* stage2/builtins.c (install_func): If DEST_DRIVE is a hard
disk, enable the workaround in Stage 1 by replacing the jmp
with double nop's.
* stage1/stage1.h (STAGE1_BOOT_DRIVE_CHECK): New macro.
(STAGE1_BOOT_DRIVE_MASK): Removed.
* stage1/stage1.S (boot_drive_check): New label. This implements
a different workaround for buggy BIOSes which don't pass boot
drive correctly. This is effective for BIOSes which pass a value
without the seventh bit (0x80).
(boot_drive_mask): Removed.
* stage2/char_io.c [!GRUB_UTIL] (memcpy): New function. It is
defined as an alias of grub_memmove. This is copied from GRUB 2.
* stage2/disk_io.c (print_completions): Simplified conditionals
to make it easier to edit the file with Emacs.
Added support for (cd).
(set_device): Likewise.
* stage2/common.c (init_bios_info): Check if BOOT_DRIVE is a
CDROM drive. If it is true, set CDROM_DRIVE to BOOT_DRIVE.
(cdrom_drive): New variable.
From Leonid Lisovskiy <lly@pisem.net>:
* stage2/start_eltorito.S: New file.
* stage2/stage2.c (run_menu): Use GRUB_INVALID_DRIVE instead of
0xFF.
* stage2/shared.h (STAGE2_ID_ISO9660_STAGE1_5): New macro.
[FSYS_ISO9660] (STAGE2_ID): Set to STAGE2_ID_ISO9660_STAGE1_5.
(struct geometry): Added a new member ``sector_size''.
(BIOSDISK_FLAG_CDROM): New macro.
(cdrom_drive): Declared.
* stage2/fsys_iso9660.c: New file.
* stage2/iso9660.h: Likewise.
* stage2/filesys.h (FSYS_ISO9660_NUM): New macro.
[FSYS_ISO9660] (iso9660_mount): Declared.
[FSYS_ISO9660] (iso9660_read): Likewise.
[FSYS_ISO9660] (iso9660_dir): Likewise.
(NUM_FSYS): Added FSYS_ISO9660_NUM.
* stage2/disk_io.c (fsys_table) [FSYS_ISO9660]: Added iso9660.
(current_drive): Use GRUB_INVALID_DRIVE.
(log2): New function.
(rawread): Use BUF_GEOM.SECTOR_SIZE instead of SECTOR_SIZE.
Change the type of BUFADDR from int to char *.
Use a virtual track to make sure that one track fits in the
buffer.
(sane_partition): Allow CURRENT_DRIVE to be CDROM_DRIVE, because
a bios drive for a CD-ROM is often assigned to greater than
0x88.
(set_device): Use GRUB_INVALID_DRIVE instead of 0xFF.
(setup_part): Likewise.
* stage2/cmdline.c (init_cmdline): Use GRUB_INVALID_DRIVE.
* stage2/builtins.c (install_func): Use GRUB_INVALID_DRIVE.
(setup_func): Added iso9660_stage1_5.
* stage2/bios.c (biosdisk): Don't fall back to the CHS mode
if the drive is a CDROM.
(get_cdinfo): New function.
(get_diskinfo): Call get_cdinfo if the drive is greater than or
equal to 0x88 or the drive supports LBA.
Set the sector size to SECTOR_SIZE if it is not a CD-ROM.
* stage2/asm.S (biosdisk_int13_extensions): Take a word
argument AX instead of a byte argument AH.
(get_diskinfo_int13_extensions): Removed.
* stage2/Makefile.am (noinst_HEADERS): Added iso9660.h.
(libgrub_a_SOURCES): Added fsys_iso9660.c.
(libgrub_a_CFLAGS): Added -DFSYS_ISO9660=1.
(pkgdata_DATA): Added iso9660_stage1_5 and stage2_eltorito.
(noinst_PROGRAMS): Added iso9660_stage1_5.exec and
start_eltorito.exec.
(noinst_DATA): Added start_eltorito.
(pre_stage2_exec_SOURCES): Added fsys_iso9660.c.
(START_ELTORITO_LINK): New variable.
(start_eltorito_exec_SOURCES): Likewise.
(start_eltorito_exec_CCASFLAGS): Likewise.
(start_eltorito_exec_LDFLAGS): Likewise.
(start_eltorito_exec-start.$(OBJEXT)): New dependency.
(stage2_eltorito): New target.
(iso9660_stage1_5_exec_SOURCES): New variable.
(iso9660_stage1_5_exec_CFLAGS): Likewise.
(iso9660_stage1_5_exec_CCASFLAGS): Likewise.
(iso9660_stage1_5_exec_LDFLAGS): Likewise.
* stage1/stage1.h (GRUB_INVALID_DRIVE): New macro.
* stage1/stage1.S (boot_drive): Use the macro GRUB_INVALID_DRIVE.
(real_start): Likewise.
* lib/device.c (get_drive_geometry): Set GEOM->SECTOR_SIZE to
SECTOR_SIZE by default.
* configure.ac (--disable-iso9660): New option.
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.
* stage1/stage1.S: Don't call INT 13, AH=48H, because it is
difficult to call this function with the workaround implemented
in the previous change due to the size limit of Stage 1.
(lba_mode) [NO_BUGGY_BIOS_IN_THE_WORLD]: Don't check the
geometry explicitly. This shouldn't be harmful, as INT 13,
AH=42H should take care of it, and if you cannot read Stage 2
even with LBA because of a geometry problem, you can never read
it.
* stage2/start.S (lba_mode) [NO_BUGGY_BIOS_IN_THE_WORLD]:
Likewise.
assignments received by the FSF.
Jason Thomas was added.
Erich Stefan Boleyn was moved into those who assigned their copyrights.
Gordon Matzigkeit was moved into the others, because he still wasn't listed
in fencepost.gnu.org:/gd/gnuorg/copyright.list.
The remaining problem is that we haven't had copyright assignments of
VaX#8, Heiko Schroeder and Gordon Matzigkeit. As for the first two, Erich
is now trying to contact them by proxy. So I'm just waiting.
As for Gordon.... oh, what are you doing, Gordon?! Hurry up, please!
okuji