Changeset 440 for trunk/kernel/syscalls/sys_get_core.c

Timestamp:

May 3, 2018, 5:51:22 PM (5 years ago)

Author:

alain

Message:

1/ Fix a bug in the Multithreaded "sort" applicationr:
The pthread_create() arguments must be declared as global variables.
2/ The exit syscall can be called by any thread of a process..

File:

• trunk/kernel/syscalls/sys_get_core.c (modified) (1 diff)

trunk/kernel/syscalls/sys_get_core.c

@@ -37 +37 @@
                   uint32_t * lid )
 {
-    paddr_t   paddr;
+        error_t   error;
+    vseg_t  * vseg;
     uint32_t  k_cxy;
     uint32_t  k_lid;
-
-        error_t   error = 0;
 
     thread_t  * this    = CURRENT_THREAD;
     process_t * process = this->process;
 
-    // check buffers in user space
-    error |= vmm_v2p_translate( false , cxy , &paddr );
-    error |= vmm_v2p_translate( false , lid , &paddr );
+    // check cxy buffer in user space
+    error = vmm_get_vseg( process , (intptr_t)cxy , &vseg );
 
         if( error )
         {
-        printk("\n[ERROR] in %s : user buffer unmapped for thread %x in process %x\n",
-        __FUNCTION__ , this->trdid , process->pid );
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : cxy buffer unmapped %x / thread %x / process %x\n",
+__FUNCTION__ , (intptr_t)cxy , this->trdid , process->pid );
+vmm_display( process , false );
+#endif
+        this->errno = EFAULT;
+                return -1;
+        }
+
+    // check lid buffer in user space
+    error = vmm_get_vseg( process , (intptr_t)lid , &vseg );
+
+        if( error )
+        {
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : lid buffer unmapped %x / thread %x / process %x\n",
+__FUNCTION__ , (intptr_t)lid , this->trdid , process->pid );
+vmm_display( process , false );
+#endif
         this->errno = EFAULT;
                 return -1;