glibc/glibc-2.13-warnings.fix

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commit 5615eaf26469f20c2d8c3be5770e12564a1edfff
Author: Roland McGrath <roland@hack.frob.com>
Date: Fri Jun 10 12:45:09 2011 -0700
Quash some new warnings from GCC 4.6.
2011-06-10 Roland McGrath <roland@hack.frob.com>
* elf/dl-open.c (_dl_open): Quash warnings when DL_NNS==1.
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 8d90b56..19fda91 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -516,7 +516,7 @@ _dl_open (const char *file, int mode, const void *caller_dlopen, Lmid_t nsid,
if (__builtin_expect (nsid == LM_ID_NEWLM, 0))
{
/* Find a new namespace. */
- for (nsid = 1; nsid < GL(dl_nns); ++nsid)
+ for (nsid = 1; DL_NNS > 1 && nsid < GL(dl_nns); ++nsid)
if (GL(dl_ns)[nsid]._ns_loaded == NULL)
break;
@@ -528,8 +528,7 @@ _dl_open (const char *file, int mode, const void *caller_dlopen, Lmid_t nsid,
_dl_signal_error (EINVAL, file, NULL, N_("\
no more namespaces available for dlmopen()"));
}
-
- if (nsid == GL(dl_nns))
+ else if (nsid == GL(dl_nns))
{
__rtld_lock_initialize (GL(dl_ns)[nsid]._ns_unique_sym_table.lock);
++GL(dl_nns);