Changeset 407 for trunk/hal/generic/hal_syscall.h

Timestamp:

Nov 7, 2017, 3:08:12 PM (6 years ago)

Author:

alain

Message:

First implementation of fork/exec.

File:

• trunk/hal/generic/hal_syscall.h (copied) (copied from trunk/hal/generic/hal_syscall.h) (4 diffs)

trunk/hal/generic/hal_syscall.h

@@ -1 +1 @@
 /*
- * hal_syscall.h - Architecture specific syscall handler API definition.
+ * hal_kernel_syscall.h - Architecture specific kernel_side syscall handler API definition.
  *
  * Author      Alain Greiner (2016,2017)
@@ -22 +22 @@
  */
 
-#ifndef _HAL_SYSCALL_H_
-#define _HAL_SYSCALL_H_
+#ifndef _HAL_KERNEL_SYSCALL_H_
+#define _HAL_KERNEL_SYSCALL_H_
 
 #include <hal_types.h>
 
 //////////////////////////////////////////////////////////////////////////////////////////
-//     ARchitecture specific syscall handler API
+//     Kernel-side syscall handler API
 //
-// The calling thread context has been saved in the cpu_uzone array,
-// stored in the user thread descriptor by the hal_kentry function.
-// The architecture specific handler must use this array to get the syscall
-// index and the arguments values.
+// This hal_do_syscall() function extract from the regs_tbl[] array the syscall index,
+// and the four syscall arguments. Then it calls the generic do_syscall() kernel function,
+// that call itself the relevant kernel function, depending on the syscall index.
 //
 // Any architecture specific implementation must implement this API.
@@ -44 +43 @@
 
 /*****************************************************************************************
- * This function implements the ALMOS-MKH syscall handler.
+ * This function implements the ALMOS-MKH kernel_side syscall handler.
  *****************************************************************************************
  * @ this     : pointer on the calling thread.
@@ -53 +52 @@
 
 
-#endif   // _HAL_SYSCALL_H_
+#endif   // _HAL_KERNEL_SYSCALL_H_