @results errc::success if result_{fd,path} have been successfully set,
/// otherwise a platform specific error_code.
error_code unique_file(const Twine &model, int &result_fd,
- SmallVectorImpl<char> &result_path,
- bool makeAbsolute = true);
+ SmallVectorImpl<char> &result_path,
+ bool makeAbsolute = true, unsigned mode = 0600);
/// @brief Canonicalize path.
///
error_code get_magic(const Twine &path, uint32_t len,
SmallVectorImpl<char> &result);
+/// @brief Identify the type of a binary file based on how magical it is.
+file_magic identify_magic(StringRef magic);
+
/// @brief Get and identify \a path's type based on its content.
///
/// @param path Input path.
/// @param result Set to the type of file, or LLVMFileType::Unknown_FileType.
/// @results errc::success if result has been successfully set, otherwise a
/// platform specific error_code.
-error_code identify_magic(const Twine &path, LLVMFileType &result);
+error_code identify_magic(const Twine &path, file_magic &result);
/// @brief Get library paths the system linker uses.
///
error_code GetMainExecutable(const char *argv0, void *MainAddr,
SmallVectorImpl<char> &result);
+
+/// @brief Memory maps the contents of a file
+///
+/// @param path Path to file to map.
+/// @param file_offset Byte offset in file where mapping should begin.
+/// @param size_t Byte length of range of the file to map.
+/// @param map_writable If true, the file will be mapped in r/w such
+/// that changes to the mapped buffer will be flushed back
+/// to the file. If false, the file will be mapped read-only
+/// and the buffer will be read-only.
+/// @param result Set to the start address of the mapped buffer.
+/// @results errc::success if result has been successfully set, otherwise a
+/// platform specific error_code.
+error_code map_file_pages(const Twine &path, off_t file_offset, size_t size,
+ bool map_writable, void *&result);
+
+
+/// @brief Memory unmaps the contents of a file
+///
+/// @param base Pointer to the start of the buffer.
+/// @param size Byte length of the range to unmmap.
+/// @results errc::success if result has been successfully set, otherwise a
+/// platform specific error_code.
+error_code unmap_file_pages(void *base, size_t size);
+
+
+
/// @}
/// @name Iterators
/// @{
return *this;
}
- const directory_entry &operator*() const { return *State->Stack.top(); };
- const directory_entry *operator->() const { return &*State->Stack.top(); };
+ const directory_entry &operator*() const { return *State->Stack.top(); }
+ const directory_entry *operator->() const { return &*State->Stack.top(); }
// observers
/// Gets the current level. Starting path is at level 0.
projects / oota-llvm.git / blobdiff