From 93a1c704c99a48803d118f66ac4fe08510fb4b89 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <kwojtus@protonmail.com>
Date: Thu, 26 Dec 2019 18:21:29 +0100
Subject: simplify linker script; rely on initially-zero memory to be included
 in binary image (no bss zeroing in assembly code)

---
 boot.S | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

(limited to 'boot.S')

diff --git a/boot.S b/boot.S
index 5e510f8..a792c94 100644
--- a/boot.S
+++ b/boot.S
@@ -1,7 +1,7 @@
 // armv7 mode
  
 // To keep this in the first portion of the binary.
-.section ".text.boot"
+.section ".boot"
 
 //.org 0x8000
 	
@@ -30,24 +30,6 @@ _start:
         ldr r5, =__start
         mov sp, r5
  
-        // Clear out bss.
-        ldr r4, =__bss_start
-        ldr r9, =__bss_end
-        mov r5, #0
-        mov r6, #0
-        mov r7, #0
-        mov r8, #0
-        b       2f
- 
-1:
-        // store multiple at r4.
-        stmia r4!, {r5-r8}
- 
-        // If we are still below bss_end, loop.
-2:
-        cmp r4, r9
-        blo 1b
- 
         // Call kernel_main
         ldr r3, =kernel_main
         bx r3
-- 
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