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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/filemon/@/arm/arm/stack_machdep.c |
/*-
* Copyright (c) 2005 Antoine Brodin
* 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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/arm/arm/stack_machdep.c 174195 2007-12-02 20:40:35Z rwatson $");
#include <sys/systm.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/stack.h>
#include <machine/vmparam.h>
#include <machine/pcb.h>
#include <machine/stack.h>
static void
stack_capture(struct stack *st, u_int32_t *frame)
{
vm_offset_t callpc;
stack_zero(st);
while (1) {
if (!INKERNEL(frame))
break;
callpc = frame[FR_SCP];
if (stack_put(st, callpc) == -1)
break;
frame = (u_int32_t *)(frame[FR_RFP]);
}
}
void
stack_save_td(struct stack *st, struct thread *td)
{
u_int32_t *frame;
if (TD_IS_SWAPPED(td))
panic("stack_save_td: swapped");
if (TD_IS_RUNNING(td))
panic("stack_save_td: running");
frame = (u_int32_t *)td->td_pcb->un_32.pcb32_r11;
stack_capture(st, frame);
}
void
stack_save(struct stack *st)
{
u_int32_t *frame;
frame = (u_int32_t *)__builtin_frame_address(0);
stack_capture(st, frame);
}