syslinux.ld: add support for .ctors and .dtors

We're going to need at least constructors when we start linking in
com32 library code in a serious way.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 22 insertions, 2 deletions

diff --git a/core/syslinux.ld b/core/syslinux.ld
index 23f74b2f..4906ce4a 100644
--- a/core/syslinux.ld
+++ b/core/syslinux.ld
@@ -240,12 +240,32 @@ SECTIONS
 
 	. = ALIGN(4);
 
+	__ctors_vma = .;
+	__ctors_lma = __ctors_vma + __text_lma - __text_vma;
+	.ctors : AT(__ctors_lma) {
+		__ctors_start = .;
+		KEEP (*(SORT(.ctors.*)))
+		KEEP (*(.ctors))
+		__ctors_end = .;
+	}
+
+	__dtors_vma = .;
+	__dtors_lma = __dtors_vma + __text_lma - __text_vma;
+	.dtors : AT(__dtors_lma) {
+		__dtors_start = .;
+		KEEP (*(SORT(.dtors.*)))
+		KEEP (*(.dtors))
+		__dtors_end = .;
+	}
+
+	. = ALIGN(4);
+
 	__got_vma = .;
 	__got_lma = __got_vma + __text_lma - __text_vma;
 	.got : AT(__got_lma) {
 		__got_start = .;
-		*(.got.plt)
-		*(.got)
+		KEEP (*(.got.plt))
+		KEEP (*(.got))
 		__got_end = .;
 	}