KernelLand - Misc debugging

diff --git a/KernelLand/Kernel/syscalls.c b/KernelLand/Kernel/syscalls.c
index 82389bb..1f2f798 100644 (file)
--- a/KernelLand/Kernel/syscalls.c
+++ b/KernelLand/Kernel/syscalls.c
@@ -12,14 +12,20 @@
 #include <threads.h>
 #include <events.h>
 
+#if 1
+# define MERR(f,v...) Log_Debug("Syscalls", "0x%x "f, callNum ,## v)
+#else
+# define MERR(v...) do{}while(0)
+#endif
+
 #define CHECK_NUM_NULLOK(v,size)       \
-       if((v)&&!Syscall_Valid((size),(v))){LOG("CHECK_NUM_NULLOK: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
+       if((v)&&!Syscall_Valid((size),(v))){MERR("CHECK_NUM_NULLOK: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_NULLOK(v)    \
-       if((v)&&!Syscall_ValidString((v))){LOG("CHECK_STR_NULLOK: %p FAIL",v);ret=-1;err=-EINVAL;break;}
+       if((v)&&!Syscall_ValidString((v))){MERR("CHECK_STR_NULLOK: %p FAIL",v);ret=-1;err=-EINVAL;break;}
 #define CHECK_NUM_NONULL(v,size)       \
-       if(!(v)||!Syscall_Valid((size),(v))){LOG("CHECK_NUM_NONULL: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
+       if(!(v)||!Syscall_Valid((size),(v))){MERR("CHECK_NUM_NONULL: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_NONULL(v)    \
-       if(!(v)||!Syscall_ValidString((v))){LOG("CHECK_STR_NONULL: %p FAIL",v);ret=-1;err=-EINVAL;break;}
+       if(!(v)||!Syscall_ValidString((v))){MERR("CHECK_STR_NONULL: %p FAIL",v);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_ARRAY(arr)   do {\
         int    i;\
        char    **tmp = (char**)arr; \
@@ -265,6 +271,7 @@ void SyscallHandler(tSyscallRegs *Regs)
        case SYS_IOCTL:
                // All sanity checking should be done by the driver
                if( Regs->Arg3 && !MM_IsUser(Regs->Arg3) ) {
+                       MERR("IOCtl Invalid arg %p", Regs->Arg3);
                        err = -EINVAL;  ret = -1;       break;
                }
                ret = VFS_IOCtl( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );

diff --git a/KernelLand/Modules/IPStack/udp.c b/KernelLand/Modules/IPStack/udp.c
index 8b0904c..1d80569 100644 (file)
--- a/KernelLand/Modules/IPStack/udp.c
+++ b/KernelLand/Modules/IPStack/udp.c
@@ -255,7 +255,11 @@ size_t UDP_Channel_Write(tVFS_Node *Node, off_t Offset, size_t Length, const voi
        const tUDPEndpoint      *ep;
        const void      *data;
         int    ofs;
-       if(chan->LocalPort == 0)        return 0;
+       
+       if(chan->LocalPort == 0) {
+               Log_Notice("UDP", "Write to channel %p with zero local port", chan);
+               return 0;
+       }
        
        ep = Buffer;    
        ofs = 2 + 2 + IPStack_GetAddressSize( ep->AddrType );