Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> --- ChangeLog | 3 ++ sysdeps/arc/atomic-machine.h | 89 +++++++++++++++++++++++++++++++ sysdeps/arc/nptl/bits/pthreadtypes-arch.h | 72 +++++++++++++++++++++++++ sysdeps/arc/nptl/bits/semaphore.h | 32 +++++++++++ 4 files changed, 196 insertions(+) create mode 100644 sysdeps/arc/atomic-machine.h create mode 100644 sysdeps/arc/nptl/bits/pthreadtypes-arch.h create mode 100644 sysdeps/arc/nptl/bits/semaphore.h diff --git a/ChangeLog b/ChangeLog index 6e53b171a72d..d2f6cd2d0d09 100644 --- a/ChangeLog +++ b/ChangeLog @@ -35,6 +35,9 @@ * sysdeps/arc/nptl/tcb-offsets.sym: New file. * sysdeps/arc/nptl/tls.h: New file. * sysdeps/arc/stackinfo.h: New file. + * sysdeps/arc/atomic-machine.h: New file. + * sysdeps/arc/nptl/bits/pthreadtypes-arch.h: New file. + * sysdeps/arc/nptl/bits/semaphore.h: New file. 2018-12-17 Joseph Myers <joseph@xxxxxxxxxxxxxxxx> diff --git a/sysdeps/arc/atomic-machine.h b/sysdeps/arc/atomic-machine.h new file mode 100644 index 000000000000..1a8d976794d0 --- /dev/null +++ b/sysdeps/arc/atomic-machine.h @@ -0,0 +1,89 @@ +/* Low-level functions for atomic operations. ARC 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/>. */ + +#ifndef _ARC_BITS_ATOMIC_H +#define _ARC_BITS_ATOMIC_H 1 + +#include <stdint.h> + +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 intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + +#define __HAVE_64B_ATOMICS 0 +#define USE_ATOMIC_COMPILER_BUILTINS 0 +#define ATOMIC_EXCHANGE_USES_CAS 1 + +#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \ + (abort (), (__typeof (*mem)) 0) +#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \ + (abort (), (__typeof (*mem)) 0) +#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + (abort (), (__typeof (*mem)) 0) + +#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \ + (abort (), 0) +#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \ + (abort (), 0) +#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \ + (abort (), 0) + +#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ + ({ \ + __typeof(*(mem)) prev; \ + \ + __asm__ __volatile__( \ + "1: llock %0, [%1] \n" \ + " brne %0, %2, 2f \n" \ + " scond %3, [%1] \n" \ + " bnz 1b \n" \ + "2: \n" \ + : "=&r"(prev) \ + : "r"(mem), "ir"(oldval), \ + "r"(newval) /* can't be "ir". scond can't take limm for "b" */\ + : "cc", "memory"); \ + \ + prev; \ + }) + +# define atomic_exchange_acq(mem, newvalue) \ + ({ \ + __typeof(*(mem)) __val = (newvalue); \ + \ + __asm__ __volatile__( \ + "1: ex %0, [%1] \n" \ + : "+r"(__val) \ + : "r"(mem) \ + : "memory"); \ + \ + __val; \ + }) + +#ifdef __ARC700__ +#define atomic_full_barrier() ({ asm volatile ("sync":::"memory"); }) +#else +#define atomic_full_barrier() ({ asm volatile ("dmb 3":::"memory"); }) +#endif + +#endif /* _ARC_BITS_ATOMIC_H */ diff --git a/sysdeps/arc/nptl/bits/pthreadtypes-arch.h b/sysdeps/arc/nptl/bits/pthreadtypes-arch.h new file mode 100644 index 000000000000..473d9ec2bf0d --- /dev/null +++ b/sysdeps/arc/nptl/bits/pthreadtypes-arch.h @@ -0,0 +1,72 @@ +/* Machine-specific pthread type layouts. ARC 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/>. */ + +#ifndef _BITS_PTHREADTYPES_ARCH_H +#define _BITS_PTHREADTYPES_ARCH_H 1 + +#include <endian.h> + +#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 + +/* 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 1 +#define __PTHREAD_MUTEX_USE_UNION 1 + +#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 __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __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; +#endif + int __cur_writer; +}; + +#define __PTHREAD_RWLOCK_ELISION_EXTRA 0 + +#endif /* bits/pthreadtypes-arch.h */ diff --git a/sysdeps/arc/nptl/bits/semaphore.h b/sysdeps/arc/nptl/bits/semaphore.h new file mode 100644 index 000000000000..1ecc8ab8a65b --- /dev/null +++ b/sysdeps/arc/nptl/bits/semaphore.h @@ -0,0 +1,32 @@ +/* Machine-specific POSIX semaphore type layouts. ARC version. + 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/>. */ + +#ifndef _SEMAPHORE_H +# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." +#endif + +#define __SIZEOF_SEM_T 16 + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) 0) + +typedef union +{ + char __size[__SIZEOF_SEM_T]; + long int __align; +} sem_t; -- 2.7.4 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
