From 6164839f3ee00436b32af3100c903ee152803117 Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Fri, 13 Dec 2013 14:05:00 +0100 Subject: [PATCH] compiler: Add OVS_CONSTRUCTOR to mark functions as init functions Functions marked with OVS_CONSTRUCTOR are called unconditionally before main. Tested with GCC. Untested with MSVC. Signed-off-by: Helmut Schaa Signed-off-by: Ben Pfaff --- lib/compiler.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/lib/compiler.h b/lib/compiler.h index 0dbacbfcc..daca32dd7 100644 --- a/lib/compiler.h +++ b/lib/compiler.h @@ -179,4 +179,17 @@ #define OVS_PACKED(DECL) __pragma(pack(push, 1)) DECL __pragma(pack(pop)) #endif +#ifdef _MSC_VER +#define CCALL __cdecl +#pragma section(".CRT$XCU",read) +#define OVS_CONSTRUCTOR(f) \ + static void __cdecl f(void); \ + __declspec(allocate(".CRT$XCU")) void (__cdecl*f##_)(void) = f; \ + static void __cdecl f(void) +#else +#define OVS_CONSTRUCTOR(f) \ + static void f(void) __attribute__((constructor)); \ + static void f(void) +#endif + #endif /* compiler.h */ -- 2.47.0