From: John Hodge <tpg@mutabah.net>
Date: Thu, 27 May 2010 05:57:16 +0000 (+0800)
Subject: Bugfixing
X-Git-Tag: rel0.06~179
X-Git-Url: https://git.ucc.asn.au/?p=tpg%2Facess2.git;a=commitdiff_plain;h=587078c9b833b5fa1cae8b445475000706de8441

Bugfixing
---

diff --git a/Kernel/Makefile b/Kernel/Makefile
index 6bf4b9f2..6be6a135 100644
--- a/Kernel/Makefile
+++ b/Kernel/Makefile
@@ -15,7 +15,7 @@ KERNEL_VERSION = 0.5
 MAKEDEP		= $(CC) -M
 
 CPPFLAGS	+= -I./include -I./arch/$(ARCHDIR)/include
-CPPFLAGS    += -DARCH=$(ARCH) -DARCHDIR=$(ARCHDIR) -DKERNEL_VERSION=$(KERNEL_VERSION) -DBUILD_NUM=$(BUILD_NUM)
+CPPFLAGS	+= -DARCH=$(ARCH) -DARCHDIR=$(ARCHDIR) -DKERNEL_VERSION=$(KERNEL_VERSION) -DBUILD_NUM=$(BUILD_NUM)
 CFLAGS		+= -Wall -Werror -O3 -fno-stack-protector -fno-builtin
 ASFLAGS		+= -D ARCH=\"$(ARCH)\" -D ARCHDIR=\"$(ARCHDIR)\"
 LDFLAGS		+= -T arch/$(ARCHDIR)/link.ld
@@ -61,7 +61,7 @@ $(BIN): $(OBJ) $(MODS) arch/$(ARCHDIR)/link.ld Makefile
 	@echo --- LD -o $(BIN)
 	@$(LD) $(LDFLAGS) -o $(BIN) $(OBJ) $(MODS) -Map ../Map.$(ARCH).txt
 	@objdump $(BIN) -D -S > $(BIN).dsm
-	@wc -l $(SRCFILES) > LineCounts.$(ARCH).txt
+	@wc -l $(SRCFILES) include/*.h > LineCounts.$(ARCH).txt
 	@echo BUILD_NUM = `calc $(BUILD_NUM)+1` > Makefile.BuildNum
 
 %.ao.$(ARCH): %.asm Makefile
diff --git a/Kernel/Makefile.BuildNum b/Kernel/Makefile.BuildNum
index d780e7e4..41882050 100644
--- a/Kernel/Makefile.BuildNum
+++ b/Kernel/Makefile.BuildNum
@@ -1 +1 @@
-BUILD_NUM = 2164
+BUILD_NUM = 2183
diff --git a/Kernel/arch/x86/main.c b/Kernel/arch/x86/main.c
index 2dca5635..6baec034 100644
--- a/Kernel/arch/x86/main.c
+++ b/Kernel/arch/x86/main.c
@@ -125,7 +125,7 @@ void Arch_LoadBootModules(void)
 		
 		if( !Module_LoadMem( gaArch_BootModules[i].Base, gaArch_BootModules[i].Size, gaArch_BootModules[i].ArgString ) )
 		{
-			Log_Warning("Arch", "Unable to load module\n");
+			Log_Warning("Arch", "Unable to load module");
 		}
 	}
 	Log_Log("Arch", "Boot modules loaded");
diff --git a/Kernel/arch/x86/vm8086.c b/Kernel/arch/x86/vm8086.c
index 1816eacf..1f4f1f43 100644
--- a/Kernel/arch/x86/vm8086.c
+++ b/Kernel/arch/x86/vm8086.c
@@ -47,7 +47,7 @@ MODULE_DEFINE(0, 0x100, VM8086, VM8086_Install, NULL, NULL);
 tSpinlock	glVM8086_Process;
 tPID	gVM8086_WorkerPID;
 tTID	gVM8086_CallingThread;
-tVM8086	* volatile gpVM8086_State = (void*)-1;	// Set to -1 to avoid race conditions
+tVM8086	volatile * volatile gpVM8086_State = (void*)-1;	// Set to -1 to avoid race conditions
 
 // === FUNCTIONS ===
 int VM8086_Install(char **Arguments)
@@ -66,8 +66,8 @@ int VM8086_Install(char **Arguments)
 	}
 	if(pid == 0)
 	{
-		Uint	*stacksetup;	// Initialising Stack
-		Uint16	*rmstack;	// Real Mode Stack
+		Uint	* volatile stacksetup;	// Initialising Stack
+		Uint16	* volatile rmstack;	// Real Mode Stack
 		 int	i;
 		 
 		// Set Image Name
@@ -91,32 +91,32 @@ int VM8086_Install(char **Arguments)
 		*(Uint8*)(0x100003) = 0xCB;	// RET FAR
 		
 		rmstack = (Uint16*)(VM8086_STACK_SEG*16 + VM8086_STACK_OFS);
-		*rmstack-- = 0xFFFF;	//CS
-		*rmstack-- = 0x0010;	//IP
+		rmstack--;	*rmstack = 0xFFFF;	//CS
+		rmstack--;	*rmstack = 0x0010;	//IP
 		
 		// Setup Stack
 		stacksetup = (Uint*)0x101000;
-		*--stacksetup = VM8086_STACK_SEG;	// GS
-		*--stacksetup = VM8086_STACK_SEG;	// FS
-		*--stacksetup = VM8086_STACK_SEG;	// DS
-		*--stacksetup = VM8086_STACK_SEG;	// ES
-		*--stacksetup = VM8086_STACK_SEG;	// SS
-		*--stacksetup = VM8086_STACK_OFS-2;	// SP
-		*--stacksetup = 0x20202;	// FLAGS
-		*--stacksetup = 0xFFFF;	// CS
-		*--stacksetup = 0x10;	// IP
-		*--stacksetup = 0xAAAA;	// AX
-		*--stacksetup = 0xCCCC;	// CX
-		*--stacksetup = 0xDDDD;	// DX
-		*--stacksetup = 0xBBBB;	// BX
-		*--stacksetup = 0x5454;	// SP
-		*--stacksetup = 0xB4B4;	// BP
-		*--stacksetup = 0x5151;	// SI
-		*--stacksetup = 0xD1D1;	// DI
-		*--stacksetup = 0x20|3;	// DS - Kernel
-		*--stacksetup = 0x20|3;	// ES - Kernel
-		*--stacksetup = 0x20|3;	// FS
-		*--stacksetup = 0x20|3;	// GS
+		stacksetup--;	*stacksetup = VM8086_STACK_SEG;	// GS
+		stacksetup--;	*stacksetup = VM8086_STACK_SEG;	// FS
+		stacksetup--;	*stacksetup = VM8086_STACK_SEG;	// DS
+		stacksetup--;	*stacksetup = VM8086_STACK_SEG;	// ES
+		stacksetup--;	*stacksetup = VM8086_STACK_SEG;	// SS
+		stacksetup--;	*stacksetup = VM8086_STACK_OFS-2;	// SP
+		stacksetup--;	*stacksetup = 0x20202;	// FLAGS
+		stacksetup--;	*stacksetup = 0xFFFF;	// CS
+		stacksetup--;	*stacksetup = 0x10;	// IP
+		stacksetup--;	*stacksetup = 0xAAAA;	// AX
+		stacksetup--;	*stacksetup = 0xCCCC;	// CX
+		stacksetup--;	*stacksetup = 0xDDDD;	// DX
+		stacksetup--;	*stacksetup = 0xBBBB;	// BX
+		stacksetup--;	*stacksetup = 0x5454;	// SP
+		stacksetup--;	*stacksetup = 0xB4B4;	// BP
+		stacksetup--;	*stacksetup = 0x5151;	// SI
+		stacksetup--;	*stacksetup = 0xD1D1;	// DI
+		stacksetup--;	*stacksetup = 0x20|3;	// DS - Kernel
+		stacksetup--;	*stacksetup = 0x20|3;	// ES - Kernel
+		stacksetup--;	*stacksetup = 0x20|3;	// FS
+		stacksetup--;	*stacksetup = 0x20|3;	// GS
 		__asm__ __volatile__ (
 		"mov %%eax,%%esp;\n\t"	// Set stack pointer
 		"pop %%gs;\n\t"
@@ -168,12 +168,12 @@ void VM8086_GPF(tRegs *Regs)
 		}
 		
 		//Log_Log("VM8086", "We have a task (%p)", gpVM8086_State);
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_CS;
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_IP;
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->CS;
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->IP;
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->DS;
-		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->ES;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_CS;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_IP;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->CS;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->IP;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->DS;
+		Regs->esp -= 2;	*(Uint16*volatile)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->ES;
 		
 		// Set Registers
 		Regs->eip = 0x11;	Regs->cs = 0xFFFF;
@@ -212,8 +212,8 @@ void VM8086_GPF(tRegs *Regs)
 		id = *(Uint8*)( Regs->cs*16 +(Regs->eip&0xFFFF));
 		Regs->eip ++;
 		
-		Regs->esp -= 2;	*(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->cs;
-		Regs->esp -= 2;	*(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->eip;
+		Regs->esp -= 2;	*(Uint16*volatile)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->cs;
+		Regs->esp -= 2;	*(Uint16*volatile)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->eip;
 		
 		Regs->cs = *(Uint16*)(4*id + 2);
 		Regs->eip = *(Uint16*)(4*id);
diff --git a/Kernel/include/vfs.h b/Kernel/include/vfs.h
index ab0bd35b..057f7f4c 100644
--- a/Kernel/include/vfs.h
+++ b/Kernel/include/vfs.h
@@ -67,7 +67,7 @@
  */
 
 /**
- * \brief VFS Node
+ * \brief Represents a node (file or directory) in the VFS tree
  * 
  * This structure provides the VFS with the functions required to read/write
  * the file (or directory) that it represents.
@@ -99,8 +99,9 @@ typedef struct sVFS_Node
 	Uint32	Flags;	//!< File Flags
 	
 	/**
-	 * Pointer to cached data (FS Specific)
-	 * \note Inode_* will free when the node is uncached this if needed
+	 * \brief Pointer to cached data (FS Specific)
+	 * \note The Inode_* functions will free when the node is uncached
+	 *       this if needed
 	 */
 	void	*Data;
 	/**
@@ -160,7 +161,7 @@ typedef struct sVFS_Node
 	 int	(*IOCtl)(struct sVFS_Node *Node, int Id, void *Data);
 	
 	/**
-	 * }
+	 * \}
 	 */
 	
 	/**
@@ -190,7 +191,7 @@ typedef struct sVFS_Node
 	Uint64	(*Write)(struct sVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
 	
 	/**
-	 * }
+	 * \}
 	 */
 	
 	/**
@@ -247,7 +248,7 @@ typedef struct sVFS_Node
 	 int	(*Link)(struct sVFS_Node *Node, struct sVFS_Node *Child, char *NewName);
 	 
 	 /**
-	  * }
+	  * \}
 	  */
 } tVFS_Node;
 
diff --git a/Kernel/logging.c b/Kernel/logging.c
index 747094d2..54f16cad 100644
--- a/Kernel/logging.c
+++ b/Kernel/logging.c
@@ -65,6 +65,7 @@ EXPORT(Log_Debug);
 
 // === GLOBALS ===
 tSpinlock	glLog;
+tSpinlock	glLogOutput;
 tLogList	gLog;
 tLogList	gLog_Levels[NUM_LOG_LEVELS];
 
diff --git a/Kernel/modules.c b/Kernel/modules.c
index 41fb5143..4b095bc5 100644
--- a/Kernel/modules.c
+++ b/Kernel/modules.c
@@ -88,7 +88,8 @@ int Module_int_Initialise(tModule *Module, char *ArgString)
 				break;
 		}
 		if( mod ) {
-			Log_Warning("Module", "Circular dependency detected");
+			Log_Warning("Module", "Circular dependency detected (%s and %s)",
+				mod->Name, Module->Name);
 			LEAVE_RET('i', -1);
 		}
 		
@@ -99,7 +100,8 @@ int Module_int_Initialise(tModule *Module, char *ArgString)
 				break;
 		}
 		if( i == giNumBuiltinModules ) {
-			Log_Warning("Module", "Dependency '%s' for module '%s' failed");
+			Log_Warning("Module", "Dependency '%s' for module '%s' failed",
+				deps[j], Module->Name);
 			return -1;
 		}
 		
@@ -132,6 +134,9 @@ int Module_int_Initialise(tModule *Module, char *ArgString)
 	
 	if(args)	free(args);
 	
+	// Remove from loading list
+	gLoadingModules = gLoadingModules->Next;
+	
 	if( ret != MODULE_ERR_OK ) {
 		switch(ret)
 		{
@@ -153,9 +158,6 @@ int Module_int_Initialise(tModule *Module, char *ArgString)
 	}
 	LOG("ret = %i", ret);
 	
-	// Remove from loading list
-	gLoadingModules = gLoadingModules->Next;
-	
 	// Add to loaded list
 	LOCK( &glModuleSpinlock );
 	Module->Next = gLoadedModules;
diff --git a/Makefile.cfg b/Makefile.cfg
index b2957a0d..35080e9c 100644
--- a/Makefile.cfg
+++ b/Makefile.cfg
@@ -33,7 +33,7 @@ FILESYSTEMS :=
 DRIVERS := 
 MODULES := Storage/ATA Storage/FDD
 MODULES += Network/NE2000
-#MODULES += Display/VESA
+MODULES += Display/VESA
 MODULES += Display/BochsGA
 MODULES += Filesystems/Ext2
 MODULES += Filesystems/FAT