*
* Syscall Distribution
*/
-#define DEBUG 0
+#define DEBUG 1
#include <acess.h>
#include <threads.h>
#include <events.h>
// === IMPORTS ===
extern int Threads_Fork(void); // AcessNative only function
+extern int Threads_Spawn(int nFD, int FDs[], const void *info);
// === TYPES ===
typedef int (*tSyscallHandler)(Uint *Errno, const char *Format, void *Args, int *Sizes);
a3 = *(_t3*)Args;Args+=sizeof(_t3);\
a4 = *(_t4*)Args;Args+=sizeof(_t4);\
a5 = *(_t5*)Args;Args+=sizeof(_t5);\
- LOG("SYSCALL5 '%s' %p %p %p %p %p %p", Fmt, (intptr_t)a0,(intptr_t)a1,(intptr_t)a2,(intptr_t)a3,(intptr_t)a4,(intptr_t)a5);\
+ LOG("SYSCALL6 '%s' %p %p %p %p %p %p", Fmt, (intptr_t)a0,(intptr_t)a1,(intptr_t)a2,(intptr_t)a3,(intptr_t)a4,(intptr_t)a5);\
_call\
}
#define SYSCALL5(_name, _fmtstr, _t0, _t1, _t2, _t3, _t4, _call) int _name(Uint*Errno,const char*Fmt,void*Args,int*Sizes){\
}
// === CODE ===
-int Syscall_Null(Uint*Errno, const char *Format, void *Args, int *Sizes)
+int Syscall_Null(Uint *Errno, const char *Format, void *Args, int *Sizes)
{
return 0;
}
);
SYSCALL2(Syscall_Open, "si", const char *, int,
- return VFS_Open(a0, a1|VFS_OPENFLAG_USER);
+ int rv = VFS_Open(a0, a1|VFS_OPENFLAG_USER);
+ if(rv == -1) *Errno = errno;
+ return rv;
);
SYSCALL1(Syscall_Close, "i", int,
VFS_Close(a0);
Log_Warning("Syscalls", "Read - %i < %i", Sizes[2], a1);
return -1;
}
- return VFS_Read(a0, a1, a2);
+ size_t rv = VFS_Read(a0, a1, a2);
+ if(rv == -1) *Errno = errno;
+ return rv;
);
SYSCALL3(Syscall_Write, "iid", int, int, const void *,
- if( Sizes[2] < a1 )
+ if( Sizes[2] < a1 ) {
+ *Errno = EINVAL;
return -1;
- return VFS_Write(a0, a1, a2);
+ }
+ size_t rv = VFS_Write(a0, a1, a2);
+ if(rv == -1) *Errno = errno;
+ return rv;
);
SYSCALL3(Syscall_Seek, "iIi", int, int64_t, int,
return VFS_Seek(a0, a1, a2);
);
SYSCALL3(Syscall_FInfo, "idi", int, void *, int,
if( Sizes[1] < sizeof(tFInfo)+a2*sizeof(tVFS_ACL)) {
- LOG("offsetof(size) = %i", offsetof(tFInfo, size));
+ //LOG("offsetof(size) = %i", offsetof(tFInfo, size));
LOG("Bad size %i < %i", Sizes[1], sizeof(tFInfo)+a2*sizeof(tVFS_ACL));
*Errno = -EINVAL;
return -1;
return *a0;
);
+SYSCALL3(Syscall_AN_Spawn, "ddd", int *, int *, void *,
+ if(Sizes[0] < sizeof(int))
+ return -1;
+ *a0 = Threads_Spawn(Sizes[1] / sizeof(int), a1, a2);
+ return *a0;
+);
+
SYSCALL2(Syscall_SendMessage, "id", int, void *,
return Proc_SendMessage(a0, Sizes[1], a1);
);
Syscall_Sleep,
Syscall_AN_Fork,
- NULL,
+ Syscall_AN_Spawn,
Syscall_SendMessage,
Syscall_GetMessage,
int argListLen = 0;
int i, retVal;
tRequestHeader *ret;
- int retValueCount = 1;
- int retDataLen = sizeof(Uint64);
+ int retValueCount;
+ int retDataLen;
void *returnData[Request->NParams];
int argSizes[Request->NParams];
Uint ret_errno = 0;
+ // Clear errno (Acess verson) at the start of the request
+ errno = 0;
+
// Sanity check
if( Request->CallID >= ciNumSyscalls ) {
Log_Notice("Syscalls", "Unknown syscall number %i", Request->CallID);
Log_Notice("Syscalls", "Unimplemented syscall %i", Request->CallID);
return NULL;
}
-
+
+ // Init return count/size
+ retValueCount = 2;
+ retDataLen = sizeof(Uint64) + sizeof(Uint32);
+
// Get size of argument list
for( i = 0; i < Request->NParams; i ++ )
{
case ARG_TYPE_DATA:
formatString[i] = 'd';
argListLen += sizeof(void*);
+ // Prepare the return values
+ if( Request->Params[i].Flags & ARG_FLAG_RETURN )
+ {
+ retDataLen += Request->Params[i].Length;
+ retValueCount ++;
+ }
break;
case ARG_TYPE_STRING:
formatString[i] = 's';
argListLen += sizeof(char*);
break;
default:
+ Log_Error("Syscalls", "Unknown param type %i", Request->Params[i].Type);
return NULL; // ERROR!
}
}
// Data gets special handling, because only it can be returned to the user
// (ARG_TYPE_DATA is a pointer)
case ARG_TYPE_DATA:
- // Prepare the return values
- if( Request->Params[i].Flags & ARG_FLAG_RETURN )
- {
- retDataLen += Request->Params[i].Length;
- retValueCount ++;
- }
-
// Check for non-resident data
if( Request->Params[i].Length == 0 )
{
}
}
+ // --- Perform request
retVal = caSyscalls[Request->CallID](&ret_errno, formatString, argListData, argSizes);
}
+ // ---------- Return
+
+ if( ret_errno == 0 && errno != 0 ) {
+ ret_errno = errno;
+ LOG("errno = %i", errno);
+ }
+
// Allocate the return
size_t msglen = sizeof(tRequestHeader) + retValueCount * sizeof(tRequestValue) + retDataLen;
ret = malloc(msglen);
*(Uint64*)inData = retVal;
inData += sizeof(Uint64);
+ // Static Uint32 errno value
+ ret->Params[1].Type = ARG_TYPE_INT32;
+ ret->Params[1].Flags = 0;
+ ret->Params[1].Length = sizeof(Uint32);
+ *(Uint32*)inData = ret_errno;
+ inData += sizeof(Uint32);
+
+ LOG("Ret: %llx, errno=%i", retVal, ret_errno);
+
//Log_Debug("Syscalls", "Return 0x%llx", retVal);
- retValueCount = 1;
+ retValueCount = 2;
for( i = 0; i < Request->NParams; i ++ )
{
if( Request->Params[i].Type != ARG_TYPE_DATA ) continue;
retValueCount ++;
}
- *ReturnLength = sizeof(tRequestHeader)
- + retValueCount * sizeof(tRequestValue)
- + retDataLen;
+ *ReturnLength = ret->MessageLength;
return ret;
}