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 Threads_SetName(char *NewName);
21 extern int Threads_GetPID();
22 extern int Threads_GetTID();
23 extern int Threads_GetUID();
24 extern int Threads_GetGID();
27 void SyscallHandler(tSyscallRegs *Regs)
32 ENTER("iThread iNum", Threads_GetTID(), Regs->Num);
33 if(Regs->Num < NUM_SYSCALLS)
34 LOG("Syscall %s", cSYSCALL_NAMES[Regs->Num]);
35 LOG("Arg1: 0x%x, Arg2: 0x%x, Arg3: 0x%x", Regs->Arg1, Regs->Arg2, Regs->Arg3);
39 // -- Exit the current thread
40 case SYS_EXIT: Threads_Exit(); break;
42 // -- Put the current thread to sleep
43 case SYS_SLEEP: Threads_Sleep(); break;
45 // -- Yield current timeslice
46 case SYS_YIELD: Threads_Yield(); break;
48 // -- Clone the current thread
50 // Call clone system call
51 ret = Proc_Clone(&err, Regs->Arg1);
52 // Change user stack if requested
53 if(ret == 0 && Regs->Arg2)
54 Regs->StackPointer = Regs->Arg2;
63 // -- Wait for a thread
65 ret = Threads_WaitTID(Regs->Arg1, (void*)Regs->Arg2);
68 // -- Get the physical address of a page
70 ret = MM_GetPhysAddr(Regs->Arg1);
74 case SYS_MAP: MM_Map(Regs->Arg1, Regs->Arg2); break;
76 // -- Allocate an address
77 case SYS_ALLOCATE: ret = MM_Allocate(Regs->Arg1); break;
79 // -- Unmap an address
80 case SYS_UNMAP: MM_Deallocate(Regs->Arg1); break;
82 // -- Get Thread/Process IDs
83 case SYS_GETTID: ret = Threads_GetTID(); break;
84 case SYS_GETPID: ret = Threads_GetPID(); break;
86 // -- Get User/Group IDs
87 case SYS_GETUID: ret = Threads_GetUID(); break;
88 case SYS_GETGID: ret = Threads_GetGID(); break;
92 ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
94 // -- Check for messages
96 ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
99 // -- Set the thread's name
102 if(!Regs->Arg1) { ret = -1; err = -EINVAL; break; }
103 Threads_SetName( (void*)Regs->Arg1 );
110 ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
113 ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
117 // Virtual Filesystem
120 ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
124 VFS_Close( Regs->Arg1 );
129 VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
131 VFS_Write( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
137 VFS_Read( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
139 VFS_Read( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
144 ret = VFS_FInfo( Regs->Arg1, (void*)Regs->Arg2, Regs->Arg3 );
148 ret = VFS_ReadDir( Regs->Arg1, (void*)Regs->Arg2 );
153 Log((char*)Regs->Arg1,
154 Regs->Arg2, Regs->Arg3, Regs->Arg4, Regs->Arg5, Regs->Arg6);
157 // -- Default (Return Error)
159 Warning("SyscallHandler: Unknown System Call %i", Regs->Num);
160 if(Regs->Num < NUM_SYSCALLS)
161 Warning(" Syscall '%s'", cSYSCALL_NAMES[Regs->Num]);
167 Regs->Return = ret&0xFFFFFFFF;
168 Regs->RetHi = ret >> 32;
174 LOG("SyscallHandler: err = %i", err);