On 7/27/20 10:09 PM, [email protected] wrote:
Hi,
I am trying to build a yocto *demo-coreip-cli* image for my custom
RISC-V SOC which only supports *imafd* instructions. For the compilation
of cross toolchain that is used by Bitbake, I tried changing
cross-binutils.inc recipe and cross-gcc.inc recipe in openembedded-core
layer by including “*–with-arch=rv64imafd*” in "*EXTRA_OECONF* "
variable. Is there anything else I am missing or doing wrong? Thank You.
I think you could start by defining new tune files for this look into
meta/conf/machine/include/riscv/arch-riscv.inc and also tune-riscv.inc
to understand the underlying mechanism, we currently have lp64 and ilp32
options available, its not clear what particular ABI you are looking for
( is it rv32 ? ) but you can encode it there and then use the right
tunes in your machine to use it.
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