Changeset 624 for trunk/user

Timestamp:

Mar 12, 2019, 1:37:38 PM (5 years ago)

Author:

alain

Message:

Fix several bugs to use the instruction MMU in kernel mode
in replacement of the instruction address extension register,
and remove the "kentry" segment.

This version is running on the tsar_generic_iob" platform.

One interesting bug: the cp0_ebase defining the kernel entry point
(for interrupts, exceptions and syscalls) must be initialized
early in kernel_init(), because the VFS initialisation done by
kernel_ini() uses RPCs, and RPCs uses Inter-Processor-Interrup.

Location:

trunk/user

Files:

• ksh/ksh.c (modified) (2 diffs)
• sort/sort.c (modified) (2 diffs)

trunk/user/ksh/ksh.c

@@ -14 +14 @@
 //
 // The children processes are created by the <load> command, and are
-// attached to the same TXT terminal as the KSH process itself.
+// attached to the same TXT terminal as the parent KSH process.
 // A child process can be lauched in foreground or in background: 
-// . when the child process is running in foreground, the KSH process loses
+// . when the child process is launched in foreground, the KSH process loses
 //   the TXT terminal ownership, that is transfered to the child process.
-// . when the child process is running in background: the KSH process keeps
+// . when the child process is launched in background, the KSH process keeps
 //   the TXT terminal ownership.
 //
@@ -58 +58 @@
 #define DEBUG_INTER         0
 #define DEBUG_PARSE         0
-#define DEBUG_CMD_CAT       1
+#define DEBUG_CMD_CAT       0
 #define DEBUG_CMD_CP        0
 #define DEBUG_CMD_LOAD      0

trunk/user/sort/sort.c

@@ -305 +305 @@
     }
 
-    printf("\n\n[sort] main starts / %d threads / %d items / pid %x / cycle %d\n",
+    printf("\n[sort] main starts / %d threads / %d items / pid %x / cycle %d\n",
     total_threads, ARRAY_LENGTH, getpid(), (unsigned int)start_cycle );
 
@@ -467 +467 @@
 
 // register results to file
-fprintf( stream , "\n----- %s -----\n"
-                  " - sequencial : %d cycles\n"
-                  " - parallel   : %d cycles\n",
-         name, sequencial, parallel );
+int ret = fprintf( stream , "\n----- %s -----\n"
+                            " - sequencial : %d cycles\n"
+                            " - parallel   : %d cycles\n", name, sequencial, parallel );
+if( ret < 0 )
+{
+    printf("\n[sort error] cannot write to instrumentation file <%s>\n", name );
+    exit(0);
+}
 
 // close instrumentation file