3 files changed, 136 insertions, 0 deletions
diff --git a/meta/recipes-devtools/pseudo/files/build-oldlibc b/meta/recipes-devtools/pseudo/files/build-oldlibc
new file mode 100755
index 0000000000..85c438de4e
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/files/build-oldlibc
@@ -0,0 +1,20 @@
+#!/bin/sh
+#
+# Script to re-generate pseudo-prebuilt-2.33.tar.xz
+#
+# Copyright (C) 2021 Richard Purdie
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+for i in x86_64 aarch64 i686; do
+    if [ ! -e $i-nativesdk-libc.tar.xz ]; then
+        wget http://downloads.yoctoproject.org/releases/uninative/3.2/$i-nativesdk-libc.tar.xz
+    fi
+    tar -xf $i-nativesdk-libc.tar.xz --wildcards \*/lib/libpthread\* \*/lib/libdl\*
+    cd $i-linux/lib
+    ln -s libdl.so.2 libdl.so
+    ln -s libpthread.so.0 libpthread.so
+    cd ../..
+done
+tar -cJf pseudo-prebuilt-2.33.tar.xz *-linux
+\ No newline at end of file
diff --git a/meta/recipes-devtools/pseudo/files/glibc238.patch b/meta/recipes-devtools/pseudo/files/glibc238.patch
new file mode 100644
index 0000000000..da4b8caee3
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/files/glibc238.patch
@@ -0,0 +1,59 @@
+glibc 2.38 would include  __isoc23_strtol and similar symbols. This is trggerd by
+_GNU_SOURCE but we have to set that for other definitions. Therefore play with defines
+to turn this off within pseudo_wrappers.c. Elsewhere we can switch to _DEFAULT_SOURCE
+rather than _GNU_SOURCE.
+
+Upstream-Status: Pending
+
+Index: git/pseudo_wrappers.c
+===================================================================
+--- git.orig/pseudo_wrappers.c
++++ git/pseudo_wrappers.c
+@@ -6,6 +6,15 @@
+  * SPDX-License-Identifier: LGPL-2.1-only
+  *
+  */
++/* glibc 2.38 would include  __isoc23_strtol and similar symbols. This is trggerd by
++ * _GNU_SOURCE but we have to set that for other definitions. Therefore play with defines
++ * to turn this off.
++ */
++#include <features.h>
++#undef __GLIBC_USE_ISOC2X
++#undef __GLIBC_USE_C2X_STRTOL
++#define __GLIBC_USE_C2X_STRTOL 0
++
+ #include <assert.h>
+ #include <stdlib.h>
+ #include <limits.h>
+Index: git/pseudo_util.c
+===================================================================
+--- git.orig/pseudo_util.c
++++ git/pseudo_util.c
+@@ -8,6 +8,14 @@
+  */
+ /* we need access to RTLD_NEXT for a horrible workaround */
+ #define _GNU_SOURCE
++/* glibc 2.38 would include  __isoc23_strtol and similar symbols. This is trggerd by
++ * _GNU_SOURCE but we have to set that for other definitions. Therefore play with defines
++ * to turn this off.
++ */
++#include <features.h>
++#undef __GLIBC_USE_ISOC2X
++#undef __GLIBC_USE_C2X_STRTOL
++#define __GLIBC_USE_C2X_STRTOL 0
+ 
+ #include <ctype.h>
+ #include <errno.h>
+Index: git/pseudo_client.c
+===================================================================
+--- git.orig/pseudo_client.c
++++ git/pseudo_client.c
+@@ -6,7 +6,7 @@
+  * SPDX-License-Identifier: LGPL-2.1-only
+  *
+  */
+-#define _GNU_SOURCE
++#define _DEFAULT_SOURCE
+ 
+ #include <stdio.h>
+ #include <signal.h>
diff --git a/meta/recipes-devtools/pseudo/files/older-glibc-symbols.patch b/meta/recipes-devtools/pseudo/files/older-glibc-symbols.patch
new file mode 100644
index 0000000000..c453b5f735
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/files/older-glibc-symbols.patch
@@ -0,0 +1,57 @@
+If we link against a newer glibc 2.34 and then try and our LD_PRELOAD is run against a
+binary on a host with an older libc, we see symbol errors since in glibc 2.34, pthread 
+and dl are merged into libc itself.
+
+We need to use the older form of linking so use glibc binaries from an older release
+to force this. We only use minimal symbols from these anyway.
+
+pthread_atfork is problematic, particularly on arm so use the internal glibc routine
+it maps too. This was always present in the main libc from 2.3.2 onwards.
+
+Yes this is horrible. Better solutions welcome.
+
+There is more info in the bug: [YOCTO #14521]
+
+Upstream-Status: Inappropriate [this patch is native and nativesdk]
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Tweak library search order, make prebuilt lib ahead of recipe lib
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ Makefile.in       | 2 +-
+ pseudo_wrappers.c | 5 ++++-
+ 2 files changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -120,7 +120,7 @@ $(PSEUDODB): pseudodb.o $(SHOBJS) $(DBOBJS) pseudo_ipc.o | $(BIN)
+ libpseudo: $(LIBPSEUDO)
+ 
+ $(LIBPSEUDO): $(WRAPOBJS) pseudo_client.o pseudo_ipc.o $(SHOBJS) | $(LIB)
+-	$(CC) $(CFLAGS) $(CFLAGS_PSEUDO) -shared -o $(LIBPSEUDO) \
++	$(CC) $(CFLAGS)  -Lprebuilt/$(shell uname -m)-linux/lib/ $(CFLAGS_PSEUDO) -shared -o $(LIBPSEUDO) \
+ 		pseudo_client.o pseudo_ipc.o \
+ 		$(WRAPOBJS) $(SHOBJS) $(LDFLAGS) $(CLIENT_LDFLAGS)
+ 
+diff --git a/pseudo_wrappers.c b/pseudo_wrappers.c
+--- a/pseudo_wrappers.c
++++ b/pseudo_wrappers.c
+@@ -100,10 +100,13 @@ static void libpseudo_atfork_child(void)
+ 	pseudo_mutex_holder = 0;
+ }
+ 
++extern void *__dso_handle;
++extern int __register_atfork (void (*) (void), void (*) (void), void (*) (void), void *);
++
+ static void
+ _libpseudo_init(void) {
+ 	if (!_libpseudo_initted)
+-		pthread_atfork(NULL, NULL, libpseudo_atfork_child);
++		__register_atfork (NULL, NULL, libpseudo_atfork_child, &__dso_handle == NULL ? NULL : __dso_handle);
+ 
+ 	pseudo_getlock();
+ 	pseudo_antimagic();
+-- 
+2.27.0
+