Nick,
On Sat, May 12, 2018 at 5:35 AM, Nicholas Piggin <npig...@gmail.com> wrote:
> The exec_target binary could segfault calling _exit(2) because r13
> is not set up properly (and libc looks at that when performing a
> syscall). Call SYS_exit using syscall(2) which doesn't seem to
> have this problem.
>
> Signed-off-by: Nicholas Piggin <npig...@gmail.com>
> ---
> tools/testing/selftests/powerpc/benchmarks/exec_target.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/powerpc/benchmarks/exec_target.c
> b/tools/testing/selftests/powerpc/benchmarks/exec_target.c
> index 3c9c144192be..c14b0fc1edde 100644
> --- a/tools/testing/selftests/powerpc/benchmarks/exec_target.c
> +++ b/tools/testing/selftests/powerpc/benchmarks/exec_target.c
> @@ -6,8 +6,11 @@
> * Copyright 2018, Anton Blanchard, IBM Corp.
> */
>
> -void _exit(int);
> +#define _GNU_SOURCE
> +#include <unistd.h>
> +#include <sys/syscall.h>
> +
> void _start(void)
> {
> - _exit(0);
> + syscall(SYS_exit, 0);
> }
> --
> 2.17.0
>
Could you please apply the same patch to :
./tools/testing/selftests/size/get_size.c
It segfault on ppc32 with default cross compiler from Debian.
Thanks
