X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;ds=sidebyside;f=Kernel%2Farch%2Fx86%2Flib.c;h=0b802d1e10ddb997d948b3f71411428e2f57ce88;hb=51d1da69cd1c30ff20a2ff1d958fe0cd149c9cbf;hp=969332b09e810a2f919c42b12788d108dc4eb6ee;hpb=54bf151b1a05b74debdb5f3baec02c18406b74d1;p=tpg%2Facess2.git

diff --git a/Kernel/arch/x86/lib.c b/Kernel/arch/x86/lib.c
index 969332b0..0b802d1e 100644
--- a/Kernel/arch/x86/lib.c
+++ b/Kernel/arch/x86/lib.c
@@ -1,6 +1,8 @@
 /*
- * AcessOS Microkernel Version
- * lib.c
+ * Acess2
+ *
+ * arch/x86/lib.c
+ * - General arch-specific stuff
  */
 #include <acess.h>
 #include <threads_int.h>
@@ -15,6 +17,7 @@
 // === IMPRORTS ===
 #if TRACE_LOCKS
 extern struct sShortSpinlock	glDebug_Lock;
+extern struct sShortSpinlock	glThreadListLock;
 #endif
 extern int	GetCPUNum(void);
 
@@ -94,6 +97,14 @@ void SHORTLOCK(struct sShortSpinlock *Lock)
 	}
 	#endif
 	
+	#if TRACE_LOCKS
+	if( Lock != &glDebug_Lock && Lock != &glThreadListLock )
+	{
+		//Log_Log("LOCK", "%p locked by %p", Lock, __builtin_return_address(0));
+		Debug("%p obtaining %p (Called by %p)", __builtin_return_address(0), Lock, __builtin_return_address(1));
+	}
+	#endif
+	
 	// Wait for another CPU to release
 	while(v) {
 		// CMPXCHG:
@@ -124,10 +135,11 @@ void SHORTLOCK(struct sShortSpinlock *Lock)
 	#endif
 	
 	#if TRACE_LOCKS
-	if( Lock != &glDebug_Lock )
+	if( Lock != &glDebug_Lock && Lock != &glThreadListLock )
 	{
 		//Log_Log("LOCK", "%p locked by %p", Lock, __builtin_return_address(0));
-		LogF("Lock %p locked by %p\n", Lock, __builtin_return_address(0));
+		//Debug("Lock %p locked by %p\t%p", Lock, __builtin_return_address(0), __builtin_return_address(1));
+		Debug("got it");
 	}
 	#endif
 }
@@ -145,10 +157,10 @@ void SHORTREL(struct sShortSpinlock *Lock)
 	#endif
 	
 	#if TRACE_LOCKS
-	if( Lock != &glDebug_Lock )
+	if( Lock != &glDebug_Lock && Lock != &glThreadListLock )
 	{
 		//Log_Log("LOCK", "%p released by %p", Lock, __builtin_return_address(0));
-		LogF("Lock %p released by %p\n", Lock, __builtin_return_address(0));
+		Debug("Lock %p released by %p\t%p", Lock, __builtin_return_address(0), __builtin_return_address(1));
 	}
 	#endif
 	
@@ -178,7 +190,7 @@ int putDebugChar(char ch)
 		outb(GDB_SERIAL_PORT + 3, 0x03);    // 8 bits, no parity, one stop bit (8N1)
 		outb(GDB_SERIAL_PORT + 2, 0xC7);    // Enable FIFO with 14-byte threshold and clear it
 		outb(GDB_SERIAL_PORT + 4, 0x0B);    // IRQs enabled, RTS/DSR set
-		gbDebug_SerialSetup = 1;
+		gbGDB_SerialSetup = 1;
 	}
 	while( (inb(GDB_SERIAL_PORT + 5) & 0x20) == 0 );
 	outb(GDB_SERIAL_PORT, ch);
@@ -194,7 +206,7 @@ int getDebugChar(void)
 		outb(GDB_SERIAL_PORT + 3, 0x03);    // 8 bits, no parity, one stop bit
 		outb(GDB_SERIAL_PORT + 2, 0xC7);    // Enable FIFO with 14-byte threshold and clear it
 		outb(GDB_SERIAL_PORT + 4, 0x0B);    // IRQs enabled, RTS/DSR set
-		gbDebug_SerialSetup = 1;
+		gbGDB_SerialSetup = 1;
 	}
 	while( (inb(GDB_SERIAL_PORT + 5) & 1) == 0)	;
 	return inb(GDB_SERIAL_PORT);
@@ -312,9 +324,12 @@ int memcmp(const void *m1, const void *m2, size_t Num)
  */
 void *memcpy(void *Dest, const void *Src, size_t Num)
 {
-	if( ((Uint)Dest & 3) || ((Uint)Src & 3) )
+	if( ((Uint)Dest & 3) || ((Uint)Src & 3) ) {
 		__asm__ __volatile__ ("rep movsb" :: "D" (Dest), "S" (Src), "c" (Num));
+//		Debug("\nmemcpy:Num=0x%x by %p (UA)", Num, __builtin_return_address(0));
+	}
 	else {
+//		Debug("\nmemcpy:Num=0x%x by %p", Num, __builtin_return_address(0));
 		__asm__ __volatile__ (
 			"rep movsl;\n\t"
 			"mov %3, %%ecx;\n\t"
@@ -333,6 +348,25 @@ void *memcpyd(void *Dest, const void *Src, size_t Num)
 	return Dest;
 }
 
+Uint64 DivMod64U(Uint64 Num, Uint64 Div, Uint64 *Rem)
+{
+	Uint64	ret;
+	if( Div < 0x100000000ULL && Num < 0xFFFFFFFF * Div ) {
+		Uint32	rem, ret_32;
+		__asm__ __volatile__(
+			"div %4"
+			: "=a" (ret_32), "=d" (rem)
+			: "a" ( (Uint32)(Num & 0xFFFFFFFF) ), "d" ((Uint32)(Num >> 32)), "r" (Div)
+			);
+		if(Rem)	*Rem = rem;
+		return ret_32;
+	}
+
+	ret = __udivdi3(Num, Div);
+	if(Rem)	*Rem = __umoddi3(Num, Div);
+	return ret;
+}
+
 /**
  * \fn Uint64 __udivdi3(Uint64 Num, Uint64 Den)
  * \brief Divide two 64-bit integers
@@ -424,22 +458,6 @@ Uint64 __umoddi3(Uint64 Num, Uint64 Den)
 	return Num - __udivdi3(Num, Den) * Den;
 }
 
-Uint16 LittleEndian16(Uint16 Val)
-{
-	return Val;
-}
-Uint16 BigEndian16(Uint16 Val)
-{
-	return ((Val&0xFF)<<8) | ((Val>>8)&0xFF);
-}
-Uint32 LittleEndian32(Uint32 Val)
-{
-	return Val;
-}
-Uint32 BigEndian32(Uint32 Val)
-{
-	return ((Val&0xFF)<<24) | ((Val&0xFF00)<<8) | ((Val>>8)&0xFF00) | ((Val>>24)&0xFF);
-}
 
 // --- EXPORTS ---
 EXPORT(memcpy);	EXPORT(memset);
@@ -450,9 +468,6 @@ EXPORT(inb);	EXPORT(inw);	EXPORT(ind);
 EXPORT(outb);	EXPORT(outw);	EXPORT(outd);
 EXPORT(__udivdi3);	EXPORT(__umoddi3);
 
-EXPORT(LittleEndian16);	EXPORT(BigEndian16);
-EXPORT(LittleEndian32);	EXPORT(BigEndian32);
-
 EXPORT(SHORTLOCK);
 EXPORT(SHORTREL);
 EXPORT(IS_LOCKED);