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# -*- makefile -*-
#
# arch/arm64/MCONFIG
#
# Special rules for this architecture. Note that this is actually
# included from the main Makefile, and that pathnames should be
# accordingly.
#
CPU_ARCH ?= armv8-a
CPU_TUNE ?= generic
KLIBCOPTFLAGS += -g -Os -march=$(CPU_ARCH) -mtune=$(CPU_TUNE)
KLIBCBITSIZE = 64
KLIBCREQFLAGS += -fno-exceptions -mgeneral-regs-only
KLIBCLDFLAGS = $(LD_IMAGE_BASE_OPT) 0x00400000
# Extra linkflags when building the shared version of the library
# This address needs to be reachable using normal inter-module
# calls, and work on the memory models for this architecture
# On arm64, binaries are normally loaded at 4MB. Place klibc.so
# a little before that at 2MB to prevent overlap.
KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x0200000
# Kernel has never used stack trampolines
KLIBCEXECSTACK := n
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