Put entry point at start of binary on x86 platforms

Related to #881.

repos/base-nova/src/platform/roottask.ld

@@ -21,8 +21,8 @@ ENTRY(_start)
 
 PHDRS
 {
-  ro PT_LOAD;
-  rw PT_LOAD;
+	ro PT_LOAD;
+	rw PT_LOAD;
 }
 
 SECTIONS
@@ -31,6 +31,9 @@ SECTIONS
 		/* begin of program image (link address) */
 		_prog_img_beg = .;
 
+		/* put entry code at the start of the text segment / raw binary */
+		*(.text.crt0)
+
 		*(.init)
 		*(.text .text.* .gnu.linkonce.t.*)
 		*(.fini)

repos/base/src/platform/x86_32/crt0.s

@@ -17,7 +17,7 @@
  ** .text (program code) **
  **************************/
 
-.text
+.section ".text.crt0"
 
 	/* program entry-point */
 	.global _start

repos/base/src/platform/x86_64/crt0.s

@@ -17,7 +17,7 @@
  ** .text (program code) **
  **************************/
 
-.text
+.section ".text.crt0"
 
 	/* program entry-point */
 	.global _start