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* sysdeps/arm/nptl/tls.h (THREAD_GSCOPE_RESET_FLAG): Use 

lll_private_futex_wake.
	* sysdeps/unix/sysv/linux/arm/check_pf.c: Update from generic version.
	* sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind-forcedunwind.c
	(pthread_cancel_init): Add noinline and barriers.
	* sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.c
	(__lll_timedlock_wait): Update call to lll_futex_timed_wait.
	(__lll_timedwait_tid): Likewise.
	* sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h (LLL_PRIVATE,
	LLL_SHARED): Define.
	(lll_futex_wait): Use lll_futex_timed_wait.
	(lll_futex_timed_wait, lll_futex_wake, lll_futex_wake_unlock): Take a
	PRIVATE argument.
	(lll_private_futex_wait, lll_private_futex_timed_wait,
	lll_private_futex_wake): New.
	(lll_robust_mutex_dead,  __lll_mutex_lock, __lll_mutex_cond_lock,
	__lll_mutex_unlock, __lll_robust_mutex_unlock,
	__lll_mutex_unlock_force, lll_wait_tid): Update calls.
	* sysdeps/unix/sysv/linux/arm/nptl/pthread_once.c (clear_once_control,
	__pthread_once): Use private futexes.
	* sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
	(pthread_cancel_init): Add noinline and barriers.

	* sysdeps/unix/sysv/aix/bits/fcntl.h,
	sysdeps/unix/sysv/linux/am33/bits/fcntl.h,
	sysdeps/unix/sysv/linux/arm/bits/fcntl.h,
	sysdeps/unix/sysv/linux/cris/bits/fcntl.h,
	sysdeps/unix/sysv/linux/m68k/bits/fcntl.h,
	sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Comment fix.

	* sysdeps/unix/sysv/linux/arm/nptl/bits/semaphore.h (SEM_VALUE_MAX):
	Delete.
	* sysdeps/unix/sysv/linux/mips/nptl/bits/semaphore.h (SEM_VALUE_MAX):
	Delete.
This commit is contained in:
Daniel Jacobowitz 2007-07-10 13:35:30 +00:00
parent e8955bf409
commit 8323b1abc6
21 changed files with 256 additions and 75 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ChangeLog.aix
View File

@ -1,3 +1,7 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/aix/bits/fcntl.h: Comment fix.
2005-12-27 Roland McGrath <roland@redhat.com>
* sysdeps/unix/sysv/aix/bits/setjmp.h (_JMPBUF_UNWINDS): Take third

4
ChangeLog.am33
View File

@ -1,3 +1,7 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/am33/bits/fcntl.h: Comment fix.
2006-01-12 Roland McGrath <roland@redhat.com>
* sysdeps/am33/jmpbuf-unwind.h: Include <jmpbuf-offsets.h>.

30
ChangeLog.arm
View File

@ -1,3 +1,33 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/arm/nptl/tls.h (THREAD_GSCOPE_RESET_FLAG): Use
lll_private_futex_wake.
* sysdeps/unix/sysv/linux/arm/check_pf.c: Update from generic version.
* sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind-forcedunwind.c
(pthread_cancel_init): Add noinline and barriers.
* sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.c
(__lll_timedlock_wait): Update call to lll_futex_timed_wait.
(__lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h (LLL_PRIVATE,
LLL_SHARED): Define.
(lll_futex_wait): Use lll_futex_timed_wait.
(lll_futex_timed_wait, lll_futex_wake, lll_futex_wake_unlock): Take a
PRIVATE argument.
(lll_private_futex_wait, lll_private_futex_timed_wait,
lll_private_futex_wake): New.
(lll_robust_mutex_dead, __lll_mutex_lock, __lll_mutex_cond_lock,
__lll_mutex_unlock, __lll_robust_mutex_unlock,
__lll_mutex_unlock_force, lll_wait_tid): Update calls.
* sysdeps/unix/sysv/linux/arm/nptl/pthread_once.c (clear_once_control,
__pthread_once): Use private futexes.
* sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
(pthread_cancel_init): Add noinline and barriers.
* sysdeps/unix/sysv/linux/arm/bits/fcntl.h: Comment fix.
* sysdeps/unix/sysv/linux/arm/nptl/bits/semaphore.h (SEM_VALUE_MAX):
Delete.
2007-06-06 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/arm/nptl/tls.h (THREAD_GSCOPE_FLAG_UNUSED,

4
ChangeLog.cris
View File

@ -1,3 +1,7 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/cris/bits/fcntl.h: Comment fix.
2005-12-27 Roland McGrath <roland@redhat.com>
* sysdeps/cris/bits/setjmp.h (_JMPBUF_UNWINDS): Take third argument

4
ChangeLog.m68k
View File

@ -1,3 +1,7 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/m68k/bits/fcntl.h: Comment fix.
2006-11-28 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/m68k/sysdep.h (DOARGS_6, _DOARGS_6)

7
ChangeLog.mips
View File

@ -1,3 +1,10 @@
2007-07-10 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Comment fix.
* sysdeps/unix/sysv/linux/mips/nptl/bits/semaphore.h (SEM_VALUE_MAX):
Delete.
2007-06-07 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (ARGIFY): New.

2
sysdeps/arm/nptl/tls.h
View File

@ -142,7 +142,7 @@ typedef struct
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1); \
lll_private_futex_wake (&THREAD_SELF->header.gscope_flag, 1); \
} \
while (0)
#define THREAD_GSCOPE_SET_FLAG() \

2
sysdeps/unix/sysv/aix/bits/fcntl.h
View File

@ -79,7 +79,7 @@
# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

2
sysdeps/unix/sysv/linux/am33/bits/fcntl.h
View File

@ -94,7 +94,7 @@
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

2
sysdeps/unix/sysv/linux/arm/bits/fcntl.h
View File

@ -98,7 +98,7 @@
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

124
sysdeps/unix/sysv/linux/arm/check_pf.c
View File

@ -1,5 +1,5 @@
/* Determine protocol families for which interfaces exist. ARM Linux version.
Copyright (C) 2003, 2006 Free Software Foundation, Inc.
/* Determine protocol families for which interfaces exist. Linux version.
Copyright (C) 2003, 2006, 2007 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
@ -69,17 +69,38 @@ make_request (int fd, pid_t pid, bool *seen_ipv4, bool *seen_ipv6,
memset (&nladdr, '\0', sizeof (nladdr));
nladdr.nl_family = AF_NETLINK;
#ifdef PAGE_SIZE
/* Help the compiler optimize out the malloc call if PAGE_SIZE
is constant and smaller or equal to PTHREAD_STACK_MIN/4. */
const size_t buf_size = PAGE_SIZE;
#else
const size_t buf_size = __getpagesize ();
#endif
bool use_malloc = false;
char *buf;
if (__libc_use_alloca (buf_size))
buf = alloca (buf_size);
else
{
buf = malloc (buf_size);
if (buf != NULL)
use_malloc = true;
else
goto out_fail;
}
struct iovec iov = { buf, buf_size };
if (TEMP_FAILURE_RETRY (__sendto (fd, (void *) &req, sizeof (req), 0,
(struct sockaddr *) &nladdr,
sizeof (nladdr))) < 0)
return -1;
goto out_fail;
*seen_ipv4 = false;
*seen_ipv6 = false;
bool done = false;
char buf[4096];
struct iovec iov = { buf, sizeof (buf) };
struct in6ailist
{
struct in6addrinfo info;
@ -99,10 +120,10 @@ make_request (int fd, pid_t pid, bool *seen_ipv4, bool *seen_ipv6,
ssize_t read_len = TEMP_FAILURE_RETRY (__recvmsg (fd, &msg, 0));
if (read_len < 0)
return -1;
goto out_fail;
if (msg.msg_flags & MSG_TRUNC)
return -1;
goto out_fail;
struct nlmsghdr *nlmh;
for (nlmh = (struct nlmsghdr *) buf;
@ -116,40 +137,72 @@ make_request (int fd, pid_t pid, bool *seen_ipv4, bool *seen_ipv6,
if (nlmh->nlmsg_type == RTM_NEWADDR)
{
struct ifaddrmsg *ifam = (struct ifaddrmsg *) NLMSG_DATA (nlmh);
struct rtattr *rta = IFA_RTA (ifam);
size_t len = nlmh->nlmsg_len - NLMSG_LENGTH (sizeof (*ifam));
switch (ifam->ifa_family)
{
const void *local;
const void *address;
case AF_INET:
*seen_ipv4 = true;
local = NULL;
address = NULL;
while (RTA_OK (rta, len))
{
switch (rta->rta_type)
{
case IFA_LOCAL:
local = RTA_DATA (rta);
break;
case IFA_ADDRESS:
address = RTA_DATA (rta);
goto out_v4;
}
rta = RTA_NEXT (rta, len);
}
if (local != NULL)
{
out_v4:
if (*(const in_addr_t *) (address ?: local)
!= htonl (INADDR_LOOPBACK))
*seen_ipv4 = true;
}
break;
case AF_INET6:
*seen_ipv6 = true;
local = NULL;
address = NULL;
while (RTA_OK (rta, len))
{
switch (rta->rta_type)
{
case IFA_LOCAL:
local = RTA_DATA (rta);
break;
case IFA_ADDRESS:
address = RTA_DATA (rta);
goto out_v6;
}
rta = RTA_NEXT (rta, len);
}
if (local != NULL)
{
out_v6:
if (!IN6_IS_ADDR_LOOPBACK (address ?: local))
*seen_ipv6 = true;
}
if (ifam->ifa_flags & (IFA_F_DEPRECATED
| IFA_F_TEMPORARY
| IFA_F_HOMEADDRESS))
{
struct rtattr *rta = IFA_RTA (ifam);
size_t len = (nlmh->nlmsg_len
- NLMSG_LENGTH (sizeof (*ifam)));
void *local = NULL;
void *address = NULL;
while (RTA_OK (rta, len))
{
switch (rta->rta_type)
{
case IFA_LOCAL:
local = RTA_DATA (rta);
break;
case IFA_ADDRESS:
address = RTA_DATA (rta);
break;
}
rta = RTA_NEXT (rta, len);
}
struct in6ailist *newp = alloca (sizeof (*newp));
newp->info.flags = (((ifam->ifa_flags & IFA_F_DEPRECATED)
? in6ai_deprecated : 0)
@ -180,11 +233,11 @@ make_request (int fd, pid_t pid, bool *seen_ipv4, bool *seen_ipv6,
close_not_cancel_no_status (fd);
if (in6ailist != NULL)
if (*seen_ipv6 && in6ailist != NULL)
{
*in6ai = malloc (in6ailistlen * sizeof (**in6ai));
if (*in6ai == NULL)
return -1;
goto out_fail;
*in6ailen = in6ailistlen;
@ -196,7 +249,14 @@ make_request (int fd, pid_t pid, bool *seen_ipv4, bool *seen_ipv6,
while (in6ailist != NULL);
}
if (use_malloc)
free (buf);
return 0;
out_fail:
if (use_malloc)
free (buf);
return -1;
}

16
sysdeps/unix/sysv/linux/arm/eabi/nptl/unwind-forcedunwind.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2003, 2005 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2005, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>.
@ -30,13 +30,18 @@ static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
static _Unwind_Word (*libgcc_s_getcfa) (struct _Unwind_Context *);
void
__attribute_noinline__
pthread_cancel_init (void)
{
void *resume, *personality, *forcedunwind, *getcfa;
void *handle;
if (__builtin_expect (libgcc_s_getcfa != NULL, 1))
return;
{
/* Force gcc to reload all values. */
asm volatile ("" ::: "memory");
return;
}
handle = __libc_dlopen ("libgcc_s.so.1");
@ -55,6 +60,10 @@ pthread_cancel_init (void)
libgcc_s_resume = resume;
libgcc_s_personality = personality;
libgcc_s_forcedunwind = forcedunwind;
/* Make sure libgcc_s_getcfa is written last. Otherwise,
pthread_cancel_init might return early even when the pointer the
caller is interested in is not initialized yet. */
atomic_write_barrier ();
libgcc_s_getcfa = getcfa;
}
@ -92,6 +101,7 @@ __gcc_personality_v0 (_Unwind_State state,
{
if (__builtin_expect (libgcc_s_personality == NULL, 0))
pthread_cancel_init ();
return libgcc_s_personality (state, ue_header, context);
}
@ -101,6 +111,7 @@ _Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
{
if (__builtin_expect (libgcc_s_forcedunwind == NULL, 0))
pthread_cancel_init ();
return libgcc_s_forcedunwind (exc, stop, stop_argument);
}
@ -109,5 +120,6 @@ _Unwind_GetCFA (struct _Unwind_Context *context)
{
if (__builtin_expect (libgcc_s_getcfa == NULL, 0))
pthread_cancel_init ();
return libgcc_s_getcfa (context);
}

5
sysdeps/unix/sysv/linux/arm/nptl/bits/semaphore.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2005 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2005, 2007 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
@ -27,9 +27,6 @@
/* Value returned if `sem_open' failed. */
#define SEM_FAILED ((sem_t *) 0)
/* Maximum value the semaphore can have. */
#define SEM_VALUE_MAX ((int) ((~0u) >> 1))
typedef union
{

6
sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.c
View File

@ -55,7 +55,8 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime)
if (rt.tv_sec < 0)
return ETIMEDOUT;
lll_futex_timed_wait (futex, 2, &rt);
// XYZ: Lost the lock to check whether it was private.
lll_futex_timed_wait (futex, 2, &rt, LLL_SHARED);
}
while (atomic_exchange_acq (futex, 2) != 0);
@ -96,7 +97,8 @@ __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
return ETIMEDOUT;
/* Wait until thread terminates. */
if (lll_futex_timed_wait (tidp, tid, &rt) == -ETIMEDOUT)
// XYZ: Lost the lock to check whether it was private.
if (lll_futex_timed_wait (tidp, tid, &rt, LLL_SHARED) == -ETIMEDOUT)
return ETIMEDOUT;
}

83
sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h
View File

@ -12,7 +12,7 @@
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 Libr \ary; if not, write to the Free
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. */
@ -36,19 +36,19 @@
#define FUTEX_TRYLOCK_PI 8
#define FUTEX_PRIVATE_FLAG 128
/* Values for 'private' parameter of locking macros. Yes, the
definition seems to be backwards. But it is not. The bit will be
reversed before passing to the system call. */
#define LLL_PRIVATE 0
#define LLL_SHARED FUTEX_PRIVATE_FLAG
/* Initializer for compatibility lock. */
#define LLL_MUTEX_LOCK_INITIALIZER (0)
#define lll_futex_wait(futexp, val) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAIT, (val), 0); \
__ret; \
})
#define lll_futex_wait(futexp, val, private) \
lll_futex_timed_wait(futexp, val, NULL, private)
#define lll_futex_timed_wait(futexp, val, timespec) \
#define lll_futex_timed_wait(futexp, val, timespec, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
@ -57,7 +57,7 @@
__ret; \
})
#define lll_futex_wake(futexp, nr) \
#define lll_futex_wake(futexp, nr, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
@ -66,12 +66,57 @@
__ret; \
})
#define lll_private_futex_wait(futexp, val) \
lll_private_futex_timed_wait(futexp, val, NULL)
#ifdef __ASSUME_PRIVATE_FUTEX
#define lll_private_futex_timed_wait(futexp, val, timespec) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAIT | FUTEX_PRIVATE_FLAG, \
(val), (timespec)); \
__ret; \
})
#define lll_private_futex_wake(futexp, nr) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAKE | FUTEX_PRIVATE_FLAG, \
(nr), (0)); \
__ret; \
})
#else
#define lll_private_futex_timed_wait(futexp, val, timespec) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret, __op; \
__op = FUTEX_WAIT | THREAD_GETMEM (THREAD_SELF, header.private_futex); \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), __op, (val), (timespec)); \
__ret; \
})
#define lll_private_futex_wake(futexp, nr) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret, __op; \
__op = FUTEX_WAKE | THREAD_GETMEM (THREAD_SELF, header.private_futex); \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), __op, (nr), 0); \
__ret; \
})
#endif
#define lll_robust_mutex_dead(futexv) \
do \
{ \
int *__futexp = &(futexv); \
atomic_or (__futexp, FUTEX_OWNER_DIED); \
lll_futex_wake (__futexp, 1); \
lll_futex_wake (__futexp, 1, 0); \
} \
while (0)
@ -88,7 +133,7 @@
/* Returns non-zero if error happened, zero if success. */
#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \
#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
@ -156,7 +201,7 @@ __lll_mutex_lock (int *futex)
if (__builtin_expect (val != 0, 0))
{
while (atomic_exchange_acq (futex, 2) != 0)
lll_futex_wait (futex, 2);
lll_futex_wait (futex, 2, 0);
}
}
#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
@ -182,7 +227,7 @@ __lll_mutex_cond_lock (int *futex)
if (__builtin_expect (val != 0, 0))
{
while (atomic_exchange_acq (futex, 2) != 0)
lll_futex_wait (futex, 2);
lll_futex_wait (futex, 2, 0);
}
}
#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
@ -229,7 +274,7 @@ __lll_mutex_unlock (int *futex)
{
int val = atomic_exchange_rel (futex, 0);
if (__builtin_expect (val > 1, 0))
lll_futex_wake (futex, 1);
lll_futex_wake (futex, 1, 0);
}
#define lll_mutex_unlock(futex) __lll_mutex_unlock(&(futex))
@ -239,7 +284,7 @@ __lll_robust_mutex_unlock (int *futex, int mask)
{
int val = atomic_exchange_rel (futex, 0);
if (__builtin_expect (val & mask, 0))
lll_futex_wake (futex, 1);
lll_futex_wake (futex, 1, 0);
}
#define lll_robust_mutex_unlock(futex) \
__lll_robust_mutex_unlock(&(futex), FUTEX_WAITERS)
@ -249,7 +294,7 @@ static inline void __attribute__ ((always_inline))
__lll_mutex_unlock_force (int *futex)
{
(void) atomic_exchange_rel (futex, 0);
lll_futex_wake (futex, 1);
lll_futex_wake (futex, 1, 0);
}
#define lll_mutex_unlock_force(futex) __lll_mutex_unlock_force(&(futex))
@ -286,7 +331,7 @@ typedef int lll_lock_t;
do { \
__typeof (tid) __tid; \
while ((__tid = (tid)) != 0) \
lll_futex_wait (&(tid), __tid); \
lll_futex_wait (&(tid), __tid, 0);\
} while (0)
extern int __lll_timedwait_tid (int *, const struct timespec *)

6
sysdeps/unix/sysv/linux/arm/nptl/pthread_once.c
View File

@ -27,7 +27,7 @@ clear_once_control (void *arg)
pthread_once_t *once_control = (pthread_once_t *) arg;
*once_control = 0;
lll_futex_wake (once_control, INT_MAX);
lll_private_futex_wake (once_control, INT_MAX);
}
int
@ -66,7 +66,7 @@ __pthread_once (pthread_once_t *once_control, void (*init_routine) (void))
break;
/* Same generation, some other thread was faster. Wait. */
lll_futex_wait (once_control, oldval);
lll_private_futex_wait (once_control, oldval);
}
/* This thread is the first here. Do the initialization.
@ -82,7 +82,7 @@ __pthread_once (pthread_once_t *once_control, void (*init_routine) (void))
*once_control = __fork_generation | 2;
/* Wake up all other threads. */
lll_futex_wake (once_control, INT_MAX);
lll_private_futex_wake (once_control, INT_MAX);
return 0;
}

19
sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
View File

@ -33,6 +33,7 @@ static void (*libgcc_s_sjlj_register) (struct SjLj_Function_Context *);
static void (*libgcc_s_sjlj_unregister) (struct SjLj_Function_Context *);
void
__attribute_noinline__
pthread_cancel_init (void)
{
void *resume, *personality, *forcedunwind, *getcfa;
@ -40,7 +41,11 @@ pthread_cancel_init (void)
void *sjlj_register, *sjlj_unregister;
if (__builtin_expect (libgcc_s_getcfa != NULL, 1))
return;
{
/* Force gcc to reload all values. */
asm volatile ("" ::: "memory");
return;
}
handle = __libc_dlopen ("libgcc_s.so.1");
@ -58,9 +63,13 @@ pthread_cancel_init (void)
libgcc_s_resume = resume;
libgcc_s_personality = personality;
libgcc_s_forcedunwind = forcedunwind;
libgcc_s_getcfa = getcfa;
libgcc_s_sjlj_register = sjlj_register;
libgcc_s_sjlj_unregister = sjlj_unregister;
/* Make sure libgcc_s_getcfa is written last. Otherwise,
pthread_cancel_init might return early even when the pointer the
caller is interested in is not initialized yet. */
atomic_write_barrier ();
libgcc_s_getcfa = getcfa;
}
void
@ -68,6 +77,7 @@ _Unwind_Resume (struct _Unwind_Exception *exc)
{
if (__builtin_expect (libgcc_s_resume == NULL, 0))
pthread_cancel_init ();
libgcc_s_resume (exc);
}
@ -79,6 +89,7 @@ __gcc_personality_v0 (int version, _Unwind_Action actions,
{
if (__builtin_expect (libgcc_s_personality == NULL, 0))
pthread_cancel_init ();
return libgcc_s_personality (version, actions, exception_class,
ue_header, context);
}
@ -89,6 +100,7 @@ _Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
{
if (__builtin_expect (libgcc_s_forcedunwind == NULL, 0))
pthread_cancel_init ();
return libgcc_s_forcedunwind (exc, stop, stop_argument);
}
@ -97,6 +109,7 @@ _Unwind_GetCFA (struct _Unwind_Context *context)
{
if (__builtin_expect (libgcc_s_getcfa == NULL, 0))
pthread_cancel_init ();
return libgcc_s_getcfa (context);
}
@ -105,6 +118,7 @@ _Unwind_SjLj_Register (struct SjLj_Function_Context *fc)
{
if (__builtin_expect (libgcc_s_sjlj_register == NULL, 0))
pthread_cancel_init ();
libgcc_s_sjlj_register (fc);
}
@ -113,5 +127,6 @@ _Unwind_SjLj_Unregister (struct SjLj_Function_Context *fc)
{
if (__builtin_expect (libgcc_s_sjlj_unregister == NULL, 0))
pthread_cancel_init ();
libgcc_s_sjlj_unregister (fc);
}

2
sysdeps/unix/sysv/linux/cris/bits/fcntl.h
View File

@ -96,7 +96,7 @@
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

2
sysdeps/unix/sysv/linux/m68k/bits/fcntl.h
View File

@ -95,7 +95,7 @@
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

2
sysdeps/unix/sysv/linux/mips/bits/fcntl.h
View File

@ -101,7 +101,7 @@
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
/* For F_[GET|SET]FD. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */

5
sysdeps/unix/sysv/linux/mips/nptl/bits/semaphore.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2005 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2005, 2007 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
@ -29,9 +29,6 @@
/* Value returned if `sem_open' failed. */
#define SEM_FAILED ((sem_t *) 0)
/* Maximum value the semaphore can have. */
#define SEM_VALUE_MAX (2147483647)
typedef union
{