linux/arch/hexagon/Makefile
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   1#  Makefile for the Hexagon arch
   2
   3KBUILD_DEFCONFIG = comet_defconfig
   4
   5# Do not use GP-relative jumps
   6KBUILD_CFLAGS += -G0
   7LDFLAGS_vmlinux += -G0
   8
   9# Do not use single-byte enums; these will overflow.
  10KBUILD_CFLAGS += -fno-short-enums
  11
  12# Modules must use either long-calls, or use pic/plt.
  13# Use long-calls for now, it's easier.  And faster.
  14# CFLAGS_MODULE += -fPIC
  15# LDFLAGS_MODULE += -shared
  16CFLAGS_MODULE += -mlong-calls
  17
  18cflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
  19cflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
  20cflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
  21cflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
  22
  23aflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
  24aflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
  25aflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
  26aflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
  27
  28ldflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
  29ldflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
  30ldflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
  31ldflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
  32
  33KBUILD_CFLAGS += $(cflags-y)
  34KBUILD_AFLAGS += $(aflags-y)
  35
  36#  no KBUILD_LDFLAGS?
  37LDFLAGS += $(ldflags-y)
  38
  39# Thread-info register will be r19.  This value is not configureable;
  40# it is hard-coded in several files.
  41TIR_NAME := r19
  42KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
  43KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
  44
  45LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  46libs-y += $(LIBGCC)
  47
  48head-y := arch/hexagon/kernel/head.o
  49
  50core-y += arch/hexagon/kernel/ \
  51        arch/hexagon/mm/ \
  52        arch/hexagon/lib/
  53
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