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| author | Denis Vlasenko | 2007-11-13 17:36:12 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2007-11-13 17:36:12 +0000 |
| commit | 130f559f4dcb64fc7dbf55aebaf0def4f601ac2f (patch) | |
| tree | 0598ab5d54715334cf85f7eb09ff745972ce5b72 | |
| parent | 05c8c4f745831f6f18e312f9ccc22bfbf2e8a605 (diff) | |
| download | busybox-130f559f4dcb64fc7dbf55aebaf0def4f601ac2f.zip busybox-130f559f4dcb64fc7dbf55aebaf0def4f601ac2f.tar.gz | |
trylink: accomodate older versions of ld
| -rwxr-xr-x | scripts/trylink | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/scripts/trylink b/scripts/trylink index 7fe262b..4fea6fe 100755 --- a/scripts/trylink +++ b/scripts/trylink @@ -46,6 +46,14 @@ try() { 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" CC="$2" LDFLAGS="$3" @@ -53,6 +61,9 @@ O_FILES="$4" A_FILES="$5" LDLIBS="$6" +# The -Wl,--sort-section option is not supported by older versions of ld +SORT_SECTION=`check_cc "-Wl,--sort-section -Wl,alignment" ""` + # Sanitize lib list (dups, extra spaces etc) LDLIBS=`echo "$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 \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ $l_list \ @@ -88,7 +99,7 @@ while test "$LDLIBS"; do try $CC $LDFLAGS \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ $l_list @@ -117,7 +128,7 @@ if ! test -f busybox_ldscript; then try $CC $LDFLAGS \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -Wl,--start-group $O_FILES $A_FILES -Wl,--end-group \ $l_list \ @@ -139,7 +150,7 @@ else try $CC $LDFLAGS \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -Wl,-T -Wl,busybox_ldscript \ -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,--undefined=lbb_main \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--start-group $A_FILES -Wl,--end-group \ $l_list \ -Wl,--warn-common \ @@ -195,7 +206,7 @@ if test "$CONFIG_FEATURE_SHARED_BUSYBOX" = y; then try $CC $LDFLAGS \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -Wl,--start-group $O_FILES -Wl,--end-group \ -L"$sharedlib_dir" -lbusybox \ @@ -234,7 +245,7 @@ int main(int argc, char **argv) try $CC $LDFLAGS "$sharedlib_dir/applet.c" \ -o $EXE \ -Wl,--sort-common \ - -Wl,--sort-section -Wl,alignment \ + $SORT_SECTION \ -Wl,--gc-sections \ -L"$sharedlib_dir" -lbusybox \ -Wl,--warn-common \ |