[Intel-gfx] [PATCH i-g-t v2] igt_core: add igt_constructor
Paulo Zanoni
paulo.r.zanoni at intel.com
Wed Jan 4 17:20:49 UTC 2017
Em Qua, 2016-12-21 às 15:50 -0500, Lyude escreveu:
> 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.
IGT doesn't compile anymore here. Reverting this patch fixes it for me.
On a brand new git clone, if I just run autogen.sh, I get this:
./configure: line 6319: syntax error near unexpected token
`constructor'
./configure: line 6319: `AX_GCC_FUNC_ATTRIBUTE(constructor)'
The gcc/autoconf/etc versions are from Fedora 24.
I'm not sure what I'm missing here...
>
> Signed-off-by: Lyude <lyude at redhat.com>
>
> Changes since v1:
> - Add the line number into the name of the constructor function so
> that
> multiple constructors may be used per-file.
> ---
> 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..b669de3 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 \
> + __attribute__((constructor)) \
> + static void igt_tokencat(__igt_constructor_l,
> __LINE__)(void)
> +
> __attribute__((format(printf, 1, 2)))
> void igt_skip(const char *f, ...) __attribute__((noreturn));
> __attribute__((format(printf, 5, 6)))
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