<div dir="ltr">"slightly?" More like hugely. ;)<div><br></div><div>However, local statics are not thread safe with MSVC yet. You may want to use something like InitOnceExecuteOnce: <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms683493(v=vs.85).aspx">http://msdn.microsoft.com/en-us/library/windows/desktop/ms683493(v=vs.85).aspx</a></div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Sep 23, 2013 at 4:40 AM, Timur Iskhodzhanov <span dir="ltr"><<a href="mailto:timurrrr@google.com" target="_blank">timurrrr@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: timurrrr<br>
Date: Mon Sep 23 06:40:58 2013<br>
New Revision: 191190<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=191190&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=191190&view=rev</a><br>
Log:<br>
[ASan/Win] Slightly optimize the DLL thunk<br>
<br>
Modified:<br>
compiler-rt/trunk/lib/asan/asan_dll_thunk.cc<br>
<br>
Modified: compiler-rt/trunk/lib/asan/asan_dll_thunk.cc<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_dll_thunk.cc?rev=191190&r1=191189&r2=191190&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_dll_thunk.cc?rev=191190&r1=191189&r2=191190&view=diff</a><br>
==============================================================================<br>
--- compiler-rt/trunk/lib/asan/asan_dll_thunk.cc (original)<br>
+++ compiler-rt/trunk/lib/asan/asan_dll_thunk.cc Mon Sep 23 06:40:58 2013<br>
@@ -38,63 +38,63 @@ static void *getRealProcAddressOrDie(con<br>
#define WRAP_V_V(name) \<br>
extern "C" void name() { \<br>
typedef void (*fntype)(); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
fn(); \<br>
}<br>
<br>
#define WRAP_V_W(name) \<br>
extern "C" void name(void *arg) { \<br>
typedef void (*fntype)(void *arg); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
fn(arg); \<br>
}<br>
<br>
#define WRAP_V_WW(name) \<br>
extern "C" void name(void *arg1, void *arg2) { \<br>
typedef void (*fntype)(void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
fn(arg1, arg2); \<br>
}<br>
<br>
#define WRAP_V_WWW(name) \<br>
extern "C" void name(void *arg1, void *arg2, void *arg3) { \<br>
typedef void *(*fntype)(void *, void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
fn(arg1, arg2, arg3); \<br>
}<br>
<br>
#define WRAP_W_V(name) \<br>
extern "C" void *name() { \<br>
typedef void *(*fntype)(); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(); \<br>
}<br>
<br>
#define WRAP_W_W(name) \<br>
extern "C" void *name(void *arg) { \<br>
typedef void *(*fntype)(void *arg); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg); \<br>
}<br>
<br>
#define WRAP_W_WW(name) \<br>
extern "C" void *name(void *arg1, void *arg2) { \<br>
typedef void *(*fntype)(void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg1, arg2); \<br>
}<br>
<br>
#define WRAP_W_WWW(name) \<br>
extern "C" void *name(void *arg1, void *arg2, void *arg3) { \<br>
typedef void *(*fntype)(void *, void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg1, arg2, arg3); \<br>
}<br>
<br>
#define WRAP_W_WWWW(name) \<br>
extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4) { \<br>
typedef void *(*fntype)(void *, void *, void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg1, arg2, arg3, arg4); \<br>
}<br>
<br>
@@ -102,7 +102,7 @@ static void *getRealProcAddressOrDie(con<br>
extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4, \<br>
void *arg5) { \<br>
typedef void *(*fntype)(void *, void *, void *, void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg1, arg2, arg3, arg4, arg5); \<br>
}<br>
<br>
@@ -110,7 +110,7 @@ static void *getRealProcAddressOrDie(con<br>
extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4, \<br>
void *arg5, void *arg6) { \<br>
typedef void *(*fntype)(void *, void *, void *, void *, void *, void *); \<br>
- fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
+ static fntype fn = (fntype)getRealProcAddressOrDie(#name); \<br>
return fn(arg1, arg2, arg3, arg4, arg5, arg6); \<br>
}<br>
// }}}<br>
<br>
<br>
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</blockquote></div><br></div>