/* * 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 <mesosphere.hpp> namespace ams::kern::svc { /* ============================= Common ============================= */ namespace { #if defined(MESOSPHERE_BUILD_FOR_DEBUGGING) void PrintBreak(ams::svc::BreakReason break_reason) { /* Print that break was called. */ 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()); /* Print the current thread's registers. */ KDebug::PrintRegister(); /* Print a backtrace. */ KDebug::PrintBacktrace(); } #endif void Break(ams::svc::BreakReason break_reason, uintptr_t address, size_t size) { /* Determine whether the break is only a notification. */ const bool is_notification = (break_reason & ams::svc::BreakReason_NotificationOnlyFlag) != 0; /* If the break isn't a notification, print it. */ if (!is_notification) { #if defined(MESOSPHERE_BUILD_FOR_DEBUGGING) PrintBreak(break_reason); #endif } /* If the current process is attached to debugger, try to notify it. */ if (GetCurrentProcess().IsAttachedToDebugger()) { if (R_SUCCEEDED(KDebug::BreakIfAttached(break_reason, address, size))) { /* If we attached, set the pc to the instruction before the current one and return. */ KDebug::SetPreviousProgramCounter(); return; } } /* If the break is only a notification, we're done. */ if (is_notification) { return; } /* Print that break was called. */ MESOSPHERE_EXCEPTION_LOG("Break() called. "); /* Try to enter JIT debug state. */ if (GetCurrentProcess().EnterJitDebug(ams::svc::DebugEvent_Exception, ams::svc::DebugException_UserBreak, KDebug::GetProgramCounter(GetCurrentThread()), break_reason, address, size)) { /* We entered JIT debug, so set the pc to the instruction before the current one and return. */ KDebug::SetPreviousProgramCounter(); return; } /* Exit the current process. */ GetCurrentProcess().Exit(); } } /* ============================= 64 ABI ============================= */ void Break64(ams::svc::BreakReason break_reason, ams::svc::Address arg, ams::svc::Size size) { return Break(break_reason, arg, size); } /* ============================= 64From32 ABI ============================= */ void Break64From32(ams::svc::BreakReason break_reason, ams::svc::Address arg, ams::svc::Size size) { return Break(break_reason, arg, size); } }