Hello, On Thu, 27 Oct 2016 09:07:55 +0000, Alexey Brodkin wrote: > > axs101 is using a 770 core, while the toolchain is built for the HS38 > > core. I'm somewhat surprised that a single ARC toolchain cannot produce > > code for both 770 and HS38, but it seems to be the case. > > > > So you need a separate toolchain for ARC770. > > Indeed axs101 uses ARC770 core which is ARCv1 AKA ARCompact ISA while > axs103 sports the same base-board but CPU daughter-card contains ARC HS38 core > which has ARCv2 ISA (binary incompatible with ARCompact). > > Essentially both gcc and binutils will happily build for both architectures given > proper options were passed on the command line. But Linux kernel gets linked with > pre-built libgcc (it is a part of toolchain). And so it all boils down to a requirement > to have multilibbed uClibc toolchain. Which we don't have. Interesting. Why is libgcc linked with the kernel on ARC? I don't think that's the case on other architectures: the kernel is freestanding and provides everything that it needs without relying on the compiler runtime. Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
