gcc-4.9/5.3: Ignore -fdebug-prefix-map in producer string

Backport from upstream master. The discussion detail:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69821

Compile without this fix:
objdump -g packages-split/lib32-glibc-dev/usr/lib/gcrt1.o
...
|    <5f>   DW_AT_producer    : (indirect string, offset: 0x1b): GNU C99 5.3.0
-m32-march=core2 -mtune=core2 -msse3 -mfpmath=sse -mpreferred-stack-boundary=4
-g -O2 -std=gnu99 -fgnu89-inline -fdebug-prefix-map=/buildarea/raid0/hjia/buil
d-20160127-yocto-buildpath-2/tmp/sysroots/lib32-qemux86-64=
-feliminate-unused-debug-types -fmerge-all-constants -frounding-math
-ftls-model=initial-exec
...

Compile with this fix:
objdump -g packages-split/lib32-glibc-dev/usr/lib/gcrt1.o
...
|    <5f>   DW_AT_producer    : (indirect string, offset: 0xa1): GNU C99 5.3.0
-m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -mpreferred-stack-boundary=4
-g -O2 -std=gnu99 -fgnu89-inline -feliminate-unused-debug-types -fmerge-all-constants
-frounding-math -ftls-model=initial-exec
...

[YOCTO #7058]

(From OE-Core rev: a0d444a2e3e1b6b095f30b7fe1c9cfd8bce5a845)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-4.9.inc

@@ -86,6 +86,7 @@ SRC_URI = "\
     file://0068-musl-dynamic-linker.patch \
     file://0069-musl-no-fixincludes.patch \
     file://0070-libstdc-musl.patch \
+    file://0071-Ignore-fdebug-prefix-map-in-producer-string-by-Danie.patch \
 "
 SRC_URI[md5sum] = "6f831b4d251872736e8e9cc09746f327"
 SRC_URI[sha256sum] = "2332b2a5a321b57508b9031354a8503af6fdfb868b8c1748d33028d100a8b67e"

meta/recipes-devtools/gcc/gcc-4.9/0071-Ignore-fdebug-prefix-map-in-producer-string-by-Danie.patch

@@ -0,0 +1,31 @@
+From 32593b38082ea65f4c82159254adf1e0dc2423be Mon Sep 17 00:00:00 2001
+From: bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 16 Feb 2016 03:15:15 -0500
+Subject: [PATCH] Ignore -fdebug-prefix-map in producer string (by Daniel Kahn
+ Gillmor)
+
+* dwarf2out.c (gen_producer_string): Ignore -fdebug-prefix-map.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231835 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ gcc/dwarf2out.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
+index 3614c10..526f114 100644
+--- a/gcc/dwarf2out.c
++++ b/gcc/dwarf2out.c
+@@ -19670,6 +19670,7 @@ gen_producer_string (void)
+       case OPT_fpreprocessed:
+       case OPT_fltrans_output_list_:
+       case OPT_fresolution_:
++      case OPT_fdebug_prefix_map_:
+ 	/* Ignore these.  */
+ 	continue;
+       default:
+-- 
+1.9.1
+

meta/recipes-devtools/gcc/gcc-5.3.inc

@@ -80,6 +80,7 @@ SRC_URI = "\
            file://0048-ssp_nonshared.patch \
            file://0049-Disable-the-weak-reference-logic-in-gthr.h-for-os-ge.patch \
            file://0050-powerpc-pass-secure-plt-to-the-linker.patch \
+           file://0051-Ignore-fdebug-prefix-map-in-producer-string-by-Danie.patch \
           "
 
 BACKPORTS = ""

meta/recipes-devtools/gcc/gcc-5.3/0051-Ignore-fdebug-prefix-map-in-producer-string-by-Danie.patch

@@ -0,0 +1,31 @@
+From 32593b38082ea65f4c82159254adf1e0dc2423be Mon Sep 17 00:00:00 2001
+From: bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 16 Feb 2016 03:15:15 -0500
+Subject: [PATCH] Ignore -fdebug-prefix-map in producer string (by Daniel Kahn
+ Gillmor)
+
+* dwarf2out.c (gen_producer_string): Ignore -fdebug-prefix-map.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231835 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ gcc/dwarf2out.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
+index 3614c10..526f114 100644
+--- a/gcc/dwarf2out.c
++++ b/gcc/dwarf2out.c
+@@ -19670,6 +19670,7 @@ gen_producer_string (void)
+       case OPT_fpreprocessed:
+       case OPT_fltrans_output_list_:
+       case OPT_fresolution_:
++      case OPT_fdebug_prefix_map_:
+ 	/* Ignore these.  */
+ 	continue;
+       default:
+-- 
+1.9.1
+