Temporary workaround for ppc64 gcc compilation bug.

Resolves: RHEL-49348

bin.ppc64.gcc.patch

@@ -0,0 +1,22 @@
+--- binutils.orig/ld/ldlang.c	2024-07-30 16:10:24.931862075 +0100
++++ binutils-2.41/ld/ldlang.c	2024-07-30 19:11:58.741929934 +0100
+@@ -7940,6 +7940,19 @@ lang_list_remove_tail (lang_statement_li
+ {
+   union lang_statement_union **savetail;
+   /* Check that ORIGLIST really is an earlier state of DESTLIST.  */
++
++  if (getenv ("LD_DEBUG_NEVER") != NULL)
++    {
++      /* FIXME: RHEL-49348: For some reason building this function for the
++	 PowerPC architecture on RHEL-10 is resulting in a linker that
++	 triggers the ASSERT below - because the origlist pointer is
++	 corrupt.  These fprintf statements, even if they will never be
++	 used, are enough to cause the compiler to build the function
++	 correctly, thus avoiding the problem.  */
++      fprintf (stderr, "origlist %p destlist %p\n", origlist, destlist);
++      fprintf (stderr, "heads: %p %p\n", origlist->head, destlist->head);
++    }
++
+   ASSERT (origlist->head == destlist->head);
+   savetail = origlist->tail;
+   origlist->head = *(savetail);

binutils.spec

@@ -2,7 +2,7 @@
 Summary: A GNU collection of binary utilities
 Name: binutils%{?_with_debug:-debug}
 Version: 2.41
-Release: 46%{?dist}
+Release: 47%{?dist}
 License: GPL-3.0-or-later AND (GPL-3.0-or-later WITH Bison-exception-2.2) AND (LGPL-2.0-or-later WITH GCC-exception-2.0) AND BSD-3-Clause AND GFDL-1.3-or-later AND GPL-2.0-or-later AND LGPL-2.1-or-later AND LGPL-2.0-or-later
 URL: https://sourceware.org/binutils
 
@@ -43,7 +43,10 @@ URL: https://sourceware.org/binutils
 
 # Enable support for GCC LTO compilation.
 # Disable if it is necessary to work around bugs in LTO.
-%define enable_lto 1
+# FIXME: Temporarily disabled because of RHEL-49348.  The linker in the current
+# RHEL-10 buildroot is suffering from the compilation bug.  The workaround is
+# to avoid using LTO...
+%define enable_lto 0
 
 # Enable support for generating new dtags in the linker
 # Disable if it is necessary to use RPATH instead.
@@ -347,6 +350,11 @@ Patch41: binutils-aarch64-RELR.patch
 # Lifetime: Fixed in 2.43
 Patch42: binutils-Intel-APX-part-1-supplimental.patch
 
+# Purpose:  Workaround for an unresolved bug in ppc gcc
+#           which generates bad code in the linker.  cf RHEL-49348
+# Lifetime: TEMPORARY
+Patch88: bin.ppc64.gcc.patch
+
 # Purpose:  Suppress the assembler's comment test as it fails - intermitantly - for RHEL-10
 # Lifetime: TEMPORARY
 # Patch98: binutils-suppress-gas-comment-test.patch
@@ -1384,6 +1392,9 @@ exit 0
 
 #----------------------------------------------------------------------------
 %changelog
+* Tue Jul 30 2024 Nick Clifton  <nickc@redhat.com> - 2.41-47
+- Temporary workaround for ppc64 gcc compilation bug.  (RHEL-49348)
+
 * Mon Jul 08 2024 Nick Clifton  <nickc@redhat.com> - 2.41-46
 - Import fix for AArch64 DT_RELR support (PR 31924).
 - More fixes for Intel's APX (part 1) extensions.  (RHEL-44713)