Atmosphere/stratosphere/fatal/source/fatal_task_error_report.cpp

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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
* 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 <cstdio>
#include <sys/stat.h>
#include <sys/types.h>
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#include <switch.h>
#include <atmosphere/version.h>
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#include "fatal_task_error_report.hpp"
#include "fatal_config.hpp"
void ErrorReportTask::EnsureReportDirectories() {
char path[FS_MAX_PATH];
strcpy(path, "sdmc:/atmosphere");
mkdir(path, S_IRWXU);
strcat(path, "/fatal_reports");
mkdir(path, S_IRWXU);
strcat(path, "/dumps");
mkdir(path, S_IRWXU);
}
bool ErrorReportTask::GetCurrentTime(u64 *out) {
*out = 0;
/* Verify that pcv isn't dead. */
{
bool has_time_service;
DoWithSmSession([&]() {
Handle dummy;
if (R_SUCCEEDED(smRegisterService(&dummy, "time:s", false, 0x20))) {
svcCloseHandle(dummy);
has_time_service = false;
} else {
has_time_service = true;
}
});
if (!has_time_service) {
return false;
}
}
/* Try to get the current time. */
bool success = true;
DoWithSmSession([&]() {
success &= R_SUCCEEDED(timeInitialize());
});
if (success) {
success &= R_SUCCEEDED(timeGetCurrentTime(TimeType_LocalSystemClock, out));
timeExit();
}
return success;
}
void ErrorReportTask::SaveReportToSdCard() {
char file_path[FS_MAX_PATH];
/* Ensure path exists. */
EnsureReportDirectories();
/* Get a timestamp. */
u64 timestamp;
if (!GetCurrentTime(&timestamp)) {
timestamp = svcGetSystemTick();
}
/* Open report file. */
snprintf(file_path, sizeof(file_path) - 1, "sdmc:/atmosphere/fatal_reports/%011lu_%016lx.log", timestamp, this->title_id);
FILE *f_report = fopen(file_path, "w");
if (f_report != NULL) {
ON_SCOPE_EXIT { fclose(f_report); };
fprintf(f_report, "Atmosphère Fatal Report (v1.0):\n");
fprintf(f_report, "Result: 0x%X (2%03d-%04d)\n\n", this->ctx->error_code, R_MODULE(this->ctx->error_code), R_DESCRIPTION(this->ctx->error_code));
fprintf(f_report, "Title ID: %016lx\n", this->title_id);
if (strlen(this->ctx->proc_name)) {
fprintf(f_report, "Process Name: %s\n", this->ctx->proc_name);
}
fprintf(f_report, u8"Firmware: %s (Atmosphère %u.%u.%u-%s)\n", GetFatalConfig()->firmware_version.display_version, CURRENT_ATMOSPHERE_VERSION, GetAtmosphereGitRevision());
if (this->ctx->cpu_ctx.is_aarch32) {
fprintf(f_report, "General Purpose Registers:\n");
for (size_t i = 0; i < NumAarch32Gprs; i++) {
if (this->ctx->has_gprs[i]) {
fprintf(f_report, " %3s: %08x\n", Aarch32GprNames[i], this->ctx->cpu_ctx.aarch32_ctx.r[i]);
}
}
fprintf(f_report, " PC: %08x\n", this->ctx->cpu_ctx.aarch32_ctx.pc);
fprintf(f_report, "Start Address: %08x\n", this->ctx->cpu_ctx.aarch32_ctx.start_address);
fprintf(f_report, "Stack Trace:\n");
for (unsigned int i = 0; i < this->ctx->cpu_ctx.aarch32_ctx.stack_trace_size; i++) {
fprintf(f_report, " ReturnAddress[%02u]: %08x\n", i, this->ctx->cpu_ctx.aarch32_ctx.stack_trace[i]);
}
} else {
fprintf(f_report, "General Purpose Registers:\n");
for (size_t i = 0; i < NumAarch64Gprs; i++) {
if (this->ctx->has_gprs[i]) {
fprintf(f_report, " %3s: %016lx\n", Aarch64GprNames[i], this->ctx->cpu_ctx.aarch64_ctx.x[i]);
}
}
fprintf(f_report, " PC: %016lx\n", this->ctx->cpu_ctx.aarch64_ctx.pc);
fprintf(f_report, "Start Address: %016lx\n", this->ctx->cpu_ctx.aarch64_ctx.start_address);
fprintf(f_report, "Stack Trace:\n");
for (unsigned int i = 0; i < this->ctx->cpu_ctx.aarch64_ctx.stack_trace_size; i++) {
fprintf(f_report, " ReturnAddress[%02u]: %016lx\n", i, this->ctx->cpu_ctx.aarch64_ctx.stack_trace[i]);
}
}
}
if (this->ctx->stack_dump_size) {
snprintf(file_path, sizeof(file_path) - 1, "sdmc:/atmosphere/fatal_reports/dumps/%011lu_%016lx.bin", timestamp, this->title_id);
FILE *f_stackdump = fopen(file_path, "wb");
if (f_stackdump == NULL) { return; }
ON_SCOPE_EXIT { fclose(f_stackdump); };
fwrite(this->ctx->stack_dump, this->ctx->stack_dump_size, 1, f_stackdump);
}
}
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Result ErrorReportTask::Run() {
if (this->create_report) {
/* Here, Nintendo creates an error report with erpt. AMS will not do that. */
}
/* Save report to SD card. */
if (!this->ctx->is_creport) {
SaveReportToSdCard();
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}
/* Signal we're done with our job. */
eventFire(this->erpt_event);
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return ResultSuccess;
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}