syslinux-5.10-pre2

Conflicts:
	NEWS
	com32/include/netinet/in.h
	com32/include/sys/cpu.h
	com32/lib/Makefile
	core/Makefile
	core/fs/diskio.c
	core/fs/pxe/pxe.h
	core/init.c
	core/mem/free.c
	core/mem/malloc.c
	mk/devel.mk
	version

Welcome to Syslinux 5.10.

Conflicts:
	NEWS
	com32/lib/Makefile
	com32/lib/sys/open.c
	com32/lib/syslinux/ipappend.c
	com32/modules/Makefile
	com32/modules/prdhcp.c
	core/Makefile
	core/cmdline.inc
	core/com32.inc
	core/comboot.inc
	core/configinit.inc
	core/fs/chdir.c
	core/fs/fs.c
	core/fs/pxe/dnsresolv.c
	core/fs/pxe/pxe.c
	core/fs/pxe/pxe.h
	core/idle.c
	core/include/ctype.h
	core/init.inc
	core/mem/init.c
	core/parseconfig.inc
	core/runkernel.inc
	core/syslinux.ld
	core/ui.inc
	doc/comboot.txt
	version

Pull in the latest prerelease that includes some bug fixes for ldlinux
and a realloc() bug in core/.

Conflicts:
	com32/cmenu/Makefile
	com32/elflink/ldlinux/Makefile
	com32/lib/Makefile
	core/pxelinux.asm

Instead of hard-coding the python executable name use a make variable
like we do for all other executables used during the build. This has
the added bonus of allowing $(PYTHON) to be overridden on the command
line, e.g.

   make PYTHON=python2

which is particularly useful for distributions where /usr/bin/python
is actually python3.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>

Conflicts:
	Makefile
	com32/elflink/ldlinux/adv.c
	com32/elflink/ldlinux/kernel.c
	com32/elflink/ldlinux/ldlinux.c
	com32/include/bitsize/stddef.h
	com32/include/bitsize/stdint.h
	com32/include/stdint.h
	com32/include/sys/module.h
	com32/include/sys/x86_64/bitops.h
	com32/include/syslinux/linux.h
	com32/lib/Makefile
	com32/lib/sys/ansicon_write.c
	com32/lib/sys/module/elfutils.h
	com32/lib/sys/vesa/efi/fill.h
	com32/lib/syslinux/load_linux.c
	com32/lib/syslinux/serial.c
	com32/lib/syslinux/shuffle.c
	core/conio.c
	core/elflink/config.c
	core/elflink/load_env32.c
	core/graphics.c
	core/include/graphics.h
	core/init.c
	core/pxelinux.asm
	mk/elf.mk
	mk/lib.mk

Pertinent changes are sprinkled through *.mk and Makefile in the syslinux tree.

Build architecture is specified at the command line via ARCH macro. This is to enable whether
one is building for the native platform or cross-building for a different architecture. Currently,
the only supported architectures via ARCH macro are i386 and x86_64.

There are some modules (e.g. memdump) that don't build under the EFI environment. To go forward
with efi boot support, a separate EFI_BUILD=1 macro has been added and is required to be
specified while building. This is a temporary solution for the current build environment.

example build:

On a x86_64 platform, the following cross-builds syslinux for i386
To build for i386: make EFI_BUILD=1 ARCH=i386

On a x86_64 platform, the following builds syslinux for x86_64
To build natively: make EFI_BUILD=1

Changes specific to GCC and LD options:

Architecture specific flags and include/search directories are set up for GCC and LD commands.
Internally, GCC options such as stack-boundary, PIC and machine architecture are set up
based on ARCH macro. While stack-boundary=2 is fine for i386, it does not work for x86_64
and so it is left to the default value. Using -fPIE with gcc does not work with ld on x86_64,
but -fPIC works fine. Similarly, target and elf options are set up for linking
as approrpriate for architecture.

Assumption about gnu-efi install path:

Since the EFI build supports both EFI32 and EFI64, the following assumptions
are made with regard to the installed location of gnu-efi on the build platform.
1. gnu-efi-ia32: assumed installed in /usr/local
[ EFI-32 include files in /usr/local/include/efi and gnu-efi library in /usr/local/lib/ ]
2. gnu-efi-x86_64: assumed installed in /usr
[ EFI-64 include files in /usr/include/efi and gnu-efi library in /usr/lib64/ ]

Remanants of the unused old i386-only files, if any, need to be pruned.

A lot of development has gone on in the 'master' branch since the last
time we merged; new features, bug fixes, etc, etc.

Conflicts:
	Makefile
	com32/Makefile
	com32/lib/Makefile
	com32/lib/syslinux/load_linux.c
	com32/modules/Makefile
	com32/modules/chain.c
	core/bootsect.inc
	core/init.inc
	version

Everything else in the system seems to use $(MAKEDIR), not
$(makefiledir)...

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

Add a "dprint" facility to the assembly files, which simply calls
dprintf if debugging is enabled.

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

Add a "make strip" target, to make doing the official build easier.
We want the official build to have stripped binaries for size reasons,
so do it right and make it an actual build target.

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