x86: x86 i387 user_regset

This revamps the i387 code to be shared across 32-bit, 64-bit,
and 32-on-64.  It does so by consolidating the code in one place
based on the user_regset accessor interfaces.  This switches
32-bit to using the i387_64.h header and 64-bit to using the
i387.c that was previously i387_32.c, but that's what took the
least cleanup in each file.  Here i387.h is stubbed to always
include i387_64.h rather than renaming the file, to keep this
diff smaller and easier to read.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index fbb370071239..7fcf972aa5d6 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -7,7 +7,7 @@ CPPFLAGS_vmlinux.lds += -Ux86_64
 
 obj-y   := process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
                 time_64.o ioport_64.o ldt.o setup_64.o i8259_64.o sys_x86_64.o \
-                x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
+                x8664_ksyms_64.o syscall_64.o vsyscall_64.o \
                 setup64.o bootflag.o e820_64.o reboot_64.o quirks.o i8237.o \
                 pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
                 i8253.o io_delay.o rtc.o
@@ -16,6 +16,7 @@ obj-y				+= ptrace.o
 obj-y                           += ds.o
 obj-y                           += step.o
 
+obj-y                           += i387.o
 obj-$(CONFIG_IA32_EMULATION)    += tls.o
 obj-$(CONFIG_STACKTRACE)        += stacktrace.o
 obj-y                           += cpu/