Re: [PATCH v1 1/4] target/ppc: fix signal delivery for ppc64abi32

["Alex Bennée" <alex.bennee@linaro.org>]

Alex Bennée <alex.bennee@linaro.org> writes:

> We were incorrectly setting NIP resulting in a segfault. This fixes
> linux-test for this ABI.

Oops, that was at the bottom of my tree for fixing ppc64abi32 which
showed up broken when testing/next enabled the TCG tests for it.

>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  linux-user/ppc/signal.c             | 4 +++-
>  tests/tcg/configure.sh              | 1 +
>  tests/tcg/multiarch/Makefile.target | 5 -----
>  3 files changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
> index 619a56950df..5b82af6cb62 100644
> --- a/linux-user/ppc/signal.c
> +++ b/linux-user/ppc/signal.c
> @@ -501,7 +501,9 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
>      int i, err = 0;
>  #if defined(TARGET_PPC64)
>      struct target_sigcontext *sc = 0;
> +#if !defined(TARGET_ABI32)
>      struct image_info *image = ((TaskState *)thread_cpu->opaque)->info;
> +#endif
>  #endif
>
>      rt_sf_addr = get_sigframe(ka, env, sizeof(*rt_sf));
> @@ -557,7 +559,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
>      env->gpr[5] = (target_ulong) h2g(&rt_sf->uc);
>      env->gpr[6] = (target_ulong) h2g(rt_sf);
>
> -#if defined(TARGET_PPC64)
> +#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
>      if (get_ppc64_abi(image) < 2) {
>          /* ELFv1 PPC64 function pointers are pointers to OPD entries. */
>          struct target_func_ptr *handler =
> diff --git a/tests/tcg/configure.sh b/tests/tcg/configure.sh
> index 6c4a471aeae..e8a1a1495fc 100755
> --- a/tests/tcg/configure.sh
> +++ b/tests/tcg/configure.sh
> @@ -54,6 +54,7 @@ fi
>  : ${cross_cc_cflags_ppc="-m32"}
>  : ${cross_cc_ppc64="powerpc-linux-gnu-gcc"}
>  : ${cross_cc_cflags_ppc64="-m64"}
> +: ${cross_cc_cflags_ppc64abi32="-mcpu=power8"}
>  : ${cross_cc_ppc64le="powerpc64le-linux-gnu-gcc"}
>  : ${cross_cc_cflags_s390x="-m64"}
>  : ${cross_cc_cflags_sparc="-m32 -mv8plus -mcpu=ultrasparc"}
> diff --git a/tests/tcg/multiarch/Makefile.target b/tests/tcg/multiarch/Makefile.target
> index 6b1e30e2fec..e6893b2e283 100644
> --- a/tests/tcg/multiarch/Makefile.target
> +++ b/tests/tcg/multiarch/Makefile.target
> @@ -12,11 +12,6 @@ VPATH 		+= $(MULTIARCH_SRC)
>  MULTIARCH_SRCS   =$(notdir $(wildcard $(MULTIARCH_SRC)/*.c))
>  MULTIARCH_TESTS  =$(MULTIARCH_SRCS:.c=)
>
> -# FIXME: ppc64abi32 linux-test seems to have issues but the other basic tests work
> -ifeq ($(TARGET_NAME),ppc64abi32)
> -BROKEN_TESTS = linux-test
> -endif
> -
>  # Update TESTS
>  TESTS		+= $(filter-out $(BROKEN_TESTS), $(MULTIARCH_TESTS))


--
Alex Bennée