[OE-core] [meta-oe][PATCH v2] gcc-6.2: Add fix for missing no-PIE flags

[Khem Raj]

On Sun, Feb 12, 2017 at 12:20 PM, Stephen Arnold <sarnold at vctlabs.com> wrote:
> From: Stephen Arnold <stephen.arnold42 at gmail.com>
>
> Fixes build on hardened PAX host with gcc-5 (linker error on relocs).
> Completes no-PIE config by adding to ALL_* flags variables.
> Borrowed from Gentoo gcc patches, tested on 2 hardened amd64 hosts.
>
> Upstream-Status: Inappropriate [configuration]
>
> Commited by: Gentoo Toolchain Project <toolchain at gentoo.org>
> Signed-off-by: Stephen Arnold <stephen.arnold42 at gmail.com>

the patch is ok but please add this patch header to the gcc patch
itself not to OE patch. Secondly, gitify the patch on top of gcc-6
e.g.

https://github.com/kraj/gcc/tree/oe/gcc-6-branch

> ---
>  meta/recipes-devtools/gcc/gcc-6.2.inc                   |  1 +
>  .../gcc/gcc-6.2/0054_all_nopie-all-flags.patch          | 17 +++++++++++++++++
>  2 files changed, 18 insertions(+)
>  create mode 100644 meta/recipes-devtools/gcc/gcc-6.2/0054_all_nopie-all-flags.patch
>
> diff --git a/meta/recipes-devtools/gcc/gcc-6.2.inc b/meta/recipes-devtools/gcc/gcc-6.2.inc
> index b118995e1d..1a50d3a0d4 100644
> --- a/meta/recipes-devtools/gcc/gcc-6.2.inc
> +++ b/meta/recipes-devtools/gcc/gcc-6.2.inc
> @@ -78,6 +78,7 @@ SRC_URI = "\
>             file://0045-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch \
>             file://0046-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch \
>             file://0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch \
> +           file://0054_all_nopie-all-flags.patch \
>             ${BACKPORTS} \
>  "
>  BACKPORTS = ""
> diff --git a/meta/recipes-devtools/gcc/gcc-6.2/0054_all_nopie-all-flags.patch b/meta/recipes-devtools/gcc/gcc-6.2/0054_all_nopie-all-flags.patch
> new file mode 100644
> index 0000000000..0e103cb1ee
> --- /dev/null
> +++ b/meta/recipes-devtools/gcc/gcc-6.2/0054_all_nopie-all-flags.patch
> @@ -0,0 +1,17 @@
> +We need to pass NO_PIE_CFLAGS to ALL_* so gcc doesn't fail when
> +we compile it with older gcc and pie.
> +
> +--- a/gcc/Makefile.in  2015-06-25 19:18:12.000000000 +0200
> ++++ b/gcc/Makefile.in  2016-04-22 00:12:54.029178860 +0200
> +@@ -991,10 +991,10 @@ ALL_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@)
> + ALL_CPPFLAGS = $(INCLUDES) $(CPPFLAGS)
> +
> + # This is the variable to use when using $(COMPILER).
> +-ALL_COMPILERFLAGS = $(ALL_CXXFLAGS)
> ++ALL_COMPILERFLAGS = $(NO_PIE_CFLAGS) $(ALL_CXXFLAGS)
> +
> + # This is the variable to use when using $(LINKER).
> +-ALL_LINKERFLAGS = $(ALL_CXXFLAGS)
> ++ALL_LINKERFLAGS = $(NO_PIE_CFLAGS) $(ALL_CXXFLAGS)
> +
> + # Build and host support libraries.
> --
> 2.11.1
>
> --
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