kernel-ark/arch/um/Makefile-i386
Jeff Dike 42fda66387 uml: throw out CONFIG_MODE_TT
This patchset throws out tt mode, which has been non-functional for a while.

This is done in phases, interspersed with code cleanups on the affected files.

The removal is done as follows:
	remove all code, config options, and files which depend on
CONFIG_MODE_TT
	get rid of the CHOOSE_MODE macro, which decided whether to
call tt-mode or skas-mode code, and replace invocations with their
skas portions
	replace all now-trivial procedures with their skas equivalents

There are now a bunch of now-redundant pieces of data structures, including
mode-specific pieces of the thread structure, pt_regs, and mm_context.  These
are all replaced with their skas-specific contents.

As part of the ongoing style compliance project, I made a style pass over all
files that were changed.  There are three such patches, one for each phase,
covering the files affected by that phase but no later ones.

I noticed that we weren't freeing the LDT state associated with a process when
it exited, so that's fixed in one of the later patches.

The last patch is a tidying patch which I've had for a while, but which caused
inexplicable crashes under tt mode.  Since that is no longer a problem, this
can now go in.

This patch:

Start getting rid of tt mode support.

This patch throws out CONFIG_MODE_TT and all config options, code, and files
which depend on it.

CONFIG_MODE_SKAS is gone and everything that depends on it is included
unconditionally.

The few changed lines are in re-written Kconfig help, lines which needed
something skas-related removed from them, and a few more which weren't
strictly deletions.

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 09:43:05 -07:00

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core-y += arch/um/sys-i386/ arch/x86/crypto/
TOP_ADDR := $(CONFIG_TOP_ADDR)
START := 0x8048000
LDFLAGS += -m elf_i386
ELF_ARCH := $(SUBARCH)
ELF_FORMAT := elf32-$(SUBARCH)
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
HEADER_ARCH := x86
ifeq ("$(origin SUBARCH)", "command line")
ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
CFLAGS += $(call cc-option,-m32)
AFLAGS += $(call cc-option,-m32)
LINK-y += $(call cc-option,-m32)
UML_OBJCOPYFLAGS += -F $(ELF_FORMAT)
export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UML_OBJCOPYFLAGS
endif
endif
CFLAGS += -DCONFIG_X86_32
AFLAGS += -DCONFIG_X86_32
CONFIG_X86_32 := y
export CONFIG_X86_32
ARCH_KERNEL_DEFINES += -U__$(SUBARCH)__ -U$(SUBARCH)
# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
include $(srctree)/arch/i386/Makefile.cpu
# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
# Prevent sprintf in nfsd from being converted to strcpy and resulting in
# an unresolved reference.
cflags-y += -ffreestanding
CFLAGS += $(cflags-y)