From: Alan Modra <amodra@gmail.com>
Date: Tue, 13 Dec 2005 05:39:34 +0000 (+0000)
Subject: 	* elf64-ppc.c (ppc64_elf_relocate_section): Force tail calls in
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4fa1c2377aada42a2ecf3c3d16e1a3867fdd3d74;p=binutils-gdb.git

	* elf64-ppc.c (ppc64_elf_relocate_section): Force tail calls in
	shared libs to resolve locally.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index cf86df406ae..f7ed00ac08d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2005-12-13  Alan Modra  <amodra@bigpond.net.au>
+
+	* elf64-ppc.c (ppc64_elf_relocate_section): Force tail calls in
+	shared libs to resolve locally.
+
 2005-12-12  Paul Brook  <paul@codesourcery.com>
 
 	* bfd-in2.h: Regenerate.
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index b72c6bd143d..da1550ea69f 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -10070,10 +10070,12 @@ ppc64_elf_relocate_section (bfd *output_bfd,
 		  if (stub_entry->stub_type == ppc_stub_plt_call)
 		    {
 		      /* If this is a plain branch rather than a branch
-			 and link, don't require a nop.  */
+			 and link, don't require a nop.  However, don't
+			 allow tail calls in a shared library as they
+			 will result in r2 being corrupted.  */
 		      unsigned long br;
 		      br = bfd_get_32 (input_bfd, contents + rel->r_offset);
-		      if ((br & 1) == 0)
+		      if (info->executable && (br & 1) == 0)
 			can_plt_call = TRUE;
 		      else
 			stub_entry = NULL;