Index: meson/arch/arm64/meson.build
===================================================================
--- meson/arch/arm64/meson.build	(revision 98975a82755ce9aa9edd1fad289db15a79921dc8)
+++ meson/arch/arm64/meson.build	(revision a73a1453b2b32910e3e981c2942288e99e7df640)
@@ -1,6 +1,48 @@
+#
+# Copyright (c) 2015 Petr Pavlu
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
 arch_uspace_c_args = [ '-D__LE__', '-fno-omit-frame-pointer' ]
 arch_kernel_c_args = arch_uspace_c_args + [ '-march=armv8-a+nofp+nosimd', '-mgeneral-regs-only' ]
 arch_kernel_link_args = [ '-nostdlib' ]
 arch_uspace_link_args = [ '-nostdlib', '-lgcc' ]
+
+
+# UEFI binaries should be relocatable, the EFI boot service LoadImage() will
+# rebase the boot file using the .reloc information in the image if it cannot
+# load the binary at its preferred address. The ARM64 port does not provide this
+# information in its PE file (that would require manually creating it) but
+# instead the boot code is compiled with the -fpic option and the bootloader
+# relocates itself at runtime.
+#
+# N.B. The UEFI guarantees for AArch64 that during boot time the primary
+# processor is in the execution mode that has unaligned access enabled. The
+# -mstrict-align option is therefore not needed.
+arch_boot_c_args = arch_uspace_c_args + [ '-fpic', '-fvisibility=hidden', '-fno-function-sections' ]
+arch_boot_link_args = [ '-Wl,-shared', '-Wl,--no-gc-sections' ]