* conf/i386-pc.rmk (pxeboot_img_LDFLAGS): The text address should
be 0x7C00 instead of 0x8000.
* boot/i386/pc/pxeboot.S: Rewritten.
* kern/i386/pc/startup.S (gate_a20_try_bios): No need to specify
EXT_C.
(gate_a20_check_state): Read a byte from 0x108000. Invert the
result.
* conf/i386-pc.rmk (pkgdata_IMAGE): Add pxeboot.img.
(pxeboot_img_SOURCES): New variable.
(pxeboot_img_ASFLAGS): Likewise.
(pxeboot_img_LDFLAGS): Likewise.
* boot/i386/pc/pxeboot.S: New file. Based on pxeloader.S from
GRUB Legacy and boot.S. Adopted for GRUB 2 by lode leroy
<lode_leroy@hotmail.com>.
All symbols prefixed with PUPA_ and pupa_ are renamed to GRUB_
and grub_, respectively. Because the conversion is trivial and
mechanical, I omit the details here. Please refer to the CVS
if you need more information.
* include/i386/pc/util/biosdisk.h: New file.
* util/i386/pc/biosdisk.c: Likewise.
* util/i386/pc/pupa-setup.c: Likewise.
* Makefile.in (INCLUDE_DISTFILES): Added
include/pupa/i386/pc/util/biosdisk.h.
(UTIL_DISTFILES): Added biosdisk.c and pupa-setup.c under the
directory util/i386/pc.
(install-local): Added a rule for sbin_UTILITIES.
(uninstall): Likewise.
* util/i386/pc/pupa-mkimage.c (usage): Fix a typo in the doc.
* util/misc.c (xrealloc): New function.
(pupa_malloc): Likewise.
(pupa_free): Likewise.
(pupa_realloc): Likewise.
(pupa_stop): Likewise.
(pupa_putchar): Likewise.
* kern/disk.c (pupa_disk_read): Prevent L from underflowing.
* include/pupa/util/misc.h (xrealloc): Declared.
* include/pupa/i386/pc/boot.h (PUPA_BOOT_MACHINE_BPB_START): New
macro.
(PUPA_BOOT_MACHINE_BPBEND): Renamed to ...
(PUPA_BOOT_MACHINE_BPB_END): ... this.
* include/pupa/fs.h [PUPA_UTIL] (pupa_fat_init): Declared.
[PUPA_UTIL] (pupa_fat_fini): Likewise.
* fs/fat.c [PUPA_UTIL] (pupa_fat_init): Defined. Maybe a better
way should be implemented.
[PUPA_UTIL] (pupa_fat_fini): Likewise.
* disk/i386/pc/biosdisk.c (pupa_biosdisk_call_hook): Increase
the size of NAME for safety.
(pupa_biosdisk_iterate): Search hard disks to 0x90 instead of
0x88.
* conf/i386-pc.rmk (sbin_UTILITIES): New variable.
(pupa_setup_SOURCES): Likewise.
* genmk.rb (Utility#rule): Add $(BUILD_CFLAGS) into the rules.
