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It has been observed that binaries contents
are depending on the order of linked objects.
This order is caused by GNU make's wildcard function
and the position of sources on filesystem.
This change tries to prevent this kind of randomness.
Also consider building using -j1 flag
to make it even more reproductible.
Change-Id: Ie8eee7f336e6f1fa2863c4150d967afd15519f1d
Bug: http://bugzilla.syslinux.org/show_bug.cgi?id=57#related
Signed-off-by: Philippe Coval <philippe.coval at open.eurogiciel.org>
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Use version 2.07 of the LZO compression library.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Now that we have multiple firmware backends it no longer makes sense
to write object files to the same directory as their source. A better
solution is to write the object files to a per-firmware directory
under a top-level object directory.
The top-level object directory can be specified on the command-line
with the O= variable, e.g. make O=/tmp/obj. If no top-level object
directory is specified an 'obj' directory is created in the top-level
of the Syslinux source repository.
All the existing make targets continue to work as before, however now
they apply to all firmware backends, e.g. 'make installer' will build
the BIOS, 32-bit EFI and 64-bit EFI installers and place them under
$(OBJ)/bios, $(OBJ)/efi32 and $(OBJ)/efi64 respectively.
Note unlike every other bit of Syslinux, the gpxe objects are still
kept in the src directory, e.g. gpxe/src, since gpxe is only required
by the BIOS backend.
It is possible to specify a make target for a specific firmware or
list of firmware with the following syntax,
make [firmware[,firmware]] [target[,target]]
To clean the object directory for just the BIOS firmware type,
'make bios clean'
To build both the 32-bit and 64-bit EFI installers type,
'make efi32 efi64 installer'
Since the Syslinux make infrastructure is now more complex a new file
doc/building.txt has been created to explain how to build Syslinux.
The top-level Makefile now exports some make variables for use in
module Makefiles,
- topdir - the top-level source directory of the Syslinux
repository, e.g. /usr/src/syslinux
- objdir - the top-level object directory for the firmware
backend currently being built, e.g. /obj/syslinux/bios
- SRC - the source directory in the Syslinux repository for the
module currently being built,
e.g. /usr/src/syslinux/com32/libupload
- OBJ - the object directory for the module currently being
built, e.g. /obj/syslinux/bios/com32/libupload
Since we're rewriting the Makefile infrastructure anyway it seemed
like a good idea to add parallel support. By writing subdirectories as
prequisites for make targets the objects in those subdirectories can
be built in parallel.
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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We need the recent Makefile filename changes to be merged into the
elflink branch because it will make things simpler when converting all
modules to ELF format.
Conflicts:
com32/Makefile
com32/modules/Makefile
version
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Move the MCONFIG files into a mk/ directory and give them more
descriptive names.
This is purely a cosmetic change to make the 'include' directives a
bit more coherent by making it obvious exactly which MCONFIG file
we're including. For example, in com32/lua/src/Makefile we exchange
the line,
include ../../MCONFIG
for the much more comprehensible,
include $(MAKEDIR)/com32.mk
Signed-off-by: Matt Fleming <matt.fleming@linux.intel.com>
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Create new .gitignore files and add generated files to them.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Make error() automatically generate newline, to make the code a bit
cleaner looking.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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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>
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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>
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Do a full binary comparison between the decompressed output and what
we started with.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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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>
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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>
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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>
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