[OE-core] [PATCH] webkitgtk: Switch the ARMv7 build to Thumb2 and enable back the JSC JIT.

[Khem Raj]

On Mon, Jul 18, 2016 at 2:19 PM, Carlos Alberto Lopez Perez
<clopez at igalia.com> wrote:
> * The JSC JIT is broken on ARMv7 without Thumb2.
>
> [YOCTO #9474]
>
> Signed-off-by: Carlos Alberto Lopez Perez <clopez at igalia.com>
> ---
>  meta/recipes-sato/webkit/webkitgtk_2.12.3.bb | 17 ++++++++++++-----
>  1 file changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.3.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.3.bb
> index c5e5432..536fa23 100644
> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.3.bb
> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.3.bb
> @@ -71,10 +71,6 @@ EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>  EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>  EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>
> -# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
> -# displaying problems or ephiphany hang.
> -EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
> -
>  # binutils 2.25.1 has a bug on aarch64:
>  # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
>  EXTRA_OECMAKE_append_aarch64 = " -DUSE_LD_GOLD=OFF "
> @@ -89,7 +85,18 @@ SECURITY_CFLAGS_append_aarch64 = " -fPIE"
>  FILES_${PN} += "${libdir}/webkit2gtk-4.0/injected-bundle/libwebkit2gtkinjectedbundle.so"
>
>  # http://errors.yoctoproject.org/Errors/Details/20370/
> -ARM_INSTRUCTION_SET = "arm"
> +ARM_INSTRUCTION_SET_armv4 = "arm"
> +ARM_INSTRUCTION_SET_armv5 = "arm"
> +ARM_INSTRUCTION_SET_armv6 = "arm"
> +
> +# https://bugzilla.yoctoproject.org/show_bug.cgi?id=9474
> +# https://bugs.webkit.org/show_bug.cgi?id=159880
> +# JSC JIT can build on ARMv7 with -marm, but doesn't work on runtime.
> +# Upstream only tests regularly the JSC JIT on ARMv7 with Thumb2 (-mthumb).
> +ARM_INSTRUCTION_SET_armv7a = "thumb"
> +ARM_INSTRUCTION_SET_armv7r = "thumb"
> +ARM_INSTRUCTION_SET_armv7m = "thumb"
> +ARM_INSTRUCTION_SET_armv7ve = "thumb"

This should be ok. Do we need to specify 'm' ?
they should be thumb only anyway

>
>  # Invalid data memory access: 0x00000000
>  # ...
> --
> 2.1.4
>
> --
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