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creport: refactor to use sts:: namespace.

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Michael Scire 2019-07-12 05:31:00 -07:00 committed by SciresM
parent fc7f06dc78
commit 227a1d938d
17 changed files with 1239 additions and 1208 deletions
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229
stratosphere/creport/source/creport_code_info.cpp
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@ -1,229 +0,0 @@
/*
* Copyright (c) 2018-2019 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 <switch.h>
#include <cstring>
#include "creport_code_info.hpp"
#include "creport_crash_report.hpp"
void CodeList::SaveToFile(FILE *f_report) {
fprintf(f_report, " Number of Code Regions: %u\n", this->code_count);
for (unsigned int i = 0; i < this->code_count; i++) {
fprintf(f_report, " Code Region %02u:\n", i);
fprintf(f_report, " Address: %016lx-%016lx\n", this->code_infos[i].start_address, this->code_infos[i].end_address);
if (this->code_infos[i].name[0]) {
fprintf(f_report, " Name: %s\n", this->code_infos[i].name);
}
CrashReport::Memdump(f_report, " Build Id: ", this->code_infos[i].build_id, sizeof(this->code_infos[i].build_id));
}
}
void CodeList::ReadCodeRegionsFromThreadInfo(Handle debug_handle, const ThreadInfo *thread) {
u64 code_base;
/* Try to add the thread's PC. */
if (TryFindCodeRegion(debug_handle, thread->GetPC(), &code_base)) {
AddCodeRegion(debug_handle, code_base);
}
/* Try to add the thread's LR. */
if (TryFindCodeRegion(debug_handle, thread->GetLR(), &code_base)) {
AddCodeRegion(debug_handle, code_base);
}
/* Try to add all the addresses in the thread's stacktrace. */
for (u32 i = 0; i < thread->GetStackTraceSize(); i++) {
if (TryFindCodeRegion(debug_handle, thread->GetStackTrace(i), &code_base)) {
AddCodeRegion(debug_handle, code_base);
}
}
}
void CodeList::AddCodeRegion(u64 debug_handle, u64 code_address) {
/* Check whether we already have this code region. */
for (size_t i = 0; i < this->code_count; i++) {
if (this->code_infos[i].start_address <= code_address && code_address < this->code_infos[i].end_address) {
return;
}
}
/* Add all contiguous code regions. */
u64 cur_ptr = code_address;
while (this->code_count < max_code_count) {
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, cur_ptr))) {
break;
}
if (mi.perm == Perm_Rx) {
/* Parse CodeInfo. */
this->code_infos[this->code_count].start_address = mi.addr;
this->code_infos[this->code_count].end_address = mi.addr + mi.size;
GetCodeInfoName(debug_handle, mi.addr, mi.addr + mi.size, this->code_infos[this->code_count].name);
GetCodeInfoBuildId(debug_handle, mi.addr + mi.size, this->code_infos[this->code_count].build_id);
if (this->code_infos[this->code_count].name[0] == '\x00') {
snprintf(this->code_infos[this->code_count].name, 0x1F, "[%02x%02x%02x%02x]", this->code_infos[this->code_count].build_id[0],
this->code_infos[this->code_count].build_id[1],
this->code_infos[this->code_count].build_id[2],
this->code_infos[this->code_count].build_id[3]);
}
this->code_count++;
}
/* If we're out of readable memory, we're done reading code. */
if (mi.type == MemType_Unmapped || mi.type == MemType_Reserved) {
break;
}
/* Verify we're not getting stuck in an infinite loop. */
if (mi.size == 0 || U64_MAX - mi.size <= cur_ptr) {
break;
}
cur_ptr += mi.size;
}
}
bool CodeList::TryFindCodeRegion(Handle debug_handle, u64 guess, u64 *address) {
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, guess))) {
return false;
}
if (mi.perm == Perm_Rw) {
guess = mi.addr - 4;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, guess))) {
return false;
}
}
if (mi.perm == Perm_R) {
guess = mi.addr - 4;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, guess))) {
return false;
}
}
if (mi.perm != Perm_Rx) {
return false;
}
/* Iterate backwards until we find the memory before the code region. */
while (mi.addr > 0) {
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, guess))) {
return false;
}
if (mi.type == MemType_Unmapped) {
/* Code region will be at the end of the unmapped region preceding it. */
*address = mi.addr + mi.size;
return true;
}
guess = mi.addr - 4;
}
return false;
}
void CodeList::GetCodeInfoName(u64 debug_handle, u64 rx_address, u64 rodata_addr, char *name) {
char name_in_proc[0x200];
/* Clear name. */
memset(name, 0, 0x20);
/* Check whether this NSO *has* a name... */
{
u64 rodata_start[0x20/sizeof(u64)];
MemoryInfo mi;
u32 pi;
u64 rw_address;
/* Verify .rodata is read-only. */
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, rodata_addr)) || mi.perm != Perm_R) {
return;
}
/* rwdata is after rodata. */
rw_address = mi.addr + mi.size;
/* Read start of .rodata. */
if (R_FAILED(svcReadDebugProcessMemory(rodata_start, debug_handle, rodata_addr, sizeof(rodata_start)))) {
return;
}
/* Check if name section is present. */
if (rodata_start[0] == (rw_address - rx_address)) {
return;
}
}
/* Read name out of .rodata. */
if (R_FAILED(svcReadDebugProcessMemory(name_in_proc, debug_handle, rodata_addr + 8, sizeof(name_in_proc)))) {
return;
}
/* Start after last slash in path. */
int ofs = strnlen(name_in_proc, sizeof(name_in_proc));
while (ofs >= 0 && name_in_proc[ofs] != '/' && name_in_proc[ofs] != '\\') {
ofs--;
}
strncpy(name, name_in_proc + ofs + 1, 0x20);
name[0x1F] = '\x00';
}
void CodeList::GetCodeInfoBuildId(u64 debug_handle, u64 rodata_addr, u8 *build_id) {
MemoryInfo mi;
u32 pi;
/* Clear build id. */
memset(build_id, 0, 0x20);
/* Verify .rodata is read-only. */
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, rodata_addr)) || mi.perm != Perm_R) {
return;
}
/* We want to read the last two pages of .rodata. */
u8 last_pages[0x2000];
size_t last_pages_size = mi.size >= 0x2000 ? 0x2000 : 0x1000;
if (R_FAILED(svcReadDebugProcessMemory(last_pages, debug_handle, mi.addr + mi.size - last_pages_size, last_pages_size))) {
return;
}
/* Find GNU\x00 to locate start of Build ID. */
for (int ofs = last_pages_size - 0x24; ofs >= 0; ofs--) {
if (memcmp(last_pages + ofs, "GNU\x00", 4) == 0) {
memcpy(build_id, last_pages + ofs + 4, 0x20);
}
}
}
const char *CodeList::GetFormattedAddressString(u64 address) {
memset(this->address_str_buf, 0, sizeof(this->address_str_buf));
for (unsigned int i = 0; i < this->code_count; i++) {
if (this->code_infos[i].start_address <= address && address < this->code_infos[i].end_address) {
snprintf(this->address_str_buf, sizeof(this->address_str_buf) - 1, "%016lx (%s + 0x%lx)", address, this->code_infos[i].name, address - this->code_infos[i].start_address);
return this->address_str_buf;
}
}
snprintf(this->address_str_buf, sizeof(this->address_str_buf) - 1, "%016lx", address);
return this->address_str_buf;
}

48
stratosphere/creport/source/creport_code_info.hpp
View file

@ -1,48 +0,0 @@
/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
#include <cstdio>
#include "creport_debug_types.hpp"
#include "creport_thread_info.hpp"
struct CodeInfo {
char name[0x20];
u8 build_id[0x20];
u64 start_address;
u64 end_address;
};
class CodeList {
public:
static const size_t max_code_count = 0x60;
u32 code_count = 0;
CodeInfo code_infos[max_code_count];
/* For pretty-printing. */
char address_str_buf[0x280];
public:
void ReadCodeRegionsFromThreadInfo(Handle debug_handle, const ThreadInfo *thread);
const char *GetFormattedAddressString(u64 address);
void SaveToFile(FILE *f_report);
private:
bool TryFindCodeRegion(Handle debug_handle, u64 guess, u64 *address);
void AddCodeRegion(u64 debug_handle, u64 code_address);
void GetCodeInfoName(u64 debug_handle, u64 rx_address, u64 ro_address, char *name);
void GetCodeInfoBuildId(u64 debug_handle, u64 ro_address, u8 *build_id);
};

635
stratosphere/creport/source/creport_crash_report.cpp
View file

@ -14,104 +14,195 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstdio>
#include <cstring>
#include <sys/stat.h>
#include <sys/types.h>
#include <switch.h>
#include "creport_crash_report.hpp"
#include "creport_debug_types.hpp"
#include "creport_utils.hpp"
void CrashReport::BuildReport(u64 pid, bool has_extra_info) {
this->has_extra_info = has_extra_info;
if (OpenProcess(pid)) {
ProcessExceptions();
this->code_list.ReadCodeRegionsFromThreadInfo(this->debug_handle, &this->crashed_thread_info);
this->thread_list.ReadThreadsFromProcess(this->thread_tls_map, this->debug_handle, Is64Bit());
this->crashed_thread_info.SetCodeList(&this->code_list);
this->thread_list.SetCodeList(&this->code_list);
namespace sts::creport {
if (IsApplication()) {
ProcessDyingMessage();
namespace {
/* Convenience definitions. */
constexpr size_t DyingMessageAddressOffset = 0x1C0;
/* Helper functions. */
bool IsAddressReadable(Handle debug_handle, u64 address, size_t size) {
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, address))) {
return false;
}
/* Must be read or read-write */
if ((mi.perm | Perm_W) != Perm_Rw) {
return false;
}
/* Must have space for both userdata address and userdata size. */
if (address < mi.addr || mi.addr + mi.size < address + size) {
return false;
}
return true;
}
/* Real creport only does this if application, but there's no reason not to do it all the time. */
for (u32 i = 0; i < this->thread_list.GetThreadCount(); i++) {
this->code_list.ReadCodeRegionsFromThreadInfo(this->debug_handle, this->thread_list.GetThreadInfo(i));
bool TryGetCurrentTimestamp(u64 *out) {
/* Clear output. */
*out = 0;
/* Check if we have time service. */
{
bool has_time_service = false;
if (R_FAILED(sm::HasService(&has_time_service, sm::ServiceName::Encode("time:s"))) || !has_time_service) {
return false;
}
}
/* Try to get the current time. */
{
auto time_holder = sm::ScopedServiceHolder<timeInitialize, timeExit>();
return R_SUCCEEDED(time_holder.GetResult()) && R_SUCCEEDED(timeGetCurrentTime(TimeType_LocalSystemClock, out));
}
}
/* Real creport builds the report here. We do it later. */
void EnsureReportDirectories() {
mkdir("sdmc:/atmosphere", S_IRWXU);
mkdir("sdmc:/atmosphere/crash_reports", S_IRWXU);
mkdir("sdmc:/atmosphere/crash_reports/dumps", S_IRWXU);
mkdir("sdmc:/atmosphere/fatal_reports", S_IRWXU);
mkdir("sdmc:/atmosphere/fatal_reports/dumps", S_IRWXU);
}
Close();
}
}
constexpr const char *GetDebugExceptionTypeString(const svc::DebugExceptionType type) {
switch (type) {
case svc::DebugExceptionType::UndefinedInstruction:
return "Undefined Instruction";
case svc::DebugExceptionType::InstructionAbort:
return "Instruction Abort";
case svc::DebugExceptionType::DataAbort:
return "Data Abort";
case svc::DebugExceptionType::AlignmentFault:
return "Alignment Fault";
case svc::DebugExceptionType::DebuggerAttached:
return "Debugger Attached";
case svc::DebugExceptionType::BreakPoint:
return "Break Point";
case svc::DebugExceptionType::UserBreak:
return "User Break";
case svc::DebugExceptionType::DebuggerBreak:
return "Debugger Break";
case svc::DebugExceptionType::UndefinedSystemCall:
return "Undefined System Call";
case svc::DebugExceptionType::SystemMemoryError:
return "System Memory Error";
default:
return "Unknown";
}
}
FatalContext *CrashReport::GetFatalContext() {
FatalContext *ctx = new FatalContext;
*ctx = (FatalContext){0};
ctx->is_aarch32 = false;
ctx->type = static_cast<u32>(this->exception_info.type);
for (size_t i = 0; i < 29; i++) {
ctx->aarch64_ctx.x[i] = this->crashed_thread_info.context.cpu_gprs[i].x;
}
ctx->aarch64_ctx.fp = this->crashed_thread_info.context.fp;
ctx->aarch64_ctx.lr = this->crashed_thread_info.context.lr;
ctx->aarch64_ctx.pc = this->crashed_thread_info.context.pc.x;
ctx->aarch64_ctx.stack_trace_size = this->crashed_thread_info.stack_trace_size;
for (size_t i = 0; i < ctx->aarch64_ctx.stack_trace_size; i++) {
ctx->aarch64_ctx.stack_trace[i] = this->crashed_thread_info.stack_trace[i];
}
if (this->code_list.code_count) {
ctx->aarch64_ctx.start_address = this->code_list.code_infos[0].start_address;
}
void CrashReport::BuildReport(u64 process_id, bool has_extra_info) {
this->has_extra_info = has_extra_info;
/* For ams fatal... */
ctx->aarch64_ctx.afsr0 = this->process_info.title_id;
if (this->OpenProcess(process_id)) {
ON_SCOPE_EXIT { this->Close(); };
return ctx;
}
/* Parse info from the crashed process. */
this->ProcessExceptions();
this->module_list.FindModulesFromThreadInfo(this->debug_handle, this->crashed_thread);
this->thread_list.ReadFromProcess(this->debug_handle, this->thread_tls_map, this->Is64Bit());
void CrashReport::ProcessExceptions() {
if (!IsOpen()) {
return;
}
/* Associate module list to threads. */
this->crashed_thread.SetModuleList(&this->module_list);
this->thread_list.SetModuleList(&this->module_list);
DebugEventInfo d;
while (R_SUCCEEDED(svcGetDebugEvent((u8 *)&d, this->debug_handle))) {
switch (d.type) {
case DebugEventType::AttachProcess:
HandleAttachProcess(d);
break;
case DebugEventType::Exception:
HandleException(d);
break;
case DebugEventType::AttachThread:
HandleAttachThread(d);
case DebugEventType::ExitProcess:
case DebugEventType::ExitThread:
default:
break;
/* Process dying message for applications. */
if (this->IsApplication()) {
this->ProcessDyingMessage();
}
/* Nintendo's creport finds extra modules by looking at all threads if application, */
/* but there's no reason for us not to always go looking. */
for (size_t i = 0; i < this->thread_list.GetThreadCount(); i++) {
this->module_list.FindModulesFromThreadInfo(this->debug_handle, this->thread_list.GetThreadInfo(i));
}
/* Nintendo's creport builds the report here, but we'll do it later. */
}
}
/* Parse crashing thread info. */
this->crashed_thread_info.ReadFromProcess(this->thread_tls_map, this->debug_handle, this->crashed_thread_id, Is64Bit());
}
void CrashReport::GetFatalContext(FatalContext *out) const {
std::memset(out, 0, sizeof(*out));
out->is_aarch32 = false;
out->type = static_cast<u32>(this->exception_info.type);
for (size_t i = 0; i < 29; i++) {
out->aarch64_ctx.x[i] = this->crashed_thread.GetGeneralPurposeRegister(i);
}
out->aarch64_ctx.fp = this->crashed_thread.GetFP();
out->aarch64_ctx.lr = this->crashed_thread.GetLR();
out->aarch64_ctx.pc = this->crashed_thread.GetPC();
out->aarch64_ctx.stack_trace_size = this->crashed_thread.GetStackTraceSize();
for (size_t i = 0; i < out->aarch64_ctx.stack_trace_size; i++) {
out->aarch64_ctx.stack_trace[i] = this->crashed_thread.GetStackTrace(i);
}
if (this->module_list.GetModuleCount()) {
out->aarch64_ctx.start_address = this->module_list.GetModuleStartAddress(0);
}
/* For ams fatal, which doesn't use afsr0, pass title_id instead. */
out->aarch64_ctx.afsr0 = this->process_info.title_id;
}
void CrashReport::ProcessExceptions() {
if (!this->IsOpen()) {
return;
}
/* Loop all debug events. */
svc::DebugEventInfo d;
while (R_SUCCEEDED(svcGetDebugEvent(reinterpret_cast<u8 *>(&d), this->debug_handle))) {
switch (d.type) {
case svc::DebugEventType::AttachProcess:
this->HandleDebugEventInfoAttachProcess(d);
break;
case svc::DebugEventType::AttachThread:
this->HandleDebugEventInfoAttachThread(d);
break;
case svc::DebugEventType::Exception:
this->HandleDebugEventInfoException(d);
break;
case svc::DebugEventType::ExitProcess:
case svc::DebugEventType::ExitThread:
break;
}
}
/* Parse crashed thread info. */
this->crashed_thread.ReadFromProcess(this->debug_handle, this->thread_tls_map, this->crashed_thread_id, this->Is64Bit());
}
void CrashReport::HandleDebugEventInfoAttachProcess(const svc::DebugEventInfo &d) {
this->process_info = d.info.attach_process;
/* On 5.0.0+, we want to parse out a dying message from application crashes. */
if (GetRuntimeFirmwareVersion() < FirmwareVersion_500 || !IsApplication()) {
return;
}
void CrashReport::HandleAttachProcess(DebugEventInfo &d) {
this->process_info = d.info.attach_process;
if ((GetRuntimeFirmwareVersion() >= FirmwareVersion_500) && IsApplication()) {
/* Parse out user data. */
u64 address = this->process_info.user_exception_context_address;
const u64 address = this->process_info.user_exception_context_address + DyingMessageAddressOffset;
u64 userdata_address = 0;
u64 userdata_size = 0;
if (!IsAddressReadable(address, sizeof(userdata_address) + sizeof(userdata_size))) {
if (!IsAddressReadable(this->debug_handle, address, sizeof(userdata_address) + sizeof(userdata_size))) {
return;
}
@ -131,274 +222,186 @@ void CrashReport::HandleAttachProcess(DebugEventInfo &d) {
}
/* Cap userdata size. */
if (userdata_size > sizeof(this->dying_message)) {
userdata_size = sizeof(this->dying_message);
}
userdata_size = std::min(size_t(userdata_size), sizeof(this->dying_message));
/* Assign. */
this->dying_message_address = userdata_address;
this->dying_message_size = userdata_size;
}
}
void CrashReport::HandleException(DebugEventInfo &d) {
switch (d.info.exception.type) {
case DebugExceptionType::UndefinedInstruction:
this->result = ResultCreportUndefinedInstruction;
break;
case DebugExceptionType::InstructionAbort:
this->result = ResultCreportInstructionAbort;
d.info.exception.specific.raw = 0;
break;
case DebugExceptionType::DataAbort:
this->result = ResultCreportDataAbort;
break;
case DebugExceptionType::AlignmentFault:
this->result = ResultCreportAlignmentFault;
break;
case DebugExceptionType::UserBreak:
this->result = ResultCreportUserBreak;
/* Try to parse out the user break result. */
if ((GetRuntimeFirmwareVersion() >= FirmwareVersion_500)) {
Result user_result = 0;
if (IsAddressReadable(d.info.exception.specific.user_break.address, sizeof(user_result))) {
svcReadDebugProcessMemory(&user_result, this->debug_handle, d.info.exception.specific.user_break.address, sizeof(user_result));
void CrashReport::HandleDebugEventInfoAttachThread(const svc::DebugEventInfo &d) {
/* Save info on the thread's TLS address for later. */
this->thread_tls_map[d.info.attach_thread.thread_id] = d.info.attach_thread.tls_address;
}
void CrashReport::HandleDebugEventInfoException(const svc::DebugEventInfo &d) {
switch (d.info.exception.type) {
case svc::DebugExceptionType::UndefinedInstruction:
this->result = ResultCreportUndefinedInstruction;
break;
case svc::DebugExceptionType::InstructionAbort:
this->result = ResultCreportInstructionAbort;
break;
case svc::DebugExceptionType::DataAbort:
this->result = ResultCreportDataAbort;
break;
case svc::DebugExceptionType::AlignmentFault:
this->result = ResultCreportAlignmentFault;
break;
case svc::DebugExceptionType::UserBreak:
this->result = ResultCreportUserBreak;
/* Try to parse out the user break result. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
Result user_result = ResultSuccess;
if (IsAddressReadable(this->debug_handle, d.info.exception.specific.user_break.address, sizeof(user_result))) {
svcReadDebugProcessMemory(&user_result, this->debug_handle, d.info.exception.specific.user_break.address, sizeof(user_result));
}
/* Only copy over the user result if it gives us information (as by default nnSdk uses the success code, which is confusing). */
if (R_FAILED(user_result)) {
this->result = user_result;
}
}
/* Only copy over the user result if it gives us information (as by default nnSdk uses the success code, which is confusing). */
if (R_FAILED(user_result)) {
this->result = user_result;
}
}
break;
case DebugExceptionType::BadSvc:
this->result = ResultCreportBadSvc;
break;
case DebugExceptionType::SystemMemoryError:
this->result = ResultCreportSystemMemoryError;
d.info.exception.specific.raw = 0;
break;
case DebugExceptionType::DebuggerAttached:
case DebugExceptionType::BreakPoint:
case DebugExceptionType::DebuggerBreak:
default:
break;
case svc::DebugExceptionType::UndefinedSystemCall:
this->result = ResultCreportUndefinedSystemCall;
break;
case svc::DebugExceptionType::SystemMemoryError:
this->result = ResultCreportSystemMemoryError;
break;
case svc::DebugExceptionType::DebuggerAttached:
case svc::DebugExceptionType::BreakPoint:
case svc::DebugExceptionType::DebuggerBreak:
return;
}
/* Save exception info. */
this->exception_info = d.info.exception;
this->crashed_thread_id = d.thread_id;
}
void CrashReport::ProcessDyingMessage() {
/* Dying message is only stored starting in 5.0.0. */
if (GetRuntimeFirmwareVersion() < FirmwareVersion_500) {
return;
}
this->exception_info = d.info.exception;
this->crashed_thread_id = d.thread_id;
}
}
void CrashReport::HandleAttachThread(DebugEventInfo &d) {
this->thread_tls_map[d.info.attach_thread.thread_id] = d.info.attach_thread.tls_address;
}
/* Validate address/size. */
if (this->dying_message_address == 0 || this->dying_message_address & 0xFFF) {
return;
}
if (this->dying_message_size > sizeof(this->dying_message)) {
return;
}
void CrashReport::ProcessDyingMessage() {
/* Dying message is only stored starting in 5.0.0. */
if ((GetRuntimeFirmwareVersion() < FirmwareVersion_500)) {
return;
/* Validate that the current report isn't garbage. */
if (!IsOpen() || !IsComplete()) {
return;
}
/* Validate that we can read the dying message. */
if (!IsAddressReadable(this->debug_handle, this->dying_message_address, this->dying_message_size)) {
return;
}
/* Read the dying message. */
svcReadDebugProcessMemory(this->dying_message, this->debug_handle, this->dying_message_address, this->dying_message_size);
}
/* Validate the message address/size. */
if (this->dying_message_address == 0 || this->dying_message_address & 0xFFF) {
return;
}
if (this->dying_message_size > sizeof(this->dying_message)) {
return;
}
void CrashReport::SaveReport() {
/* Ensure path exists. */
EnsureReportDirectories();
/* Validate that the report isn't garbage. */
if (!IsOpen() || !WasSuccessful()) {
return;
}
/* Get a timestamp. */
u64 timestamp;
if (!TryGetCurrentTimestamp(&timestamp)) {
timestamp = svcGetSystemTick();
}
if (!IsAddressReadable(this->dying_message_address, this->dying_message_size)) {
return;
}
/* Save files. */
{
char file_path[FS_MAX_PATH];
svcReadDebugProcessMemory(this->dying_message, this->debug_handle, this->dying_message_address, this->dying_message_size);
}
bool CrashReport::IsAddressReadable(u64 address, u64 size, MemoryInfo *o_mi) {
MemoryInfo mi;
u32 pi;
if (o_mi == NULL) {
o_mi = &mi;
}
if (R_FAILED(svcQueryDebugProcessMemory(o_mi, &pi, this->debug_handle, address))) {
return false;
}
/* Must be read or read-write */
if ((o_mi->perm | Perm_W) != Perm_Rw) {
return false;
}
/* Must have space for both userdata address and userdata size. */
if (address < o_mi->addr || o_mi->addr + o_mi->size < address + size) {
return false;
}
return true;
}
bool CrashReport::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;
/* Save crash report. */
std::snprintf(file_path, sizeof(file_path), "sdmc:/atmosphere/crash_reports/%011lu_%016lx.log", timestamp, this->process_info.title_id);
FILE *fp = fopen(file_path, "w");
if (fp != nullptr) {
this->SaveToFile(fp);
fclose(fp);
fp = nullptr;
}
/* Dump threads. */
std::snprintf(file_path, sizeof(file_path), "sdmc:/atmosphere/crash_reports/dumps/%011lu_%016lx_thread_info.bin", timestamp, this->process_info.title_id);
fp = fopen(file_path, "wb");
if (fp != nullptr) {
this->thread_list.DumpBinary(fp, this->crashed_thread.GetThreadId());
fclose(fp);
fp = nullptr;
}
});
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 CrashReport::SaveToFile(FILE *f_report) {
fprintf(f_report, "Atmosphère Crash Report (v1.4):\n");
fprintf(f_report, "Result: 0x%X (2%03d-%04d)\n\n", this->result, R_MODULE(this->result), R_DESCRIPTION(this->result));
void CrashReport::EnsureReportDirectories() {
char path[FS_MAX_PATH];
strcpy(path, "sdmc:/atmosphere");
mkdir(path, S_IRWXU);
strcat(path, "/crash_reports");
mkdir(path, S_IRWXU);
strcat(path, "/dumps");
mkdir(path, S_IRWXU);
}
/* Process Info. */
char name_buf[0x10] = {};
static_assert(sizeof(name_buf) >= sizeof(this->process_info.name), "buffer overflow!");
std::memcpy(name_buf, this->process_info.name, sizeof(this->process_info.name));
fprintf(f_report, "Process Info:\n");
fprintf(f_report, " Process Name: %s\n", name_buf);
fprintf(f_report, " Title ID: %016lx\n", this->process_info.title_id);
fprintf(f_report, " Process ID: %016lx\n", this->process_info.process_id);
fprintf(f_report, " Process Flags: %08x\n", this->process_info.flags);
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
fprintf(f_report, " User Exception Address: %s\n", this->module_list.GetFormattedAddressString(this->process_info.user_exception_context_address));
}
void CrashReport::SaveReport() {
/* Save the report to the SD card. */
char report_path[FS_MAX_PATH];
/* Exception Info. */
fprintf(f_report, "Exception Info:\n");
fprintf(f_report, " Type: %s\n", GetDebugExceptionTypeString(this->exception_info.type));
fprintf(f_report, " Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.address));
switch (this->exception_info.type) {
case svc::DebugExceptionType::UndefinedInstruction:
fprintf(f_report, " Opcode: %08x\n", this->exception_info.specific.undefined_instruction.insn);
break;
case svc::DebugExceptionType::DataAbort:
case svc::DebugExceptionType::AlignmentFault:
if (this->exception_info.specific.raw != this->exception_info.address) {
fprintf(f_report, " Fault Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.specific.raw));
}
break;
case svc::DebugExceptionType::UndefinedSystemCall:
fprintf(f_report, " Svc Id: 0x%02x\n", this->exception_info.specific.undefined_system_call.id);
break;
case svc::DebugExceptionType::UserBreak:
fprintf(f_report, " Break Reason: 0x%x\n", this->exception_info.specific.user_break.break_reason);
fprintf(f_report, " Break Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.specific.user_break.address));
fprintf(f_report, " Break Size: 0x%lx\n", this->exception_info.specific.user_break.size);
break;
default:
break;
}
/* Ensure path exists. */
EnsureReportDirectories();
/* Crashed Thread Info. */
fprintf(f_report, "Crashed Thread Info:\n");
this->crashed_thread.SaveToFile(f_report);
/* Get a timestamp. */
u64 timestamp;
if (!GetCurrentTime(&timestamp)) {
timestamp = svcGetSystemTick();
}
/* Open report file. */
snprintf(report_path, sizeof(report_path) - 1, "sdmc:/atmosphere/crash_reports/%011lu_%016lx.log", timestamp, process_info.title_id);
FILE *f_report = fopen(report_path, "w");
if (f_report == NULL) {
return;
}
this->SaveToFile(f_report);
fclose(f_report);
/* Dump threads. */
snprintf(report_path, sizeof(report_path) - 1, "sdmc:/atmosphere/crash_reports/dumps/%011lu_%016lx_thread_info.bin", timestamp, process_info.title_id);
f_report = fopen(report_path, "wb");
this->thread_list.DumpBinary(f_report, this->crashed_thread_info.GetId());
fclose(f_report);
}
void CrashReport::SaveToFile(FILE *f_report) {
char buf[0x10] = {0};
fprintf(f_report, "Atmosphère Crash Report (v1.3):\n");
fprintf(f_report, "Result: 0x%X (2%03d-%04d)\n\n", this->result, R_MODULE(this->result), R_DESCRIPTION(this->result));
/* Process Info. */
memcpy(buf, this->process_info.name, sizeof(this->process_info.name));
fprintf(f_report, "Process Info:\n");
fprintf(f_report, " Process Name: %s\n", buf);
fprintf(f_report, " Title ID: %016lx\n", this->process_info.title_id);
fprintf(f_report, " Process ID: %016lx\n", this->process_info.process_id);
fprintf(f_report, " Process Flags: %08x\n", this->process_info.flags);
if ((GetRuntimeFirmwareVersion() >= FirmwareVersion_500)) {
fprintf(f_report, " User Exception Address: %s\n", this->code_list.GetFormattedAddressString(this->process_info.user_exception_context_address));
}
fprintf(f_report, "Exception Info:\n");
fprintf(f_report, " Type: %s\n", GetDebugExceptionTypeStr(this->exception_info.type));
fprintf(f_report, " Address: %s\n", this->code_list.GetFormattedAddressString(this->exception_info.address));
switch (this->exception_info.type) {
case DebugExceptionType::UndefinedInstruction:
fprintf(f_report, " Opcode: %08x\n", this->exception_info.specific.undefined_instruction.insn);
break;
case DebugExceptionType::DataAbort:
case DebugExceptionType::AlignmentFault:
if (this->exception_info.specific.raw != this->exception_info.address) {
fprintf(f_report, " Fault Address: %s\n", this->code_list.GetFormattedAddressString(this->exception_info.specific.raw));
}
break;
case DebugExceptionType::BadSvc:
fprintf(f_report, " Svc Id: 0x%02x\n", this->exception_info.specific.bad_svc.id);
break;
case DebugExceptionType::UserBreak:
fprintf(f_report, " Break Reason: 0x%lx\n", this->exception_info.specific.user_break.break_reason);
fprintf(f_report, " Break Address: %s\n", this->code_list.GetFormattedAddressString(this->exception_info.specific.user_break.address));
fprintf(f_report, " Break Size: 0x%lx\n", this->exception_info.specific.user_break.size);
break;
default:
break;
}
fprintf(f_report, "Crashed Thread Info:\n");
this->crashed_thread_info.SaveToFile(f_report);
if ((GetRuntimeFirmwareVersion() >= FirmwareVersion_500)) {
if (this->dying_message_size) {
/* Dying Message. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500 && this->dying_message_size != 0) {
fprintf(f_report, "Dying Message Info:\n");
fprintf(f_report, " Address: 0x%s\n", this->code_list.GetFormattedAddressString(this->dying_message_address));
fprintf(f_report, " Address: 0x%s\n", this->module_list.GetFormattedAddressString(this->dying_message_address));
fprintf(f_report, " Size: 0x%016lx\n", this->dying_message_size);
CrashReport::Memdump(f_report, " Dying Message: ", this->dying_message, this->dying_message_size);
DumpMemoryHexToFile(f_report, " Dying Message: ", this->dying_message, this->dying_message_size);
}
/* Module Info. */
fprintf(f_report, "Module Info:\n");
this->module_list.SaveToFile(f_report);
/* Thread Info. */
fprintf(f_report, "\nThread Report:\n");
this->thread_list.SaveToFile(f_report);
}
fprintf(f_report, "Code Region Info:\n");
this->code_list.SaveToFile(f_report);
fprintf(f_report, "\nThread Report:\n");
this->thread_list.SaveToFile(f_report);
}
/* Lifted from hactool. */
void CrashReport::Memdump(FILE *f, const char *prefix, const void *data, size_t size) {
uint8_t *p = (uint8_t *)data;
unsigned int prefix_len = strlen(prefix);
size_t offset = 0;
int first = 1;
while (size) {
unsigned int max = 32;
if (max > size) {
max = size;
}
if (first) {
fprintf(f, "%s", prefix);
first = 0;
} else {
fprintf(f, "%*s", prefix_len, "");
}
for (unsigned int i = 0; i < max; i++) {
fprintf(f, "%02X", p[offset++]);
}
fprintf(f, "\n");
size -= max;
}
}

143
stratosphere/creport/source/creport_crash_report.hpp
View file

@ -15,94 +15,87 @@
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include <cstdio>
#include <map>
#include "creport_debug_types.hpp"
#include "creport_thread_info.hpp"
#include "creport_code_info.hpp"
#include "creport_threads.hpp"
#include "creport_modules.hpp"
class CrashReport {
private:
Handle debug_handle = INVALID_HANDLE;
bool has_extra_info;
Result result = ResultCreportIncompleteReport;
namespace sts::creport {
/* Attach Process Info. */
AttachProcessInfo process_info{};
u64 dying_message_address = 0;
u64 dying_message_size = 0;
u8 dying_message[0x1000]{};
class CrashReport {
private:
static constexpr size_t DyingMessageSizeMax = 0x1000;
private:
Handle debug_handle = INVALID_HANDLE;
bool has_extra_info = true;
Result result = ResultCreportIncompleteReport;
static_assert(sizeof(dying_message) == 0x1000, "Incorrect definition for dying message!");
/* Attach process info. */
svc::DebugInfoAttachProcess process_info = {};
u64 dying_message_address = 0;
u64 dying_message_size = 0;
u8 dying_message[DyingMessageSizeMax] = {};
/* Exception Info. */
ExceptionInfo exception_info{};
u64 crashed_thread_id = 0;
ThreadInfo crashed_thread_info;
/* Exception info. */
svc::DebugInfoException exception_info = {};
u64 crashed_thread_id = 0;
ThreadInfo crashed_thread;
/* Extra Info. */
CodeList code_list;
ThreadList thread_list;
/* Lists. */
ModuleList module_list;
ThreadList thread_list;
/* Meta, used for building list. */
std::map<u64, u64> thread_tls_map;
public:
void BuildReport(u64 pid, bool has_extra_info);
FatalContext *GetFatalContext();
void SaveReport();
bool IsAddressReadable(u64 address, u64 size, MemoryInfo *mi = NULL);
static void Memdump(FILE *f, const char *prefix, const void *data, size_t size);
Result GetResult() {
return this->result;
}
bool WasSuccessful() {
return this->result != ResultCreportIncompleteReport;
}
bool OpenProcess(u64 pid) {
return R_SUCCEEDED(svcDebugActiveProcess(&debug_handle, pid));
}
bool IsOpen() {
return this->debug_handle != INVALID_HANDLE;
}
void Close() {
if (IsOpen()) {
svcCloseHandle(debug_handle);
debug_handle = INVALID_HANDLE;
/* Meta, used for building module/thread list. */
std::map<u64, u64> thread_tls_map;
public:
Result GetResult() const {
return this->result;
}
}
bool IsApplication() {
return (process_info.flags & 0x40) != 0;
}
bool IsComplete() const {
return this->result != ResultCreportIncompleteReport;
}
bool Is64Bit() {
return (process_info.flags & 0x01) != 0;
}
bool IsOpen() const {
return this->debug_handle != INVALID_HANDLE;
}
bool IsUserBreak() {
return this->exception_info.type == DebugExceptionType::UserBreak;
}
private:
void ProcessExceptions();
void ProcessDyingMessage();
void HandleAttachProcess(DebugEventInfo &d);
void HandleException(DebugEventInfo &d);
void HandleAttachThread(DebugEventInfo &d);
bool IsApplication() const {
return (this->process_info.flags & svc::CreateProcessFlag_IsApplication) != 0;
}
void SaveToFile(FILE *f);
bool Is64Bit() const {
return (this->process_info.flags & svc::CreateProcessFlag_Is64Bit) != 0;
}
void EnsureReportDirectories();
bool GetCurrentTime(u64 *out);
};
bool IsUserBreak() const {
return this->exception_info.type == svc::DebugExceptionType::UserBreak;
}
bool OpenProcess(u64 process_id) {
return R_SUCCEEDED(svcDebugActiveProcess(&this->debug_handle, process_id));
}
void Close() {
if (this->IsOpen()) {
svcCloseHandle(this->debug_handle);
this->debug_handle = INVALID_HANDLE;
}
}
void BuildReport(u64 process_id, bool has_extra_info);
void GetFatalContext(FatalContext *out) const;
void SaveReport();
private:
void ProcessExceptions();
void ProcessDyingMessage();
void HandleDebugEventInfoAttachProcess(const svc::DebugEventInfo &d);
void HandleDebugEventInfoAttachThread(const svc::DebugEventInfo &d);
void HandleDebugEventInfoException(const svc::DebugEventInfo &d);
void SaveToFile(FILE *f_report);
};
}

150
stratosphere/creport/source/creport_debug_types.hpp
View file

@ -1,150 +0,0 @@
/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
union StackFrame {
struct {
u64 fp;
u64 lr;
} frame_64;
struct {
u32 fp;
u32 lr;
} frame_32;
};
struct AttachProcessInfo {
u64 title_id;
u64 process_id;
char name[0xC];
u32 flags;
u64 user_exception_context_address; /* 5.0.0+ */
};
struct AttachThreadInfo {
u64 thread_id;
u64 tls_address;
u64 entrypoint;
};
/* TODO: ExitProcessInfo */
/* TODO: ExitThreadInfo */
enum class DebugExceptionType : u32 {
UndefinedInstruction = 0,
InstructionAbort = 1,
DataAbort = 2,
AlignmentFault = 3,
DebuggerAttached = 4,
BreakPoint = 5,
UserBreak = 6,
DebuggerBreak = 7,
BadSvc = 8,
SystemMemoryError = 9,
};
static inline const char *GetDebugExceptionTypeStr(DebugExceptionType type) {
switch (type) {
case DebugExceptionType::UndefinedInstruction:
return "Undefined Instruction";
case DebugExceptionType::InstructionAbort:
return "Instruction Abort";
case DebugExceptionType::DataAbort:
return "Data Abort";
case DebugExceptionType::AlignmentFault:
return "Alignment Fault";
case DebugExceptionType::DebuggerAttached:
return "Debugger Attached";
case DebugExceptionType::BreakPoint:
return "Break Point";
case DebugExceptionType::UserBreak:
return "User Break";
case DebugExceptionType::DebuggerBreak:
return "Debugger Break";
case DebugExceptionType::BadSvc:
return "Bad Svc";
case DebugExceptionType::SystemMemoryError:
return "System Memory Error";
default:
return "Unknown";
}
}
struct UndefinedInstructionInfo {
u32 insn;
};
struct DataAbortInfo {
u64 address;
};
struct AlignmentFaultInfo {
u64 address;
};
struct UserBreakInfo {
u64 break_reason;
u64 address;
u64 size;
};
struct BadSvcInfo {
u32 id;
};
union SpecificExceptionInfo {
UndefinedInstructionInfo undefined_instruction;
DataAbortInfo data_abort;
AlignmentFaultInfo alignment_fault;
UserBreakInfo user_break;
BadSvcInfo bad_svc;
u64 raw;
};
struct ExceptionInfo {
DebugExceptionType type;
u64 address;
SpecificExceptionInfo specific;
};
enum class DebugEventType : u32 {
AttachProcess = 0,
AttachThread = 1,
ExitProcess = 2,
ExitThread = 3,
Exception = 4
};
union DebugInfo {
AttachProcessInfo attach_process;
AttachThreadInfo attach_thread;
ExceptionInfo exception;
};
struct DebugEventInfo {
DebugEventType type;
u32 flags;
u64 thread_id;
union {
DebugInfo info;
u64 _[0x40/sizeof(u64)];
};
};
static_assert(sizeof(DebugEventInfo) >= 0x50, "Incorrect DebugEventInfo definition!");

86
stratosphere/creport/source/creport_main.cpp
View file

@ -21,9 +21,9 @@
#include <malloc.h>
#include <switch.h>
#include <stratosphere/firmware_version.hpp>
#include <stratosphere.hpp>
#include "creport_crash_report.hpp"
#include "creport_utils.hpp"
extern "C" {
@ -81,65 +81,55 @@ void __appExit(void) {
fsExit();
}
static u64 creport_parse_u64(char *s) {
/* Official creport uses this custom parsing logic... */
u64 out_val = 0;
for (unsigned int i = 0; i < 20 && s[i]; i++) {
if ('0' <= s[i] && s[i] <= '9') {
out_val *= 10;
out_val += (s[i] - '0');
} else {
break;
}
}
return out_val;
}
static CrashReport g_Creport;
static sts::creport::CrashReport g_Creport;
int main(int argc, char **argv) {
/* Validate arguments. */
if (argc < 2) {
return 0;
return EXIT_FAILURE;
}
for (int i = 0; i < argc; i++) {
if (argv[i] == NULL) {
return 0;
return EXIT_FAILURE;
}
}
/* Parse crashed PID. */
u64 crashed_pid = creport_parse_u64(argv[0]);
u64 crashed_pid = sts::creport::ParseProcessIdArgument(argv[0]);
/* Try to debug the crashed process. */
g_Creport.BuildReport(crashed_pid, argv[1][0] == '1');
if (g_Creport.WasSuccessful()) {
g_Creport.SaveReport();
DoWithSmSession([&]() {
if (R_SUCCEEDED(nsdevInitialize())) {
nsdevTerminateProcess(crashed_pid);
nsdevExit();
}
});
/* Don't fatal if we have extra info. */
if ((GetRuntimeFirmwareVersion() >= FirmwareVersion_500)) {
if (g_Creport.IsApplication()) {
return 0;
}
} else if (argv[1][0] == '1') {
return 0;
}
/* Also don't fatal if we're a user break. */
if (g_Creport.IsUserBreak()) {
return 0;
}
FatalContext *ctx = g_Creport.GetFatalContext();
fatalWithContext(g_Creport.GetResult(), FatalType_ErrorScreen, ctx);
if (!g_Creport.IsComplete()) {
return EXIT_FAILURE;
}
}
/* Save report to file. */
g_Creport.SaveReport();
/* Try to terminate the process. */
{
auto ns_holder = sts::sm::ScopedServiceHolder<nsdevInitialize, nsdevExit>();
if (R_SUCCEEDED(ns_holder.GetResult())) {
nsdevTerminateProcess(crashed_pid);
}
}
/* Don't fatal if we have extra info, or if we're 5.0.0+ and an application crashed. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
if (g_Creport.IsApplication()) {
return EXIT_SUCCESS;
}
} else if (argv[1][0] == '1') {
return EXIT_SUCCESS;
}
/* Also don't fatal if we're a user break. */
if (g_Creport.IsUserBreak()) {
return EXIT_SUCCESS;
}
/* Throw fatal error. */
FatalContext ctx;
g_Creport.GetFatalContext(&ctx);
fatalWithContext(g_Creport.GetResult(), FatalType_ErrorScreen, &ctx);
}

264
stratosphere/creport/source/creport_modules.cpp Normal file
View file

@ -0,0 +1,264 @@
/*
* Copyright (c) 2018-2019 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 "creport_modules.hpp"
#include "creport_utils.hpp"
namespace sts::creport {
namespace {
/* Convenience definitions/types. */
constexpr size_t ModulePathLengthMax = 0x200;
constexpr u8 GnuSignature[4] = {'G', 'N', 'U', 0};
struct ModulePath {
u32 zero;
u32 path_length;
char path[ModulePathLengthMax];
};
static_assert(sizeof(ModulePath) == 0x208, "ModulePath definition!");
struct RoDataStart {
union {
u64 deprecated_rwdata_offset;
ModulePath module_path;
};
};
static_assert(sizeof(RoDataStart) == sizeof(ModulePath), "RoDataStart definition!");
}
void ModuleList::SaveToFile(FILE *f_report) {
fprintf(f_report, " Number of Modules: %zu\n", this->num_modules);
for (size_t i = 0; i < this->num_modules; i++) {
const auto& module = this->modules[i];
fprintf(f_report, " Module %02zu:\n", i);
fprintf(f_report, " Address: %016lx-%016lx\n", module.start_address, module.end_address);
if (std::strcmp(this->modules[i].name, "") != 0) {
fprintf(f_report, " Name: %s\n", module.name);
}
DumpMemoryHexToFile(f_report, " Build Id: ", module.build_id, sizeof(module.build_id));
}
}
void ModuleList::FindModulesFromThreadInfo(Handle debug_handle, const ThreadInfo &thread) {
/* Set the debug handle, for access in other member functions. */
this->debug_handle = debug_handle;
/* Try to add the thread's PC. */
this->TryAddModule(thread.GetPC());
/* Try to add the thread's LR. */
this->TryAddModule(thread.GetLR());
/* Try to add all the addresses in the thread's stacktrace. */
for (size_t i = 0; i < thread.GetStackTraceSize(); i++) {
this->TryAddModule(thread.GetStackTrace(i));
}
}
void ModuleList::TryAddModule(uintptr_t guess) {
/* Try to locate module from guess. */
uintptr_t base_address = 0;
if (!this->TryFindModule(&base_address, guess)) {
return;
}
/* Check whether we already have this module. */
for (size_t i = 0; i < this->num_modules; i++) {
if (this->modules[i].start_address <= base_address && base_address < this->modules[i].end_address) {
return;
}
}
/* Add all contiguous modules. */
uintptr_t cur_address = base_address;
while (this->num_modules < ModuleCountMax) {
/* Get the region extents. */
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, this->debug_handle, cur_address))) {
break;
}
/* Parse module. */
if (mi.perm == Perm_Rx) {
auto& module = this->modules[this->num_modules++];
module.start_address = mi.addr;
module.end_address = mi.addr + mi.size;
GetModuleName(module.name, module.start_address, module.end_address);
GetModuleBuildId(module.build_id, module.end_address);
/* Some homebrew won't have a name. Add a fake one for readability. */
if (std::strcmp(module.name, "") == 0) {
std::snprintf(module.name, sizeof(module.name), "[%02x%02x%02x%02x]", module.build_id[0], module.build_id[1], module.build_id[2], module.build_id[3]);
}
}
/* If we're out of readable memory, we're done reading code. */
if (mi.type == MemType_Unmapped || mi.type == MemType_Reserved) {
break;
}
/* Verify we're not getting stuck in an infinite loop. */
if (mi.size == 0 || cur_address + mi.size <= cur_address) {
break;
}
cur_address += mi.size;
}
}
bool ModuleList::TryFindModule(uintptr_t *out_address, uintptr_t guess) {
/* Query the memory region our guess falls in. */
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, this->debug_handle, guess))) {
return false;
}
/* If we fall into a RW region, it may be rwdata. Query the region before it, which may be rodata or text. */
if (mi.perm == Perm_Rw) {
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, mi.addr - 4))) {
return false;
}
}
/* If we fall into an RO region, it may be rodata. Query the region before it, which should be text. */
if (mi.perm == Perm_R) {
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, mi.addr - 4))) {
return false;
}
}
/* We should, at this point, be looking at an executable region (text). */
if (mi.perm != Perm_Rx) {
return false;
}
/* Modules are a series of contiguous (text/rodata/rwdata) regions. */
/* Iterate backwards until we find unmapped memory, to find the start of the set of modules loaded here. */
while (mi.addr > 0) {
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, mi.addr - 4))) {
return false;
}
if (mi.type == MemType_Unmapped) {
/* We've found unmapped memory, so output the mapped memory afterwards. */
*out_address = mi.addr + mi.size;
return true;
}
}
/* Something weird happened here. */
return false;
}
void ModuleList::GetModuleName(char *out_name, uintptr_t text_start_address, uintptr_t ro_start_address) {
/* Clear output. */
std::memset(out_name, 0, ModuleNameLengthMax);
/* Read module path from process memory. */
RoDataStart rodata_start;
{
MemoryInfo mi;
u32 pi;
/* Verify .rodata is read-only. */
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, this->debug_handle, ro_start_address)) || mi.perm != Perm_R) {
return;
}
/* Calculate start of rwdata. */
const u64 rw_start_address = mi.addr + mi.size;
/* Read start of .rodata. */
if (R_FAILED(svcReadDebugProcessMemory(&rodata_start, this->debug_handle, ro_start_address, sizeof(rodata_start)))) {
return;
}
/* If data is valid under deprecated format, there's no name. */
if (text_start_address + rodata_start.deprecated_rwdata_offset == rw_start_address) {
return;
}
/* Also validate that we're looking at a valid name. */
if (rodata_start.module_path.zero != 0 || rodata_start.module_path.path_length != strnlen(rodata_start.module_path.path, sizeof(rodata_start.module_path.path))) {
return;
}
}
/* Start after last slash in path. */
const char *path = rodata_start.module_path.path;
int ofs;
for (ofs = rodata_start.module_path.path_length; ofs >= 0; ofs--) {
if (path[ofs] == '/' || path[ofs] == '\\') {
break;
}
}
ofs++;
/* Copy name to output. */
const size_t name_size = std::min(ModuleNameLengthMax, sizeof(rodata_start.module_path.path) - ofs);
std::strncpy(out_name, path + ofs, name_size);
out_name[ModuleNameLengthMax - 1] = '\x00';
}
void ModuleList::GetModuleBuildId(u8 *out_build_id, uintptr_t ro_start_address) {
/* Clear output. */
std::memset(out_build_id, 0, ModuleBuildIdLength);
/* Verify .rodata is read-only. */
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, this->debug_handle, ro_start_address)) || mi.perm != Perm_R) {
return;
}
/* We want to read the last two pages of .rodata. */
static u8 s_last_rodata_pages[2 * 0x1000];
const size_t read_size = mi.size >= sizeof(s_last_rodata_pages) ? sizeof(s_last_rodata_pages) : (sizeof(s_last_rodata_pages) / 2);
if (R_FAILED(svcReadDebugProcessMemory(s_last_rodata_pages, this->debug_handle, mi.addr + mi.size - read_size, read_size))) {
return;
}
/* Find GNU\x00 to locate start of build id. */
for (int ofs = read_size - sizeof(GnuSignature) - ModuleBuildIdLength; ofs >= 0; ofs--) {
if (std::memcmp(s_last_rodata_pages + ofs, GnuSignature, sizeof(GnuSignature)) == 0) {
std::memcpy(out_build_id, s_last_rodata_pages + ofs + sizeof(GnuSignature), ModuleBuildIdLength);
break;
}
}
}
const char *ModuleList::GetFormattedAddressString(uintptr_t address) {
/* Print default formatted string. */
std::snprintf(this->address_str_buf, sizeof(this->address_str_buf), "%016lx", address);
/* See if the address is inside a module, for pretty-printing. */
for (size_t i = 0; i < this->num_modules; i++) {
const auto& module = this->modules[i];
if (module.start_address <= address && address < module.end_address) {
std::snprintf(this->address_str_buf, sizeof(this->address_str_buf), "%016lx (%s + 0x%lx)", address, module.name, address - module.start_address);
break;
}
}
return this->address_str_buf;
}
}

66
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/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "creport_threads.hpp"
namespace sts::creport {
class ModuleList {
private:
static constexpr size_t ModuleCountMax = 0x60;
static constexpr size_t ModuleNameLengthMax = 0x20;
static constexpr size_t ModuleBuildIdLength = 0x20;
struct ModuleInfo {
char name[ModuleNameLengthMax];
u8 build_id[ModuleBuildIdLength];
u64 start_address;
u64 end_address;
};
private:
Handle debug_handle;
size_t num_modules;
ModuleInfo modules[ModuleCountMax];
/* For pretty-printing. */
char address_str_buf[0x280];
public:
ModuleList() : debug_handle(INVALID_HANDLE), num_modules(0) {
std::memset(this->modules, 0, sizeof(this->modules));
}
size_t GetModuleCount() const {
return this->num_modules;
}
u64 GetModuleStartAddress(size_t i) const {
return this->modules[i].start_address;
}
void FindModulesFromThreadInfo(Handle debug_handle, const ThreadInfo &thread);
const char *GetFormattedAddressString(uintptr_t address);
void SaveToFile(FILE *f_report);
private:
bool TryFindModule(uintptr_t *out_address, uintptr_t guess);
void TryAddModule(uintptr_t guess);
void GetModuleName(char *out_name, uintptr_t text_start, uintptr_t ro_start);
void GetModuleBuildId(u8 *out_build_id, uintptr_t ro_start);
};
}

225
stratosphere/creport/source/creport_thread_info.cpp
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@ -1,225 +0,0 @@
/*
* Copyright (c) 2018-2019 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 <switch.h>
#include <cstring>
#include "creport_thread_info.hpp"
#include "creport_crash_report.hpp"
void ThreadInfo::SaveToFile(FILE *f_report) {
fprintf(f_report, " Thread ID: %016lx\n", this->thread_id);
if (strcmp(name, "") != 0) {
fprintf(f_report, " Thread Name: %s\n", this->name);
}
if (stack_top) {
fprintf(f_report, " Stack: %016lx-%016lx\n", this->stack_bottom, this->stack_top);
}
fprintf(f_report, " Registers:\n");
{
for (unsigned int i = 0; i <= 28; i++) {
fprintf(f_report, " X[%02u]: %s\n", i, this->code_list->GetFormattedAddressString(this->context.cpu_gprs[i].x));
}
fprintf(f_report, " FP: %s\n", this->code_list->GetFormattedAddressString(this->context.fp));
fprintf(f_report, " LR: %s\n", this->code_list->GetFormattedAddressString(this->context.lr));
fprintf(f_report, " SP: %s\n", this->code_list->GetFormattedAddressString(this->context.sp));
fprintf(f_report, " PC: %s\n", this->code_list->GetFormattedAddressString(this->context.pc.x));
}
fprintf(f_report, " Stack Trace:\n");
for (unsigned int i = 0; i < this->stack_trace_size; i++) {
fprintf(f_report, " ReturnAddress[%02u]: %s\n", i, this->code_list->GetFormattedAddressString(this->stack_trace[i]));
}
if (this->tls_address != 0) {
fprintf(f_report, " TLS Address: %016lx\n", this->tls_address);
fprintf(f_report, " TLS Dump: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (size_t i = 0; i < 0x10; i++) {
const u32 ofs = i * 0x10;
fprintf(f_report, " %012lx %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
this->tls_address + ofs, this->tls[ofs + 0], this->tls[ofs + 1], this->tls[ofs + 2], this->tls[ofs + 3], this->tls[ofs + 4], this->tls[ofs + 5], this->tls[ofs + 6], this->tls[ofs + 7],
this->tls[ofs + 8], this->tls[ofs + 9], this->tls[ofs + 10], this->tls[ofs + 11], this->tls[ofs + 12], this->tls[ofs + 13], this->tls[ofs + 14], this->tls[ofs + 15]);
}
}
}
bool ThreadInfo::ReadFromProcess(std::map<u64, u64> &tls_map, Handle debug_handle, u64 thread_id, bool is_64_bit) {
this->thread_id = thread_id;
/* Verify that the thread is running or waiting. */
{
u64 _;
u32 thread_state;
if (R_FAILED(svcGetDebugThreadParam(&_, &thread_state, debug_handle, this->thread_id, DebugThreadParam_State))) {
return false;
}
if (thread_state > 1) {
return false;
}
}
/* Get the thread context. */
if (R_FAILED(svcGetDebugThreadContext(&this->context, debug_handle, this->thread_id, 0xF))) {
return false;
}
/* In AArch32 mode the LR, FP, and SP registers aren't set correctly in the ThreadContext by svcGetDebugThreadParam... */
if (!is_64_bit) {
this->context.fp = this->context.cpu_gprs[11].x;
this->context.sp = this->context.cpu_gprs[13].x;
this->context.lr = this->context.cpu_gprs[14].x;
}
/* Parse information from TLS if present. */
if (tls_map.find(thread_id) != tls_map.end()) {
this->tls_address = tls_map[thread_id];
u8 thread_tls[0x200];
if (R_SUCCEEDED(svcReadDebugProcessMemory(thread_tls, debug_handle, this->tls_address, sizeof(thread_tls)))) {
std::memcpy(this->tls, thread_tls, sizeof(this->tls));
/* Try to detect libnx threads, and skip name parsing then. */
if (*(reinterpret_cast<u32 *>(&thread_tls[0x1E0])) != 0x21545624) {
u8 thread_type[0x1D0];
const u64 thread_type_addr = *(reinterpret_cast<u64 *>(&thread_tls[0x1F8]));
if (R_SUCCEEDED(svcReadDebugProcessMemory(thread_type, debug_handle, thread_type_addr, sizeof(thread_type)))) {
/* Check thread name is actually at thread name. */
if (*(reinterpret_cast<u64 *>(&thread_type[0x1A8])) == thread_type_addr + 0x188) {
std::memcpy(this->name, thread_type + 0x188, 0x20);
}
}
}
}
}
/* Try to locate stack top/bottom. */
TryGetStackInfo(debug_handle);
u64 cur_fp = this->context.fp;
if (is_64_bit) {
for (unsigned int i = 0; i < sizeof(this->stack_trace)/sizeof(u64); i++) {
/* Validate the current frame. */
if (cur_fp == 0 || (cur_fp & 0xF)) {
break;
}
/* Read a new frame. */
StackFrame cur_frame;
if (R_FAILED(svcReadDebugProcessMemory(&cur_frame, debug_handle, cur_fp, sizeof(cur_frame.frame_64)))) {
break;
}
/* Advance to the next frame. */
this->stack_trace[this->stack_trace_size++] = cur_frame.frame_64.lr;
cur_fp = cur_frame.frame_64.fp;
}
} else {
for (unsigned int i = 0; i < sizeof(this->stack_trace)/sizeof(u64); i++) {
/* Validate the current frame. */
if (cur_fp == 0 || (cur_fp & 0x7)) {
break;
}
/* Read a new frame. */
StackFrame cur_frame;
if (R_FAILED(svcReadDebugProcessMemory(&cur_frame, debug_handle, cur_fp, sizeof(cur_frame.frame_32)))) {
break;
}
/* Advance to the next frame. */
this->stack_trace[this->stack_trace_size++] = cur_frame.frame_32.lr;
cur_fp = cur_frame.frame_32.fp;
}
}
return true;
}
void ThreadInfo::TryGetStackInfo(Handle debug_handle) {
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, this->context.sp))) {
return;
}
/* Check if sp points into the stack. */
if (mi.type == MemType_MappedMemory) {
this->stack_bottom = mi.addr;
this->stack_top = mi.addr + mi.size;
return;
}
/* It's possible that sp is below the stack... */
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, mi.addr + mi.size))) {
return;
}
if (mi.type == MemType_MappedMemory) {
this->stack_bottom = mi.addr;
this->stack_top = mi.addr + mi.size;
}
}
void ThreadInfo::DumpBinary(FILE *f_bin) {
fwrite(&this->thread_id, sizeof(this->thread_id), 1, f_bin);
fwrite(&this->context, sizeof(this->context), 1, f_bin);
fwrite(&this->tls_address, sizeof(this->tls_address), 1, f_bin);
fwrite(&this->tls, sizeof(this->tls), 1, f_bin);
fwrite(&this->name, sizeof(this->name), 1, f_bin);
u64 sts = this->stack_trace_size;
fwrite(&sts, sizeof(sts), 1, f_bin);
fwrite(this->stack_trace, sizeof(u64), this->stack_trace_size, f_bin);
fwrite(&this->stack_bottom, sizeof(this->stack_bottom), 1, f_bin);
fwrite(&this->stack_top, sizeof(this->stack_top), 1, f_bin);
}
void ThreadList::DumpBinary(FILE *f_bin, u64 crashed_id) {
u32 magic = 0x31495444; /* 'DTI1' */
fwrite(&magic, sizeof(magic), 1, f_bin);
fwrite(&this->thread_count, sizeof(u32), 1, f_bin);
fwrite(&crashed_id, sizeof(crashed_id), 1, f_bin);
for (unsigned int i = 0; i < this->thread_count; i++) {
this->thread_infos[i].DumpBinary(f_bin);
}
}
void ThreadList::SaveToFile(FILE *f_report) {
fprintf(f_report, "Number of Threads: %02u\n", this->thread_count);
for (unsigned int i = 0; i < this->thread_count; i++) {
fprintf(f_report, "Threads[%02u]:\n", i);
this->thread_infos[i].SaveToFile(f_report);
}
}
void ThreadList::ReadThreadsFromProcess(std::map<u64, u64> &tls_map, Handle debug_handle, bool is_64_bit) {
u32 thread_count;
u64 thread_ids[max_thread_count];
if (R_FAILED(svcGetThreadList(&thread_count, thread_ids, max_thread_count, debug_handle))) {
this->thread_count = 0;
return;
}
if (thread_count > max_thread_count) {
thread_count = max_thread_count;
}
for (unsigned int i = 0; i < thread_count; i++) {
if (this->thread_infos[this->thread_count].ReadFromProcess(tls_map, debug_handle, thread_ids[this->thread_count], is_64_bit)) {
this->thread_count++;
}
}
}

70
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@ -1,70 +0,0 @@
/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
#include <cstdio>
#include <map>
#include "creport_debug_types.hpp"
class CodeList;
class ThreadInfo {
public:
ThreadContext context{};
u64 thread_id = 0;
u64 stack_top = 0;
u64 stack_bottom = 0;
u64 stack_trace[0x20]{};
u32 stack_trace_size = 0;
u64 tls_address = 0;
u8 tls[0x100]{};
char name[0x40]{};
CodeList *code_list;
public:
u64 GetPC() const { return context.pc.x; }
u64 GetLR() const { return context.lr; }
u64 GetId() const { return thread_id; }
u32 GetStackTraceSize() const { return stack_trace_size; }
u64 GetStackTrace(u32 i) const { return stack_trace[i]; }
bool ReadFromProcess(std::map<u64, u64> &tls_map, Handle debug_handle, u64 thread_id, bool is_64_bit);
void SaveToFile(FILE *f_report);
void DumpBinary(FILE *f_bin);
void SetCodeList(CodeList *cl) { this->code_list = cl; }
private:
void TryGetStackInfo(Handle debug_handle);
};
class ThreadList {
private:
static const size_t max_thread_count = 0x60;
u32 thread_count = 0;
ThreadInfo thread_infos[max_thread_count];
public:
u32 GetThreadCount() const { return thread_count; }
const ThreadInfo *GetThreadInfo(u32 i) const { return &thread_infos[i]; }
void SaveToFile(FILE *f_report);
void DumpBinary(FILE *f_bin, u64 crashed_id);
void ReadThreadsFromProcess(std::map<u64, u64> &tls_map, Handle debug_handle, bool is_64_bit);
void SetCodeList(CodeList *cl) {
for (u32 i = 0; i < thread_count; i++) {
thread_infos[i].SetCodeList(cl);
}
}
};

267
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/*
* Copyright (c) 2018-2019 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 "creport_threads.hpp"
#include "creport_modules.hpp"
namespace sts::creport {
namespace {
/* Convenience definitions. */
constexpr u32 LibnxThreadVarMagic = 0x21545624; /* !TV$ */
constexpr u32 DumpedThreadInfoMagic = 0x32495444; /* DTI2 */
/* Types. */
template<typename T>
struct StackFrame {
T fp;
T lr;
};
/* Helpers. */
template<typename T>
void ReadStackTrace(size_t *out_trace_size, u64 *out_trace, size_t max_out_trace_size, Handle debug_handle, u64 fp) {
size_t trace_size = 0;
u64 cur_fp = fp;
for (size_t i = 0; i < max_out_trace_size; i++) {
/* Validate the current frame. */
if (cur_fp == 0 || (cur_fp % sizeof(T) != 0)) {
break;
}
/* Read a new frame. */
StackFrame<T> cur_frame;
if (R_FAILED(svcReadDebugProcessMemory(&cur_frame, debug_handle, cur_fp, sizeof(cur_frame)))) {
break;
}
/* Advance to the next frame. */
out_trace[trace_size++] = cur_frame.lr;
cur_fp = cur_frame.fp;
}
*out_trace_size = trace_size;
}
}
void ThreadList::SaveToFile(FILE *f_report) {
fprintf(f_report, "Number of Threads: %02zu\n", this->thread_count);
for (size_t i = 0; i < this->thread_count; i++) {
fprintf(f_report, "Threads[%02zu]:\n", i);
this->threads[i].SaveToFile(f_report);
}
}
void ThreadInfo::SaveToFile(FILE *f_report) {
fprintf(f_report, " Thread ID: %016lx\n", this->thread_id);
if (std::strcmp(this->name, "") != 0) {
fprintf(f_report, " Thread Name: %s\n", this->name);
}
if (this->stack_top != 0) {
fprintf(f_report, " Stack Region: %016lx-%016lx\n", this->stack_bottom, this->stack_top);
}
fprintf(f_report, " Registers:\n");
{
for (unsigned int i = 0; i <= 28; i++) {
fprintf(f_report, " X[%02u]: %s\n", i, this->module_list->GetFormattedAddressString(this->context.cpu_gprs[i].x));
}
fprintf(f_report, " FP: %s\n", this->module_list->GetFormattedAddressString(this->context.fp));
fprintf(f_report, " LR: %s\n", this->module_list->GetFormattedAddressString(this->context.lr));
fprintf(f_report, " SP: %s\n", this->module_list->GetFormattedAddressString(this->context.sp));
fprintf(f_report, " PC: %s\n", this->module_list->GetFormattedAddressString(this->context.pc.x));
}
if (this->stack_trace_size != 0) {
fprintf(f_report, " Stack Trace:\n");
for (size_t i = 0; i < this->stack_trace_size; i++) {
fprintf(f_report, " ReturnAddress[%02zu]: %s\n", i, this->module_list->GetFormattedAddressString(this->stack_trace[i]));
}
}
if (this->stack_dump_base != 0) {
fprintf(f_report, " Stack Dump: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (size_t i = 0; i < 0x10; i++) {
const size_t ofs = i * 0x10;
fprintf(f_report, " %012lx %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
this->stack_dump_base + ofs, this->stack_dump[ofs + 0], this->stack_dump[ofs + 1], this->stack_dump[ofs + 2], this->stack_dump[ofs + 3], this->stack_dump[ofs + 4], this->stack_dump[ofs + 5], this->stack_dump[ofs + 6], this->stack_dump[ofs + 7],
this->stack_dump[ofs + 8], this->stack_dump[ofs + 9], this->stack_dump[ofs + 10], this->stack_dump[ofs + 11], this->stack_dump[ofs + 12], this->stack_dump[ofs + 13], this->stack_dump[ofs + 14], this->stack_dump[ofs + 15]);
}
}
if (this->tls_address != 0) {
fprintf(f_report, " TLS Address: %016lx\n", this->tls_address);
fprintf(f_report, " TLS Dump: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (size_t i = 0; i < 0x10; i++) {
const size_t ofs = i * 0x10;
fprintf(f_report, " %012lx %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
this->tls_address + ofs, this->tls[ofs + 0], this->tls[ofs + 1], this->tls[ofs + 2], this->tls[ofs + 3], this->tls[ofs + 4], this->tls[ofs + 5], this->tls[ofs + 6], this->tls[ofs + 7],
this->tls[ofs + 8], this->tls[ofs + 9], this->tls[ofs + 10], this->tls[ofs + 11], this->tls[ofs + 12], this->tls[ofs + 13], this->tls[ofs + 14], this->tls[ofs + 15]);
}
}
}
bool ThreadInfo::ReadFromProcess(Handle debug_handle, std::map<u64, u64> &tls_map, u64 thread_id, bool is_64_bit) {
/* Set thread id. */
this->thread_id = thread_id;
/* Verify that the thread is running or waiting. */
{
u64 _;
u32 _thread_state;
if (R_FAILED(svcGetDebugThreadParam(&_, &_thread_state, debug_handle, this->thread_id, DebugThreadParam_State))) {
return false;
}
const svc::ThreadState thread_state = static_cast<svc::ThreadState>(_thread_state);
if (thread_state != svc::ThreadState::Waiting && thread_state != svc::ThreadState::Running) {
return false;
}
}
/* Get the thread context. */
if (R_FAILED(svcGetDebugThreadContext(&this->context, debug_handle, this->thread_id, svc::ThreadContextFlag_All))) {
return false;
}
/* In aarch32 mode svcGetDebugThreadParam does not set the LR, FP, and SP registers correctly. */
if (!is_64_bit) {
this->context.fp = this->context.cpu_gprs[11].x;
this->context.sp = this->context.cpu_gprs[13].x;
this->context.lr = this->context.cpu_gprs[14].x;
}
/* Read TLS, if present. */
/* TODO: struct definitions for nnSdk's ThreadType/TLS Layout? */
if (tls_map.find(thread_id) != tls_map.end()) {
this->tls_address = tls_map[thread_id];
u8 thread_tls[0x200];
if (R_SUCCEEDED(svcReadDebugProcessMemory(thread_tls, debug_handle, this->tls_address, sizeof(thread_tls)))) {
std::memcpy(this->tls, thread_tls, sizeof(this->tls));
/* Try to detect libnx threads, and skip name parsing then. */
if (*(reinterpret_cast<u32 *>(&thread_tls[0x1E0])) != LibnxThreadVarMagic) {
u8 thread_type[0x1D0];
const u64 thread_type_addr = *(reinterpret_cast<u64 *>(&thread_tls[0x1F8]));
if (R_SUCCEEDED(svcReadDebugProcessMemory(thread_type, debug_handle, thread_type_addr, sizeof(thread_type)))) {
/* Check thread name is actually at thread name. */
static_assert(0x1A8 - 0x188 == NameLengthMax, "NameLengthMax definition!");
if (*(reinterpret_cast<u64 *>(&thread_type[0x1A8])) == thread_type_addr + 0x188) {
std::memcpy(this->name, thread_type + 0x188, NameLengthMax);
}
}
}
}
}
/* Parse stack extents and dump stack. */
this->TryGetStackInfo(debug_handle);
/* Dump stack trace. */
if (is_64_bit) {
ReadStackTrace<u64>(&this->stack_trace_size, this->stack_trace, StackTraceSizeMax, debug_handle, this->context.fp);
} else {
ReadStackTrace<u32>(&this->stack_trace_size, this->stack_trace, StackTraceSizeMax, debug_handle, this->context.fp);
}
return true;
}
void ThreadInfo::TryGetStackInfo(Handle debug_handle) {
/* Query stack region. */
MemoryInfo mi;
u32 pi;
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, this->context.sp))) {
return;
}
/* Check if sp points into the stack. */
if (mi.type != MemType_MappedMemory) {
/* It's possible that sp is below the stack... */
if (R_FAILED(svcQueryDebugProcessMemory(&mi, &pi, debug_handle, mi.addr + mi.size)) || mi.type != MemType_MappedMemory) {
return;
}
}
/* Save stack extents. */
this->stack_bottom = mi.addr;
this->stack_top = mi.addr + mi.size;
/* We always want to dump 0x100 of stack, starting from the lowest 0x10-byte aligned address below the stack pointer. */
/* Note: if the stack pointer is below the stack bottom, we will start dumping from the stack bottom. */
this->stack_dump_base = std::min(std::max(this->context.sp & ~0xFul, this->stack_bottom), this->stack_top - sizeof(this->stack_dump));
/* Try to read stack. */
if (R_FAILED(svcReadDebugProcessMemory(this->stack_dump, debug_handle, this->stack_dump_base, sizeof(this->stack_dump)))) {
this->stack_dump_base = 0;
}
}
void ThreadInfo::DumpBinary(FILE *f_bin) {
/* Dump id and context. */
fwrite(&this->thread_id, sizeof(this->thread_id), 1, f_bin);
fwrite(&this->context, sizeof(this->context), 1, f_bin);
/* Dump TLS info and name. */
fwrite(&this->tls_address, sizeof(this->tls_address), 1, f_bin);
fwrite(&this->tls, sizeof(this->tls), 1, f_bin);
fwrite(&this->name, sizeof(this->name), 1, f_bin);
/* Dump stack extents and stack dump. */
fwrite(&this->stack_bottom, sizeof(this->stack_bottom), 1, f_bin);
fwrite(&this->stack_top, sizeof(this->stack_top), 1, f_bin);
fwrite(&this->stack_dump_base, sizeof(this->stack_dump_base), 1, f_bin);
fwrite(&this->stack_dump, sizeof(this->stack_dump), 1, f_bin);
/* Dump stack trace. */
{
const u64 sts = this->stack_trace_size;
fwrite(&sts, sizeof(sts), 1, f_bin);
}
fwrite(this->stack_trace, sizeof(this->stack_trace[0]), this->stack_trace_size, f_bin);
}
void ThreadList::DumpBinary(FILE *f_bin, u64 crashed_thread_id) {
const u32 magic = DumpedThreadInfoMagic;
const u32 count = this->thread_count;
fwrite(&magic, sizeof(magic), 1, f_bin);
fwrite(&count, sizeof(count), 1, f_bin);
fwrite(&crashed_thread_id, sizeof(crashed_thread_id), 1, f_bin);
for (size_t i = 0; i < this->thread_count; i++) {
this->threads[i].DumpBinary(f_bin);
}
}
void ThreadList::ReadFromProcess(Handle debug_handle, std::map<u64, u64> &tls_map, bool is_64_bit) {
this->thread_count = 0;
/* Get thread list. */
u32 num_threads;
u64 thread_ids[ThreadCountMax];
{
if (R_FAILED(svcGetThreadList(&num_threads, thread_ids, ThreadCountMax, debug_handle))) {
return;
}
num_threads = std::min(size_t(num_threads), ThreadCountMax);
}
/* Parse thread infos. */
for (size_t i = 0; i < num_threads; i++) {
if (this->threads[this->thread_count].ReadFromProcess(debug_handle, tls_map, thread_ids[i], is_64_bit)) {
this->thread_count++;
}
}
}
}

113
stratosphere/creport/source/creport_threads.hpp Normal file
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@ -0,0 +1,113 @@
/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include <map>
namespace sts::creport {
/* Forward declare ModuleList class. */
class ModuleList;
class ThreadInfo {
private:
static constexpr size_t StackTraceSizeMax = 0x20;
static constexpr size_t NameLengthMax = 0x20;
private:
ThreadContext context = {};
u64 thread_id = 0;
u64 stack_top = 0;
u64 stack_bottom = 0;
u64 stack_trace[StackTraceSizeMax] = {};
size_t stack_trace_size = 0;
u64 tls_address = 0;
u8 tls[0x100] = {};
u64 stack_dump_base = 0;
u8 stack_dump[0x100] = {};
char name[NameLengthMax + 1] = {};
ModuleList *module_list = nullptr;
public:
u64 GetGeneralPurposeRegister(size_t i) const {
return this->context.cpu_gprs[i].x;
}
u64 GetPC() const {
return this->context.pc.x;
}
u64 GetLR() const {
return this->context.lr;
}
u64 GetFP() const {
return this->context.fp;
}
u64 GetSP() const {
return this->context.sp;
}
u64 GetThreadId() const {
return this->thread_id;
}
size_t GetStackTraceSize() const {
return this->stack_trace_size;
}
u64 GetStackTrace(size_t i) const {
return this->stack_trace[i];
}
void SetModuleList(ModuleList *ml) {
this->module_list = ml;
}
bool ReadFromProcess(Handle debug_handle, std::map<u64, u64> &tls_map, u64 thread_id, bool is_64_bit);
void SaveToFile(FILE *f_report);
void DumpBinary(FILE *f_bin);
private:
void TryGetStackInfo(Handle debug_handle);
};
class ThreadList {
private:
static constexpr size_t ThreadCountMax = 0x60;
private:
size_t thread_count = 0;
ThreadInfo threads[ThreadCountMax];
public:
size_t GetThreadCount() const {
return this->thread_count;
}
const ThreadInfo &GetThreadInfo(size_t i) const {
return this->threads[i];
}
void SetModuleList(ModuleList *ml) {
for (size_t i = 0; i < this->thread_count; i++) {
this->threads[i].SetModuleList(ml);
}
}
void ReadFromProcess(Handle debug_handle, std::map<u64, u64> &tls_map, bool is_64_bit);
void SaveToFile(FILE *f_report);
void DumpBinary(FILE *f_bin, u64 crashed_thread_id);
};
}

72
stratosphere/creport/source/creport_utils.cpp Normal file
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@ -0,0 +1,72 @@
/*
* Copyright (c) 2018-2019 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 "creport_utils.hpp"
namespace sts::creport {
namespace {
/* Convenience definitions. */
constexpr size_t MaximumLineLength = 0x20;
}
void DumpMemoryHexToFile(FILE *f, const char *prefix, const void *data, size_t size) {
const u8 *data_u8 = reinterpret_cast<const u8 *>(data);
const int prefix_len = std::strlen(prefix);
size_t offset = 0;
size_t remaining = size;
bool first = true;
while (remaining) {
const size_t cur_size = std::max(MaximumLineLength, remaining);
/* Print the line prefix. */
if (first) {
fprintf(f, "%s", prefix);
first = false;
} else {
fprintf(f, "%*s", prefix_len, "");
}
/* Dump up to 0x20 of hex memory. */
for (size_t i = 0; i < cur_size; i++) {
fprintf(f, "%02X", data_u8[offset++]);
}
/* End line. */
fprintf(f, "\n");
remaining -= cur_size;
}
}
u64 ParseProcessIdArgument(const char *s) {
/* Official creport uses this custom parsing logic... */
u64 out_val = 0;
for (unsigned int i = 0; i < 20 && s[i]; i++) {
if ('0' <= s[i] && s[i] <= '9') {
out_val *= 10;
out_val += (s[i] - '0');
} else {
break;
}
}
return out_val;
}
}

27
stratosphere/creport/source/creport_utils.hpp Normal file
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@ -0,0 +1,27 @@
/*
* Copyright (c) 2018-2019 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/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
namespace sts::creport {
/* Utility functions. */
void DumpMemoryHexToFile(FILE *f, const char *prefix, const void *data, size_t size);
u64 ParseProcessIdArgument(const char *s);
}

2
stratosphere/libstratosphere

@ -1 +1 @@
Subproject commit 69dbb69e0b32aa7b977e144fe7a8355868abd04a
Subproject commit a8282205b5049a098f2a21e976b7261327d64b47

45
stratosphere/loader/source/ldr_process_creation.cpp
View file

@ -28,51 +28,6 @@
#include "ldr_process_creation.hpp"
#include "ldr_ro_manager.hpp"
/* TODO: Move into libstratosphere header? */
namespace sts::svc {
namespace {
enum CreateProcessFlag : u32 {
/* Is 64 bit? */
CreateProcessFlag_Is64Bit = (1 << 0),
/* What kind of address space? */
CreateProcessFlag_AddressSpaceShift = 1,
CreateProcessFlag_AddressSpaceMask = (7 << CreateProcessFlag_AddressSpaceShift),
CreateProcessFlag_AddressSpace32Bit = (ldr::Npdm::AddressSpaceType_32Bit << CreateProcessFlag_AddressSpaceShift),
CreateProcessFlag_AddressSpace64BitDeprecated = (ldr::Npdm::AddressSpaceType_64BitDeprecated << CreateProcessFlag_AddressSpaceShift),
CreateProcessFlag_AddressSpace32BitWithoutAlias = (ldr::Npdm::AddressSpaceType_32BitWithoutAlias << CreateProcessFlag_AddressSpaceShift),
CreateProcessFlag_AddressSpace64Bit = (ldr::Npdm::AddressSpaceType_64Bit << CreateProcessFlag_AddressSpaceShift),
/* Should JIT debug be done on crash? */
CreateProcessFlag_EnableDebug = (1 << 4),
/* Should ASLR be enabled for the process? */
CreateProcessFlag_EnableAslr = (1 << 5),
/* Is the process an application? */
CreateProcessFlag_IsApplication = (1 << 6),
/* 4.x deprecated: Should use secure memory? */
CreateProcessFlag_DeprecatedUseSecureMemory = (1 << 7),
/* 5.x+ Pool partition type. */
CreateProcessFlag_PoolPartitionShift = 7,
CreateProcessFlag_PoolPartitionMask = (0xF << CreateProcessFlag_PoolPartitionShift),
CreateProcessFlag_PoolPartitionApplication = (ldr::Acid::PoolPartition_Application << CreateProcessFlag_PoolPartitionShift),
CreateProcessFlag_PoolPartitionApplet = (ldr::Acid::PoolPartition_Applet << CreateProcessFlag_PoolPartitionShift),
CreateProcessFlag_PoolPartitionSystem = (ldr::Acid::PoolPartition_System << CreateProcessFlag_PoolPartitionShift),
CreateProcessFlag_PoolPartitionSystemNonSecure = (ldr::Acid::PoolPartition_SystemNonSecure << CreateProcessFlag_PoolPartitionShift),
/* 7.x+ Should memory allocation be optimized? This requires IsApplication. */
CreateProcessFlag_OptimizeMemoryAllocation = (1 << 11),
};
}
}
namespace sts::ldr {
namespace {

5
stratosphere/sm/source/impl/sm_service_manager.cpp
View file

@ -247,7 +247,10 @@ namespace sts::sm::impl {
bool IsMitmDisallowed(ncm::TitleId title_id) {
/* Mitm used on certain titles can prevent the boot process from completing. */
/* TODO: Is there a way to do this that's less hardcoded? Needs design thought. */
return title_id == ncm::TitleId::Loader || title_id == ncm::TitleId::Boot || title_id == ncm::TitleId::AtmosphereMitm;
return title_id == ncm::TitleId::Loader ||
title_id == ncm::TitleId::Boot ||
title_id == ncm::TitleId::AtmosphereMitm ||
title_id == ncm::TitleId::Creport;
}
Result AddFutureMitmDeclaration(ServiceName service) {