[PATCH] gcc: Fix compile of gcc plugins

[Andrei Gherzan <andrei@gherzan.com>]

From: Andrei Gherzan <andrei.gherzan@huawei.com>

Without this, compiling gcc plugins will fail with an error similar to:
[...]
fatal error: ./config/i386/linux64.h: No such file or directory
[...]

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>
---
 meta/recipes-devtools/gcc/gcc-11.2.inc        |  1 +
 .../0001-Fix-install-path-of-linux64.h.patch  | 33 +++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 meta/recipes-devtools/gcc/gcc/0001-Fix-install-path-of-linux64.h.patch

diff --git a/meta/recipes-devtools/gcc/gcc-11.2.inc b/meta/recipes-devtools/gcc/gcc-11.2.inc
index e352c958de..f07a5be507 100644
--- a/meta/recipes-devtools/gcc/gcc-11.2.inc
+++ b/meta/recipes-devtools/gcc/gcc-11.2.inc
@@ -59,6 +59,7 @@ SRC_URI = "\
            file://0037-libatomic-Do-not-enforce-march-on-aarch64.patch \
            file://0041-apply-debug-prefix-maps-before-checksumming-DIEs.patch \
            file://0006-If-CXXFLAGS-contains-something-unsupported-by-the-bu.patch \
+           file://0001-Fix-install-path-of-linux64.h.patch \
            file://0001-CVE-2021-35465.patch \
            file://0002-CVE-2021-35465.patch \
            file://0003-CVE-2021-35465.patch \
diff --git a/meta/recipes-devtools/gcc/gcc/0001-Fix-install-path-of-linux64.h.patch b/meta/recipes-devtools/gcc/gcc/0001-Fix-install-path-of-linux64.h.patch
new file mode 100644
index 0000000000..55f78eaa0b
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc/0001-Fix-install-path-of-linux64.h.patch
@@ -0,0 +1,33 @@
+From 58211c7ceb0510b2a11a7f1da3c7fa968c658749 Mon Sep 17 00:00:00 2001
+From: Andrei Gherzan <andrei.gherzan@huawei.com>
+Date: Wed, 22 Dec 2021 12:49:25 +0100
+Subject: [PATCH] Fix install path of linux64.h
+
+We add linux64.h to tm includes[1] as a relative path to B. This patch
+adapts the install path of linux64.h to match the include in tm.h.
+
+[1] 0016-Use-the-multilib-config-files-from-B-instead-of-usin.patch
+
+Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>
+
+Upstream-Status: Inappropriate [configuration]
+---
+ gcc/Makefile.in | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/Makefile.in b/gcc/Makefile.in
+index 9b17d120a..d175ec4e3 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -3693,6 +3693,8 @@ install-plugin: installdirs lang.install-plugin s-header-vars install-gengtype
+ 	  "$(srcdir)"/config/* | "$(srcdir)"/common/config/* \
+ 	  | "$(srcdir)"/c-family/* | "$(srcdir)"/*.def ) \
+ 	    base=`echo "$$path" | sed -e "s|$$srcdirstrip/||"`;; \
++	  ./* ) \
++	    base=`dirname $$path`;;\
+ 	  *) base=`basename $$path` ;; \
+ 	  esac; \
+ 	  dest=$(plugin_includedir)/$$base; \
+-- 
+2.25.1
+
-- 
2.25.1