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CloverBootloader/rEFIt_UEFI/PlatformEFI/BootLog.cpp

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/*
* BootLog.c
*
*
* Created by Slice on 19.08.11.
* Edited by apianti 2012-09-08
* Initial idea from Kabyl
*/
#include <Platform.h> // Only use angled for Platform, else, xcode project won't compile
//#include <Library/MemLogLib.h>
#include "../Platform/DataHubCpu.h"
#include "../Platform/Settings.h"
#include "../Settings/Self.h"
#include "../Platform/guid.h"
#ifndef DEBUG_ALL
#define DEBUG_BOOTLOG 0
#else
#define DEBUG_BOOTLOG DEBUG_ALL
#endif
#if DEBUG_BOOTLOG == 0
#define DBG(...)
#else
#define DBG(...) DebugLog (DEBUG_BOOTLOG, __VA_ARGS__)
#endif
void EFIAPI MemLogCallback(IN INTN DebugMode, IN CHAR8 *LastMessage);
/** Prints Number of bytes in a row (hex and ascii). Row size is MaxNumber. */
void
PrintBytesRow(IN UINT8 *Bytes, IN UINTN Number, IN UINTN MaxNumber)
{
UINTN Index;
// print hex vals
for (Index = 0; Index < Number; Index++) {
DebugLog(1, "%02hhX ", Bytes[Index]);
}
// pad to MaxNumber if needed
for (; Index < MaxNumber; Index++) {
DebugLog(1, " ");
}
DebugLog(1, "| ");
// print ASCII
for (Index = 0; Index < Number; Index++) {
if (Bytes[Index] >= 0x20 && Bytes[Index] <= 0x7e) {
DebugLog(1, "%c", (CHAR16)Bytes[Index]);
} else {
DebugLog(1, "%c", L'.');
}
}
DebugLog(1, "\n");
}
/** Prints series of bytes. */
void
PrintBytes(IN void *Bytes, IN UINTN Number)
{
UINTN Index;
for (Index = 0; Index < Number; Index += 16) {
PrintBytesRow((UINT8*)Bytes + Index, ((Index + 16 < Number) ? 16 : (Number - Index)), 16);
}
}
static XStringW debugLogFileName;
static EFI_FILE_PROTOCOL* gLogFile = NULL;
// Do not keep a pointer to MemLogBuffer. Because a reallocation, it could become invalid.
int g_OpeningLogFile = 0;
// 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 = NULL;
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;
if ( !gLogFile ) return;
SuspendMemLogCallback smc;
/*Status =*/ gLogFile->Close(gLogFile);
gLogFile = NULL;
//DGB_nbCallback("closeDebugLog() -> %s\n", efiStrError(Status));
}
/*
* Use (or not) self.getCloverDir() to open log file.
* Not using self has the advantage of being able to generate a log even after uninitreflib().
* The only thing needed is gImageHandle. But because it's a parameter to main entry point, value can't be wrong.
* Drawback is that code to find current working directory has to be duplicated.
*/
//#define USE_SELF_INSTANCE
static UINTN GetDebugLogFile()
{
EFI_STATUS Status;
EFI_FILE_PROTOCOL *LogFile;
if ( gLogFile ) return 0;
#ifdef USE_SELF_INSTANCE
if ( !self.isInitialized() ) return 0;
#endif
g_OpeningLogFile = 1;
EFI_TIME Now;
Status = gRT->GetTime(&Now, NULL);
if ( EFI_ERROR(Status) ) {
DBG("GetTime return %s\n", efiStrError(Status));
}
#ifdef USE_SELF_INSTANCE
const EFI_FILE_PROTOCOL& CloverDir = self.getCloverDir();
const XString& efiFileName = self.getCloverEfiFileName();
#else
const EFI_FILE_PROTOCOL* CloverDirPtr = &self.getCloverDirOrNull();
if ( CloverDirPtr == NULL ) return 0;
const EFI_FILE_PROTOCOL& CloverDir = *CloverDirPtr;
#endif
if ( debugLogFileName.isEmpty() )
{
debugLogFileName = S8Printf("misc\\%04d-%02d-%02d_%02d-%02d_%ls.log", Now.Year, Now.Month, Now.Day, Now.Hour, Now.Minute, self.getCloverEfiFileNameOrNull().wc_str());
Status = CloverDir.Open(&CloverDir, &LogFile, debugLogFileName.wc_str(), EFI_FILE_MODE_READ, 0);
if ( !EFI_ERROR(Status) ) LogFile->Close(LogFile); // DO NOT modify Status here.
INTN i=1;
while ( Status != EFI_NOT_FOUND && (i < MAX_INTN) ) {
debugLogFileName = S8Printf("misc\\%04d-%02d-%02d_%02d-%02d_%ls(%lld).log", Now.Year, Now.Month, Now.Day, Now.Hour, Now.Minute, self.getCloverEfiFileNameOrNull().wc_str(), i);
Status = CloverDir.Open(&CloverDir, &LogFile, debugLogFileName.wc_str(), EFI_FILE_MODE_READ, 0);
if ( !EFI_ERROR(Status) ) LogFile->Close(LogFile); // DO NOT modify Status here.
}
if ( Status != EFI_NOT_FOUND ) {
DBG("Cannot find a free debug log file name\n"); // I can't imagine that to happen...
debugLogFileName.setEmpty(); // To allow to retry at the next call
g_OpeningLogFile = 0;
return 0;
}
Status = CloverDir.Open(&CloverDir, &LogFile, debugLogFileName.wc_str(), EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE, 0);
gLogFile = LogFile;
g_OpeningLogFile = 0;
return 0;
}else{
Status = CloverDir.Open(&CloverDir, &LogFile, debugLogFileName.wc_str(), EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE, 0);
g_OpeningLogFile = 0;
//// 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));
// }
// }
// }
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)
{
EFI_STATUS Status;
UINTN lastWrittenOffset = GetDebugLogFile();
if ( gLogFile == NULL ) return;
// Write out this message
const char* lastWrittenPointer = GetMemLogBuffer() + lastWrittenOffset;
UINTN TextLen = strlen(lastWrittenPointer);
UINTN 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();
// }
}
}
// Not all Firmware implements Flush. So we have to close every time to force flush.
closeDebugLog();
}
void EFIAPI MemLogCallback(IN INTN DebugMode, IN CHAR8 *LastMessage)
{
// Print message to console
if (DebugMode >= 2) {
printf("%s", LastMessage);
}
if ((DebugMode >= 1) && gSettings.Boot.DebugLog) {
SuspendMemLogCallback smc;
SaveMessageToDebugLogFile(LastMessage);
}
}
// Changed MsgLog(...) it now calls this function
// with DebugMode == 0. - apianti
// DebugMode==0 Prints to msg log, only output to log on SaveBooterLog
// DebugMode==1 Prints to msg log and DEBUG_LOG
// DebugMode==2 Prints to msg log, DEBUG_LOG and display console
void EFIAPI DebugLog(IN INTN DebugMode, IN CONST CHAR8 *FormatString, ...)
{
VA_LIST Marker;
//UINTN offset = 0;
// Make sure the buffer is intact for writing
if (FormatString == NULL || DebugMode < 0) {
return;
}
// Print message to log buffer
VA_START(Marker, FormatString);
MemLogfVA(true, DebugMode, FormatString, Marker);
VA_END(Marker);
}
void InitBooterLog(void)
{
SetMemLogCallback(MemLogCallback);
}
EFI_STATUS SetupBooterLog(XBool AllowGrownSize)
{
EFI_STATUS Status = EFI_SUCCESS;
CHAR8 *MemLogBuffer;
UINTN MemLogLen;
MemLogBuffer = GetMemLogBuffer();
MemLogLen = GetMemLogLen();
if (MemLogBuffer == NULL || MemLogLen == 0) {
return EFI_NOT_FOUND;
}
if (MemLogLen > MEM_LOG_INITIAL_SIZE && !AllowGrownSize) {
CHAR8 PrevChar = MemLogBuffer[MEM_LOG_INITIAL_SIZE-1];
MemLogBuffer[MEM_LOG_INITIAL_SIZE-1] = '\0';
Status = LogDataHub(gEfiMiscSubClassGuid, L"boot-log", MemLogBuffer, MEM_LOG_INITIAL_SIZE);
MemLogBuffer[MEM_LOG_INITIAL_SIZE-1] = PrevChar;
} else {
Status = LogDataHub(gEfiMiscSubClassGuid, L"boot-log", MemLogBuffer, (UINT32)MemLogLen);
}
return Status;
}
// Made msgbuf and msgCursor private to this source
// so we need a different way of saving the msg log - apianti
EFI_STATUS SaveBooterLog(const EFI_FILE* BaseDir OPTIONAL, IN CONST CHAR16 *FileName)
{
CHAR8 *MemLogBuffer;
UINTN MemLogLen;
MemLogBuffer = GetMemLogBuffer();
MemLogLen = GetMemLogLen();
if (MemLogBuffer == NULL || MemLogLen == 0) {
return EFI_NOT_FOUND;
}
return egSaveFile(BaseDir, FileName, (UINT8*)MemLogBuffer, MemLogLen);
}
void DbgHeader(CONST CHAR8 *str)
{
CHAR8 strLog[50];
INTN len;
UINTN end = snprintf(strLog, 50, "=== [ %s ] ", str);
len = 50 - end;
SetMem(&strLog[end], len , '=');
strLog[49] = '\0';
DebugLog (1, "%s\n", strLog);
}
/*
* Redirection of OpenCore log to Clover Log.
*/
/*
* This function is called from OpenCore when there is a DEBUG ((expression))
* Mapping from DEBUG to DebugLogForOC is made in OpenCoreFromClover.h
*/
void EFIAPI DebugLogForOC(IN INTN DebugLevel, IN CONST CHAR8 *FormatString, ...)
{
VA_LIST Marker;
if ( DebugLevel == 0 ) {
return;
}
if (FormatString == NULL ) return;
// Print message to log buffer
VA_START(Marker, FormatString);
MemLogVA(true, 1, FormatString, Marker);
VA_END(Marker);
}
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