Makefile 2.9 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) += $(call cc-option,-march=z990)
  34. # old style option for packed stacks
  35. ifeq ($(call cc-option-yn,-mkernel-backchain),y)
  36. cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
  37. aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
  38. cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  39. aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  40. ifdef CONFIG_SMALL_STACK
  41. STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  42. endif
  43. endif
  44. # new style option for packed stacks
  45. ifeq ($(call cc-option-yn,-mpacked-stack),y)
  46. cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
  47. aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
  48. cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  49. aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  50. ifdef CONFIG_SMALL_STACK
  51. STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  52. endif
  53. endif
  54. ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
  55. cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
  56. cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
  57. endif
  58. ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
  59. cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
  60. cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
  61. endif
  62. CFLAGS += -mbackchain -msoft-float $(cflags-y)
  63. CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
  64. AFLAGS += $(aflags-y)
  65. OBJCOPYFLAGS := -O binary
  66. LDFLAGS_vmlinux := -e start
  67. head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
  68. core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \
  69. arch/$(ARCH)/appldata/
  70. libs-y += arch/$(ARCH)/lib/
  71. drivers-y += drivers/s390/
  72. drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/
  73. # must be linked after kernel
  74. drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
  75. boot := arch/$(ARCH)/boot
  76. all: image
  77. install: vmlinux
  78. $(Q)$(MAKE) $(build)=$(boot) $@
  79. image: vmlinux
  80. $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  81. archclean:
  82. $(Q)$(MAKE) $(clean)=$(boot)
  83. # Don't use tabs in echo arguments
  84. define archhelp
  85. echo '* image - Kernel image for IPL ($(boot)/image)'
  86. endef