Changeset 626 for trunk/kernel/syscalls/sys_exec.c

Timestamp:

Apr 29, 2019, 7:25:09 PM (5 years ago)

Author:

alain

Message:

This version has been tested on the sort multithreaded application
for TSAR_IOB architectures ranging from 1 to 8 clusters.
It fixes three bigs bugs:
1) the dev_ioc device API has been modified: the dev_ioc_sync_read()
and dev_ioc_sync_write() function use now extended pointers on the
kernel buffer to access a mapper stored in any cluster.
2) the hal_uspace API has been modified: the hal_copy_to_uspace()
and hal_copy_from_uspace() functions use now a (cxy,ptr) couple
to identify the target buffer (equivalent to an extended pointer.
3) an implementation bug has been fixed in the assembly code contained
in the hal_copy_to_uspace() and hal_copy_from_uspace() functions.

File:

• trunk/kernel/syscalls/sys_exec.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_exec.c

@@ -96 +96 @@
 
     // copy the array of pointers to kernel buffer
-    hal_copy_from_uspace( k_pointers,
+    hal_copy_from_uspace( local_cxy,
+                          k_pointers,
                           u_pointers,
                           CONFIG_PPM_PAGE_SIZE );
@@ -115 +116 @@
 
         // copy the user string to kernel buffer
-        hal_copy_from_uspace( k_buf_ptr,
+        hal_copy_from_uspace( local_cxy,
+                              k_buf_ptr,
                               k_pointers[index],
                               length );