Unfortunately, removing the "+1" doesn't work. That results in a kernel which claims to start, but doesn't progress.
Changing it to an "|1" also doesn't work due to this error: arch/arm/kernel/entry-common.S:117: Error: invalid operands (.text and *ABS* sections) for `|' Doing this to the badr macro: #ifdef CONFIG_THUMB2_KERNEL adr\c \rd, \sym orr\c \rd, \rd, #1 #else Is giving me a "Bad Linux ARM zImage magic!" error on boot So, I don't think it's an easy change to the kernel. -Chris On Wed, Apr 4, 2018 at 4:04 PM, Andre McCurdy <armccu...@gmail.com> wrote: > On Wed, Apr 4, 2018 at 9:14 AM, Andre McCurdy <armccu...@gmail.com> wrote: > > On Wed, Apr 4, 2018 at 8:06 AM, Chris Elledge > > <celle...@digitallumens.com> wrote: > >> Thanks for the feedback. I rolled back binutils to 2.28.0 by copying the > >> yocto-2.3.3 binutils recipe directory into my custom layer. That has > >> resolved the issue. > >> > >> I can confirm that binutils 2.29.0 also has the problem. I went from > >> yocto-2.3 to 2.4.2 so I hadn't tried binutils 2.29.0 previously. There > are > >> also reports that openssl and libavcodec are broken when targeting an > ARM > >> Thumb2 platform with binutils 2.29.* > > > > Yes, that makes sense. The binutils change is in both 2.29.0 and > > 2.29.1 (and also in 2.30.0). > > > > The next useful experiment would be to stay with binutils 2.29.1 and > > apply a patch to revert the one particular commit which caused the > > change in behaviour: > > > > https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git; > a=commitdiff;h=e645cf40b111daef4518a58547de577eb9379ccb > > The experiment of patching the kernel would also be useful, since I > would guess that the final solution from upstream will involve a > change to the kernel rather than reverting the change to binutils. > > Changing "+ 1" to "| 1" in the badr macro would be a universal > solution for all versions of binutils, but for a quick test with > binutils 2.29.1 you could simply remove the "+ 1" from the > CONFIG_THUMB2_KERNEL case (ie make the ARM and Thumb2 versions of the > macro identical). > > https://github.com/torvalds/linux/blob/master/arch/arm/ > include/asm/assembler.h#L197 >
-- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto