libgcc.inc: Fix an issue w/ a recursive symlink

If the OS is not Linux, the code could end up generating a recursive symlink.
This can happen because the same symlink can be created twice in a row.  If this
happenes, the second symlink becomes a link to itself within the directory
pointed to by the original link.

In order to prevent this, verify that the destination does not already exist.

(From OE-Core rev: ef28e5a74d939acc98d6e8e9a0efbeb143b8025f)

Signed-off-by: Mark Hatle <mark.hatle@xilinx.com>
Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/meta/recipes-devtools/gcc/libgcc.inc b/meta/recipes-devtools/gcc/libgcc.inc
index e008d14f36..6d48ec9809 100644
--- a/meta/recipes-devtools/gcc/libgcc.inc
+++ b/meta/recipes-devtools/gcc/libgcc.inc
@@ -9,14 +9,18 @@ do_install_append_class-target () {
                         "linux-musleabi") extra_target_os="linux-gnueabi";;
                         *) extra_target_os="linux";;
                 esac
-                ln -s ${TARGET_SYS} ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os
+                if [ ! -e ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os ]; then
+                        ln -s ${TARGET_SYS} ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os
+                fi
         fi
         if [ -n "${@ bb.utils.contains('TUNE_CCARGS_MFLOAT', 'hard', 'hf', '', d)}" ]; then
                 case "${TARGET_OS}" in
                         "linux-musleabi") extra_target_os="linux-musleabihf";;
                         "linux-gnueabi") extra_target_os="linux-gnueabihf";;
                 esac
-                ln -s ${TARGET_SYS} ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os
+                if [ ! -e ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os ]; then
+                        ln -s ${TARGET_SYS} ${D}${libdir}/${TARGET_ARCH}${TARGET_VENDOR}-$extra_target_os
+                fi
         fi
 }