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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-11 01:33:37 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-11 01:33:37 +0100
commit4bde961e5245bb37dab4831107bbed23e433d55a (patch)
tree82379a3d40a076d7da82536fcf61921ff258bc48 /arch/x86
parentMerge tag 'metag-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/j... (diff)
parentum: Switch clocksource to hrtimers (diff)
downloadlinux-4bde961e5245bb37dab4831107bbed23e433d55a.tar.xz
linux-4bde961e5245bb37dab4831107bbed23e433d55a.zip
Merge branch 'for-linus-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger: - a new hrtimer based clocksource by Anton Ivanov - ptrace() enhancments by Richard Weinberger - random cleanups and bug fixes all over the place * 'for-linus-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Switch clocksource to hrtimers um: net: replace GFP_KERNEL with GFP_ATOMIC when spinlock is held um: Report host OOM more nicely um: Simplify STUB_DATA loading um: Remove dead symbol from i386 syscall stub um: Remove dead code from x86_64 syscall stub um: Get rid of open coded NR_SYSCALLS um: Store syscall number after syscall_trace_enter() um: Define PTRACE_OLDSETOPTIONS
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/um/stub_32.S1
-rw-r--r--arch/x86/um/stub_64.S18
2 files changed, 1 insertions, 18 deletions
diff --git a/arch/x86/um/stub_32.S b/arch/x86/um/stub_32.S
index b972649d3a18..98816804e131 100644
--- a/arch/x86/um/stub_32.S
+++ b/arch/x86/um/stub_32.S
@@ -1,6 +1,5 @@
#include <as-layout.h>
- .globl syscall_stub
.section .__syscall_stub, "ax"
.globl batch_syscall_stub
diff --git a/arch/x86/um/stub_64.S b/arch/x86/um/stub_64.S
index 7160b20172d0..ba914b3b8cc4 100644
--- a/arch/x86/um/stub_64.S
+++ b/arch/x86/um/stub_64.S
@@ -1,25 +1,9 @@
#include <as-layout.h>
- .globl syscall_stub
.section .__syscall_stub, "ax"
-syscall_stub:
- syscall
- /* We don't have 64-bit constants, so this constructs the address
- * we need.
- */
- movq $(STUB_DATA >> 32), %rbx
- salq $32, %rbx
- movq $(STUB_DATA & 0xffffffff), %rcx
- or %rcx, %rbx
- movq %rax, (%rbx)
- int3
-
.globl batch_syscall_stub
batch_syscall_stub:
- mov $(STUB_DATA >> 32), %rbx
- sal $32, %rbx
- mov $(STUB_DATA & 0xffffffff), %rax
- or %rax, %rbx
+ mov $(STUB_DATA), %rbx
/* load pointer to first operation */
mov %rbx, %rsp
add $0x10, %rsp