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trylink: accomodate older versions of ld

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This commit is contained in:
Denis Vlasenko 2007-11-13 17:36:12 +00:00
parent 05c8c4f745
commit 130f559f4d
1 changed files with 18 additions and 7 deletions
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25
scripts/trylink
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@ -46,6 +46,14 @@ try() {
return $exitcode return $exitcode
} }
check_cc() {
if $CC $1 -shared -o /dev/null -xc /dev/null > /dev/null 2>&1; then
echo "$1";
else
echo "$2";
fi
}
EXE="$1" EXE="$1"
CC="$2" CC="$2"
LDFLAGS="$3" LDFLAGS="$3"
@ -53,6 +61,9 @@ O_FILES="$4"
A_FILES="$5" A_FILES="$5"
LDLIBS="$6" LDLIBS="$6"
# The -Wl,--sort-section option is not supported by older versions of ld
SORT_SECTION=`check_cc "-Wl,--sort-section -Wl,alignment" ""`
# Sanitize lib list (dups, extra spaces etc) # Sanitize lib list (dups, extra spaces etc)
LDLIBS=`echo "$LDLIBS" | xargs -n1 | sort | uniq | xargs` LDLIBS=`echo "$LDLIBS" | xargs -n1 | sort | uniq | xargs`
@ -64,7 +75,7 @@ test "x$l_list" != "x" && l_list="-Wl,--start-group $l_list -Wl,--end-group"
try $CC $LDFLAGS \ try $CC $LDFLAGS \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \
$l_list \ $l_list \
@ -88,7 +99,7 @@ while test "$LDLIBS"; do
try $CC $LDFLAGS \ try $CC $LDFLAGS \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \
$l_list $l_list
@ -117,7 +128,7 @@ if ! test -f busybox_ldscript; then
try $CC $LDFLAGS \ try $CC $LDFLAGS \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \
$l_list \ $l_list \
@ -139,7 +150,7 @@ else
try $CC $LDFLAGS \ try $CC $LDFLAGS \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-Wl,-T -Wl,busybox_ldscript \ -Wl,-T -Wl,busybox_ldscript \
-Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \
@ -174,7 +185,7 @@ if test "$CONFIG_BUILD_LIBBUSYBOX" = y; then
-Wl,-soname="libbusybox.so.$BB_VER" \ -Wl,-soname="libbusybox.so.$BB_VER" \
-Wl,--undefined=lbb_main \ -Wl,--undefined=lbb_main \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--start-group $A_FILES -Wl,--end-group \ -Wl,--start-group $A_FILES -Wl,--end-group \
$l_list \ $l_list \
-Wl,--warn-common \ -Wl,--warn-common \
@ -195,7 +206,7 @@ if test "$CONFIG_FEATURE_SHARED_BUSYBOX" = y; then
try $CC $LDFLAGS \ try $CC $LDFLAGS \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-Wl,--start-group $O_FILES -Wl,--end-group \ -Wl,--start-group $O_FILES -Wl,--end-group \
-L"$sharedlib_dir" -lbusybox \ -L"$sharedlib_dir" -lbusybox \
@ -234,7 +245,7 @@ int main(int argc, char **argv)
try $CC $LDFLAGS "$sharedlib_dir/applet.c" \ try $CC $LDFLAGS "$sharedlib_dir/applet.c" \
-o $EXE \ -o $EXE \
-Wl,--sort-common \ -Wl,--sort-common \
-Wl,--sort-section -Wl,alignment \ $SORT_SECTION \
-Wl,--gc-sections \ -Wl,--gc-sections \
-L"$sharedlib_dir" -lbusybox \ -L"$sharedlib_dir" -lbusybox \
-Wl,--warn-common \ -Wl,--warn-common \