1 files changed, 125 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-6.4/0045-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch b/meta/recipes-devtools/gcc/gcc-6.4/0045-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch
new file mode 100644
index 0000000000..c62b727d6e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/0045-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch
@@ -0,0 +1,125 @@
+From 5a47d404ea29e2547269e3ddf38754462d93f903 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Apr 2016 20:03:28 +0000
+Subject: [PATCH 45/46] libgcc: Add knob to use ldbl-128 on ppc
+
+musl does not support ldbl 128 so we can not assume
+that linux as a whole supports ldbl-128 bits, instead
+act upon configure option passed to gcc and assume no
+on musl and yes otherwise if no option is passed since
+default behaviour is to assume ldbl128 it does not
+change the defaults
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ libgcc/Makefile.in           |  1 +
+ libgcc/config/rs6000/t-linux |  5 ++++-
+ libgcc/configure             | 18 ++++++++++++++++++
+ libgcc/configure.ac          | 12 ++++++++++++
+ 4 files changed, 35 insertions(+), 1 deletion(-)
+ mode change 100644 => 100755 libgcc/configure
+
+diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
+index f09b39b..296cf0f 100644
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -43,6 +43,7 @@ enable_vtable_verify = @enable_vtable_verify@
+ enable_decimal_float = @enable_decimal_float@
+ fixed_point = @fixed_point@
+ with_aix_soname = @with_aix_soname@
++with_ldbl128 = @with_ldbl128@
+ 
+ host_noncanonical = @host_noncanonical@
+ real_host_noncanonical = @real_host_noncanonical@
+diff --git a/libgcc/config/rs6000/t-linux b/libgcc/config/rs6000/t-linux
+index 4f6d4c4..c50dd94 100644
+--- a/libgcc/config/rs6000/t-linux
++++ b/libgcc/config/rs6000/t-linux
+@@ -1,3 +1,6 @@
+ SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-128 -mno-minimal-toc
++ifeq ($(with_ldbl128),yes)
++HOST_LIBGCC2_CFLAGS += -mlong-double-128
++endif
++HOST_LIBGCC2_CFLAGS += -mno-minimal-toc
+diff --git a/libgcc/configure b/libgcc/configure
+old mode 100644
+new mode 100755
+index e7d6c75..e9a9019
+--- a/libgcc/configure
++++ b/libgcc/configure
+@@ -614,6 +614,7 @@ build_vendor
+ build_cpu
+ build
+ with_aix_soname
++with_ldbl128
+ enable_vtable_verify
+ enable_shared
+ libgcc_topdir
+@@ -663,6 +664,7 @@ with_cross_host
+ with_ld
+ enable_shared
+ enable_vtable_verify
++with_long_double_128
+ with_aix_soname
+ enable_version_specific_runtime_libs
+ with_slibdir
+@@ -1319,6 +1321,7 @@ Optional Packages:
+   --with-target-subdir=SUBDIR      Configuring in a subdirectory for target
+   --with-cross-host=HOST           Configuring with a cross compiler
+   --with-ld               arrange to use the specified ld (full pathname)
++  --with-long-double-128  use 128-bit long double by default
+   --with-aix-soname=aix|svr4|both
+                           shared library versioning (aka "SONAME") variant to
+                           provide on AIX
+@@ -2201,6 +2204,21 @@ fi
+ 
+ 
+ 
++# Check whether --with-long-double-128 was given.
++if test "${with_long_double_128+set}" = set; then :
++  withval=$with_long_double_128; with_ldbl128="$with_long_double_128"
++else
++  case "${host}" in
++ power*-*-musl*)
++   with_ldbl128="no";;
++ *) with_ldbl128="yes";;
++ esac
++
++fi
++
++
++
++
+ # Check whether --with-aix-soname was given.
+ if test "${with_aix_soname+set}" = set; then :
+   withval=$with_aix_soname; case "${host}:${enable_shared}" in
+diff --git a/libgcc/configure.ac b/libgcc/configure.ac
+index 269997f..81dc3ba 100644
+--- a/libgcc/configure.ac
++++ b/libgcc/configure.ac
+@@ -77,6 +77,18 @@ AC_ARG_ENABLE(vtable-verify,
+ [enable_vtable_verify=no])
+ AC_SUBST(enable_vtable_verify)
+ 
++AC_ARG_WITH(long-double-128,
++[AS_HELP_STRING([--with-long-double-128],
++    [use 128-bit long double by default])],
++      with_ldbl128="$with_long_double_128",
++[case "${host}" in
++ power*-*-musl*)
++   with_ldbl128="no";;
++ *) with_ldbl128="yes";;
++ esac
++])
++AC_SUBST(with_ldbl128)
++
+ AC_ARG_WITH(aix-soname,
+ [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+     [shared library versioning (aka "SONAME") variant to provide on AIX])],
+-- 
+2.8.2
+