mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-20 14:16:02 +00:00
70 lines
2.1 KiB
Makefile
70 lines
2.1 KiB
Makefile
![]() |
UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
|
||
|
|
||
|
# What CPU vesion are we building for, and crack it open
|
||
|
# as major.minor.rev
|
||
|
CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
|
||
|
CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
|
||
|
CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
|
||
|
CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
|
||
|
|
||
|
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
|
||
|
|
||
|
# Use cpu-related CONFIG_ vars to set compile options.
|
||
|
|
||
|
# Work out HW multipler support. This is icky.
|
||
|
# 1. Spartan2 has no HW multiplers.
|
||
|
# 2. MicroBlaze v3.x always uses them, except in Spartan 2
|
||
|
# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
|
||
|
ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
|
||
|
ifeq ($(CPU_MAJOR),3)
|
||
|
CPUFLAGS-1 += -mno-xl-soft-mul
|
||
|
else
|
||
|
# USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
|
||
|
CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
|
||
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
|
||
|
endif
|
||
|
endif
|
||
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
|
||
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
|
||
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
|
||
|
|
||
|
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
|
||
|
|
||
|
# The various CONFIG_XILINX cpu features options are integers 0/1/2...
|
||
|
# rather than bools y/n
|
||
|
CFLAGS += $(CPUFLAGS-1)
|
||
|
CFLAGS += $(CPUFLAGS-2)
|
||
|
|
||
|
# r31 holds current when in kernel mode
|
||
|
CFLAGS += -ffixed-r31
|
||
|
|
||
|
LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
|
||
|
|
||
|
LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
|
||
|
|
||
|
head-y := arch/microblaze/kernel/head.o
|
||
|
libs-y += arch/microblaze/lib/ $(LIBGCC)
|
||
|
core-y += arch/microblaze/kernel/ arch/microblaze/mm/ \
|
||
|
arch/microblaze/platform/
|
||
|
|
||
|
boot := arch/$(ARCH)/boot
|
||
|
|
||
|
# defines filename extension depending memory management type
|
||
|
ifeq ($(CONFIG_MMU),)
|
||
|
MMUEXT := -nommu
|
||
|
endif
|
||
|
export MMUEXT
|
||
|
|
||
|
all: linux.bin
|
||
|
|
||
|
archclean:
|
||
|
$(Q)$(MAKE) $(clean)=$(boot)
|
||
|
|
||
|
linux.bin linux.bin.gz: vmlinux
|
||
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
||
|
|
||
|
define archhelp
|
||
|
echo '* linux.bin - Create raw binary'
|
||
|
echo ' linux.bin.gz - Create compressed raw binary'
|
||
|
endef
|