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Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2005 David Xu <davidxu@freebsd.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: src/lib/libthr/arch/arm/include/pthread_md.h,v 1.3 2005/10/29 13:40:31 davidxu
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* $FreeBSD$
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*/
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/*
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* Machine-dependent thread prototypes/definitions.
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*/
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#ifndef _PTHREAD_MD_H_
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#define _PTHREAD_MD_H_
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#include <sys/types.h>
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#include <machine/sysarch.h>
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#include <machine/tls.h>
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#include <stddef.h>
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#define CPU_SPINWAIT
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#define DTV_OFFSET offsetof(struct tcb, tcb_dtv)
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/*
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* Variant I tcb. The structure layout is fixed, don't blindly
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* change it!
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*/
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struct tcb {
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void *tcb_dtv;
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struct pthread *tcb_thread;
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};
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/* Called from the thread to set its private data. */
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static __inline void
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_tcb_set(struct tcb *tcb)
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{
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sysarch(MIPS_SET_TLS, tcb);
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}
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/*
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* Get the current tcb.
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*/
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#ifdef TLS_USE_SYSARCH
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static __inline struct tcb *
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_tcb_get(void)
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{
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struct tcb *tcb;
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sysarch(MIPS_GET_TLS, &tcb);
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return tcb;
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}
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#else /* ! TLS_USE_SYSARCH */
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# if defined(__mips_n64)
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static __inline struct tcb *
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_tcb_get(void)
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{
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uint64_t _rv;
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__asm__ __volatile__ (
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".set\tpush\n\t"
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".set\tmips64r2\n\t"
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"rdhwr\t%0, $29\n\t"
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".set\tpop"
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: "=r" (_rv));
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/*
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* XXXSS See 'git show c6be4f4d2d1b71c04de5d3bbb6933ce2dbcdb317'
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*
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* Remove the offset since this really a request to get the TLS
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* pointer via sysarch() (in theory). Of course, this may go away
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* once the TLS code is rewritten.
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*/
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return (struct tcb *)(_rv - TLS_TP_OFFSET - TLS_TCB_SIZE);
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}
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# else /* mips 32 */
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static __inline struct tcb *
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_tcb_get(void)
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{
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uint32_t _rv;
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__asm__ __volatile__ (
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".set\tpush\n\t"
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".set\tmips32r2\n\t"
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"rdhwr\t%0, $29\n\t"
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".set\tpop"
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: "=r" (_rv));
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/*
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* XXXSS See 'git show c6be4f4d2d1b71c04de5d3bbb6933ce2dbcdb317'
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*
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* Remove the offset since this really a request to get the TLS
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* pointer via sysarch() (in theory). Of course, this may go away
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* once the TLS code is rewritten.
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*/
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return (struct tcb *)(_rv - TLS_TP_OFFSET - TLS_TCB_SIZE);
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}
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# endif /* ! __mips_n64 */
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#endif /* ! TLS_USE_SYSARCH */
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static __inline struct pthread *
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_get_curthread(void)
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{
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if (_thr_initial)
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return (_tcb_get()->tcb_thread);
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return (NULL);
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}
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#endif /* _PTHREAD_MD_H_ */
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