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RISC-V has a millicode calling convention that allows for the use of an alternative link register x5/t0. With sufficient care, this allows for two levels of subroutine call even when no stack is available. Provide both standard and millicode entry points for print_message(), and use the millicode entry point to allow for printing debug messages from libprefix.S itself. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org