initial buildroot for linux 5.15

package/prelink-cross/0001-src-rtld-dl-tls.c-Fix-TLS-offsets-computation-for-s3.patch

@@ -0,0 +1,43 @@
+From 4064f77d2f550762cbf220fec7c26a8ce4219ea4 Mon Sep 17 00:00:00 2001
+From: Alexander Egorenkov <egorenar@linux.ibm.com>
+Date: Sun, 8 Aug 2021 11:19:52 +0200
+Subject: [PATCH] src/rtld/dl-tls.c: Fix TLS offsets computation for s390 arch
+
+rtld_determine_tlsoffsets() didn't handle s390 arch properly by falling
+back to the default case. If TLS_TCB_AT_TP is 1, then set offset to -1.
+
+From glibc's sysdeps/s390/nptl/tls.h:
+-------------------------------------
+/* The TCB can have any size and the memory following the address the
+   thread pointer points to is unspecified.  Allocate the TCB there.  */
+define TLS_TCB_AT_TP	1
+define TLS_DTV_AT_TP	0
+
+This lead to the following error:
+---------------------------------
+prelink-rtld: error while loading shared libraries: /lib64/libc.so.6: cannot handle TLS data
+
+Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
+---
+ src/rtld/dl-tls.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/rtld/dl-tls.c b/src/rtld/dl-tls.c
+index 280cee45f950..29422dcfd25e 100644
+--- a/src/rtld/dl-tls.c
++++ b/src/rtld/dl-tls.c
+@@ -143,6 +143,11 @@ rtld_determine_tlsoffsets (int e_machine, struct r_scope_elem *search_list)
+       tls_tcb_size = 0;
+       break;
+ 
++    case EM_S390:
++      tls_tcb_at_tp = 1;
++      tls_tcb_size = -1;
++      break;
++
+     default:
+       /* Hope there's no TLS!  */
+       for (i = 0; i < search_list->r_nlist; i++)
+-- 
+2.31.1
+

package/prelink-cross/prelink-cross.hash

@@ -0,0 +1,3 @@
+# Locally computed
+sha256  d7c95e81993edead813accf417f6d5b05bcc84eea9ee2d711b9505ffb4f2865b  prelink-cross-a853a5d715d84eec93aa68e8f2df26b7d860f5b2-br1.tar.gz
+sha256  b8a2f73f743dc1a51aff23f1aacbca4b868564db52496fa3c0caba755bfd1eaf  COPYING

package/prelink-cross/prelink-cross.mk

@@ -0,0 +1,16 @@
+################################################################################
+#
+# host-prelink-cross
+#
+################################################################################
+
+PRELINK_CROSS_VERSION = a853a5d715d84eec93aa68e8f2df26b7d860f5b2
+PRELINK_CROSS_SITE = https://git.yoctoproject.org/git/prelink-cross
+PRELINK_CROSS_SITE_METHOD = git
+PRELINK_CROSS_LICENSE = GPL-2.0+
+PRELINK_CROSS_LICENSE_FILES = COPYING
+# Sources from git, no configure script present
+PRELINK_CROSS_AUTORECONF = YES
+HOST_PRELINK_CROSS_DEPENDENCIES = host-elfutils host-libiberty
+
+$(eval $(host-autotools-package))