mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
2006-04-19 Carlos O'Donell <carlos@systemhalted.org>
* sysdeps/hppa/linuxthreads/pspinlock.c: New file. * sysdeps/hppa/linuxthreads/pt-machine.h: Likewise. * sysdeps/hppa/linuxthreads/tls.h: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h: Likewise. * sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h: Likewise.
This commit is contained in:
Carlos O'Donell
parent
44f4e76726
commit
5d3b4a7723
@ -1,3 +1,17 @@
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2006-04-19 Carlos O'Donell <carlos@systemhalted.org>
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* sysdeps/hppa/linuxthreads/pspinlock.c: New file.
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* sysdeps/hppa/linuxthreads/pt-machine.h: Likewise.
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* sysdeps/hppa/linuxthreads/tls.h: Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c: Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h:
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Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c: Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h: Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h: Likewise.
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* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h:
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Likewise.
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2006-02-28 Roland McGrath <roland@redhat.com>
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* sysdeps/hppa/shlib-versions: New file.
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82
sysdeps/hppa/linuxthreads/pspinlock.c
Normal file
82
sysdeps/hppa/linuxthreads/pspinlock.c
Normal file
@ -0,0 +1,82 @@
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/* POSIX spinlock implementation. hppa version.
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Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <pthread.h>
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#include "internals.h"
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int
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__pthread_spin_lock (pthread_spinlock_t *lock)
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{
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volatile unsigned int *addr = __ldcw_align (lock);
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while (__ldcw (addr) == 0)
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while (*addr == 0) ;
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return 0;
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}
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weak_alias (__pthread_spin_lock, pthread_spin_lock)
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int
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__pthread_spin_trylock (pthread_spinlock_t *lock)
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{
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volatile unsigned int *a = __ldcw_align (lock);
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return __ldcw (a) ? 0 : EBUSY;
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}
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weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
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int
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__pthread_spin_unlock (pthread_spinlock_t *lock)
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{
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volatile unsigned int *a = __ldcw_align (lock);
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int tmp = 1;
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/* This should be a memory barrier to newer compilers */
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__asm__ __volatile__ ("stw,ma %1,0(%0)"
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: : "r" (a), "r" (tmp) : "memory");
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return 0;
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}
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weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
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int
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__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
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{
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/* We can ignore the `pshared' parameter. Since we are busy-waiting
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all processes which can access the memory location `lock' points
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to can use the spinlock. */
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volatile unsigned int *a = __ldcw_align (lock);
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int tmp = 1;
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/* This should be a memory barrier to newer compilers */
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__asm__ __volatile__ ("stw,ma %1,0(%0)"
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: : "r" (a), "r" (tmp) : "memory");
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return 0;
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}
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weak_alias (__pthread_spin_init, pthread_spin_init)
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int
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__pthread_spin_destroy (pthread_spinlock_t *lock)
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{
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/* Nothing to do. */
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return 0;
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}
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weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
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134
sysdeps/hppa/linuxthreads/pt-machine.h
Normal file
134
sysdeps/hppa/linuxthreads/pt-machine.h
Normal file
@ -0,0 +1,134 @@
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/* Machine-dependent pthreads configuration and inline functions.
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hppa version.
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Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Richard Henderson <rth@tamu.edu>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _PT_MACHINE_H
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#define _PT_MACHINE_H 1
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#include <sys/types.h>
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#include <bits/initspin.h>
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#ifndef PT_EI
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# define PT_EI extern inline __attribute__ ((always_inline))
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#endif
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extern inline long int testandset (__atomic_lock_t *spinlock);
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extern inline int __compare_and_swap (long int *p, long int oldval, long int newval);
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extern inline int lock_held (__atomic_lock_t *spinlock);
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extern inline int __load_and_clear (__atomic_lock_t *spinlock);
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/* Get some notion of the current stack. Need not be exactly the top
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of the stack, just something somewhere in the current frame. */
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#define CURRENT_STACK_FRAME stack_pointer
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register char * stack_pointer __asm__ ("%r30");
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/* Get/Set thread-specific pointer. We have to call into the kernel to
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* modify it, but we can read it in user mode. */
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#ifndef THREAD_SELF
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#define THREAD_SELF __get_cr27()
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#endif
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#ifndef SET_THREAD_SELF
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#define SET_THREAD_SELF(descr) __set_cr27(descr)
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#endif
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/* Use this to determine type */
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struct _pthread_descr_struct *__thread_self;
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static inline struct _pthread_descr_struct * __get_cr27(void)
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{
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long cr27;
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asm ("mfctl %%cr27, %0" : "=r" (cr27) : );
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return (struct _pthread_descr_struct *) cr27;
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}
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#ifndef INIT_THREAD_SELF
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#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
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#endif
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static inline void __set_cr27(struct _pthread_descr_struct * cr27)
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{
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asm ( "ble 0xe0(%%sr2, %%r0)\n\t"
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"copy %0, %%r26"
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: : "r" (cr27) : "r26" );
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}
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/* We want the OS to assign stack addresses. */
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#define FLOATING_STACKS 1
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#define ARCH_STACK_MAX_SIZE 8*1024*1024
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/* The hppa only has one atomic read and modify memory operation,
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load and clear, so hppa spinlocks must use zero to signify that
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someone is holding the lock. The address used for the ldcw
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semaphore must be 16-byte aligned. */
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#define __ldcw(a) \
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({ \
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unsigned int __ret; \
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__asm__ __volatile__("ldcw 0(%1),%0" \
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: "=r" (__ret) : "r" (a) : "memory"); \
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__ret; \
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})
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/* Strongly ordered lock reset */
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#define __lock_reset(lock_addr, tmp) \
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({ \
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__asm__ __volatile__ ("stw,ma %1,0(%0)" \
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: : "r" (lock_addr), "r" (tmp) : "memory"); \
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})
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/* Because malloc only guarantees 8-byte alignment for malloc'd data,
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and GCC only guarantees 8-byte alignment for stack locals, we can't
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be assured of 16-byte alignment for atomic lock data even if we
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specify "__attribute ((aligned(16)))" in the type declaration. So,
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we use a struct containing an array of four ints for the atomic lock
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type and dynamically select the 16-byte aligned int from the array
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for the semaphore. */
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#define __PA_LDCW_ALIGNMENT 16
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#define __ldcw_align(a) ({ \
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volatile unsigned int __ret = (unsigned int) a; \
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if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a) \
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__ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
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(unsigned int *) __ret; \
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})
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/* Spinlock implementation; required. */
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PT_EI int
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__load_and_clear (__atomic_lock_t *spinlock)
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{
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volatile unsigned int *a = __ldcw_align (spinlock);
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return __ldcw (a);
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}
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/* Emulate testandset */
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PT_EI long int
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testandset (__atomic_lock_t *spinlock)
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{
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return (__load_and_clear(spinlock) == 0);
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}
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PT_EI int
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lock_held (__atomic_lock_t *spinlock)
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{
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volatile unsigned int *a = __ldcw_align (spinlock);
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return *a == 0;
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}
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#endif /* pt-machine.h */
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163
sysdeps/hppa/linuxthreads/tls.h
Normal file
163
sysdeps/hppa/linuxthreads/tls.h
Normal file
@ -0,0 +1,163 @@
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/* Definition for thread-local data handling. linuxthreads/hppa version.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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|
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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
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02111-1307 USA. */
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#ifndef _TLS_H
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#define _TLS_H
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#ifndef __ASSEMBLER__
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# include <pt-machine.h>
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# include <stdbool.h>
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# include <stddef.h>
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/* Type for the dtv. */
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typedef union dtv
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{
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size_t counter;
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struct
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{
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void *val;
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bool is_static;
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} pointer;
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} dtv_t;
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#else /* __ASSEMBLER__ */
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# include <tcb-offsets.h>
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#endif /* __ASSEMBLER__ */
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#if defined HAVE_TLS_SUPPORT
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/* Signal that TLS support is available. */
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# define USE_TLS 1
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# ifndef __ASSEMBLER__
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typedef struct
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{
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dtv_t *dtv;
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void *private;
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} tcbhead_t;
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||||
|
||||
/* Include some syscall information for other headers */
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# include <sysdep.h>
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||||
|
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/* This is the size of the initial TCB. */
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# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
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|
||||
/* Alignment requirements for the initial TCB. */
|
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# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
|
||||
|
||||
/* This is the size of the TCB. */
|
||||
# define TLS_TCB_SIZE sizeof (tcbhead_t)
|
||||
|
||||
/* This is the size we need before TCB. */
|
||||
# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct)
|
||||
|
||||
/* Alignment requirements for the TCB. */
|
||||
# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
|
||||
|
||||
/* The TLS blocks start right after the TCB. */
|
||||
# define TLS_DTV_AT_TP 1
|
||||
|
||||
/* Return the thread descriptor for the current thread. */
|
||||
# undef THREAD_SELF
|
||||
# define THREAD_SELF \
|
||||
({ struct _pthread_descr_struct *__self; \
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__self = __get_cr27(); \
|
||||
__self - 1; \
|
||||
})
|
||||
|
||||
# undef INIT_THREAD_SELF
|
||||
# define INIT_THREAD_SELF(descr, nr) \
|
||||
({ struct _pthread_descr_struct *__self = (void *)descr; \
|
||||
__set_cr27(__self + 1); \
|
||||
0; \
|
||||
})
|
||||
|
||||
/* Access to data in the thread descriptor is easy. */
|
||||
#define THREAD_GETMEM(descr, member) \
|
||||
((void) sizeof (descr), THREAD_SELF->member)
|
||||
#define THREAD_GETMEM_NC(descr, member) \
|
||||
((void) sizeof (descr), THREAD_SELF->member)
|
||||
#define THREAD_SETMEM(descr, member, value) \
|
||||
((void) sizeof (descr), THREAD_SELF->member = (value))
|
||||
#define THREAD_SETMEM_NC(descr, member, value) \
|
||||
((void) sizeof (descr), THREAD_SELF->member = (value))
|
||||
|
||||
/* 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) \
|
||||
({ tcbhead_t *__tcbp = (tcbhead_t *)__get_cr27(); \
|
||||
__tcbp->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) \
|
||||
({ __set_cr27(tcbp); 0; })
|
||||
|
||||
/* Return the address of the dtv for the current thread. */
|
||||
# define THREAD_DTV() \
|
||||
({ tcbhead_t *__tcbp = (tcbhead_t *)__get_cr27(); \
|
||||
__tcbp->dtv; \
|
||||
})
|
||||
|
||||
# define TLS_MULTIPLE_THREADS_IN_TCB 1
|
||||
|
||||
/* Get the thread descriptor definition. This must be after the
|
||||
the definition of THREAD_SELF for TLS. */
|
||||
# include <linuxthreads/descr.h>
|
||||
|
||||
# endif /* __ASSEMBLER__ */
|
||||
|
||||
#else
|
||||
|
||||
# ifndef __ASSEMBLER__
|
||||
|
||||
typedef struct
|
||||
{
|
||||
void *tcb;
|
||||
dtv_t *dtv;
|
||||
void *self;
|
||||
int multiple_threads;
|
||||
} tcbhead_t;
|
||||
|
||||
/* Get the thread descriptor definition. */
|
||||
# include <linuxthreads/descr.h>
|
||||
|
||||
# define NONTLS_INIT_TP \
|
||||
do { \
|
||||
static const tcbhead_t nontls_init_tp = { .multiple_threads = 0 }; \
|
||||
INIT_THREAD_SELF(&nontls_init_tp, 0); \
|
||||
} while (0)
|
||||
|
||||
# endif /* __ASSEMBLER__ */
|
||||
|
||||
#endif /* HAVE_TLS_SUPPORT */
|
||||
|
||||
#endif /* tls.h */
|
||||
33
sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c
Normal file
33
sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c
Normal file
@ -0,0 +1,33 @@
|
||||
#include <shlib-compat.h>
|
||||
|
||||
#define aio_cancel64 XXX
|
||||
#include <aio.h>
|
||||
#undef aio_cancel64
|
||||
#include <errno.h>
|
||||
|
||||
extern __typeof (aio_cancel) __new_aio_cancel;
|
||||
extern __typeof (aio_cancel) __old_aio_cancel;
|
||||
|
||||
#define aio_cancel __new_aio_cancel
|
||||
|
||||
#include <sysdeps/pthread/aio_cancel.c>
|
||||
|
||||
#undef aio_cancel
|
||||
strong_alias (__new_aio_cancel, __new_aio_cancel64);
|
||||
versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3);
|
||||
versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3);
|
||||
|
||||
#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3)
|
||||
|
||||
#undef ECANCELED
|
||||
#define aio_cancel __old_aio_cancel
|
||||
#define ECANCELED 125
|
||||
|
||||
#include <sysdeps/pthread/aio_cancel.c>
|
||||
|
||||
#undef aio_cancel
|
||||
strong_alias (__old_aio_cancel, __old_aio_cancel64);
|
||||
compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1);
|
||||
compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1);
|
||||
|
||||
#endif
|
||||
41
sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h
Normal file
41
sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h
Normal file
@ -0,0 +1,41 @@
|
||||
/* PA-RISC specific definitions for spinlock initializers.
|
||||
Copyright (C) 2000, 2001 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; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
/* Initial value of a spinlock. PA-RISC only implements atomic load
|
||||
and clear so this must be non-zero. */
|
||||
#define __LT_SPINLOCK_INIT ((__atomic_lock_t) { { 1, 1, 1, 1 } })
|
||||
|
||||
/* Initialize global spinlocks without cast, generally macro wrapped */
|
||||
#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1 } }
|
||||
|
||||
/* Macros for lock initializers, not using the above definition.
|
||||
The above definition is not used in the case that static initializers
|
||||
use this value. */
|
||||
#define __LOCK_ALT_INITIALIZER { __LT_SPINLOCK_ALT_INIT, 0 }
|
||||
|
||||
/* Used to initialize _pthread_fastlock's in non-static case */
|
||||
#define __LOCK_INITIALIZER ((struct _pthread_fastlock){ __LT_SPINLOCK_INIT, 0 })
|
||||
|
||||
/* Used in pthread_atomic initialization */
|
||||
#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
|
||||
|
||||
/* Tell the rest of the code that the initializer is non-zero without
|
||||
explaining it's internal structure */
|
||||
#define __LT_INITIALIZER_NOT_ZERO
|
||||
|
||||
160
sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h
Normal file
160
sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h
Normal file
@ -0,0 +1,160 @@
|
||||
/* Linuxthreads - a simple clone()-based implementation of Posix */
|
||||
/* threads for Linux. */
|
||||
/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */
|
||||
/* */
|
||||
/* This program is free software; you can redistribute it and/or */
|
||||
/* modify it under the terms of the GNU Library General Public License */
|
||||
/* as published by the Free Software Foundation; either version 2 */
|
||||
/* of the License, or (at your option) any later version. */
|
||||
/* */
|
||||
/* This program 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 Library General Public License for more details. */
|
||||
|
||||
#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
|
||||
# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
|
||||
#endif
|
||||
|
||||
#ifndef _BITS_PTHREADTYPES_H
|
||||
#define _BITS_PTHREADTYPES_H 1
|
||||
|
||||
#define __need_schedparam
|
||||
#include <bits/sched.h>
|
||||
|
||||
/* We need 128-bit alignment for the ldcw semaphore. At most, we are
|
||||
assured of 64-bit alignment for stack locals and malloc'd data. Thus,
|
||||
we use a struct with four ints for the atomic lock type. The locking
|
||||
code will figure out which of the four to use for the ldcw semaphore. */
|
||||
typedef volatile struct {
|
||||
int lock[4];
|
||||
} __attribute__ ((aligned(16))) __atomic_lock_t;
|
||||
|
||||
/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
|
||||
struct _pthread_fastlock
|
||||
{
|
||||
__atomic_lock_t __spinlock; /* Used by compare_and_swap emulation. Also,
|
||||
adaptive SMP lock stores spin count here. */
|
||||
long int __status; /* "Free" or "taken" or head of waiting list */
|
||||
};
|
||||
|
||||
#ifndef _PTHREAD_DESCR_DEFINED
|
||||
/* Thread descriptors */
|
||||
typedef struct _pthread_descr_struct *_pthread_descr;
|
||||
# define _PTHREAD_DESCR_DEFINED
|
||||
#endif
|
||||
|
||||
|
||||
/* Attributes for threads. */
|
||||
typedef struct __pthread_attr_s
|
||||
{
|
||||
int __detachstate;
|
||||
int __schedpolicy;
|
||||
struct __sched_param __schedparam;
|
||||
int __inheritsched;
|
||||
int __scope;
|
||||
size_t __guardsize;
|
||||
int __stackaddr_set;
|
||||
void *__stackaddr;
|
||||
size_t __stacksize;
|
||||
} pthread_attr_t;
|
||||
|
||||
|
||||
/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
|
||||
|
||||
#ifdef __GLIBC_HAVE_LONG_LONG
|
||||
__extension__ typedef long long __pthread_cond_align_t;
|
||||
#else
|
||||
typedef long __pthread_cond_align_t;
|
||||
#endif
|
||||
|
||||
typedef struct
|
||||
{
|
||||
struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
|
||||
_pthread_descr __c_waiting; /* Threads waiting on this condition */
|
||||
char __padding[48 - sizeof (struct _pthread_fastlock)
|
||||
- sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
|
||||
__pthread_cond_align_t __align;
|
||||
} pthread_cond_t;
|
||||
|
||||
|
||||
/* Attribute for conditionally variables. */
|
||||
typedef struct
|
||||
{
|
||||
int __dummy;
|
||||
} pthread_condattr_t;
|
||||
|
||||
/* Keys for thread-specific data */
|
||||
typedef unsigned int pthread_key_t;
|
||||
|
||||
|
||||
/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). */
|
||||
/* (The layout is unnatural to maintain binary compatibility
|
||||
with earlier releases of LinuxThreads.) */
|
||||
typedef struct
|
||||
{
|
||||
int __m_reserved; /* Reserved for future use */
|
||||
int __m_count; /* Depth of recursive locking */
|
||||
_pthread_descr __m_owner; /* Owner thread (if recursive or errcheck) */
|
||||
int __m_kind; /* Mutex kind: fast, recursive or errcheck */
|
||||
struct _pthread_fastlock __m_lock; /* Underlying fast lock */
|
||||
} pthread_mutex_t;
|
||||
|
||||
|
||||
/* Attribute for mutex. */
|
||||
typedef struct
|
||||
{
|
||||
int __mutexkind;
|
||||
} pthread_mutexattr_t;
|
||||
|
||||
|
||||
/* Once-only execution */
|
||||
typedef int pthread_once_t;
|
||||
|
||||
|
||||
#ifdef __USE_UNIX98
|
||||
/* Read-write locks. */
|
||||
typedef struct _pthread_rwlock_t
|
||||
{
|
||||
struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
|
||||
int __rw_readers; /* Number of readers */
|
||||
_pthread_descr __rw_writer; /* Identity of writer, or NULL if none */
|
||||
_pthread_descr __rw_read_waiting; /* Threads waiting for reading */
|
||||
_pthread_descr __rw_write_waiting; /* Threads waiting for writing */
|
||||
int __rw_kind; /* Reader/Writer preference selection */
|
||||
int __rw_pshared; /* Shared between processes or not */
|
||||
} pthread_rwlock_t;
|
||||
|
||||
|
||||
/* Attribute for read-write locks. */
|
||||
typedef struct
|
||||
{
|
||||
int __lockkind;
|
||||
int __pshared;
|
||||
} pthread_rwlockattr_t;
|
||||
#endif
|
||||
|
||||
#ifdef __USE_XOPEN2K
|
||||
/* POSIX spinlock data type. */
|
||||
typedef __atomic_lock_t pthread_spinlock_t;
|
||||
|
||||
/* POSIX barrier. */
|
||||
typedef struct {
|
||||
struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
|
||||
int __ba_required; /* Threads needed for completion */
|
||||
int __ba_present; /* Threads waiting */
|
||||
_pthread_descr __ba_waiting; /* Queue of waiting threads */
|
||||
} pthread_barrier_t;
|
||||
|
||||
/* barrier attribute */
|
||||
typedef struct {
|
||||
int __pshared;
|
||||
} pthread_barrierattr_t;
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/* Thread identifiers */
|
||||
typedef unsigned long int pthread_t;
|
||||
|
||||
#endif /* bits/pthreadtypes.h */
|
||||
73
sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h
Normal file
73
sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h
Normal file
@ -0,0 +1,73 @@
|
||||
/* HP-PARISC macro definitions for mutexes, thread-specific data
|
||||
and parameters for malloc.
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 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 _MALLOC_MACHINE_H
|
||||
#define _MALLOC_MACHINE_H
|
||||
|
||||
#undef thread_atfork_static
|
||||
|
||||
#include <atomic.h>
|
||||
#include <bits/libc-lock.h>
|
||||
|
||||
__libc_lock_define (typedef, mutex_t)
|
||||
|
||||
/* Since our lock structure does not tolerate being initialized to zero, we must
|
||||
modify the standard function calls made by malloc */
|
||||
# define mutex_init(m) \
|
||||
__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
|
||||
(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
|
||||
# define mutex_lock(m) \
|
||||
__libc_maybe_call (__pthread_mutex_lock, (m), \
|
||||
(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
|
||||
# define mutex_trylock(m) \
|
||||
__libc_maybe_call (__pthread_mutex_trylock, (m), \
|
||||
(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
|
||||
# define mutex_unlock(m) \
|
||||
__libc_maybe_call (__pthread_mutex_unlock, (m), \
|
||||
(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
|
||||
|
||||
/* This is defined by newer gcc version unique for each module. */
|
||||
extern void *__dso_handle __attribute__ ((__weak__));
|
||||
|
||||
#include <fork.h>
|
||||
|
||||
#ifdef SHARED
|
||||
# define thread_atfork(prepare, parent, child) \
|
||||
__register_atfork (prepare, parent, child, __dso_handle)
|
||||
#else
|
||||
# define thread_atfork(prepare, parent, child) \
|
||||
__register_atfork (prepare, parent, child, \
|
||||
&__dso_handle == NULL ? NULL : __dso_handle)
|
||||
#endif
|
||||
|
||||
/* thread specific data for glibc */
|
||||
|
||||
#include <bits/libc-tsd.h>
|
||||
|
||||
typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
|
||||
__libc_tsd_define (static, MALLOC) /* declaration/common definition */
|
||||
#define tsd_key_create(key, destr) ((void) (key))
|
||||
#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data))
|
||||
#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC))
|
||||
|
||||
#include <sysdeps/generic/malloc-machine.h>
|
||||
|
||||
#endif /* !defined(_MALLOC_MACHINE_H) */
|
||||
109
sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c
Normal file
109
sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c
Normal file
@ -0,0 +1,109 @@
|
||||
/* Special .init and .fini section support for HPPA. Linuxthreads version.
|
||||
Copyright (C) 2001, 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.
|
||||
|
||||
In addition to the permissions in the GNU Lesser General Public
|
||||
License, the Free Software Foundation gives you unlimited
|
||||
permission to link the compiled version of this file with other
|
||||
programs, and to distribute those programs without any restriction
|
||||
coming from the use of this file. (The Lesser General Public
|
||||
License restrictions do apply in other respects; for example, they
|
||||
cover modification of the file, and distribution when not linked
|
||||
into another program.)
|
||||
|
||||
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; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
/* This file is compiled into assembly code which is then munged by a sed
|
||||
script into two files: crti.s and crtn.s.
|
||||
|
||||
* crti.s puts a function prologue at the beginning of the
|
||||
.init and .fini sections and defines global symbols for
|
||||
those addresses, so they can be called as functions.
|
||||
|
||||
* crtn.s puts the corresponding function epilogues
|
||||
in the .init and .fini sections. */
|
||||
|
||||
/* If we use the standard C version, the linkage table pointer won't
|
||||
be properly preserved due to the splitting up of function prologues
|
||||
and epilogues. Therefore we write these in assembly to make sure
|
||||
they do the right thing. */
|
||||
|
||||
__asm__ (
|
||||
"#include \"defs.h\"\n"
|
||||
"\n"
|
||||
"/*@HEADER_ENDS*/\n"
|
||||
"\n"
|
||||
"/*@_init_PROLOG_BEGINS*/\n"
|
||||
" .section .init\n"
|
||||
" .align 4\n"
|
||||
" .globl _init\n"
|
||||
" .type _init,@function\n"
|
||||
"_init:\n"
|
||||
" stw %rp,-20(%sp)\n"
|
||||
" stwm %r4,64(%sp)\n"
|
||||
" stw %r19,-32(%sp)\n"
|
||||
" bl __pthread_initialize_minimal,%rp\n"
|
||||
" copy %r19,%r4 /* delay slot */\n"
|
||||
" copy %r4,%r19\n"
|
||||
"/*@_init_PROLOG_ENDS*/\n"
|
||||
"\n"
|
||||
"/*@_init_EPILOG_BEGINS*/\n"
|
||||
"/* Here is the tail end of _init. */\n"
|
||||
" .section .init\n"
|
||||
" ldw -84(%sp),%rp\n"
|
||||
" copy %r4,%r19\n"
|
||||
" bv %r0(%rp)\n"
|
||||
"_end_init:\n"
|
||||
" ldwm -64(%sp),%r4\n"
|
||||
"\n"
|
||||
"/* Our very own unwind info, because the assembler can't handle\n"
|
||||
" functions split into two or more pieces. */\n"
|
||||
" .section .PARISC.unwind,\"a\",@progbits\n"
|
||||
" .extern _init\n"
|
||||
" .word _init, _end_init\n"
|
||||
" .byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n"
|
||||
"\n"
|
||||
"/*@_init_EPILOG_ENDS*/\n"
|
||||
"\n"
|
||||
"/*@_fini_PROLOG_BEGINS*/\n"
|
||||
" .section .fini\n"
|
||||
" .align 4\n"
|
||||
" .globl _fini\n"
|
||||
" .type _fini,@function\n"
|
||||
"_fini:\n"
|
||||
" stw %rp,-20(%sp)\n"
|
||||
" stwm %r4,64(%sp)\n"
|
||||
" stw %r19,-32(%sp)\n"
|
||||
" copy %r19,%r4\n"
|
||||
"/*@_fini_PROLOG_ENDS*/\n"
|
||||
"\n"
|
||||
"/*@_fini_EPILOG_BEGINS*/\n"
|
||||
" .section .fini\n"
|
||||
" ldw -84(%sp),%rp\n"
|
||||
" copy %r4,%r19\n"
|
||||
" bv %r0(%rp)\n"
|
||||
"_end_fini:\n"
|
||||
" ldwm -64(%sp),%r4\n"
|
||||
"\n"
|
||||
" .section .PARISC.unwind,\"a\",@progbits\n"
|
||||
" .extern _fini\n"
|
||||
" .word _fini, _end_fini\n"
|
||||
" .byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n"
|
||||
"\n"
|
||||
"/*@_fini_EPILOG_ENDS*/\n"
|
||||
"\n"
|
||||
"/*@TRAILER_BEGINS*/\n"
|
||||
);
|
||||
238
sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
Normal file
238
sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
Normal file
@ -0,0 +1,238 @@
|
||||
/* cancellable system calls for Linux/HPPA.
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 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 <linuxthreads/internals.h>
|
||||
#endif
|
||||
|
||||
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
|
||||
|
||||
# ifndef NO_ERROR
|
||||
# define NO_ERROR -0x1000
|
||||
# endif
|
||||
|
||||
/* The syscall cancellation mechanism requires userspace
|
||||
assistance, the following code does roughly this:
|
||||
|
||||
do arguments (read arg5 and arg6 to registers)
|
||||
setup frame
|
||||
|
||||
check if there are threads, yes jump to pseudo_cancel
|
||||
|
||||
unthreaded:
|
||||
syscall
|
||||
check syscall return (jump to pre_end)
|
||||
set errno
|
||||
set return to -1
|
||||
(jump to pre_end)
|
||||
|
||||
pseudo_cancel:
|
||||
cenable
|
||||
syscall
|
||||
cdisable
|
||||
check syscall return (jump to pre_end)
|
||||
set errno
|
||||
set return to -1
|
||||
|
||||
pre_end
|
||||
restore stack
|
||||
|
||||
It is expected that 'ret' and 'END' macros will
|
||||
append an 'undo arguments' and 'return' to the
|
||||
this PSEUDO macro. */
|
||||
|
||||
# undef PSEUDO
|
||||
# define PSEUDO(name, syscall_name, args) \
|
||||
ENTRY (name) \
|
||||
DOARGS_##args ASM_LINE_SEP \
|
||||
copy TREG, %r1 ASM_LINE_SEP \
|
||||
copy %sp, TREG ASM_LINE_SEP \
|
||||
stwm %r1, 64(%sp) ASM_LINE_SEP \
|
||||
stw %rp, -20(%sp) ASM_LINE_SEP \
|
||||
stw TREG, -4(%sp) ASM_LINE_SEP \
|
||||
/* Done setting up frame, continue... */ ASM_LINE_SEP \
|
||||
SINGLE_THREAD_P ASM_LINE_SEP \
|
||||
cmpib,<>,n 0,%ret0,L(pseudo_cancel) ASM_LINE_SEP \
|
||||
L(unthreaded): ASM_LINE_SEP \
|
||||
/* Save r19 */ ASM_LINE_SEP \
|
||||
SAVE_PIC(TREG) ASM_LINE_SEP \
|
||||
/* Do syscall, delay loads # */ ASM_LINE_SEP \
|
||||
ble 0x100(%sr2,%r0) ASM_LINE_SEP \
|
||||
ldi SYS_ify (syscall_name), %r20 /* delay */ ASM_LINE_SEP \
|
||||
ldi NO_ERROR,%r1 ASM_LINE_SEP \
|
||||
cmpb,>>=,n %r1,%ret0,L(pre_end) ASM_LINE_SEP \
|
||||
/* Restore r19 from TREG */ ASM_LINE_SEP \
|
||||
LOAD_PIC(TREG) /* delay */ ASM_LINE_SEP \
|
||||
SYSCALL_ERROR_HANDLER ASM_LINE_SEP \
|
||||
/* Use TREG for temp storage */ ASM_LINE_SEP \
|
||||
copy %ret0, TREG /* delay */ ASM_LINE_SEP \
|
||||
/* OPTIMIZE: Don't reload r19 */ ASM_LINE_SEP \
|
||||
/* do a -1*syscall_ret0 */ ASM_LINE_SEP \
|
||||
sub %r0, TREG, TREG ASM_LINE_SEP \
|
||||
/* Store into errno location */ ASM_LINE_SEP \
|
||||
stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \
|
||||
b L(pre_end) ASM_LINE_SEP \
|
||||
/* return -1 as error */ ASM_LINE_SEP \
|
||||
ldo -1(%r0), %ret0 /* delay */ ASM_LINE_SEP \
|
||||
L(pseudo_cancel): ASM_LINE_SEP \
|
||||
PUSHARGS_##args /* Save args */ ASM_LINE_SEP \
|
||||
/* Save r19 into TREG */ ASM_LINE_SEP \
|
||||
CENABLE /* FUNC CALL */ ASM_LINE_SEP \
|
||||
SAVE_PIC(TREG) /* delay */ ASM_LINE_SEP \
|
||||
/* restore syscall args */ ASM_LINE_SEP \
|
||||
POPARGS_##args ASM_LINE_SEP \
|
||||
/* save mask from cenable (use stub rp slot) */ ASM_LINE_SEP \
|
||||
stw %ret0, -24(%sp) ASM_LINE_SEP \
|
||||
/* ... SYSCALL ... */ ASM_LINE_SEP \
|
||||
ble 0x100(%sr2,%r0) ASM_LINE_SEP \
|
||||
ldi SYS_ify (syscall_name), %r20 /* delay */ ASM_LINE_SEP \
|
||||
/* ............... */ ASM_LINE_SEP \
|
||||
LOAD_PIC(TREG) ASM_LINE_SEP \
|
||||
/* pass mask as arg0 to cdisable */ ASM_LINE_SEP \
|
||||
ldw -24(%sp), %r26 ASM_LINE_SEP \
|
||||
CDISABLE ASM_LINE_SEP \
|
||||
stw %ret0, -24(%sp) /* delay */ ASM_LINE_SEP \
|
||||
/* Restore syscall return */ ASM_LINE_SEP \
|
||||
ldw -24(%sp), %ret0 ASM_LINE_SEP \
|
||||
/* compare error */ ASM_LINE_SEP \
|
||||
ldi NO_ERROR,%r1 ASM_LINE_SEP \
|
||||
/* branch if no error */ ASM_LINE_SEP \
|
||||
cmpb,>>=,n %r1,%ret0,L(pre_end) ASM_LINE_SEP \
|
||||
LOAD_PIC(TREG) /* cond. nullify */ ASM_LINE_SEP \
|
||||
copy %ret0, TREG /* save syscall return */ ASM_LINE_SEP \
|
||||
SYSCALL_ERROR_HANDLER ASM_LINE_SEP \
|
||||
/* make syscall res value positive */ ASM_LINE_SEP \
|
||||
sub %r0, TREG, TREG /* delay */ ASM_LINE_SEP \
|
||||
/* No need to LOAD_PIC */ ASM_LINE_SEP \
|
||||
/* store into errno location */ ASM_LINE_SEP \
|
||||
stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \
|
||||
/* return -1 */ ASM_LINE_SEP \
|
||||
ldo -1(%r0), %ret0 ASM_LINE_SEP \
|
||||
L(pre_end): ASM_LINE_SEP \
|
||||
/* Restore rp before exit */ ASM_LINE_SEP \
|
||||
ldw -84(%sr0,%sp), %rp ASM_LINE_SEP \
|
||||
/* Undo frame */ ASM_LINE_SEP \
|
||||
ldwm -64(%sp),TREG ASM_LINE_SEP \
|
||||
/* No need to LOAD_PIC */ ASM_LINE_SEP
|
||||
|
||||
/* Save arguments into our frame */
|
||||
# define PUSHARGS_0 /* nothing to do */
|
||||
# define PUSHARGS_1 PUSHARGS_0 stw %r26, -36(%sr0,%sp) ASM_LINE_SEP
|
||||
# define PUSHARGS_2 PUSHARGS_1 stw %r25, -40(%sr0,%sp) ASM_LINE_SEP
|
||||
# define PUSHARGS_3 PUSHARGS_2 stw %r24, -44(%sr0,%sp) ASM_LINE_SEP
|
||||
# define PUSHARGS_4 PUSHARGS_3 stw %r23, -48(%sr0,%sp) ASM_LINE_SEP
|
||||
# define PUSHARGS_5 PUSHARGS_4 stw %r22, -52(%sr0,%sp) ASM_LINE_SEP
|
||||
# define PUSHARGS_6 PUSHARGS_5 stw %r21, -56(%sr0,%sp) ASM_LINE_SEP
|
||||
|
||||
/* Bring them back from the stack */
|
||||
# define POPARGS_0 /* nothing to do */
|
||||
# define POPARGS_1 POPARGS_0 ldw -36(%sr0,%sp), %r26 ASM_LINE_SEP
|
||||
# define POPARGS_2 POPARGS_1 ldw -40(%sr0,%sp), %r25 ASM_LINE_SEP
|
||||
# define POPARGS_3 POPARGS_2 ldw -44(%sr0,%sp), %r24 ASM_LINE_SEP
|
||||
# define POPARGS_4 POPARGS_3 ldw -48(%sr0,%sp), %r23 ASM_LINE_SEP
|
||||
# define POPARGS_5 POPARGS_4 ldw -52(%sr0,%sp), %r22 ASM_LINE_SEP
|
||||
# define POPARGS_6 POPARGS_5 ldw -56(%sr0,%sp), %r21 ASM_LINE_SEP
|
||||
|
||||
# ifdef IS_IN_libpthread
|
||||
# ifdef PIC
|
||||
# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# else
|
||||
# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# endif
|
||||
# elif !defined NOT_IN_libc
|
||||
# ifdef PIC
|
||||
# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# else
|
||||
# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# endif
|
||||
# else
|
||||
# ifdef PIC
|
||||
# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# else
|
||||
# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
|
||||
bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP
|
||||
# endif
|
||||
# endif
|
||||
|
||||
/* p_header.multiple_threads is +12 from the pthread_descr struct start,
|
||||
We could have called __get_cr27() but we really want less overhead */
|
||||
# define MULTIPLE_THREADS_OFFSET 0xC
|
||||
|
||||
/* cr27 has been initialized to 0x0 by kernel */
|
||||
# define NO_THREAD_CR27 0x0
|
||||
|
||||
# ifdef IS_IN_libpthread
|
||||
# define __local_multiple_threads __pthread_multiple_threads
|
||||
# elif !defined NOT_IN_libc
|
||||
# define __local_multiple_threads __libc_multiple_threads
|
||||
# else
|
||||
# define __local_multiple_threads __librt_multiple_threads
|
||||
# endif
|
||||
|
||||
# ifndef __ASSEMBLER__
|
||||
extern int __local_multiple_threads attribute_hidden;
|
||||
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
|
||||
# else
|
||||
/* This ALT version requires newer kernel support */
|
||||
# define SINGLE_THREAD_P_MFCTL \
|
||||
mfctl %cr27, %ret0 ASM_LINE_SEP \
|
||||
cmpib,= NO_THREAD_CR27,%ret0,L(stp) ASM_LINE_SEP \
|
||||
nop ASM_LINE_SEP \
|
||||
ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0 ASM_LINE_SEP \
|
||||
L(stp): ASM_LINE_SEP
|
||||
# ifdef PIC
|
||||
/* Slower version uses GOT to get value of __local_multiple_threads */
|
||||
# define SINGLE_THREAD_P \
|
||||
addil LT%__local_multiple_threads, %r19 ASM_LINE_SEP \
|
||||
ldw RT%__local_multiple_threads(%sr0,%r1), %ret0 ASM_LINE_SEP \
|
||||
ldw 0(%sr0,%ret0), %ret0 ASM_LINE_SEP
|
||||
# else
|
||||
/* Slow non-pic version using DP */
|
||||
# define SINGLE_THREAD_P \
|
||||
addil LR%__local_multiple_threads-$global$,%r27 ASM_LINE_SEP \
|
||||
ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0 ASM_LINE_SEP
|
||||
# endif
|
||||
# endif
|
||||
#elif !defined __ASSEMBLER__
|
||||
|
||||
/* This code should never be used but we define it anyhow. */
|
||||
# define SINGLE_THREAD_P (1)
|
||||
|
||||
#endif
|
||||
/* !defined NOT_IN_libc || defined IS_IN_libpthread */
|
||||
Loading…
Reference in New Issue
Block a user