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| author | Helmut Schaa <helmut.schaa@googlemail.com> | 2013-12-13 14:05:00 +0100 |
|---|---|---|
| committer | Ben Pfaff <blp@nicira.com> | 2013-12-13 09:14:29 -0800 |
| commit | 6164839f3ee00436b32af3100c903ee152803117 (patch) | |
| tree | 01484ca8c683feb42599b92342a2ef08cba877cc /lib/compiler.h | |
| parent | 42efb1dc451ebdd7a37ef27a4df7423df74d423c (diff) | |
| download | openvswitch-6164839f3ee00436b32af3100c903ee152803117.tar.gz | |
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 <helmut.schaa@googlemail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Diffstat (limited to 'lib/compiler.h')
| -rw-r--r-- | lib/compiler.h | 13 |
1 files changed, 13 insertions, 0 deletions
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 */ |