Conflicts:
	Makefile
	com32/elflink/ldlinux/Makefile
	com32/lib/sys/module/elf_module.c
	core/cleanup.c
	core/comboot.inc
	core/conio.c
	core/fs/fs.c
	core/init.c
	core/mem/free.c
	core/mem/malloc.c
	core/timer.inc
	diag/geodsp/Makefile
	extlinux/main.c
	mk/embedded.mk
	modules/Makefile

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

Before modules were dynamically loaded the boundary between GPL and
non-GPL code was implicit because of the separate link domains for
each module. With dynamic modules we need an explicit whitelist of
core symbols that non-GPL code can link against at runtime without
needing to be re-licensed under the GPL.

Mark such symbols with __export, so that it is explicitly clear which
symbols in the core can be linked against by non-GPL code.

Reduce the visibility of symbols in both the core and ldlinux.c32 with
-fvisibility=hidden. __export changes the visibility to 'default'.

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

Move the standard definitions of constants, variously-sized ints,limits into
respective architecture specific files. com32/include/bitsize holds the standard
header files that in turn include bitsize32 or bitsize64 based on the architecture.
The makefiles should build pick the right ones based on architecture.

Files com32/include/sys/cpu.h, com32/include/sys/bitops.h now have
architecture specific files underneath to define relevant macros definitions.

com32/include/setjmp.h has architecture specific counterparts underneath.

ssize_t in dos/stdlib.h is appropriately defined based on architecture to be able
to support building for 32bit and 64bit environments.

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

Move the __unused tag from com32/hdt/ to com32/include/klibc/ so that
it can be used by the entire code base, and mark unused function
parameters as __unused to stop the following kind of build warning,

elflink/load_env32.c: In function ‘load_env32’:
elflink/load_env32.c:107:30: warning: unused parameter ‘regs’

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

modify these files to make compile pass

	modified:   com32/MCONFIG
	modified:   com32/Makefile
	modified:   com32/include/klibc/compiler.h
	modified:   com32/include/sys/elfcommon.h
	modified:   com32/lib/Makefile
	modified:   com32/lib/free.c
	modified:   com32/lib/malloc.c

Automatically reformat com32/include/klibc/endian.h 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>

Automatically reformat com32/include/klibc/diverr.h 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>

Automatically reformat com32/include/klibc/archsetjmp.h 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>

- Constructed data objects can't be common.  Earlier version of
  gcc didn't if the objects were explicitly listed extern, but
  newer ones need an explicit __attribute__((nocommon)) or
  -fno-common.

- Make syslinux_derivative_info() save the entire reply.