First attempt at GOT

buildscripts/Makefile

@@ -2,5 +2,5 @@ install:
 	cp base_rules $(DEVKITA64)/
 	cp base_tools $(DEVKITA64)/
 	cp switch_rules $(DEVKITA64)/
-	cp lib/switch.ld $(DEVKITA64)/lib/
+	cp lib/switch.ld $(DEVKITA64)/aarch64-none-elf/lib/
-	cp lib/switch.specs $(DEVKITA64)/lib/
+	cp lib/switch.specs $(DEVKITA64)/aarch64-none-elf/lib/

buildscripts/lib/switch.ld

@@ -63,10 +63,13 @@ SECTIONS
 		*(.data.*)
 		*(.gnu.linkonce.d*)
 		CONSTRUCTORS
-		*(.got)
 		. = ALIGN(4);
+                __got_start__ = .;
+                *(.got)
+	        __got_end__ = .;
 	} : data
 
+
 	.tdata ALIGN(4) :
 	{
 		__tdata_lma = .;

crt0/switch_crt0.s

@@ -1,40 +1,47 @@
 	.section ".crt0","ax"
 	.global _start, _sysexit, main
 _start:
-	b startup
+	bl startup
 
     .word 0x454d4f48
     .word 0x57455242
 
 startup:
-	mov x4, x30
+    // get aslr base
+    sub  x30, x30, #4
 
     // clear .bss
-	ldr x0, =__bss_start__
+	ldr  x0, =__bss_start__
-	ldr x1, =__bss_end__
+	ldr  x1, =__bss_end__
-	sub x1, x1, x0
+	sub  x1, x1, x0
-	bl  ClearMem
+    add  x1, x1, #7
+    bic  x1, x1, #7
+    mov  x2, #0
 
-	mov x0, #0 // argc
+bss_loop: 
-	mov x1, #0 // argv
+    str  x2, [x0], #8
+    subs x1, x1, #8
+    bne  bss_loop
 
-	ldr x3, =main
+    // relocate .got
-	blr x3
+	ldr  x0, =__got_start__
+	ldr  x1, =__got_end__
+	sub  x1, x1, x0
+    add  x1, x1, #3
+    bic  x1, x1, #3
+
+got_loop: 
+    ldr  x2, [x0]
+    add  x2, x2, x30
+    str  x2, [x0], #8
+    subs x1, x1, #8
+    bne  got_loop
+
+	mov  x0, #0 // argc
+	mov  x1, #0 // argv
+
+	ldr  x3, =main
+	blr  x3
 
 _sysexit:
-	svc 0x7
+	svc  0x7
-
-ClearMem:
-	mov  x2, #3     // Round down to nearest word boundary
-	add  x1, x1, x2 // Shouldn't be needed
-	bics x1, x1, x2	// Clear 2 LSB (and set Z)
-	beq ClearMem_end         // Quit if copy size is 0
-
-	mov	x2, #0
-ClrLoop:
-	str x2, [x0], #4
-	subs  x1, x1, #4
-	bne   ClrLoop
-
-ClearMem_end:
-	ret