Kernel/debug - make Panic() emit red text

[tpg/acess2.git] / KernelLand / Kernel / debug.c

diff --git a/KernelLand/Kernel/debug.c b/KernelLand/Kernel/debug.c
index 355624d..b32036e 100644 (file)
--- a/KernelLand/Kernel/debug.c
+++ b/KernelLand/Kernel/debug.c
@@ -1,22 +1,20 @@
 /*
  * AcessOS Microkernel Version
  * debug.c
- * 
- * TODO: Move the Debug_putchar methods out to the arch/ tree
  */
 #include <acess.h>
 #include <stdarg.h>
+#include <debug_hooks.h>
 
 #define        DEBUG_MAX_LINE_LEN      256
-
-#define        LOCK_DEBUG_OUTPUT       1
-
-#define TRACE_TO_KTERM 0
+#define        LOCK_DEBUG_OUTPUT       1       // Avoid interleaving of output lines?
+#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);
@@ -34,12 +32,18 @@ volatile int        gbInPutChar = 0;
 #if LOCK_DEBUG_OUTPUT
 tShortSpinlock glDebug_Lock;
 #endif
+// - Disabled because it breaks shit
+ int   gbSendNetworkDebug = 0;
 
 // === CODE ===
 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 +51,12 @@ static void Debug_Putchar(char ch)
                        VFS_Write(giDebug_KTerm, 1, &ch);
                gbInPutChar = 0;
        }
-       else
-               KernelPanic_PutChar(ch);
+       
+       if( gbSendNetworkDebug )
+       {
+               char str[2] = {ch, 0};
+               IPStack_SendDebugText(str);
+       }
 }
 
 static void Debug_Puts(int UseKTerm, const char *Str)
@@ -64,9 +72,12 @@ static void Debug_Puts(int UseKTerm, const char *Str)
        }
        else
                for( len = 0; Str[len]; len ++ );
-       
+
+       if( gbSendNetworkDebug )
+               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;
@@ -83,12 +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 ;
 }
 
@@ -102,10 +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();
 }
 
@@ -118,6 +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
        
@@ -140,6 +160,7 @@ void Debug(const char *Fmt, ...)
        va_list args;
        
        #if LOCK_DEBUG_OUTPUT
+       if(CPU_HAS_LOCK(&glDebug_Lock)) return ;
        SHORTLOCK(&glDebug_Lock);
        #endif
 
@@ -153,32 +174,55 @@ void Debug(const char *Fmt, ...)
        SHORTREL(&glDebug_Lock);
        #endif
 }
-/**
- * \fn void Log(const char *Msg, ...)
- */
-void Log(const char *Fmt, ...)
+
+
+void LogFV(const char *Fmt, va_list args)
 {
-       va_list args;
+       #if LOCK_DEBUG_OUTPUT
+       if(CPU_HAS_LOCK(&glDebug_Lock)) return ;
+       SHORTLOCK(&glDebug_Lock);
+       #endif
+
+       Debug_Fmt(1, Fmt, args);
        
        #if LOCK_DEBUG_OUTPUT
+       SHORTREL(&glDebug_Lock);
+       #endif
+}
+
+void LogV(const char *Fmt, va_list args)
+{
+       #if LOCK_DEBUG_OUTPUT
+       if(CPU_HAS_LOCK(&glDebug_Lock)) return ;
        SHORTLOCK(&glDebug_Lock);
        #endif
 
        Debug_Puts(1, "Log: ");
-       va_start(args, Fmt);
        Debug_Fmt(1, Fmt, args);
-       va_end(args);
        Debug_Puts(1, "\r\n");
        
        #if LOCK_DEBUG_OUTPUT
        SHORTREL(&glDebug_Lock);
        #endif
 }
+
+/**
+ * \fn void Log(const char *Msg, ...)
+ */
+void Log(const char *Fmt, ...)
+{
+       va_list args;
+       va_start(args, Fmt);
+       LogV(Fmt, args);
+       va_end(args);
+}
+
 void Warning(const char *Fmt, ...)
 {
        va_list args;
        
        #if LOCK_DEBUG_OUTPUT
+       if(CPU_HAS_LOCK(&glDebug_Lock)) return ;
        SHORTLOCK(&glDebug_Lock);
        #endif
        
@@ -198,22 +242,25 @@ void Panic(const char *Fmt, ...)
        va_list args;
        
        #if LOCK_DEBUG_OUTPUT
-       SHORTLOCK(&glDebug_Lock);
+       if( !CPU_HAS_LOCK(&glDebug_Lock) )
+               SHORTLOCK(&glDebug_Lock);
        #endif
        // And never SHORTREL
        
        Debug_KernelPanic();
        
+       Debug_Puts(1, "\x1b[31m");
        Debug_Puts(1, "Panic: ");
        va_start(args, Fmt);
        Debug_Fmt(1, Fmt, args);
        va_end(args);
-       Debug_Putchar('\r');
-       Debug_Putchar('\n');
+       Debug_Puts(1, "\x1b[0m\r\n");
 
-       Threads_Dump();
+       Proc_PrintBacktrace();
+       //Threads_Dump();
+       //Heap_Dump();
 
-       for(;;) ;
+       HALT_CPU();
 }
 
 void Debug_SetKTerminal(const char *File)
@@ -238,6 +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
 
@@ -298,6 +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
 
@@ -326,6 +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
        
@@ -375,7 +425,7 @@ void Debug_Leave(const char *FuncName, char RetType, ...)
        #endif
 }
 
-void Debug_HexDump(const char *Header, const void *Data, Uint Length)
+void Debug_HexDump(const char *Header, const void *Data, size_t Length)
 {
        const Uint8     *cdat = Data;
        Uint    pos = 0;