| Message ID | 1413558308-30081-1-git-send-email-vincent.stehle@freescale.com |
|---|---|
| State | Changes Requested |
| Headers | show |
Dear Vincent Stehlé, On Fri, 17 Oct 2014 17:05:08 +0200, Vincent Stehlé wrote: > Force gcc to version 4.5, as versions 4.7 and 4.8 break the boot. > > Switch to VFPv3(d32), as i.MX53 Cortex-A8 supports it (MVFR0 = 0x11110222). This is quite worrying. Gcc 4.5 is very old now, and we would like to get rid of it in Buildroot rather than adding more defconfig that use it. Is there some hope to get a fix in a more recent gcc such as 4.9.x ? Has the specific gcc bug been identified and reported ? Thanks, Thomas
Hi Thomas, Hi Vincent, Le Sat, 18 Oct 2014 18:35:34 +0200, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> a écrit : > On Fri, 17 Oct 2014 17:05:08 +0200, Vincent Stehlé wrote: > > Force gcc to version 4.5, as versions 4.7 and 4.8 break the boot. > > > > Switch to VFPv3(d32), as i.MX53 Cortex-A8 supports it (MVFR0 = 0x11110222). > > This is quite worrying. Gcc 4.5 is very old now, and we would like to > get rid of it in Buildroot rather than adding more defconfig that use > it. > > Is there some hope to get a fix in a more recent gcc such as 4.9.x ? > Has the specific gcc bug been identified and reported ? > if you switch to imx_2.6.35_maintain branch instead of older rel_imx_2.6.35_11.09.01 actually used in the defconfig, you will get (among other fixes) these patches : http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/?h=imx_2.6.35_maintain&id=96a7591a6f72db6d7bb337e78d61c53f670d9793 http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/?h=imx_2.6.35_maintain&id=a0de0f94dd9868d2280aa8cdb8295231e00d5ef6 and I believe the kernel built with recent gcc will run as it runs fine on i.MX53 when built with Yocto. Best regards, Eric
Dear Vincent Stehlé, On Fri, 17 Oct 2014 17:05:08 +0200, Vincent Stehlé wrote: > Force gcc to version 4.5, as versions 4.7 and 4.8 break the boot. > > Switch to VFPv3(d32), as i.MX53 Cortex-A8 supports it (MVFR0 = 0x11110222). > > Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com> > Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> > Cc: Peter Korsgaard <jacmet@sunsite.dk> > --- > configs/mx53loco_defconfig | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) Can you update the patch according to Eric Benard's comment? In the mean time, I'll mark your patch as "Changes Requested" in our patch tracking system. Thanks! Thomas
diff --git a/configs/mx53loco_defconfig b/configs/mx53loco_defconfig index 8b12238..f0d13bb 100644 --- a/configs/mx53loco_defconfig +++ b/configs/mx53loco_defconfig @@ -1,7 +1,11 @@ # Architecture BR2_arm=y BR2_cortex_a8=y -BR2_ARM_FPU_VFPV3D16=y +BR2_ARM_FPU_VFPV3=y + +# toolchain +# Use gcc 4.5, as gcc 4.7 & 4.8 break the boot. +BR2_GCC_VERSION_4_5_X=y # System BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
Force gcc to version 4.5, as versions 4.7 and 4.8 break the boot. Switch to VFPv3(d32), as i.MX53 Cortex-A8 supports it (MVFR0 = 0x11110222). Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <jacmet@sunsite.dk> --- configs/mx53loco_defconfig | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)