Makefile 1.2 KB

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