On Sat, Dec 10, 2016 at 8:45 AM, Emese Revfy <re.emese@xxxxxxxxx> wrote: > On Fri, 9 Dec 2016 11:12:18 -0800 > Kees Cook <keescook@xxxxxxxxxx> wrote: > >> On Fri, Dec 9, 2016 at 2:40 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: >> > On Thursday, December 8, 2016 11:00:42 AM CET Kees Cook wrote: >> > >> >> If you have a moment, applying 215e2aa6c024[1] and reverting >> >> a519167e753e for an allyesconfig/allmodconfig build should let you >> >> know if things are working correctly with headers installed. If anyone >> >> sees any problems, please let me know and I can queue up fixes. >> > >> > Using gcc-4.9.3 or gcc-5.3.1 for an ARM allmodconfig build, I get tons of >> > errors such as this one: >> > >> > /git/arm-soc/init/initramfs.c: In function 'error': >> > /git/arm-soc/init/initramfs.c:50:1: error: unrecognizable insn: >> > } >> > ^ >> > (insn 26 25 27 5 (set (reg:SI 111 [ local_entropy.243 ]) >> > (rotatert:SI (reg:SI 116 [ local_entropy.243 ]) >> > (const_int -30 [0xffffffffffffffe2]))) -1 >> > (nil)) >> > *** WARNING *** there are active plugins, do not report this as a bug unless you can reproduce it without enabling any plugins. >> > Event | Plugins >> > PLUGIN_ATTRIBUTES | latent_entropy_plugin >> > PLUGIN_START_UNIT | latent_entropy_plugin >> > /git/arm-soc/init/initramfs.c:50:1: internal compiler error: in extract_insn, at recog.c:2202 >> > /git/arm-soc/arch/arm/vfp/vfpmodule.c: In function 'vfp_init': >> > /git/arm-soc/arch/arm/vfp/vfpmodule.c:824:1: error: unrecognizable insn: >> > } >> > ^ >> > (insn 138 137 139 17 (set (reg:SI 165 [ local_entropy.93 ]) >> > (rotatert:SI (reg:SI 150 [ local_entropy.93 ]) >> > (const_int -9 [0xfffffffffffffff7]))) -1 >> > (nil)) >> > *** WARNING *** there are active plugins, do not report this as a bug unless you can reproduce it without enabling any plugins. >> >> Well that's exciting! :P > > Hi, > > You can find the fix here: > https://github.com/ephox-gcc-plugins/latent_entropy/commit/c91275a1bfcebbcfc0ca1af03396e06039f04db8 Great, thanks! -Kees -- Kees Cook Nexus Security -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
