cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rwsem.c (710B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include "util.h"
      3#include "rwsem.h"
      4
      5int init_rwsem(struct rw_semaphore *sem)
      6{
      7	return pthread_rwlock_init(&sem->lock, NULL);
      8}
      9
     10int exit_rwsem(struct rw_semaphore *sem)
     11{
     12	return pthread_rwlock_destroy(&sem->lock);
     13}
     14
     15int down_read(struct rw_semaphore *sem)
     16{
     17	return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
     18}
     19
     20int up_read(struct rw_semaphore *sem)
     21{
     22	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
     23}
     24
     25int down_write(struct rw_semaphore *sem)
     26{
     27	return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
     28}
     29
     30int up_write(struct rw_semaphore *sem)
     31{
     32	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
     33}