config.mk 1.3 KB

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  1. #
  2. # (C) Copyright 2000-2010
  3. # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. #
  5. # SPDX-License-Identifier: GPL-2.0+
  6. #
  7. ifeq ($(CROSS_COMPILE),)
  8. CROSS_COMPILE := ppc_8xx-
  9. endif
  10. CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
  11. LDFLAGS_FINAL += --gc-sections
  12. LDFLAGS_FINAL += --bss-plt
  13. PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
  14. -meabi
  15. PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2
  16. PLATFORM_LDFLAGS += -n
  17. # Support generic board on PPC
  18. __HAVE_ARCH_GENERIC_BOARD := y
  19. #
  20. # When cross-compiling on NetBSD, we have to define __PPC__ or else we
  21. # will pick up a va_list declaration that is incompatible with the
  22. # actual argument lists emitted by the compiler.
  23. #
  24. # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
  25. ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
  26. PLATFORM_CPPFLAGS+= -D__PPC__
  27. endif
  28. ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
  29. PLATFORM_CPPFLAGS+= -D__PPC__
  30. endif
  31. # Only test once
  32. ifneq ($(CONFIG_SPL_BUILD),y)
  33. archprepare: checkgcc4
  34. # GCC 3.x is reported to have problems generating the type of relocation
  35. # that U-Boot wants.
  36. # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
  37. checkgcc4:
  38. @if test $(call cc-version) -lt 0400; then \
  39. echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
  40. false; \
  41. fi
  42. endif