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When debugging is enabled for the device tree or memory map parsing code, the active serial console UART variable will be accessed during early initialisation, before the .bss section has been zeroed. Place this variable in the .data section (by providing an explicit initialiser), so that reading this variable is well defined even during early initialisation. 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