a05a278552
ucontext_t available. Our code even has XXX comment about this. Add a bit of compliance by moving struct __ucontext definition into sys/_ucontext.h and including it into signal.h and sys/ucontext.h. Several machine/ucontext.h headers were changed to use namespace-safe types (like uint64_t->__uint64_t) to not depend on sys/types.h. struct __stack_t from sys/signal.h is made always visible in private namespace to satisfy sys/_ucontext.h requirements. Apparently mips _types.h pollutes global namespace with f_register_t type definition. This commit does not try to fix the issue. PR: 207079 Reported and tested by: Ting-Wei Lan <lantw44@gmail.com> Sponsored by: The FreeBSD Foundation MFC after: 2 weeks
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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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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* 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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ucontext.h 8.1 (Berkeley) 6/10/93
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* JNPR: ucontext.h,v 1.2 2007/08/09 11:23:32 katta
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* $FreeBSD$
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*/
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#ifndef _MACHINE_UCONTEXT_H_
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#define _MACHINE_UCONTEXT_H_
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#ifndef _LOCORE
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#if defined(_KERNEL) && !defined(KLD_MODULE) && !defined(_STANDALONE)
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#include "opt_compat.h"
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#endif
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typedef struct __mcontext {
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/*
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* These fields must match the corresponding fields in struct
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* sigcontext which follow 'sc_mask'. That way we can support
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* struct sigcontext and ucontext_t at the same time.
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*/
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int mc_onstack; /* sigstack state to restore */
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__register_t mc_pc; /* pc at time of signal */
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__register_t mc_regs[32]; /* processor regs 0 to 31 */
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__register_t sr; /* status register */
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__register_t mullo, mulhi; /* mullo and mulhi registers... */
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int mc_fpused; /* fp has been used */
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f_register_t mc_fpregs[33]; /* fp regs 0 to 31 and csr */
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__register_t mc_fpc_eir; /* fp exception instruction reg */
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void *mc_tls; /* pointer to TLS area */
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int __spare__[8]; /* XXX reserved */
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} mcontext_t;
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#if (defined(__mips_n32) || defined(__mips_n64)) && defined(COMPAT_FREEBSD32)
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#include <compat/freebsd32/freebsd32_signal.h>
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typedef struct __mcontext32 {
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int mc_onstack;
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int32_t mc_pc;
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int32_t mc_regs[32];
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int32_t sr;
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int32_t mullo, mulhi;
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int mc_fpused;
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int32_t mc_fpregs[33];
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int32_t mc_fpc_eir;
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int32_t mc_tls;
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int __spare__[8];
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} mcontext32_t;
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typedef struct __ucontext32 {
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sigset_t uc_sigmask;
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mcontext32_t uc_mcontext;
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uint32_t uc_link;
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struct sigaltstack32 uc_stack;
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uint32_t uc_flags;
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uint32_t __spare__[4];
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} ucontext32_t;
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#endif
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#endif
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#ifndef SZREG
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#if defined(__mips_o32)
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#define SZREG 4
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#else
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#define SZREG 8
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#endif
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#endif
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/* offsets into mcontext_t */
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#define UCTX_REG(x) (4 + SZREG + (x)*SZREG)
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#define UCR_ZERO UCTX_REG(0)
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#define UCR_AT UCTX_REG(1)
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#define UCR_V0 UCTX_REG(2)
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#define UCR_V1 UCTX_REG(3)
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#define UCR_A0 UCTX_REG(4)
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#define UCR_A1 UCTX_REG(5)
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#define UCR_A2 UCTX_REG(6)
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#define UCR_A3 UCTX_REG(7)
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#define UCR_T0 UCTX_REG(8)
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#define UCR_T1 UCTX_REG(9)
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#define UCR_T2 UCTX_REG(10)
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#define UCR_T3 UCTX_REG(11)
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#define UCR_T4 UCTX_REG(12)
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#define UCR_T5 UCTX_REG(13)
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#define UCR_T6 UCTX_REG(14)
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#define UCR_T7 UCTX_REG(15)
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#define UCR_S0 UCTX_REG(16)
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#define UCR_S1 UCTX_REG(17)
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#define UCR_S2 UCTX_REG(18)
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#define UCR_S3 UCTX_REG(19)
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#define UCR_S4 UCTX_REG(20)
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#define UCR_S5 UCTX_REG(21)
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#define UCR_S6 UCTX_REG(22)
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#define UCR_S7 UCTX_REG(23)
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#define UCR_T8 UCTX_REG(24)
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#define UCR_T9 UCTX_REG(25)
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#define UCR_K0 UCTX_REG(26)
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#define UCR_K1 UCTX_REG(27)
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#define UCR_GP UCTX_REG(28)
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#define UCR_SP UCTX_REG(29)
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#define UCR_S8 UCTX_REG(30)
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#define UCR_RA UCTX_REG(31)
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#define UCR_SR UCTX_REG(32)
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#define UCR_MDLO UCTX_REG(33)
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#define UCR_MDHI UCTX_REG(34)
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#endif /* !_MACHINE_UCONTEXT_H_ */
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