powerpc .lcomm oddity

[Alan Modra]

This patch makes the powerpc .lcomm use the same subsection as the
generic .lcomm.  I'm not sure why, but read.c:bss_alloc uses
subsection 1, possibly as a hack to avoid a problem seen on powerpc
with the following.

 .section .bss,"aw",@nobits
 .word 0
 .lcomm test,1,1

One of these days when I have a little bit of spare time, I might even
fix this properly.

	* config/tc-ppc.c (ppc_elf_lcomm): Use subsection 1.

Index: gas/config/tc-ppc.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-ppc.c,v
retrieving revision 1.203
diff -u -p -r1.203 tc-ppc.c
--- gas/config/tc-ppc.c	14 Aug 2013 20:52:55 -0000	1.203
+++ gas/config/tc-ppc.c	16 Aug 2013 12:03:56 -0000
@@ -2196,7 +2195,7 @@ ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
     align2 = 0;
 
   record_alignment (bss_section, align2);
-  subseg_set (bss_section, 0);
+  subseg_set (bss_section, 1);
   if (align2)
     frag_align (align2, 0, 0);
   if (S_GET_SEGMENT (symbolP) == bss_section)

-- 
Alan Modra
Australia Development Lab, IBM