gcc: Enable SPE & AltiVec generation on powepc*linux target.

[ADT bug #5761] -- https://bugzilla.yoctoproject.org/show_bug.cgi?id=5761

Also this patch adds symlinks to libgcc such that a GCC configured
by passing the target parameter without LIBCEXTENSION and ABIEXTENSION
specifiers to find the correct startup files from a libgcc configured
with these variables.

(From OE-Core rev: 97f2a81d6796ddaf7bbaab86c2ab9039673c732c)

Signed-off-by: Alexandru-Cezar Sardan <alexandru.sardan@freescale.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0049-Enable-SPE-AltiVec-generation-on-powepc-linux-target.patch b/meta/recipes-devtools/gcc/gcc-4.8/0049-Enable-SPE-AltiVec-generation-on-powepc-linux-target.patch
new file mode 100644
index 0000000000..b98f8ff01d
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.8/0049-Enable-SPE-AltiVec-generation-on-powepc-linux-target.patch
@@ -0,0 +1,42 @@
+From 9e0e19eac2562f73858602fe26e2044eb8b20c47 Mon Sep 17 00:00:00 2001
+From: Alexandru-Cezar Sardan <alexandru.sardan@freescale.com>
+Date: Wed, 5 Feb 2014 16:52:31 +0200
+Subject: [PATCH] Enable SPE & AltiVec generation on powepc*linux target
+
+When is configured with --target=powerpc-linux, the resulting GCC will 
+not be able to generate code for SPE targets (e500v1/v2).
+GCC configured with --target=powerpc-linuxspe will not be able to
+generate AltiVec instructions (for e6500).
+This patch modifies the configured file such that SPE or AltiVec code
+can be generated when gcc is configured with --target=powerpc-linux.
+The ABI and speciffic instructions can be selected through the
+"-mabi=spe or -mabi=altivec" and the "-mspe or -maltivec" parameters.
+
+Upstream-Status: Inappropriate [configuration]
+
+Signed-off-by: Alexandru-Cezar Sardan <alexandru.sardan@freescale.com>
+---
+ gcc/config.gcc |    7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index cb7a94e..d392c2b 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2068,7 +2068,12 @@ powerpc-*-rtems*)
+        tmake_file="rs6000/t-fprules rs6000/t-rtems t-rtems rs6000/t-ppccomm"
+        ;;
+ powerpc*-*-linux*)
+-       tm_file="${tm_file} dbxelf.h elfos.h freebsd-spec.h rs6000/sysv4.h"
++       case ${target} in
++           powerpc*-*-linux*spe* | powerpc*-*-linux*altivec*)
++               tm_file="${tm_file} dbxelf.h elfos.h freebsd-spec.h rs6000/sysv4.h" ;;
++           *)
++               tm_file="${tm_file} dbxelf.h elfos.h freebsd-spec.h rs6000/sysv4.h rs6000/linuxaltivec.h rs6000/linuxspe.h rs6000/e500.h" ;;
++       esac
+        extra_options="${extra_options} rs6000/sysv4.opt"
+        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
+        case ${target} in
+-- 
+1.7.9.5
+