diff options
Diffstat (limited to 'arch/sh/Makefile')
| -rw-r--r-- | arch/sh/Makefile | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 1f409bf8180..c43eb0d7fa3 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -2,7 +2,7 @@ # arch/sh/Makefile # # Copyright (C) 1999 Kaz Kojima -# Copyright (C) 2002, 2003, 2004 Paul Mundt +# Copyright (C) 2002 - 2008 Paul Mundt # Copyright (C) 2002 M. R. Brown # # This file is subject to the terms and conditions of the GNU General Public @@ -18,16 +18,12 @@ isa-$(CONFIG_CPU_SH4) := sh4 isa-$(CONFIG_CPU_SH4A) := sh4a isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al isa-$(CONFIG_CPU_SH5) := shmedia -isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp -ifndef CONFIG_SH_DSP -ifndef CONFIG_SH_FPU -isa-y := $(isa-y)-nofpu -endif +ifeq ($(CONFIG_SUPERH32),y) +isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp +isa-y := $(isa-y)-up endif -isa-y := $(isa-y)-up - cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,) cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \ $(call cc-option,-m2a-nofpu,) @@ -38,6 +34,22 @@ cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \ $(call cc-option,-m4a-nofpu,) cflags-$(CONFIG_CPU_SH5) := $(call cc-option,-m5-32media-nofpu,) +ifeq ($(cflags-y),) +# +# In the case where we are stuck with a compiler that has been uselessly +# restricted to a particular ISA, a favourite default of newer GCCs when +# extensive multilib targets are not provided, ensure we get the best fit +# regarding FP generation. This is necessary to avoid references to FP +# variants in libgcc where integer variants exist, which otherwise result +# in link errors. This is intentionally stupid (albeit many orders of +# magnitude less than GCC's default behaviour), as anything with a large +# number of multilib targets better have been built correctly for +# the target in mind. +# +cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \ + grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//') +endif + cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml @@ -65,7 +77,8 @@ OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \ -R .stab -R .stabstr -S # Give the various platforms the opportunity to set default image types -defaultimage-$(CONFIG_SUPERH32) := zImage +defaultimage-$(CONFIG_SUPERH32) := zImage +defaultimage-$(CONFIG_SH_SH7785LCR) := uImage # Set some sensible Kbuild defaults KBUILD_DEFCONFIG := shx3_defconfig |