Using nested functions causes gcc to generate trampolines which
requires an executable stack.

http://bugs.gentoo.org/116968

--- elfutils/src/nm.c
+++ elfutils/src/nm.c
@@ -926,23 +926,22 @@
 /* Maximum size of memory we allocate on the stack.  */
 #define MAX_STACK_ALLOC	65536
 
-static void
-show_symbols (Ebl *ebl, GElf_Ehdr *ehdr, Elf_Scn *scn, Elf_Scn *xndxscn,
-	      GElf_Shdr *shdr, const char *prefix, const char *fname,
-	      const char *fullname)
-{
+/* hack to avoid nested functions -> executable stack */
+static Ebl *_show_symbols_ebl;
+static GElf_Shdr *_show_symbols_shdr;
+static
   int sort_by_name (const void *p1, const void *p2)
     {
       GElf_SymX *s1 = (GElf_SymX *) p1;
       GElf_SymX *s2 = (GElf_SymX *) p2;
       int result;
 
-      result = strcmp (elf_strptr (ebl->elf, shdr->sh_link, s1->sym.st_name),
-		       elf_strptr (ebl->elf, shdr->sh_link, s2->sym.st_name));
+      result = strcmp (elf_strptr (_show_symbols_ebl->elf, _show_symbols_shdr->sh_link, s1->sym.st_name),
+		       elf_strptr (_show_symbols_ebl->elf, _show_symbols_shdr->sh_link, s2->sym.st_name));
 
       return reverse_sort ? -result : result;
     }
-
+static
   int sort_by_address (const void *p1, const void *p2)
     {
       GElf_SymX *s1 = (GElf_SymX *) p1;
@@ -954,6 +953,11 @@
       return reverse_sort ? -result : result;
     }
 
+static void
+show_symbols (Ebl *ebl, GElf_Ehdr *ehdr, Elf_Scn *scn, Elf_Scn *xndxscn,
+	      GElf_Shdr *shdr, const char *prefix, const char *fname,
+	      const char *fullname)
+{
   /* Get the section header string table index.  */
   size_t shstrndx;
   if (elf_getshstrndx (ebl->elf, &shstrndx) < 0)
@@ -1129,6 +1133,8 @@
   nentries = nentries_used;
 
   /* Sort the entries according to the users wishes.  */
+  _show_symbols_ebl = ebl;
+  _show_symbols_shdr = shdr;
   if (sort == sort_name)
     qsort (sym_mem, nentries, sizeof (GElf_SymX), sort_by_name);
   else if (sort == sort_numeric)