backport change from upstream to fix reported test failures (bz1795896)

libunwind-1.3.1-no-core-mem-check.patch

@@ -0,0 +1,24 @@
+diff -up libunwind-1.3.1/src/x86_64/Ginit.c.no-core-mem-check libunwind-1.3.1/src/x86_64/Ginit.c
+--- libunwind-1.3.1/src/x86_64/Ginit.c.no-core-mem-check	2020-01-31 10:22:29.176612981 -0500
++++ libunwind-1.3.1/src/x86_64/Ginit.c	2020-01-31 10:23:01.454979655 -0500
+@@ -140,11 +140,6 @@ static int mincore_validate (void *addr,
+       return -1;
+     }
+ 
+-  for (i = 0; i < (len + PAGE_SIZE - 1) / PAGE_SIZE; i++)
+-    {
+-      if (!(mvec[i] & 1)) return -1;
+-    }
+-
+   return write_validate (addr);
+ }
+ #endif
+@@ -165,7 +160,7 @@ tdep_init_mem_validate (void)
+   int ret;
+   while ((ret = mincore ((void*)addr, PAGE_SIZE, mvec)) == -1 &&
+          errno == EAGAIN) {}
+-  if (ret == 0 && (mvec[0] & 1))
++  if (ret == 0)
+     {
+       Debug(1, "using mincore to validate memory\n");
+       mem_validate_func = mincore_validate;

libunwind.spec

@@ -4,14 +4,17 @@
 Summary: An unwinding library
 Name: libunwind
 Version: 1.3.1
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: BSD
 URL: http://savannah.nongnu.org/projects/libunwind
-
 Source: http://download-mirror.savannah.gnu.org/releases/libunwind/libunwind-%{version}.tar.gz
 
 #Fedora specific patch
 Patch1: libunwind-arm-default-to-exidx.patch
+# Backport this change from 1.4
+# https://github.com/libunwind/libunwind/commit/05d814b64036b1ea2f0f328b3a985b03559dcf10
+# https://bugzilla.redhat.com/show_bug.cgi?id=1795896
+Patch2: libunwind-1.3.1-no-core-mem-check.patch
 
 ExclusiveArch: %{arm} aarch64 hppa ia64 mips ppc %{power64} %{ix86} x86_64
 
@@ -34,8 +37,10 @@ libunwind.
 %prep
 %setup -q
 %patch1 -p1 -b .default-to-exidx
+%patch2 -p1 -b .no-core-mem-check
 
 %build
+%global optflags %{optflags} -fcommon
 aclocal
 libtoolize --force
 autoheader
@@ -85,6 +90,9 @@ echo ====================TESTSUITE DISABLED=========================
 %{_includedir}/libunwind*.h
 
 %changelog
+* Fri Jan 31 2020 Tom Callaway <spot@fedoraproject.org> - 1.3.1-5
+- backport change from upstream to fix reported test failures (bz1795896)
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.1-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild