Detlef Riekenberg : ntdll: Read the current processor with the __NR_getcpu syscall.
Alexandre Julliard
julliard at winehq.org
Mon May 21 15:31:07 CDT 2012
Module: wine
Branch: master
Commit: 979099a441682c99ee0c1ee1fab5e1de635a579c
URL: http://source.winehq.org/git/wine.git/?a=commit;h=979099a441682c99ee0c1ee1fab5e1de635a579c
Author: Detlef Riekenberg <wine.dev at web.de>
Date: Fri May 18 01:03:31 2012 +0200
ntdll: Read the current processor with the __NR_getcpu syscall.
---
dlls/ntdll/thread.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/dlls/ntdll/thread.c b/dlls/ntdll/thread.c
index b34e279..881d961 100644
--- a/dlls/ntdll/thread.c
+++ b/dlls/ntdll/thread.c
@@ -30,6 +30,9 @@
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
+#ifdef HAVE_SYS_SYSCALL_H
+#include <sys/syscall.h>
+#endif
#define NONAMELESSUNION
#include "ntstatus.h"
@@ -1184,6 +1187,11 @@ ULONG WINAPI NtGetCurrentProcessorNumber(void)
{
ULONG processor;
+#if defined(__linux__) && defined(__NR_getcpu)
+ int res = syscall(__NR_getcpu, &processor);
+ if (res != -1) return processor;
+#endif
+
if (NtCurrentTeb()->Peb->NumberOfProcessors > 1)
{
ULONG_PTR thread_mask, processor_mask;
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