On Mon, Oct 14, 2019 at 2:09 AM Andreas Krebbel <kreb...@linux.ibm.com> wrote:
>
> Since the update to Go 1.13beta1 the kdsaQuery function is expected to
> be present. However, it is not with GCCGO since the assembler file
> from GOLANG cannot be understood by gas. This patch adds an inline
> assembly implementation to cpu_gccgo.c.
Thanks.
Committed to trunk.
Ian
> 2019-10-14 Andreas Krebbel <kreb...@linux.ibm.com>
>
> * libgo/go/internal/cpu/cpu_gccgo.c:
> ---
> libgo/go/internal/cpu/cpu_gccgo.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/libgo/go/internal/cpu/cpu_gccgo.c
> b/libgo/go/internal/cpu/cpu_gccgo.c
> index ed0e7bff8cd..76b99cb00a0 100644
> --- a/libgo/go/internal/cpu/cpu_gccgo.c
> +++ b/libgo/go/internal/cpu/cpu_gccgo.c
> @@ -184,4 +184,19 @@ struct queryResult klmdQuery() {
> return ret;
> }
>
> +struct queryResult kdsaQuery(void)
> + __asm__(GOSYM_PREFIX "internal..z2fcpu.kdsaQuery")
> + __attribute__((no_split_stack));
> +
> +struct queryResult kdsaQuery() {
> + struct queryResult ret;
> +
> + __asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KDSA-Query)
> + "la %%r1, %[ret]\t\n"
> + ".long 0xb93a0024\t\n" // kdsa
> + :[ret] "=QRST" (ret) : : "r0", "r1", "cc");
> +
> + return ret;
> +}
> +
> #endif /* defined(__s390x__) */
> --
> 2.23.0
>
