diff options
Diffstat (limited to 'ports/sysdeps/ia64/nptl')
| -rw-r--r-- | ports/sysdeps/ia64/nptl/Makefile | 24 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/pthread_spin_lock.c | 35 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/pthread_spin_trylock.c | 27 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/pthread_spin_unlock.c | 27 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/pthreaddef.h | 42 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/shlib-versions | 1 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/tcb-offsets.sym | 7 | ||||
| -rw-r--r-- | ports/sysdeps/ia64/nptl/tls.h | 185 |
8 files changed, 348 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/nptl/Makefile b/ports/sysdeps/ia64/nptl/Makefile new file mode 100644 index 0000000000..6cbd8d3c9a --- /dev/null +++ b/ports/sysdeps/ia64/nptl/Makefile @@ -0,0 +1,24 @@ +# 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, see +# <http://www.gnu.org/licenses/>. + +ifeq ($(subdir),csu) +gen-as-const-headers += tcb-offsets.sym +endif + +ifeq ($(subdir),nptl) +libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask +endif diff --git a/ports/sysdeps/ia64/nptl/pthread_spin_lock.c b/ports/sysdeps/ia64/nptl/pthread_spin_lock.c new file mode 100644 index 0000000000..42b37882f5 --- /dev/null +++ b/ports/sysdeps/ia64/nptl/pthread_spin_lock.c @@ -0,0 +1,35 @@ +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.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, see + <http://www.gnu.org/licenses/>. */ + +#include "pthreadP.h" + +int +pthread_spin_lock (lock) + pthread_spinlock_t *lock; +{ + int *p = (int *) lock; + + while (__builtin_expect (__sync_val_compare_and_swap (p, 0, 1), 0)) + { + /* Spin without using the atomic instruction. */ + do + __asm __volatile ("hint @pause" : : : "memory"); + while (*p); + } + return 0; +} diff --git a/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c b/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c new file mode 100644 index 0000000000..9efd3b586b --- /dev/null +++ b/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.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, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include "pthreadP.h" + +int +pthread_spin_trylock (lock) + pthread_spinlock_t *lock; +{ + return __sync_val_compare_and_swap ((int *) lock, 0, 1) == 0 ? 0 : EBUSY; +} diff --git a/ports/sysdeps/ia64/nptl/pthread_spin_unlock.c b/ports/sysdeps/ia64/nptl/pthread_spin_unlock.c new file mode 100644 index 0000000000..e5a7d06600 --- /dev/null +++ b/ports/sysdeps/ia64/nptl/pthread_spin_unlock.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2003, 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.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, see + <http://www.gnu.org/licenses/>. */ + +#include "pthreadP.h" + + +int +pthread_spin_unlock (pthread_spinlock_t *lock) +{ + __sync_lock_release ((int *) lock); + return 0; +} diff --git a/ports/sysdeps/ia64/nptl/pthreaddef.h b/ports/sysdeps/ia64/nptl/pthreaddef.h new file mode 100644 index 0000000000..b2e8d0a369 --- /dev/null +++ b/ports/sysdeps/ia64/nptl/pthreaddef.h @@ -0,0 +1,42 @@ +/* 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, see + <http://www.gnu.org/licenses/>. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (32 * 1024 * 1024) + +/* IA-64 uses a normal stack and a register stack. */ +#define NEED_SEPARATE_REGISTER_STACK + +/* Required stack pointer alignment at beginning. */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 16384 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME __stack_pointer +register char *__stack_pointer __asm__ ("sp"); + +/* 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)) diff --git a/ports/sysdeps/ia64/nptl/shlib-versions b/ports/sysdeps/ia64/nptl/shlib-versions new file mode 100644 index 0000000000..90015eb151 --- /dev/null +++ b/ports/sysdeps/ia64/nptl/shlib-versions @@ -0,0 +1 @@ +ia64.*-.*-linux.* libpthread=0 GLIBC_2.2 diff --git a/ports/sysdeps/ia64/nptl/tcb-offsets.sym b/ports/sysdeps/ia64/nptl/tcb-offsets.sym new file mode 100644 index 0000000000..e1707ab1c8 --- /dev/null +++ b/ports/sysdeps/ia64/nptl/tcb-offsets.sym @@ -0,0 +1,7 @@ +#include <sysdep.h> +#include <tls.h> + +PID offsetof (struct pthread, pid) - TLS_PRE_TCB_SIZE +TID offsetof (struct pthread, tid) - TLS_PRE_TCB_SIZE +MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) - TLS_PRE_TCB_SIZE +SYSINFO_OFFSET offsetof (tcbhead_t, __private) diff --git a/ports/sysdeps/ia64/nptl/tls.h b/ports/sysdeps/ia64/nptl/tls.h new file mode 100644 index 0000000000..77574e55db --- /dev/null +++ b/ports/sysdeps/ia64/nptl/tls.h @@ -0,0 +1,185 @@ +/* Definition for thread-local data handling. nptl/IA-64 version. + Copyright (C) 2003-2007, 2011 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _TLS_H +#define _TLS_H 1 + +#include <dl-sysdep.h> +#ifndef __ASSEMBLER__ +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> +# include <stdlib.h> +# include <list.h> + + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + struct + { + void *val; + bool is_static; + } pointer; +} dtv_t; + + +typedef struct +{ + dtv_t *dtv; + void *__private; +} tcbhead_t; + +register struct pthread *__thread_self __asm__("r13"); + +# define TLS_MULTIPLE_THREADS_IN_TCB 1 + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif + + +/* Alignment requirement for the stack. */ +#define STACK_ALIGN 16 + +#ifndef __ASSEMBLER__ +/* Get system call information. */ +# include <sysdep.h> + +/* 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) + +/* This is the size we need before TCB. + If there is not any room for uintptr_t stack_guard and + uintptr_t pointer_guard in struct pthread's final padding, + we need to put struct pthread 16 byte slower. */ +# define TLS_PRE_TCB_SIZE \ + (sizeof (struct pthread) \ + + (PTHREAD_STRUCT_END_PADDING < 2 * sizeof (uintptr_t) \ + ? ((2 * sizeof (uintptr_t) + __alignof__ (struct pthread) - 1) \ + & ~(__alignof__ (struct pthread) - 1)) \ + : 0)) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN __alignof__ (struct pthread) + +/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ +# define TLS_DTV_AT_TP 1 + +/* Get the thread descriptor definition. */ +# include <nptl/descr.h> + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(descr, dtvp) \ + ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(DTV) \ + (((tcbhead_t *)__thread_self)->dtv = (DTV)) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(descr) \ + (((tcbhead_t *) (descr))->dtv) + +#define THREAD_SELF_SYSINFO (((tcbhead_t *) __thread_self)->__private) +#define THREAD_SYSINFO(pd) \ + (((tcbhead_t *) ((char *) (pd) + TLS_PRE_TCB_SIZE))->__private) + +#if defined NEED_DL_SYSINFO +# define INIT_SYSINFO THREAD_SELF_SYSINFO = (void *) GLRO(dl_sysinfo) +#else +# define INIT_SYSINFO NULL +#endif + +/* 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(thrdescr, secondcall) \ + (__thread_self = (thrdescr), INIT_SYSINFO, NULL) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + (((tcbhead_t *)__thread_self)->dtv) + +/* Return the thread descriptor for the current thread. */ +# define THREAD_SELF \ + ((struct pthread *) ((char *) __thread_self - TLS_PRE_TCB_SIZE)) + +/* Magic for libthread_db to know how to do THREAD_SELF. */ +# define DB_THREAD_SELF REGISTER (64, 64, 13 * 8, -TLS_PRE_TCB_SIZE) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + descr->member +#define THREAD_GETMEM_NC(descr, member, idx) \ + descr->member[idx] +#define THREAD_SETMEM(descr, member, value) \ + descr->member = (value) +#define THREAD_SETMEM_NC(descr, member, idx, value) \ + descr->member[idx] = (value) + +/* Set the stack guard field in TCB head. */ +#define THREAD_SET_STACK_GUARD(value) \ + (((uintptr_t *) __thread_self)[-1] = (value)) +#define THREAD_COPY_STACK_GUARD(descr) \ + (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-1] \ + = ((uintptr_t *) __thread_self)[-1]) + +/* Set the pointer guard field in TCB head. */ +#define THREAD_GET_POINTER_GUARD() \ + (((uintptr_t *) __thread_self)[-2]) +#define THREAD_SET_POINTER_GUARD(value) \ + (((uintptr_t *) __thread_self)[-2] = (value)) +#define THREAD_COPY_POINTER_GUARD(descr) \ + (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-2] \ + = THREAD_GET_POINTER_GUARD ()) + +/* Get and set the global scope generation counter in struct pthread. */ +#define THREAD_GSCOPE_FLAG_UNUSED 0 +#define THREAD_GSCOPE_FLAG_USED 1 +#define THREAD_GSCOPE_FLAG_WAIT 2 +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + { int __res \ + = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ + THREAD_GSCOPE_FLAG_UNUSED); \ + if (__res == THREAD_GSCOPE_FLAG_WAIT) \ + lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \ + } \ + while (0) +#define THREAD_GSCOPE_SET_FLAG() \ + do \ + { \ + THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ + atomic_write_barrier (); \ + } \ + while (0) +#define THREAD_GSCOPE_WAIT() \ + GL(dl_wait_lookup_done) () + +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ |