diff options
Diffstat (limited to 'sysdeps/tile/nptl')
| -rw-r--r-- | sysdeps/tile/nptl/Makefile | 20 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/bits/pthreadtypes-arch.h | 81 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/bits/semaphore.h | 41 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/pthread-offsets.h | 15 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/pthread_spin_lock.c | 50 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/pthread_spin_trylock.c | 28 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/pthread_spin_unlock.c | 28 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/pthreaddef.h | 36 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/tcb-offsets.sym | 16 | ||||
| -rw-r--r-- | sysdeps/tile/nptl/tls.h | 185 |
10 files changed, 0 insertions, 500 deletions
diff --git a/sysdeps/tile/nptl/Makefile b/sysdeps/tile/nptl/Makefile deleted file mode 100644 index 60e19c76a0..0000000000 --- a/sysdeps/tile/nptl/Makefile +++ /dev/null @@ -1,20 +0,0 @@ -# Copyright (C) 2002-2018 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 diff --git a/sysdeps/tile/nptl/bits/pthreadtypes-arch.h b/sysdeps/tile/nptl/bits/pthreadtypes-arch.h deleted file mode 100644 index 7c0844f4e3..0000000000 --- a/sysdeps/tile/nptl/bits/pthreadtypes-arch.h +++ /dev/null @@ -1,81 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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 _BITS_PTHREADTYPES_ARCH_H -#define _BITS_PTHREADTYPES_ARCH_H 1 - -#include <bits/wordsize.h> - -#if __WORDSIZE == 64 -# define __SIZEOF_PTHREAD_MUTEX_T 40 -# define __SIZEOF_PTHREAD_ATTR_T 56 -# define __SIZEOF_PTHREAD_RWLOCK_T 56 -# define __SIZEOF_PTHREAD_BARRIER_T 32 -#else -# define __SIZEOF_PTHREAD_MUTEX_T 24 -# define __SIZEOF_PTHREAD_ATTR_T 36 -# define __SIZEOF_PTHREAD_RWLOCK_T 32 -# define __SIZEOF_PTHREAD_BARRIER_T 20 -#endif -#define __SIZEOF_PTHREAD_MUTEXATTR_T 4 -#define __SIZEOF_PTHREAD_COND_T 48 -#define __SIZEOF_PTHREAD_CONDATTR_T 4 -#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 -#define __SIZEOF_PTHREAD_BARRIERATTR_T 4 - -/* Data structure for mutex handling. */ -#define __PTHREAD_COMPAT_PADDING_MID -#define __PTHREAD_COMPAT_PADDING_END -#define __PTHREAD_MUTEX_LOCK_ELISION 0 -#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND (__WORDSIZE != 64) -#define __PTHREAD_MUTEX_USE_UNION (__WORDSIZE != 64) - -#define __LOCK_ALIGNMENT -#define __ONCE_ALIGNMENT - -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __WORDSIZE == 64 - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -#else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; - int __cur_writer; -#endif -}; - -#define __PTHREAD_RWLOCK_ELISION_EXTRA 0 - -#endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/tile/nptl/bits/semaphore.h b/sysdeps/tile/nptl/bits/semaphore.h deleted file mode 100644 index 733ba8a707..0000000000 --- a/sysdeps/tile/nptl/bits/semaphore.h +++ /dev/null @@ -1,41 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - 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 _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) - - -typedef union -{ - char __size[__SIZEOF_SEM_T]; - long int __align; -} sem_t; diff --git a/sysdeps/tile/nptl/pthread-offsets.h b/sysdeps/tile/nptl/pthread-offsets.h deleted file mode 100644 index bdda1f197e..0000000000 --- a/sysdeps/tile/nptl/pthread-offsets.h +++ /dev/null @@ -1,15 +0,0 @@ -#include <bits/wordsize.h> - -#if __WORDSIZE == 64 -# define __PTHREAD_MUTEX_NUSERS_OFFSET 12 -# define __PTHREAD_MUTEX_KIND_OFFSET 16 -# define __PTHREAD_MUTEX_SPINS_OFFSET 20 -# define __PTHREAD_MUTEX_ELISION_OFFSET 22 -# define __PTHREAD_MUTEX_LIST_OFFSET 24 -#else -# define __PTHREAD_MUTEX_NUSERS_OFFSET 16 -# define __PTHREAD_MUTEX_KIND_OFFSET 12 -# define __PTHREAD_MUTEX_SPINS_OFFSET 20 -# define __PTHREAD_MUTEX_ELISION_OFFSET 22 -# define __PTHREAD_MUTEX_LIST_OFFSET 20 -#endif diff --git a/sysdeps/tile/nptl/pthread_spin_lock.c b/sysdeps/tile/nptl/pthread_spin_lock.c deleted file mode 100644 index 94f5f1bd1e..0000000000 --- a/sysdeps/tile/nptl/pthread_spin_lock.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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" -#include <arch/spr_def.h> -#include <atomic.h> - -/* Bound point for bounded exponential backoff */ -#define BACKOFF_MAX 2048 - -/* Initial cycle delay for exponential backoff */ -#define BACKOFF_START 32 - -/* Use cmpexch() after the initial fast-path exch to avoid - invalidating the cache line of the lock holder. */ -#define TNS(p) atomic_exchange_acq((p), 1) -#define CMPTNS(p) atomic_compare_and_exchange_val_acq((p), 1, 0) - -int -pthread_spin_lock (pthread_spinlock_t *lock) -{ - if (__builtin_expect (TNS (lock) != 0, 0)) - { - unsigned int backoff = BACKOFF_START; - while (CMPTNS (lock) != 0) - { - unsigned int start = __insn_mfspr (SPR_CYCLE); - while (__insn_mfspr (SPR_CYCLE) - start < backoff) - ; - if (backoff < BACKOFF_MAX) - backoff *= 2; - } - } - return 0; -} diff --git a/sysdeps/tile/nptl/pthread_spin_trylock.c b/sysdeps/tile/nptl/pthread_spin_trylock.c deleted file mode 100644 index 7e549a5c07..0000000000 --- a/sysdeps/tile/nptl/pthread_spin_trylock.c +++ /dev/null @@ -1,28 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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" -#include <errno.h> - -#define TNS(p) __insn_exch4((p), 1) - -int -pthread_spin_trylock (pthread_spinlock_t *lock) -{ - return (TNS (lock) == 0) ? 0 : EBUSY; -} diff --git a/sysdeps/tile/nptl/pthread_spin_unlock.c b/sysdeps/tile/nptl/pthread_spin_unlock.c deleted file mode 100644 index f356747a84..0000000000 --- a/sysdeps/tile/nptl/pthread_spin_unlock.c +++ /dev/null @@ -1,28 +0,0 @@ -/* pthread_spin_unlock -- unlock a spin lock. Tile version. - Copyright (C) 2012-2018 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/>. */ - -#include "pthreadP.h" -#include <atomic.h> - -int -pthread_spin_unlock (pthread_spinlock_t *lock) -{ - /* Use exchange() to bypass the write buffer. */ - atomic_exchange_rel (lock, 0); - return 0; -} diff --git a/sysdeps/tile/nptl/pthreaddef.h b/sysdeps/tile/nptl/pthreaddef.h deleted file mode 100644 index a1c00620bf..0000000000 --- a/sysdeps/tile/nptl/pthreaddef.h +++ /dev/null @@ -1,36 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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 <stdlib.h> -#include <string.h> - -/* Default stack size. */ -#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) - -/* Required stack pointer alignment at beginning. */ -#define STACK_ALIGN 16 - -/* Minimal stack size after allocating thread descriptor and guard size. */ -#define MINIMAL_REST_STACK 2048 - -/* Alignment requirement for TCB. */ -#define TCB_ALIGNMENT 16 - - -/* Location of current stack frame. */ -#define CURRENT_STACK_FRAME __builtin_frame_address (0) diff --git a/sysdeps/tile/nptl/tcb-offsets.sym b/sysdeps/tile/nptl/tcb-offsets.sym deleted file mode 100644 index 0147ffafb7..0000000000 --- a/sysdeps/tile/nptl/tcb-offsets.sym +++ /dev/null @@ -1,16 +0,0 @@ -#define SHARED /* needed to get struct rtld_global from <ldsodefs.h> */ -#include <sysdep.h> -#include <tls.h> -#include <ldsodefs.h> - --- - --- Abuse tls.h macros to derive offsets relative to the thread register. -#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) - -MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads) -TID_OFFSET thread_offsetof (tid) -POINTER_GUARD (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) -FEEDBACK_DATA_OFFSET (offsetof (tcbhead_t, feedback_data) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) -DTV_OFFSET (offsetof (tcbhead_t, dtv) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) -TLS_GENERATION_OFFSET offsetof (struct rtld_global, _dl_tls_generation) diff --git a/sysdeps/tile/nptl/tls.h b/sysdeps/tile/nptl/tls.h deleted file mode 100644 index 45d6c53e21..0000000000 --- a/sysdeps/tile/nptl/tls.h +++ /dev/null @@ -1,185 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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 <dl-dtv.h> - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - - -#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 -# define TLS_TCB_AT_TP 0 - -/* We use the multiple_threads field in the pthread struct */ -#define TLS_MULTIPLE_THREADS_IN_TCB 1 - -/* Get the thread descriptor definition. */ -# include <nptl/descr.h> - -/* The stack_guard is accessed directly by GCC -fstack-protector code, - so it is a part of public ABI. The dtv and pointer_guard fields - are private. */ -typedef struct -{ - void *feedback_data; - uintptr_t pointer_guard; - uintptr_t stack_guard; - dtv_t *dtv; -} tcbhead_t; - -/* This is the size of the initial TCB. Because our TCB is before the thread - pointer, we don't need this. */ -# define TLS_INIT_TCB_SIZE 0 - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread) - -/* This is the size of the TCB. Because our TCB is before the thread - pointer, we don't need this. */ -# define TLS_TCB_SIZE 0 - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct pthread) - -/* This is the size we need before TCB - actually, it includes the TCB. */ -# define TLS_PRE_TCB_SIZE \ - (sizeof (struct pthread) \ - + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1))) - -/* Return the thread descriptor (tp) for the current thread. */ -register void *__thread_pointer asm ("tp"); - -/* The thread pointer (in hardware register tp) points to the end of - the TCB. The pthread_descr structure is immediately in front of the TCB. */ -# define TLS_TCB_OFFSET 0 - -/* 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))[-1].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))[-1].dtv) - -/* Code to initially initialize the thread pointer (tp). */ -# define TLS_INIT_TP(tcbp) \ - (__thread_pointer = (char *)(tcbp) + TLS_TCB_OFFSET, NULL) - -/* Value passed to 'clone' for initialization of the thread register. */ -# define TLS_DEFINE_INIT_TP(tp, pd) \ - void *tp = (void *) (pd) + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) (__thread_pointer - TLS_TCB_OFFSET))[-1].dtv) - -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF \ - ((struct pthread *) (__thread_pointer \ - - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) - -/* Magic for libthread_db to know how to do THREAD_SELF. */ -# define DB_THREAD_SELF \ - REGISTER (64, 64, REG_TP * 8, - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) - -/* Read member of the thread descriptor directly. */ -# define THREAD_GETMEM(descr, member) (descr->member) - -/* Same as THREAD_GETMEM, but the member offset can be non-constant. */ -# define THREAD_GETMEM_NC(descr, member, idx) \ - (descr->member[idx]) - -/* Set member of the thread descriptor directly. */ -# define THREAD_SETMEM(descr, member, value) \ - (descr->member = (value)) - -/* Same as THREAD_SETMEM, but the member offset can be non-constant. */ -# 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) \ - (((tcbhead_t *) ((char *) __thread_pointer \ - - TLS_TCB_OFFSET))[-1].stack_guard = (value)) -# define THREAD_COPY_STACK_GUARD(descr) \ - (((tcbhead_t *) ((char *) (descr) \ - + TLS_PRE_TCB_SIZE))[-1].stack_guard \ - = ((tcbhead_t *) ((char *) __thread_pointer \ - - TLS_TCB_OFFSET))[-1].stack_guard) - -/* Set the pointer guard field in TCB head. */ -# define THREAD_GET_POINTER_GUARD() \ - (((tcbhead_t *) ((char *) __thread_pointer \ - - TLS_TCB_OFFSET))[-1].pointer_guard) -# define THREAD_SET_POINTER_GUARD(value) \ - (THREAD_GET_POINTER_GUARD () = (value)) -# define THREAD_COPY_POINTER_GUARD(descr) \ - (((tcbhead_t *) ((char *) (descr) \ - + TLS_PRE_TCB_SIZE))[-1].pointer_guard \ - = THREAD_GET_POINTER_GUARD()) - -/* l_tls_offset == 0 is perfectly valid on Tile, so we have to use some - different value to mean unset l_tls_offset. */ -# define NO_TLS_OFFSET -1 - -/* Get and set the global scope generation counter in struct pthread. */ -#define THREAD_GSCOPE_IN_TCB 1 -#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 */ |