From fe468b476d567b6aa0695a030c408ccf46278c7d Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Fri, 2 Apr 2021 19:04:34 +0200
Subject: Mapped .text and .rodata readonly

---
 kernel/link.ld | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

(limited to 'kernel/link.ld')

diff --git a/kernel/link.ld b/kernel/link.ld
index fbe8a8c..c3b59b3 100644
--- a/kernel/link.ld
+++ b/kernel/link.ld
@@ -5,27 +5,31 @@ phys = 0x00009000;
 
 SECTIONS
 {
-	.text phys : AT(phys) {
-		kernel_start = .;
-		code = .;
+	. = phys;
+
+	kernel_ro_start = .;
+	.text BLOCK(4K) : ALIGN(4K)
+	{
 		*(.text)
+	}
+
+	.rodata BLOCK(4K) : ALIGN(4K)
+	{
 		*(.rodata)
-		. = ALIGN(4096);
 	}
+	kernel_ro_end = .;
+
 
-	.data : AT(phys + (data - code))
+	kernel_rw_start = .;
+	.data BLOCK(4K) : ALIGN(4K)
 	{
-		data = .;
 		*(.data)
-		. = ALIGN(4096);
 	}
 
-	.bss : AT(phys + (bss - code))
+	.bss BLOCK(4K) : ALIGN(4K)
 	{
-		bss = .;
+		*(COMMON)
 		*(.bss)
-		. = ALIGN(4096);
 	}
-
-	kernel_end = .;
+	kernel_rw_end = .;
 }
-- 
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