[oe] [meta-java][PATCH 1/2] openjdk-8: fix build for gcc8.x

[Richard Leitner]

Hi,
this is a note to let you know that I've just added this patch to the
master-next branch of the meta-java repository at
	git://git.yoctoproject.org/meta-java

As soon as it has gone through some more testing it will likely be
merged to the master branch.

If you have any questions, please let me know.

regards;Richard.L

On 06/15/2018 12:49 AM, Richard Leitner wrote:
> Currently oe-core/YoctoProject migrated to gcc8.x. This update broke our
> openjdk-8 and openjre-8 build. This patch avoids this problem by disabling
> the problematic gcc warnings and errors.
> 
> Signed-off-by: Richard Leitner <richard.leitner at skidata.com>
> ---
>  recipes-core/openjdk/openjdk-8-release-16xbyy.inc   |  1 +
>  .../patches-openjdk-8/hotspot_fix_gcc8x_build.patch | 21 +++++++++++++++++++++
>  2 files changed, 22 insertions(+)
>  create mode 100644 recipes-core/openjdk/patches-openjdk-8/hotspot_fix_gcc8x_build.patch
> 
> diff --git a/recipes-core/openjdk/openjdk-8-release-16xbyy.inc b/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
> index bd4a349..7ca0997 100644
> --- a/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
> +++ b/recipes-core/openjdk/openjdk-8-release-16xbyy.inc
> @@ -16,6 +16,7 @@ PATCHES_URI = "\
>      file://0008-jdk-use-correct-include-for-signal.patch \
>      file://0009-jdk-disable-backtrace-musl-build-fix.patch \
>      file://0010-build-fix-build-on-as-needed-toolchains-generic.patch \
> +    file://hotspot_fix_gcc8x_build.patch \
>  "
>  # some patches extracted from http://cr.openjdk.java.net/~rkennke/shark-build-hotspot/webrev.01/hotspot.patch
>  # reported via http://mail.openjdk.java.net/pipermail/build-dev/2015-January/013972.html
> diff --git a/recipes-core/openjdk/patches-openjdk-8/hotspot_fix_gcc8x_build.patch b/recipes-core/openjdk/patches-openjdk-8/hotspot_fix_gcc8x_build.patch
> new file mode 100644
> index 0000000..1a406f2
> --- /dev/null
> +++ b/recipes-core/openjdk/patches-openjdk-8/hotspot_fix_gcc8x_build.patch
> @@ -0,0 +1,21 @@
> +From: Richard Leitner <richard.leitner at skidata.com>
> +Date: Thu, 14 Jun 2018 23:42:11 +0200
> +Subject: [PATCH] openjdk-8: hotspot: fix gcc8 compilation
> +
> +As oe-core/yocto-project master migrated to gcc8.x we need to support this.
> +Therefore disable following gcc warnings/errors which caused the build to fail:
> +  + stringop-overflow
> +  + return-type
> +---
> +
> +--- a/hotspot/make/linux/makefiles/gcc.make
> ++++ b/hotspot/make/linux/makefiles/gcc.make
> +@@ -197,7 +197,7 @@
> + endif
> + 
> + # Compiler warnings are treated as errors
> +-WARNINGS_ARE_ERRORS = -Werror
> ++WARNINGS_ARE_ERRORS = -Werror -Wno-stringop-overflow -Wno-error=return-type
> + 
> + ifeq ($(USE_CLANG), true)
> +   # However we need to clean the code up before we can unrestrictedly enable this option with Clang
>