ppc64le: scv ABI error handling fails to check IS_ERR_VALUE (#1963901)

Resolves: #1963901

glibc-upstream-2.33-41.patch

@@ -0,0 +1,32 @@
+commit 0ef0e6de7fdfa18328b09ba2afb4f0112d4bdab4
+Author: Nicholas Piggin <npiggin@gmail.com>
+Date:   Thu May 20 11:00:36 2021 -0300
+
+    powerpc: Fix handling of scv return error codes [BZ #27892]
+    
+    When using scv for templated ASM syscalls, current code interprets any
+    negative return value as error, but the only valid error codes are in
+    the range -4095..-1 according to the ABI.
+    
+    This commit also fixes 'signal.gen.test' strace test, where the issue
+    was first identified.
+    
+    Reviewed-by: Matheus Castanho <msc@linux.ibm.com>
+    (cherry picked from commit 7de36744ee1325f35d3fe0ca079dd33c40b12267)
+
+diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h
+index c57bb1c05d02f663..1ea4c3b917295168 100644
+--- a/sysdeps/powerpc/powerpc64/sysdep.h
++++ b/sysdeps/powerpc/powerpc64/sysdep.h
+@@ -398,8 +398,9 @@ LT_LABELSUFFIX(name,_name_end): ; \
+ #endif
+ 
+ #define RET_SCV \
+-    cmpdi r3,0; \
+-    bgelr+; \
++    li r9,-4095; \
++    cmpld r3,r9; \
++    bltlr+; \
+     neg r3,r3;
+ 
+ #define RET_SC \

glibc.spec

@@ -89,7 +89,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 13%{?dist}
+Release: 14%{?dist}
 
 # In general, GPLv2+ is used by programs, LGPLv2+ is used for
 # libraries.
@@ -206,6 +206,7 @@ Patch71: glibc-upstream-2.33-40.patch
 Patch72: glibc-cpu-check-1.patch
 Patch73: glibc-cpu-check-2.patch
 Patch74: glibc-cpu-check-3.patch
+Patch75: glibc-upstream-2.33-41.patch
 
 ##############################################################################
 # Continued list of core "glibc" package information:
@@ -2160,6 +2161,11 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Tue May 25 2021 Florian Weimer <fweimer@redhat.com> - 2.33-14
+- Import commit 0ef0e6de7fdfa18328b09ba2afb4f0112d4bdab4 from the
+  glibc 2.33 branch:
+- ppc64le: scv ABI error handling fails to check IS_ERR_VALUE (#1963901)
+
 * Fri May 21 2021 Florian Weimer <fweimer@redhat.com> - 2.33-13
 - Switch back to a unified glibc-headers package (#1940686)