[Mesa-stable] [Mesa-dev] [PATCH v3] i965: compiler option msse2 and mstackrealign

[Lionel Landwerlin]

On 05/09/2018 12:14, Sergii Romantsov wrote:
> Seems in case of 32-bit library, usage of msse2 makes
> some stack corruption or incorrect instructions.
> Usage with mstackrealign fixes that case.
>
> v2: fixed meson
>
> v3: Definition of c_sse2_args moved on the top (L.Landwerlin).
>      Added mstackrealign for Android's mks where msee4.1 is used.
>
> CC: <mesa-stable at lists.freedesktop.org>
> Fixes: 6b05c080f202 (i965: Compile with -msse3)
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107779
> Signed-off-by: Sergii Romantsov <sergii.romantsov at globallogic.com>
> ---
>   src/intel/meson.build                 | 1 +
>   src/mesa/Android.libmesa_dricore.mk   | 2 +-
>   src/mesa/Android.libmesa_sse41.mk     | 2 +-
>   src/mesa/drivers/dri/i965/Makefile.am | 2 +-
>   src/mesa/drivers/dri/i965/meson.build | 6 +++---
>   5 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/src/intel/meson.build b/src/intel/meson.build
> index b3dcbdc..3c57e79 100644
> --- a/src/intel/meson.build
> +++ b/src/intel/meson.build
> @@ -18,6 +18,7 @@
>   # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
>   # SOFTWARE.
>   
> +c_sse2_args = ['-msse2', '-mstackrealign']
>   inc_intel = include_directories('.')


Like Eric mentioned, if you could also replace the couple of -sse2 in 
src/intel/vulkan/meson.build by concatenating c_sse2_args, that would be 
great.


Thanks a lot!


>   
>   subdir('blorp')
> diff --git a/src/mesa/Android.libmesa_dricore.mk b/src/mesa/Android.libmesa_dricore.mk
> index 34fd858..7921177 100644
> --- a/src/mesa/Android.libmesa_dricore.mk
> +++ b/src/mesa/Android.libmesa_dricore.mk
> @@ -49,7 +49,7 @@ ifeq ($(ARCH_X86_HAVE_SSE4_1),true)
>   LOCAL_WHOLE_STATIC_LIBRARIES := \
>   	libmesa_sse41
>   LOCAL_CFLAGS := \
> -	-msse4.1 \
> +	-msse4.1 -mstackrealign \
>          -DUSE_SSE41
>   endif
>   
> diff --git a/src/mesa/Android.libmesa_sse41.mk b/src/mesa/Android.libmesa_sse41.mk
> index da40f43..de19a1f 100644
> --- a/src/mesa/Android.libmesa_sse41.mk
> +++ b/src/mesa/Android.libmesa_sse41.mk
> @@ -34,7 +34,7 @@ LOCAL_SRC_FILES += \
>   	$(X86_SSE41_FILES)
>   
>   LOCAL_CFLAGS := \
> -	-msse4.1
> +	-msse4.1 -mstackrealign
>   
>   LOCAL_C_INCLUDES := \
>   	$(MESA_TOP)/src/mapi \
> diff --git a/src/mesa/drivers/dri/i965/Makefile.am b/src/mesa/drivers/dri/i965/Makefile.am
> index 889d4c6..0afa7a2 100644
> --- a/src/mesa/drivers/dri/i965/Makefile.am
> +++ b/src/mesa/drivers/dri/i965/Makefile.am
> @@ -44,7 +44,7 @@ AM_CFLAGS = \
>   	$(WNO_OVERRIDE_INIT) \
>   	$(LIBDRM_CFLAGS) \
>   	$(VALGRIND_CFLAGS) \
> -	-msse2
> +	-msse2 -mstackrealign
>   
>   AM_CXXFLAGS = $(AM_CFLAGS)
>   
> diff --git a/src/mesa/drivers/dri/i965/meson.build b/src/mesa/drivers/dri/i965/meson.build
> index 6c94f4a..b95e2d7 100644
> --- a/src/mesa/drivers/dri/i965/meson.build
> +++ b/src/mesa/drivers/dri/i965/meson.build
> @@ -142,7 +142,7 @@ foreach v : ['40', '45', '50', '60', '70', '75', '80', '90', '100', '110']
>       ['genX_blorp_exec.c', 'genX_state_upload.c', gen_xml_pack],
>       include_directories : [inc_common, inc_intel, inc_dri_common],
>       c_args : [
> -      c_vis_args, no_override_init_args, '-msse2',
> +      c_vis_args, no_override_init_args, c_sse2_args,
>         '-DGEN_VERSIONx10=@0@'.format(v),
>       ],
>       dependencies : [dep_libdrm, idep_nir_headers],
> @@ -183,8 +183,8 @@ libi965 = static_library(
>     include_directories : [
>       inc_common, inc_intel, inc_dri_common, inc_util, inc_drm_uapi,
>     ],
> -  c_args : [c_vis_args, no_override_init_args, '-msse2'],
> -  cpp_args : [cpp_vis_args, '-msse2'],
> +  c_args : [c_vis_args, no_override_init_args, c_sse2_args],
> +  cpp_args : [cpp_vis_args, c_sse2_args],
>     link_with : [
>       i965_gen_libs, libintel_common, libintel_dev, libisl, libintel_compiler,
>       libblorp,