WSL2-Linux-Kernel/arch/um/include/sysdep-x86_64
Jeff Dike 54ae36f24b uml: fix stub address calculations
The calculation of CONFIG_STUB_CODE and CONFIG_STUB_DATA didn't take into
account anything but 3G/1G and 2G/2G, leaving the other vmsplits out in the
cold.

I'd rather not duplicate the four known host vmsplit cases for each of these
symbols.  I'd also like to calculate them based on the highest userspace
address.

The Kconfig language seems not to allow calculation of hex constants, so I
moved this to as-layout.h.  CONFIG_STUB_CODE, CONFIG_STUB_DATA, and
CONFIG_STUB_START are now gone.  In their place are STUB_CODE, STUB_DATA, and
STUB_START in as-layout.h.

i386 and x86_64 seem to differ as to whether an unadorned constant is an int
or a long, so I cast them to unsigned long so they can be printed
consistently.  However, they are also used in stub.S, where C types don't work
so well.  So, there are ASM_ versions of these constants for use in stub.S.  I
also ifdef-ed the non-asm-friendly portion of as-layout.h.

With this in place, most of the rest of this patch is changing CONFIG_STUB_*
to STUB_*, except in stub.S, where they are changed to ASM_STUB_*.

defconfig has the old symbols deleted.

I also print these addresses out in case there is any problem mapping them on
the host.

The two stub.S files had some trailing whitespace, so that is cleaned up here.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:09 -07:00
..
archsetjmp.h fix file specification in comments 2007-05-09 08:58:16 +02:00
barrier.h [PATCH] uml: fix I/O hang 2006-11-03 12:27:58 -08:00
checksum.h [NET]: UML checksum annotations and cleanups. 2006-12-02 21:23:12 -08:00
faultinfo.h [PATCH] uml: S390 preparation, abstract host page fault data 2005-05-05 16:36:36 -07:00
kernel-offsets.h fix uml-x86_64 2007-05-15 18:56:37 -07:00
ptrace.h uml: eliminate floating point state from register file 2007-10-16 09:43:07 -07:00
ptrace_user.h Attack of "the the"s in arch 2006-10-03 22:21:02 +02:00
sc.h [PATCH] uml: fix missing x86_64 register definitions 2006-09-27 08:26:16 -07:00
sigcontext.h uml: style fixes in FP code 2007-10-16 09:43:07 -07:00
skas_ptrace.h [PATCH] uml: S390 preparation, abstract host page fault data 2005-05-05 16:36:36 -07:00
stub.h uml: fix stub address calculations 2007-10-16 09:43:09 -07:00
syscalls.h fix uml-x86_64 2007-05-15 18:56:37 -07:00
tls.h [PATCH] uml: tls support: hack to make it compile on any host 2006-03-31 12:18:52 -08:00