diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/trylink | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/scripts/trylink b/scripts/trylink index 6947307..cede22b 100755 --- a/scripts/trylink +++ b/scripts/trylink @@ -14,9 +14,11 @@ try() { BBOX_LIB_LIST=`echo "$BBOX_LIB_LIST" | xargs -n1 | sort | uniq | xargs` # First link with all libs. If it fails, bail out -l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'` +l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'` + echo "Trying libraries: $BBOX_LIB_LIST" -try "-Wl,--start-group $l_list -Wl,--end-group" "$@" \ +test "x$l_list" != "x" && l_list="-Wl,--start-group $l_list -Wl,--end-group" +try "$l_list" "$@" \ || { echo "Failed: $* -Wl,--start-group $l_list -Wl,--end-group" cat busybox_ld.err @@ -38,16 +40,8 @@ while test "$BBOX_LIB_LIST"; do all_needed=true for one in $BBOX_LIB_LIST; do without_one=`echo " $BBOX_LIB_LIST " | sed "s/ $one / /g" | xargs` - l_list=`echo "$without_one" | sed -e 's/ / -l/g' -e 's/^/-l/'` - # If l_list is just "-l" without a lib, then make sure to test the - # correct thing to fail: just using -l will fail, so the last lib - # (usually m in my case) will incorrectly be added as needed. - if test "x$without_one" != "x"; then - l_list="-Wl,--start-group $l_list -Wl,--end-group" - else - # without_one is empty, so l_list has to be empty too - l_list="" - fi + l_list=`echo "$without_one" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'` + test "x$l_list" != "x" && l_list="-Wl,--start-group $l_list -Wl,--end-group" $debug && echo "Trying -l options: '$l_list'" if try "$l_list" "$@"; then echo "Library $one is not needed" @@ -71,10 +65,12 @@ done ####$ever_discarded && { # Make the binary with final, minimal list of libs echo "Final link with: $BBOX_LIB_LIST" - l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'` + l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'` # --verbose gives us gobs of info to stdout (e.g. linker script used) + test "x$l_list" != "x" && l_list="-Wl,--start-group $l_list -Wl,--end-group -Wl,--verbose" if ! test -f busybox_ldscript; then - try "-Wl,--start-group $l_list -Wl,--end-group -Wl,--verbose" "$@" >busybox_ld.out ####|| exit 1 + + try "$l_list" "$@" >busybox_ld.out ####|| exit 1 else echo "Custom linker script 'busybox_ldscript' found, using it" # Add SORT_BY_ALIGNMENT to linker script (found in busybox_ld.out): @@ -82,7 +78,7 @@ done # *(.data SORT_BY_ALIGNMENT(.data.*) .gnu.linkonce.d.*) # *(.bss SORT_BY_ALIGNMENT(.bss.*) .gnu.linkonce.b.*) # This will eliminate most of the data padding (~3kb). - try "-Wl,--start-group $l_list -Wl,--end-group -Wl,--verbose -Wl,-T -Wl,busybox_ldscript" "$@" >busybox_ld.out + try "$l_list -Wl,-T -Wl,busybox_ldscript" "$@" >busybox_ld.out fi ####} ####rm busybox_ld.err |