blob: 01daf3132c068c4a9c4c95567b573c8c9a30d763 (
plain)
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diff -ur linux.old/arch/mips/kernel/head.S linux.dev/arch/mips/kernel/head.S
--- linux.old/arch/mips/kernel/head.S 2006-12-06 17:30:27.000000000 +0100
+++ linux.dev/arch/mips/kernel/head.S 2006-12-06 18:34:43.000000000 +0100
@@ -129,15 +129,20 @@
#endif
.endm
-
j kernel_entry
nop
-
+ nop
+
/*
* Reserved space for exception handlers.
* Necessary for machines which link their kernels at KSEG0.
+ * Use as temporary storage for the kernel command line, so that it
+ * can be updated easily without having to relink the kernel.
*/
- .fill 0x400
+
+EXPORT(_image_cmdline)
+ .ascii "CMDLINE:"
+ .fill 0x3ec
EXPORT(stext) # used for profiling
EXPORT(_stext)
diff -ur linux.old/arch/mips/rb500/prom.c linux.dev/arch/mips/rb500/prom.c
--- linux.old/arch/mips/rb500/prom.c 2006-12-06 17:30:27.000000000 +0100
+++ linux.dev/arch/mips/rb500/prom.c 2006-12-06 17:41:40.000000000 +0100
@@ -128,6 +128,7 @@
/* FIXME: STUB */
}
+extern char _image_cmdline;
void __init prom_setup_cmdline(void){
char cmd_line[CL_SIZE];
char *cp;
@@ -163,6 +164,9 @@
strcpy(cp,prom_argv[i]);
cp+=strlen(prom_argv[i]);
}
+ *(cp++) = ' ';
+ strcpy(cp,(&_image_cmdline + 8));
+ cp += strlen(&_image_cmdline);
i=strlen(arcs_cmdline);
if (i>0){
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