From 4bdf8bc4a15d4540d71db9fa01955db5edcf89ec Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 4 Feb 2008 22:30:44 -0800 Subject: uml: borrow const.h techniques Suggested by Geert Uytterhoeven - use const.h to get constants that are usable in both C and assembly. I can't include it directly since this code can't include kernel headers. const.h is also for numeric constants that can be typed by tacking a "UL" or similar on the end. The constants here have to be typed by casting them. So, the relevant parts of const.h are copied here and modified in order to allow the constants to be uncasted in assembly and casted in C. Signed-off-by: Jeff Dike Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/sys-x86_64/stub.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/um/sys-x86_64') diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S index 4afe204a6af7..568768763155 100644 --- a/arch/um/sys-x86_64/stub.S +++ b/arch/um/sys-x86_64/stub.S @@ -8,18 +8,18 @@ syscall_stub: /* We don't have 64-bit constants, so this constructs the address * we need. */ - movq $(ASM_STUB_DATA >> 32), %rbx + movq $(STUB_DATA >> 32), %rbx salq $32, %rbx - movq $(ASM_STUB_DATA & 0xffffffff), %rcx + movq $(STUB_DATA & 0xffffffff), %rcx or %rcx, %rbx movq %rax, (%rbx) int3 .globl batch_syscall_stub batch_syscall_stub: - mov $(ASM_STUB_DATA >> 32), %rbx + mov $(STUB_DATA >> 32), %rbx sal $32, %rbx - mov $(ASM_STUB_DATA & 0xffffffff), %rax + mov $(STUB_DATA & 0xffffffff), %rax or %rax, %rbx /* load pointer to first operation */ mov %rbx, %rsp -- cgit v1.2.3-59-g8ed1b