| Message ID | 1458576514-9470-2-git-send-email-hdegoede@redhat.com |
|---|---|
| State | RFC |
| Delegated to: | Tom Rini |
| Headers | show |
On Mon, Mar 21, 2016 at 05:08:34PM +0100, Hans de Goede wrote: > It seems that building cache_v7.c with gcc6 with -O2 or -Os results in > an unreliable u-boot (only boots the kernel some of the time), at least > on sunxi boards. For details see: > > https://bugzilla.redhat.com/show_bug.cgi?id=1318788 > > This commit adds -O1 at the end of the CFLAGS when building > cache_v7.c working around this. > > Signed-off-by: Hans de Goede <hdegoede@redhat.com> I've marked this as RFC in patchwork for now (since 0/1 was RFC) and cc'd myself on the bugzilla as well. We'll pay it by ear for v2016.05 release and probably not include this work-around in -rc1.
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 45f346c..45a49fe 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -8,6 +8,7 @@ extra-y := start.o obj-y += cache_v7.o +CFLAGS_cache_v7.o := $(KBUILD_CFLAGS) -O1 obj-y += cpu.o cp15.o obj-y += syslib.o
It seems that building cache_v7.c with gcc6 with -O2 or -Os results in an unreliable u-boot (only boots the kernel some of the time), at least on sunxi boards. For details see: https://bugzilla.redhat.com/show_bug.cgi?id=1318788 This commit adds -O1 at the end of the CFLAGS when building cache_v7.c working around this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- arch/arm/cpu/armv7/Makefile | 1 + 1 file changed, 1 insertion(+)