summaryrefslogtreecommitdiffstats
path: root/arch/um/sys-x86_64
diff options
context:
space:
mode:
authorJeff Dike <jdike@addtoit.com>2008-02-04 22:30:44 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:26 -0800
commit4bdf8bc4a15d4540d71db9fa01955db5edcf89ec (patch)
tree9df4b5960104a8143b00af27ae6474145c36c0b1 /arch/um/sys-x86_64
parentee56314b79039b669396ee04aac3e342cd2e5a1f (diff)
downloadop-kernel-dev-4bdf8bc4a15d4540d71db9fa01955db5edcf89ec.zip
op-kernel-dev-4bdf8bc4a15d4540d71db9fa01955db5edcf89ec.tar.gz
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 <jdike@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/sys-x86_64')
-rw-r--r--arch/um/sys-x86_64/stub.S8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S
index 4afe204..5687687 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
OpenPOWER on IntegriCloud