+2006-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ * sunrpc/xdr_mem.c (xdrmem_setpos): Don't compare addresses
+ as signed longs, check for x_base + pos overflow.
+ * sunrpc/Makefile (tests): Add tst-xdrmem2.
+ * sunrpc/tst-xdrmem2.c: New test.
+
+2006-10-18 Ulrich Drepper <drepper@redhat.com>
+
+ * elf/dl-lookup.c (_dl_lookup_symbol_x): Add warning to
+ _dl_lookup_symbol_x code.
+
+2006-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ * elf/dl-runtime.c: Include sysdep-cancel.h.
+ (_dl_fixup, _dl_profile_fixup): Use __rtld_mrlock_* and
+ scoperec->nusers only if !SINGLE_THREAD_P. Use atomic_*
+ instead of catomic_* macros.
+ * elf/dl-sym.c: Include sysdep-cancel.h.
+ (do_sym): Use __rtld_mrlock_* and scoperec->nusers only
+ if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
+ * elf/dl-close.c: Include sysdep-cancel.h.
+ (_dl_close): Use __rtld_mrlock_* and scoperec->nusers only
+ if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
+ * elf/dl-open.c: Include sysdep-cancel.h.
+ (dl_open_worker): Use __rtld_mrlock_* and scoperec->nusers only
+ if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
+
+2006-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ [BZ #3313]
+ * malloc/malloc.c (malloc_consolidate): Set maxfb to address of last
+ fastbin rather than end of fastbin array.
+
+2006-10-18 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/i386/i486/bits/atomic.h (catomic_decrement): Use correct
+ body macro.
+ * sysdeps/x86_64/bits/atomic.h
+ (__arch_c_compare_and_exchange_val_64_acq): Add missing casts.
+ (catomic_decrement): Use correct body macro.
+
+2006-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ * include/atomic.h: Add a unique prefix to all local variables
+ in macros.
+ * csu/tst-atomic.c (do_test): Test also catomic_* macros.
+
2006-10-16 Ulrich Drepper <drepper@redhat.com>
[BZ #3369]
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
- * include/link.h: Inlcude <rtld-lowlevel.h>. Define struct
+ * include/link.h: Include <rtld-lowlevel.h>. Define struct
r_scoperec. Replace r_scope with pointer to r_scoperec structure.
Add l_scoperec_lock.
* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
/* Tests for atomic.h macros.
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
}
#endif
+#ifdef catomic_compare_and_exchange_val_acq
+ mem = 24;
+ if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
+ || mem != 35)
+ {
+ puts ("catomic_compare_and_exchange_val_acq test 1 failed");
+ ret = 1;
+ }
+
+ mem = 12;
+ if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
+ || mem != 12)
+ {
+ puts ("catomic_compare_and_exchange_val_acq test 2 failed");
+ ret = 1;
+ }
+
+ mem = -15;
+ if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
+ || mem != -56)
+ {
+ puts ("catomic_compare_and_exchange_val_acq test 3 failed");
+ ret = 1;
+ }
+
+ mem = -1;
+ if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
+ || mem != -1)
+ {
+ puts ("catomic_compare_and_exchange_val_acq test 4 failed");
+ ret = 1;
+ }
+#endif
+
+ mem = 24;
+ if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24)
+ || mem != 35)
+ {
+ puts ("catomic_compare_and_exchange_bool_acq test 1 failed");
+ ret = 1;
+ }
+
+ mem = 12;
+ if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15)
+ || mem != 12)
+ {
+ puts ("catomic_compare_and_exchange_bool_acq test 2 failed");
+ ret = 1;
+ }
+
+ mem = -15;
+ if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15)
+ || mem != -56)
+ {
+ puts ("catomic_compare_and_exchange_bool_acq test 3 failed");
+ ret = 1;
+ }
+
+ mem = -1;
+ if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0)
+ || mem != -1)
+ {
+ puts ("catomic_compare_and_exchange_bool_acq test 4 failed");
+ ret = 1;
+ }
+
+ mem = 2;
+ if (catomic_exchange_and_add (&mem, 11) != 2
+ || mem != 13)
+ {
+ puts ("catomic_exchange_and_add test failed");
+ ret = 1;
+ }
+
+ mem = -21;
+ catomic_add (&mem, 22);
+ if (mem != 1)
+ {
+ puts ("catomic_add test failed");
+ ret = 1;
+ }
+
+ mem = -1;
+ catomic_increment (&mem);
+ if (mem != 0)
+ {
+ puts ("catomic_increment test failed");
+ ret = 1;
+ }
+
+ mem = 2;
+ if (catomic_increment_val (&mem) != 3)
+ {
+ puts ("catomic_increment_val test failed");
+ ret = 1;
+ }
+
+ mem = 17;
+ catomic_decrement (&mem);
+ if (mem != 16)
+ {
+ puts ("catomic_decrement test failed");
+ ret = 1;
+ }
+
+ if (catomic_decrement_val (&mem) != 15)
+ {
+ puts ("catomic_decrement_val test failed");
+ ret = 1;
+ }
+
return ret;
}
#include <ldsodefs.h>
#include <sys/types.h>
#include <sys/mman.h>
+#include <sysdep-cancel.h>
/* Type of the constructor functions. */
struct r_scoperec *old = imap->l_scoperec;
- __rtld_mrlock_change (imap->l_scoperec_lock);
- imap->l_scoperec = newp;
- __rtld_mrlock_done (imap->l_scoperec_lock);
-
- if (catomic_increment_val (&old->nusers) != 1)
+ if (SINGLE_THREAD_P)
+ imap->l_scoperec = newp;
+ else
{
- old->remove_after_use = true;
- old->notify = true;
- if (catomic_decrement_val (&old->nusers) != 0)
- __rtld_waitzero (old->nusers);
+ __rtld_mrlock_change (imap->l_scoperec_lock);
+ imap->l_scoperec = newp;
+ __rtld_mrlock_done (imap->l_scoperec_lock);
+
+ if (atomic_increment_val (&old->nusers) != 1)
+ {
+ old->remove_after_use = true;
+ old->notify = true;
+ if (atomic_decrement_val (&old->nusers) != 0)
+ __rtld_waitzero (old->nusers);
+ }
}
/* No user anymore, we can free it now. */
/* Search loaded objects' symbol tables for a definition of the symbol
- UNDEF_NAME, perhaps with a requested version for the symbol. */
+ UNDEF_NAME, perhaps with a requested version for the symbol.
+
+ We must never have calls to the audit functions inside this function
+ or in any function which gets called. If this would happen the audit
+ code might create a thread which can throw off all the scope locking. */
lookup_t
internal_function
_dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
#include <ldsodefs.h>
#include <bp-sym.h>
#include <caller.h>
+#include <sysdep-cancel.h>
#include <dl-dst.h>
if (old == &imap->l_scoperec_mem)
imap->l_scoperec = newp;
+ else if (SINGLE_THREAD_P)
+ {
+ imap->l_scoperec = newp;
+ free (old);
+ }
else
{
__rtld_mrlock_change (imap->l_scoperec_lock);
imap->l_scoperec = newp;
__rtld_mrlock_done (imap->l_scoperec_lock);
- catomic_increment (&old->nusers);
+ atomic_increment (&old->nusers);
old->remove_after_use = true;
- if (catomic_decrement_val (&old->nusers) == 0)
+ if (atomic_decrement_val (&old->nusers) == 0)
/* No user, we can free it here and now. */
free (old);
}
#include <unistd.h>
#include <sys/param.h>
#include <ldsodefs.h>
+#include <sysdep-cancel.h>
#include "dynamic-link.h"
#if (!defined ELF_MACHINE_NO_RELA && !defined ELF_MACHINE_PLT_REL) \
}
struct r_scoperec *scoperec = l->l_scoperec;
- if (l->l_type == lt_loaded)
+ if (l->l_type == lt_loaded && !SINGLE_THREAD_P)
{
__rtld_mrlock_lock (l->l_scoperec_lock);
scoperec = l->l_scoperec;
- catomic_increment (&scoperec->nusers);
+ atomic_increment (&scoperec->nusers);
__rtld_mrlock_unlock (l->l_scoperec_lock);
}
ELF_RTYPE_CLASS_PLT,
DL_LOOKUP_ADD_DEPENDENCY, NULL);
- if (l->l_type == lt_loaded
- && catomic_decrement_val (&scoperec->nusers) == 0
+ if (l->l_type == lt_loaded && !SINGLE_THREAD_P
+ && atomic_decrement_val (&scoperec->nusers) == 0
&& __builtin_expect (scoperec->remove_after_use, 0))
{
if (scoperec->notify)
}
struct r_scoperec *scoperec = l->l_scoperec;
- if (l->l_type == lt_loaded)
+ if (l->l_type == lt_loaded && !SINGLE_THREAD_P)
{
__rtld_mrlock_lock (l->l_scoperec_lock);
scoperec = l->l_scoperec;
- catomic_increment (&scoperec->nusers);
+ atomic_increment (&scoperec->nusers);
__rtld_mrlock_unlock (l->l_scoperec_lock);
}
ELF_RTYPE_CLASS_PLT,
DL_LOOKUP_ADD_DEPENDENCY, NULL);
- if (l->l_type == lt_loaded
- && catomic_decrement_val (&scoperec->nusers) == 0
+ if (l->l_type == lt_loaded && !SINGLE_THREAD_P
+ && atomic_decrement_val (&scoperec->nusers) == 0
&& __builtin_expect (scoperec->remove_after_use, 0))
{
if (scoperec->notify)
#include <dlfcn.h>
#include <ldsodefs.h>
#include <dl-hash.h>
+#include <sysdep-cancel.h>
#ifdef USE_TLS
# include <dl-tls.h>
#endif
the initial binary. And then the more complex part
where the object is dynamically loaded and the scope
array can change. */
- if (match->l_type != lt_loaded)
+ if (match->l_type != lt_loaded || SINGLE_THREAD_P)
result = GLRO(dl_lookup_symbol_x) (name, match, &ref,
match->l_scoperec->scope, vers, 0,
flags | DL_LOOKUP_ADD_DEPENDENCY,
{
__rtld_mrlock_lock (match->l_scoperec_lock);
struct r_scoperec *scoperec = match->l_scoperec;
- catomic_increment (&scoperec->nusers);
+ atomic_increment (&scoperec->nusers);
__rtld_mrlock_unlock (match->l_scoperec_lock);
struct call_dl_lookup_args args;
int err = GLRO(dl_catch_error) (&objname, &errstring, &malloced,
call_dl_lookup, &args);
- if (catomic_decrement_val (&scoperec->nusers) == 0
+ if (atomic_decrement_val (&scoperec->nusers) == 0
&& __builtin_expect (scoperec->remove_after_use, 0))
{
if (scoperec->notify)
Architectures must provide a few lowlevel macros (the compare
and exchange definitions). All others are optional. They
should only be provided if the architecture has specific
- support for the operation. */
+ support for the operation.
+
+ As <atomic.h> macros are usually heavily nested and often use local
+ variables to make sure side-effects are evaluated properly, use for
+ macro local variables a per-macro unique prefix. This file uses
+ __atgN_ prefix where N is different in each macro. */
#include <stdlib.h>
and following args. */
#define __atomic_val_bysize(pre, post, mem, ...) \
({ \
- __typeof (*mem) __result; \
+ __typeof (*mem) __atg1_result; \
if (sizeof (*mem) == 1) \
- __result = pre##_8_##post (mem, __VA_ARGS__); \
+ __atg1_result = pre##_8_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 2) \
- __result = pre##_16_##post (mem, __VA_ARGS__); \
+ __atg1_result = pre##_16_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 4) \
- __result = pre##_32_##post (mem, __VA_ARGS__); \
+ __atg1_result = pre##_32_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 8) \
- __result = pre##_64_##post (mem, __VA_ARGS__); \
+ __atg1_result = pre##_64_##post (mem, __VA_ARGS__); \
else \
abort (); \
- __result; \
+ __atg1_result; \
})
#define __atomic_bool_bysize(pre, post, mem, ...) \
({ \
- int __result; \
+ int __atg2_result; \
if (sizeof (*mem) == 1) \
- __result = pre##_8_##post (mem, __VA_ARGS__); \
+ __atg2_result = pre##_8_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 2) \
- __result = pre##_16_##post (mem, __VA_ARGS__); \
+ __atg2_result = pre##_16_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 4) \
- __result = pre##_32_##post (mem, __VA_ARGS__); \
+ __atg2_result = pre##_32_##post (mem, __VA_ARGS__); \
else if (sizeof (*mem) == 8) \
- __result = pre##_64_##post (mem, __VA_ARGS__); \
+ __atg2_result = pre##_64_##post (mem, __VA_ARGS__); \
else \
abort (); \
- __result; \
+ __atg2_result; \
})
# define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
({ /* Cannot use __oldval here, because macros later in this file might \
call this macro with __oldval argument. */ \
- __typeof (oldval) __old = (oldval); \
- atomic_compare_and_exchange_val_acq (mem, newval, __old) != __old; \
+ __typeof (oldval) __atg3_old = (oldval); \
+ atomic_compare_and_exchange_val_acq (mem, newval, __atg3_old) \
+ != __atg3_old; \
})
# endif
#endif
# define catomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
({ /* Cannot use __oldval here, because macros later in this file might \
call this macro with __oldval argument. */ \
- __typeof (oldval) __old = (oldval); \
- catomic_compare_and_exchange_val_acq (mem, newval, __old) != __old; \
+ __typeof (oldval) __atg4_old = (oldval); \
+ catomic_compare_and_exchange_val_acq (mem, newval, __atg4_old) \
+ != __atg4_old; \
})
# endif
#endif
/* Store NEWVALUE in *MEM and return the old value. */
#ifndef atomic_exchange_acq
# define atomic_exchange_acq(mem, newvalue) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (newvalue); \
+ ({ __typeof (*(mem)) __atg5_oldval; \
+ __typeof (mem) __atg5_memp = (mem); \
+ __typeof (*(mem)) __atg5_value = (newvalue); \
\
do \
- __oldval = *__memp; \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __value, \
- __oldval),\
- 0)); \
+ __atg5_oldval = *__atg5_memp; \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg5_memp, __atg5_value, \
+ __atg5_oldval), 0)); \
\
- __oldval; })
+ __atg5_oldval; })
#endif
#ifndef atomic_exchange_rel
/* Add VALUE to *MEM and return the old value of *MEM. */
#ifndef atomic_exchange_and_add
# define atomic_exchange_and_add(mem, value) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (value); \
+ ({ __typeof (*(mem)) __atg6_oldval; \
+ __typeof (mem) __atg6_memp = (mem); \
+ __typeof (*(mem)) __atg6_value = (value); \
\
do \
- __oldval = *__memp; \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- + __value,\
- __oldval),\
- 0)); \
+ __atg6_oldval = *__atg6_memp; \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg6_memp, \
+ __atg6_oldval \
+ + __atg6_value, \
+ __atg6_oldval), 0)); \
\
- __oldval; })
+ __atg6_oldval; })
#endif
#ifndef catomic_exchange_and_add
# define catomic_exchange_and_add(mem, value) \
- ({ __typeof (*(mem)) __oldv; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (value); \
+ ({ __typeof (*(mem)) __atg7_oldv; \
+ __typeof (mem) __atg7_memp = (mem); \
+ __typeof (*(mem)) __atg7_value = (value); \
\
do \
- __oldv = *__memp; \
- while (__builtin_expect (catomic_compare_and_exchange_bool_acq (__memp, \
- __oldv \
- + __value,\
- __oldv), \
- 0)); \
+ __atg7_oldv = *__atg7_memp; \
+ while (__builtin_expect \
+ (catomic_compare_and_exchange_bool_acq (__atg7_memp, \
+ __atg7_oldv \
+ + __atg7_value, \
+ __atg7_oldv), 0)); \
\
- __oldv; })
+ __atg7_oldv; })
#endif
#ifndef atomic_max
# define atomic_max(mem, value) \
do { \
- __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (value); \
+ __typeof (*(mem)) __atg8_oldval; \
+ __typeof (mem) __atg8_memp = (mem); \
+ __typeof (*(mem)) __atg8_value = (value); \
do { \
- __oldval = *__memp; \
- if (__oldval >= __value) \
+ __atg8_oldval = *__atg8_memp; \
+ if (__atg8_oldval >= __atg8_value) \
break; \
- } while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __value, \
- __oldval),\
- 0)); \
+ } while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg8_memp, __atg8_value,\
+ __atg8_oldval), 0)); \
} while (0)
#endif
#ifndef catomic_max
# define catomic_max(mem, value) \
do { \
- __typeof (*(mem)) __oldv; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (value); \
+ __typeof (*(mem)) __atg9_oldv; \
+ __typeof (mem) __atg9_memp = (mem); \
+ __typeof (*(mem)) __atg9_value = (value); \
do { \
- __oldv = *__memp; \
- if (__oldv >= __value) \
+ __atg9_oldv = *__atg9_memp; \
+ if (__atg9_oldv >= __atg9_value) \
break; \
- } while (__builtin_expect (catomic_compare_and_exchange_bool_acq (__memp, \
- __value,\
- __oldv),\
- 0)); \
+ } while (__builtin_expect \
+ (catomic_compare_and_exchange_bool_acq (__atg9_memp, \
+ __atg9_value, \
+ __atg9_oldv), 0)); \
} while (0)
#endif
#ifndef atomic_min
# define atomic_min(mem, value) \
do { \
- __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __value = (value); \
+ __typeof (*(mem)) __atg10_oldval; \
+ __typeof (mem) __atg10_memp = (mem); \
+ __typeof (*(mem)) __atg10_value = (value); \
do { \
- __oldval = *__memp; \
- if (__oldval <= __value) \
+ __atg10_oldval = *__atg10_memp; \
+ if (__atg10_oldval <= __atg10_value) \
break; \
- } while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __value, \
- __oldval),\
- 0)); \
+ } while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg10_memp, \
+ __atg10_value, \
+ __atg10_oldval), 0)); \
} while (0)
#endif
/* Decrement *MEM if it is > 0, and return the old value. */
#ifndef atomic_decrement_if_positive
# define atomic_decrement_if_positive(mem) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
+ ({ __typeof (*(mem)) __atg11_oldval; \
+ __typeof (mem) __atg11_memp = (mem); \
\
do \
{ \
- __oldval = *__memp; \
- if (__builtin_expect (__oldval <= 0, 0)) \
+ __atg11_oldval = *__atg11_memp; \
+ if (__builtin_expect (__atg11_oldval <= 0, 0)) \
break; \
} \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- - 1, \
- __oldval),\
- 0));\
- __oldval; })
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg11_memp, \
+ __atg11_oldval - 1, \
+ __atg11_oldval), 0)); \
+ __atg11_oldval; })
#endif
#ifndef atomic_add_negative
# define atomic_add_negative(mem, value) \
- ({ __typeof (value) __aan_value = (value); \
- atomic_exchange_and_add (mem, __aan_value) < -__aan_value; })
+ ({ __typeof (value) __atg12_value = (value); \
+ atomic_exchange_and_add (mem, __atg12_value) < -__atg12_value; })
#endif
#ifndef atomic_add_zero
# define atomic_add_zero(mem, value) \
- ({ __typeof (value) __aaz_value = (value); \
- atomic_exchange_and_add (mem, __aaz_value) == -__aaz_value; })
+ ({ __typeof (value) __atg13_value = (value); \
+ atomic_exchange_and_add (mem, __atg13_value) == -__atg13_value; })
#endif
#ifndef atomic_bit_test_set
# define atomic_bit_test_set(mem, bit) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = ((__typeof (*(mem))) 1 << (bit)); \
+ ({ __typeof (*(mem)) __atg14_old; \
+ __typeof (mem) __atg14_memp = (mem); \
+ __typeof (*(mem)) __atg14_mask = ((__typeof (*(mem))) 1 << (bit)); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- | __mask, \
- __oldval),\
- 0)); \
+ __atg14_old = (*__atg14_memp); \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg14_memp, \
+ __atg14_old | __atg14_mask,\
+ __atg14_old), 0)); \
\
- __oldval & __mask; })
+ __atg14_old & __atg14_mask; })
#endif
/* Atomically *mem &= mask. */
#ifndef atomic_and
# define atomic_and(mem, mask) \
do { \
- __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = (mask); \
+ __typeof (*(mem)) __atg15_old; \
+ __typeof (mem) __atg15_memp = (mem); \
+ __typeof (*(mem)) __atg15_mask = (mask); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- & __mask, \
- __oldval), \
- 0)); \
+ __atg15_old = (*__atg15_memp); \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg15_memp, \
+ __atg15_old & __atg15_mask, \
+ __atg15_old), 0)); \
} while (0)
#endif
/* Atomically *mem &= mask and return the old value of *mem. */
#ifndef atomic_and_val
# define atomic_and_val(mem, mask) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = (mask); \
+ ({ __typeof (*(mem)) __atg16_old; \
+ __typeof (mem) __atg16_memp = (mem); \
+ __typeof (*(mem)) __atg16_mask = (mask); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- & __mask, \
- __oldval),\
- 0)); \
+ __atg16_old = (*__atg16_memp); \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg16_memp, \
+ __atg16_old & __atg16_mask,\
+ __atg16_old), 0)); \
\
- __oldval; })
+ __atg16_old; })
#endif
/* Atomically *mem |= mask and return the old value of *mem. */
#ifndef atomic_or
# define atomic_or(mem, mask) \
do { \
- __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = (mask); \
+ __typeof (*(mem)) __atg17_old; \
+ __typeof (mem) __atg17_memp = (mem); \
+ __typeof (*(mem)) __atg17_mask = (mask); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- | __mask, \
- __oldval), \
- 0)); \
+ __atg17_old = (*__atg17_memp); \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg17_memp, \
+ __atg17_old | __atg17_mask, \
+ __atg17_old), 0)); \
} while (0)
#endif
#ifndef catomic_or
# define catomic_or(mem, mask) \
do { \
- __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = (mask); \
+ __typeof (*(mem)) __atg18_old; \
+ __typeof (mem) __atg18_memp = (mem); \
+ __typeof (*(mem)) __atg18_mask = (mask); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (catomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- | __mask, \
- __oldval),\
- 0)); \
+ __atg18_old = (*__atg18_memp); \
+ while (__builtin_expect \
+ (catomic_compare_and_exchange_bool_acq (__atg18_memp, \
+ __atg18_old | __atg18_mask,\
+ __atg18_old), 0)); \
} while (0)
#endif
/* Atomically *mem |= mask and return the old value of *mem. */
#ifndef atomic_or_val
# define atomic_or_val(mem, mask) \
- ({ __typeof (*(mem)) __oldval; \
- __typeof (mem) __memp = (mem); \
- __typeof (*(mem)) __mask = (mask); \
+ ({ __typeof (*(mem)) __atg19_old; \
+ __typeof (mem) __atg19_memp = (mem); \
+ __typeof (*(mem)) __atg19_mask = (mask); \
\
do \
- __oldval = (*__memp); \
- while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
- __oldval \
- | __mask, \
- __oldval),\
- 0)); \
+ __atg19_old = (*__atg19_memp); \
+ while (__builtin_expect \
+ (atomic_compare_and_exchange_bool_acq (__atg19_memp, \
+ __atg19_old | __atg19_mask,\
+ __atg19_old), 0)); \
\
- __oldval; })
+ __atg19_old; })
#endif
#ifndef atomic_full_barrier
search all bins all the time. */
maxfb = &(av->fastbins[fastbin_index(get_max_fast ())]);
#else
- maxfb = &(av->fastbins[NFASTBINS]);
+ maxfb = &(av->fastbins[NFASTBINS - 1]);
#endif
fb = &(av->fastbins[0]);
do {
+2006-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/rtld-lowlevel.h (__rtld_mrlock_lock,
+ __rtld_mrlock_unlock, __rtld_mrlock_change, __rtld_mrlock_done): Use
+ atomic_* instead of catomic_* macros.
+
2006-10-12 Ulrich Drepper <drepper@redhat.com>
[BZ #3285]
{ \
int newval = ((oldval & __RTLD_MRLOCK_RBITS) \
+ __RTLD_MRLOCK_INC); \
- int ret = catomic_compare_and_exchange_val_acq (&(lock), \
- newval, \
- oldval); \
+ int ret = atomic_compare_and_exchange_val_acq (&(lock), \
+ newval, \
+ oldval); \
if (__builtin_expect (ret == oldval, 1)) \
goto out; \
} \
} \
if ((oldval & __RTLD_MRLOCK_RWAIT) == 0) \
{ \
- catomic_or (&(lock), __RTLD_MRLOCK_RWAIT); \
+ atomic_or (&(lock), __RTLD_MRLOCK_RWAIT); \
oldval |= __RTLD_MRLOCK_RWAIT; \
} \
lll_futex_wait (lock, oldval); \
#define __rtld_mrlock_unlock(lock) \
do { \
- int oldval = catomic_exchange_and_add (&(lock), -__RTLD_MRLOCK_INC); \
+ int oldval = atomic_exchange_and_add (&(lock), -__RTLD_MRLOCK_INC); \
if (__builtin_expect ((oldval \
& (__RTLD_MRLOCK_RBITS | __RTLD_MRLOCK_WWAIT)) \
== (__RTLD_MRLOCK_INC | __RTLD_MRLOCK_WWAIT), 0)) \
for (int tries = 0; tries < __RTLD_MRLOCK_TRIES; ++tries) \
{ \
oldval = lock; \
- while (__builtin_expect ((oldval & __RTLD_MRLOCK_RBITS) == 0, 1))\
+ while (__builtin_expect ((oldval & __RTLD_MRLOCK_RBITS) == 0, 1)) \
{ \
int newval = ((oldval & __RTLD_MRLOCK_RWAIT) \
+ __RTLD_MRLOCK_WRITER); \
- int ret = catomic_compare_and_exchange_val_acq (&(lock), \
+ int ret = atomic_compare_and_exchange_val_acq (&(lock), \
newval, \
oldval); \
if (__builtin_expect (ret == oldval, 1)) \
} \
atomic_delay (); \
} \
- catomic_or (&(lock), __RTLD_MRLOCK_WWAIT); \
+ atomic_or (&(lock), __RTLD_MRLOCK_WWAIT); \
oldval |= __RTLD_MRLOCK_WWAIT; \
lll_futex_wait (lock, oldval); \
} \
#define __rtld_mrlock_done(lock) \
do { \
- int oldval = catomic_exchange_and_add (&(lock), -__RTLD_MRLOCK_WRITER); \
+ int oldval = atomic_exchange_and_add (&(lock), -__RTLD_MRLOCK_WRITER); \
if (__builtin_expect ((oldval & __RTLD_MRLOCK_RWAIT) != 0, 0)) \
lll_futex_wake (&(lock), 0x7fffffff); \
} while (0)
-# Copyright (C) 1994-2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 1994-2004, 2005, 2006 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
include ../Makeconfig
-tests = tst-xdrmem
+tests = tst-xdrmem tst-xdrmem2
xtests := tst-getmyaddr
ifeq ($(have-thread-library),yes)
--- /dev/null
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <rpc/rpc.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+ XDR xdrs;
+ void *buf;
+ size_t ps = sysconf (_SC_PAGESIZE);
+ uintptr_t half = -1;
+ int v_int;
+ u_short v_u_short;
+
+ half = (half >> 1) & ~(uintptr_t) (ps - 1);
+ buf = mmap ((void *) half, 2 * ps, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON, -1, 0);
+ if (buf == MAP_FAILED || buf != (void *) half)
+ {
+ puts ("Couldn't mmap 2 pages in the middle of address space");
+ return 0;
+ }
+
+ xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_ENCODE);
+
+#define T(type, val) \
+ v_##type = val; \
+ if (! xdr_##type (&xdrs, &v_##type)) \
+ { \
+ puts ("encoding of " #type \
+ " " #val " failed"); \
+ return 1; \
+ }
+
+ T(int, 127)
+
+ u_int pos = xdr_getpos (&xdrs);
+
+ T(u_short, 31)
+
+ if (! xdr_setpos (&xdrs, pos))
+ {
+ puts ("xdr_setpos during encoding failed");
+ return 1;
+ }
+
+ T(u_short, 36)
+
+#undef T
+
+ xdr_destroy (&xdrs);
+
+ xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_DECODE);
+
+#define T(type, val) \
+ v_##type = 0x15; \
+ if (! xdr_##type (&xdrs, &v_##type)) \
+ { \
+ puts ("decoding of " #type \
+ " " #val " failed"); \
+ return 1; \
+ } \
+ if (v_##type != val) \
+ { \
+ puts ("decoded value differs, " \
+ "type " #type " " #val); \
+ return 1; \
+ }
+
+ T(int, 127)
+
+ pos = xdr_getpos (&xdrs);
+
+ T(u_short, 36)
+
+ if (! xdr_setpos (&xdrs, pos))
+ {
+ puts ("xdr_setpos during encoding failed");
+ return 1;
+ }
+
+ T(u_short, 36)
+
+#undef T
+
+ xdr_destroy (&xdrs);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
{
caddr_t newaddr = xdrs->x_base + pos;
caddr_t lastaddr = xdrs->x_private + xdrs->x_handy;
+ size_t handy = lastaddr - newaddr;
- if ((long) newaddr > (long) lastaddr
- || (UINT_MAX < LONG_MAX
- && (long) UINT_MAX < (long) lastaddr - (long) newaddr))
+ if (newaddr > lastaddr
+ || newaddr < xdrs->x_base
+ || handy != (u_int) handy)
return FALSE;
+
xdrs->x_private = newaddr;
- xdrs->x_handy = (long) lastaddr - (long) newaddr;
+ xdrs->x_handy = (u_int) handy;
return TRUE;
}
"cmpl $0, %%gs:%P2\n\tje 0f\n\tlock\n0:\t"
#define catomic_decrement(mem) \
- __arch_increment_body (__arch_decrement_cprefix, __arch_c, mem)
+ __arch_decrement_body (__arch_decrement_cprefix, __arch_c, mem)
#define atomic_decrement_and_test(mem) \
({ __typeof (*mem) ret; \
__asm __volatile (LOCK_PREFIX "cmpxchgq %q2, %1" \
: "=a" (ret), "=m" (*mem) \
- : "r" ((long) (newval)), "m" (*mem), \
- "0" ((long) (oldval))); \
+ : "r" ((long int) (newval)), "m" (*mem), \
+ "0" ((long int) (oldval))); \
ret; })
#define __arch_c_compare_and_exchange_val_64_acq(mem, newval, oldval) \
({ __typeof (*mem) ret; \
- __asm __volatile ("cmpl $0, %%fs:%P5\n\t" \
- "je 0f\n\t" \
- "lock\n" \
+ __asm __volatile ("cmpl $0, %%fs:%P5\n\t" \
+ "je 0f\n\t" \
+ "lock\n" \
"0:\tcmpxchgq %q2, %1" \
: "=a" (ret), "=m" (*mem) \
- : "q" (newval), "m" (*mem), "0" (oldval), \
+ : "q" ((long int) (newval)), "m" (*mem), \
+ "0" ((long int)oldval), \
"i" (offsetof (tcbhead_t, multiple_threads))); \
ret; })
"cmpl $0, %%fs:%P2\n\tje 0f\n\tlock\n0:\t"
#define catomic_decrement(mem) \
- __arch_increment_body (__arch_decrement_cprefix, mem)
+ __arch_decrement_body (__arch_decrement_cprefix, mem)
#define atomic_decrement_and_test(mem) \
projects / platform / upstream / glibc.git / commitdiff