Changeset 418 for trunk/kernel/syscalls/sys_read.c

Timestamp:

Jan 8, 2018, 2:25:39 PM (6 years ago)

Author:

alain

Message:

Fix a bug in hal_kentry.S : the "uzone" pointer in the thread descriptor
must not be modified in case of interrupt.

File:

• trunk/kernel/syscalls/sys_read.c (modified) (4 diffs)

trunk/kernel/syscalls/sys_read.c

@@ -64 +64 @@
     reg_t        save_sr;     // required to enable IRQs during syscall
 
-#if CONFIG_SYSCALL_DEBUG
-uint32_t     tm_start;
-uint32_t     tm_end;
+#if CONFIG_READ_DEBUG
+uint64_t     tm_start;
+uint64_t     tm_end;
 tm_start = hal_get_cycles();
 #endif
 
 #if CONFIG_READ_DEBUG
-enter_sys_read = tm_start;
+enter_sys_read = (uint32_t)tm_start;
 #endif
 
@@ -98 +98 @@
 
     // enable IRQs
-    hal_enable_irq( &save_sr );
+    // hal_enable_irq( &save_sr );
 
     // get extended pointer on remote file descriptor
@@ -158 +158 @@
 
     // restore IRQs
-    hal_restore_irq( save_sr );
+    // hal_restore_irq( save_sr );
 
     hal_fence();
 
-#if CONFIG_SYSCALL_DEBUG
+#if CONFIG_READ_DEBUG
 tm_end = hal_get_cycles();
 printk("\n[DBG] %s : core[%x,%d] / thread %x in process %x / cycle %d\n"
@@ -171 +171 @@
 #endif
 
-#if CONFIG_READ_DEBUG
-exit_sys_read = tm_end;
+#if CONFIG_READ_DEBUG 
+exit_sys_read = (uint32_t)tm_end;
 
 printk("\n@@@@@@@@@@@@ timing to read character %c\n"