Changeset 626 for trunk/kernel/syscalls/sys_mmap.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_mmap.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_mmap.c

@@ -77 +77 @@
 
     // copy attributes from user space to kernel space
-    hal_copy_from_uspace( &k_attr , attr , sizeof(mmap_attr_t) );
+    hal_copy_from_uspace( local_cxy,
+                          &k_attr,
+                          attr,
+                          sizeof(mmap_attr_t) );
 
     // get addr, fdid, offset, and length attributes
@@ -305 +308 @@
 
     // copy vseg base address to user space
-    hal_copy_to_uspace( &attr->addr , &vseg->min , sizeof(intptr_t) );
-
+    hal_copy_to_uspace( local_cxy,
+                        &vseg->min,
+                        &attr->addr,
+                        sizeof(intptr_t) );
     hal_fence();