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* [glibc/release/2.34/master] elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776)
@ 2023-01-10 19:37 Florian Weimer
  0 siblings, 0 replies; only message in thread
From: Florian Weimer @ 2023-01-10 19:37 UTC (permalink / raw)
  To: glibc-cvs

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d0e2ac0c5902bd0e671863cc6cb14024d0365e67

commit d0e2ac0c5902bd0e671863cc6cb14024d0365e67
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.
    
    (cherry picked from commit 94628de77888c3292fc103840731ff85f283368e)

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

diff --git a/NEWS b/NEWS
index a70622df1d..1999ad65d6 100644
--- a/NEWS
+++ b/NEWS
@@ -135,6 +135,7 @@ The following bugs are resolved with this release:
   [29657] libc: Incorrect struct stat for 64-bit time on linux/generic
     platforms
   [29771] Restore IPC_64 support in sysvipc *ctl functions
+  [29776] elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10
 
 \f
 Version 2.34
diff --git a/sysdeps/powerpc/mod-tlsopt-powerpc.c b/sysdeps/powerpc/mod-tlsopt-powerpc.c
index ee0db12a73..51cc502f28 100644
--- a/sysdeps/powerpc/mod-tlsopt-powerpc.c
+++ b/sysdeps/powerpc/mod-tlsopt-powerpc.c
@@ -24,7 +24,11 @@ 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"

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