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creport: dump tls/name on crash (closes #310)

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This commit is contained in:
Michael Scire
2019-05-25 13:32:34 -07:00
parent 5f5a8567ce
commit 766097d0b7
8 changed files with 195 additions and 141 deletions
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91
stratosphere/creport/source/creport_crash_report.cpp
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@@ -13,7 +13,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstdio>
#include <cstring>
#include <sys/stat.h>
@@ -28,21 +28,21 @@ void CrashReport::BuildReport(u64 pid, bool has_extra_info) {
if (OpenProcess(pid)) {
ProcessExceptions();
this->code_list.ReadCodeRegionsFromThreadInfo(this->debug_handle, &this->crashed_thread_info);
this->thread_list.ReadThreadsFromProcess(this->debug_handle, Is64Bit());
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);
if (IsApplication()) {
ProcessDyingMessage();
}
/* 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));
}
/* Real creport builds the report here. We do it later. */
Close();
}
}
@@ -50,29 +50,29 @@ void CrashReport::BuildReport(u64 pid, bool has_extra_info) {
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;
}
/* For ams fatal... */
ctx->aarch64_ctx.afsr0 = this->process_info.title_id;
return ctx;
}
@@ -80,7 +80,7 @@ void CrashReport::ProcessExceptions() {
if (!IsOpen()) {
return;
}
DebugEventInfo d;
while (R_SUCCEEDED(svcGetDebugEvent((u8 *)&d, this->debug_handle))) {
switch (d.type) {
@@ -91,12 +91,16 @@ void CrashReport::ProcessExceptions() {
HandleException(d);
break;
case DebugEventType::AttachThread:
HandleAttachThread(d);
case DebugEventType::ExitProcess:
case DebugEventType::ExitThread:
default:
break;
}
}
/* Parse crashing thread info. */
this->crashed_thread_info.ReadFromProcess(this->thread_tls_map, this->debug_handle, this->crashed_thread_id, Is64Bit());
}
void CrashReport::HandleAttachProcess(DebugEventInfo &d) {
@@ -106,31 +110,31 @@ void CrashReport::HandleAttachProcess(DebugEventInfo &d) {
u64 address = this->process_info.user_exception_context_address;
u64 userdata_address = 0;
u64 userdata_size = 0;
if (!IsAddressReadable(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;
}
/* Validate userdata address. */
if (userdata_address == 0 || userdata_address & 0xFFF) {
return;
}
/* Read userdata size. */
if (R_FAILED(svcReadDebugProcessMemory(&userdata_size, this->debug_handle, address + sizeof(userdata_address), sizeof(userdata_size)))) {
return;
}
/* Cap userdata size. */
if (userdata_size > sizeof(this->dying_message)) {
userdata_size = sizeof(this->dying_message);
}
/* Assign. */
this->dying_message_address = userdata_address;
this->dying_message_size = userdata_size;
@@ -180,8 +184,11 @@ void CrashReport::HandleException(DebugEventInfo &d) {
return;
}
this->exception_info = d.info.exception;
/* Parse crashing thread info. */
this->crashed_thread_info.ReadFromProcess(this->debug_handle, d.thread_id, Is64Bit());
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;
}
void CrashReport::ProcessDyingMessage() {
@@ -189,7 +196,7 @@ void CrashReport::ProcessDyingMessage() {
if ((GetRuntimeFirmwareVersion() < FirmwareVersion_500)) {
return;
}
/* Validate the message address/size. */
if (this->dying_message_address == 0 || this->dying_message_address & 0xFFF) {
return;
@@ -197,36 +204,36 @@ void CrashReport::ProcessDyingMessage() {
if (this->dying_message_size > sizeof(this->dying_message)) {
return;
}
/* Validate that the report isn't garbage. */
if (!IsOpen() || !WasSuccessful()) {
return;
}
if (!IsAddressReadable(this->dying_message_address, this->dying_message_size)) {
return;
}
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;
@@ -237,7 +244,7 @@ bool CrashReport::IsAddressReadable(u64 address, u64 size, MemoryInfo *o_mi) {
bool CrashReport::GetCurrentTime(u64 *out) {
*out = 0;
/* Verify that pcv isn't dead. */
{
bool has_time_service;
@@ -254,7 +261,7 @@ bool CrashReport::GetCurrentTime(u64 *out) {
return false;
}
}
/* Try to get the current time. */
bool success = true;
DoWithSmSession([&]() {
@@ -268,7 +275,7 @@ bool CrashReport::GetCurrentTime(u64 *out) {
}
void CrashReport::EnsureReportDirectories() {
char path[FS_MAX_PATH];
char path[FS_MAX_PATH];
strcpy(path, "sdmc:/atmosphere");
mkdir(path, S_IRWXU);
strcat(path, "/crash_reports");
@@ -280,16 +287,16 @@ void CrashReport::EnsureReportDirectories() {
void CrashReport::SaveReport() {
/* Save the report to the SD card. */
char report_path[FS_MAX_PATH];
/* Ensure path exists. */
EnsureReportDirectories();
/* 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");
@@ -298,7 +305,7 @@ void CrashReport::SaveReport() {
}
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");
@@ -308,9 +315,9 @@ void CrashReport::SaveReport() {
void CrashReport::SaveToFile(FILE *f_report) {
char buf[0x10] = {0};
fprintf(f_report, "Atmosphère Crash Report (v1.2):\n");
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");
@@ -321,7 +328,7 @@ void CrashReport::SaveToFile(FILE *f_report) {
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));
@@ -331,7 +338,7 @@ void CrashReport::SaveToFile(FILE *f_report) {
break;
case DebugExceptionType::DataAbort:
case DebugExceptionType::AlignmentFault:
if (this->exception_info.specific.raw != this->exception_info.address) {
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;
@@ -346,10 +353,10 @@ void CrashReport::SaveToFile(FILE *f_report) {
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) {
fprintf(f_report, "Dying Message Info:\n");