# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1301958148 -7200
# Node ID 369664fd7cba9aaa36f666d2fe66d0e14a205df7
# Parent  1752ade7dc520c125cd73035973b4ae96e9e6175
binutils/binutils: add blind option to force use of ld.bfd during build

gold is not capable of building glibc/eglibc, so we have to
force using the BFD linker, ld.bfd.

Offer a blind option that affected components can select to
force use of the BFD linker during the build.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff -r 1752ade7dc52 -r 369664fd7cba config/binutils/binutils.in
--- a/config/binutils/binutils.in	Tue Apr 05 23:34:16 2011 +0200
+++ b/config/binutils/binutils.in	Tue Apr 05 01:02:28 2011 +0200
@@ -80,6 +80,12 @@
 config ARCH_x86
     select BINUTILS_GOLD_SUPPORTS_ARCH
 
+# Force using the BFD linker if needed
+# This is the case for some C libraries (eg. glibc and
+# eglibc at least) and affected components can select this
+config BINUTILS_FORCE_LD_BFD
+    bool
+
 choice
     bool
     prompt "Linkers to enable"
@@ -95,6 +101,7 @@
     prompt "gold"
     depends on BINUTILS_HAS_GOLD
     depends on BINUTILS_GOLD_SUPPORTS_ARCH
+    depends on ! BINUTILS_FORCE_LD_BFD
     depends on EXPERIMENTAL
     select BINUTILS_GOLD_INSTALLED
     help
@@ -125,6 +132,7 @@
     depends on EXPERIMENTAL
     select BINUTILS_GOLD_INSTALLED
     select BINUTILS_LINKER_BOTH
+    select BINUTILS_LD_WRAPPER if BINUTILS_FORCE_LD_BFD
     help
       Both the historical ld and the new gold linkers will be
       installed, with gold being the default linker used.
diff -r 1752ade7dc52 -r 369664fd7cba scripts/build/binutils/binutils.sh
--- a/scripts/build/binutils/binutils.sh	Tue Apr 05 23:34:16 2011 +0200
+++ b/scripts/build/binutils/binutils.sh	Tue Apr 05 01:02:28 2011 +0200
@@ -96,6 +96,11 @@
         chmod +x "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ld"
         cp -a "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ld"    \
               "${CT_PREFIX_DIR}/${CT_TARGET}/bin/ld"
+
+        # If needed, force using ld.bfd during the toolchain build
+        if [ "${CT_BINUTILS_FORCE_LD_BFD}" = "y" ]; then
+            export CTNG_LD_IS=bfd
+        fi
     fi
 
     # Make those new tools available to the core C compilers to come.