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c-pragma.c (push_alignment): Don't ignore alignments greater than 4 bytes.

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* c-pragma.c (push_alignment): Don't ignore alignments greater than
        4 bytes.
        (insert_pack_attributes): Take into account member natural
        alignment.

From-SVN: r27648
This commit is contained in:
Mumit Khan 1999-06-21 05:11:15 +00:00 committed by Jeff Law
parent 90e72e20a3
commit 224bb3734d
2 changed files with 13 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,5 +1,10 @@
Mon Jun 21 05:33:15 1999 Mumit Khan <khan@xraylith.wisc.edu>
* c-pragma.c (push_alignment): Don't ignore alignments greater than
4 bytes.
(insert_pack_attributes): Take into account member natural
alignment.
* i386/winnt.c (exports_head): New static variable.
(i386_pe_record_exported_symbol): New function.
(i386_pe_asm_file_end): Use.

11
gcc/c-pragma.c
View File

@ -141,7 +141,7 @@ pop_alignment (id)
{
entry = alignment_stack->prev;
if (entry == NULL || entry->alignment > 4)
if (entry == NULL)
maximum_field_alignment = 0;
else
maximum_field_alignment = entry->alignment * 8;
@ -163,6 +163,7 @@ insert_pack_attributes (node, attributes, prefix)
tree * prefix;
{
tree a;
int field_alignment;
/* If we are not packing, then there is nothing to do. */
if (maximum_field_alignment == 0
@ -173,12 +174,16 @@ insert_pack_attributes (node, attributes, prefix)
if (TREE_CODE_CLASS (TREE_CODE (node)) != 'd'
|| TREE_CODE (node) != FIELD_DECL)
return;
field_alignment = TYPE_ALIGN (TREE_TYPE (node));
if (field_alignment <= 0 || field_alignment > maximum_field_alignment)
field_alignment = maximum_field_alignment;
/* Add a 'packed' attribute. */
* attributes = tree_cons (get_identifier ("packed"), NULL, * attributes);
/* If the alignment is > 8 then add an alignment attribute as well. */
if (maximum_field_alignment > 8)
if (field_alignment > 8)
{
/* If the aligned attribute is already present then do not override it. */
for (a = * attributes; a; a = TREE_CHAIN (a))
@ -201,7 +206,7 @@ insert_pack_attributes (node, attributes, prefix)
* attributes = tree_cons
(get_identifier ("aligned"),
tree_cons (NULL,
build_int_2 (maximum_field_alignment / 8, 0),
build_int_2 (field_alignment / 8, 0),
NULL),
* attributes);
}