2ccc0da0c7
getopt() in the FLAT build environment is not thread safe. This is because global variables that are process-specific in Unix are truly global in the FLAT build. Moving the getopt() variables into TLS resolves this issue. No side-effects are expected other than to getopt() Tested with sim:nsh
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/****************************************************************************
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* sched/group/group_taskdata.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sched.h>
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#include <assert.h>
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#include <nuttx/tls.h>
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#include "group/group.h"
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#ifndef CONFIG_BUILD_KERNEL
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tls_set_taskdata
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*
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* Description:
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* Set task-specific data pointer in TLS.
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*
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* Input Parameters:
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* tcb - Identifies task to set TLS data
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void tls_set_taskdata(FAR struct tcb_s *tcb)
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{
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FAR struct tls_info_s *info;
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FAR struct task_group_s *group;
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DEBUGASSERT(tcb != NULL && tcb->group != NULL);
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group = tcb->group;
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/* This currently assumes a push-down stack. The TLS data lies at the
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* lowest address of the stack allocation.
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*/
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info = (FAR struct tls_info_s *)tcb->stack_alloc_ptr;
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/* Copy the task data point buffer in the group structure into the
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* thread's TLS data.
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*/
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info->tl_libvars = group->tg_libvars;
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}
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#endif /* !CONFIG_BUILD_KERNEL */ |