PowerPC port contributed by Paul Mackerras <paulus@samba.org>.
* sysdeps/pthread/pthread_spin_init.c: New file.
* sysdeps/pthread/pthread_spin_unlock.c: New file.
* sysdeps/powerpc/Makefile: New file.
* sysdeps/powerpc/pthread_spin_lock.c: New file.
* sysdeps/powerpc/pthread_spin_trylock.c: New file.
* sysdeps/powerpc/pthreaddef.h: New file.
* sysdeps/powerpc/tcb-offsets.sym: New file.
* sysdeps/powerpc/td_ta_map_lwp2thr.c: New file.
* sysdeps/powerpc/tls.h: New file.
* sysdeps/powerpc/bits/atomic.h: New file.
* sysdeps/unix/sysv/linux/libc-lowlevelmutex.c: New file.
* sysdeps/unix/sysv/linux/libc-lowlevellock.c: New file.
* sysdeps/unix/sysv/linux/lowlevellock.c: New file.
* sysdeps/unix/sysv/linux/sem_post.c: New file.
* sysdeps/unix/sysv/linux/sem_timedwait.c: New file.
* sysdeps/unix/sysv/linux/sem_trywait.c: New file.
* sysdeps/unix/sysv/linux/powerpc/Makefile: New file.
* sysdeps/unix/sysv/linux/powerpc/createthread.c: New file.
* sysdeps/unix/sysv/linux/powerpc/fork.c: New file.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: New file.
* sysdeps/unix/sysv/linux/powerpc/pt-vfork.S: New file.
* sysdeps/unix/sysv/linux/powerpc/pthread_once.c: New file.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: New file.
* sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: New file.
--- /dev/null
+# Copyright (C) 2003 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
+# 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.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
--- /dev/null
+/* Atomic operations. PowerPC version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <stdint.h>
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+
+#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+ (abort (), 0)
+
+#ifdef UP
+#define __ARCH_ACQ_INSTR ""
+#define __ARCH_REL_INSTR ""
+#else
+#define __ARCH_ACQ_INSTR "isync"
+#define __ARCH_REL_INSTR "sync"
+#endif
+
+/*
+ * XXX At present these have both acquire and release semantics.
+ * Ultimately we should do separate _acq and _rel versions.
+ */
+
+/*
+ * XXX this may not work properly on 64-bit if the register
+ * containing oldval has the high half non-zero for some reason.
+ */
+#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
+({ \
+ unsigned int __tmp; \
+ __asm __volatile (__ARCH_REL_INSTR "\n" \
+ "1: lwarx %0,0,%1\n" \
+ " subf. %0,%2,%0\n" \
+ " bne 2f\n" \
+ " stwcx. %3,0,%1\n" \
+ " bne- 1b\n" \
+ "2: " __ARCH_ACQ_INSTR \
+ : "=&r" (__tmp) \
+ : "r" (mem), "r" (oldval), "r" (newval) \
+ : "cr0", "memory"); \
+ __tmp != 0; \
+})
+
+#ifdef __powerpc64__
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+({ \
+ unsigned long __tmp; \
+ __asm __volatile (__ARCH_REL_INSTR "\n" \
+ "1: ldarx %0,0,%1\n" \
+ " subf. %0,%2,%0\n" \
+ " bne 2f\n" \
+ " stdcx. %3,0,%1\n" \
+ " bne- 1b\n" \
+ "2: " __ARCH_ACQ_INSTR \
+ : "=&r" (__tmp) \
+ : "r" (mem), "r" (oldval), "r" (newval) \
+ : "cr0", "memory"); \
+ __tmp != 0; \
+})
+
+#else /* powerpc32 */
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+ (abort (), 0)
+#endif
+
+#define atomic_full_barrier() __asm ("sync" ::: "memory")
+#ifdef __powerpc64__
+#define atomic_read_barrier() __asm ("lwsync" ::: "memory")
+#else
+#define atomic_read_barrier() __asm ("sync" ::: "memory")
+#endif
+#define atomic_write_barrier() __asm ("eieio" ::: "memory")
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 "pthreadP.h"
+
+int
+pthread_spin_lock (lock)
+ pthread_spinlock_t *lock;
+{
+ unsigned int __tmp;
+
+ asm volatile (
+ "1: lwarx %0,0,%1\n"
+ " cmpwi 0,%0,0\n"
+ " bne- 2f\n"
+ " stwcx. %2,0,%1\n"
+ " bne- 2f\n"
+ " isync\n"
+ " .subsection 1\n"
+ "2: lwzx %0,0,%1\n"
+ " cmpwi 0,%0,0\n"
+ " bne 2b\n"
+ " b 1b\n"
+ " .previous"
+ : "=&r" (__tmp)
+ : "r" (lock), "r" (1)
+ : "cr0", "memory");
+ return 0;
+}
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (lock)
+ pthread_spinlock_t *lock;
+{
+ unsigned int old;
+ int err = EBUSY;
+
+ asm ("1: lwarx %0,0,%2\n"
+ " cmpwi 0,%0,0\n"
+ " bne 2f\n"
+ " stwcx. %3,0,%2\n"
+ " bne- 1b\n"
+ " li %1,0\n"
+ " isync\n"
+ "2: "
+ : "=&r" (old), "=&r" (err)
+ : "r" (lock), "r" (1), "1" (err)
+ : "cr0", "memory");
+
+ return err;
+}
--- /dev/null
+/* Copyright (C) 2003 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
+ 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. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning. The ABI requires 16
+ bytes (for both 32-bit and 64-bit PowerPC). */
+#define STACK_ALIGN 16
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 4096
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 16
+
+/* The signal used for asynchronous cancelation. */
+#define SIGCANCEL __SIGRTMIN
+
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME __builtin_frame_address (0)
+
+
+/* XXX Until we have a better place keep the definitions here. */
+
+/* While there is no such syscall. */
+#define __exit_thread_inline(val) \
+ INLINE_SYSCALL (exit, 1, (val))
--- /dev/null
+#include <sysdep.h>
+#include <tls.h>
+
+--
+
+-- Abuse tls.h macros to derive offsets relative to the thread register.
+# undef __thread_register
+# define __thread_register ((void *) 0)
+# define thread_offsetof(mem) ((void *) &THREAD_SELF->mem - (void *) 0)
+
+#if TLS_MULTIPLE_THREADS_IN_TCB
+MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
+#endif
--- /dev/null
+/* Which thread is running on an LWP? PowerPC version.
+ Copyright (C) 2003 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
+ 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 "thread_dbP.h"
+#include <tls.h>
+
+
+td_err_e
+td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
+{
+ LOG ("td_ta_map_lwp2thr");
+
+ /* Test whether the TA parameter is ok. */
+ if (! ta_ok (ta))
+ return TD_BADTA;
+
+ prgregset_t regs;
+ if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
+ return TD_ERR;
+
+ th->th_unique = ((void *) regs[PT_THREAD_POINTER]
+ - TLS_TCB_OFFSET - TLS_TCB_SIZE - TLS_PRE_TCB_SIZE);
+
+ /* Found it. Now complete the `td_thrhandle_t' object. */
+ th->th_ta_p = (td_thragent_t *) ta;
+
+ return TD_OK;
+}
--- /dev/null
+/* Definition for thread-local data handling. NPTL/PowerPC version.
+ Copyright (C) 2003 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
+ 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. */
+
+#ifndef _TLS_H
+#define _TLS_H 1
+
+# include <dl-sysdep.h>
+
+#ifndef __ASSEMBLER__
+# include <stddef.h>
+# include <stdint.h>
+
+/* Type for the dtv. */
+typedef union dtv
+{
+ size_t counter;
+ void *pointer;
+} dtv_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+
+/* We require TLS support in the tools. */
+#ifndef HAVE_TLS_SUPPORT
+# error "TLS support is required."
+#endif
+
+/* Signal that TLS support is available. */
+# define USE_TLS 1
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information. */
+# include <sysdep.h>
+
+/* The TP points to the start of the thread blocks. */
+# define TLS_DTV_AT_TP 1
+
+/* For 32-bit, we use the multiple_threads field in the pthread struct */
+#ifndef __powerpc64__
+# define TLS_MULTIPLE_THREADS_IN_TCB 1
+#endif
+
+/* Get the thread descriptor definition. */
+# include <nptl/descr.h>
+
+/* This layout is actually wholly private and not affected by the ABI.
+ Nor does it overlap the pthread data structure, so we need nothing
+ extra here at all. */
+typedef struct
+{
+ dtv_t *dtv;
+} tcbhead_t;
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB. */
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size we need before TCB. */
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
+
+/* XXX if __alignof__ (struct pthread) > __alignof (tcbhead_t)
+ we could be in trouble. -- paulus */
+
+# ifndef __powerpc64__
+/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
+register void *__thread_register __asm__ ("r2");
+# define PT_THREAD_POINTER PT_R2
+# else
+/* Register r13 (tp) is reserved by the ABI as "thread pointer". */
+register void *__thread_register __asm__ ("r13");
+# define PT_THREAD_POINTER PT_R13
+# endif
+
+/* The following assumes that TP (R2 or R13) points to the end of the
+ TCB + 0x7000 (per the ABI). This implies that TCB address is
+ TP-(TLS_TCB_SIZE + 0x7000). As we define TLS_DTV_AT_TP we can
+ assume that the pthread struct is allocated immediately ahead of the
+ TCB. This implies that the pthread_descr address is
+ TP-(TLS_PRE_TCB_SIZE + TLS_TCB_SIZE + 0x7000). */
+# define TLS_TCB_OFFSET 0x7000
+
+/* Install the dtv pointer. The pointer passed is to the element with
+ index -1 which contain the length. */
+# define INSTALL_DTV(tcbp, dtvp) \
+ ((tcbhead_t *) (tcbp))->dtv = dtvp + 1
+
+/* Install new dtv for current thread. */
+# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv))
+
+/* Return dtv of given thread descriptor. */
+# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))->dtv)
+
+/* Code to initially initialize the thread pointer. This might need
+ special attention since 'errno' is not yet available and if the
+ operation can cause a failure 'errno' must not be touched. */
+# define TLS_INIT_TP(tcbp, secondcall) \
+ (__thread_register = (void *) (tcbp) + TLS_TCB_OFFSET + TLS_TCB_SIZE, NULL)
+
+/* Return the address of the dtv for the current thread. */
+# define THREAD_DTV() \
+ (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET - TLS_TCB_SIZE))->dtv)
+
+/* Return the thread descriptor for the current thread. */
+# define THREAD_SELF \
+ ((struct pthread *) (__thread_register \
+ - TLS_TCB_OFFSET - TLS_TCB_SIZE - TLS_PRE_TCB_SIZE))
+
+/* Read member of the thread descriptor directly. */
+# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
+
+/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
+# define THREAD_GETMEM_NC(descr, member, idx) \
+ ((void)(descr), (THREAD_SELF)->member[idx])
+
+/* Set member of the thread descriptor directly. */
+# define THREAD_SETMEM(descr, member, value) \
+ ((void)(descr), (THREAD_SELF)->member = (value))
+
+/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
+# define THREAD_SETMEM_NC(descr, member, idx, value) \
+ ((void)(descr), (THREAD_SELF)->member[idx] = (value))
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* tls.h */
--- /dev/null
+/* pthread_spin_init -- initialize a spin lock. Generic version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 "pthreadP.h"
+
+int
+pthread_spin_init (pthread_spinlock_t *lock, int pshared)
+{
+ *lock = 0;
+ return 0;
+}
--- /dev/null
+/* pthread_spin_unlock -- unlock a spin lock. Generic version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 "pthreadP.h"
+#include <atomic.h>
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+ atomic_full_barrier ();
+ *lock = 0;
+ return 0;
+}
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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. */
+
+/* No difference to lowlevellock.c, except we lose a couple of functions. */
+#include "lowlevellock.c"
--- /dev/null
+/* Nothing needed here in fact. */
--- /dev/null
+/* low level locking for pthread library. Generic futex-using version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <sys/time.h>
+
+
+void
+__lll_lock_wait (int *futex, int val)
+{
+ do {
+ lll_futex_wait (futex, val+1);
+ } while ((val = __lll_add (futex, 1)) != 0);
+ *futex = 2;
+}
+hidden_proto (__lll_lock_wait)
+
+
+int
+__lll_timedlock_wait (int *futex, int val, const struct timespec *abstime)
+{
+ int err;
+
+ /* Reject invalid timeouts. */
+ if (abstime->tv_nsec >= 1000000000)
+ return EINVAL;
+
+ do
+ {
+ struct timeval tv;
+ struct timespec rt;
+ int sec, nsec;
+
+ /* Get the current time. */
+ __gettimeofday (&tv, NULL);
+
+ /* Compute relative timeout. */
+ sec = abstime->tv_sec - tv.tv_sec;
+ nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+ if (nsec < 0)
+ {
+ nsec += 1000000000;
+ --sec;
+ }
+
+ /* Already timed out? */
+ err = -ETIMEDOUT;
+ if (sec < 0)
+ break;
+
+ /* Wait. */
+ rt.tv_sec = sec;
+ rt.tv_nsec = nsec;
+ err = lll_futex_timed_wait (futex, val+1, &rt);
+ } while (err == 0 && (val = __lll_add (futex, 1)) != 0);
+
+ *futex = 2;
+ return -err;
+}
+hidden_proto (__lll_timedlock_wait)
+
+
+/* These don't get included in libc.so */
+#ifdef IS_IN_libpthread
+int
+lll_unlock_wake_cb (int *futex)
+{
+ __lll_add (futex, 1);
+ return 0;
+}
+hidden_proto (lll_unlock_wake_cb)
+
+
+int
+__lll_timedwait_tid (int *tidp, const struct timespec *abstime)
+{
+ int tid;
+ int err = 0;
+
+ if (abstime == NULL || abstime->tv_nsec >= 1000000000)
+ return EINVAL;
+
+ /* Repeat until thread terminated. */
+ while ((tid = *tidp) != 0)
+ {
+ struct timeval tv;
+ struct timespec rt;
+ int sec, nsec;
+
+ /* Get the current time. */
+ __gettimeofday (&tv, NULL);
+
+ /* Compute relative timeout. */
+ sec = abstime->tv_sec - tv.tv_sec;
+ nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+ if (nsec < 0)
+ {
+ nsec += 1000000000;
+ --sec;
+ }
+
+ /* Already timed out? */
+ err = -ETIMEDOUT;
+ if (sec < 0)
+ break;
+
+ /* Wait. */
+ rt.tv_sec = sec;
+ rt.tv_nsec = nsec;
+
+ /* Wait until thread terminates. */
+ err = lll_futex_timed_wait (tidp, tid, &rt);
+ if (err != 0)
+ break;
+ }
+
+ return -err;
+}
+
+hidden_proto (__lll_timedwait_tid)
+#endif
--- /dev/null
+# pull in __syscall_error routine
+libpthread-routines += sysdep
--- /dev/null
+/* Machine-specific pthread type layouts. PowerPC version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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. */
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H 1
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_ATTR_T 56
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 56
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 32
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#else
+# define __SIZEOF_PTHREAD_ATTR_T 36
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 32
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 20
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#endif
+
+
+/* Thread identifiers. The structure of the attribute type is
+ deliberately not exposed. */
+typedef struct __opaque_pthread *pthread_t;
+
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_ATTR_T];
+ long int __align;
+} pthread_attr_t;
+
+
+/* Data structures for mutex handling. The structure of the attribute
+ type is deliberately not exposed. */
+typedef union
+{
+ struct
+ {
+ int __lock;
+ unsigned int __count;
+ struct pthread *__owner;
+ /* KIND must stay at this position in the structure to maintain
+ binary compatibility. */
+ int __kind;
+ } __data;
+ char __size[__SIZEOF_PTHREAD_MUTEX_T];
+ long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+ long int __align;
+} pthread_mutexattr_t;
+
+
+/* Data structure for conditional variable handling. The structure of
+ the attribute type is deliberately not exposed. */
+typedef union
+{
+ struct
+ {
+ int __lock;
+ int __pad;
+ unsigned long long int __total_seq;
+ unsigned long long int __wakeup_seq;
+ unsigned long long int __woken_seq;
+ } __data;
+ char __size[__SIZEOF_PTHREAD_COND_T];
+ long int __align;
+} pthread_cond_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_CONDATTR_T];
+ long int __align;
+} pthread_condattr_t;
+
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Data structure for read-write lock variable handling. The
+ structure of the attribute type is deliberately not exposed. */
+typedef union
+{
+ struct
+ {
+ int __lock;
+ unsigned int __nr_readers;
+ unsigned int __readers_wakeup;
+ unsigned int __writer_wakeup;
+ unsigned int __nr_readers_queued;
+ unsigned int __nr_writers_queued;
+ pthread_t __writer;
+ /* FLAGS must stay at this position in the structure to maintain
+ binary compatibility. */
+ unsigned int __flags;
+ } __data;
+ char __size[__SIZEOF_PTHREAD_RWLOCK_T];
+ long int __align;
+} pthread_rwlock_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
+ long int __align;
+} pthread_rwlockattr_t;
+#endif
+
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type. */
+typedef volatile int pthread_spinlock_t;
+
+
+/* POSIX barriers data type. The structure of the type is
+ deliberately not exposed. */
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_BARRIER_T];
+ long int __align;
+} pthread_barrier_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
+ int __align;
+} pthread_barrierattr_t;
+#endif
+
+
+#endif /* bits/pthreadtypes.h */
--- /dev/null
+/* Machine-specific POSIX semaphore type layouts. PowerPC version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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. */
+
+#ifndef _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_SEM_T 32
+#else
+# define __SIZEOF_SEM_T 16
+#endif
+
+/* 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
+{
+ char __size[__SIZEOF_SEM_T];
+ long int __align;
+} sem_t;
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>.
+
+ 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. */
+
+/* Value passed to 'clone' for initialization of the thread register. */
+#define TLS_VALUE ((void *) (pd) \
+ + TLS_TCB_OFFSET + TLS_TCB_SIZE + TLS_PRE_TCB_SIZE)
+
+/* Get the real implementation. */
+#include <nptl/sysdeps/pthread/createthread.c>
--- /dev/null
+#include "../i386/fork.c"
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 Libr \ary; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _LOWLEVELLOCK_H
+#define _LOWLEVELLOCK_H 1
+
+#include <time.h>
+#include <sys/param.h>
+#include <bits/pthreadtypes.h>
+
+#define __NR_futex 221
+#define FUTEX_WAIT 0
+#define FUTEX_WAKE 1
+
+/* 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); \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ })
+
+#define lll_futex_timed_wait(futexp, val, timespec) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (__err); \
+ long int __ret; \
+ \
+ __ret = INTERNAL_SYSCALL (futex, __err, 4, \
+ (futexp), FUTEX_WAIT, (val), (timespec)); \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ })
+
+#define lll_futex_wake(futexp, nr) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (__err); \
+ long int __ret; \
+ \
+ __ret = INTERNAL_SYSCALL (futex, __err, 4, \
+ (futexp), FUTEX_WAKE, (nr), 0); \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ })
+
+#ifdef UP
+#define __lll_acq_instr ""
+#define __lll_rel_instr ""
+#else
+#define __lll_acq_instr "isync"
+#define __lll_rel_instr "sync"
+#endif
+
+/* Set *futex to 1 if it is 0, atomically. Returns the old value */
+#define __lll_trylock(futex) \
+ ({ int __val; \
+ __asm __volatile ("1: lwarx %0,0,%2\n" \
+ " cmpwi 0,%0,0\n" \
+ " bne 2f\n" \
+ " stwcx. %3,0,%2\n" \
+ " bne- 1b\n" \
+ "2: " __lll_acq_instr \
+ : "=&r" (__val), "=m" (*futex) \
+ : "r" (futex), "r" (1), "1" (*futex) \
+ : "cr0", "memory"); \
+ __val; \
+ })
+
+#define lll_mutex_trylock(lock) __lll_trylock(&(lock))
+
+/* Add inc to *futex atomically and return the old value. */
+#define __lll_add(futex, inc) \
+ ({ int __val, __tmp; \
+ __asm __volatile ("1: lwarx %0,0,%3\n" \
+ " addi %1,%0,%4\n" \
+ " stwcx. %1,0,%3\n" \
+ " bne- 1b" \
+ : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \
+ : "r" (futex), "I" (inc), "2" (*futex) \
+ : "cr0"); \
+ __val; \
+ })
+
+extern void __lll_lock_wait (int *futex, int val) attribute_hidden;
+
+#define lll_mutex_lock(lock) \
+ (void) ({ \
+ int *__futex = &(lock); \
+ int __val = __lll_add (__futex, 1); \
+ __asm __volatile (__lll_acq_instr ::: "memory"); \
+ if (__builtin_expect (__val != 0, 0)) \
+ __lll_lock_wait (__futex, __val); \
+ })
+
+extern int __lll_timedlock_wait
+ (int *futex, int val, const struct timespec *) attribute_hidden;
+
+#define lll_mutex_timedlock(lock, abstime) \
+ ({ int *__futex = &(lock); \
+ int __val = __lll_add (__futex, 1); \
+ __asm __volatile (__lll_acq_instr ::: "memory"); \
+ if (__builtin_expect (__val != 0, 0)) \
+ __val = __lll_timedlock_wait (__futex, __val, (abstime)); \
+ __val; \
+ })
+
+#define lll_mutex_unlock(lock) \
+ (void) ({ \
+ int *__futex = &(lock); \
+ __asm __volatile (__lll_rel_instr ::: "memory"); \
+ int __val = __lll_add (__futex, -1); \
+ if (__builtin_expect (__val != 1, 0)) \
+ { \
+ *__futex = 0; \
+ lll_futex_wake (__futex, 1); \
+ } \
+ })
+
+#define lll_mutex_islocked(futex) \
+ (futex != 0)
+
+
+/* Our internal lock implementation is identical to the binary-compatible
+ mutex implementation. */
+
+/* Type for lock object. */
+typedef int lll_lock_t;
+
+/* Initializers for lock. */
+#define LLL_LOCK_INITIALIZER (0)
+#define LLL_LOCK_INITIALIZER_LOCKED (1)
+
+extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
+
+/* The states of a lock are:
+ 0 - untaken
+ 1 - taken by one user
+ >1 - taken by more users */
+
+#define lll_trylock(lock) lll_mutex_trylock (lock)
+#define lll_lock(lock) lll_mutex_lock (lock)
+#define lll_unlock(lock) lll_mutex_unlock (lock)
+#define lll_islocked(lock) lll_mutex_islocked (lock)
+
+/* The kernel notifies a process which uses CLONE_CLEARTID via futex
+ wakeup when the clone terminates. The memory location contains the
+ thread ID while the clone is running and is reset to zero
+ afterwards. */
+#define lll_wait_tid(tid) \
+ do { \
+ __typeof (tid) __tid; \
+ while ((__tid = (tid)) != 0) \
+ lll_futex_wait (&(tid), __tid); \
+ } while (0)
+
+extern int __lll_timedwait_tid (int *, const struct timespec *)
+ attribute_hidden;
+
+#define lll_timedwait_tid(tid, abstime) \
+ ({ \
+ int __res = 0; \
+ if ((tid) != 0) \
+ __res = __lll_timedwait_tid (&(tid), (abstime)); \
+ __res; \
+ })
+
+
+/* Decrement *futex if it is > 0, and return the old value */
+#define __lll_dec_if_positive(futex) \
+ ({ int __val, __tmp; \
+ __asm __volatile ("1: lwarx %0,0,%3\n" \
+ " cmpwi 0,%0,0\n" \
+ " addi %1,%0,-1\n" \
+ " ble 2f\n" \
+ " stwcx. %1,0,%3\n" \
+ " bne- 1b\n" \
+ "2: " __lll_acq_instr \
+ : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \
+ : "r" (futex), "2" (*futex) \
+ : "cr0"); \
+ __val; \
+ })
+
+
+/* Conditional variable handling. */
+
+extern void __lll_cond_wait (pthread_cond_t *cond)
+ attribute_hidden;
+extern int __lll_cond_timedwait (pthread_cond_t *cond,
+ const struct timespec *abstime)
+ attribute_hidden;
+extern void __lll_cond_wake (pthread_cond_t *cond)
+ attribute_hidden;
+extern void __lll_cond_broadcast (pthread_cond_t *cond)
+ attribute_hidden;
+
+#define lll_cond_wait(cond) \
+ __lll_cond_wait (cond)
+#define lll_cond_timedwait(cond, abstime) \
+ __lll_cond_timedwait (cond, abstime)
+#define lll_cond_wake(cond) \
+ __lll_cond_wake (cond)
+#define lll_cond_broadcast(cond) \
+ __lll_cond_broadcast (cond)
+
+#endif /* lowlevellock.h */
--- /dev/null
+/* Cancellable system call stubs. Linux/PowerPC version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003.
+
+ 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 <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ SINGLE_THREAD_P; \
+ bne- .Lpseudo_cancel; \
+ DO_CALL (SYS_ify (syscall_name)); \
+ PSEUDO_RET; \
+ .Lpseudo_cancel: \
+ stwu 1,-48(1); \
+ mflr 9; \
+ stw 9,52(1); \
+ DOCARGS_##args; /* save syscall args around CENABLE. */ \
+ CENABLE; \
+ stw 3,16(1); /* store CENABLE return value (MASK). */ \
+ UNDOCARGS_##args; /* restore syscall args. */ \
+ DO_CALL (SYS_ify (syscall_name)); \
+ mfcr 0; /* save CR/R3 around CDISABLE. */ \
+ stw 3,8(1); \
+ stw 0,12(1); \
+ lwz 3,16(1); /* pass MASK to CDISABLE. */ \
+ CDISABLE; \
+ lwz 4,52(1); \
+ lwz 0,12(1); /* restore CR/R3. */ \
+ lwz 3,8(1); \
+ mtlr 4; \
+ mtcr 0; \
+ addi 1,1,48;
+
+# define DOCARGS_0
+# define UNDOCARGS_0
+
+# define DOCARGS_1 stw 3,20(1); DOCARGS_0
+# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0
+
+# define DOCARGS_2 stw 4,24(1); DOCARGS_1
+# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1
+
+# define DOCARGS_3 stw 5,28(1); DOCARGS_2
+# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2
+
+# define DOCARGS_4 stw 6,32(1); DOCARGS_3
+# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3
+
+# define DOCARGS_5 stw 7,36(1); DOCARGS_4
+# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4
+
+# define DOCARGS_6 stw 8,40(1); DOCARGS_5
+# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5
+
+# ifdef IS_IN_libpthread
+# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
+# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
+# else
+# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
+# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
+# endif
+
+# ifndef __ASSEMBLER__
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
+# else
+# define SINGLE_THREAD_P \
+ lwz 10,MULTIPLE_THREADS_OFFSET(2); \
+ cmpwi 10,0
+# endif
+
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow. */
+# define SINGLE_THREAD_P (1)
+
+#endif
--- /dev/null
+/* Cancellable system call stubs. Linux/PowerPC64 version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003.
+
+ 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 <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .section ".text"; \
+ ENTRY (name) \
+ SINGLE_THREAD_P; \
+ bne- .Lpseudo_cancel; \
+ DO_CALL (SYS_ify (syscall_name)); \
+ PSEUDO_RET; \
+ .Lpseudo_cancel: \
+ stdu 1,-128(1); \
+ mflr 9; \
+ std 9,128+16(1); \
+ DOCARGS_##args; /* save syscall args around CENABLE. */ \
+ CENABLE; \
+ std 3,72(1); /* store CENABLE return value (MASK). */ \
+ UNDOCARGS_##args; /* restore syscall args. */ \
+ DO_CALL (SYS_ify (syscall_name)); \
+ mfcr 0; /* save CR/R3 around CDISABLE. */ \
+ std 3,64(1); \
+ std 0,8(1); \
+ ld 3,72(1); /* pass MASK to CDISABLE. */ \
+ CDISABLE; \
+ ld 9,128+16(1); \
+ ld 0,8(1); /* restore CR/R3. */ \
+ ld 3,64(1); \
+ mtlr 9; \
+ mtcr 0; \
+ addi 1,1,128;
+
+# define DOCARGS_0
+# define UNDOCARGS_0
+
+# define DOCARGS_1 std 3,80(1); DOCARGS_0
+# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0
+
+# define DOCARGS_2 std 4,88(1); DOCARGS_1
+# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1
+
+# define DOCARGS_3 std 5,96(1); DOCARGS_2
+# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2
+
+# define DOCARGS_4 std 6,104(1); DOCARGS_3
+# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3
+
+# define DOCARGS_5 std 7,112(1); DOCARGS_4
+# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4
+
+# define DOCARGS_6 std 8,120(1); DOCARGS_5
+# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5
+
+# ifdef IS_IN_libpthread
+# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
+# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
+# else
+# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
+# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
+# endif
+
+# ifndef __ASSEMBLER__
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, multiple_threads) \
+ == 0, 1)
+# else
+# define SINGLE_THREAD_P \
+ lwz 10,MULTIPLE_THREADS_OFFSET(13); \
+ cmpdi 10,0
+# endif
+
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow. */
+# define SINGLE_THREAD_P (1)
+
+#endif
--- /dev/null
+/* Copyright (C) 2003 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
+ 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 <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+ DO_CALL (SYS_ify (vfork));
+ PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 "pthreadP.h"
+#include <lowlevellock.h>
+
+
+unsigned long int __fork_generation attribute_hidden;
+
+
+static void
+clear_once_control (void *arg)
+{
+ pthread_once_t *once_control = (pthread_once_t *) arg;
+
+ *once_control = 0;
+ lll_futex_wake (once_control, INT_MAX);
+}
+
+
+int
+__pthread_once (pthread_once_t *once_control, void (*init_routine) (void))
+{
+ for (;;)
+ {
+ int oldval;
+ int newval;
+ int tmp;
+
+ /* Pseudo code:
+ newval = __fork_generation | 1;
+ oldval = *once_control;
+ if ((oldval & 2) == 0)
+ *once_control = newval;
+ Do this atomically.
+ */
+ newval = __fork_generation | 1;
+ __asm __volatile ("1: lwarx %0,0,%3\n"
+ " andi. %1,%0,2\n"
+ " bne 2f\n"
+ " stwcx. %4,0,%3\n"
+ "2: isync"
+ : "=&r" (oldval), "=&r" (tmp), "=m" (*once_control)
+ : "r" (once_control), "r" (newval), "m" (*once_control)
+ : "cr0");
+
+ /* Check if the initializer has already been done. */
+ if ((oldval & 2) != 0)
+ return 0;
+
+ /* Check if another thread already runs the initializer. */
+ if ((oldval & 1) == 0)
+ break;
+
+ /* Check whether the initializer execution was interrupted by a fork. */
+ if (oldval != newval)
+ break;
+
+ /* Same generation, some other thread was faster. Wait. */
+ lll_futex_wait (once_control, oldval);
+ }
+
+
+ /* This thread is the first here. Do the initialization.
+ Register a cleanup handler so that in case the thread gets
+ interrupted the initialization can be restarted. */
+ pthread_cleanup_push (clear_once_control, once_control);
+
+ init_routine ();
+
+ pthread_cleanup_pop (0);
+
+
+ /* Add one to *once_control to take the bottom 2 bits from 01 to 10. */
+ __lll_add (once_control, 1);
+
+ /* Wake up all other threads. */
+ lll_futex_wake (once_control, INT_MAX);
+
+ return 0;
+}
+weak_alias (__pthread_once, pthread_once)
+strong_alias (__pthread_once, __pthread_once_internal)
--- /dev/null
+/* sem_post -- post to a POSIX semaphore. Generic futex-using version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <shlib-compat.h>
+
+int
+__new_sem_post (sem_t *sem)
+{
+ int *futex = (int *) sem;
+ int err, nr;
+
+ __asm __volatile (__lll_rel_instr ::: "memory");
+ nr = __lll_add (futex, 1);
+ err = lll_futex_wake (futex, nr);
+ if (err == 0)
+ return 0;
+ __set_errno (-err);
+ return -1;
+}
+versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_post, __old_sem_post)
+compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
+#endif
--- /dev/null
+/* sem_timedwait -- wait on a semaphore. Generic futex-using version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <shlib-compat.h>
+
+
+int
+sem_timedwait (sem_t *sem, const struct timespec *abstime)
+{
+ int *futex = (int *) sem;
+ int val;
+ int err;
+
+ if (*futex > 0)
+ {
+ val = __lll_dec_if_positive (futex);
+ if (val > 0)
+ return 0;
+ }
+
+ err = -EINVAL;
+ if (abstime->tv_nsec >= 1000000000)
+ goto error_return;
+
+ do
+ {
+ struct timeval tv;
+ struct timespec rt;
+ int sec, nsec;
+
+ /* Get the current time. */
+ __gettimeofday (&tv, NULL);
+
+ /* Compute relative timeout. */
+ sec = abstime->tv_sec - tv.tv_sec;
+ nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+ if (nsec < 0)
+ {
+ nsec += 1000000000;
+ --sec;
+ }
+
+ /* Already timed out? */
+ err = -ETIMEDOUT;
+ if (sec < 0)
+ goto error_return;
+
+ /* Do wait. */
+ rt.tv_sec = sec;
+ rt.tv_nsec = nsec;
+ err = lll_futex_timed_wait (futex, 0, &rt);
+ if (err != 0 && err != -EWOULDBLOCK)
+ goto error_return;
+
+ val = __lll_dec_if_positive (futex);
+ }
+ while (val <= 0);
+
+ return 0;
+
+ error_return:
+ __set_errno (-err);
+ return -1;
+}
--- /dev/null
+/* sem_trywait -- wait on a semaphore. Generic futex-using version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <shlib-compat.h>
+
+
+int
+__new_sem_trywait (sem_t *sem)
+{
+ int *futex = (int *) sem;
+ int val;
+
+ if (*futex > 0)
+ {
+ val = __lll_dec_if_positive (futex);
+ if (val > 0)
+ return 0;
+ }
+
+ __set_errno (EAGAIN);
+ return -1;
+}
+versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1);
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_trywait, __old_sem_trywait)
+compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0);
+#endif
projects / external / glibc.git / commitdiff