From: Alan Modra <amodra@gmail.com>
Date: Sat, 12 Nov 2022 00:50:31 +0000 (+1030)
Subject: elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dbd23eaca95eb0264b6325c7286a4b370a67404d;p=thirdparty%2Fglibc.git

elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776)

Supports pcrel addressing of TLS GOT entry.  Also tweak the non-pcrel
asm constraint to better reflect how the reg is used.

(cherry picked from commit 94628de77888c3292fc103840731ff85f283368e)
---

diff --git a/NEWS b/NEWS
index fb2d73a6be4..dbe2b2e301d 100644
--- a/NEWS
+++ b/NEWS
@@ -50,6 +50,7 @@ The following bugs are resolved with this release:
     platforms
   [29730] broken y2038 support in fstatat on MIPS N64
   [29771] Restore IPC_64 support in sysvipc *ctl functions
+  [29776] elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10
 
 Version 2.36
 
diff --git a/sysdeps/powerpc/mod-tlsopt-powerpc.c b/sysdeps/powerpc/mod-tlsopt-powerpc.c
index 2a82e53bafe..d941024963f 100644
--- a/sysdeps/powerpc/mod-tlsopt-powerpc.c
+++ b/sysdeps/powerpc/mod-tlsopt-powerpc.c
@@ -22,7 +22,11 @@ tls_get_addr_opt_test (void)
   tls_index *tls_arg;
 #ifdef __powerpc64__
   register unsigned long thread_pointer __asm__ ("r13");
-  asm ("addi %0,2,foo@got@tlsgd" : "=r" (tls_arg));
+# ifdef __PCREL__
+  asm ("paddi %0,0,foo@got@tlsgd@pcrel,1" : "=b" (tls_arg));
+# else
+  asm ("addi %0,2,foo@got@tlsgd" : "=b" (tls_arg));
+# endif
 #else
   register unsigned long thread_pointer __asm__ ("r2");
   asm ("bcl 20,31,1f\n1:\t"