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build: Allow clang build linkage to use libcompiler-rt

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Make use of '-print-librt-file-name' over '-print-libgcc-file-name'
to use Compiler-RT runtime glue over libgcc glue.

NOTE: *** Requires at least clang 3.6.x

Change-Id: I7f63284473d6067bf775409970c8dd98f5d5a8d5
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6144
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Edward O'Callaghan
2014-06-28 03:02:52 +10:00
parent 2c9d2cf75c
commit dd91c7f6d3
3 changed files with 8 additions and 5 deletions
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6
Makefile
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@@ -117,8 +117,10 @@ else
include $(HAVE_DOTCONFIG)
ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
# FIXME: arm/aarch64 won't build right now
CFLAGS_x86_32 = -no-integrated-as -Qunused-arguments -target i386-elf -m32
# FIXME: armv7/aarch64 won't build right now
# NOTE: clang puts compiler-rt under lib/linux/libclang_rt.builtins-i386.a
# this means the triple is i386-linux-elf instead of i386-none-elf
CFLAGS_x86_32 = -no-integrated-as -Qunused-arguments -target i386-linux-elf -m32
CC_x86_32:=clang
ifneq ($(CONFIG_MMX),y)