Makefile 3.2 KB

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  1. #
  2. # s390/Makefile
  3. #
  4. # This file is included by the global makefile so that you can add your own
  5. # architecture-specific flags and dependencies. Remember to do have actions
  6. # for "archclean" and "archdep" for cleaning up and making dependencies for
  7. # this architecture
  8. #
  9. # This file is subject to the terms and conditions of the GNU General Public
  10. # License. See the file "COPYING" in the main directory of this archive
  11. # for more details.
  12. #
  13. # Copyright (C) 1994 by Linus Torvalds
  14. #
  15. ifndef CONFIG_64BIT
  16. LDFLAGS := -m elf_s390
  17. CFLAGS += -m31
  18. AFLAGS += -m31
  19. UTS_MACHINE := s390
  20. STACK_SIZE := 8192
  21. CHECKFLAGS += -D__s390__
  22. else
  23. LDFLAGS := -m elf64_s390
  24. MODFLAGS += -fpic -D__PIC__
  25. CFLAGS += -m64
  26. AFLAGS += -m64
  27. UTS_MACHINE := s390x
  28. STACK_SIZE := 16384
  29. CHECKFLAGS += -D__s390__ -D__s390x__
  30. endif
  31. cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
  32. cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
  33. cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
  34. cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109)
  35. #KBUILD_IMAGE is necessary for make rpm
  36. KBUILD_IMAGE :=arch/s390/boot/image
  37. #
  38. # Prevent tail-call optimizations, to get clearer backtraces:
  39. #
  40. cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
  41. # old style option for packed stacks
  42. ifeq ($(call cc-option-yn,-mkernel-backchain),y)
  43. cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
  44. aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
  45. cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  46. aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  47. ifdef CONFIG_SMALL_STACK
  48. STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  49. endif
  50. endif
  51. # new style option for packed stacks
  52. ifeq ($(call cc-option-yn,-mpacked-stack),y)
  53. cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
  54. aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
  55. cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  56. aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  57. ifdef CONFIG_SMALL_STACK
  58. STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  59. endif
  60. endif
  61. ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
  62. cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
  63. cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
  64. endif
  65. ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
  66. cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
  67. cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
  68. endif
  69. CFLAGS += -mbackchain -msoft-float $(cflags-y)
  70. CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
  71. AFLAGS += $(aflags-y)
  72. OBJCOPYFLAGS := -O binary
  73. LDFLAGS_vmlinux := -e start
  74. head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o
  75. core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
  76. arch/s390/appldata/ arch/s390/hypfs/
  77. libs-y += arch/s390/lib/
  78. drivers-y += drivers/s390/
  79. drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/
  80. # must be linked after kernel
  81. drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
  82. boot := arch/s390/boot
  83. all: image
  84. install: vmlinux
  85. $(Q)$(MAKE) $(build)=$(boot) $@
  86. image: vmlinux
  87. $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  88. archclean:
  89. $(Q)$(MAKE) $(clean)=$(boot)
  90. # Don't use tabs in echo arguments
  91. define archhelp
  92. echo '* image - Kernel image for IPL ($(boot)/image)'
  93. endef