mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
cf1c0aaf81
GCC is configured to always compile with PIC enabled for the Xtensa architecture. This fails when nfsroot is enabled as the code uses a non-conformant segment that mismatches in permissione with a read-only segment. A patch has been submitted to GCC to add the machine-option 'force-no-pic' that disables PIC. Signed-off-by: Chris Zankel <chris@zankel.net>
97 lines
2.6 KiB
Makefile
97 lines
2.6 KiB
Makefile
#
|
|
# This file is subject to the terms and conditions of the GNU General Public
|
|
# License. See the file "COPYING" in the main directory of this archive
|
|
# for more details.
|
|
#
|
|
# Copyright (C) 2001 - 2005 Tensilica Inc.
|
|
#
|
|
# This file is included by the global makefile so that you can add your own
|
|
# architecture-specific flags and dependencies. Remember to do have actions
|
|
# for "archclean" and "archdep" for cleaning up and making dependencies for
|
|
# this architecture
|
|
|
|
# Core configuration.
|
|
# (Use VAR=<xtensa_config> to use another default compiler.)
|
|
|
|
variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf
|
|
variant-$(CONFIG_XTENSA_VARIANT_DC232B) := dc232b
|
|
variant-$(CONFIG_XTENSA_VARIANT_S6000) := s6000
|
|
variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom
|
|
|
|
VARIANT = $(variant-y)
|
|
export VARIANT
|
|
|
|
# Platform configuration
|
|
|
|
platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
|
|
platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
|
|
platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105
|
|
|
|
PLATFORM = $(platform-y)
|
|
export PLATFORM
|
|
|
|
# temporarily until string.h is fixed
|
|
KBUILD_CFLAGS += -ffreestanding
|
|
|
|
KBUILD_CFLAGS += -pipe -mlongcalls
|
|
|
|
KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
|
|
|
|
vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
|
|
plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
|
|
|
|
ifeq ($(KBUILD_SRC),)
|
|
KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
|
|
else
|
|
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
|
|
endif
|
|
|
|
KBUILD_DEFCONFIG := iss_defconfig
|
|
|
|
# ramdisk/initrd support
|
|
# You need a compressed ramdisk image, named ramdisk.gz in
|
|
# arch/xtensa/boot/ramdisk
|
|
|
|
core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
|
|
|
|
# Test for cross compiling
|
|
|
|
ifneq ($(VARIANT),)
|
|
COMPILE_ARCH = $(shell uname -m)
|
|
|
|
ifneq ($(COMPILE_ARCH), xtensa)
|
|
ifndef CROSS_COMPILE
|
|
CROSS_COMPILE = xtensa_$(VARIANT)-
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
# Only build variant and/or platform if it includes a Makefile
|
|
|
|
buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
|
|
buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
|
|
|
|
# Find libgcc.a
|
|
|
|
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
|
|
|
|
head-y := arch/xtensa/kernel/head.o
|
|
core-y += arch/xtensa/kernel/ arch/xtensa/mm/
|
|
core-y += $(buildvar) $(buildplf)
|
|
|
|
libs-y += arch/xtensa/lib/ $(LIBGCC)
|
|
|
|
boot := arch/xtensa/boot
|
|
|
|
all: zImage
|
|
|
|
bzImage : zImage
|
|
|
|
zImage zImage.initrd: vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $@
|
|
|
|
define archhelp
|
|
@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
|
|
endef
|
|
|