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diff --git a/bfd/cofflink.c b/bfd/cofflink.c
index 74d1a12..0b492ae 100644 (file)
--- a/bfd/cofflink.c
+++ b/bfd/cofflink.c
@@ -438,6 +438,11 @@ coff_link_add_symbols (abfd, info)
            (*sym_hash)->coff_link_hash_flags |=
              COFF_LINK_HASH_PE_SECTION_SYMBOL;
 
+         /* Limit the alignment of a common symbol to the possible
+             alignment of a section.  There is no point to permitting
+             a higher alignment for a common symbol: we can not
+             guarantee it, and it may cause us to allocate extra space
+             in the common section.  */
          if (section == bfd_com_section_ptr
              && (*sym_hash)->root.type == bfd_link_hash_common
              && ((*sym_hash)->root.u.c.p->alignment_power