New patch to review for coreboot: xcompile: Quote variables to prevent globbing and splitting.

[Martin Roth]

Martin Roth ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12845

-gerrit

commit 78616a467ac56b16b76d8f7eb6d0c5493b356166
Author: Martin Roth 
Date:   Tue Jan 5 15:55:44 2016 -0700

xcompile: Quote variables to prevent globbing and splitting.

Quoting variables prevents word splitting and glob expansion, and
    prevents the script from breaking when input contains spaces, line
    feeds, glob characters and such.

See shellcheck warning SC2086

Change-Id: Ib6ca46b64a621c4bea5c33ac312f2824b0386235
    Signed-off-by: Martin Roth 
---
 util/xcompile/xcompile | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile
index 48df75b..b3dd074 100755
--- a/util/xcompile/xcompile
+++ b/util/xcompile/xcompile
@@ -52,7 +52,7 @@ program_exists() {
 }

-if [ "$(${XGCCPATH}/iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
+if [ "$("${XGCCPATH}/iasl" 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
    IASL=${XGCCPATH}iasl
 elif [ "$(iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
    IASL=iasl
@@ -107,11 +107,11 @@ testas() {
    rm -f "$obj_file"
    [ -n "$use_dash_twidth" ] && use_dash_twidth="--$twidth"
    [ -n "$endian" ] && endian="-$endian"
-	${gccprefix}as $use_dash_twidth $endian -o "$obj_file" $TMPFILE \
+	"${gccprefix}as" $use_dash_twidth $endian -o "$obj_file" "$TMPFILE" \
    	2>/dev/null || return 1

# Check output content type.
-	local obj_type="$(LANG=C LC_ALL= ${gccprefix}objdump -p $obj_file 2>/dev/null)"
+	local obj_type="$(LANG=C LC_ALL='' "${gccprefix}"objdump -p "$obj_file" 2>/dev/null)"
    local obj_arch="$(expr "$obj_type" : '.*format (.[a-z0-9-]*)')"
    [ "$obj_arch" = "$full_arch" ] || return 1

@@ -329,8 +329,8 @@ test_architecture() {
    unset TABI TARCH TBFDARCH TCLIST TENDIAN TSUPP TWIDTH
    unset CC_RT_EXTRA_GCC CC_RT_EXTRA_CLANG
    unset GCC CLANG
-	if type arch_config_$architecture > /dev/null; then
-		arch_config_$architecture
+	if type "arch_config_$architecture" > /dev/null; then
+		"arch_config_$architecture"
    else
    	die "no architecture definition for $architecture"
    fi
@@ -339,7 +339,7 @@ test_architecture() {
    # environment variable.
    # Ex: CROSS_COMPILE_arm="armv7a-cros-linux-gnueabi-"
    #     CROSS_COMPILE_x86="i686-pc-linux-gnu-"
-	search="$(eval echo $CROSS_COMPILE_$architecture 2>/dev/null)"
+	search="$(eval echo "$CROSS_COMPILE_$architecture" 2>/dev/null)"
    search="$search $CROSS_COMPILE"
    for toolchain in $TCLIST; do
    	search="$search $XGCCPATH$toolchain-$TABI-"
@@ -382,7 +382,7 @@ test_architecture() {

# This loops over all supported architectures.
 for architecture in $SUPPORTED_ARCHITECTURES; do
-	test_architecture $architecture
+	test_architecture "$architecture"
    detect_special_flags "$architecture"
    detect_compiler_runtime "$architecture"
    report_arch_toolchain