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Fixes for structure size/alignment calculations

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@22283 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-Macdonald 2006-01-10 18:01:15 +00:00
parent 06981169ed
commit d98714e355
2 changed files with 17 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2006-01-10 Richard Frith-Macdonald <rfm@gnu.org>
* Source/mframe.m:
When calculating info about a structure, make sure its alignment is
that of its most strictly aligned field and make sure its size is a
multiple of its alignment.
2006-01-10 Richard Frith-Macdonald <rfm@gnu.org>
* Source/GSFileHandle.m:

11
Source/mframe.m
View file

@ -384,7 +384,8 @@ mframe_next_arg(const char *typePtr, NSArgumentInfo *info)
acc_align = MAX(local.align, def_align);
}
/*
* Continue accumulating structure size.
* Continue accumulating structure size
* and adjust alignment if necessary
*/
while (*typePtr != _C_STRUCT_E)
{
@ -395,6 +396,14 @@ mframe_next_arg(const char *typePtr, NSArgumentInfo *info)
}
acc_size = ROUND(acc_size, local.align);
acc_size += local.size;
acc_align = MAX(local.align, acc_align);
}
/*
* Size must be a multiple of alignment
*/
if (acc_size % acc_align != 0)
{
acc_size += acc_align - acc_size % acc_align;
}
info->size = acc_size;
info->align = acc_align;