X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fsyscalls.c;h=14950dd5db39e41392d3de8ed58d6bf35a065009;hb=41769c02317835472d7678d3531ecfc23df8e17a;hp=e6e828e3f6e79d30d1a7cf86f69864e4fa0fa5cc;hpb=dea6bcf35a3f52396724d74e47f71cb3afade37c;p=tpg%2Facess2.git

diff --git a/Kernel/syscalls.c b/Kernel/syscalls.c
index e6e828e3..14950dd5 100644
--- a/Kernel/syscalls.c
+++ b/Kernel/syscalls.c
@@ -40,11 +40,18 @@ void SyscallHandler(tSyscallRegs *Regs)
 {
 	Uint64	ret = 0;
 	Uint	err = -EOK;
+	 int	callNum = Regs->Num;
 	
-	ENTER("iThread iNum", Threads_GetTID(), Regs->Num);
-	if(Regs->Num < NUM_SYSCALLS)
-		LOG("Syscall %s", cSYSCALL_NAMES[Regs->Num]);
+	#if DEBUG < 2
+	if(callNum != SYS_READ && callNum != SYS_WRITE) {
+	#endif
+	ENTER("iThread iNum", Threads_GetTID(), callNum);
+	if(callNum < NUM_SYSCALLS)
+		LOG("Syscall %s", cSYSCALL_NAMES[callNum]);
 	LOG("Arg1: 0x%x, Arg2: 0x%x, Arg3: 0x%x, Arg4: 0x%x", Regs->Arg1, Regs->Arg2, Regs->Arg3, Regs->Arg4);
+	#if DEBUG < 2
+	}
+	#endif
 	
 	switch(Regs->Num)
 	{
@@ -120,14 +127,18 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// -- Check for messages
 	case SYS_GETMSG:
 		CHECK_NUM_NULLOK(Regs->Arg1, sizeof(Uint));
-		if( Regs->Arg2 && Regs->Arg2 != -1 && !MM_IsUser(Regs->Arg2) )
-		{
+		if( Regs->Arg2 && Regs->Arg2 != -1 && !MM_IsUser(Regs->Arg2) ) {
 			err = -EINVAL;	ret = -1;	break;
 		}
 		// *Source, *Data
 		ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
 		break;
 	
+	// -- Get the current timestamp
+	case SYS_GETTIME:
+		ret = now();
+		break;
+	
 	// -- Set the thread's name
 	case SYS_SETNAME:
 		CHECK_STR_NONULL(Regs->Arg1);
@@ -137,9 +148,10 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// ---
 	// Binary Control
 	// ---
+	// -- Replace the current process with another
 	case SYS_EXECVE:
 		CHECK_STR_NONULL(Regs->Arg1);
-		//Log(" Regs = {Arg2: %x, Arg3: %x}", Regs->Arg2, Regs->Arg3);
+		// Check the argument arrays
 		{
 			 int	i;
 			char	**tmp = (char**)Regs->Arg2;
@@ -164,8 +176,9 @@ void SyscallHandler(tSyscallRegs *Regs)
 		}
 		LEAVE('s', "Assuming 0");
 		// Path, **Argv, **Envp
-		ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
+		ret = Proc_Execve( (char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3 );
 		break;
+	// -- Load a binary into the current process
 	case SYS_LOADBIN:
 		if( !Syscall_ValidString(Regs->Arg1)
 		||  !Syscall_Valid(sizeof(Uint), Regs->Arg2) ) {
@@ -186,10 +199,12 @@ void SyscallHandler(tSyscallRegs *Regs)
 			ret = -1;
 			break;
 		}
+		LOG("VFS_Open(\"%s\", 0x%x)", (char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
 		ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
 		break;
 	
 	case SYS_CLOSE:
+		LOG("VFS_Close(%i)", Regs->Arg1);
 		VFS_Close( Regs->Arg1 );
 		break;
 	
@@ -233,6 +248,8 @@ void SyscallHandler(tSyscallRegs *Regs)
 	
 	// Read Directory
 	case SYS_READDIR:
+		// TODO: What if the filename is longer?
+		// Maybe force it to be a 256 byte buffer
 		if( !Syscall_Valid(8, Regs->Arg2) ) {
 			err = -EINVAL;
 			ret = -1;
@@ -322,11 +339,17 @@ void SyscallHandler(tSyscallRegs *Regs)
 	#endif
 	Regs->Error = err;
 	#if DEBUG
+	# if DEBUG < 2
+	if( callNum != SYS_READ && callNum != SYS_WRITE ) {
+	# endif
 	LOG("err = %i", err);
 	if(Regs->Num != SYS_EXECVE)
 		LEAVE('x', ret);
 	else
 		LOG("Actual %i", ret);
+	# if DEBUG < 2
+	}
+	# endif
 	#endif
 }