patch-2.3.23 linux/arch/arm/boot/compressed/head-victor.S

• Lines: 46
• Date: Wed Oct 20 16:29:08 1999
• Orig file: v2.3.22/linux/arch/arm/boot/compressed/head-victor.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.22/linux/arch/arm/boot/compressed/head-victor.S linux/arch/arm/boot/compressed/head-victor.S
@@ -0,0 +1,45 @@
+/*
+ * linux/arch/arm/boot/compressed/head-victor.S
+ *
+ * Copyright (C) 1998 Nicolas Pitre <nico@visuaide.com>
+ */
+
+#include <linux/linkage.h>
+
+		.text
+		.globl	_start
+_start:
+		@ just in case we still use an a.out loader...
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+
+		@ load different addresses
+		adr	r2, LC0
+		ldmia	r2, {r4, r5, r6, sp}
+
+		@ clear BSS
+		mov	r2, #0
+1:		str	r2, [r5], #4
+		cmp	r5, r6
+		blt	1b
+
+		@ uncompress the kernel
+		mov	r8, r0		@ save cmdline ptr
+		mov	r0, r4		@ where to put uncompressed data
+		add	r1, r6, #31
+		bic	r1, r1, #31	@ free memory space
+		add	r2, r1, #65536	@ end of free mem space
+		bl	SYMBOL_NAME(decompress_kernel)
+		mov	r0, r8		@ retrieve cmdline ptr
+		mov	pc, r4		@ call via EXEC entry
+
+LC0:		.word	_load_addr
+		.word	__bss_start
+		.word	SYMBOL_NAME(_end)
+		.word	SYMBOL_NAME(user_stack)+4096