gcc: Fix inconsistent noexcept specifier for valarray in libstdc++

Backport of gcc upstream commit 2b2d97fc545635a0f6aa9c9ee3b017394bc494bf
to gcc release 9.5.0. This fix is available to all release-branches
except releases/gcc-9 because upstream do not support gcc-9 now.

(From OE-Core rev: 9779b66162a014f26594bdde43afdc4332617240)

Signed-off-by: Virendra Thakur <virendrak@kpit.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 45 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-9.5.inc b/meta/recipes-devtools/gcc/gcc-9.5.inc
index 6a0a892b10..ec28246bf3 100644
--- a/meta/recipes-devtools/gcc/gcc-9.5.inc
+++ b/meta/recipes-devtools/gcc/gcc-9.5.inc
@@ -69,6 +69,7 @@ SRC_URI = "\
            file://0037-CVE-2019-14250-Check-zero-value-in-simple_object_elf.patch \
            file://0038-gentypes-genmodes-Do-not-use-__LINE__-for-maintainin.patch \
            file://0039-process_alt_operands-Don-t-match-user-defined-regs-o.patch \
+           file://0002-libstdc-Fix-inconsistent-noexcept-specific-for-valar.patch \
 "
 S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/gcc-${PV}"
 SRC_URI[sha256sum] = "27769f64ef1d4cd5e2be8682c0c93f9887983e6cfd1a927ce5a0a2915a95cf8f"
diff --git a/meta/recipes-devtools/gcc/gcc-9.5/0002-libstdc-Fix-inconsistent-noexcept-specific-for-valar.patch b/meta/recipes-devtools/gcc/gcc-9.5/0002-libstdc-Fix-inconsistent-noexcept-specific-for-valar.patch
new file mode 100644
index 0000000000..506064bfc2
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.5/0002-libstdc-Fix-inconsistent-noexcept-specific-for-valar.patch
@@ -0,0 +1,44 @@
+From 60d966708d7cf105dccf128d2b7a38b0b2580a1a Mon Sep 17 00:00:00 2001
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Fri, 5 Nov 2021 21:42:20 +0000
+Subject: [PATCH] libstdc++: Fix inconsistent noexcept-specific for valarray
+ begin/end
+
+These declarations should be noexcept after I added it to the
+definitions in <valarray>.
+
+libstdc++-v3/ChangeLog:
+
+        * include/bits/range_access.h (begin(valarray), end(valarray)):
+        Add noexcept.
+
+(cherry picked from commit 2b2d97fc545635a0f6aa9c9ee3b017394bc494bf)
+
+Upstream-Status: Backport [https://github.com/hkaelber/gcc/commit/2b2d97fc545635a0f6aa9c9ee3b017394bc494bf]
+Signed-off-by: Virendra Thakur <virendrak@kpit.com>
+
+---
+ libstdc++-v3/include/bits/range_access.h | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/libstdc++-v3/include/bits/range_access.h b/libstdc++-v3/include/bits/range_access.h
+index 3d99ea92027..4736e75fda1 100644
+--- a/libstdc++-v3/include/bits/range_access.h
++++ b/libstdc++-v3/include/bits/range_access.h
+@@ -101,10 +101,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+   template<typename _Tp> class valarray;
+   // These overloads must be declared for cbegin and cend to use them.
+-  template<typename _Tp> _Tp* begin(valarray<_Tp>&);
+-  template<typename _Tp> const _Tp* begin(const valarray<_Tp>&);
+-  template<typename _Tp> _Tp* end(valarray<_Tp>&);
+-  template<typename _Tp> const _Tp* end(const valarray<_Tp>&);
++  template<typename _Tp> _Tp* begin(valarray<_Tp>&) noexcept;
++  template<typename _Tp> const _Tp* begin(const valarray<_Tp>&) noexcept;
++  template<typename _Tp> _Tp* end(valarray<_Tp>&) noexcept;
++  template<typename _Tp> const _Tp* end(const valarray<_Tp>&) noexcept;
+ 
+   /**
+    *  @brief  Return an iterator pointing to the first element of
+-- 
+2.25.1
\ No newline at end of file