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emutls.c (struct __emutls_array): New.

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* emutls.c (struct __emutls_array): New.
        (emutls_destroy): Use it instead of casting element 0 from void*.
        (__emutls_get_address): Likewise.

From-SVN: r123351
This commit is contained in:
Richard Henderson 2007-03-29 16:34:10 -07:00 • committed by Richard Henderson
parent 50decae30e
commit 5b77de89ae
2 changed files with 31 additions and 18 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2007-03-29 Richard Henderson <rth@redhat.com>
* emutls.c (struct __emutls_array): New.
(emutls_destroy): Use it instead of casting element 0 from void*.
(__emutls_get_address): Likewise.
2007-03-29 Richard Henderson <rth@redhat.com>
* varasm.c (initializer_constant_valid_p): Don't deny

43
gcc/emutls.c
View file

@ -48,6 +48,12 @@ struct __emutls_object
void *templ;
};
struct __emutls_array
{
pointer size;
void **data[];
};
#ifdef __GTHREADS
#ifdef __GTHREAD_MUTEX_INIT
static __gthread_mutex_t emutls_mutex = __GTHREAD_MUTEX_INIT;
@ -60,15 +66,16 @@ static pointer emutls_size;
static void
emutls_destroy (void *ptr)
{
void ***arr = (void ***) ptr;
unsigned long int size = (unsigned long int) arr[0];
++arr;
while (--size)
struct __emutls_array *arr = ptr;
pointer size = arr->size;
pointer i;
for (i = 0; i < size; ++i)
{
if (*arr)
free ((*arr)[-1]);
++arr;
if (arr->data[i])
free (arr->data[i][-1]);
}
free (ptr);
}
@ -130,9 +137,9 @@ __emutls_get_address (struct __emutls_object *obj)
#ifndef __GTHREADS
abort ();
#else
pointer offset;
pointer offset = obj->loc.offset;
if (__builtin_expect (obj->loc.offset == 0, 0))
if (__builtin_expect (offset == 0, 0))
{
static __gthread_once_t once = __GTHREAD_ONCE_INIT;
__gthread_once (&once, emutls_init);
@ -141,37 +148,37 @@ __emutls_get_address (struct __emutls_object *obj)
obj->loc.offset = offset;
__gthread_mutex_unlock (&emutls_mutex);
}
else
offset = obj->loc.offset;
void **arr = (void **) __gthread_getspecific (emutls_key);
struct __emutls_array *arr = __gthread_getspecific (emutls_key);
if (__builtin_expect (arr == NULL, 0))
{
pointer size = offset + 32;
arr = calloc (size, sizeof (void *));
if (arr == NULL)
abort ();
arr[0] = (void *) size;
arr->size = size;
__gthread_setspecific (emutls_key, (void *) arr);
}
else if (__builtin_expect (offset >= (pointer) arr[0], 0))
else if (__builtin_expect (offset >= arr->size, 0))
{
pointer orig_size = (pointer) arr[0];
pointer orig_size = arr->size;
pointer size = orig_size * 2;
if (offset >= size)
size = offset + 32;
arr = realloc (arr, size * sizeof (void *));
if (arr == NULL)
abort ();
memset (arr + orig_size, 0, (size - orig_size) * sizeof (void *));
arr->size = size;
memset (arr->data + orig_size - 1, 0,
(size - orig_size) * sizeof (void *));
__gthread_setspecific (emutls_key, (void *) arr);
}
void *ret = arr[offset];
void *ret = arr->data[offset - 1];
if (__builtin_expect (ret == NULL, 0))
{
ret = emutls_alloc (obj);
arr[offset] = ret;
arr->data[offset - 1] = ret;
}
return ret;
#endif