Date: Thu, 19 May 2016 16:30:23 +1000 From: Andrew Donnellan <andrew.donnellan@....ibm.com> To: Michael Ellerman <mpe@...erman.id.au>, Emese Revfy <re.emese@...il.com>, kernel-hardening@...ts.openwall.com Cc: linux-kbuild@...r.kernel.org, pageexec@...email.hu, spender@...ecurity.net, mmarek@...e.com, keescook@...omium.org, linux@...musvillemoes.dk, fengguang.wu@...el.com, dvyukov@...gle.com, linux-kernel@...r.kernel.org, david.brown@...aro.org, yamada.masahiro@...ionext.com, linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>, Daniel Axtens <dja@...ens.net> Subject: Re: [PATCH v8 2/4] GCC plugin infrastructure On 19/05/16 16:22, Michael Ellerman wrote: >> Did you test the plugins with all gcc versions (4.5-6)? > > What's the concern about gcc versions? Just not breaking the build on old > compilers? > I'm pretty sure powerpc big endian still builds with gcc 4.4. gcc's plugin support only landed in 4.5, so we don't care about <=4.4. > However if Andrew's only tested on little endian, then that select should be > guarded with an "if CPU_LITTLE_ENDIAN". And to build LE you need gcc >= 4.9. I'm going to give BE a test too just to be sure. -- Andrew Donnellan OzLabs, ADL Canberra andrew.donnellan@....ibm.com IBM Australia Limited
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