2003-01-31 Yoshinori K. Okuji <okuji@enbug.org>
* kern/i386/pc/lzo1x.S: New file. * util/i386/pc/pupa-mkimage.c: Include lzo1x.h. (compress_kernel): New variable. (generate_image): Heavily modified to support compressing a large part of the core image. * util/misc.c (pupa_util_read_image): Fix a file descriptor leak. (pupa_util_load_image): New function. * kern/i386/pc/startup.S: Include pupa/machine/kernel.h. (pupa_compressed_size): New variable. (codestart): Enable Gate A20 here. Decompress the compressed part of the core image. Rearrange the code to put functions and variables which are required for initialization in the non-compressed part. Include lzo1x.S. * kern/i386/pc/init.c (pupa_machine_init): Don't enable Gate A20 here. * include/pupa/util/misc.h (pupa_util_write_image): Declared. * include/pupa/i386/pc/kernel.h (PUPA_KERNEL_MACHINE_COMPRESSED_SIZE): New macro. (PUPA_KERNEL_MACHINE_INSTALL_DOS_PART): Increased by 4. (PUPA_KERNEL_MACHINE_INSTALL_BSD_PART): Likewise. (PUPA_KERNEL_MACHINE_PREFIX): Likewise. (PUPA_KERNEL_MACHINE_RAW_SIZE): New macro. * conf/i386-pc.rmk (pupa_mkimage_LDFLAGS): New variable. * genmk.rb (Image#rule): Put LDFLAGS at the end of a line. (Utility#rule): Likewise. * configure.ac: Check if LZO is available.
This commit is contained in:
okuji
parent
ce5bf700ca
commit
1f5ab4280a
40
ChangeLog
40
ChangeLog
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@ -1,3 +1,43 @@
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2003-01-31 Yoshinori K. Okuji <okuji@enbug.org>
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* kern/i386/pc/lzo1x.S: New file.
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* util/i386/pc/pupa-mkimage.c: Include lzo1x.h.
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(compress_kernel): New variable.
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(generate_image): Heavily modified to support compressing a
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large part of the core image.
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* util/misc.c (pupa_util_read_image): Fix a file descriptor
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leak.
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(pupa_util_load_image): New function.
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* kern/i386/pc/startup.S: Include pupa/machine/kernel.h.
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(pupa_compressed_size): New variable.
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(codestart): Enable Gate A20 here.
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Decompress the compressed part of the core image.
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Rearrange the code to put functions and variables which are
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required for initialization in the non-compressed part.
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Include lzo1x.S.
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* kern/i386/pc/init.c (pupa_machine_init): Don't enable Gate A20
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here.
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* include/pupa/util/misc.h (pupa_util_write_image): Declared.
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* include/pupa/i386/pc/kernel.h
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(PUPA_KERNEL_MACHINE_COMPRESSED_SIZE): New macro.
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(PUPA_KERNEL_MACHINE_INSTALL_DOS_PART): Increased by 4.
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(PUPA_KERNEL_MACHINE_INSTALL_BSD_PART): Likewise.
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(PUPA_KERNEL_MACHINE_PREFIX): Likewise.
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(PUPA_KERNEL_MACHINE_RAW_SIZE): New macro.
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* conf/i386-pc.rmk (pupa_mkimage_LDFLAGS): New variable.
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* genmk.rb (Image#rule): Put LDFLAGS at the end of a line.
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(Utility#rule): Likewise.
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* configure.ac: Check if LZO is available.
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2003-01-20 Yoshinori K. Okuji <okuji@enbug.org>
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* include/pupa/normal.h: New file.
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1
INSTALL
1
INSTALL
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@ -15,6 +15,7 @@ configuring the PUPA.
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* GNU Make
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* GNU binutils 2.9.1.0.23 or later
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* Other standard GNU/Unix tools
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* LZO 1.02 or later
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If you'd like to develop PUPA, these below are also required.
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6
NEWS
6
NEWS
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@ -15,6 +15,12 @@ New in 0.7:
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* Linux support is added. Initrd is not support yet.
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* Reduce the size of a core image significantly by compressing a large
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part of the core image and decompressing itself at boot time. The
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currently used algorithm is LZO (more precisely, LZO1X-999). So you
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have to install LZO to build PUPA. See
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<http://www.oberhumer.com/opensource/lzo/>, for more information.
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New in 0.6 - 2002-12-27, Yoshinori K. Okuji:
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4
THANKS
4
THANKS
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@ -9,8 +9,8 @@ generally assist in the PUPA maintainership process:
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NIIBE Yutaka <gniibe@m17n.org>
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Tsuneyoshi Yasuo <tuneyoshi@naic.co.jp>
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Also, we thank the projects GNU GRUB and GNU Automake. Some code were
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stolen from them.
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Also, we thank the projects GNU GRUB, GNU Automake and LZO. Some code
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were stolen from them.
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This project is supported by Information-technology Promotion Agency,
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Japan.
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@ -15,7 +15,7 @@ boot.img: boot.exec
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$(OBJCOPY) -O binary -R .note -R .comment $< $@
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boot.exec: boot_img-boot_i386_pc_boot.o
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$(CC) $(LDFLAGS) $(boot_img_LDFLAGS) -o $@ $^
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$(CC) -o $@ $^ $(LDFLAGS) $(boot_img_LDFLAGS)
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boot_img-boot_i386_pc_boot.o: boot/i386/pc/boot.S
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$(CC) -Iboot/i386/pc -I$(srcdir)/boot/i386/pc $(CPPFLAGS) -DASM_FILE=1 $(ASFLAGS) $(boot_img_ASFLAGS) -c -o $@ $<
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@ -37,7 +37,7 @@ diskboot.img: diskboot.exec
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$(OBJCOPY) -O binary -R .note -R .comment $< $@
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diskboot.exec: diskboot_img-boot_i386_pc_diskboot.o
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$(CC) $(LDFLAGS) $(diskboot_img_LDFLAGS) -o $@ $^
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$(CC) -o $@ $^ $(LDFLAGS) $(diskboot_img_LDFLAGS)
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diskboot_img-boot_i386_pc_diskboot.o: boot/i386/pc/diskboot.S
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$(CC) -Iboot/i386/pc -I$(srcdir)/boot/i386/pc $(CPPFLAGS) -DASM_FILE=1 $(ASFLAGS) $(diskboot_img_ASFLAGS) -c -o $@ $<
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@ -65,7 +65,7 @@ kernel.img: kernel.exec
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$(OBJCOPY) -O binary -R .note -R .comment $< $@
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kernel.exec: kernel_img-kern_i386_pc_startup.o kernel_img-kern_main.o kernel_img-kern_device.o kernel_img-kern_disk.o kernel_img-kern_dl.o kernel_img-kern_file.o kernel_img-kern_fs.o kernel_img-kern_err.o kernel_img-kern_misc.o kernel_img-kern_mm.o kernel_img-kern_loader.o kernel_img-kern_rescue.o kernel_img-kern_term.o kernel_img-kern_i386_dl.o kernel_img-kern_i386_pc_init.o kernel_img-disk_i386_pc_partition.o kernel_img-disk_i386_pc_biosdisk.o kernel_img-term_i386_pc_console.o kernel_img-symlist.o
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$(CC) $(LDFLAGS) $(kernel_img_LDFLAGS) -o $@ $^
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$(CC) -o $@ $^ $(LDFLAGS) $(kernel_img_LDFLAGS)
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kernel_img-kern_i386_pc_startup.o: kern/i386/pc/startup.S
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$(CC) -Ikern/i386/pc -I$(srcdir)/kern/i386/pc $(CPPFLAGS) -DASM_FILE=1 $(ASFLAGS) $(kernel_img_ASFLAGS) -c -o $@ $<
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@ -249,7 +249,7 @@ CLEANFILES += pupa-mkimage pupa_mkimage-util_i386_pc_pupa_mkimage.o pupa_mkimage
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MOSTLYCLEANFILES += pupa_mkimage-util_i386_pc_pupa_mkimage.d pupa_mkimage-util_misc.d pupa_mkimage-util_resolve.d
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pupa-mkimage: pupa_mkimage-util_i386_pc_pupa_mkimage.o pupa_mkimage-util_misc.o pupa_mkimage-util_resolve.o
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$(BUILD_CC) $(BUILD_LDFLAGS) $(pupa_mkimage_LDFLAGS) -o $@ $^
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$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(pupa_mkimage_LDFLAGS)
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pupa_mkimage-util_i386_pc_pupa_mkimage.o: util/i386/pc/pupa-mkimage.c
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$(BUILD_CC) -Iutil/i386/pc -I$(srcdir)/util/i386/pc $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DPUPA_UTIL=1 $(pupa_mkimage_CFLAGS) -c -o $@ $<
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@ -275,6 +275,7 @@ pupa_mkimage-util_resolve.d: util/resolve.c
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-include pupa_mkimage-util_resolve.d
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pupa_mkimage_LDFLAGS = -llzo
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# For pupa-setup.
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pupa_setup_SOURCES = util/i386/pc/pupa-setup.c util/i386/pc/biosdisk.c \
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@ -284,7 +285,7 @@ CLEANFILES += pupa-setup pupa_setup-util_i386_pc_pupa_setup.o pupa_setup-util_i3
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MOSTLYCLEANFILES += pupa_setup-util_i386_pc_pupa_setup.d pupa_setup-util_i386_pc_biosdisk.d pupa_setup-util_misc.d pupa_setup-kern_device.d pupa_setup-kern_disk.d pupa_setup-kern_file.d pupa_setup-kern_fs.d pupa_setup-kern_err.d pupa_setup-kern_misc.d pupa_setup-disk_i386_pc_partition.d pupa_setup-fs_fat.d
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pupa-setup: pupa_setup-util_i386_pc_pupa_setup.o pupa_setup-util_i386_pc_biosdisk.o pupa_setup-util_misc.o pupa_setup-kern_device.o pupa_setup-kern_disk.o pupa_setup-kern_file.o pupa_setup-kern_fs.o pupa_setup-kern_err.o pupa_setup-kern_misc.o pupa_setup-disk_i386_pc_partition.o pupa_setup-fs_fat.o
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$(BUILD_CC) $(BUILD_LDFLAGS) $(pupa_setup_LDFLAGS) -o $@ $^
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$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(pupa_setup_LDFLAGS)
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pupa_setup-util_i386_pc_pupa_setup.o: util/i386/pc/pupa-setup.c
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$(BUILD_CC) -Iutil/i386/pc -I$(srcdir)/util/i386/pc $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DPUPA_UTIL=1 $(pupa_setup_CFLAGS) -c -o $@ $<
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@ -381,7 +382,7 @@ CLEANFILES += genmoddep genmoddep-util_genmoddep.o
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MOSTLYCLEANFILES += genmoddep-util_genmoddep.d
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genmoddep: genmoddep-util_genmoddep.o
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$(BUILD_CC) $(BUILD_LDFLAGS) $(genmoddep_LDFLAGS) -o $@ $^
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$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(genmoddep_LDFLAGS)
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genmoddep-util_genmoddep.o: util/genmoddep.c
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$(BUILD_CC) -Iutil -I$(srcdir)/util $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DPUPA_UTIL=1 $(genmoddep_CFLAGS) -c -o $@ $<
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@ -50,6 +50,7 @@ noinst_UTILITIES = genmoddep
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# For pupa-mkimage.
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pupa_mkimage_SOURCES = util/i386/pc/pupa-mkimage.c util/misc.c \
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util/resolve.c
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pupa_mkimage_LDFLAGS = -llzo
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# For pupa-setup.
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pupa_setup_SOURCES = util/i386/pc/pupa-setup.c util/i386/pc/biosdisk.c \
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@ -22,6 +22,9 @@
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/* Define to 1 if you have the <inttypes.h> header file. */
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#undef HAVE_INTTYPES_H
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/* Define to 1 if you have the `lzo' library (-llzo). */
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#undef HAVE_LIBLZO
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/* Define to 1 if you have the <memory.h> header file. */
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#undef HAVE_MEMORY_H
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@ -3358,6 +3358,8 @@ tmp_CPPFLAGS="$CPPFLAGS"
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CC="$BUILD_CC"
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CFLAGS="$BUILD_CFLAGS"
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CPPFLAGS="$BUILD_CPPFLAGS"
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# Identify characteristics of the build architecture.
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echo "$as_me:$LINENO: checking whether byte ordering is bigendian" >&5
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echo $ECHO_N "checking whether byte ordering is bigendian... $ECHO_C" >&6
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if test "${ac_cv_c_bigendian+set}" = set; then
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@ -4682,6 +4684,150 @@ cat >>confdefs.h <<_ACEOF
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_ACEOF
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# Check LZO.
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echo "$as_me:$LINENO: checking for __lzo_init2 in -llzo" >&5
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echo $ECHO_N "checking for __lzo_init2 in -llzo... $ECHO_C" >&6
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if test "${ac_cv_lib_lzo___lzo_init2+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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ac_check_lib_save_LIBS=$LIBS
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LIBS="-llzo $LIBS"
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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/* Override any gcc2 internal prototype to avoid an error. */
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#ifdef __cplusplus
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extern "C"
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#endif
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/* We use char because int might match the return type of a gcc2
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builtin and then its argument prototype would still apply. */
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char __lzo_init2 ();
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#ifdef F77_DUMMY_MAIN
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# ifdef __cplusplus
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extern "C"
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# endif
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int F77_DUMMY_MAIN() { return 1; }
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#endif
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int
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main ()
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{
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__lzo_init2 ();
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -s conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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ac_cv_lib_lzo___lzo_init2=yes
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else
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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ac_cv_lib_lzo___lzo_init2=no
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fi
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rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
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LIBS=$ac_check_lib_save_LIBS
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fi
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echo "$as_me:$LINENO: result: $ac_cv_lib_lzo___lzo_init2" >&5
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echo "${ECHO_T}$ac_cv_lib_lzo___lzo_init2" >&6
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if test $ac_cv_lib_lzo___lzo_init2 = yes; then
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cat >>confdefs.h <<_ACEOF
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#define HAVE_LIBLZO 1
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_ACEOF
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LIBS="-llzo $LIBS"
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else
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{ { echo "$as_me:$LINENO: error: LZO library version 1.02 or later is required" >&5
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echo "$as_me: error: LZO library version 1.02 or later is required" >&2;}
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{ (exit 1); exit 1; }; }
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fi
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echo "$as_me:$LINENO: checking for lzo1x_999_compress" >&5
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echo $ECHO_N "checking for lzo1x_999_compress... $ECHO_C" >&6
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if test "${ac_cv_func_lzo1x_999_compress+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char lzo1x_999_compress (); below. */
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#include <assert.h>
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/* Override any gcc2 internal prototype to avoid an error. */
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#ifdef __cplusplus
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extern "C"
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#endif
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/* We use char because int might match the return type of a gcc2
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builtin and then its argument prototype would still apply. */
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char lzo1x_999_compress ();
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char (*f) ();
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#ifdef F77_DUMMY_MAIN
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# ifdef __cplusplus
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extern "C"
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# endif
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int F77_DUMMY_MAIN() { return 1; }
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#endif
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int
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main ()
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{
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/* The GNU C library defines this for functions which it implements
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to always fail with ENOSYS. Some functions are actually named
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something starting with __ and the normal name is an alias. */
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#if defined (__stub_lzo1x_999_compress) || defined (__stub___lzo1x_999_compress)
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choke me
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#else
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f = lzo1x_999_compress;
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#endif
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -s conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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ac_cv_func_lzo1x_999_compress=yes
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else
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echo "$as_me: failed program was:" >&5
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cat conftest.$ac_ext >&5
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ac_cv_func_lzo1x_999_compress=no
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fi
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rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
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fi
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echo "$as_me:$LINENO: result: $ac_cv_func_lzo1x_999_compress" >&5
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echo "${ECHO_T}$ac_cv_func_lzo1x_999_compress" >&6
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if test $ac_cv_func_lzo1x_999_compress = yes; then
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:
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else
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{ { echo "$as_me:$LINENO: error: LZO1X-999 must be enabled" >&5
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echo "$as_me: error: LZO1X-999 must be enabled" >&2;}
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{ (exit 1); exit 1; }; }
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fi
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CC="$tmp_CC"
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CFLAGS="$tmp_CFLAGS"
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CPPFLAGS="$tmp_CPPFLAGS"
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|
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11
configure.ac
11
configure.ac
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@ -1,6 +1,6 @@
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# Process this file with autoconf to produce a configure script.
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|
||||
# Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
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||||
# Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
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||||
#
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||||
# This configure.ac is free software; the author
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# gives unlimited permission to copy and/or distribute it,
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||||
|
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@ -117,9 +117,18 @@ tmp_CPPFLAGS="$CPPFLAGS"
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CC="$BUILD_CC"
|
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CFLAGS="$BUILD_CFLAGS"
|
||||
CPPFLAGS="$BUILD_CPPFLAGS"
|
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|
||||
# Identify characteristics of the build architecture.
|
||||
AC_C_BIGENDIAN
|
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AC_CHECK_SIZEOF(void *)
|
||||
AC_CHECK_SIZEOF(long)
|
||||
|
||||
# Check LZO.
|
||||
AC_CHECK_LIB(lzo, __lzo_init2, ,
|
||||
AC_MSG_ERROR([LZO library version 1.02 or later is required]))
|
||||
AC_CHECK_FUNC(lzo1x_999_compress, ,
|
||||
[AC_MSG_ERROR([LZO1X-999 must be enabled])])
|
||||
|
||||
CC="$tmp_CC"
|
||||
CFLAGS="$tmp_CFLAGS"
|
||||
CPPFLAGS="$tmp_CPPFLAGS"
|
||||
|
|
|
|||
6
genmk.rb
6
genmk.rb
|
|
@ -1,6 +1,6 @@
|
|||
#! /usr/bin/ruby -w
|
||||
#
|
||||
# Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
# Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
#
|
||||
# This genmk.rb is free software; the author
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
|
|
@ -60,7 +60,7 @@ MOSTLYCLEANFILES += #{deps_str}
|
|||
$(OBJCOPY) -O binary -R .note -R .comment $< $@
|
||||
|
||||
#{exe}: #{objs_str}
|
||||
$(CC) $(LDFLAGS) $(#{prefix}_LDFLAGS) -o $@ $^
|
||||
$(CC) -o $@ $^ $(LDFLAGS) $(#{prefix}_LDFLAGS)
|
||||
|
||||
" + objs.collect_with_index do |obj, i|
|
||||
src = sources[i]
|
||||
|
|
@ -181,7 +181,7 @@ class Utility
|
|||
MOSTLYCLEANFILES += #{deps_str}
|
||||
|
||||
#{@name}: #{objs_str}
|
||||
$(BUILD_CC) $(BUILD_LDFLAGS) $(#{prefix}_LDFLAGS) -o $@ $^
|
||||
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(#{prefix}_LDFLAGS)
|
||||
|
||||
" + objs.collect_with_index do |obj, i|
|
||||
src = sources[i]
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* 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
|
||||
|
|
@ -20,22 +20,30 @@
|
|||
#ifndef KERNEL_MACHINE_HEADER
|
||||
#define KERNEL_MACHINE_HEADER 1
|
||||
|
||||
#include <pupa/types.h>
|
||||
|
||||
/* The offset of PUPA_TOTAL_MODULE_SIZE. */
|
||||
#define PUPA_KERNEL_MACHINE_TOTAL_MODULE_SIZE 0x8
|
||||
|
||||
/* The offset of PUPA_KERNEL_IMAGE_SIZE. */
|
||||
#define PUPA_KERNEL_MACHINE_KERNEL_IMAGE_SIZE 0xc
|
||||
|
||||
/* The offset of PUPA_COMPRESSED_SIZE. */
|
||||
#define PUPA_KERNEL_MACHINE_COMPRESSED_SIZE 0x10
|
||||
|
||||
/* The offset of PUPA_INSTALL_DOS_PART. */
|
||||
#define PUPA_KERNEL_MACHINE_INSTALL_DOS_PART 0x10
|
||||
#define PUPA_KERNEL_MACHINE_INSTALL_DOS_PART 0x14
|
||||
|
||||
/* The offset of PUPA_INSTALL_BSD_PART. */
|
||||
#define PUPA_KERNEL_MACHINE_INSTALL_BSD_PART 0x14
|
||||
#define PUPA_KERNEL_MACHINE_INSTALL_BSD_PART 0x18
|
||||
|
||||
/* The offset of PUPA_PREFIX. */
|
||||
#define PUPA_KERNEL_MACHINE_PREFIX 0x18
|
||||
#define PUPA_KERNEL_MACHINE_PREFIX 0x1c
|
||||
|
||||
/* The size of the first region which won't be compressed. */
|
||||
#define PUPA_KERNEL_MACHINE_RAW_SIZE 0x400
|
||||
|
||||
#ifndef ASM_FILE
|
||||
|
||||
#include <pupa/types.h>
|
||||
|
||||
/* The DOS partition number of the installed partition. */
|
||||
extern pupa_int32_t pupa_install_dos_part;
|
||||
|
|
@ -50,4 +58,6 @@ extern char pupa_prefix[];
|
|||
/* The boot BIOS drive number. */
|
||||
extern pupa_int32_t pupa_boot_drive;
|
||||
|
||||
#endif /* ! ASM_FILE */
|
||||
|
||||
#endif /* ! KERNEL_MACHINE_HEADER */
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* PUPA is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -36,6 +36,7 @@ char *xstrdup (const char *str);
|
|||
char *pupa_util_get_path (const char *dir, const char *file);
|
||||
size_t pupa_util_get_image_size (const char *path);
|
||||
char *pupa_util_read_image (const char *path);
|
||||
void pupa_util_load_image (const char *path, char *buf);
|
||||
void pupa_util_write_image (const char *img, size_t size, FILE *out);
|
||||
|
||||
#endif /* ! PUPA_UTIL_MISC_HEADER */
|
||||
|
|
|
|||
|
|
@ -130,9 +130,11 @@ pupa_machine_init (void)
|
|||
/* Sanity check. */
|
||||
if (pupa_lower_mem < PUPA_MEMORY_MACHINE_RESERVED_END)
|
||||
pupa_fatal ("too small memory");
|
||||
|
||||
|
||||
#if 0
|
||||
/* Turn on Gate A20 to access >1MB. */
|
||||
pupa_gate_a20 (1);
|
||||
#endif
|
||||
|
||||
/* Add the lower memory into free memory. */
|
||||
if (pupa_lower_mem >= PUPA_MEMORY_MACHINE_RESERVED_END)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,323 @@
|
|||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 1996-2002 Markus Franz Xaver Johannes Oberhumer
|
||||
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* 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
|
||||
* (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This code was stolen from the files enter.sh, leave.sh, lzo1x_d.sh,
|
||||
* lzo1x_f.s and lzo_asm.h in LZO version 1.08, and was heavily modified
|
||||
* to adapt it to PUPA's requirement.
|
||||
*
|
||||
* See <http://www.oberhumer.com/opensource/lzo/>, for more information
|
||||
* about LZO.
|
||||
*/
|
||||
|
||||
#define INP 4+16(%esp)
|
||||
#define INS 8+16(%esp)
|
||||
#define OUTP 12+16(%esp)
|
||||
#define NN 3
|
||||
#define N_3 %ebp
|
||||
#define N_255 $255
|
||||
#define LODSB movb (%esi), %al ; incl %esi
|
||||
#define NOTL_3(r) xorl N_3, r
|
||||
#define MOVSL(r1,r2,x) movl (r1), x ; addl $4, r1 ; movl x, (r2) ; addl $4, r2
|
||||
#define COPYL_C(r1,r2,x,rc) 9: MOVSL(r1,r2,x) ; decl rc ; jnz 9b
|
||||
#define COPYL(r1,r2,x) COPYL_C(r1,r2,x,%ecx)
|
||||
|
||||
lzo1x_decompress:
|
||||
pushl %ebp
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
|
||||
cld
|
||||
|
||||
movl INP, %esi
|
||||
movl OUTP, %edi
|
||||
movl $3, %ebp
|
||||
|
||||
|
||||
xorl %eax, %eax
|
||||
xorl %ebx, %ebx /* high bits 9-32 stay 0 */
|
||||
lodsb
|
||||
cmpb $17, %al
|
||||
jbe .L01
|
||||
subb $17-NN, %al
|
||||
jmp .LFLR
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// literal run
|
||||
************************************************************************/
|
||||
|
||||
0: addl N_255, %eax
|
||||
1: movb (%esi), %bl
|
||||
incl %esi
|
||||
orb %bl, %bl
|
||||
jz 0b
|
||||
leal 18+NN(%eax,%ebx), %eax
|
||||
jmp 3f
|
||||
|
||||
|
||||
.align 8
|
||||
.L00:
|
||||
LODSB
|
||||
.L01:
|
||||
cmpb $16, %al
|
||||
jae .LMATCH
|
||||
|
||||
/* a literal run */
|
||||
orb %al, %al
|
||||
jz 1b
|
||||
addl $3+NN, %eax
|
||||
3:
|
||||
.LFLR:
|
||||
movl %eax, %ecx
|
||||
NOTL_3(%eax)
|
||||
shrl $2, %ecx
|
||||
andl N_3, %eax
|
||||
COPYL(%esi,%edi,%edx)
|
||||
subl %eax, %esi
|
||||
subl %eax, %edi
|
||||
|
||||
LODSB
|
||||
cmpb $16, %al
|
||||
jae .LMATCH
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// R1
|
||||
************************************************************************/
|
||||
|
||||
shrl $2, %eax
|
||||
movb (%esi), %bl
|
||||
leal -0x801(%edi), %edx
|
||||
leal (%eax,%ebx,4), %eax
|
||||
incl %esi
|
||||
subl %eax, %edx
|
||||
movl (%edx), %ecx
|
||||
movl %ecx, (%edi)
|
||||
addl N_3, %edi
|
||||
jmp .LMDONE
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// M2
|
||||
************************************************************************/
|
||||
|
||||
.align 8
|
||||
.LMATCH:
|
||||
cmpb $64, %al
|
||||
jb .LM3MATCH
|
||||
|
||||
/* a M2 match */
|
||||
movl %eax, %ecx
|
||||
shrl $2, %eax
|
||||
leal -1(%edi), %edx
|
||||
andl $7, %eax
|
||||
movb (%esi), %bl
|
||||
shrl $5, %ecx
|
||||
leal (%eax,%ebx,8), %eax
|
||||
incl %esi
|
||||
subl %eax, %edx
|
||||
|
||||
addl $1+3, %ecx
|
||||
|
||||
cmpl N_3, %eax
|
||||
jae .LCOPYLONG
|
||||
jmp .LCOPYBYTE
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// M3
|
||||
************************************************************************/
|
||||
|
||||
0: addl N_255, %eax
|
||||
1: movb (%esi), %bl
|
||||
incl %esi
|
||||
orb %bl, %bl
|
||||
jz 0b
|
||||
leal 33+NN(%eax,%ebx), %ecx
|
||||
xorl %eax, %eax
|
||||
jmp 3f
|
||||
|
||||
|
||||
.align 8
|
||||
.LM3MATCH:
|
||||
cmpb $32, %al
|
||||
jb .LM4MATCH
|
||||
|
||||
/* a M3 match */
|
||||
andl $31, %eax
|
||||
jz 1b
|
||||
lea 2+NN(%eax), %ecx
|
||||
3:
|
||||
movw (%esi), %ax
|
||||
leal -1(%edi), %edx
|
||||
shrl $2, %eax
|
||||
addl $2, %esi
|
||||
subl %eax, %edx
|
||||
|
||||
cmpl N_3, %eax
|
||||
jb .LCOPYBYTE
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// copy match
|
||||
************************************************************************/
|
||||
|
||||
.align 2
|
||||
.LCOPYLONG: /* copy match using longwords */
|
||||
leal -3(%edi,%ecx), %eax
|
||||
shrl $2, %ecx
|
||||
COPYL(%edx,%edi,%ebx)
|
||||
movl %eax, %edi
|
||||
xorl %ebx, %ebx
|
||||
|
||||
.LMDONE:
|
||||
movb -2(%esi), %al
|
||||
andl N_3, %eax
|
||||
jz .L00
|
||||
.LFLR3:
|
||||
movl (%esi), %edx
|
||||
addl %eax, %esi
|
||||
movl %edx, (%edi)
|
||||
addl %eax, %edi
|
||||
|
||||
LODSB
|
||||
jmp .LMATCH
|
||||
|
||||
|
||||
.align 8
|
||||
.LCOPYBYTE: /* copy match using bytes */
|
||||
xchgl %edx,%esi
|
||||
subl N_3,%ecx
|
||||
|
||||
rep
|
||||
movsb
|
||||
movl %edx, %esi
|
||||
jmp .LMDONE
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// M4
|
||||
************************************************************************/
|
||||
|
||||
0: addl N_255, %ecx
|
||||
1: movb (%esi), %bl
|
||||
incl %esi
|
||||
orb %bl, %bl
|
||||
jz 0b
|
||||
leal 9+NN(%ebx,%ecx), %ecx
|
||||
jmp 3f
|
||||
|
||||
|
||||
.align 8
|
||||
.LM4MATCH:
|
||||
cmpb $16, %al
|
||||
jb .LM1MATCH
|
||||
|
||||
/* a M4 match */
|
||||
movl %eax, %ecx
|
||||
andl $8, %eax
|
||||
shll $13, %eax /* save in bit 16 */
|
||||
andl $7, %ecx
|
||||
jz 1b
|
||||
addl $2+NN, %ecx
|
||||
3:
|
||||
movw (%esi), %ax
|
||||
addl $2, %esi
|
||||
leal -0x4000(%edi), %edx
|
||||
shrl $2, %eax
|
||||
jz .LEOF
|
||||
subl %eax, %edx
|
||||
jmp .LCOPYLONG
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
// M1
|
||||
************************************************************************/
|
||||
|
||||
.align 8
|
||||
.LM1MATCH:
|
||||
/* a M1 match */
|
||||
shrl $2, %eax
|
||||
movb (%esi), %bl
|
||||
leal -1(%edi), %edx
|
||||
leal (%eax,%ebx,4), %eax
|
||||
incl %esi
|
||||
subl %eax, %edx
|
||||
|
||||
movb (%edx), %al /* we must use this because edx can be edi-1 */
|
||||
movb %al, (%edi)
|
||||
movb 1(%edx), %bl
|
||||
movb %bl, 1(%edi)
|
||||
addl $2, %edi
|
||||
jmp .LMDONE
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
//
|
||||
************************************************************************/
|
||||
|
||||
.LEOF:
|
||||
/**** xorl %eax,%eax eax=0 from above */
|
||||
|
||||
cmpl $3+NN, %ecx /* ecx must be 3/6 */
|
||||
setnz %al
|
||||
|
||||
/* check compressed size */
|
||||
movl INP, %edx
|
||||
addl INS, %edx
|
||||
cmpl %edx, %esi /* check compressed size */
|
||||
ja .L_input_overrun
|
||||
jb .L_input_not_consumed
|
||||
|
||||
.L_leave:
|
||||
negl %eax
|
||||
jnz 1f
|
||||
|
||||
subl OUTP, %edi /* write back the uncompressed size */
|
||||
movl %edi, %eax
|
||||
|
||||
1: popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
popl %ebp
|
||||
ret
|
||||
|
||||
.L_input_not_consumed:
|
||||
movl $8, %eax /* LZO_E_INPUT_NOT_CONSUMED */
|
||||
jmp .L_leave
|
||||
|
||||
.L_input_overrun:
|
||||
movl $4, %eax /* LZO_E_INPUT_OVERRUN */
|
||||
jmp .L_leave
|
||||
|
||||
#undef INP
|
||||
#undef INS
|
||||
#undef OUTP
|
||||
#undef NN
|
||||
#undef NN
|
||||
#undef N_3
|
||||
#undef N_255
|
||||
#undef LODSB
|
||||
#undef NOTL_3
|
||||
#undef MOVSL
|
||||
#undef COPYL_C
|
||||
#undef COPYL
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 1999,2000,2001,2002 Free Software Foundation, Inc.
|
||||
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* 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
|
||||
|
|
@ -50,7 +50,8 @@
|
|||
#include <pupa/machine/memory.h>
|
||||
#include <pupa/machine/console.h>
|
||||
#include <pupa/machine/linux.h>
|
||||
|
||||
#include <pupa/machine/kernel.h>
|
||||
|
||||
#define ABS(x) ((x) - EXT_C(start) + PUPA_BOOT_MACHINE_KERNEL_ADDR + 0x200)
|
||||
|
||||
.file "startup.S"
|
||||
|
|
@ -88,6 +89,8 @@ VARIABLE(pupa_total_module_size)
|
|||
.long 0
|
||||
VARIABLE(pupa_kernel_image_size)
|
||||
.long 0
|
||||
VARIABLE(pupa_compressed_size)
|
||||
.long 0
|
||||
VARIABLE(pupa_install_dos_part)
|
||||
.long 0xFFFFFFFF
|
||||
VARIABLE(pupa_install_bsd_part)
|
||||
|
|
@ -129,6 +132,25 @@ codestart:
|
|||
/* The ".code32" directive takes GAS out of 16-bit mode. */
|
||||
.code32
|
||||
|
||||
incl %eax
|
||||
call EXT_C(pupa_gate_a20)
|
||||
|
||||
/* decompress the compressed part and put the result at 1MB */
|
||||
movl $0x100000, %esi
|
||||
movl $(START_SYMBOL + PUPA_KERNEL_MACHINE_RAW_SIZE), %edi
|
||||
|
||||
pushl %esi
|
||||
pushl EXT_C(pupa_compressed_size)
|
||||
pushl %edi
|
||||
call lzo1x_decompress
|
||||
addl $12, %esp
|
||||
|
||||
/* copy back the decompressed part */
|
||||
movl %eax, %ecx
|
||||
cld
|
||||
rep
|
||||
movsb
|
||||
|
||||
/* copy modules before cleaning out the bss */
|
||||
movl EXT_C(pupa_total_module_size), %ecx
|
||||
movl EXT_C(pupa_kernel_image_size), %esi
|
||||
|
|
@ -148,8 +170,9 @@ codestart:
|
|||
/* compute the bss length */
|
||||
movl $END_SYMBOL, %ecx
|
||||
subl %edi, %ecx
|
||||
|
||||
|
||||
/* clean out */
|
||||
xorl %eax, %eax
|
||||
cld
|
||||
rep
|
||||
stosb
|
||||
|
|
@ -160,6 +183,255 @@ codestart:
|
|||
call EXT_C(pupa_main)
|
||||
|
||||
|
||||
/*
|
||||
* This is the area for all of the special variables.
|
||||
*/
|
||||
|
||||
.p2align 2 /* force 4-byte alignment */
|
||||
|
||||
protstack:
|
||||
.long PUPA_MEMORY_MACHINE_PROT_STACK
|
||||
|
||||
VARIABLE(pupa_boot_drive)
|
||||
.long 0
|
||||
|
||||
VARIABLE(pupa_start_addr)
|
||||
.long START_SYMBOL
|
||||
|
||||
VARIABLE(pupa_end_addr)
|
||||
.long END_SYMBOL
|
||||
|
||||
VARIABLE(pupa_apm_bios_info)
|
||||
.word 0 /* version */
|
||||
.word 0 /* cseg */
|
||||
.long 0 /* offset */
|
||||
.word 0 /* cseg_16 */
|
||||
.word 0 /* dseg_16 */
|
||||
.word 0 /* cseg_len */
|
||||
.word 0 /* cseg_16_len */
|
||||
.word 0 /* dseg_16_len */
|
||||
|
||||
/*
|
||||
* This is the Global Descriptor Table
|
||||
*
|
||||
* An entry, a "Segment Descriptor", looks like this:
|
||||
*
|
||||
* 31 24 19 16 7 0
|
||||
* ------------------------------------------------------------
|
||||
* | | |B| |A| | | |1|0|E|W|A| |
|
||||
* | BASE 31..24 |G|/|0|V| LIMIT |P|DPL| TYPE | BASE 23:16 |
|
||||
* | | |D| |L| 19..16| | |1|1|C|R|A| |
|
||||
* ------------------------------------------------------------
|
||||
* | | |
|
||||
* | BASE 15..0 | LIMIT 15..0 |
|
||||
* | | |
|
||||
* ------------------------------------------------------------
|
||||
*
|
||||
* Note the ordering of the data items is reversed from the above
|
||||
* description.
|
||||
*/
|
||||
|
||||
.p2align 2 /* force 4-byte alignment */
|
||||
gdt:
|
||||
.word 0, 0
|
||||
.byte 0, 0, 0, 0
|
||||
|
||||
/* code segment */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x9A, 0xCF, 0
|
||||
|
||||
/* data segment */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x92, 0xCF, 0
|
||||
|
||||
/* 16 bit real mode CS */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x9E, 0, 0
|
||||
|
||||
/* 16 bit real mode DS */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x92, 0, 0
|
||||
|
||||
|
||||
/* this is the GDT descriptor */
|
||||
gdtdesc:
|
||||
.word 0x27 /* limit */
|
||||
.long gdt /* addr */
|
||||
|
||||
|
||||
/*
|
||||
* These next two routines, "real_to_prot" and "prot_to_real" are structured
|
||||
* in a very specific way. Be very careful when changing them.
|
||||
*
|
||||
* NOTE: Use of either one messes up %eax and %ebp.
|
||||
*/
|
||||
|
||||
real_to_prot:
|
||||
.code16
|
||||
cli
|
||||
|
||||
/* load the GDT register */
|
||||
DATA32 ADDR32 lgdt gdtdesc
|
||||
|
||||
/* turn on protected mode */
|
||||
movl %cr0, %eax
|
||||
orl $PUPA_MEMORY_MACHINE_CR0_PE_ON, %eax
|
||||
movl %eax, %cr0
|
||||
|
||||
/* jump to relocation, flush prefetch queue, and reload %cs */
|
||||
DATA32 ljmp $PUPA_MEMORY_MACHINE_PROT_MODE_CSEG, $protcseg
|
||||
|
||||
.code32
|
||||
protcseg:
|
||||
/* reload other segment registers */
|
||||
movw $PUPA_MEMORY_MACHINE_PROT_MODE_DSEG, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* put the return address in a known safe location */
|
||||
movl (%esp), %eax
|
||||
movl %eax, PUPA_MEMORY_MACHINE_REAL_STACK
|
||||
|
||||
/* get protected mode stack */
|
||||
movl protstack, %eax
|
||||
movl %eax, %esp
|
||||
movl %eax, %ebp
|
||||
|
||||
/* get return address onto the right stack */
|
||||
movl PUPA_MEMORY_MACHINE_REAL_STACK, %eax
|
||||
movl %eax, (%esp)
|
||||
|
||||
/* zero %eax */
|
||||
xorl %eax, %eax
|
||||
|
||||
/* return on the old (or initialized) stack! */
|
||||
ret
|
||||
|
||||
|
||||
prot_to_real:
|
||||
/* just in case, set GDT */
|
||||
lgdt gdtdesc
|
||||
|
||||
/* save the protected mode stack */
|
||||
movl %esp, %eax
|
||||
movl %eax, protstack
|
||||
|
||||
/* get the return address */
|
||||
movl (%esp), %eax
|
||||
movl %eax, PUPA_MEMORY_MACHINE_REAL_STACK
|
||||
|
||||
/* set up new stack */
|
||||
movl $PUPA_MEMORY_MACHINE_REAL_STACK, %eax
|
||||
movl %eax, %esp
|
||||
movl %eax, %ebp
|
||||
|
||||
/* set up segment limits */
|
||||
movw $PUPA_MEMORY_MACHINE_PSEUDO_REAL_DSEG, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* this might be an extra step */
|
||||
/* jump to a 16 bit segment */
|
||||
ljmp $PUPA_MEMORY_MACHINE_PSEUDO_REAL_CSEG, $tmpcseg
|
||||
|
||||
tmpcseg:
|
||||
.code16
|
||||
|
||||
/* clear the PE bit of CR0 */
|
||||
movl %cr0, %eax
|
||||
andl $(~PUPA_MEMORY_MACHINE_CR0_PE_ON), %eax
|
||||
movl %eax, %cr0
|
||||
|
||||
/* flush prefetch queue, reload %cs */
|
||||
DATA32 ljmp $0, $realcseg
|
||||
|
||||
realcseg:
|
||||
/* we are in real mode now
|
||||
* set up the real mode segment registers : DS, SS, ES
|
||||
*/
|
||||
/* zero %eax */
|
||||
xorl %eax, %eax
|
||||
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* restore interrupts */
|
||||
sti
|
||||
|
||||
/* return on new stack! */
|
||||
DATA32 ret
|
||||
|
||||
.code32
|
||||
|
||||
|
||||
/*
|
||||
* pupa_gate_a20(int on)
|
||||
*
|
||||
* Gate address-line 20 for high memory.
|
||||
*
|
||||
* This routine is probably overconservative in what it does, but so what?
|
||||
*
|
||||
* It also eats any keystrokes in the keyboard buffer. :-(
|
||||
*/
|
||||
|
||||
FUNCTION(pupa_gate_a20)
|
||||
movl %eax, %ecx
|
||||
|
||||
call gloop1
|
||||
|
||||
movb $0xd1, %al
|
||||
outb $0x64
|
||||
|
||||
gloopint1:
|
||||
inb $0x64
|
||||
andb $0x02, %al
|
||||
jnz gloopint1
|
||||
|
||||
movb $0xdd, %al
|
||||
testl %ecx, %ecx
|
||||
jz gdoit
|
||||
|
||||
orb $0x02, %al
|
||||
gdoit:
|
||||
outb $0x60
|
||||
|
||||
call gloop1
|
||||
|
||||
/* output a dummy command (USB keyboard hack) */
|
||||
movb $0xff, %al
|
||||
outb $0x64
|
||||
call gloop1
|
||||
|
||||
ret
|
||||
|
||||
gloop1:
|
||||
inb $0x64
|
||||
andb $0x02, %al
|
||||
jnz gloop1
|
||||
|
||||
gloop2:
|
||||
inb $0x64
|
||||
andb $0x01, %al
|
||||
jz gloop2ret
|
||||
inb $0x60
|
||||
jmp gloop2
|
||||
|
||||
gloop2ret:
|
||||
ret
|
||||
|
||||
|
||||
#include "lzo1x.S"
|
||||
|
||||
|
||||
/*
|
||||
* This call is special... it never returns... in fact it should simply
|
||||
* hang at this point!
|
||||
|
|
@ -348,120 +620,6 @@ linux_setup_seg:
|
|||
.code32
|
||||
|
||||
|
||||
/*
|
||||
* These next two routines, "real_to_prot" and "prot_to_real" are structured
|
||||
* in a very specific way. Be very careful when changing them.
|
||||
*
|
||||
* NOTE: Use of either one messes up %eax and %ebp.
|
||||
*/
|
||||
|
||||
real_to_prot:
|
||||
.code16
|
||||
cli
|
||||
|
||||
/* load the GDT register */
|
||||
DATA32 ADDR32 lgdt gdtdesc
|
||||
|
||||
/* turn on protected mode */
|
||||
movl %cr0, %eax
|
||||
orl $PUPA_MEMORY_MACHINE_CR0_PE_ON, %eax
|
||||
movl %eax, %cr0
|
||||
|
||||
/* jump to relocation, flush prefetch queue, and reload %cs */
|
||||
DATA32 ljmp $PUPA_MEMORY_MACHINE_PROT_MODE_CSEG, $protcseg
|
||||
|
||||
.code32
|
||||
protcseg:
|
||||
/* reload other segment registers */
|
||||
movw $PUPA_MEMORY_MACHINE_PROT_MODE_DSEG, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* put the return address in a known safe location */
|
||||
movl (%esp), %eax
|
||||
movl %eax, PUPA_MEMORY_MACHINE_REAL_STACK
|
||||
|
||||
/* get protected mode stack */
|
||||
movl protstack, %eax
|
||||
movl %eax, %esp
|
||||
movl %eax, %ebp
|
||||
|
||||
/* get return address onto the right stack */
|
||||
movl PUPA_MEMORY_MACHINE_REAL_STACK, %eax
|
||||
movl %eax, (%esp)
|
||||
|
||||
/* zero %eax */
|
||||
xorl %eax, %eax
|
||||
|
||||
/* return on the old (or initialized) stack! */
|
||||
ret
|
||||
|
||||
|
||||
prot_to_real:
|
||||
/* just in case, set GDT */
|
||||
lgdt gdtdesc
|
||||
|
||||
/* save the protected mode stack */
|
||||
movl %esp, %eax
|
||||
movl %eax, protstack
|
||||
|
||||
/* get the return address */
|
||||
movl (%esp), %eax
|
||||
movl %eax, PUPA_MEMORY_MACHINE_REAL_STACK
|
||||
|
||||
/* set up new stack */
|
||||
movl $PUPA_MEMORY_MACHINE_REAL_STACK, %eax
|
||||
movl %eax, %esp
|
||||
movl %eax, %ebp
|
||||
|
||||
/* set up segment limits */
|
||||
movw $PUPA_MEMORY_MACHINE_PSEUDO_REAL_DSEG, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* this might be an extra step */
|
||||
/* jump to a 16 bit segment */
|
||||
ljmp $PUPA_MEMORY_MACHINE_PSEUDO_REAL_CSEG, $tmpcseg
|
||||
|
||||
tmpcseg:
|
||||
.code16
|
||||
|
||||
/* clear the PE bit of CR0 */
|
||||
movl %cr0, %eax
|
||||
andl $(~PUPA_MEMORY_MACHINE_CR0_PE_ON), %eax
|
||||
movl %eax, %cr0
|
||||
|
||||
/* flush prefetch queue, reload %cs */
|
||||
DATA32 ljmp $0, $realcseg
|
||||
|
||||
realcseg:
|
||||
/* we are in real mode now
|
||||
* set up the real mode segment registers : DS, SS, ES
|
||||
*/
|
||||
/* zero %eax */
|
||||
xorl %eax, %eax
|
||||
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movw %ax, %ss
|
||||
|
||||
/* restore interrupts */
|
||||
sti
|
||||
|
||||
/* return on new stack! */
|
||||
DATA32 ret
|
||||
|
||||
.code32
|
||||
|
||||
|
||||
/*
|
||||
* int pupa_biosdisk_rw_int13_extensions (int ah, int drive, void *dap)
|
||||
*
|
||||
|
|
@ -931,63 +1089,6 @@ xsmap:
|
|||
ret
|
||||
|
||||
|
||||
/*
|
||||
* pupa_gate_a20(int on)
|
||||
*
|
||||
* Gate address-line 20 for high memory.
|
||||
*
|
||||
* This routine is probably overconservative in what it does, but so what?
|
||||
*
|
||||
* It also eats any keystrokes in the keyboard buffer. :-(
|
||||
*/
|
||||
|
||||
FUNCTION(pupa_gate_a20)
|
||||
pushl %eax
|
||||
|
||||
call gloop1
|
||||
|
||||
movb $0xd1, %al
|
||||
outb $0x64
|
||||
|
||||
gloopint1:
|
||||
inb $0x64
|
||||
andb $0x02, %al
|
||||
jnz gloopint1
|
||||
|
||||
movb $0xdd, %al
|
||||
cmpb $0, 0x8(%esp)
|
||||
jz gdoit
|
||||
|
||||
orb $0x02, %al
|
||||
gdoit:
|
||||
outb $0x60
|
||||
|
||||
call gloop1
|
||||
|
||||
/* output a dummy command (USB keyboard hack) */
|
||||
movb $0xff, %al
|
||||
outb $0x64
|
||||
call gloop1
|
||||
|
||||
popl %eax
|
||||
ret
|
||||
|
||||
gloop1:
|
||||
inb $0x64
|
||||
andb $0x02, %al
|
||||
jnz gloop1
|
||||
|
||||
gloop2:
|
||||
inb $0x64
|
||||
andb $0x01, %al
|
||||
jz gloop2ret
|
||||
inb $0x60
|
||||
jmp gloop2
|
||||
|
||||
gloop2ret:
|
||||
ret
|
||||
|
||||
|
||||
/*
|
||||
* void pupa_console_putchar (int c)
|
||||
*
|
||||
|
|
@ -1413,79 +1514,3 @@ FUNCTION(pupa_currticks)
|
|||
|
||||
popl %ebp
|
||||
ret
|
||||
|
||||
|
||||
/*
|
||||
* This is the area for all of the special variables.
|
||||
*/
|
||||
|
||||
.p2align 2 /* force 4-byte alignment */
|
||||
|
||||
protstack:
|
||||
.long PUPA_MEMORY_MACHINE_PROT_STACK
|
||||
|
||||
VARIABLE(pupa_boot_drive)
|
||||
.long 0
|
||||
|
||||
VARIABLE(pupa_start_addr)
|
||||
.long START_SYMBOL
|
||||
|
||||
VARIABLE(pupa_end_addr)
|
||||
.long END_SYMBOL
|
||||
|
||||
VARIABLE(pupa_apm_bios_info)
|
||||
.word 0 /* version */
|
||||
.word 0 /* cseg */
|
||||
.long 0 /* offset */
|
||||
.word 0 /* cseg_16 */
|
||||
.word 0 /* dseg_16 */
|
||||
.word 0 /* cseg_len */
|
||||
.word 0 /* cseg_16_len */
|
||||
.word 0 /* dseg_16_len */
|
||||
|
||||
/*
|
||||
* This is the Global Descriptor Table
|
||||
*
|
||||
* An entry, a "Segment Descriptor", looks like this:
|
||||
*
|
||||
* 31 24 19 16 7 0
|
||||
* ------------------------------------------------------------
|
||||
* | | |B| |A| | | |1|0|E|W|A| |
|
||||
* | BASE 31..24 |G|/|0|V| LIMIT |P|DPL| TYPE | BASE 23:16 |
|
||||
* | | |D| |L| 19..16| | |1|1|C|R|A| |
|
||||
* ------------------------------------------------------------
|
||||
* | | |
|
||||
* | BASE 15..0 | LIMIT 15..0 |
|
||||
* | | |
|
||||
* ------------------------------------------------------------
|
||||
*
|
||||
* Note the ordering of the data items is reversed from the above
|
||||
* description.
|
||||
*/
|
||||
|
||||
.p2align 2 /* force 4-byte alignment */
|
||||
gdt:
|
||||
.word 0, 0
|
||||
.byte 0, 0, 0, 0
|
||||
|
||||
/* code segment */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x9A, 0xCF, 0
|
||||
|
||||
/* data segment */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x92, 0xCF, 0
|
||||
|
||||
/* 16 bit real mode CS */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x9E, 0, 0
|
||||
|
||||
/* 16 bit real mode DS */
|
||||
.word 0xFFFF, 0
|
||||
.byte 0, 0x92, 0, 0
|
||||
|
||||
|
||||
/* this is the GDT descriptor */
|
||||
gdtdesc:
|
||||
.word 0x27 /* limit */
|
||||
.long gdt /* addr */
|
||||
|
|
|
|||
|
|
@ -135,7 +135,7 @@ static void *
|
|||
pupa_real_malloc (pupa_mm_header_t *first, pupa_size_t n, pupa_size_t align)
|
||||
{
|
||||
pupa_mm_header_t p, q;
|
||||
|
||||
|
||||
if ((*first)->magic == PUPA_MM_ALLOC_MAGIC)
|
||||
return 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* pupa-mkimage.c - make a bootable image */
|
||||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* PUPA is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -35,14 +35,49 @@
|
|||
#define _GNU_SOURCE 1
|
||||
#include <getopt.h>
|
||||
|
||||
#include <lzo1x.h>
|
||||
|
||||
static void
|
||||
compress_kernel (char *kernel_img, size_t kernel_size,
|
||||
char **core_img, size_t *core_size)
|
||||
{
|
||||
lzo_uint size;
|
||||
char *wrkmem;
|
||||
|
||||
pupa_util_info ("kernel_img=%p, kernel_size=0x%x", kernel_img, kernel_size);
|
||||
if (kernel_size < PUPA_KERNEL_MACHINE_RAW_SIZE)
|
||||
pupa_util_error ("the core image is too small");
|
||||
|
||||
if (lzo_init () != LZO_E_OK)
|
||||
pupa_util_error ("cannot initialize LZO");
|
||||
|
||||
*core_img = xmalloc (kernel_size + kernel_size / 64 + 16 + 3);
|
||||
wrkmem = xmalloc (LZO1X_999_MEM_COMPRESS);
|
||||
|
||||
memcpy (*core_img, kernel_img, PUPA_KERNEL_MACHINE_RAW_SIZE);
|
||||
|
||||
pupa_util_info ("compressing the core image");
|
||||
if (lzo1x_999_compress (kernel_img + PUPA_KERNEL_MACHINE_RAW_SIZE,
|
||||
kernel_size - PUPA_KERNEL_MACHINE_RAW_SIZE,
|
||||
*core_img + PUPA_KERNEL_MACHINE_RAW_SIZE,
|
||||
&size, wrkmem)
|
||||
!= LZO_E_OK)
|
||||
pupa_util_error ("cannot compress the kernel image");
|
||||
|
||||
free (wrkmem);
|
||||
|
||||
*core_size = (size_t) size + PUPA_KERNEL_MACHINE_RAW_SIZE;
|
||||
}
|
||||
|
||||
static void
|
||||
generate_image (const char *dir, FILE *out, char *mods[])
|
||||
{
|
||||
pupa_addr_t module_addr = 0;
|
||||
char *kernel_img, *boot_img;
|
||||
size_t kernel_size, boot_size, total_module_size;
|
||||
char *kernel_img, *boot_img, *core_img;
|
||||
size_t kernel_size, boot_size, total_module_size, core_size;
|
||||
char *kernel_path, *boot_path;
|
||||
unsigned num;
|
||||
size_t offset;
|
||||
struct pupa_util_path_list *path_list, *p, *next;
|
||||
|
||||
path_list = pupa_util_resolve_dependencies (dir, "moddep.lst", mods);
|
||||
|
|
@ -56,9 +91,32 @@ generate_image (const char *dir, FILE *out, char *mods[])
|
|||
+ sizeof (struct pupa_module_header));
|
||||
|
||||
pupa_util_info ("the total module size is 0x%x", total_module_size);
|
||||
|
||||
kernel_img = xmalloc (kernel_size + total_module_size);
|
||||
pupa_util_load_image (kernel_path, kernel_img);
|
||||
offset = kernel_size;
|
||||
for (p = path_list; p; p = p->next)
|
||||
{
|
||||
struct pupa_module_header *header;
|
||||
size_t mod_size;
|
||||
|
||||
mod_size = pupa_util_get_image_size (p->name);
|
||||
|
||||
header = (struct pupa_module_header *) (kernel_img + offset);
|
||||
header->offset = pupa_cpu_to_le32 (sizeof (*header));
|
||||
header->size = pupa_cpu_to_le32 (mod_size + sizeof (*header));
|
||||
|
||||
pupa_util_load_image (p->name, kernel_img + offset + sizeof (*header));
|
||||
|
||||
offset += sizeof (*header) + mod_size;
|
||||
}
|
||||
|
||||
compress_kernel (kernel_img, kernel_size + total_module_size,
|
||||
&core_img, &core_size);
|
||||
|
||||
pupa_util_info ("the core size is 0x%x", core_size);
|
||||
|
||||
num = ((kernel_size + total_module_size + PUPA_DISK_SECTOR_SIZE - 1)
|
||||
>> PUPA_DISK_SECTOR_BITS);
|
||||
num = ((core_size + PUPA_DISK_SECTOR_SIZE - 1) >> PUPA_DISK_SECTOR_BITS);
|
||||
if (num > 0xffff)
|
||||
pupa_util_error ("the core image is too big");
|
||||
|
||||
|
|
@ -78,42 +136,27 @@ generate_image (const char *dir, FILE *out, char *mods[])
|
|||
free (boot_img);
|
||||
free (boot_path);
|
||||
|
||||
kernel_img = pupa_util_read_image (kernel_path);
|
||||
module_addr = (path_list
|
||||
? (PUPA_BOOT_MACHINE_KERNEL_ADDR + PUPA_DISK_SECTOR_SIZE
|
||||
+ kernel_size)
|
||||
: 0);
|
||||
|
||||
pupa_util_info ("the first module address is 0x%x", module_addr);
|
||||
*((pupa_uint32_t *) (kernel_img + PUPA_KERNEL_MACHINE_TOTAL_MODULE_SIZE))
|
||||
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_TOTAL_MODULE_SIZE))
|
||||
= pupa_cpu_to_le32 (total_module_size);
|
||||
*((pupa_uint32_t *) (kernel_img + PUPA_KERNEL_MACHINE_KERNEL_IMAGE_SIZE))
|
||||
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_KERNEL_IMAGE_SIZE))
|
||||
= pupa_cpu_to_le32 (kernel_size);
|
||||
*((pupa_uint32_t *) (core_img + PUPA_KERNEL_MACHINE_COMPRESSED_SIZE))
|
||||
= pupa_cpu_to_le32 (core_size - PUPA_KERNEL_MACHINE_RAW_SIZE);
|
||||
|
||||
pupa_util_write_image (kernel_img, kernel_size, out);
|
||||
pupa_util_write_image (core_img, core_size, out);
|
||||
free (kernel_img);
|
||||
free (core_img);
|
||||
free (kernel_path);
|
||||
|
||||
while (path_list)
|
||||
{
|
||||
struct pupa_module_header header;
|
||||
size_t mod_size;
|
||||
char *mod_img;
|
||||
|
||||
next = path_list->next;
|
||||
|
||||
mod_size = pupa_util_get_image_size (path_list->name);
|
||||
|
||||
header.offset = pupa_cpu_to_le32 (sizeof (header));
|
||||
header.size = pupa_cpu_to_le32 (mod_size + sizeof (header));
|
||||
|
||||
pupa_util_info ("offset=0x%x, size=0x%x", header.offset, header.size);
|
||||
pupa_util_write_image ((char *) &header, sizeof (header), out);
|
||||
|
||||
mod_img = pupa_util_read_image (path_list->name);
|
||||
pupa_util_write_image (mod_img, mod_size, out);
|
||||
free (mod_img);
|
||||
|
||||
free ((void *) path_list->name);
|
||||
free (path_list);
|
||||
path_list = next;
|
||||
|
|
|
|||
24
util/misc.c
24
util/misc.c
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
||||
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
|
||||
*
|
||||
* PUPA is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -136,9 +136,31 @@ pupa_util_read_image (const char *path)
|
|||
if (fread (img, 1, size, fp) != size)
|
||||
pupa_util_error ("cannot read %s", path);
|
||||
|
||||
fclose (fp);
|
||||
|
||||
return img;
|
||||
}
|
||||
|
||||
void
|
||||
pupa_util_load_image (const char *path, char *buf)
|
||||
{
|
||||
FILE *fp;
|
||||
size_t size;
|
||||
|
||||
pupa_util_info ("reading %s", path);
|
||||
|
||||
size = pupa_util_get_image_size (path);
|
||||
|
||||
fp = fopen (path, "rb");
|
||||
if (! fp)
|
||||
pupa_util_error ("cannot open %s", path);
|
||||
|
||||
if (fread (buf, 1, size, fp) != size)
|
||||
pupa_util_error ("cannot read %s", path);
|
||||
|
||||
fclose (fp);
|
||||
}
|
||||
|
||||
void
|
||||
pupa_util_write_image (const char *img, size_t size, FILE *out)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue