changelog

Linux启动程序grub的源码分析与实现；

	From Adam Lackorzynski <[e-mail]>:
	* stage2/shared.h (KEY_NPAGE): Changed to 0x5100.
	(KEY_PPAGE): Changed to 0x4900.

2003-03-19  Yoshinori K. Okuji  <[e-mail]>

	* stage2/boot.c (load_image): Check if DATA_LEN plus SECTOR_SIZE
	is less than or equal to MULTIBOOT_SEARCH, instead of if
	DATA_LEN is less than or equal to MULTIBOOT_SEARCH.
	Reported by Neelkanth Natu <[e-mail]>.

2003-03-10  Yoshinori K. Okuji  <[e-mail]>

	From Andrew Walrond <[e-mail]>:
	* stage2/fsys_reiserfs.c (struct reiserfs_journal_header):
	Remove an unnecessary ``long''.

2003-03-10  Yoshinori K. Okuji  <[e-mail]>

	From Tilmann Bubeck:
	* stage2/builtins.c [SUPPORT_SERIAL] (terminfo_func): Unescape
	arguments before copying them, and escape sequences before
	printing them.
	* stage2/terminfo.h (TERMINFO_LEN): Changed to 40.

2003-02-20  Yoshinori K. Okuji  <[e-mail]>

	* util/grub-install.in (find_device): Fix the sed script.

2003-02-17  Yoshinori K. Okuji  <[e-mail]>

	* lib/device.c (check_device): If DEVICE is empty, just return
	1.
	(get_scsi_disk_name) [__QNXNTO__]: Make NAME empty, because SCSI
	disks are detected as IDE disks on QNX RTP.

	From Taketo Kabe <[e-mail]>:
	* lib/device.c (get_ide_disk_name) [__QNXNTO__]: Set NAME to
	"/dev/hdX".
	(get_floppy_disk_name) [__QNXNTO__]: Set NAME to "/dev/fdX".
	* stage2/mb_info.h (struct AddrRangeDesc): Specified with the
	attribute packed.
	* stage2/shared.h (struct mmar_desc): Likewise.

2003-01-29  Yoshinori K. Okuji  <[e-mail]>

	From Ilguiz Latypov:
	* configure.in: Fix a syntax error in a sed script.
	* stage2/bios.c (get_diskinfo): PhoenixBIOS 4.0 Revision 6.0 
	for ZF Micro might understand the greater buffer size for the
	"get drive parameters" int 0x13 call in its own way.  
	Supposedly the BIOS assumes even bigger space is available and
	thus corrupts the stack.  This is why we specify the exactly 
	necessary size of 0x42 bytes.

2003-01-25  Yoshinori K. Okuji  <[e-mail]>

	From Steven Dick <[e-mail]>:
	* stage2/pc_slice.h (PC_SLICE_TYPE_DELL_UTIL): New macro.
	(IS_PC_SLICE_TYPE_FAT): Recognize PC_SLIDE_TYPE_DELL_UTIL as
	well.

2003-01-25  Yoshinori K. Okuji  <[e-mail]>

	From Karsten Scheibler <[e-mail]>:
	* stage2/terminfo.c (term): Don't use a C99-style initializer.

2003-01-16  Yoshinori K. Okuji  <[e-mail]>

	From H.J. Lu <[e-mail]>:
	* stage2/disk_io.c (part_start): Use unsigned long to support
	large disks.
	(part_length): Likewise.
	* stage2/shared.h (part_start): Likewise.
	(part_length): Likewise.

2003-01-05  Yoshinori K. Okuji  <[e-mail]>

	* configure.in (CFLAGS): When the default CFLAGS is used,
	eliminate -O2 and -g from CFLAGS, because Autoconf may
	automatically set CFLAGS to them.

2003-01-02  Yoshinori K. Okuji  <[e-mail]>

	From Jeremy Katz:
	* configure.in: Support building on x86_64 with gcc -m32.

2003-01-02  Yoshinori K. Okuji  <[e-mail]>

	From Jeremy Katz:
	* stage2/fsys_ext2fs.c (ext2fs_dir): Initialize STR_CHK to shut
	up GCC.
	* stage2/fsys_minix.c (minix_dir): Likewise.

2002-12-21  Yoshinori K. Okuji  <[e-mail]>

	* stage2/asm.S (gateA20): First, try a BIOS call (INT 15H,
	AX=2400/2401). Use the keyboard controller, only if that failed.

2002-12-11  Yoshinori K. Okuji  <[e-mail]>

	Add a workaround for buggy BIOSes which don't pass boot drive
	correctly. The idea is that GRUB forces the fixed disk flag
	when booted from a hard disk. When BIOS loads GRUB directly,
	the boot drive must be either of 0x00 and 0x80, so this should
	work, if those BIOSes always pass zero to %dl. AFAIK, this
	assumption is always correct.

	* stage2/builtins.c (install_func): Store the fixed disk flag of
	the destination drive in BOOT_DRIVE_MASK in Stage 1.

	* stage1/stage1.h (STAGE1_BOOT_DRIVE_MASK): New macro.

	* stage1/stage1.S (boot_drive_mask): New variable. It is or'ed
	to %dl.

2002-12-09  Yoshinori K. Okuji  <[e-mail]>

	* stage2/char_io.c (init_page): Change the software name from
	"GRUB" to "GNU GRUB". This was inaccurate. Reported by Ciaran
	O'Riordan <[e-mail]>.

2002-12-04  Yoshinori K. Okuji  <[e-mail]>

	* stage2/builtins.c (embed_func): When checking if the disk can
	store Stage 1.5, check every partition, if it isn't empty.

2002-12-04  Yoshinori K. Okuji  <[e-mail]>

	* stage2/stage2.c (print_entry): Put a right arrow, if the entry
	is longer than 71 characters. Reported by Pavel Roskin.

2002-12-04  Yoshinori K. Okuji  <[e-mail]>

	* stage2/disk_io.c (set_device): If '(n' is given, add 'd' into
	DEVICE. Reported by Pavel Roskin.

2002-12-03  Yoshinori K. Okuji  <[e-mail]>

	Change the terminal structure a bit, to turn the cursor state
	explicitly. Suggested by Pavel Roskin.
	
	* stage2/term.h (struct term_entry): Remove the member
	`nocursor' and add `setcursor'.
	[!STAGE1_5] (console_setcursor): New prototype.
	[SUPPORT_HERCULES] (hercules_setcursor): Likewise.
	[!STAGE1_5] (console_nocursor): Removed.
	[SUPPORT_HERCULES] (hercules_nocursor): Likewise.

	* stage2/stage2.c (run_menu): Call setcursor instead of
	nocursor.
	Call setcursor with 1 before starting a boot entry.

	* stage2/shared.h (nocursor): Removed.
	(setcursor): New prototype.

	* stage2/hercules.c (herc_cursor_state): New variable.
	(herc_turn_cursor): Removed.
	(hercules_nocursor): Likewise.
	(hercules_setcursor): New function.

	* stage2/char_io.c (get_cmdline): Turn on the cursor at the
	beginning, and restore it before returning.
	(nocursor): Removed.
	(setcursor): New function.

	* stage2/asm.S (console_cursor_state): New variable.
	(console_cursor_shape): Likewise.
	(console_setcursor): New function.
	(console_nocursor): Removed.

	* grub/asmstub.c (console_setcursor): New function.
	(hercules_setcursor): Likewise.
	(console_nocursor): Removed.
	(hercules_nocursor): Likewise.

2002-12-03  Yoshinori K. Okuji  <[e-mail]>

	* docs/grub.texi (terminfo): Fix a misleading English sentence.
	Reported by Pavel Roskin.
	* stage2/builtins.c (builtin_terminfo): Likewise.

2002-12-01  Yoshinori K. Okuji  <[e-mail]>

	From Alexander Langer <[e-mail]>:
	* stage2/freebsd.h (RB_GDB): New macro.
	(RB_MUTE): Likewise.
	(RB_MULTIPLE): Likewise.

	* stage2/boot.c (bsd_boot): Set the bits of RB_MULTIPLE, RB_GDB
	and RB_MUTE when "-D", "-g" and "-m" are specified,
	respectively.

2002-12-01  Yoshinori K. Okuji  <[e-mail]>

	* docs/grub.texi (Reporting bugs): Specify the project page of
	the BTS instead of the BTS itself.

2002-11-30  Yoshinori K. Okuji  <[e-mail]>

	* docs/Makefile.am (man_MANS): Added grub-terminfo.8.
	($(srcdir)/grub_terminfo.8): New target.
	* utils/grub-terminfo.in: New file.
	* util/Makefile.am (sbin_SCRIPTS): Added grub-terminfo.
	* configure.in (AC_OUTPUT): Added util/grub-terminfo.

	* docs/grub.texi (terminfo): New subsection.
	(Invoking grub-terminfo): New chapter.

	From Tilmann Bubeck <[e-mail]>:
	* stage2/Makefile.am (noinst_HEADERS): Added terminfo.h and
	tparm.h.
	(libgrub_a_SOURCES): Added terminfo.c and tparm.c.
	(pre_stage2_exe_SOURCES): Likewise.
	* stage2/terminfo.c: New file.
	* stage2/terminfo.h: Likewise.
	* stage2/tparm.c: Likewise.
	* stage2/tparm.h: Likewise.
	* stage2/stage2.c (get_line_from_config): Fix handling of
	backslashes.
	* stage2/char_io.c (grub_putstr): New function.
	(grub_printf): Use grub_putstr.
	(substring): Add const into both arguments.
	* stage2/builtins.c [SUPPORT_SERIAL]: Include terminfo.h.
	[SUPPORT_SERIAL] (terminfo_func): New function.
	[SUPPORT_SERIAL] (builtin_terminfo): New variable.
	 (builtin_table) [SUPPORT_SERIAL]: Added a pointer to
	BUILTIN_TERMINFO.
	* stage2/serial.c (serial_gotoxy): Use ti_cursor_address.
	(serial_cls): Use ti_clear_screen.
	(serial_highlight): use ti_enter_standout_mode and
	ti_exit_standout_mode.

2002-11-30  Yoshinori K. Okuji  <[e-mail]>

	* stage2/disk_io.c (rawread): Make sure that SECTOR is valid.
	If not, set ERRNUM to ERR_GEOM and return zero. This check is
	critical when a partition table is corrupted.

2002-11-28  Yoshinori K. Okuji  <[e-mail]>

	* stage2/asm.S (console_cls): Write spaces to the entire screen
	instead of getting/setting the video mode, because this flickers
	the screen and is quite annoying, if using a LCD.

2002-11-15  Yoshinori K. Okuji  <[e-mail]>

	* docs/grub.texi (QNX): New subsection. Reported by
	Marian-Nicolae V. ION <[e-mail]>.

2002-10-28  Yoshinori K. Okuji  <[e-mail]>

	* grub/asmstub.c (console_translate_key): Deal with KEY_PPAGE
	and KEY_NPAGE.
	* stage2/serial.c (serial_translate_key_sequence): Added two new
	codes for Page Up and Page Down.
	* stage2/asm.S (translation_table): Added entries for KEY_PPAGE
	and KEY_NPAGE.
	* stage2/stage2.c (run_menu): Deal with Page Up and Page Down.
	Also recognize the right key for the selection of a boot entry.
	Suggested by Adam Lackorzynski <[e-mail]>.

2002-10-10  Jason Thomas  <[e-mail]>

	* stage2/builtins.c (setup_func): Added missing space to --force-lba
	option. Reported by Kenneth Crudup <[e-mail]>

2002-10-06  Yoshinori K. Okuji  <[e-mail]>

	* stage2/asm.S (gateA20): Output a dummy command (0xff), as a
	workaround for USB keyboard hanging problem. Suggested by
	Hidetoshi Nishimaki <[e-mail]>.

2002-10-06  Yoshinori K. Okuji  <[e-mail]>

	* configure.in (falign_loop_flag): New variable. Set to if GCC
	supports `-falign-*'. If true, use `-falign-jumps',
	`-falign-loops' and `-falign-functions' instead of
	`-malign-jumps', `-malign-loops' and `-malign-functions',
	because `-malign-*' are obsolete in GCC 3.x. Reported by Jeremy
	Katz.

2002-09-13  Yoshinori K. Okuji  <[e-mail]>

	* stage2/serial.c (fill_input_buf): Take a new argument NOWAIT.
	If NOWAIT is true, don't loop.
	All callers are changed.

2002-09-08  Yoshinori K. Okuji  <[e-mail]>

	* configure.in (--disable-serial): Fix a typo in the
	description.

2002-08-20  Jason Thomas <[e-mail]>

	Changed highlight state code for hercules, console and serial.
	The state was 0 - normal or 1 - highlight.
	The state is now defined using an enum called color_state.

	* stage2/term.h (color_state): New enum.
	(COLOR_STATE_STANDARD): Standard color to use when not using
	user defined.
	(COLOR_STATE_NORMAL): User defined normal color.
	(COLOR_STATE_HIGHLIGHT): User defined highlight color.
	(console_highlight): Renamed to console_setcolorstate.
	(serial_highlight): Renamed to serial_setcolorstate.
	(hercules_highlight): Renamed to hercules_setcolorstate.
	* stage2/hercules.c (herc_highlight_state): Removed.
	(herc_standard_color): New variable.
	(herc_color_state): Likewise.
	(herc_highlight): Renamed to herc_setcolorstate.
	(herc_setcolorstate): Added switch to handle new states.
	* stage2/console.c (console_highlight_state): Removed.
	(console_standard_color): New variable.
	(console_color_state): Likewise.
	(console_highlight): Renamed to console_setcolorstate.
	(console_setcolorstate): Added switch to handle new states.
	* stage2/serial.c (serial_highlight): Renamed to
	serial_setcolorstate.
	(serial_setcolorstate): Adjusted 'if' to suit new states.
	* grub/asmstub.c (console_highlight): Renamed to
	console_setcolorstate.
	(console_setcolorstate): Adjusted 'if' to suit new states.
	* stage2/stage2.c (print_entry): Set color states using new
	states.
	(print_border): Likewise.
	* stage2/stage2.c (run_menu): Reverse if (!) to if () for
	uniformitty.

2002-07-12  Yoshinori K. Okuji  <[e-mail]>

	* stage2/boot.c (load_image): Rewrite the Linux booting support
	radically. Now it should work even on a machine having, say,
	only 128KB, theoretically. Of course, GRUB itself doesn't work
	on such a system, though.
	(load_initrd): Initialize LH based on CUR_ADDR, because the
	location becomes dynamic.
	* stage2/shared.h (LINUX_MAX_SETUP_SECTS): Set to 64.
	(LINUX_HEAP_END_OFFSET): Set to (0x9000 - 0x200).
	(LINUX_STAGING_AREA): Removed.
	(LINUX_SETUP): Likewise.
	(LINUX_KERNEL): Likewise.
	(LINUX_KERNEL_MAXLEN): Likewise.
	(LINUX_SETUP_SEG): Likewise.
	(LINUX_INIT_SEG): Likewise.
	(LINUX_SETUP_STACK): Set to 0x9000.
	(LINUX_BZIMAGE_ADDR): New macro.
	(LINUX_ZIMAGE_ADDR): Likewise.
	(LINUX_OLD_REAL_MODE_ADDR): Likewise.
	(CL_MY_LOCATION): Removed.
	(CL_MY_END_ADDR): Likewise.
	(CL_BASE_ADDR): Likewise.
	(CL_MAGIC): Renamed to ...
	(LINUX_CL_MAGIC): ... this.
	(LINUX_CL_OFFSET): New macro.
	(LINUX_CL_END_OFFSET): Likewise.
	(LINUX_SETUP_MOVE_SIZE): Likewise.
	(struct linux_kernel_header): Change the type of the member
	"cmd_line_ptr" to char *.
	(linux_data_tmp_addr): Declared.
	(linux_data_real_addr): Likewise.
	* stage2/asm.S [!STAGE1_5] (linux_data_tmp_addr): New variable.
	[!STAGE1_5] (linux_data_real_addr): Likewise.
	[!STAGE1_5] (big_linux_boot): Copy the real mode part from
	LINUX_DATA_TMP_ADDR to LINUX_DATA_REAL_ADDR.
	* grub/asmstub.c (linux_data_tmp_addr): New variable.
	(linux_data_real_addr): Likewise.

2002-07-09  Yoshinori K. Okuji  <[e-mail]>
	
	From Mark Kettenis <[e-mail]>:
	* stage2/boot.c (load_image): Recognize newer FreeBSD kernels.
	* stage2/i386-elf.h (EI_OSABI): New macro.
	(EI_ABIVERSION): Likewise.
	(ELFOSABI_FREEBSD): Likewise.
	(EI_PAD): Set to 9.

2002-07-06  Yoshinori K. Okuji  <[e-mail]>

	* stage2/shared.h (boot_part_offset): Removed.