Create new .gitignore files and add generated files to them.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Make error() automatically generate newline, to make the code a bit
cleaner looking.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Style cleanups in lzo/prepcore.c.  Add an error() function and an
error-checking zeroing memory allocator (xzalloc).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Export, from each loader stage, the symbol MaxLMA which indicates to
prepcore how big the image is allowed to be.  Change prepcore to
enforce this limit and to error out otherwise.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Do a full binary comparison between the decompressed output and what
we started with.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Automatically reformat lzo/prepcore.c using Nindent.

Do this for all files except HDT, gPXE and externally maintained
libraries (zlib, tinyjpeg, libpng).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Fix the calculation of the ISOLINUX padding size.  Add stylistic
cleanups and remove code that we don't care about (e.g. LZO1Y).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Use LZO to compress the PM part of the core.  LZO is not the best
compression algorithm, but it is very fast, and the decompressor is
only 447 bytes long.  The LZO code is part of the LZO 2.03 library.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>