1999-08-08 Mark Elbrecht <snowball3@bigfoot.com>

	* libcoff-in.h (struct coff_section_alignment_entry): Define.
	* coffcode.h (coff_set_custom_section_alignment): New static
	function.
	(coff_section_alignment_table): New static array.
	(coff_new_section_hook): Use coff_set_customer_section_alignment.
	* coff-go32.c (COFF_SECTION_ALIGNMENT_ENTRIES): Define.
	* coff-stgo32.c (COFF_SECTION_ALIGNMENT_ENTRIES): Define.
	* libcoff.h: Rebuild.

1 files changed, 36 insertions, 1 deletions

diff --git a/bfd/libcoff.h b/bfd/libcoff.h
index 229668ed586..fb3d5be73d9 100644
--- a/bfd/libcoff.h
+++ b/bfd/libcoff.h
@@ -1,5 +1,5 @@
 /* BFD COFF object file private structure.
-   Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 1998
+   Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -467,6 +467,41 @@ struct coff_final_link_info
   struct internal_reloc *internal_relocs;
 };
 
+/* Most COFF variants have no way to record the alignment of a
+   section.  This struct is used to set a specific alignment based on
+   the name of the section.  */
+
+struct coff_section_alignment_entry
+{
+  /* The section name.  */
+  const char *name;
+
+  /* This is either (unsigned int) -1, indicating that the section
+     name must match exactly, or it is the number of letters which
+     must match at the start of the name.  */
+  unsigned int comparison_length;
+
+  /* These macros may be used to fill in the first two fields in a
+     structure initialization.  */
+#define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
+#define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)
+
+  /* Only use this entry if the default section alignment for this
+     target is at least that much (as a power of two).  If this field
+     is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
+  unsigned int default_alignment_min;
+
+  /* Only use this entry if the default section alignment for this
+     target is no greater than this (as a power of two).  If this
+     field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
+  unsigned int default_alignment_max;
+
+#define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)
+
+  /* The desired alignment for this section (as a power of two).  */
+  unsigned int alignment_power;
+};
+
 extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 extern boolean _bfd_coff_link_hash_table_init