Signed-off-by: Michal Soltys <soltys@ziu.info>
Signed-off-by: Gene Cumm <gene.cumm@gmail.com>

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

- add some comments to clarify c{nul,add,max} modes
- use enums instead of defines
- remove unnecessary integer casts
- avoid casts and uninline guid_is0()
- minor handover comment/flow changes
- clean up some old comment-outs
- add -fno-strict-aliasing as it's not picked anymore by default for
  elf.mk

Signed-off-by: Michal Soltys <soltys@ziu.info>

Licenses:

chain.[ch] Makefile: GPLv2+
the rest: MIT

Defines:

Avoid prefixing with _

Signed-off-by: Michal Soltys <soltys@ziu.info>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Shao Miller <sha0.miller@gmail.com>

Conflicts:
	Makefile
	NEWS
	com32/cmenu/Makefile
	com32/elflink/ldlinux/Makefile
	com32/gfxboot/Makefile
	com32/gpllib/Makefile
	com32/include/sys/module.h
	com32/lib/Makefile
	com32/lib/sys/module/elf_module.c
	com32/menu/Makefile
	com32/rosh/Makefile
	com32/samples/Makefile
	core/init.c
	mk/elf.mk

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

Always strip the modules; they are too big unstripped.  Specifically,
we generate unstripped *.elf files, and then convert them to
stripped *.c32 files.

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

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>

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

Conflicts:
	com32/Makefile
	com32/modules/chain.c

Note: add ReactOS' stuff introduced in old chain.c

Signed-off-by: Michal Soltys <soltys@ziu.info>

This patch adds 3 modes of operation to lba2chs:

l2c_cnul - strict cylinder mode, using at most the value returned by
13h/48h or 13h/08h

l2c_cadd - allow using 1 cylinder more. Only if cylinders are less than
1024 and total drive's lba size is not on a cylinder boundary.

l2c_max - allow using any cylinder number.

Modes have effect only if CHS geometry (cbios) is valid. chain.c uses
l2c_cadd.

Signed-off-by: Michal Soltys <soltys@ziu.info>