Atmosphere/libraries/libstratosphere/source/diag/impl/diag_get_all_backtrace.cpp

50 lines
1.5 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
namespace ams::diag::impl {
namespace {
constinit uintptr_t g_abort_impl_return_address = std::numeric_limits<uintptr_t>::max();
}
size_t GetAllBacktrace(uintptr_t *out, size_t out_size, ::ams::diag::Backtrace &bt) {
size_t count = 0;
do {
/* Check that we can write another return address. */
if (count >= out_size) {
break;
}
/* Get the current return address. */
const uintptr_t ret_addr = bt.GetReturnAddress();
/* If it's abort impl, reset the trace we're writing. */
if (ret_addr == g_abort_impl_return_address) {
count = 0;
}
/* Set the output pointer. */
out[count++] = ret_addr;
} while (bt.Step());
/* Return the number of addresses written. */
return count;
}
}