mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
/*
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* Copyright (c) 2018-2019 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 <switch.h>
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#include "fatal_throw.hpp"
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#include "fatal_event_manager.hpp"
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#include "fatal_task.hpp"
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#include "fatal_config.hpp"
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#include "fatal_debug.hpp"
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static bool g_thrown = false;
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static Result SetThrown() {
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/* This should be fine, since fatal only has a single IPC thread. */
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if (g_thrown) {
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return ResultFatalAlreadyThrown;
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}
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g_thrown = true;
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return ResultSuccess;
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}
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Result ThrowFatalForSelf(u32 error) {
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u64 pid = 0;
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svcGetProcessId(&pid, CUR_PROCESS_HANDLE);
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return ThrowFatalImpl(error, pid, FatalType_ErrorScreen, nullptr);
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}
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Result ThrowFatalImpl(u32 error, u64 pid, FatalType policy, FatalCpuContext *cpu_ctx) {
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FatalThrowContext ctx = {0};
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ctx.error_code = error;
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if (cpu_ctx != nullptr) {
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ctx.cpu_ctx = *cpu_ctx;
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/* Assume if we're provided a context that it's complete. */
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for (u32 i = 0; i < NumAarch64Gprs; i++) {
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ctx.has_gprs[i] = true;
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}
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/* Cap the stack trace size at a sane limit. */
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/* TODO: Better to set to zero, in order to manually collect debug info ourselves instead? */
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if (cpu_ctx->is_aarch32) {
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ctx.cpu_ctx.aarch32_ctx.stack_trace_size = std::max(ctx.cpu_ctx.aarch32_ctx.stack_trace_size, static_cast<u32>(Aarch32CpuContext::MaxStackTraceDepth));
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} else {
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ctx.cpu_ctx.aarch64_ctx.stack_trace_size = std::max(ctx.cpu_ctx.aarch64_ctx.stack_trace_size, static_cast<u32>(Aarch64CpuContext::MaxStackTraceDepth));
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}
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} else {
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std::memset(&ctx.cpu_ctx, 0, sizeof(ctx.cpu_ctx));
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}
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/* Reassign this unconditionally, for convenience. */
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cpu_ctx = &ctx.cpu_ctx;
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/* Get config. */
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const FatalConfig *config = GetFatalConfig();
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/* Get title id. On failure, it'll be zero. */
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u64 title_id = 0;
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pminfoGetTitleId(&title_id, pid);
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ctx.is_creport = title_id == TitleId_Creport;
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/* Support for ams creport. TODO: Make this its own command? */
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if (ctx.is_creport && !cpu_ctx->is_aarch32 && cpu_ctx->aarch64_ctx.afsr0 != 0) {
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title_id = cpu_ctx->aarch64_ctx.afsr0;
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}
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/* Atmosphere extension: automatic debug info collection. */
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if (GetRuntimeFirmwareVersion() >= FirmwareVersion_200 && !ctx.is_creport) {
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if ((cpu_ctx->is_aarch32 && cpu_ctx->aarch32_ctx.stack_trace_size == 0) || (!cpu_ctx->is_aarch32 && cpu_ctx->aarch64_ctx.stack_trace_size == 0)) {
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TryCollectDebugInformation(&ctx, pid);
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}
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}
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switch (policy) {
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case FatalType_ErrorReport:
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/* TODO: Don't write an error report. */
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break;
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case FatalType_ErrorReportAndErrorScreen:
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case FatalType_ErrorScreen:
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{
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/* Ensure we only throw once. */
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R_TRY(SetThrown());
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/* Signal that fatal is about to happen. */
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GetEventManager()->SignalEvents();
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/* Create events. */
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Event erpt_event;
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Event battery_event;
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if (R_FAILED(eventCreate(&erpt_event, false)) || R_FAILED(eventCreate(&battery_event, false))) {
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std::abort();
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}
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/* Run tasks. */
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if (config->transition_to_fatal) {
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RunFatalTasks(&ctx, title_id, policy == FatalType_ErrorReportAndErrorScreen, &erpt_event, &battery_event);
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} else {
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/* If flag is not set, don't show the fatal screen. */
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return ResultSuccess;
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}
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}
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break;
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default:
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/* N aborts here. Should we just return an error code? */
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std::abort();
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}
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return ResultSuccess;
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}
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