toolchain/toolchain-wrapper.mk

   1 ################################################################################
   2 #
   3 # definition of the toolchain wrapper build commands
   4 #
   5 ################################################################################
   6
   7 # We use --hash-style=both to increase the compatibility of the generated
   8 # binary with older platforms, except for MIPS, where the only acceptable
   9 # hash style is 'sysv'
  10 ifeq ($(findstring mips,$(HOSTARCH)),mips)
  11 TOOLCHAIN_WRAPPER_HASH_STYLE = sysv
  12 else
  13 TOOLCHAIN_WRAPPER_HASH_STYLE = both
  14 endif
  15
  16 TOOLCHAIN_WRAPPER_ARGS = $($(PKG)_TOOLCHAIN_WRAPPER_ARGS)
  17 TOOLCHAIN_WRAPPER_ARGS += -DBR_SYSROOT='"$(STAGING_SUBDIR)"'
  18
  19 # We create a list like '"-mfoo", "-mbar", "-mbarfoo"' so that each flag is a
  20 # separate argument when used in execv() by the toolchain wrapper.
  21 TOOLCHAIN_WRAPPER_OPTS = \
  22         $(foreach f,$(call qstrip,$(BR2_TARGET_OPTIMIZATION)),"$(f)"$(comma))
  23 TOOLCHAIN_WRAPPER_ARGS += -DBR_ADDITIONAL_CFLAGS='$(TOOLCHAIN_WRAPPER_OPTS)'
  24
  25 ifeq ($(BR2_CCACHE),y)
  26 TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE
  27 endif
  28
  29 ifeq ($(BR2_x86_x1000),y)
  30 TOOLCHAIN_WRAPPER_ARGS += -DBR_OMIT_LOCK_PREFIX
  31 endif
  32
  33 # Avoid FPU bug on XBurst CPUs
  34 ifeq ($(BR2_mips_xburst),y)
  35 # Before gcc 4.6, -mno-fused-madd was needed, after -ffp-contract is
  36 # needed
  37 ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_6),y)
  38 TOOLCHAIN_WRAPPER_ARGS += -DBR_FP_CONTRACT_OFF
  39 else
  40 TOOLCHAIN_WRAPPER_ARGS += -DBR_NO_FUSED_MADD
  41 endif
  42 endif
  43
  44 ifeq ($(BR2_CCACHE_USE_BASEDIR),y)
  45 TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE_BASEDIR='"$(BASE_DIR)"'
  46 endif
  47
  48 define TOOLCHAIN_WRAPPER_BUILD
  49         $(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_WRAPPER_ARGS) \
  50                 -s -Wl,--hash-style=$(TOOLCHAIN_WRAPPER_HASH_STYLE) \
  51                 toolchain/toolchain-wrapper.c \
  52                 -o $(@D)/toolchain-wrapper
  53 endef
  54
  55 define TOOLCHAIN_WRAPPER_INSTALL
  56         $(INSTALL) -D -m 0755 $(@D)/toolchain-wrapper \
  57                 $(HOST_DIR)/bin/toolchain-wrapper
  58 endef