[XS] Change in coreboot[main]: util/xcompile: Use a more complete clang target

[Felix Singer (Code Review)]

Felix Singer has submitted this change. ( https://review.coreboot.org/c/coreboot/+/80730?usp=email )

Change subject: util/xcompile: Use a more complete clang target
......................................................................

util/xcompile: Use a more complete clang target

When the compiler is used as a linker frontend clang tries to match the
target string with what it supports internally. If it's not sufficiently
complete it will forward linking to GCC which is not desirable. This is
necessary when doing LTO with clang.

Change-Id: Ie9356a2bc0f5b77e934cc16482d6ccb1961195dc
Signed-off-by: Arthur Heymans 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80730
Reviewed-by: Felix Singer 
Tested-by: build bot (Jenkins) 
---
M util/xcompile/xcompile
1 file changed, 2 insertions(+), 2 deletions(-)

Approvals:
  Felix Singer: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile
index 68b3705..ad4361d 100755
--- a/util/xcompile/xcompile
+++ b/util/xcompile/xcompile
@@ -466,7 +466,7 @@

for clang_arch in $TCLIST invalid; do
    	for clang_prefix in $search $XGCCPATH "$GENERIC_COMPILER_PREFIX"; do
-			testcc "${clang_prefix}clang" "-target ${clang_arch}-$TABI -c" && break 2
+			testcc "${clang_prefix}clang" "-target ${clang_arch}-none-unknown-${TABI} -c" && break 2
    	done
    done

@@ -475,7 +475,7 @@
    	# but that's more of a clang limitation. Let's be optimistic
    	# that this will change in the future.
    	CLANG="${clang_prefix}clang"
-		CLANG_TARGET="-target ${clang_arch}-${TABI}"
+		CLANG_TARGET="-target ${clang_arch}-none-unknown-${TABI}"
    	CFLAGS_CLANG="$CLANG_TARGET $CFLAGS_CLANG"
    	CPPFLAGS_CLANG="$CLANG_TARGET $CPPFLAGS_CLANG"
    fi