From: Emese Revfy <re.emese@gmail.com>
To: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org,
kernel-hardening@lists.openwall.com, keescook@chromium.org,
linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
pageexec@freemail.hu, spender@grsecurity.net, mmarek@suse.com
Subject: Re: [PATCH 3/3] powerpc: enable support for GCC plugins
Date: Tue, 6 Dec 2016 22:25:20 +0100 [thread overview]
Message-ID: <20161206222520.7fb37896488eff1b299eb3db@gmail.com> (raw)
In-Reply-To: <20161206062800.21800-3-andrew.donnellan@au1.ibm.com>
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
next prev parent reply other threads:[~2016-12-06 21:26 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-06 6:27 [PATCH 1/3] gcc-plugins: fix definition of DISABLE_LATENT_ENTROPY_PLUGIN Andrew Donnellan
2016-12-06 6:27 ` [PATCH 2/3] powerpc: correctly disable latent entropy GCC plugin on prom_init.o Andrew Donnellan
2016-12-06 6:28 ` [PATCH 3/3] powerpc: enable support for GCC plugins Andrew Donnellan
2016-12-06 20:40 ` Kees Cook
2016-12-07 1:05 ` [kernel-hardening] " Andrew Donnellan
2016-12-06 21:25 ` Emese Revfy [this message]
2016-12-07 5:49 ` Andrew Donnellan
2016-12-07 5:45 ` Andrew Donnellan
2016-12-08 14:42 ` PaX Team
2016-12-08 18:06 ` Kees Cook
2016-12-09 2:48 ` Andrew Donnellan
2016-12-09 10:59 ` PaX Team
2017-01-27 5:52 ` Andrew Donnellan
2017-01-27 5:55 ` Andrew Donnellan
2017-02-06 20:37 ` [1/3] gcc-plugins: fix definition of DISABLE_LATENT_ENTROPY_PLUGIN Michael Ellerman
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