gcc-cross: Install linker LTO plugin for binutils tools

This will ensure that ar/ranlib/nm can load the lto linker plugin like
gcc-ar, gcc-nm, gcc-ranlib does, this will let the behaviour match
between gcc wrappers for these tools, this should help LTO builds for
packages

(From OE-Core rev: d6658505089234476c1b35fc08fef1eb4f121e85)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-cross.inc b/meta/recipes-devtools/gcc/gcc-cross.inc
index e08807afad..dca4036ab5 100644
--- a/meta/recipes-devtools/gcc/gcc-cross.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross.inc
@@ -83,6 +83,8 @@ INHIBIT_PACKAGE_STRIP = "1"
 
 # Compute how to get from libexecdir to bindir in python (easier than shell)
 BINRELPATH = "${@os.path.relpath(d.expand("${STAGING_DIR_NATIVE}${prefix_native}/bin/${TARGET_SYS}"), d.expand("${libexecdir}/gcc/${TARGET_SYS}/${BINV}"))}"
+# linker plugin path
+LIBRELPATH = "${@os.path.relpath(d.expand("${libexecdir}/gcc/${TARGET_SYS}/${BINV}"), d.expand("${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/bfd-plugins"))}"
 
 do_install () {
         ( cd ${B}/${TARGET_SYS}/libgcc; oe_runmake 'DESTDIR=${D}' install-unwind_h-forbuild install-unwind_h )
@@ -92,7 +94,7 @@ do_install () {
         install -d ${D}${target_libdir}
 
         # Link gfortran to g77 to satisfy not-so-smart configure or hard coded g77
-        # gfortran is fully backwards compatible. This is a safe and practical solution. 
+        # gfortran is fully backwards compatible. This is a safe and practical solution.
         if [ -n "${@d.getVar('FORTRAN')}" ]; then
                 ln -sf ${STAGING_DIR_NATIVE}${prefix_native}/bin/${TARGET_PREFIX}gfortran ${STAGING_DIR_NATIVE}${prefix_native}/bin/${TARGET_PREFIX}g77 || true
                 fortsymlinks="g77 gfortran"
@@ -118,6 +120,10 @@ do_install () {
         cp ${S}/libquadmath/quadmath_weak.h ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include/
 
         find ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include-fixed -type f -not -name "README" -not -name limits.h -not -name syslimits.h | xargs rm -f
+
+        # install LTO linker plugins where binutils tools can find it
+        install -d ${D}${libdir}/bfd-plugins
+        ln -sf ${LIBRELPATH}/liblto_plugin.so ${D}${libdir}/bfd-plugins/liblto_plugin.so
 }
 
 do_package[noexec] = "1"