[LV-kern-commit] CVS: kernel-2.4/arch/vax/boot head.S,1.13,1.14

[Andy P. <at...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/boot
In directory usw-pr-cvs1:/tmp/cvs-serv1072

Modified Files:
	head.S 
Log Message:
Put the kernel command line in first part of head.S
Add a small tool called from makefile to set the command line 



Index: head.S
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/boot/head.S,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -r1.13 -r1.14
--- head.S	2001/09/14 20:30:21	1.13
+++ head.S	2001/09/16 15:19:27	1.14
@@ -19,19 +19,22 @@
 _stext:
 .globl start
 start:
-    nop			# relocation code, and stack setup required	
-#    movzbl $0x41,r2	# want to see something early while i debug scsi boot.
-#    jsb 0x20040058
-    nop 
-    nop 
-    nop
+    jmp  codestart	# Word displacement.
+.globl bootparam
+bootparam:    	
+    .fill 256,1,0 	# The boot parameter block. Presently just the 
+    			# command line. 
+codestart:
 # disable memory mapping    
     mtpr $0, $PR_MAPEN
     mtpr $31, $PR_IPL    
-# save r11, ap and scbb
+# save r11, ap and scbb and location of command line
     movl ap,  boot_ap
     movl r11, boot_r11
     mfpr $PR_SCBB, boot_scb
+    movab bootparam, r5
+    addl2 $PAGE_OFFSET,r5	# we will only access this when mapen=1
+    movl r5,kernel_cmd_line
 # put the sp somewhere safe, over our bootblock in fact
     moval start, r5
     subl2 $0x200, r5
@@ -61,6 +64,10 @@
    jsb crlf
    movab msg_cpu_type, r10
    jsb printstr
+   jsb crlf
+   moval kernel_cmd_line, r10
+   movl (r10),r10
+   jsb printint
 
     movl mv, r10
     calls $0, *MV_CPU_TYPE_STR(r10)
@@ -402,4 +409,10 @@
 .section .data.init
 .globl fake_pcb
 fake_pcb:    .fill 24,4,0x00000000
+
+# and a pointer to our initial command line 
+.globl kernel_cmd_line
+kernel_cmd_line:
+	     .int 0x00000000
+