If the value of r0 upon entering the kernel is zero, interpret this as the

address of the end of the symbol table.  This will make it possible to get
rid of the code in the bootloader that patches up the kernel with the updated
esym value.

ok tom@, patrick@

2 files changed, 5 insertions, 3 deletions

diff --git a/sys/arch/arm/arm/locore.S b/sys/arch/arm/arm/locore.S
index a1532f63d6d..a142476f2ed 100644
--- a/sys/arch/arm/arm/locore.S
+++ b/sys/arch/arm/arm/locore.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: locore.S,v 1.11 2016/09/21 11:33:05 kettenis Exp $	*/
+/*	$OpenBSD: locore.S,v 1.12 2016/09/24 13:43:25 kettenis Exp $	*/
 /*	$NetBSD: locore.S,v 1.14 2003/04/20 16:21:40 thorpej Exp $	*/
 
 /*
@@ -56,6 +56,7 @@ ENTRY_NP(kernel_text)
 ASENTRY_NP(start)
 	mov	r5, r1
 	mov	r6, r2
+	mov	r7, r3
 	adr	r1, .Lstart
 	ldmia	r1, {r1, r2, r8, sp}	/* Set initial stack and */
 
@@ -74,6 +75,7 @@ ASENTRY_NP(start)
 	mov	fp, #0x00000000		/* trace back starts here */
 	mov	r1, r5
 	mov	r2, r6
+	mov	r3, r7
 	bl	_C_LABEL(initarm)	/* Off we go */
 
 	/* init arm will return the new stack pointer. */
diff --git a/sys/arch/arm/include/machdep.h b/sys/arch/arm/include/machdep.h
index b7f035675ed..d5f06623e05 100644
--- a/sys/arch/arm/include/machdep.h
+++ b/sys/arch/arm/include/machdep.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.h,v 1.4 2011/10/19 20:18:31 drahn Exp $	*/
+/*	$OpenBSD: machdep.h,v 1.5 2016/09/24 13:43:25 kettenis Exp $	*/
 /* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
 
 #ifndef _ARM_MACHDEP_H_
@@ -16,7 +16,7 @@ void dumpsys	(void);
  * note that we use void * as all the platforms have different ideas on what
  * the structure is
  */
-u_int initarm (void *, void *, void *);
+u_int initarm (void *, void *, void *, paddr_t);
 
 /* from arm/arm/intr.c */
 void dosoftints (void);