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

Timestamp:

May 3, 2018, 5:51:22 PM (6 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_getcwd.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_getcwd.c

@@ -2 +2 @@
  * sys_getcwd.c - get process current work directory
  * 
- * Author    Alain Greiner (2016,2017)
+ * Author    Alain Greiner (2016,2017,2018)
  *
  * Copyright (c)  UPMC Sorbonne Universites
@@ -40 +40 @@
 {
         error_t    error;
-    paddr_t    paddr;
+    vseg_t   * vseg;
     char       kbuf[CONFIG_VFS_MAX_PATH_LENGTH];
   
@@ -49 +49 @@
         if( nbytes < CONFIG_VFS_MAX_PATH_LENGTH )
         {
-        printk("\n[ERROR] in %s : buffer too small\n", __FUNCTION__ );
-                this->errno = ERANGE;
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : buffer too small / thread %x / process %x\n",
+__FUNCTION__ , this->trdid , process->pid );
+#endif
+                this->errno = EINVAL;
         return -1;
         }
 
     // check buffer in user space
-    error = vmm_v2p_translate( false , buf , &paddr );
+    error = vmm_get_vseg( process, (intptr_t)buf , &vseg );
 
         if( error )
         {
-        printk("\n[ERROR] in %s : user buffer unmapped\n", __FUNCTION__ );
-                this->errno = EFAULT;
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : user buffer unmapped %x / thread %x / process %x\n",
+__FUNCTION__ , (intptr_t)buf , this->trdid , process->pid );
+#endif
+                this->errno = EINVAL;
         return -1;
         }