111235Sandreas.sandberg@arm.com/* 211235Sandreas.sandberg@arm.com * Copyright (c) 2015 ARM Limited 311235Sandreas.sandberg@arm.com * All rights reserved 411235Sandreas.sandberg@arm.com * 511235Sandreas.sandberg@arm.com * The license below extends only to copyright in the software and shall 611235Sandreas.sandberg@arm.com * not be construed as granting a license to any other intellectual 711235Sandreas.sandberg@arm.com * property including but not limited to intellectual property relating 811235Sandreas.sandberg@arm.com * to a hardware implementation of the functionality of the software 911235Sandreas.sandberg@arm.com * licensed hereunder. You may use the software subject to the license 1011235Sandreas.sandberg@arm.com * terms below provided that you ensure that this notice is replicated 1111235Sandreas.sandberg@arm.com * unmodified and in its entirety in all distributions of the software, 1211235Sandreas.sandberg@arm.com * modified or unmodified, in source code or in binary form. 1311235Sandreas.sandberg@arm.com * 1411235Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 1511235Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 1611235Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 1711235Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 1811235Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 1911235Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 2011235Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 2111235Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 2211235Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 2311235Sandreas.sandberg@arm.com * this software without specific prior written permission. 2411235Sandreas.sandberg@arm.com * 2511235Sandreas.sandberg@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2611235Sandreas.sandberg@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2711235Sandreas.sandberg@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2811235Sandreas.sandberg@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2911235Sandreas.sandberg@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3011235Sandreas.sandberg@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3111235Sandreas.sandberg@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3211235Sandreas.sandberg@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3311235Sandreas.sandberg@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3411235Sandreas.sandberg@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3511235Sandreas.sandberg@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3611235Sandreas.sandberg@arm.com * 3711235Sandreas.sandberg@arm.com * Authors: Andreas Sandberg 3811235Sandreas.sandberg@arm.com */ 3911235Sandreas.sandberg@arm.com 4011235Sandreas.sandberg@arm.com#include <execinfo.h> 4111235Sandreas.sandberg@arm.com#include <unistd.h> 4211235Sandreas.sandberg@arm.com 4311235Sandreas.sandberg@arm.com#include "base/atomicio.hh" 4411793Sbrandon.potter@amd.com#include "sim/backtrace.hh" 4511235Sandreas.sandberg@arm.com 4611235Sandreas.sandberg@arm.com#define SAFE_MSG(m) \ 4711235Sandreas.sandberg@arm.com do { \ 4811235Sandreas.sandberg@arm.com static const char msg[] = m; \ 4911235Sandreas.sandberg@arm.com atomic_write(STDERR_FILENO, msg, sizeof(msg) - 1); \ 5011321Ssteve.reinhardt@amd.com } while (0) 5111235Sandreas.sandberg@arm.com 5211235Sandreas.sandberg@arm.comvoid 5311235Sandreas.sandberg@arm.comprint_backtrace() 5411235Sandreas.sandberg@arm.com{ 5511235Sandreas.sandberg@arm.com void *buffer[32]; 5611235Sandreas.sandberg@arm.com int size; 5711235Sandreas.sandberg@arm.com 5811235Sandreas.sandberg@arm.com size = backtrace(buffer, sizeof(buffer) / sizeof(*buffer)); 5911235Sandreas.sandberg@arm.com 6011235Sandreas.sandberg@arm.com STATIC_ERR("--- BEGIN LIBC BACKTRACE ---\n"); 6111235Sandreas.sandberg@arm.com backtrace_symbols_fd(buffer, size, STDERR_FILENO); 6211235Sandreas.sandberg@arm.com if (size == sizeof(buffer)) 6311235Sandreas.sandberg@arm.com STATIC_ERR("Warning: Backtrace may have been truncated.\n"); 6411235Sandreas.sandberg@arm.com STATIC_ERR("--- END LIBC BACKTRACE ---\n"); 6511235Sandreas.sandberg@arm.com} 66