X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Fdebug.c;h=d0de25abc389255c4ab9378bd57321d4d57b6a4f;hb=7b0611393a98399063aefaa87583b05fef13f6e3;hp=5e17c0edde1c8185f0edc752b5f0308942565cdc;hpb=a88ba0c5436470438a63241b126f926968ef558f;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/debug.c b/KernelLand/Kernel/debug.c
index 5e17c0ed..d0de25ab 100644
--- a/KernelLand/Kernel/debug.c
+++ b/KernelLand/Kernel/debug.c
@@ -4,16 +4,17 @@
  */
 #include <acess.h>
 #include <stdarg.h>
+#include <debug_hooks.h>
 
 #define	DEBUG_MAX_LINE_LEN	256
 #define	LOCK_DEBUG_OUTPUT	1	// Avoid interleaving of output lines?
-#define TRACE_TO_KTERM	0	// Send ENTER/DEBUG/LEAVE to debug?
+#define TRACE_TO_KTERM  	0	// Send ENTER/DEBUG/LEAVE to debug?
 
 // === IMPORTS ===
-extern void	Threads_Dump(void);
 extern void	KernelPanic_SetMode(void);
 extern void	KernelPanic_PutChar(char Ch);
 extern void	IPStack_SendDebugText(const char *Text);
+extern void	VT_SetTerminal(int TerminalID);
 
 // === PROTOTYPES ===
 static void	Debug_Putchar(char ch);
@@ -39,7 +40,10 @@ static void Debug_Putchar(char ch)
 {
 	Debug_PutCharDebug(ch);
 	
-	if( !gbDebug_IsKPanic )
+	if( gbDebug_IsKPanic )
+		KernelPanic_PutChar(ch);
+
+	if( gbDebug_IsKPanic < 2 )
 	{
 		if(gbInPutChar)	return ;
 		gbInPutChar = 1;
@@ -47,8 +51,6 @@ static void Debug_Putchar(char ch)
 			VFS_Write(giDebug_KTerm, 1, &ch);
 		gbInPutChar = 0;
 	}
-	else
-		KernelPanic_PutChar(ch);
 	
 	if( gbSendNetworkDebug )
 	{
@@ -75,7 +77,7 @@ static void Debug_Puts(int UseKTerm, const char *Str)
 		IPStack_SendDebugText(Str);
 
 	// Output to the kernel terminal
-	if( UseKTerm && !gbDebug_IsKPanic && giDebug_KTerm != -1)
+	if( UseKTerm && gbDebug_IsKPanic < 2 && giDebug_KTerm != -1)
 	{
 		if(gbInPutChar)	return ;
 		gbInPutChar = 1;
@@ -92,12 +94,13 @@ void Debug_DbgOnlyFmt(const char *format, va_list args)
 void Debug_Fmt(int bUseKTerm, const char *format, va_list args)
 {
 	char	buf[DEBUG_MAX_LINE_LEN];
-//	 int	len;
 	buf[DEBUG_MAX_LINE_LEN-1] = 0;
-	/*len = */vsnprintf(buf, DEBUG_MAX_LINE_LEN-1, format, args);
-	//if( len < DEBUG_MAX_LINE )
-		// do something
+	int len = vsnprintf(buf, DEBUG_MAX_LINE_LEN-1, format, args);
 	Debug_Puts(bUseKTerm, buf);
+	if( len > DEBUG_MAX_LINE_LEN-1 ) {
+		// do something
+		Debug_Puts(bUseKTerm, "[...]");
+	}
 	return ;
 }
 
@@ -111,10 +114,17 @@ void Debug_FmtS(int bUseKTerm, const char *format, ...)
 
 void Debug_KernelPanic(void)
 {
-	#if LOCK_DEBUG_OUTPUT
-	SHORTREL(&glDebug_Lock);
-	#endif
-	gbDebug_IsKPanic = 1;
+	// 5 nested panics? Fuck it
+	if( gbDebug_IsKPanic > 5 )
+		HALT_CPU();
+	gbDebug_IsKPanic ++;
+	if( gbDebug_IsKPanic == 1 )
+	{
+		#if LOCK_DEBUG_OUTPUT
+		SHORTREL(&glDebug_Lock);
+		#endif
+		VT_SetTerminal(7);
+	}
 	KernelPanic_SetMode();
 }
 
@@ -127,6 +137,7 @@ void LogF(const char *Fmt, ...)
 	va_list	args;
 
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 	
@@ -149,7 +160,8 @@ void Debug(const char *Fmt, ...)
 	va_list	args;
 	
 	#if LOCK_DEBUG_OUTPUT
-	if(!CPU_HAS_LOCK(&glDebug_Lock)) SHORTLOCK(&glDebug_Lock);
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
+	SHORTLOCK(&glDebug_Lock);
 	#endif
 
 	Debug_Puts(0, "Debug: ");
@@ -167,6 +179,7 @@ void Debug(const char *Fmt, ...)
 void LogFV(const char *Fmt, va_list args)
 {
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 
@@ -180,6 +193,7 @@ void LogFV(const char *Fmt, va_list args)
 void LogV(const char *Fmt, va_list args)
 {
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 
@@ -208,6 +222,7 @@ void Warning(const char *Fmt, ...)
 	va_list	args;
 	
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 	
@@ -241,10 +256,11 @@ void Panic(const char *Fmt, ...)
 	Debug_Putchar('\r');
 	Debug_Putchar('\n');
 
-	Threads_Dump();
-	Heap_Dump();
+	Proc_PrintBacktrace();
+	//Threads_Dump();
+	//Heap_Dump();
 
-	for(;;)	;
+	HALT_CPU();
 }
 
 void Debug_SetKTerminal(const char *File)
@@ -269,6 +285,7 @@ void Debug_Enter(const char *FuncName, const char *ArgTypes, ...)
 	tTID	tid = Threads_GetTID();
 	 
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 
@@ -329,6 +346,7 @@ void Debug_Log(const char *FuncName, const char *Fmt, ...)
 	tTID	tid = Threads_GetTID();
 
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif
 
@@ -357,6 +375,7 @@ void Debug_Leave(const char *FuncName, char RetType, ...)
 	tTID	tid = Threads_GetTID();
 
 	#if LOCK_DEBUG_OUTPUT
+	if(CPU_HAS_LOCK(&glDebug_Lock))	return ;
 	SHORTLOCK(&glDebug_Lock);
 	#endif