arch/hexagon/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #  Makefile for the Hexagon arch
   3
   4 KBUILD_DEFCONFIG = comet_defconfig
   5
   6 # Do not use GP-relative jumps
   7 KBUILD_CFLAGS += -G0
   8 LDFLAGS_vmlinux += -G0
   9
  10 # Do not use single-byte enums; these will overflow.
  11 KBUILD_CFLAGS += -fno-short-enums
  12
  13 # Modules must use either long-calls, or use pic/plt.
  14 # Use long-calls for now, it's easier.  And faster.
  15 # KBUILD_CFLAGS_MODULE += -fPIC
  16 # KBUILD_LDFLAGS_MODULE += -shared
  17 KBUILD_CFLAGS_MODULE += -mlong-calls
  18
  19 cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
  20 aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
  21 ldflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
  22
  23 KBUILD_CFLAGS += $(cflags-y)
  24 KBUILD_AFLAGS += $(aflags-y)
  25 KBUILD_LDFLAGS += $(ldflags-y)
  26
  27 # Thread-info register will be r19.  This value is not configureable;
  28 # it is hard-coded in several files.
  29 TIR_NAME := r19
  30 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
  31 KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
  32
  33 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null)
  34 libs-y += $(LIBGCC)
  35
  36 head-y := arch/hexagon/kernel/head.o
  37
  38 core-y += arch/hexagon/kernel/ \
  39         arch/hexagon/mm/ \
  40         arch/hexagon/lib/