On Wed, 27 Apr 2016, Stefano Babic wrote:
Guys, it looks like it is already time to finally get that series of ARM lib
patches in. This will occur again and again until it is done.
Face the reality -- not everybody uses a special softfloat toolchain just
for building U-Boot. And it is simply pathetic to expect this when there is
well proven solution which is in Linux kernel since the dawn of times.
Get those patches in please.
Hi Peter,
On 27/04/2016 12:15, Peter Robinson wrote:
Hi All,
I didn't look closely when it happened with rc1 because I saw a pull
req from Stefano shortly afterwards and I decided to try again after
that landed. With rc3 I'm still seeing the same issue.
Basically all the i.MX6 devices
(cm_fx6,mx6cuboxi,novena,riotboard,udoo,wandboard,warp) we currently
build for Fedora are failing to build. It looks very similar to some
64 bit math issues [1] [2] a search gives me although from the linker
command I'm failing to see what code is at fault so any assistance in
debugging this would be great. I've checked it failed on < gcc6 too
and 2016.03 builds so it appears a regression in 05rcX.
The (for cuboxi example) basic error is:
ld.bfd -pie --gc-sections -Bstatic -Ttext 0x17800000 -o u-boot -T
u-boot.lds arch/arm/cpu/armv7/start.o --start-group
arch/arm/cpu/built-in.o arch/arm/cpu/armv7/built-in.o
arch/arm/imx-common/built-in.o arch/arm/lib/built-in.o
board/solidrun/mx6cuboxi/built-in.o cmd/built-in.o common/built-in.o
disk/built-in.o drivers/built-in.o drivers/dma/built-in.o
drivers/gpio/built-in.o drivers/i2c/built-in.o
drivers/mmc/built-in.o drivers/mtd/built-in.o
drivers/mtd/onenand/built-in.o drivers/mtd/spi/built-in.o
drivers/net/built-in.o drivers/net/phy/built-in.o
drivers/pci/built-in.o drivers/power/built-in.o
drivers/power/battery/built-in.o drivers/power/fuel_gauge/built-in.o
drivers/power/mfd/built-in.o drivers/power/pmic/built-in.o
drivers/power/regulator/built-in.o drivers/serial/built-in.o
drivers/spi/built-in.o drivers/usb/common/built-in.o
drivers/usb/dwc3/built-in.o drivers/usb/emul/built-in.o
drivers/usb/eth/built-in.o drivers/usb/gadget/built-in.o
drivers/usb/gadget/udc/built-in.o drivers/usb/host/built-in.o
drivers/usb/musb-new/built-in.o drivers/usb/musb/built-in.o
drivers/usb/phy/built-in.o drivers/usb/ulpi/built-in.o fs/built-in.o
lib/built-in.o net/built-in.o test/built-in.o test/dm/built-in.o
--end-group arch/arm/lib/eabi_compat.o -L
/usr/lib/gcc/armv7hl-redhat-linux-gnueabi/6.0.0 -lgcc -Map u-boot.map
ld.bfd: error:
/usr/lib/gcc/armv7hl-redhat-linux-gnueabi/6.0.0/libgcc.a(_udivmoddi4.o)
uses VFP register arguments, u-boot does not
ld.bfd: failed to merge target specific data of file
/usr/lib/gcc/armv7hl-redhat-linux-gnueabi/6.0.0/libgcc.a(_udivmoddi4.o)
Full log at https://pbrobinson.fedorapeople.org/u-boot-mx6cuboxi-fail.txt
I can confirm this - I started bisect and I have found this one:
commit 3cb4f25cc702db17455583599d0940c81337a17a
Author: Peng Fan <van.free...@gmail.com>
Date: Wed Mar 9 16:07:21 2016 +0800
video: ipu: avoid overflow issue
Multiplication, as "clk->parent->rate * 16" may overflow. So use
do_div to avoid such issue.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Signed-off-by: Sandor Yu <sandor...@nxp.com>
Cc: Anatolij Gustschin <ag...@denx.de>
Cc: Stefano Babic <sba...@denx.de>
Cc: Fabio Estevam <fabio.este...@nxp.com>
:040000 040000 9672cb921a1051b5357931e8835884e2cccf8ec6
3cbbeea448780bb4855f5458dd98d017239b729a M drivers
Checking the patch, I have found:
clk->rate = (u64)(clk->parent->rate * 16) / div;
This seems the cause for the failing build.
This confirms an issue. IMHO we can replace it with:
clk->rate = (u64)lldiv(clk->parent->rate * 16, div);
Peng, what do you mind ?
Best regards,
Stefano Babic
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