[PATCH 1/2] riscv: Add support for GNU indirect function

[Szabolcs Nagy]

The 12/01/2020 18:22, Vincent Chen wrote:
> +elf_ifunc_invoke (ElfW(Addr) addr)
> +{
> +  return ((ElfW(Addr) (*) (uint64_t)) (addr)) (GLRO(dl_hwcap));

based on the aarch64 experience i'd pass at
least a (void*)0 second arg so once the
hwcap bits are used up the ifunc call abi
can be extended. (note that there is no
other way to pass data to an ifunc resolver
than the arguments: calling extern function
or object symbols don't work.)