2 * AcessOS Microkernel Version
13 extern int Proc_Clone(Uint *Err, Uint Flags);
14 extern int Threads_WaitTID(int TID, int *status);
15 extern Uint Proc_SendMessage(Uint *Err, Uint Dest, Uint Length, void *Data);
16 extern int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer);
17 extern int Proc_Execve(char *File, char **ArgV, char **EnvP);
18 extern Uint Binary_Load(char *file, Uint *entryPoint);
19 extern int VFS_FInfo(int FD, void *Dest, int MaxACLs);
20 extern int VFS_GetACL(int FD, void *Dest);
21 extern int Threads_SetName(char *NewName);
22 extern int Threads_GetPID();
23 extern int Threads_GetTID();
24 extern int Threads_GetUID();
25 extern int Threads_GetGID();
28 // TODO: Do sanity checking on arguments, ATM the user can really fuck with the kernel
29 void SyscallHandler(tSyscallRegs *Regs)
34 ENTER("iThread iNum", Threads_GetTID(), Regs->Num);
35 if(Regs->Num < NUM_SYSCALLS)
36 LOG("Syscall %s", cSYSCALL_NAMES[Regs->Num]);
37 LOG("Arg1: 0x%x, Arg2: 0x%x, Arg3: 0x%x", Regs->Arg1, Regs->Arg2, Regs->Arg3);
41 // -- Exit the current thread
42 case SYS_EXIT: Threads_Exit(); break;
44 // -- Put the current thread to sleep
45 case SYS_SLEEP: Threads_Sleep(); break;
47 // -- Yield current timeslice
48 case SYS_YIELD: Threads_Yield(); break;
50 // -- Clone the current thread
52 // Call clone system call
53 ret = Proc_Clone(&err, Regs->Arg1);
54 // Change user stack if requested
55 if(ret == 0 && Regs->Arg2)
56 Regs->StackPointer = Regs->Arg2;
65 // -- Wait for a thread
67 ret = Threads_WaitTID(Regs->Arg1, (void*)Regs->Arg2);
70 // -- Get the physical address of a page
72 ret = MM_GetPhysAddr(Regs->Arg1);
76 case SYS_MAP: MM_Map(Regs->Arg1, Regs->Arg2); break;
78 // -- Allocate an address
79 case SYS_ALLOCATE: ret = MM_Allocate(Regs->Arg1); break;
81 // -- Unmap an address
82 case SYS_UNMAP: MM_Deallocate(Regs->Arg1); break;
84 // -- Get Thread/Process IDs
85 case SYS_GETTID: ret = Threads_GetTID(); break;
86 case SYS_GETPID: ret = Threads_GetPID(); break;
88 // -- Get User/Group IDs
89 case SYS_GETUID: ret = Threads_GetUID(); break;
90 case SYS_GETGID: ret = Threads_GetGID(); break;
94 ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
96 // -- Check for messages
98 ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
101 // -- Set the thread's name
104 if(!Regs->Arg1) { ret = -1; err = -EINVAL; break; }
105 Threads_SetName( (void*)Regs->Arg1 );
112 ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
115 ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
119 // Virtual Filesystem
122 ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
126 VFS_Close( Regs->Arg1 );
131 VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
133 VFS_Write( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
139 VFS_Read( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
141 VFS_Read( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
146 ret = VFS_FInfo( Regs->Arg1, (void*)Regs->Arg2, Regs->Arg3 );
150 ret = VFS_GetACL( Regs->Arg1, (void*)Regs->Arg2 );
154 ret = VFS_ReadDir( Regs->Arg1, (void*)Regs->Arg2 );
159 Log((char*)Regs->Arg1,
160 Regs->Arg2, Regs->Arg3, Regs->Arg4, Regs->Arg5, Regs->Arg6);
163 // -- Default (Return Error)
165 Warning("SyscallHandler: Unknown System Call %i", Regs->Num);
166 if(Regs->Num < NUM_SYSCALLS)
167 Warning(" Syscall '%s'", cSYSCALL_NAMES[Regs->Num]);
173 Regs->Return = ret&0xFFFFFFFF;
174 Regs->RetHi = ret >> 32;
180 LOG("SyscallHandler: err = %i", err);