Changeset 408 for trunk/kernel/kern/kernel_init.c

Timestamp:

Dec 5, 2017, 4:20:07 PM (6 years ago)

Author:

alain

Message:

Fix several bugs in the fork() syscall.

File:

• trunk/kernel/kern/kernel_init.c (modified) (3 diffs)

trunk/kernel/kern/kernel_init.c

@@ -122 +122 @@
 vfs_ctx_t            fs_context[FS_TYPES_NR]                 CONFIG_CACHE_LINE_ALIGNED;
 
-// These variables are used by the sched_yield function to save SR value
-__attribute__((section(".kdata")))
-uint32_t             switch_save_sr[CONFIG_MAX_LOCAL_CORES]  CONFIG_CACHE_LINE_ALIGNED;
-
-#if CONFIG_READ_DEBUG
+
+// TODO remove these debug variables used dans sys_read()
+
+#if CONFIG_READ_DEBUG    
 uint32_t   enter_sys_read;
 uint32_t   exit_sys_read;
@@ -342 +341 @@
 ///////////////////////////////////////////////////////////////////////////////////////////
 // This function allocates memory and initializes the chdev descriptors for the  
-// external (shared) peripherals other than the IOPIC, as specified by the boot_info,
-// including the dynamic linking with the driver for the specified implementation.
+// external (shared) peripherals other than the IOPIC, as specified by the boot_info.
+// This includes the dynamic linking with the driver for the specified implementation.
 // These chdev descriptors are distributed on all clusters, using a modulo on a global 
-// index, identically computed in all clusters: In each cluster, the local CP0 core 
-// computes the global index for all external chdevs, and creates only the chdevs that
-// must be placed in the local cluster. 
+// index, identically computed in all clusters.
+// This function is executed in all clusters by the CP0 core, that computes a global index
+// for all external chdevs. Each CP0 core creates only the chdevs that must be placed in 
+// the local cluster, because the global index matches the local index. 
 // The relevant entries in all copies of the devices directory are initialised.
 ///////////////////////////////////////////////////////////////////////////////////////////
@@ -830 +830 @@
 
     // all CP0s initialize the process_zero descriptor
-    if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
+    if( core_lid == 0 ) process_zero_init( &process_zero );
 
     // CP0 in cluster 0 initializes the PIC chdev,