diff options
Diffstat (limited to 'sysdeps/riscv')
| -rw-r--r-- | sysdeps/riscv/nptl/bits/pthreadtypes-arch.h | 68 | ||||
| -rw-r--r-- | sysdeps/riscv/nptl/bits/semaphore.h | 33 | ||||
| -rw-r--r-- | sysdeps/riscv/nptl/libc-lowlevellock.c | 8 |
3 files changed, 109 insertions, 0 deletions
diff --git a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h new file mode 100644 index 0000000000..f6a55b6233 --- /dev/null +++ b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h @@ -0,0 +1,68 @@ +/* Machine-specific pthread type layouts. RISC-V version. + Copyright (C) 2011-2018 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> + +#if __riscv_xlen == 64 +# define __SIZEOF_PTHREAD_ATTR_T 56 +# define __SIZEOF_PTHREAD_MUTEX_T 40 +# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +# define __SIZEOF_PTHREAD_COND_T 48 +# define __SIZEOF_PTHREAD_CONDATTR_T 4 +# define __SIZEOF_PTHREAD_RWLOCK_T 56 +# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +# define __SIZEOF_PTHREAD_BARRIER_T 32 +# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 +#else +# error "rv32i-based systems are not supported" +#endif + +#define __PTHREAD_COMPAT_PADDING_MID +#define __PTHREAD_COMPAT_PADDING_END +#define __PTHREAD_MUTEX_LOCK_ELISION 0 +#define __PTHREAD_MUTEX_USE_UNION 0 +#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND 0 + +#define __LOCK_ALIGNMENT +#define __ONCE_ALIGNMENT + +/* There is a lot of padding in this structure. While it's not strictly + necessary on RISC-V, we're going to leave it in to be on the safe side in + case it's needed in the future. Most other architectures have the padding, + so this gives us the same extensibility as everyone else has. */ +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; + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + unsigned int __flags; +}; + +#define __PTHREAD_RWLOCK_ELISION_EXTRA 0 + +#endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/riscv/nptl/bits/semaphore.h b/sysdeps/riscv/nptl/bits/semaphore.h new file mode 100644 index 0000000000..2fed17d0e5 --- /dev/null +++ b/sysdeps/riscv/nptl/bits/semaphore.h @@ -0,0 +1,33 @@ +/* Machine-specific POSIX semaphore type layouts. RISC-V 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 (4 * __SIZEOF_POINTER__) + +/* 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/riscv/nptl/libc-lowlevellock.c b/sysdeps/riscv/nptl/libc-lowlevellock.c new file mode 100644 index 0000000000..9523fb46a5 --- /dev/null +++ b/sysdeps/riscv/nptl/libc-lowlevellock.c @@ -0,0 +1,8 @@ +/* This kludge works around a libpthread static linking problem: + https://sourceware.org/bugzilla/show_bug.cgi?id=15648. */ + +#ifndef SHARED +# define __lll_lock_wait_private weak_function __lll_lock_wait_private +#endif + +#include <lowlevellock.c> |