gcc: upgrade 11.3 -> 12.1

Major gcc release with lot of changes [2]

- Add patch to re-shuffle include of sched.h to fix build on musl
- porting guide to gcc 12 [1]
- Fix version in maintainers entry

[1] https://gcc.gnu.org/gcc-12/porting_to.html
[2] https://gcc.gnu.org/gcc-12/changes.html

(From OE-Core rev: b8878cf0d35cf3d1ac30576d9b9943a7761c011b)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc/0006-cpp-honor-sysroot.patch b/meta/recipes-devtools/gcc/gcc/0006-cpp-honor-sysroot.patch
new file mode 100644
index 0000000000..b08aecc736
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc/0006-cpp-honor-sysroot.patch
@@ -0,0 +1,53 @@
+From abc3b82ab24169277f2090e9df1ceac3573142be Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:22:00 +0400
+Subject: [PATCH] cpp: honor sysroot.
+
+Currently, if the gcc toolchain is relocated and installed from sstate, then you try and compile
+preprocessed source (.i or .ii files), the compiler will try and access the builtin sysroot location
+rather than the --sysroot option specified on the commandline. If access to that directory is
+permission denied (unreadable), gcc will error.
+
+This happens when ccache is in use due to the fact it uses preprocessed source files.
+
+The fix below adds %I to the cpp-output spec macro so the default substitutions for -iprefix,
+-isystem, -isysroot happen and the correct sysroot is used.
+
+[YOCTO #2074]
+
+RP 2012/04/13
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/cp/lang-specs.h | 2 +-
+ gcc/gcc.cc          | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/cp/lang-specs.h b/gcc/cp/lang-specs.h
+index f35c9fab76b..19ddc98ce7f 100644
+--- a/gcc/cp/lang-specs.h
++++ b/gcc/cp/lang-specs.h
+@@ -116,7 +116,7 @@ along with GCC; see the file COPYING3.  If not see
+   {".ii", "@c++-cpp-output", 0, 0, 0},
+   {"@c++-cpp-output",
+       "%{!E:%{!M:%{!MM:"
+-      "  cc1plus -fpreprocessed %i %(cc1_options) %2"
++      "  cc1plus -fpreprocessed %i %I %(cc1_options) %2"
+       "  %{!fsyntax-only:"
+       "    %{fmodule-only:%{!S:-o %g.s%V}}"
+       "    %{!fmodule-only:%{!fmodule-header*:%(invoke_as)}}}"
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index ce161d3c853..aa4cf92fb78 100644
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -1476,7 +1476,7 @@ static const struct compiler default_compilers[] =
+                                           %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
+   {".i", "@cpp-output", 0, 0, 0},
+   {"@cpp-output",
+-   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
++   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %I %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {".s", "@assembler", 0, 0, 0},
+   {"@assembler",
+    "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},