This is a simple macro for executing a block of code at the beginning of intel-gpu-tools, before any tests have been ran. Useful for initialization of global resources used in IGT libraries. Signed-off-by: Lyude <lyude@xxxxxxxxxx> --- configure.ac | 1 + lib/igt_core.h | 13 +++++++++++++ 2 files changed, 14 insertions(+) diff --git a/configure.ac b/configure.ac index fa31a52..411bfab 100644 --- a/configure.ac +++ b/configure.ac @@ -65,6 +65,7 @@ AC_CHECK_TYPES([sighandler_t],[],[],[AC_INCLUDES_DEFAULT #include <signal.h>]) AC_CHECK_FUNCS([swapctl]) AC_CHECK_FUNCS([asprintf]) +AX_GCC_FUNC_ATTRIBUTE([constructor]) dnl Check for POSIX timers AC_CHECK_FUNCS(timer_create, [], [ diff --git a/lib/igt_core.h b/lib/igt_core.h index 661a634..e76fd5f 100644 --- a/lib/igt_core.h +++ b/lib/igt_core.h @@ -281,6 +281,19 @@ void igt_simple_init_parse_opts(int *argc, char **argv, } \ static void igt_tokencat(__real_main, __LINE__)(void) \ +/** + * igt_constructor: + * + * Convenience macro to run the provided code block when igt first starts, + * before any tests have been run. This should be used for parts of the igt + * library that require initialization of objects with global context. + * + * This code block will be executed exactly once. + */ +#define igt_constructor \ + static void __igt_constructor_block(void) __attribute__((constructor)); \ + static void __igt_constructor_block(void) + __attribute__((format(printf, 1, 2))) void igt_skip(const char *f, ...) __attribute__((noreturn)); __attribute__((format(printf, 5, 6))) -- 2.9.3 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
