2 * AcessOS Microkernel Version
13 extern int Proc_Clone(Uint *Err, Uint Flags);
14 extern Uint Proc_SendMessage(Uint *Err, Uint Dest, Uint Length, void *Data);
15 extern int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer);
16 extern int Proc_Execve(char *File, char **ArgV, char **EnvP);
17 extern Uint Binary_Load(char *file, Uint *entryPoint);
20 void SyscallHandler(tSyscallRegs *Regs)
25 ENTER("iThread iNum", gCurrentThread->TID, Regs->Num);
26 if(Regs->Num < NUM_SYSCALLS)
27 LOG("Syscall %s", cSYSCALL_NAMES[Regs->Num]);
28 LOG("Arg1: 0x%x, Arg2: 0x%x, Arg3: 0x%x", Regs->Arg1, Regs->Arg2, Regs->Arg3);
32 // -- Exit the current thread
33 case SYS_EXIT: Proc_Exit(); break;
35 // -- Put the current thread to sleep
36 case SYS_SLEEP: Proc_Sleep(); Log(" SyscallHandler: %i is alive", gCurrentThread->TID); break;
38 // -- Yield current timeslice
39 case SYS_YIELD: Proc_Yield(); break;
41 // -- Clone the current thread
43 // Call clone system call
44 ret = Proc_Clone(&err, Regs->Arg1);
45 // Change user stack if requested
46 if(ret == 0 && Regs->Arg2)
47 Regs->StackPointer = Regs->Arg2;
57 ret = MM_GetPhysAddr(Regs->Arg1);
60 case SYS_MAP: MM_Map(Regs->Arg1, Regs->Arg2); break;
61 // -- Allocate an address
62 case SYS_ALLOCATE: ret = MM_Allocate(Regs->Arg1); break;
63 // -- Unmap an address
64 case SYS_UNMAP: MM_Deallocate(Regs->Arg1); break;
66 // -- Get Thread/Process IDs
67 case SYS_GETTID: ret = gCurrentThread->TID; break;
68 case SYS_GETPID: ret = gCurrentThread->TGID; break;
69 // -- Get User/Group IDs
70 case SYS_GETUID: ret = gCurrentThread->UID; break;
71 case SYS_GETGID: ret = gCurrentThread->GID; break;
75 ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
77 // -- Check for messages
79 ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
82 // -- Set the thread's name
85 if(!Regs->Arg1) { ret = -1; err = -EINVAL; break; }
87 LOCK( &gCurrentThread->IsLocked );
89 if(gCurrentThread->ThreadName && (Uint)gCurrentThread->ThreadName > 0xE0800000)
90 free(gCurrentThread->ThreadName);
92 gCurrentThread->ThreadName = malloc( strlen( (char*)Regs->Arg1 ) + 1 );
93 strcpy(gCurrentThread->ThreadName, (char*)Regs->Arg1);
95 RELEASE( &gCurrentThread->IsLocked );
102 ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
105 ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
109 // Virtual Filesystem
112 ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
116 VFS_Close( Regs->Arg1 );
121 VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
123 VFS_Write( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
129 VFS_Read( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
131 VFS_Read( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
138 Log((char*)Regs->Arg1,
139 Regs->Arg2, Regs->Arg3, Regs->Arg4, Regs->Arg5, Regs->Arg6);
142 // -- Default (Return Error)
144 Warning("SyscallHandler: Unknown System Call %i", Regs->Num);
145 if(Regs->Num < NUM_SYSCALLS)
146 Warning(" Syscall %s", cSYSCALL_NAMES[Regs->Num]);
152 Regs->Return = ret&0xFFFFFFFF;
153 Regs->RetHi = ret >> 32;
159 LOG("SyscallHandler: err = %i", err);