Kernel/x86_64 - Debugging GUI errors (and a wild goose chase)

[tpg/acess2.git] / KernelLand / Kernel / syscalls.c

diff --git a/KernelLand/Kernel/syscalls.c b/KernelLand/Kernel/syscalls.c
index 5a1d596..82389bb 100644 (file)
--- a/KernelLand/Kernel/syscalls.c
+++ b/KernelLand/Kernel/syscalls.c
@@ -13,13 +13,13 @@
 #include <events.h>
 
 #define CHECK_NUM_NULLOK(v,size)       \
-       if((v)&&!Syscall_Valid((size),(v))){ret=-1;err=-EINVAL;break;}
+       if((v)&&!Syscall_Valid((size),(v))){LOG("CHECK_NUM_NULLOK: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_NULLOK(v)    \
-       if((v)&&!Syscall_ValidString((v))){ret=-1;err=-EINVAL;break;}
+       if((v)&&!Syscall_ValidString((v))){LOG("CHECK_STR_NULLOK: %p FAIL",v);ret=-1;err=-EINVAL;break;}
 #define CHECK_NUM_NONULL(v,size)       \
-       if(!(v)||!Syscall_Valid((size),(v))){ret=-1;err=-EINVAL;break;}
+       if(!(v)||!Syscall_Valid((size),(v))){LOG("CHECK_NUM_NONULL: %p(%x) FAIL",v,size);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_NONULL(v)    \
-       if(!(v)||!Syscall_ValidString((v))){ret=-1;err=-EINVAL;break;}
+       if(!(v)||!Syscall_ValidString((v))){LOG("CHECK_STR_NONULL: %p FAIL",v);ret=-1;err=-EINVAL;break;}
 #define CHECK_STR_ARRAY(arr)   do {\
         int    i;\
        char    **tmp = (char**)arr; \
@@ -400,7 +400,10 @@ int Syscall_ValidString(const char *Addr)
  */
 int Syscall_Valid(int Size, const void *Addr)
 {
-       if(!MM_IsUser( (tVAddr)Addr ))  return 0;
+       if(!MM_IsUser( (tVAddr)Addr )) {
+               Log_Debug("Syscalls", "Syscall_Valid - %p not user", Addr);
+               return 0;
+       }
        
        return CheckMem( Addr, Size );
 }