Hi,
On Mon, Feb 29, 2016 at 10:36:53AM +0000, Frediano Ziglio wrote:
> Allow to define functions executed at program/shared object initialization
> or close.
>
> Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> ---
> common/macros.h | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/common/macros.h b/common/macros.h
> index 47289be..fe36929 100644
> --- a/common/macros.h
> +++ b/common/macros.h
> @@ -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 */
> --
> 2.5.0
Testes, works without issues.
I'm wondering why not to include the whole header from glib [0] and
maybe file a bug to ask them to export in the future.
[0] https://git.gnome.org/browse/glib/tree/glib/gconstructor.h
Then, in case G_HAS_CONSTRUCTORS is not defined we can include different
arch constructors. What do you think?
PS: while looking for an open bug:
aix: https://bugzilla.gnome.org/show_bug.cgi?id=763560
hp-ux/ia: https://bugzilla.gnome.org/show_bug.cgi?id=763466
cheers,
toso
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