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Remove locale file dependence on int32_t alignment.

This commit is contained in:
Joseph Myers 2013-10-03 21:51:32 +00:00
parent bc543b02c7
commit 975569d0d9
4 changed files with 42 additions and 32 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
2013-10-03 Joseph Myers <joseph@codesourcery.com>
* locale/localeinfo.h (LOCFILE_ALIGN): New macro.
(LOCFILE_ALIGN_MASK): Likewise.
(LOCFILE_ALIGN_UP): Likewise.
(LOCFILE_ALIGNED_P): Likewise.
* locale/programs/ld-collate.c (collate_output): Use the new
macros instead of __alignof__ (int32_t).
* locale/weight.h (findidx): Likewise.
2013-10-03 Ondřej Bílka <neleai@seznam.cz>
[BZ #431]

10
locale/localeinfo.h
View File

@ -87,6 +87,16 @@ struct __locale_data
values __flexarr; /* Items, usually pointers into `filedata'. */
};
/* This alignment is used for 32-bit integers in locale files, both
those that are explicitly int32_t or uint32_t and those that are
wchar_t, regardless of the (possibly smaller) alignment required
for such integers on a particular host. */
#define LOCFILE_ALIGN sizeof (int32_t)
#define LOCFILE_ALIGN_MASK (LOCFILE_ALIGN - 1)
#define LOCFILE_ALIGN_UP(x) (((x) + LOCFILE_ALIGN - 1) \
& ~LOCFILE_ALIGN_MASK)
#define LOCFILE_ALIGNED_P(x) (((x) & LOCFILE_ALIGN_MASK) == 0)
/* We know three kinds of collation sorting rules. */
enum coll_sort_rule
{

38
locale/programs/ld-collate.c
View File

@ -2154,11 +2154,11 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
++i;
}
/* And align the output. */
i = (nrules * i) % __alignof__ (int32_t);
i = (nrules * i) % LOCFILE_ALIGN;
if (i > 0)
do
obstack_1grow (&weightpool, '\0');
while (++i < __alignof__ (int32_t));
while (++i < LOCFILE_ALIGN);
add_locale_raw_obstack (&file, &weightpool);
@ -2204,8 +2204,7 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
struct element_t *runp = collate->mbheads[ch];
struct element_t *lastp;
assert ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) == 0);
assert (LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)));
tablemb[ch] = -obstack_object_size (&extrapool);
@ -2230,11 +2229,9 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
struct element_t *curp;
/* Compute how much space we will need. */
added = ((sizeof (int32_t) + 1 + 2 * (runp->nmbs - 1)
+ __alignof__ (int32_t) - 1)
& ~(__alignof__ (int32_t) - 1));
assert ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) == 0);
added = LOCFILE_ALIGN_UP (sizeof (int32_t) + 1
+ 2 * (runp->nmbs - 1));
assert (LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)));
obstack_make_room (&extrapool, added);
/* More than one consecutive entry. We mark this by having
@ -2291,11 +2288,9 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
/* Output the weight info. */
weightidx = output_weight (&weightpool, collate, runp);
added = ((sizeof (int32_t) + 1 + runp->nmbs - 1
+ __alignof__ (int32_t) - 1)
& ~(__alignof__ (int32_t) - 1));
assert ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) == 0);
added = LOCFILE_ALIGN_UP (sizeof (int32_t) + 1
+ runp->nmbs - 1);
assert (LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)));
obstack_make_room (&extrapool, added);
obstack_int32_grow_fast (&extrapool, weightidx);
@ -2307,8 +2302,7 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
}
/* Add alignment bytes if necessary. */
while ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) != 0)
while (!LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)))
obstack_1grow_fast (&extrapool, '\0');
/* Next entry. */
@ -2317,15 +2311,13 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
}
while (runp != NULL);
assert ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) == 0);
assert (LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)));
/* If the final entry in the list is not a single character we
add an UNDEFINED entry here. */
if (lastp->nmbs != 1)
{
int added = ((sizeof (int32_t) + 1 + 1 + __alignof__ (int32_t) - 1)
& ~(__alignof__ (int32_t) - 1));
int added = LOCFILE_ALIGN_UP (sizeof (int32_t) + 1 + 1);
obstack_make_room (&extrapool, added);
obstack_int32_grow_fast (&extrapool, 0);
@ -2335,15 +2327,13 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
obstack_1grow_fast (&extrapool, 0);
/* Add alignment bytes if necessary. */
while ((obstack_object_size (&extrapool)
& (__alignof__ (int32_t) - 1)) != 0)
while (!LOCFILE_ALIGNED_P (obstack_object_size (&extrapool)))
obstack_1grow_fast (&extrapool, '\0');
}
}
/* Add padding to the tables if necessary. */
while ((obstack_object_size (&weightpool) & (__alignof__ (int32_t) - 1))
!= 0)
while (!LOCFILE_ALIGNED_P (obstack_object_size (&weightpool)))
obstack_1grow (&weightpool, 0);
/* Now add the four tables. */

16
locale/weight.h
View File

@ -69,8 +69,8 @@ findidx (const unsigned char **cpp, size_t len)
/* Up to the next entry. */
cp += nhere;
if ((1 + nhere) % __alignof__ (int32_t) != 0)
cp += __alignof__ (int32_t) - (1 + nhere) % __alignof__ (int32_t);
if (!LOCFILE_ALIGNED_P (1 + nhere))
cp += LOCFILE_ALIGN - (1 + nhere) % LOCFILE_ALIGN;
}
else
{
@ -89,9 +89,9 @@ findidx (const unsigned char **cpp, size_t len)
{
/* Cannot be in this range. */
cp += 2 * nhere;
if ((1 + 2 * nhere) % __alignof__ (int32_t) != 0)
cp += (__alignof__ (int32_t)
- (1 + 2 * nhere) % __alignof__ (int32_t));
if (!LOCFILE_ALIGNED_P (1 + 2 * nhere))
cp += (LOCFILE_ALIGN
- (1 + 2 * nhere) % LOCFILE_ALIGN);
continue;
}
@ -104,9 +104,9 @@ findidx (const unsigned char **cpp, size_t len)
{
/* Cannot be in this range. */
cp += 2 * nhere;
if ((1 + 2 * nhere) % __alignof__ (int32_t) != 0)
cp += (__alignof__ (int32_t)
- (1 + 2 * nhere) % __alignof__ (int32_t));
if (!LOCFILE_ALIGNED_P (1 + 2 * nhere))
cp += (LOCFILE_ALIGN
- (1 + 2 * nhere) % LOCFILE_ALIGN);
continue;
}