mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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90 lines
3.5 KiB
C++
90 lines
3.5 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern::svc {
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/* ============================= Common ============================= */
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namespace {
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#if defined(MESOSPHERE_BUILD_FOR_DEBUGGING)
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void PrintBreak(ams::svc::BreakReason break_reason) {
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/* Print that break was called. */
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MESOSPHERE_RELEASE_LOG("%s: svc::Break(%d) was called, pid=%ld, tid=%ld\n", GetCurrentProcess().GetName(), static_cast<s32>(break_reason), GetCurrentProcess().GetId(), GetCurrentThread().GetId());
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/* Print the current thread's registers. */
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KDebug::PrintRegister();
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/* Print a backtrace. */
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KDebug::PrintBacktrace();
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}
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#endif
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void Break(ams::svc::BreakReason break_reason, uintptr_t address, size_t size) {
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/* Determine whether the break is only a notification. */
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const bool is_notification = (break_reason & ams::svc::BreakReason_NotificationOnlyFlag) != 0;
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/* If the break isn't a notification, print it. */
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if (!is_notification) {
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#if defined(MESOSPHERE_BUILD_FOR_DEBUGGING)
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PrintBreak(break_reason);
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#endif
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}
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/* If the current process is attached to debugger, try to notify it. */
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if (GetCurrentProcess().IsAttachedToDebugger()) {
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if (R_SUCCEEDED(KDebug::BreakIfAttached(break_reason, address, size))) {
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/* If we attached, set the pc to the instruction before the current one and return. */
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KDebug::SetPreviousProgramCounter();
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return;
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}
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}
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/* If the break is only a notification, we're done. */
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if (is_notification) {
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return;
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}
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/* Print that break was called. */
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MESOSPHERE_EXCEPTION_LOG("Break() called. ");
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/* Try to enter JIT debug state. */
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if (GetCurrentProcess().EnterJitDebug(ams::svc::DebugEvent_Exception, ams::svc::DebugException_UserBreak, KDebug::GetProgramCounter(GetCurrentThread()), break_reason, address, size)) {
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/* We entered JIT debug, so set the pc to the instruction before the current one and return. */
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KDebug::SetPreviousProgramCounter();
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return;
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}
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/* Exit the current process. */
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GetCurrentProcess().Exit();
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}
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}
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/* ============================= 64 ABI ============================= */
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void Break64(ams::svc::BreakReason break_reason, ams::svc::Address arg, ams::svc::Size size) {
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return Break(break_reason, arg, size);
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}
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/* ============================= 64From32 ABI ============================= */
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void Break64From32(ams::svc::BreakReason break_reason, ams::svc::Address arg, ams::svc::Size size) {
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return Break(break_reason, arg, size);
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}
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}
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