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authorKazu Hirata <kazu@cs.umass.edu>2004-02-04 05:13:43 +0000
committerKazu Hirata <kazu@gcc.gnu.org>2004-02-04 05:13:43 +0000
commita4a4b1d36476aaa60ebd05db0dfd16145dc72338 (patch)
treece646f5c227e247e4200d85892382a8f5bb625d6 /libjava/java/sql/Timestamp.java
parentc3bf16ff7dec47581f450b1a486cfdf9d566927e (diff)
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config.gcc: Remove obsolete ports and configurations.
gcc/ * config.gcc: Remove obsolete ports and configurations. * config/linux-aout.h, config/netware.h, config/t-linux-gnulibc1, config/d30v/abi, config/d30v/d30v-protos.h, config/d30v/d30v.c, config/d30v/d30v.h, config/d30v/d30v.md, config/d30v/libgcc1.asm, config/d30v/t-d30v, config/dsp16xx/dsp16xx-modes.def, config/dsp16xx/dsp16xx-protos.h, config/dsp16xx/dsp16xx.c, config/dsp16xx/dsp16xx.h, config/dsp16xx/dsp16xx.md, config/i370/README, config/i370/i370-c.c, config/i370/i370-protos.h, config/i370/i370.c, config/i370/i370.h, config/i370/i370.md, config/i370/linux.h, config/i370/mvs.h, config/i370/oe.h, config/i370/t-i370, config/i386/freebsd-aout.h, config/i386/linux-aout.h, config/i386/moss.h, config/i386/netware.h, config/i386/svr3.ifile, config/i386/svr3dbx.h, config/i386/svr3gas.h, config/i386/svr3z.ifile, config/i386/t-udk, config/i386/udk.h, config/i386/vsta.h, config/i960/i960-c.c, config/i960/i960-coff.h, config/i960/i960-modes.def, config/i960/i960-protos.h, config/i960/i960.c, config/i960/i960.h, config/i960/i960.md, config/i960/rtems.h, config/i960/t-960bare, config/m68k/hp310.h, config/m68k/hp320.h, config/m68k/hp320base.h, config/m68k/m68kv4.h, config/m68k/netbsd.h, config/m68k/sgs.h, config/m68k/t-hp320: Remove. * doc/extend.texi, doc/install.texi, doc/invoke.texi, doc/md.texi: Remove mentions of obsolete ports. testsuite/ * gcc.dg/20020312-2.c, gcc.dg/builtin-inf-1.c, gcc.dg/sibcall-3.c, gcc.dg/sibcall-4.c, gcc.dg/cpp/assert4.c: Remove mentions of obsolete ports. From-SVN: r77216
Diffstat (limited to 'libjava/java/sql/Timestamp.java')
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/*
 * Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * You can also choose to distribute this program under the terms of
 * the Unmodified Binary Distribution Licence (as given in the file
 * COPYING.UBDL), provided that you have satisfied its requirements.
 */

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );

/**
 * @file
 *
 * EFI file protocols
 *
 */

#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <wchar.h>
#include <ipxe/image.h>
#include <ipxe/cpio.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Protocol/SimpleFileSystem.h>
#include <ipxe/efi/Protocol/BlockIo.h>
#include <ipxe/efi/Protocol/DiskIo.h>
#include <ipxe/efi/Protocol/LoadFile2.h>
#include <ipxe/efi/Guid/FileInfo.h>
#include <ipxe/efi/Guid/FileSystemInfo.h>
#include <ipxe/efi/efi_strings.h>
#include <ipxe/efi/efi_path.h>
#include <ipxe/efi/efi_file.h>

/** EFI media ID */
#define EFI_MEDIA_ID_MAGIC 0x69505845

/** Linux initrd fixed device path vendor GUID */
#define LINUX_INITRD_VENDOR_GUID					\
	{ 0x5568e427, 0x68fc, 0x4f3d,					\
	  { 0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68 } }

/** An EFI virtual file reader */
struct efi_file_reader {
	/** EFI file */
	struct efi_file *file;
	/** Position within virtual file */
	size_t pos;
	/** Output data buffer */
	void *data;
	/** Length of output data buffer */
	size_t len;
};

/** An EFI file */
struct efi_file {
	/** Reference count */
	struct refcnt refcnt;
	/** EFI file protocol */
	EFI_FILE_PROTOCOL file;
	/** EFI load file protocol */
	EFI_LOAD_FILE2_PROTOCOL load;
	/** Image (if any) */
	struct image *image;
	/** Filename */
	const char *name;
	/** Current file position */
	size_t pos;
	/**
	 * Read from file
	 *
	 * @v reader		File reader
	 * @ret len		Length read
	 */
	size_t ( * read ) ( struct efi_file_reader *reader );
};

/** An EFI fixed device path file */
struct efi_file_path {
	/** EFI file */
	struct efi_file file;
	/** Device path */
	EFI_DEVICE_PATH_PROTOCOL *path;
	/** EFI handle */
	EFI_HANDLE handle;
};

static struct efi_file efi_file_root;
static struct efi_file_path efi_file_initrd;

/**
 * Free EFI file
 *
 * @v refcnt		Reference count
 */
static void efi_file_free ( struct refcnt *refcnt ) {
	struct efi_file *file =
		container_of ( refcnt, struct efi_file, refcnt );

	image_put ( file->image );
	free ( file );
}

/**
 * Get EFI file name (for debugging)
 *
 * @v file		EFI file
 * @ret name		Name
 */
static const char * efi_file_name ( struct efi_file *file ) {

	return ( file == &efi_file_root ? "<root>" : file->name );
}

/**
 * Find EFI file image
 *
 * @v name		Filename
 * @ret image		Image, or NULL
 */
static struct image * efi_file_find ( const char *name ) {
	struct image *image;

	/* Find image */
	for_each_image ( image ) {
		if ( strcasecmp ( image->name, name ) == 0 )
			return image;
	}

	return NULL;
}

/**
 * Get length of EFI file
 *
 * @v file		EFI file
 * @ret len		Length of file
 */
static size_t efi_file_len ( struct efi_file *file ) {
	struct efi_file_reader reader;

	/* If this is the root directory, then treat as length zero */
	if ( ! file->read )
		return 0;

	/* Initialise reader */
	reader.file = file;
	reader.pos = 0;
	reader.data = NULL;
	reader.len = 0;

	/* Perform dummy read to determine file length */
	file->read ( &reader );

	return reader.pos;
}

/**
 * Read chunk of EFI file
 *
 * @v reader		EFI file reader
 * @v data		Input data, or UNULL to zero-fill
 * @v len		Length of input data
 * @ret len		Length of output data
 */
static size_t efi_file_read_chunk ( struct efi_file_reader *reader,
				    userptr_t data, size_t len ) {
	struct efi_file *file = reader->file;
	size_t offset;

	/* Calculate offset into input data */
	offset = ( file->pos - reader->pos );

	/* Consume input data range */
	reader->pos += len;

	/* Calculate output length */
	if ( offset < len ) {
		len -= offset;
	} else {
		len = 0;
	}
	if ( len > reader->len )
		len = reader->len;

	/* Copy or zero output data */
	if ( data ) {
		copy_from_user ( reader->data, data, offset, len );
	} else {
		memset ( reader->data, 0, len );
	}

	/* Consume output buffer */
	file->pos += len;
	reader->data += len;
	reader->len -= len;

	return len;
}

/**
 * Read from image-backed file
 *
 * @v reader		EFI file reader
 * @ret len		Length read
 */
static size_t efi_file_read_image ( struct efi_file_reader *reader ) {
	struct efi_file *file = reader->file;
	struct image *image = file->image;

	/* Read from file */
	return efi_file_read_chunk ( reader, image->data, image->len );
}

/**
 * Read from magic initrd file
 *
 * @v reader		EFI file reader
 * @ret len		Length read
 */
static size_t efi_file_read_initrd ( struct efi_file_reader *reader ) {
	struct efi_file *file = reader->file;
	struct cpio_header cpio;
	struct image *image;
	const char *name;
	size_t pad_len;
	size_t cpio_len;
	size_t name_len;
	size_t len;

	/* Read from file */
	len = 0;
	for_each_image ( image ) {

		/* Pad to alignment boundary */
		pad_len = ( ( -reader->pos ) & ( INITRD_ALIGN - 1 ) );
		if ( pad_len ) {
			DBGC ( file, "EFIFILE %s [%#08zx,%#08zx) pad\n",
			       efi_file_name ( file ), reader->pos,
			       ( reader->pos + pad_len ) );
		}
		len += efi_file_read_chunk ( reader, UNULL, pad_len );

		/* Read CPIO header, if applicable */
		cpio_len = cpio_header ( image, &cpio );
		if ( cpio_len ) {
			name = cpio_name ( image );
			name_len = cpio_name_len ( image );
			pad_len = ( cpio_len - sizeof ( cpio ) - name_len );
			DBGC ( file, "EFIFILE %s [%#08zx,%#08zx) %s header\n",
			       efi_file_name ( file ), reader->pos,
			       ( reader->pos + cpio_len ), image->name );
			len += efi_file_read_chunk ( reader,
						     virt_to_user ( &cpio ),
						     sizeof ( cpio ) );
			len += efi_file_read_chunk ( reader,
						     virt_to_user ( name ),
						     name_len );
			len += efi_file_read_chunk ( reader, UNULL, pad_len );
		}

		/* Read file data */
		DBGC ( file, "EFIFILE %s [%#08zx,%#08zx) %s\n",
		       efi_file_name ( file ), reader->pos,
		       ( reader->pos + image->len ), image->name );
		len += efi_file_read_chunk ( reader, image->data, image->len );
	}

	return len;
}

/**
 * Open fixed file
 *
 * @v file		EFI file
 * @v wname		Filename
 * @v new		New EFI file
 * @ret efirc		EFI status code
 */
static EFI_STATUS efi_file_open_fixed ( struct efi_file *file,
					const wchar_t *wname,
					EFI_FILE_PROTOCOL **new ) {

	/* Increment reference count */
	ref_get ( &file->refcnt );

	/* Return opened file */
	*new = &file->file;

	DBGC ( file, "EFIFILE %s opened via %ls\n",
	       efi_file_name ( file ), wname );
	return 0;
}

/**
 * Associate file with image
 *
 * @v file		EFI file
 * @v image		Image
 */
static void efi_file_image ( struct efi_file *file, struct image *image ) {

	file->image = image;
	file->name = image->name;
	file->read = efi_file_read_image;
}

/**
 * Open image-backed file
 *
 * @v image		Image
 * @v wname		Filename
 * @v new		New EFI file
 * @ret efirc		EFI status code
 */
static EFI_STATUS efi_file_open_image ( struct image *image,
					const wchar_t *wname,
					EFI_FILE_PROTOCOL **new ) {
	struct efi_file *file;

	/* Allocate and initialise file */
	file = zalloc ( sizeof ( *file ) );
	if ( ! file )
		return EFI_OUT_OF_RESOURCES;
	ref_init ( &file->refcnt, efi_file_free );
	memcpy ( &file->file, &efi_file_root.file, sizeof ( file->file ) );
	memcpy ( &file->load, &efi_file_root.load, sizeof ( file->load ) );
	efi_file_image ( file, image_get ( image ) );

	/* Return opened file */
	*new = &file->file;

	DBGC ( file, "EFIFILE %s opened via %ls\n",
	       efi_file_name ( file ), wname );
	return 0;
}

/**
 * Open file
 *
 * @v this		EFI file
 * @ret new		New EFI file
 * @v wname		Filename
 * @v mode		File mode
 * @v attributes	File attributes (for newly-created files)
 * @ret efirc		EFI status code
 */
static EFI_STATUS EFIAPI
efi_file_open ( EFI_FILE_PROTOCOL *this, EFI_FILE_PROTOCOL **new,
		CHAR16 *wname, UINT64 mode, UINT64 attributes __unused ) {
	struct efi_file *file = container_of ( this, struct efi_file, file );
	char buf[ wcslen ( wname ) + 1 /* NUL */ ];
	struct image *image;
	char *name;

	/* Convert name to ASCII */
	snprintf ( buf, sizeof ( buf ), "%ls", wname );
	name = buf;

	/* Initial '\' indicates opening from the root directory */
	while ( *name == '\\' ) {
		file = &efi_file_root;
		name++;
	}

	/* Allow root directory itself to be opened */
	if ( ( name[0] == '\0' ) || ( name[0] == '.' ) )
		return efi_file_open_fixed ( &efi_file_root, wname, new );

	/* Fail unless opening from the root */
	if ( file != &efi_file_root ) {
		DBGC ( file, "EFIFILE %s is not a directory\n",
		       efi_file_name ( file ) );
		return EFI_NOT_FOUND;
	}

	/* Fail unless opening read-only */
	if ( mode != EFI_FILE_MODE_READ ) {
		DBGC ( file, "EFIFILE %s cannot be opened in mode %#08llx\n",
		       name, mode );
		return EFI_WRITE_PROTECTED;
	}

	/* Allow registered images to be opened */
	if ( ( image = efi_file_find ( name ) ) != NULL )
		return efi_file_open_image ( image, wname, new );

	/* Allow magic initrd to be opened */
	if ( strcasecmp ( name, efi_file_initrd.file.name ) == 0 ) {
		return efi_file_open_fixed ( &efi_file_initrd.file, wname,
					     new );
	}

	DBGC ( file, "EFIFILE %ls does not exist\n", wname );
	return EFI_NOT_FOUND;
}

/**
 * Close file
 *
 * @v this		EFI file
 * @ret efirc		EFI status code
 */
static EFI_STATUS EFIAPI efi_file_close ( EFI_FILE_PROTOCOL *this ) {
	struct efi_file *file = container_of ( this, struct efi_file, file );

	/* Close file */
	DBGC ( file, "EFIFILE %s closed\n", efi_file_name ( file ) );
	ref_put ( &file->refcnt );

	return 0;
}

/**
 * Close and delete file
 *
 * @v this		EFI file
 * @ret efirc		EFI status code
 */
static EFI_STATUS EFIAPI efi_file_delete ( EFI_FILE_PROTOCOL *this ) {
	struct efi_file *file = container_of ( this, struct efi_file, file );