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d5d97bed4a
In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 when building with -m32. Ifdef the arm64 headers that
are installed in /usr/include/machine and used by user-level software
(including references from /usr/include/*.h) so that if __arm__ is
defined when including the arm64 version, <arm/foo.h> is included
rather than using the rest of the file's contents. Some arm headers
had no arm64 equivalent; headers were added just to do the redirection.
These files use #error if __arm__ is not defined to guard against
confusion. Also add an include/arm Makefile, and modify Makefiles
as needed to install everything, including the arm files in
/usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h.
The new arm64 headers are:
acle-compat.h
cpuinfo.h
sysreg.h
Reviewed by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40944
62 lines
2 KiB
C
62 lines
2 KiB
C
/*-
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* Copyright (c) 2005 David Xu <davidxu@freebsd.org>.
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* Copyright (c) 2014 the FreeBSD Foundation
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* All rights reserved.
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*
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* Portions of this software were developed by Andrew Turner
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* under sponsorship from the FreeBSD Foundation
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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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#ifdef __arm__
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#include <arm/tls.h>
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#else /* !__arm__ */
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#ifndef _MACHINE_TLS_H_
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#define _MACHINE_TLS_H_
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#include <sys/_tls_variant_i.h>
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#define TLS_DTV_OFFSET 0
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#define TLS_TCB_ALIGN 16
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#define TLS_TP_OFFSET 0
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static __inline void
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_tcb_set(struct tcb *tcb)
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{
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__asm __volatile("msr tpidr_el0, %x0" :: "r" (tcb));
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}
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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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__asm __volatile("mrs %x0, tpidr_el0" : "=r" (tcb));
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return (tcb);
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}
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#endif /* !_MACHINE_TLS_H_ */
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#endif /* !__arm__ */
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