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os: add stack based backtrace support

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Fixes odyssey #2001
This commit is contained in:
Sebastian Sumpf 2016-06-06 17:18:07 +02:00 committed by Christian Helmuth
parent 49f7d02f80
commit 1cfa14b2f2
3 changed files with 122 additions and 0 deletions
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40
repos/os/include/spec/arm/os/backtrace.h Normal file
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/*
* \brief Backtrace helper utility
* \date 2015-09-18
* \author Christian Prochaska
* \author Stefan Kalkowski
*/
/*
* Copyright (C) 2015-2016 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__SPEC__ARM__OS__BACKTRACE_H_
#define _INCLUDE__SPEC__ARM__OS__BACKTRACE_H_
#include <base/log.h>
namespace Genode { void inline backtrace() __attribute__((always_inline)); }
/**
* Print frame pointer based backtrace
*
* To use this function compile your code with the -fno-omit-frame-pointer GCC
* option.
*/
void inline Genode::backtrace()
{
addr_t * fp;
asm volatile ("mov %0, %%fp" : "=r"(fp) : :);
while (fp && *fp) {
Genode::log(Hex(*fp));
fp = (addr_t*)*(fp - 1);
}
}
#endif /* _INCLUDE__SPEC__ARM__OS__BACKTRACE_H_ */

41
repos/os/include/spec/x86_32/os/backtrace.h Normal file
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/*
* \brief Backtrace helper utility
* \date 2015-09-18
* \author Christian Prochaska
* \author Stefan Kalkowski
*/
/*
* Copyright (C) 2015-2016 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__SPEC__X86_32__OS__BACKTRACE_H_
#define _INCLUDE__SPEC__X86_32__OS__BACKTRACE_H_
#include <base/stdint.h>
#include <base/log.h>
namespace Genode { void inline backtrace() __attribute__((always_inline)); }
/**
* Print frame pointer based backtrace
*
* To use this function compile your code with the -fno-omit-frame-pointer GCC
* option.
*/
void inline Genode::backtrace()
{
Genode::addr_t * fp;
asm volatile ("movl %%ebp, %0" : "=r"(fp) : :);
while (fp && *(fp + 1)) {
Genode::log(Hex(*(fp + 1)));
fp = (Genode::addr_t*)*fp;
}
}
#endif /* _INCLUDE__SPEC__X86_32__OS__BACKTRACE_H_ */

41
repos/os/include/spec/x86_64/os/backtrace.h Normal file
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/*
* \brief Backtrace helper utility
* \date 2015-09-18
* \author Christian Prochaska
* \author Stefan Kalkowski
*/
/*
* Copyright (C) 2015-2016 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__SPEC__X86_64__OS__BACKTRACE_H_
#define _INCLUDE__SPEC__X86_64__OS__BACKTRACE_H_
#include <base/stdint.h>
#include <base/log.h>
namespace Genode { void inline backtrace() __attribute__((always_inline)); }
/**
* Print frame pointer based backtrace
*
* To use this function compile your code with the -fno-omit-frame-pointer GCC
* option.
*/
void inline Genode::backtrace()
{
Genode::addr_t * fp;
asm volatile ("movq %%rbp, %0" : "=r"(fp) : :);
while (fp && *(fp + 1)) {
Genode::log(Hex(*(fp + 1)));
fp = (Genode::addr_t*)*fp;
}
}
#endif /* _INCLUDE__SPEC__X86_64__OS__BACKTRACE_H_ */