[Bug libc/19826] invalid pointer returned from __tls_get_addr with static linking

["aoliva at sourceware dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=19826

--- Comment #12 from Alexandre Oliva <aoliva at sourceware dot org> ---
Given all the information I got so far, it looks like this will fix it:

diff --git a/elf/dl-tls.c b/elf/dl-tls.c
index 17567ad..60f4c1d 100644
--- a/elf/dl-tls.c
+++ b/elf/dl-tls.c
@@ -538,6 +538,10 @@ _dl_allocate_tls_init (void *result)
 # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
 #endif

+         /* Set up the DTV entry.  The simplified __tls_get_addr that
+            some platforms use in static programs requires it.  */
+         dtv[map->l_tls_modid].pointer.val = dest;
+
          /* Copy the initialization image and clear the BSS part.  */
          memset (__mempcpy (dest, map->l_tls_initimage,
                             map->l_tls_initimage_size), '\0',

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