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/*-
* Copyright (c) 2006 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/powerpc/powerpc/gdb_machdep.c 177288 2008-03-17 00:46:52Z marcel $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kdb.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/signal.h>
#include <machine/gdb_machdep.h>
#include <machine/pcb.h>
#include <machine/reg.h>
#include <machine/hid.h>
#include <machine/spr.h>
#include <machine/trap.h>
#include <gdb/gdb.h>
#include <gdb/gdb_int.h>
void *
gdb_cpu_getreg(int regnum, size_t *regsz)
{
*regsz = gdb_cpu_regsz(regnum);
if (kdb_thread == curthread) {
if (regnum == 0 || (regnum >= 2 && regnum <= 31))
return (kdb_frame->fixreg + regnum);
if (regnum == 64)
return (&kdb_frame->srr0);
if (regnum == 67)
return (&kdb_frame->lr);
}
if (regnum == 1)
return (&kdb_thrctx->pcb_sp);
if (regnum >= 14 && regnum <= 31)
return (kdb_thrctx->pcb_context + (regnum - 14));
if (regnum == 64)
return (&kdb_thrctx->pcb_lr);
return (NULL);
}
void
gdb_cpu_setreg(int regnum, void *val)
{
switch (regnum) {
case GDB_REG_PC:
break;
}
}
int
gdb_cpu_signal(int vector, int dummy __unused)
{
#ifdef E500
if (vector == EXC_DEBUG || vector == EXC_PGM)
return (SIGTRAP);
#else
if (vector == EXC_TRC || vector == EXC_RUNMODETRC)
return (SIGTRAP);
#endif
if (vector <= 255)
return (vector);
else
return (SIGEMT);
}