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Improve GetDebugLogFile() and SaveMessageToDebugLogFile().

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This commit is contained in:
jief666 2020-10-19 15:04:03 +03:00
parent 7ac3952a92
commit 2d124e41e3
2 changed files with 108 additions and 91 deletions
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28
Library/MemLogLibDefault/MemLogLib.c
View File

@ -294,17 +294,20 @@ MemLogVA (
Marker);
mMemLog->Cursor += DataWritten;
//
// Write to standard debug device also
//
// Jief : use SerialPortWrite instead of DebugPrint to avoid 256 chars message length limitation.
// Jief : do this before CallBack to preserve order of messages sent from inside callback.
SerialPortWrite((UINT8*)LastMessage, mMemLog->Cursor - LastMessage);
// DebugPrint(DEBUG_INFO, "%a", LastMessage);
//
// Pass this last message to callback if defined
//
if (mMemLog->Callback != NULL) {
mMemLog->Callback(DebugMode, LastMessage);
}
//
// Write to standard debug device also
//
DebugPrint(DEBUG_INFO, "%a", LastMessage);
}
/**
@ -532,13 +535,6 @@ MemLogfVA (
vprintf_with_callback_timestamp_emitcr(Format, Marker, transmitS8Printf, NULL, &printfNewline, Timing, 1);
size_t DataWritten = mMemLog->Cursor - mMemLog->Buffer - LastMessage;
//
// Pass this last message to callback if defined
//
if (mMemLog->Callback != NULL) {
mMemLog->Callback(DebugMode, mMemLog->Buffer + LastMessage);
}
//
// Check driver debug mask value and global mask
//
@ -549,8 +545,16 @@ MemLogfVA (
// Write to standard debug device also
//
// Jief : use SerialPortWrite instead of DebugPrint to avoid 256 chars message length limitation.
// Jief : do this before CallBack to preserve order of messages sent from inside callback.
SerialPortWrite((UINT8*)(mMemLog->Buffer + LastMessage), DataWritten);
// DebugPrint(DEBUG_INFO, "%a", LastMessage);
//
// Pass this last message to callback if defined
//
if (mMemLog->Callback != NULL) {
mMemLog->Callback(DebugMode, mMemLog->Buffer + LastMessage);
}
}
/**

171
rEFIt_UEFI/Platform/BootLog.cpp
View File

@ -74,8 +74,11 @@ PrintBytes(IN void *Bytes, IN UINTN Number)
}
static EFI_FILE_PROTOCOL* gLogFile = NULL;
STATIC BOOLEAN FirstTimeSave = TRUE;
// Do not keep a pointer to MemLogBuffer. Because a reallocation, it could become invalid.
// Avoid debug looping. TO be able to call DBG from inside function that DBG calls, we need to suspend callback to avoid a loop.
// Just instanciante this, the destructor will restore the callback.
class SuspendMemLogCallback
{
MEM_LOG_CALLBACK memlogCallBack_saved;
@ -83,10 +86,16 @@ public:
SuspendMemLogCallback() {
memlogCallBack_saved = GetMemLogCallback();
SetMemLogCallback(NULL);
};
};
~SuspendMemLogCallback() { SetMemLogCallback(memlogCallBack_saved); };
};
#if DEBUG_BOOTLOG == 0
#define DGB_nbCallback(...)
#else
#define DGB_nbCallback(...) do { SuspendMemLogCallback smc; DBG(__VA_ARGS__); } while (0)
#endif
void closeDebugLog()
{
EFI_STATUS Status;
@ -96,66 +105,61 @@ void closeDebugLog()
SuspendMemLogCallback smc;
Status = gLogFile->Close(gLogFile);
DBG("closeDebugLog() -> %s\n", efiStrError(Status));
gLogFile = NULL;
//DGB_nbCallback("closeDebugLog() -> %s\n", efiStrError(Status));
}
EFI_FILE_PROTOCOL* GetDebugLogFile()
static UINTN GetDebugLogFile()
{
EFI_STATUS Status;
EFI_LOADED_IMAGE *LoadedImage;
EFI_FILE_PROTOCOL *RootDir;
EFI_FILE_PROTOCOL *LogFile;
// Avoid debug looping. We don't want DBG from this function to call this function through the callback.
SuspendMemLogCallback smc;
if ( gLogFile ) return 0;
// get RootDir from device we are loaded from
Status = gBS->HandleProtocol(gImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &LoadedImage);
if (EFI_ERROR(Status)) {
DBG(" GetDebugLogFile() -> HandleProtocol : %s\n", efiStrError(Status));
return NULL;
}
RootDir = EfiLibOpenRoot(LoadedImage->DeviceHandle);
if (RootDir == NULL) {
DBG(" GetDebugLogFile() -> EfiLibOpenRoot : %s\n", efiStrError(Status));
return NULL;
}
// // get RootDir from device we are loaded from
// Status = gBS->HandleProtocol(gImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &LoadedImage);
// if (EFI_ERROR(Status)) {
// DGB_nbCallback(" GetDebugLogFile() -> HandleProtocol : %s\n", efiStrError(Status));
// }
// RootDir = EfiLibOpenRoot(LoadedImage->DeviceHandle);
// if (RootDir == NULL) {
// DGB_nbCallback(" GetDebugLogFile() -> EfiLibOpenRoot : %s\n", efiStrError(Status));
// }
//
// // Open log file from current root
// Status = RootDir->Open(RootDir, &LogFile, SWPrintf("%ls\\%ls", self.getCloverDirFullPath().wc_str(), DEBUG_LOG).wc_str(),
// EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE, 0);
if ( !self.isInitialized() ) return 0;
// Open log file from current root
Status = RootDir->Open(RootDir, &LogFile, SWPrintf("%ls\\%ls", self.getCloverDirFullPath().wc_str(), DEBUG_LOG).wc_str(),
EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE, 0);
Status = self.getCloverDir().Open(&self.getCloverDir(), &LogFile, DEBUG_LOG, EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE, 0);
if ( !EFI_ERROR (Status) && GlobalConfig.ScratchDebugLogAtStart )
{
// Here, we are not at the beginning. Some log was already sent.
// That's because the setting GlobalConfig.ScratchDebugLogAtStart is not set before the first log sent.
DBG(" GetDebugLogFile() -> deleting the log '%ls'\n", DEBUG_LOG);
// Here, we may not be at the first line sent to log.
// That's because the setting GlobalConfig.ScratchDebugLogAtStart is not set before the first log is sent.
DGB_nbCallback("GetDebugLogFile() -> deleting the log '%ls'\n", DEBUG_LOG);
EFI_STATUS StatusDelete;
StatusDelete = LogFile->Delete(LogFile);
if ( StatusDelete == EFI_SUCCESS) {
GlobalConfig.ScratchDebugLogAtStart = false;
FirstTimeSave = true;
LogFile = NULL;
Status = EFI_NOT_FOUND; // to make be reopened in the next lines.
}else{
DBG(" Cannot delete log file '%ls\\%ls' : %s\n", self.getCloverDirFullPath().wc_str(), DEBUG_LOG, efiStrError(StatusDelete));
RootDir->Close(RootDir);
return NULL;
DGB_nbCallback("Cannot delete log file '%ls\\%ls' : %s\n", self.getCloverDirFullPath().wc_str(), DEBUG_LOG, efiStrError(StatusDelete));
}
}else{
// DBG(" GetDebugLogFile() -> open log : %s\n", efiStrError(Status));
// DGB_nbCallback(" GetDebugLogFile() -> open log : %s\n", efiStrError(Status));
}
// If the log file is not found try to create it
if (Status == EFI_NOT_FOUND) {
Status = RootDir->Open(RootDir, &LogFile, SWPrintf("%ls\\%ls", self.getCloverDirFullPath().wc_str(), DEBUG_LOG).wc_str(),
EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE, 0);
// Status = RootDir->Open(RootDir, &LogFile, SWPrintf("%ls\\%ls", self.getCloverDirFullPath().wc_str(), DEBUG_LOG).wc_str(), EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE, 0);
Status = self.getCloverDir().Open(&self.getCloverDir(), &LogFile, DEBUG_LOG, EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE, 0);
}
RootDir->Close(RootDir);
RootDir = NULL;
// Jief : do we need that ?
// if (EFI_ERROR(Status)) {
// // try on first EFI partition
// Status = egFindESP(&RootDir);
@ -172,63 +176,72 @@ EFI_FILE_PROTOCOL* GetDebugLogFile()
// }
// }
if (EFI_ERROR(Status)) {
DBG(" GetDebugLogFile() -> !opened : %s\n", efiStrError(Status));
LogFile = NULL;
}
// Jief : Instead of EfiLibFileInfo, let's use SetPosition to get the size.
// if (!EFI_ERROR(Status)) {
// EFI_FILE_INFO *Info = EfiLibFileInfo(LogFile);
// if (Info) {
// Status = LogFile->SetPosition(LogFile, Info->FileSize);
// if ( EFI_ERROR(Status) ) {
// DBG("SaveMessageToDebugLogFile SetPosition error %s\n", efiStrError(Status));
// }
// }
// }
return LogFile;
if (!EFI_ERROR(Status)) {
Status = LogFile->SetPosition(LogFile, 0xFFFFFFFFFFFFFFFFULL);
if ( EFI_ERROR (Status) ) {
DGB_nbCallback("GetDebugLogFile() -> Cannot set log position to 0xFFFFFFFFFFFFFFFFULL : %s\n", efiStrError(Status));
LogFile->Close(LogFile);
}else{
UINTN size;
Status = LogFile->GetPosition(LogFile, &size);
if ( EFI_ERROR (Status) ) {
DGB_nbCallback("GetDebugLogFile() -> Cannot get log position : %s\n", efiStrError(Status));
LogFile->Close(LogFile);
}else{
//DGB_nbCallback("GetDebugLogFile() -> opened. log position = %lld (lwo %lld)\n", size, lastWrittenOffset);
gLogFile = LogFile;
return size;
}
}
}
return 0;
}
VOID SaveMessageToDebugLogFile(IN CHAR8 *LastMessage)
{
// STATIC UINTN Position = 0;
CHAR8 *MemLogBuffer;
UINTN MemLogLen;
CHAR8 *Text;
UINTN TextLen;
EFI_FILE_HANDLE LogFile;
EFI_STATUS Status;
// Avoid debug looping. We don't want DBG from this function to call this function through the callback.
SuspendMemLogCallback smc;
UINTN lastWrittenOffset = GetDebugLogFile();
MemLogBuffer = GetMemLogBuffer();
MemLogLen = GetMemLogLen();
Text = LastMessage;
TextLen = AsciiStrLen(LastMessage);
if ( gLogFile == NULL ) return;
LogFile = GetDebugLogFile();
// Write out this message
const char* lastWrittenPointer = GetMemLogBuffer() + lastWrittenOffset;
UINTN TextLen = strlen(lastWrittenPointer);
UINTN TextLen2 = TextLen;
// Write to the log file
if (LogFile != NULL) {
// Advance to the EOF so we append
EFI_FILE_INFO *Info = EfiLibFileInfo(LogFile);
if (Info) {
Status = LogFile->SetPosition(LogFile, Info->FileSize);
if ( EFI_ERROR(Status) ) {
DBG("SaveMessageToDebugLogFile SetPosition error %s\n", efiStrError(Status));
}
// If we haven't had root before this write out whole log
if (FirstTimeSave) {
Text = MemLogBuffer;
TextLen = MemLogLen;
FirstTimeSave = FALSE;
DBG("SaveMessageToDebugLogFile first time\n");
}
// Write out this message
UINTN TextLen2 = TextLen;
Status = LogFile->Write(LogFile, &TextLen2, Text);
if ( EFI_ERROR(Status) ) {
DBG("SaveMessageToDebugLogFile write error %s\n", efiStrError(Status));
}else{
if ( TextLen2 != TextLen ) {
DBG("SaveMessageToDebugLogFile TextLen2(%lld) != TextLen(%lld)\n", TextLen2, TextLen);
}
}
Status = gLogFile->Write(gLogFile, &TextLen2, lastWrittenPointer);
lastWrittenOffset += TextLen2;
if ( EFI_ERROR(Status) ) {
DGB_nbCallback("SaveMessageToDebugLogFile write error %s\n", efiStrError(Status));
closeDebugLog();
}else{
if ( TextLen2 != TextLen ) {
DGB_nbCallback("SaveMessageToDebugLogFile TextLen2(%lld) != TextLen(%lld)\n", TextLen2, TextLen);
closeDebugLog();
}else{
// Not all Firmware implements Flush. So we have to close everytime to force flush. Let's Close() instead of Flush()
// Is there a performance difference ? Is it worth to create a setting ? Probably not...
// Status = LogFile->Flush(LogFile);
// if ( EFI_ERROR(Status) ) {
// DGB_nbCallback("SaveMessageToDebugLogFile Cannot flush error %s\n", efiStrError(Status));
// closeDebugLog();
// }
}
LogFile->Close(LogFile);
}
// Not all Firmware implements Flush. So we have to close everytime to force flush.
closeDebugLog();
}
void EFIAPI MemLogCallback(IN INTN DebugMode, IN CHAR8 *LastMessage)