Re: High stack usage due ftree-ch

2019-11-22 Thread Arnd Bergmann
On Fri, Nov 22, 2019 at 2:40 PM Adhemerval Zanella wrote: > > Hi Arnd, > > I took a look on the stack usage issue in the kernel snippet you provided [1], > and as you have noted the most impact indeed come from -ftree-ch optimization. > It is enabled in all optimization levels besides -Os (since b

Re: int64_t definition conflict on Aarch64

2013-01-02 Thread Arnd Bergmann
On Monday 31 December 2012, Riku Voipio wrote: > It's not good enough - the __u64 and friends are used elsewhere in the > fuse code. However just pulling in linux/types.h as done in out OE > overlay is good enough: > > http://git.linaro.org/gitweb?p=openembedded/meta-aarch64.git;a=blob;f=recipes-s

Re: int64_t definition conflict on Aarch64

2013-01-02 Thread Arnd Bergmann
On Wednesday 19 December 2012, Riku Voipio wrote: > Hi, > > The following code fails to build with OE Aarch64 toolchain with > current kernel headers. While ugly, the code is a reduced testcase > from fuse build failure ( > https://bugs.launchpad.net/linaro-oe/+bug/1087757 ) and the same fuse > co

Re: int64_t definition conflict on Aarch64

2013-01-02 Thread Arnd Bergmann
On Thursday 27 December 2012, Arnd Bergmann wrote: > On Wednesday 19 December 2012, Riku Voipio wrote: > > Hi, > > > > The following code fails to build with OE Aarch64 toolchain with > > current kernel headers. While ugly, the code is a reduced testcase > > fr

Re: No usb on omap3: 4.6 toolchain issue?

2011-06-20 Thread Arnd Bergmann
On Monday 20 June 2011, Nicolas Pitre wrote: > On Mon, 20 Jun 2011, Arnd Bergmann wrote: > > > On Saturday 18 June 2011, Nicolas Pitre wrote: > > Well, in case of readl/writel, we need the memory clobber for other reasons: > > They might trigger a DMA operation, or the rea

Re: No usb on omap3: 4.6 toolchain issue?

2011-06-20 Thread Arnd Bergmann
On Saturday 18 June 2011, Nicolas Pitre wrote: > On Fri, 17 Jun 2011, Arnd Bergmann wrote: > I played with this a bit. It looks like much more than a bit, thanks for the detailed analysis! > I think that GCC might have improved on this > front. It at least doesn't seem to

Re: No usb on omap3: 4.6 toolchain issue?

2011-06-17 Thread Arnd Bergmann
On Friday 17 June 2011, Michael Hope wrote: > Hi Paolo. I've had a look into this and updated the ticket. The > problem is due to a change in behaviour between 4.5 and 4.6 when > accessing strcuts marked with __attribute__((packed)). 4.5 would do a > word-wise access where 4.6 assumes the worst

Re: Problems with kernel support for hardware watchpoints

2011-02-09 Thread Arnd Bergmann
On Wednesday 09 February 2011 20:25:32 Will Deacon wrote: > > - Why is architecture 0x4 not supported? This seems to be the variant of > > the v7 debug architecture with memory-mapped registers. Apparently the > > IGEP only supports this version ... Do you know what the > > Beagle-/Pandaboard an

Re: the linaro toolchain and older arm versions

2010-10-06 Thread Arnd Bergmann
On Wednesday 06 October 2010, Steve Langasek wrote: > It sounds like what you need for this is a multilib-enabled armel compiler > build, that includes a libgcc build for ARMv7 as well as separate libgcc > builds for whichever other ARM targets you're after. You should coordinate > this with Marci