[coreboot-gerrit] Patch set updated for coreboot: xcompile: add support for x86-64

[Stefan Reinauer (stefan.reinauer@coreboot.org)]

Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8669

-gerrit

commit 561dcc4a134aa1fbec4016226c82d1134c510182
Author: Stefan Reinauer <stefan.reinauer at coreboot.org>
Date:   Fri Mar 13 22:52:47 2015 +0100

    xcompile: add support for x86-64
    
    Add support for detecting an x86-64 cross compiler in xcompile.
    
    Change-Id: Icd2c9af7903956216db1fd54902eab6da0fe3e21
    Signed-off-by: Stefan Reinauer <stefan.reinauer at coreboot.org>
    Signed-off-by: Scott Duplichan <scott at notabs.org>
---
 util/xcompile/xcompile | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile
index 97dd7c4..6cad710 100755
--- a/util/xcompile/xcompile
+++ b/util/xcompile/xcompile
@@ -128,6 +128,10 @@ detect_special_flags() {
 	testcc "$GCC"      "$CFLAGS_GCC -Wno-unused-but-set-variable " &&
 		CFLAGS_GCC="$CFLAGS_GCC -Wno-unused-but-set-variable "
 
+	# Check for an operational -m32/-m64
+	testcc "$GCC"      "$CFLAGS_GCC -m$TWIDTH " &&
+		CFLAGS_GCC="$CFLAGS_GCC -m$TWIDTH "
+
 	# Use bfd linker instead of gold if available:
 	testcc "$GCC"      "$CFLAGS_GCC -fuse-ld=bfd" &&
 		CFLAGS_GCC="$CFLAGS_GCC -fuse-ld=bfd" && LINKER_SUFFIX='.bfd'
@@ -137,12 +141,15 @@ detect_special_flags() {
 	testcc "$GCC"      "$CFLAGS_GCC -Wl,--build-id=none" &&
 		CFLAGS_GCC="$CFLAGS_GCC -Wl,--build-id=none"
 
+	# Make sure that / in assembler code means division,
+	# not comment
+	testcc "$GCC"      "$CFLAGS_GCC -Wa,--divide" &&
+		CFLAGS_GCC="$CFLAGS_GCC -Wa,--divide"
+	testcc "$CLANG"      "$CFLAGS_CLANG -Wa,--divide" &&
+		CFLAGS_CLANG="$CFLAGS_CLANG -Wa,--divide"
+
 	case "$architecture" in
 	x86)
-		testcc "$GCC"      "$CFLAGS_GCC -Wa,--divide" &&
-			CFLAGS_GCC="$CFLAGS_GCC -Wa,--divide"
-		testcc "$CLANG"      "$CFLAGS_CLANG -Wa,--divide" &&
-			CFLAGS_CLANG="$CFLAGS_CLANG -Wa,--divide"
 		# Always build for i686 -- no sse/mmx instructions since SMM
 		# modules are compiled using these flags. Note that this
 		# doesn't prevent a project using xcompile to explicitly
@@ -201,7 +208,7 @@ EOF
 }
 
 # Architecture definitions
-SUPPORTED_ARCHITECTURES="arm arm64 mipsel riscv x86"
+SUPPORTED_ARCHITECTURES="arm arm64 mipsel riscv x64 x86"
 
 arch_config_arm() {
 	TARCH="arm"
@@ -229,6 +236,14 @@ arch_config_riscv() {
 	TABI="elf"
 }
 
+arch_config_x64() {
+	TARCH="x86_64"
+	TBFDARCHS="x86-64"
+	TCLIST="x86_64"
+	TWIDTH="64"
+	TABI="elf"
+}
+
 arch_config_x86() {
 	TARCH="x86_32"
 	TBFDARCHS="i386"