The syntax CROSS_COMIPLE ?= <cross_compiler_prefix> does not work because config.mk is parsed after exporting CROSS_COMPILE.
Like Linux Kernel's arch/$(ARCH)/Makefile, we must write as follows:
ifeq ($(CROSS_COMPILE),) CROSS_COMPILE := <cross_compiler_prefix> endif
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com --- arch/arc/config.mk | 8 ++++++-- arch/arm/config.mk | 4 +++- arch/avr32/config.mk | 5 ++++- arch/blackfin/config.mk | 4 +++- arch/m68k/config.mk | 4 +++- arch/microblaze/config.mk | 4 +++- arch/mips/config.mk | 4 +++- arch/nds32/config.mk | 4 +++- arch/nios2/config.mk | 4 +++- arch/openrisc/config.mk | 4 +++- arch/powerpc/config.mk | 4 +++- arch/sh/config.mk | 4 +++- arch/sparc/config.mk | 4 +++- 13 files changed, 43 insertions(+), 14 deletions(-)
diff --git a/arch/arc/config.mk b/arch/arc/config.mk index 76f4f7c..d9f5d9d 100644 --- a/arch/arc/config.mk +++ b/arch/arc/config.mk @@ -9,14 +9,18 @@ CONFIG_SYS_LITTLE_ENDIAN = 1 endif
ifdef CONFIG_SYS_LITTLE_ENDIAN -CROSS_COMPILE ?= arc-buildroot-linux-uclibc- +ARC_CROSS_COMPILE := arc-buildroot-linux-uclibc- endif
ifdef CONFIG_SYS_BIG_ENDIAN -CROSS_COMPILE ?= arceb-buildroot-linux-uclibc- +ARC_CROSS_COMPILE := arceb-buildroot-linux-uclibc- PLATFORM_LDFLAGS += -EB endif
+ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := $(ARC_CROSS_COMPILE) +endif + PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -DCONFIG_ARC -gdwarf-2
LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 1db80be..792cb43 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= arm-linux- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := arm-linux- +endif
ifndef CONFIG_STANDALONE_LOAD_ADDR ifneq ($(CONFIG_OMAP_COMMON),) diff --git a/arch/avr32/config.mk b/arch/avr32/config.mk index b9b9631..28a371c 100644 --- a/arch/avr32/config.mk +++ b/arch/avr32/config.mk @@ -5,7 +5,10 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= avr32-linux- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := avr32-linux- +endif + PLATFORM_CPPFLAGS += -DCONFIG_AVR32 CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000
diff --git a/arch/blackfin/config.mk b/arch/blackfin/config.mk index 8510e1c..fcaa44f 100644 --- a/arch/blackfin/config.mk +++ b/arch/blackfin/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= bfin-uclinux- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := bfin-uclinux- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x1000 -m elf32bfin
diff --git a/arch/m68k/config.mk b/arch/m68k/config.mk index 79ae298..33b3d51 100644 --- a/arch/m68k/config.mk +++ b/arch/m68k/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= m68k-elf- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := m68k-elf- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x20000
diff --git a/arch/microblaze/config.mk b/arch/microblaze/config.mk index fc545a9..cdb321a 100644 --- a/arch/microblaze/config.mk +++ b/arch/microblaze/config.mk @@ -8,7 +8,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= mb- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := mb- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x80F00000
diff --git a/arch/mips/config.mk b/arch/mips/config.mk index 2abdebb..1899f51 100644 --- a/arch/mips/config.mk +++ b/arch/mips/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= mips_4KC- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := mips_4KC- +endif
# Handle special prefix in ELDK 4.0 toolchain ifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) diff --git a/arch/nds32/config.mk b/arch/nds32/config.mk index d0434a9..1024852 100644 --- a/arch/nds32/config.mk +++ b/arch/nds32/config.mk @@ -8,7 +8,9 @@ # # SPDX-License-Identifier: GPL-2.0+
-CROSS_COMPILE ?= nds32le-linux- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := nds32le-linux- +endif
CONFIG_STANDALONE_LOAD_ADDR = 0x300000 \ -T $(srctree)/examples/standalone/nds32.lds diff --git a/arch/nios2/config.mk b/arch/nios2/config.mk index 7d546ef..65a5a40 100644 --- a/arch/nios2/config.mk +++ b/arch/nios2/config.mk @@ -6,7 +6,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= nios2-elf- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := nios2-elf- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x02000000
diff --git a/arch/openrisc/config.mk b/arch/openrisc/config.mk index 13015eb..981edff 100644 --- a/arch/openrisc/config.mk +++ b/arch/openrisc/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= or32-elf- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := or32-elf- +endif
# r10 used for global object pointer, already set in OR32 GCC but just to be # clear diff --git a/arch/powerpc/config.mk b/arch/powerpc/config.mk index f75c3bf..e398f97 100644 --- a/arch/powerpc/config.mk +++ b/arch/powerpc/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= ppc_8xx- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := ppc_8xx- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 LDFLAGS_FINAL += --gc-sections diff --git a/arch/sh/config.mk b/arch/sh/config.mk index eefcbcd..0578fa3 100644 --- a/arch/sh/config.mk +++ b/arch/sh/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= sh4-linux- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := sh4-linux- +endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x8C000000 ifeq ($(CPU),sh2) diff --git a/arch/sparc/config.mk b/arch/sparc/config.mk index 7daf4ef..be59f58 100644 --- a/arch/sparc/config.mk +++ b/arch/sparc/config.mk @@ -5,7 +5,9 @@ # SPDX-License-Identifier: GPL-2.0+ #
-CROSS_COMPILE ?= sparc-elf- +ifeq ($(CROSS_COMPILE),) +CROSS_COMPILE := sparc-elf- +endif
gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)