gcc-target 5.1: fix for libcc1

Fixed:
* gcc 5 introduces a plugin libcc1.so, which is used by gdb, the target
gcc didn't build it in the past because gcc_cv_objdump is null, and
the error was:
gcc-5.2.0/libcc1/configure: line 14531: -T: command not found

This only happens for tar gcc as the code shows:
  if test x$build = x$host; then
    export_sym_check="objdump${exeext} -T"
  elif test x$host = x$target; then
    export_sym_check="$gcc_cv_objdump -T"
  else
    export_sym_check=
  fi

* Install libcc1.so and libcc1plugin.so to
  $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version) as lto-plugin did.

* Use sed command to fix bad RPATH iussue.

[YOCTO #7956]

(From OE-Core rev: f6e47aa9b12f9ab61530c40e0343f451699d9077)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-5.2.inc

@@ -70,6 +70,7 @@ SRC_URI = "\
            file://0036-Use-SYSTEMLIBS_DIR-replacement-instead-of-hardcoding.patch \
            file://0037-pr65779.patch \
            file://0038-fix-g++-sysroot.patch \
+           file://0039-libcc1-fix-libcc1-s-install-path-and-rpath.patch \
           "
 
 BACKPORTS = ""

meta/recipes-devtools/gcc/gcc-5.2/0039-libcc1-fix-libcc1-s-install-path-and-rpath.patch

@@ -0,0 +1,51 @@
+From acea0df9997a47f8b8224b6ca1618c8c9dfbe6d5 Mon Sep 17 00:00:00 2001
+From: Robert Yang <liezhi.yang@windriver.com>
+Date: Sun, 5 Jul 2015 20:25:18 -0700
+Subject: [PATCH] libcc1: fix libcc1's install path and rpath
+
+* Install libcc1.so and libcc1plugin.so into
+  $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version), as what we
+  had done to lto-plugin.
+* Fix bad RPATH iussue:
+  gcc-5.2.0: package gcc-plugins contains bad RPATH /patht/to/tmp/sysroots/qemux86-64/usr/lib64/../lib64 in file
+ /path/to/gcc/5.2.0-r0/packages-split/gcc-plugins/usr/lib64/gcc/x86_64-poky-linux/5.2.0/plugin/libcc1plugin.so.0.0.0
+ [rpaths]
+
+Upstream-Status: Inappropriate [OE configuration]
+
+Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
+---
+ libcc1/Makefile.am  |    4 ++--
+ libcc1/Makefile.in  |    4 ++--
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/libcc1/Makefile.am b/libcc1/Makefile.am
+index 7a274b3..db69bea 100644
+--- a/libcc1/Makefile.am
++++ b/libcc1/Makefile.am
+@@ -35,8 +35,8 @@ libiberty = $(if $(wildcard $(libiberty_noasan)),$(Wc)$(libiberty_noasan), \
+ 	    $(Wc)$(libiberty_normal)))
+ libiberty_dep = $(patsubst $(Wc)%,%,$(libiberty))
+ 
+-plugindir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/plugin
+-cc1libdir = $(libdir)/$(libsuffix)
++cc1libdir = $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version)
++plugindir = $(cc1libdir)
+ 
+ if ENABLE_PLUGIN
+ plugin_LTLIBRARIES = libcc1plugin.la
+diff --git a/libcc1/Makefile.in b/libcc1/Makefile.in
+index 1916134..c8995d2 100644
+--- a/libcc1/Makefile.in
++++ b/libcc1/Makefile.in
+@@ -262,8 +262,8 @@ libiberty = $(if $(wildcard $(libiberty_noasan)),$(Wc)$(libiberty_noasan), \
+ 	    $(Wc)$(libiberty_normal)))
+ 
+ libiberty_dep = $(patsubst $(Wc)%,%,$(libiberty))
+-plugindir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/plugin
+-cc1libdir = $(libdir)/$(libsuffix)
++cc1libdir = $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version)
++plugindir = $(cc1libdir)
+ @ENABLE_PLUGIN_TRUE@plugin_LTLIBRARIES = libcc1plugin.la
+ @ENABLE_PLUGIN_TRUE@cc1lib_LTLIBRARIES = libcc1.la
+ BUILT_SOURCES = compiler-name.h

meta/recipes-devtools/gcc/gcc-target.inc

@@ -10,6 +10,11 @@ EXTRA_OECONF_PATHS = "\
 
 EXTRA_OECONF_append_linuxstdbase = " --enable-clocale=gnu"
 
+# libcc1 requres gcc_cv_objdump when cross build, but gcc_cv_objdump is
+# set in subdir gcc, so subdir libcc1 can't use it, export it here to
+# fix the problem.
+export gcc_cv_objdump = "${TARGET_PREFIX}objdump"
+
 EXTRA_OECONF_GCC_FLOAT = "${@get_gcc_float_setting(bb, d)}"
 
 PACKAGES = "\

meta/recipes-devtools/gcc/gcc_5.2.bb

@@ -5,3 +5,9 @@ require gcc-target.inc
 # | gcc-4.8.1-r0/gcc-4.8.1/gcc/cp/decl.c:7438:(.text.unlikely+0x2fa): relocation truncated to fit: R_ARM_THM_CALL against symbol `fancy_abort(char const*, int, char const*)' defined in .glue_7 section in linker stubs
 # | gcc-4.8.1-r0/gcc-4.8.1/gcc/cp/decl.c:7442:(.text.unlikely+0x318): additional relocation overflows omitted from the output
 ARM_INSTRUCTION_SET_armv4 = "arm"
+
+do_configure_prepend() {
+	# Easiest way to stop bad RPATHs getting into the library since we have a
+	# broken libtool here
+	sed -i -e 's/hardcode_into_libs=yes/hardcode_into_libs=no/' ${S}/libcc1/configure
+}