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

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

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=94628de77888c3292fc103840731ff85f283368e

commit 94628de77888c3292fc103840731ff85f283368e
Author: Alan Modra <amodra@gmail.com>
Date:   Sat Nov 12 11:20:31 2022 +1030

    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.

Diff:
---
 sysdeps/powerpc/mod-tlsopt-powerpc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sysdeps/powerpc/mod-tlsopt-powerpc.c b/sysdeps/powerpc/mod-tlsopt-powerpc.c
index 2a82e53baf..d941024963 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"