mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2024-12-28 16:53:49 +00:00
824927e884
ARC GCC compiler is packaged starting from Fedora 39i and the GCC variant of cross compile tools has arc-linux-gnu- prefix and not arc-linux-. This is causing that CROSS_COMPILE variable is left unset. This change allows builds without need to supply CROSS_COMPILE argument if distro package is used. Before this change: $ make -j 128 ARCH=arc W=1 drivers/infiniband/hw/mlx4/ gcc: warning: ‘-mcpu=’ is deprecated; use ‘-mtune=’ or ‘-march=’ instead gcc: error: unrecognized command-line option ‘-mmedium-calls’ gcc: error: unrecognized command-line option ‘-mlock’ gcc: error: unrecognized command-line option ‘-munaligned-access’ [1] https://packages.fedoraproject.org/pkgs/cross-gcc/gcc-arc-linux-gnu/index.html Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Vineet Gupta <vgupta@kernel.org>
113 lines
3.3 KiB
Makefile
113 lines
3.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
#
|
|
|
|
KBUILD_DEFCONFIG := haps_hs_smp_defconfig
|
|
|
|
ifeq ($(CROSS_COMPILE),)
|
|
CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux- arc-linux-gnu-)
|
|
endif
|
|
|
|
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
|
|
|
|
tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700
|
|
tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38
|
|
|
|
ifeq ($(CONFIG_ARC_TUNE_MCPU),)
|
|
cflags-y += $(tune-mcpu-def-y)
|
|
else
|
|
tune-mcpu := $(CONFIG_ARC_TUNE_MCPU)
|
|
ifneq ($(call cc-option,$(tune-mcpu)),)
|
|
cflags-y += $(tune-mcpu)
|
|
else
|
|
# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler
|
|
# (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option.
|
|
$(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)')
|
|
cflags-y += $(tune-mcpu-def-y)
|
|
endif
|
|
endif
|
|
|
|
ifdef CONFIG_ARC_CURR_IN_REG
|
|
# For a global register definition, make sure it gets passed to every file
|
|
# We had a customer reported bug where some code built in kernel was NOT using
|
|
# any kernel headers, and missing the global register
|
|
# Can't do unconditionally because of recursive include issues
|
|
# due to <linux/thread_info.h>
|
|
LINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h
|
|
cflags-y += -ffixed-gp
|
|
endif
|
|
|
|
cflags-y += -fsection-anchors
|
|
|
|
cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
|
|
cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
|
|
|
|
ifdef CONFIG_ISA_ARCV2
|
|
|
|
ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
|
|
cflags-y += -munaligned-access
|
|
else
|
|
cflags-y += -mno-unaligned-access
|
|
endif
|
|
|
|
ifndef CONFIG_ARC_HAS_LL64
|
|
cflags-y += -mno-ll64
|
|
endif
|
|
|
|
ifndef CONFIG_ARC_HAS_DIV_REM
|
|
cflags-y += -mno-div-rem
|
|
endif
|
|
|
|
endif
|
|
|
|
cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI)
|
|
cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi)
|
|
|
|
# small data is default for elf32 tool-chain. If not usable, disable it
|
|
# This also allows repurposing GP as scratch reg to gcc reg allocator
|
|
disable_small_data := y
|
|
cflags-$(disable_small_data) += -mno-sdata
|
|
|
|
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
|
|
ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
|
|
|
|
LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
|
|
|
|
# Modules with short calls might break for calls into builtin-kernel
|
|
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
|
|
|
|
# Finally dump eveything into kernel build system
|
|
KBUILD_CFLAGS += $(cflags-y)
|
|
KBUILD_AFLAGS += $(KBUILD_CFLAGS)
|
|
KBUILD_LDFLAGS += $(ldflags-y)
|
|
|
|
# w/o this dtb won't embed into kernel binary
|
|
core-y += arch/arc/boot/dts/
|
|
|
|
core-y += arch/arc/plat-sim/
|
|
core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
|
|
core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
|
|
core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/
|
|
|
|
libs-y += arch/arc/lib/ $(LIBGCC)
|
|
|
|
boot := arch/arc/boot
|
|
|
|
boot_targets := uImage.bin uImage.gz uImage.lzma
|
|
|
|
PHONY += $(boot_targets)
|
|
$(boot_targets): vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
|
|
|
uimage-default-y := uImage.bin
|
|
uimage-default-$(CONFIG_KERNEL_GZIP) := uImage.gz
|
|
uimage-default-$(CONFIG_KERNEL_LZMA) := uImage.lzma
|
|
|
|
PHONY += uImage
|
|
uImage: $(uimage-default-y)
|
|
@ln -sf $< $(boot)/uImage
|
|
@$(kecho) ' Image $(boot)/uImage is ready'
|
|
|
|
CLEAN_FILES += $(boot)/uImage
|