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)
24 ENTER("iThread iNum", gCurrentThread->TID, Regs->Num);
25 if(Regs->Num < NUM_SYSCALLS)
26 LOG("Syscall %s", cSYSCALL_NAMES[Regs->Num]);
27 LOG("Arg1: 0x%x, Arg2: 0x%x, Arg3: 0x%x", Regs->Arg1, Regs->Arg2, Regs->Arg3);
31 // -- Exit the current thread
32 case SYS_EXIT: Proc_Exit(); break;
34 // -- Put the current thread to sleep
35 case SYS_SLEEP: Proc_Sleep(); Log(" SyscallHandler: %i is alive", gCurrentThread->TID); break;
37 // -- Yield current timeslice
38 case SYS_YIELD: Proc_Yield(); break;
40 // -- Clone the current thread
42 // Call clone system call
43 ret = Proc_Clone(&err, Regs->Arg1);
44 // Change user stack if requested
45 if(ret == 0 && Regs->Arg2)
46 Regs->StackPointer = Regs->Arg2;
56 case SYS_MAP: MM_Map(Regs->Arg1, Regs->Arg2); break;
57 // -- Allocate an address
58 case SYS_ALLOCATE: ret = MM_Allocate(Regs->Arg1); break;
59 // -- Unmap an address
60 case SYS_UNMAP: MM_Deallocate(Regs->Arg1); break;
62 // -- Get Thread/Process IDs
63 case SYS_GETTID: ret = gCurrentThread->TID; break;
64 case SYS_GETPID: ret = gCurrentThread->TGID; break;
65 // -- Get User/Group IDs
66 case SYS_GETUID: ret = gCurrentThread->UID; break;
67 case SYS_GETGID: ret = gCurrentThread->GID; break;
71 ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
73 // -- Check for messages
75 ret = Proc_GetMessage(&err, (Uint*)Regs->Arg1, (void*)Regs->Arg2);
78 // -- Set the thread's name
81 if(!Regs->Arg1) { ret = -1; err = -EINVAL; break; }
83 LOCK( &gCurrentThread->IsLocked );
85 if(gCurrentThread->ThreadName && (Uint)gCurrentThread->ThreadName > 0xE0800000)
86 free(gCurrentThread->ThreadName);
88 gCurrentThread->ThreadName = malloc( strlen( (char*)Regs->Arg1 ) + 1 );
89 strcpy(gCurrentThread->ThreadName, (char*)Regs->Arg1);
91 RELEASE( &gCurrentThread->IsLocked );
98 ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
101 ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
105 // Virtual Filesystem
108 ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
112 VFS_Close( Regs->Arg1 );
117 VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
119 VFS_Write( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
126 Log((char*)Regs->Arg1,
127 Regs->Arg2, Regs->Arg3, Regs->Arg4, Regs->Arg5, Regs->Arg6);
130 // -- Default (Return Error)
132 Warning("SyscallHandler: Unknown System Call %i", Regs->Num);
133 if(Regs->Num < NUM_SYSCALLS)
134 Warning(" Syscall %s", cSYSCALL_NAMES[Regs->Num]);
142 LOG("SyscallHandler: err = %i", err);