ceph/src/dpdk/mk/target/generic/rte.vars.mk

   1 #   BSD LICENSE
   2 #
   3 #   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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  29 #   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31
  32 #
  33 # This .mk is the generic target rte.var.mk ; it includes .mk for
  34 # the specified machine, architecture, toolchain (compiler) and
  35 # executive environment.
  36 #
  37
  38 #
  39 # machine:
  40 #
  41 #   - can define ARCH variable (overriden by cmdline value)
  42 #   - can define CROSS variable (overriden by cmdline value)
  43 #   - define MACHINE_CFLAGS variable (overriden by cmdline value)
  44 #   - define MACHINE_LDFLAGS variable (overriden by cmdline value)
  45 #   - define MACHINE_ASFLAGS variable (overriden by cmdline value)
  46 #   - can define CPU_CFLAGS variable (overriden by cmdline value) that
  47 #     overrides the one defined in arch.
  48 #   - can define CPU_LDFLAGS variable (overriden by cmdline value) that
  49 #     overrides the one defined in arch.
  50 #   - can define CPU_ASFLAGS variable (overriden by cmdline value) that
  51 #     overrides the one defined in arch.
  52 #
  53 ifneq ($(wildcard $(RTE_SDK)/mk/machine/$(RTE_MACHINE)/rte.vars.mk),)
  54 include $(RTE_SDK)/mk/machine/$(RTE_MACHINE)/rte.vars.mk
  55 else
  56 MACHINE_CFLAGS := -march=$(RTE_MACHINE)
  57 endif
  58
  59 #
  60 # arch:
  61 #
  62 #   - define ARCH variable (overriden by cmdline or by previous
  63 #     optional define in machine .mk)
  64 #   - define CROSS variable (overriden by cmdline or previous define
  65 #     in machine .mk)
  66 #   - define CPU_CFLAGS variable (overriden by cmdline or previous
  67 #     define in machine .mk)
  68 #   - define CPU_LDFLAGS variable (overriden by cmdline or previous
  69 #     define in machine .mk)
  70 #   - define CPU_ASFLAGS variable (overriden by cmdline or previous
  71 #     define in machine .mk)
  72 #   - may override any previously defined variable
  73 #
  74 include $(RTE_SDK)/mk/arch/$(RTE_ARCH)/rte.vars.mk
  75
  76 #
  77 # toolchain:
  78 #
  79 #   - define CC, LD, AR, AS, ...
  80 #   - define TOOLCHAIN_CFLAGS variable (overriden by cmdline value)
  81 #   - define TOOLCHAIN_LDFLAGS variable (overriden by cmdline value)
  82 #   - define TOOLCHAIN_ASFLAGS variable (overriden by cmdline value)
  83 #   - may override any previously defined variable
  84 #
  85 include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.vars.mk
  86
  87 #
  88 # exec-env:
  89 #
  90 #   - define EXECENV_CFLAGS variable (overriden by cmdline)
  91 #   - define EXECENV_LDFLAGS variable (overriden by cmdline)
  92 #   - define EXECENV_ASFLAGS variable (overriden by cmdline)
  93 #   - may override any previously defined variable
  94 #
  95 include $(RTE_SDK)/mk/exec-env/$(RTE_EXEC_ENV)/rte.vars.mk
  96
  97 # Don't set CFLAGS/LDFLAGS flags for kernel module, all flags are
  98 # provided by Kbuild framework.
  99 ifeq ($(KERNELRELEASE),)
 100
 101 # now that the environment is mostly set up, including the machine type we will
 102 # be passing to the compiler, set up the specific CPU flags based on that info.
 103 include $(RTE_SDK)/mk/rte.cpuflags.mk
 104
 105 # merge all CFLAGS
 106 CFLAGS := $(CPU_CFLAGS) $(EXECENV_CFLAGS) $(TOOLCHAIN_CFLAGS) $(MACHINE_CFLAGS)
 107 CFLAGS += $(TARGET_CFLAGS)
 108
 109 # merge all LDFLAGS
 110 LDFLAGS := $(CPU_LDFLAGS) $(EXECENV_LDFLAGS) $(TOOLCHAIN_LDFLAGS) $(MACHINE_LDFLAGS)
 111 LDFLAGS += $(TARGET_LDFLAGS)
 112
 113 # merge all ASFLAGS
 114 ASFLAGS := $(CPU_ASFLAGS) $(EXECENV_ASFLAGS) $(TOOLCHAIN_ASFLAGS) $(MACHINE_ASFLAGS)
 115 ASFLAGS += $(TARGET_ASFLAGS)
 116
 117 # add default include and lib paths
 118 CFLAGS += -I$(RTE_OUTPUT)/include
 119 LDFLAGS += -L$(RTE_OUTPUT)/lib
 120
 121 # always include rte_config.h: the one in $(RTE_OUTPUT)/include is
 122 # the configuration of SDK when $(BUILDING_RTE_SDK) is true, or the
 123 # configuration of the application if $(BUILDING_RTE_SDK) is not
 124 # defined.
 125 ifeq ($(BUILDING_RTE_SDK),1)
 126 # building sdk
 127 CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h
 128 ifeq ($(CONFIG_RTE_INSECURE_FUNCTION_WARNING),y)
 129 CFLAGS += -include rte_warnings.h
 130 endif
 131 else
 132 # if we are building an external application, include SDK's lib and
 133 # includes too
 134 CFLAGS += -I$(RTE_SDK_BIN)/include
 135 ifneq ($(wildcard $(RTE_OUTPUT)/include/rte_config.h),)
 136 CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h
 137 endif
 138 CFLAGS += -include $(RTE_SDK_BIN)/include/rte_config.h
 139 ifeq ($(CONFIG_RTE_INSECURE_FUNCTION_WARNING),y)
 140 CFLAGS += -include rte_warnings.h
 141 endif
 142 LDFLAGS += -L$(RTE_SDK_BIN)/lib
 143 endif
 144
 145 export CFLAGS
 146 export LDFLAGS
 147
 148 endif