2abaf2eba2
Replace the BSD license header with the SPDX tag for Makefiles with only an Intel copyright on them. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
115 lines
3.8 KiB
Makefile
115 lines
3.8 KiB
Makefile
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2010-2014 Intel Corporation
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#
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# This .mk is the generic target rte.var.mk ; it includes .mk for
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# the specified machine, architecture, toolchain (compiler) and
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# executive environment.
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#
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#
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# machine:
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#
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# - can define ARCH variable (overridden by cmdline value)
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# - can define CROSS variable (overridden by cmdline value)
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# - define MACHINE_CFLAGS variable (overridden by cmdline value)
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# - define MACHINE_LDFLAGS variable (overridden by cmdline value)
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# - define MACHINE_ASFLAGS variable (overridden by cmdline value)
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# - can define CPU_CFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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# - can define CPU_LDFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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# - can define CPU_ASFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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#
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ifneq ($(wildcard $(RTE_SDK)/mk/machine/$(RTE_MACHINE)/rte.vars.mk),)
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include $(RTE_SDK)/mk/machine/$(RTE_MACHINE)/rte.vars.mk
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else
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MACHINE_CFLAGS := -march=$(RTE_MACHINE)
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endif
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#
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# arch:
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#
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# - define ARCH variable (overridden by cmdline or by previous
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# optional define in machine .mk)
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# - define CROSS variable (overridden by cmdline or previous define
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# in machine .mk)
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# - define CPU_CFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - define CPU_LDFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - define CPU_ASFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - may override any previously defined variable
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#
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include $(RTE_SDK)/mk/arch/$(RTE_ARCH)/rte.vars.mk
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#
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# toolchain:
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#
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# - define CC, LD, AR, AS, ...
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# - define TOOLCHAIN_CFLAGS variable (overridden by cmdline value)
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# - define TOOLCHAIN_LDFLAGS variable (overridden by cmdline value)
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# - define TOOLCHAIN_ASFLAGS variable (overridden by cmdline value)
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# - may override any previously defined variable
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#
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include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.vars.mk
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#
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# exec-env:
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#
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# - define EXECENV_CFLAGS variable (overridden by cmdline)
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# - define EXECENV_LDFLAGS variable (overridden by cmdline)
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# - define EXECENV_ASFLAGS variable (overridden by cmdline)
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# - may override any previously defined variable
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#
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include $(RTE_SDK)/mk/exec-env/$(RTE_EXEC_ENV)/rte.vars.mk
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# Don't set CFLAGS/LDFLAGS flags for kernel module, all flags are
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# provided by Kbuild framework.
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ifeq ($(KERNELRELEASE),)
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# now that the environment is mostly set up, including the machine type we will
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# be passing to the compiler, set up the specific CPU flags based on that info.
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include $(RTE_SDK)/mk/rte.cpuflags.mk
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# merge all CFLAGS
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CFLAGS := $(CPU_CFLAGS) $(EXECENV_CFLAGS) $(TOOLCHAIN_CFLAGS) $(MACHINE_CFLAGS)
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CFLAGS += $(TARGET_CFLAGS)
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# merge all LDFLAGS
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LDFLAGS := $(CPU_LDFLAGS) $(EXECENV_LDFLAGS) $(TOOLCHAIN_LDFLAGS) $(MACHINE_LDFLAGS)
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LDFLAGS += $(TARGET_LDFLAGS)
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# merge all ASFLAGS
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ASFLAGS := $(CPU_ASFLAGS) $(EXECENV_ASFLAGS) $(TOOLCHAIN_ASFLAGS) $(MACHINE_ASFLAGS)
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ASFLAGS += $(TARGET_ASFLAGS)
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# add default include and lib paths
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CFLAGS += -I$(RTE_OUTPUT)/include
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LDFLAGS += -L$(RTE_OUTPUT)/lib
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# always include rte_config.h: the one in $(RTE_OUTPUT)/include is
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# the configuration of SDK when $(BUILDING_RTE_SDK) is true, or the
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# configuration of the application if $(BUILDING_RTE_SDK) is not
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# defined.
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ifeq ($(BUILDING_RTE_SDK),1)
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# building sdk
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CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h
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else
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# if we are building an external application, include SDK's lib and
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# includes too
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CFLAGS += -I$(RTE_SDK_BIN)/include
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ifneq ($(wildcard $(RTE_OUTPUT)/include/rte_config.h),)
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CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h
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endif
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CFLAGS += -include $(RTE_SDK_BIN)/include/rte_config.h
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LDFLAGS += -L$(RTE_SDK_BIN)/lib
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endif
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export CFLAGS
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export LDFLAGS
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endif
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