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authorAlexey Brodkin <abrodkin@synopsys.com>2018-09-16 23:47:57 +0300
committerVineet Gupta <vgupta@synopsys.com>2018-09-18 23:24:34 +0300
commit40660f1fcee8d524a60b5101538e42b1f39f106d (patch)
treef4813d37f7cca71f580fad8c9ec12f8ac0a8095a /arch/arc
parent7c2020c3022dfa6801d420b55ef0c507322d2c60 (diff)
downloadlinux-40660f1fcee8d524a60b5101538e42b1f39f106d.tar.xz
ARC: build: Don't set CROSS_COMPILE in arch's Makefile
There's not much sense in doing that because if user or his build-system didn't set CROSS_COMPILE we still may very well make incorrect guess. But as it turned out setting CROSS_COMPILE is not as harmless as one may think: with recent changes that implemented automatic discovery of __host__ gcc features unconditional setup of CROSS_COMPILE leads to failures on execution of "make xxx_defconfig" with absent cross-compiler, for more info see [1]. Set CROSS_COMPILE as well gets in the way if we want only to build .dtb's (again with absent cross-compiler which is not really needed for building .dtb's), see [2]. Note, we had to change LIBGCC assignment type from ":=" to "=" so that is is resolved on its usage, otherwise if it is resolved at declaration time with missing CROSS_COMPILE we're getting this error message from host GCC: | gcc: error: unrecognized command line option -mmedium-calls | gcc: error: unrecognized command line option -mno-sdata [1] http://lists.infradead.org/pipermail/linux-snps-arc/2018-September/004308.html [2] http://lists.infradead.org/pipermail/linux-snps-arc/2018-September/004320.html Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Rob Herring <robh@kernel.org> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Makefile10
1 files changed, 1 insertions, 9 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 0dbce0235617..644815c0516e 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,14 +6,6 @@
# published by the Free Software Foundation.
#
-ifeq ($(CROSS_COMPILE),)
-ifndef CONFIG_CPU_BIG_ENDIAN
-CROSS_COMPILE := arc-linux-
-else
-CROSS_COMPILE := arceb-linux-
-endif
-endif
-
KBUILD_DEFCONFIG := nsim_700_defconfig
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
@@ -65,7 +57,7 @@ cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian
ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
-LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
+LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode