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SubjectRe: [PATCH 3/3] powerpc: enable support for GCC plugins
On Tue,  6 Dec 2016 17:28:00 +1100
Andrew Donnellan <andrew.donnellan@au1.ibm.com> wrote:

> + # Various gccs between 4.5 and 5.1 have bugs on powerpc due to missing
> + # header files. gcc <= 4.6 doesn't work at all, gccs from 4.8 to 5.1 have
> + # issues with 64-bit targets.
> + ifeq ($(ARCH),powerpc)
> + ifeq ($(call cc-ifversion, -le, 0501, y), y)
> + @echo "Cannot use CONFIG_GCC_PLUGINS: plugin support on gcc <= 5.1 is buggy on powerpc, please upgrade to gcc 5.2 or newer" >&2 && exit 1
> + endif
> + endif

Hi,

What are these missing headers? Because if they aren't necessary then they can
be removed from gcc-common.h. There were missing headers on arm/arm64 and these
archs are supported. I think this version check is unnecessary because
gcc-plugin.sh also checks the missing headers.

What is the problem on gcc-4.5/gcc-4.6?

--
Emese

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