coldfire: Implement HAVE_INIT_ATTR magic

This reclaims ~6kB of ram.

Change-Id: Iafdc661b1cf4445669c08c79205043792b8d14c3
Reviewed-on: http://gerrit.rockbox.org/718
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/firmware/target/coldfire/crt0.S b/firmware/target/coldfire/crt0.S
index 881fcf908f..5e73131894 100644
--- a/firmware/target/coldfire/crt0.S
+++ b/firmware/target/coldfire/crt0.S
@@ -21,7 +21,7 @@
 #include "config.h"
 #include "cpu.h"
 
-    .section .init.text,"ax",@progbits
+    .section .startup,"ax",@progbits
 
     .global    start
 start:
@@ -290,6 +290,17 @@ start:
     /* .iram copy is done first since it is reclaimed for other
      * uninitialized sections */
 
+    /* copy .init section */
+    lea     _initcopy,%a2
+    lea     _initstart,%a3
+    lea     _initend,%a4
+    bra.b   .initstart
+.initloop:
+    move.l  (%a2)+,(%a3)+
+.initstart:
+    cmp.l   %a3,%a4
+    bhi.b   .initloop
+
     /* copy the .iram section */
     lea     _iramcopy,%a2
     lea     _iramstart,%a3