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creport: address review commentary

This commit is contained in:
Michael Scire 2019-07-12 18:18:31 -07:00 committed by SciresM
parent 00e3d874e3
commit 4cc2b5c38a
5 changed files with 13 additions and 46 deletions

View file

@ -29,26 +29,6 @@ namespace sts::creport {
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;
}
bool TryGetCurrentTimestamp(u64 *out) {
/* Clear output. */
*out = 0;
@ -63,12 +43,12 @@ namespace sts::creport {
/* 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));
sm::ScopedServiceHolder<timeInitialize, timeExit> time_holder;
return time_holder && R_SUCCEEDED(timeGetCurrentTime(TimeType_LocalSystemClock, out));
}
}
void EnsureReportDirectories() {
void TryCreateReportDirectories() {
mkdir("sdmc:/atmosphere", S_IRWXU);
mkdir("sdmc:/atmosphere/crash_reports", S_IRWXU);
mkdir("sdmc:/atmosphere/crash_reports/dumps", S_IRWXU);
@ -131,13 +111,14 @@ namespace sts::creport {
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. */
/* Nintendo's creport saves the report to erpt here, but we'll save to SD card later. */
}
}
void CrashReport::GetFatalContext(FatalContext *out) const {
std::memset(out, 0, sizeof(*out));
/* TODO: Support generating 32-bit fatal contexts? */
out->is_aarch32 = false;
out->type = static_cast<u32>(this->exception_info.type);
@ -162,10 +143,6 @@ namespace sts::creport {
}
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))) {
@ -202,10 +179,6 @@ namespace sts::creport {
u64 userdata_address = 0;
u64 userdata_size = 0;
if (!IsAddressReadable(this->debug_handle, address, sizeof(userdata_address) + sizeof(userdata_size))) {
return;
}
/* Read userdata address. */
if (R_FAILED(svcReadDebugProcessMemory(&userdata_address, this->debug_handle, address, sizeof(userdata_address)))) {
return;
@ -251,9 +224,7 @@ namespace sts::creport {
this->result = ResultCreportUserBreak;
/* Try to parse out the user break result. */
if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
if (IsAddressReadable(this->debug_handle, d.info.exception.specific.user_break.address, sizeof(this->result))) {
svcReadDebugProcessMemory(&this->result, this->debug_handle, d.info.exception.specific.user_break.address, sizeof(this->result));
}
svcReadDebugProcessMemory(&this->result, this->debug_handle, d.info.exception.specific.user_break.address, sizeof(this->result));
}
break;
case svc::DebugExceptionType::UndefinedSystemCall:
@ -292,18 +263,13 @@ namespace sts::creport {
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);
}
void CrashReport::SaveReport() {
/* Ensure path exists. */
EnsureReportDirectories();
/* Try to ensure path exists. */
TryCreateReportDirectories();
/* Get a timestamp. */
u64 timestamp;

View file

@ -108,8 +108,8 @@ int main(int argc, char **argv) {
/* Try to terminate the process. */
{
auto ns_holder = sts::sm::ScopedServiceHolder<nsdevInitialize, nsdevExit>();
if (R_SUCCEEDED(ns_holder.GetResult())) {
sts::sm::ScopedServiceHolder<nsdevInitialize, nsdevExit> ns_holder;
if (ns_holder) {
nsdevTerminateProcess(crashed_pid);
}
}

View file

@ -136,7 +136,7 @@ namespace sts::creport {
return false;
}
/* In aarch32 mode svcGetDebugThreadParam does not set the LR, FP, and SP registers correctly. */
/* In aarch32 mode svcGetDebugThreadContext 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;

View file

@ -45,6 +45,7 @@ namespace sts::creport {
u64 GetGeneralPurposeRegister(size_t i) const {
return this->context.cpu_gprs[i].x;
}
u64 GetPC() const {
return this->context.pc.x;
}

@ -1 +1 @@
Subproject commit a8282205b5049a098f2a21e976b7261327d64b47
Subproject commit 5ae7b3ea9e06c7c7b40a8b1d6cbae329d015e2c4