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creport: Try to take screenshot of application crashes on 9.x+

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This commit is contained in:
Michael Scire
2020-04-22 14:50:16 -07:00
parent 93e0c9194d
commit 6ac1ff6f24
9 changed files with 201 additions and 23 deletions
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1
stratosphere/creport/creport.json
View File

@@ -20,6 +20,7 @@
"service_access": [
"csrng",
"spl:",
"caps:sc",
"erpt:c",
"fatal:u",
"ns:dev",

86
stratosphere/creport/source/creport_crash_report.cpp
View File

@@ -81,6 +81,19 @@ namespace ams::creport {
}
void CrashReport::Initialize() {
/* Initialize the heap. */
this->heap_handle = lmem::CreateExpHeap(this->heap_storage, sizeof(this->heap_storage), lmem::CreateOption_None);
/* Allocate members. */
this->module_list = new (lmem::AllocateFromExpHeap(this->heap_handle, sizeof(ModuleList))) ModuleList;
this->thread_list = new (lmem::AllocateFromExpHeap(this->heap_handle, sizeof(ThreadList))) ThreadList;
this->dying_message = static_cast<u8 *>(lmem::AllocateFromExpHeap(this->heap_handle, DyingMessageSizeMax));
if (this->dying_message != nullptr) {
std::memset(this->dying_message, 0, DyingMessageSizeMax);
}
}
void CrashReport::BuildReport(os::ProcessId process_id, bool has_extra_info) {
this->has_extra_info = has_extra_info;
@@ -89,12 +102,12 @@ namespace ams::creport {
/* 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());
this->module_list->FindModulesFromThreadInfo(this->debug_handle, this->crashed_thread);
this->thread_list->ReadFromProcess(this->debug_handle, this->thread_tls_map, this->Is64Bit());
/* Associate module list to threads. */
this->crashed_thread.SetModuleList(&this->module_list);
this->thread_list.SetModuleList(&this->module_list);
this->crashed_thread.SetModuleList(this->module_list);
this->thread_list->SetModuleList(this->module_list);
/* Process dying message for applications. */
if (this->IsApplication()) {
@@ -103,8 +116,13 @@ namespace ams::creport {
/* 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));
for (size_t i = 0; i < this->thread_list->GetThreadCount(); i++) {
this->module_list->FindModulesFromThreadInfo(this->debug_handle, this->thread_list->GetThreadInfo(i));
}
/* Cache the module base address to send to fatal. */
if (this->module_list->GetModuleCount()) {
this->module_base_address = this->module_list->GetModuleStartAddress(0);
}
/* Nintendo's creport saves the report to erpt here, but we'll save to SD card later. */
@@ -133,8 +151,8 @@ namespace ams::creport {
out->aarch64_ctx.stack_trace[i] = this->crashed_thread.GetStackTrace(i);
}
if (this->module_list.GetModuleCount()) {
out->aarch64_ctx.SetBaseAddress(this->module_list.GetModuleStartAddress(0));
if (this->module_base_address != 0) {
out->aarch64_ctx.SetBaseAddress(this->module_base_address);
}
/* For ams fatal, which doesn't use afsr0, pass program_id instead. */
@@ -194,7 +212,7 @@ namespace ams::creport {
}
/* Cap userdata size. */
userdata_size = std::min(size_t(userdata_size), sizeof(this->dying_message));
userdata_size = std::min(size_t(userdata_size), DyingMessageSizeMax);
this->dying_message_address = userdata_address;
this->dying_message_size = userdata_size;
@@ -253,7 +271,7 @@ namespace ams::creport {
if (this->dying_message_address == 0 || this->dying_message_address & 0xFFF) {
return;
}
if (this->dying_message_size > sizeof(this->dying_message)) {
if (this->dying_message_size > DyingMessageSizeMax) {
return;
}
@@ -262,6 +280,11 @@ namespace ams::creport {
return;
}
/* Verify that we have a dying message buffer. */
if (this->dying_message == nullptr) {
return;
}
/* Read the dying message. */
svcReadDebugProcessMemory(this->dying_message, this->debug_handle, this->dying_message_address, this->dying_message_size);
}
@@ -294,7 +317,34 @@ namespace ams::creport {
{
ScopedFile file(file_path);
if (file.IsOpen()) {
this->thread_list.DumpBinary(file, this->crashed_thread.GetThreadId());
this->thread_list->DumpBinary(file, this->crashed_thread.GetThreadId());
}
}
/* Finalize our heap. */
this->module_list->~ModuleList();
this->thread_list->~ThreadList();
lmem::FreeToExpHeap(this->heap_handle, this->module_list);
lmem::FreeToExpHeap(this->heap_handle, this->thread_list);
if (this->dying_message != nullptr) {
lmem::FreeToExpHeap(this->heap_handle, this->dying_message);
}
this->module_list = nullptr;
this->thread_list = nullptr;
this->dying_message = nullptr;
/* Try to take a screenshot. */
if (hos::GetVersion() >= hos::Version_9_0_0 && this->IsApplication()) {
sm::ScopedServiceHolder<capsrv::InitializeScreenShotControl, capsrv::FinalizeScreenShotControl> capssc_holder;
if (capssc_holder) {
u64 jpeg_size;
if (R_SUCCEEDED(capsrv::CaptureJpegScreenshot(std::addressof(jpeg_size), this->heap_storage, sizeof(this->heap_storage), vi::LayerStack_ApplicationForDebug, TimeSpan::FromSeconds(10)))) {
std::snprintf(file_path, sizeof(file_path), "sdmc:/atmosphere/crash_reports/%011lu_%016lx.jpg", timestamp, this->process_info.program_id);
ScopedFile file(file_path);
if (file.IsOpen()) {
file.Write(this->heap_storage, jpeg_size);
}
}
}
}
}
@@ -314,13 +364,13 @@ namespace ams::creport {
file.WriteFormat(" Process ID: %016lx\n", this->process_info.process_id);
file.WriteFormat(" Process Flags: %08x\n", this->process_info.flags);
if (hos::GetVersion() >= hos::Version_5_0_0) {
file.WriteFormat(" User Exception Address: %s\n", this->module_list.GetFormattedAddressString(this->process_info.user_exception_context_address));
file.WriteFormat(" User Exception Address: %s\n", this->module_list->GetFormattedAddressString(this->process_info.user_exception_context_address));
}
/* Exception Info. */
file.WriteFormat("Exception Info:\n");
file.WriteFormat(" Type: %s\n", GetDebugExceptionString(this->exception_info.type));
file.WriteFormat(" Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.address));
file.WriteFormat(" Address: %s\n", this->module_list->GetFormattedAddressString(this->exception_info.address));
switch (this->exception_info.type) {
case svc::DebugException_UndefinedInstruction:
file.WriteFormat(" Opcode: %08x\n", this->exception_info.specific.undefined_instruction.insn);
@@ -328,7 +378,7 @@ namespace ams::creport {
case svc::DebugException_DataAbort:
case svc::DebugException_AlignmentFault:
if (this->exception_info.specific.raw != this->exception_info.address) {
file.WriteFormat(" Fault Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.specific.raw));
file.WriteFormat(" Fault Address: %s\n", this->module_list->GetFormattedAddressString(this->exception_info.specific.raw));
}
break;
case svc::DebugException_UndefinedSystemCall:
@@ -336,7 +386,7 @@ namespace ams::creport {
break;
case svc::DebugException_UserBreak:
file.WriteFormat(" Break Reason: 0x%x\n", this->exception_info.specific.user_break.break_reason);
file.WriteFormat(" Break Address: %s\n", this->module_list.GetFormattedAddressString(this->exception_info.specific.user_break.address));
file.WriteFormat(" Break Address: %s\n", this->module_list->GetFormattedAddressString(this->exception_info.specific.user_break.address));
file.WriteFormat(" Break Size: 0x%lx\n", this->exception_info.specific.user_break.size);
break;
default:
@@ -350,18 +400,18 @@ namespace ams::creport {
/* Dying Message. */
if (hos::GetVersion() >= hos::Version_5_0_0 && this->dying_message_size != 0) {
file.WriteFormat("Dying Message Info:\n");
file.WriteFormat(" Address: 0x%s\n", this->module_list.GetFormattedAddressString(this->dying_message_address));
file.WriteFormat(" Address: 0x%s\n", this->module_list->GetFormattedAddressString(this->dying_message_address));
file.WriteFormat(" Size: 0x%016lx\n", this->dying_message_size);
file.DumpMemory( " Dying Message: ", this->dying_message, this->dying_message_size);
}
/* Module Info. */
file.WriteFormat("Module Info:\n");
this->module_list.SaveToFile(file);
this->module_list->SaveToFile(file);
/* Thread Info. */
file.WriteFormat("Thread Report:\n");
this->thread_list.SaveToFile(file);
this->thread_list->SaveToFile(file);
}
}

19
stratosphere/creport/source/creport_crash_report.hpp
View File

@@ -22,28 +22,35 @@ namespace ams::creport {
class CrashReport {
private:
static constexpr size_t DyingMessageSizeMax = os::MemoryPageSize;
static constexpr size_t MemoryHeapSize = 512_KB;
static_assert(MemoryHeapSize >= DyingMessageSizeMax + sizeof(ModuleList) + sizeof(ThreadList) + os::MemoryPageSize);
private:
Handle debug_handle = INVALID_HANDLE;
bool has_extra_info = true;
Result result = ResultIncompleteReport();
/* Meta, used for building module/thread list. */
std::map<u64, u64> thread_tls_map;
/* Attach process info. */
svc::DebugInfoAttachProcess process_info = {};
u64 dying_message_address = 0;
u64 dying_message_size = 0;
u8 dying_message[DyingMessageSizeMax] = {};
u8 *dying_message = nullptr;
/* Exception info. */
svc::DebugInfoException exception_info = {};
u64 module_base_address = 0;
u64 crashed_thread_id = 0;
ThreadInfo crashed_thread;
/* Lists. */
ModuleList module_list;
ThreadList thread_list;
ModuleList *module_list = nullptr;
ThreadList *thread_list = nullptr;
/* Meta, used for building module/thread list. */
std::map<u64, u64> thread_tls_map;
/* Memory heap. */
lmem::HeapHandle heap_handle;
u8 heap_storage[MemoryHeapSize];
public:
Result GetResult() const {
return this->result;
@@ -80,6 +87,8 @@ namespace ams::creport {
}
}
void Initialize();
void BuildReport(os::ProcessId process_id, bool has_extra_info);
void GetFatalContext(::FatalCpuContext *out) const;
void SaveReport();

3
stratosphere/creport/source/creport_main.cpp
View File

@@ -102,6 +102,9 @@ int main(int argc, char **argv) {
/* Parse crashed PID. */
os::ProcessId crashed_pid = creport::ParseProcessIdArgument(argv[0]);
/* Initialize the crash report. */
g_crash_report.Initialize();
/* Try to debug the crashed process. */
g_crash_report.BuildReport(crashed_pid, argv[1][0] == '1');
if (!g_crash_report.IsComplete()) {