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define SPICE_CONSTRUCTOR_FUNC and SPICE_DESTRUCTOR_FUNC macros

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Allow to define functions executed at program/shared object initialization
or close.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Victor Toso <victortoso@redhat.com>
This commit is contained in:
Frediano Ziglio 2016-02-27 19:37:50 +00:00
parent 0f45924f4c
commit 2505f9ac96
1 changed files with 22 additions and 0 deletions
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22
common/macros.h
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@ -29,5 +29,27 @@
#define SPICE_ATTR_PRINTF
#endif /* __GNUC__ */
#ifdef __GNUC__
#define SPICE_CONSTRUCTOR_FUNC(func_name) \
static void __attribute__((constructor)) func_name(void)
#define SPICE_DESTRUCTOR_FUNC(func_name) \
static void __attribute__((destructor)) func_name(void)
#elif defined(_MSC_VER)
#define SPICE_CONSTRUCTOR_FUNC(func_name) \
static void func_name(void); \
static int func_name ## _wrapper(void) { func_name(); return 0; } \
__pragma(section(".CRT$XCU",read)) \
__declspec(allocate(".CRT$XCU")) static int (* _array ## func_name)(void) = func_name ## _wrapper; \
static void func_name(void)
#define SPICE_DESTRUCTOR_FUNC(func_name) \
static void func_name(void); \
static int func_name ## _wrapper(void) { func_name(); return 0; } \
__pragma(section(".CRT$XPU",read)) \
__declspec(allocate(".CRT$XPU")) static int (* _array ## func_name)(void) = func_name ## _wrapper; \
static void func_name(void)
#else
#error Please implement SPICE_CONSTRUCTOR_FUNC and SPICE_DESTRUCTOR_FUNC for this compiler
#endif
#endif /* __MACROS_H */