gcc: replace gdb helper install revert with the upstream fix

A change in the gcc-11 branch broke installation of the GDB helper on
bare-metal targets without a shared libstdc++.so.  This now fixed
upstream so replacce the revert with a backport of the patch.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 58 insertions, 77 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-11.1.inc b/meta/recipes-devtools/gcc/gcc-11.1.inc
index 69e4c8bacc..c21242af58 100644
--- a/meta/recipes-devtools/gcc/gcc-11.1.inc
+++ b/meta/recipes-devtools/gcc/gcc-11.1.inc
@@ -68,7 +68,7 @@ SRC_URI = "\
            file://0035-gentypes-genmodes-Do-not-use-__LINE__-for-maintainin.patch \
            file://0036-mingw32-Enable-operation_not_supported.patch \
            file://0037-libatomic-Do-not-enforce-march-on-aarch64.patch \
-           file://0001-Revert-libstdc-Install-libstdc-gdb.py-more-robustly-.patch \
+           file://0001-libstdc-Fix-installation-of-python-hooks-PR-99453.patch \
            file://0038-arc-Update-64bit-move-split-patterns.patch \
            file://0039-arc-Fix-u-maddhisi-patterns.patch \
            file://0040-arc-Update-doloop_end-patterns.patch \
diff --git a/meta/recipes-devtools/gcc/gcc/0001-Revert-libstdc-Install-libstdc-gdb.py-more-robustly-.patch b/meta/recipes-devtools/gcc/gcc/0001-Revert-libstdc-Install-libstdc-gdb.py-more-robustly-.patch
deleted file mode 100644
index a3e31e4f9d..0000000000
--- a/meta/recipes-devtools/gcc/gcc/0001-Revert-libstdc-Install-libstdc-gdb.py-more-robustly-.patch
+++ /dev/null
@@ -1,76 +0,0 @@
-This change breaks installation on baremetal targets, so whilst the cause is
-investigated revert the commit.
-
-Upstream-Status: Inappropriate
-Signed-off-by: Ross Burton <ross.burton@arm.com>
-
-From 8ec52bd0ba2141ef0bcc6f93e26a23d662b40f78 Mon Sep 17 00:00:00 2001
-From: Ross Burton <ross.burton@arm.com>
-Date: Wed, 26 May 2021 19:54:29 +0100
-Subject: [PATCH] Revert "libstdc++: Install libstdc++*-gdb.py more robustly
- [PR 99453]"
-
-This reverts commit dbb87d6a9c37c8eca80d77782717a8144515c16d.
----
- libstdc++-v3/python/Makefile.am | 20 ++++++++++++++++----
- libstdc++-v3/python/Makefile.in | 14 ++++++++++++--
- 2 files changed, 28 insertions(+), 6 deletions(-)
-
-diff --git a/libstdc++-v3/python/Makefile.am b/libstdc++-v3/python/Makefile.am
-index 0c2b207b86e..01517a2a522 100644
---- a/libstdc++-v3/python/Makefile.am
-+++ b/libstdc++-v3/python/Makefile.am
-@@ -44,9 +44,21 @@ gdb.py: hook.in Makefile
- install-data-local: gdb.py
- 	@$(mkdir_p) $(DESTDIR)$(toolexeclibdir)
- ## We want to install gdb.py as SOMETHING-gdb.py.  SOMETHING is the
--## full name of the final library.  We use the libtool .la file to get
--## the correct name.
--	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
--	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
-+## full name of the final library.  We want to ignore symlinks, the
-+## .la file, and any previous -gdb.py file.  This is inherently
-+## fragile, but there does not seem to be a better option, because
-+## libtool hides the real names from us.
-+	@here=`pwd`; cd $(DESTDIR)$(toolexeclibdir); \
-+	  for file in libstdc++.*; do \
-+	    case $$file in \
-+	      *-gdb.py) ;; \
-+	      *.la) ;; \
-+	      *) if test -h $$file; then \
-+	           continue; \
-+	         fi; \
-+	         libname=$$file;; \
-+	    esac; \
-+	  done; \
-+	cd $$here; \
- 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
- 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
-diff --git a/libstdc++-v3/python/Makefile.in b/libstdc++-v3/python/Makefile.in
-index 2efe0b96a19..c35dbe55961 100644
---- a/libstdc++-v3/python/Makefile.in
-+++ b/libstdc++-v3/python/Makefile.in
-@@ -607,8 +607,18 @@ gdb.py: hook.in Makefile
- 
- install-data-local: gdb.py
- 	@$(mkdir_p) $(DESTDIR)$(toolexeclibdir)
--	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
--	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
-+	@here=`pwd`; cd $(DESTDIR)$(toolexeclibdir); \
-+	  for file in libstdc++.*; do \
-+	    case $$file in \
-+	      *-gdb.py) ;; \
-+	      *.la) ;; \
-+	      *) if test -h $$file; then \
-+	           continue; \
-+	         fi; \
-+	         libname=$$file;; \
-+	    esac; \
-+	  done; \
-+	cd $$here; \
- 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
- 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
- 
--- 
-2.25.1
-
diff --git a/meta/recipes-devtools/gcc/gcc/0001-libstdc-Fix-installation-of-python-hooks-PR-99453.patch b/meta/recipes-devtools/gcc/gcc/0001-libstdc-Fix-installation-of-python-hooks-PR-99453.patch
new file mode 100644
index 0000000000..d82f533cb4
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc/0001-libstdc-Fix-installation-of-python-hooks-PR-99453.patch
@@ -0,0 +1,57 @@
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+
+From ad4c21f0f59b52357019148ec94d767aa2acd8f2 Mon Sep 17 00:00:00 2001
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Tue, 1 Jun 2021 11:00:16 +0100
+Subject: [PATCH] libstdc++: Fix installation of python hooks [PR 99453]
+
+When no shared library is installed, the new code to determine the name
+of the -gdb.py file yields an empty string. Use the name of the static
+library in that case.
+
+libstdc++-v3/ChangeLog:
+
+	PR libstdc++/99453
+	* python/Makefile.am: Use archive name for printer hook if no
+	dynamic library name is available.
+	* python/Makefile.in: Regenerate.
+
+(cherry picked from commit 9f7bc160b4a0f27dce248d1226e3ae7104b0e67b)
+---
+ libstdc++-v3/python/Makefile.am | 4 ++++
+ libstdc++-v3/python/Makefile.in | 4 ++++
+ 2 files changed, 8 insertions(+)
+
+diff --git a/libstdc++-v3/python/Makefile.am b/libstdc++-v3/python/Makefile.am
+index 0c2b207b86e..8efefa5725c 100644
+--- a/libstdc++-v3/python/Makefile.am
++++ b/libstdc++-v3/python/Makefile.am
+@@ -48,5 +48,9 @@ install-data-local: gdb.py
+ ## the correct name.
+ 	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
+ 	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
++	if [ -z "$$libname" ]; then \
++	  libname=`sed -ne "/^old_library=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
++		  $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
++	fi; \
+ 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
+ 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
+diff --git a/libstdc++-v3/python/Makefile.in b/libstdc++-v3/python/Makefile.in
+index 2efe0b96a19..9904a9197de 100644
+--- a/libstdc++-v3/python/Makefile.in
++++ b/libstdc++-v3/python/Makefile.in
+@@ -609,6 +609,10 @@ install-data-local: gdb.py
+ 	@$(mkdir_p) $(DESTDIR)$(toolexeclibdir)
+ 	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
+ 	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
++	if [ -z "$$libname" ]; then \
++	  libname=`sed -ne "/^old_library=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
++		  $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
++	fi; \
+ 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
+ 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
+ 
+-- 
+2.25.1
+