0fcefb433d
The NetBSD Foundation states "Third parties are encouraged to change the license on any files which have a 4-clause license contributed to the NetBSD Foundation to a 2-clause license." This change removes clauses 3 and 4 from copyright / license blocks that list The NetBSD Foundation as the only copyright holder. Sponsored by: The FreeBSD Foundation
190 lines
6.6 KiB
C
190 lines
6.6 KiB
C
/* $NetBSD: kgdb_machdep.c,v 1.11 2005/12/24 22:45:35 perry Exp $ */
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/*-
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* Copyright (c) 2004 Marcel Moolenaar
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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 AUTHORS ``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 AUTHORS 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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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1996 Matthias Pfaller.
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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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Matthias Pfaller.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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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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* JNPR: gdb_machdep.c,v 1.1 2007/08/09 12:25:25 katta
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kdb.h>
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#include <sys/kernel.h>
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#include <sys/signal.h>
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#include <sys/pcpu.h>
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#include <machine/gdb_machdep.h>
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#include <machine/pcb.h>
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#include <machine/reg.h>
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#include <machine/trap.h>
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#include <gdb/gdb.h>
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void *
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gdb_cpu_getreg(int regnum, size_t *regsz)
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{
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*regsz = gdb_cpu_regsz(regnum);
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if (kdb_thread == curthread) {
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register_t *zero_ptr = &kdb_frame->zero;
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return zero_ptr + regnum;
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}
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switch (regnum) {
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/*
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* S0..S7
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*/
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case 16:
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case 17:
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case 18:
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case 19:
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case 20:
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case 21:
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case 22:
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case 23:
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return (&kdb_thrctx->pcb_context[PCB_REG_S0 + regnum - 16]);
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case 28:
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return (&kdb_thrctx->pcb_context[PCB_REG_GP]);
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case 29:
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return (&kdb_thrctx->pcb_context[PCB_REG_SP]);
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case 30:
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return (&kdb_thrctx->pcb_context[PCB_REG_S8]);
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case 31:
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return (&kdb_thrctx->pcb_context[PCB_REG_RA]);
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case 37:
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return (&kdb_thrctx->pcb_context[PCB_REG_PC]);
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}
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return (NULL);
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}
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void
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gdb_cpu_setreg(int regnum, void *val)
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{
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switch (regnum) {
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case GDB_REG_PC:
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kdb_thrctx->pcb_context[10] = *(register_t *)val;
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if (kdb_thread == curthread)
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kdb_frame->pc = *(register_t *)val;
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}
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}
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int
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gdb_cpu_signal(int entry, int code)
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{
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switch (entry) {
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case T_TLB_MOD:
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case T_TLB_MOD+T_USER:
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case T_TLB_LD_MISS:
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case T_TLB_ST_MISS:
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case T_TLB_LD_MISS+T_USER:
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case T_TLB_ST_MISS+T_USER:
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case T_ADDR_ERR_LD: /* misaligned access */
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case T_ADDR_ERR_ST: /* misaligned access */
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case T_BUS_ERR_LD_ST: /* BERR asserted to CPU */
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case T_ADDR_ERR_LD+T_USER: /* misaligned or kseg access */
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case T_ADDR_ERR_ST+T_USER: /* misaligned or kseg access */
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case T_BUS_ERR_IFETCH+T_USER: /* BERR asserted to CPU */
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case T_BUS_ERR_LD_ST+T_USER: /* BERR asserted to CPU */
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return (SIGSEGV);
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case T_BREAK:
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case T_BREAK+T_USER:
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return (SIGTRAP);
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case T_RES_INST+T_USER:
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case T_COP_UNUSABLE+T_USER:
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return (SIGILL);
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case T_FPE+T_USER:
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case T_OVFLOW+T_USER:
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return (SIGFPE);
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default:
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return (SIGEMT);
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}
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}
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