Changeset f7219b2 in rtems

Timestamp:

05/21/04 15:26:20 (19 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Children:

e2ce15fc

Parents:

922db65

Message:

2004-05-21 Till Strauman <strauman@…>

• PR 624/bsps startup/bspstart.c: When probing the memory, make sure not to corrupt the application. Only probe addresses beyond rtemsFreeMemStart.
• Let IBMPC_outch() convert LF -> CRLF to avoid printk scrambling the screen.

Location:

c/src/lib/libbsp/i386/pc386

Files:

• ChangeLog (modified) (1 diff)
• console/outch.c (modified) (1 diff)
• startup/bspstart.c (modified) (3 diffs)

c/src/lib/libbsp/i386/pc386/ChangeLog

@@ +1 @@
+2004-05-21  Till Strauman <strauman@slac.stanford.edu>
+
+        * PR 624/bsps
+        startup/bspstart.c: When probing the memory, make sure not to
+        corrupt the application. Only probe addresses beyond rtemsFreeMemStart.
+        * Let IBMPC_outch() convert LF -> CRLF to avoid printk scrambling
+        the screen.
+
 2003-10-02      Till Strauman <strauman@slac.stanford.edu>
 

c/src/lib/libbsp/i386/pc386/console/outch.c

@@ -271 +271 @@
 static int escaped = 0;
 
-  if ( ! (escaped = handleEscape(escaped, c)) )
+  if ( ! (escaped = handleEscape(escaped, c)) ) {
+    if ( '\n' == c )
+      videoPutChar('\r');
         videoPutChar(c);
+  }
 } /* _IBMPC_outch */
 

c/src/lib/libbsp/i386/pc386/startup/bspstart.c

@@ -83 +83 @@
 {
   rtems_unsigned32 topAddr, val;
-  int i;
+  int i, lowest;
   
   
   if (rtemsFreeMemStart & (CPU_ALIGNMENT - 1))  /* not aligned => align it */
     rtemsFreeMemStart = (rtemsFreeMemStart+CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+
+  /* find the lowest 1M boundary to probe */
+  lowest = ((rtemsFreeMemStart + (1<<20)) >> 20) + 1;
+  if ( lowest  < 2 )
+        lowest = 2;
+
 
   if(_heap_size == 0)
@@ -96 +102 @@
        * let us first write
        */
-      for(i=2048; i>=2; i--)
+      for(i=2048; i>=lowest; i--)
         {
           topAddr = i*1024*1024 - 4;
@@ -102 +108 @@
         }
 
-      for(i=2; i<=2048; i++)
+      for(i=lowest; i<=2048; i++)
         {
           topAddr = i*1024*1024 - 4;