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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/errl/backtrace.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file backtrace.C
*
* @brief Provide backtrace support to the errorlog classes.
*/
/*****************************************************************************/
// I n c l u d e s
/*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <trace/interface.H>
#include <errl/backtrace.H>
#include <vector>
#include <kernel/console.H>
namespace ERRORLOG
{
// ------------------------------------------------------------------
// collectBacktrace
// ------------------------------------------------------------------
void collectBacktrace ( std::vector<uint64_t> & o_addrVector )
{
o_addrVector.clear();
// TODO via RTC 124373
// During runtime, when OPAL application call us, we have a crash
// in this code. Reason is that OPAL apis are Little Endian where as
// HB apis are Big Endian. When we unwind stack and goes to OPAL API
// we crash. RTC 124373 will handle this.
#ifndef __HOSTBOOT_RUNTIME
uint64_t* frame = static_cast<uint64_t*>(framePointer());
bool first = true;
while (frame != NULL)
{
if ((0 != *frame) && (!first))
{
o_addrVector.push_back( frame[2] );
}
frame = reinterpret_cast<uint64_t*>(*frame);
first = false;
}
#endif //__HOSTBOOT_RUNTIME
} // End collectBacktrace
} // End ERRORLOG namespace
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