Changeset 626 for trunk/kernel/syscalls/sys_sem.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_sem.c (modified) (1 diff)

trunk/kernel/syscalls/sys_sem.c

@@ -139 +139 @@
  
             // return value to user
-            hal_copy_to_uspace( current_value , &current , sizeof(uint32_t) );
+            hal_copy_to_uspace( local_cxy,
+                                &current,
+                                current_value,
+                                sizeof(uint32_t) );
         }
         break;