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* 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.
36 lines
1.2 KiB
Text
36 lines
1.2 KiB
Text
New in 0.7:
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* Problems in cross-compiling PUPA are fixed.
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* Use -mrtd and -mregparm=3 to reduce the generated code sizes. This
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means that any missing prototypes could be fatal. Also, you must take
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care when writing assembly code. See the comments at the beginning of
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startup.S, for more details.
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* New utility, ``pupa-setup''. This sets up PUPA to make it bootable
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from a real disk.
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* New commands, "prefix", "insmod", "rmmod" and "lsmod" are added into
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the rescue mode to manipulate PUPA modules.
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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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* The chainloader and the FAT filesystem are modularized.
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* The structure of the source tree is a bit changed.
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* Support for building loadable modules is added.
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* Some generic parts of pupa-mkimage are segregated.
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* Some documentation files are added, according to the GNU Coding
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Standards.
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