[efi] Centralise architecture-independent EFI Makefile and linker script

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 110 insertions, 0 deletions

diff --git a/src/scripts/efi.lds b/src/scripts/efi.lds
new file mode 100644
index 00000000..f1049f24
--- /dev/null
+++ b/src/scripts/efi.lds
@@ -0,0 +1,110 @@
+/* -*- sh -*- */
+
+/*
+ * Linker script for EFI images
+ *
+ */
+
+SECTIONS {
+
+    /* The file starts at a virtual address of zero, and sections are
+     * contiguous.  Each section is aligned to at least _max_align,
+     * which defaults to 32.  Load addresses are equal to virtual
+     * addresses.
+     */
+
+    _max_align = 32;
+
+    /* Allow plenty of space for file headers */
+    . = 0x1000;
+
+    /*
+     * The text section
+     *
+     */
+
+    . = ALIGN ( _max_align );
+    .text : {
+	_text = .;
+	*(.text)
+	*(.text.*)
+	_etext = .;
+    }
+
+    /*
+     * The rodata section
+     *
+     */
+
+    . = ALIGN ( _max_align );
+    .rodata : {
+	_rodata = .;
+	*(.rodata)
+	*(.rodata.*)
+	_erodata = .;
+    }
+
+    /*
+     * The data section
+     *
+     */
+
+    . = ALIGN ( _max_align );
+    .data : {
+	_data = .;
+	*(.data)
+	*(.data.*)
+	KEEP(*(SORT(.tbl.*)))	/* Various tables.  See include/tables.h */
+	KEEP(*(.provided))
+	KEEP(*(.provided.*))
+	_edata = .;
+    }
+
+    /*
+     * The bss section
+     *
+     */
+
+    . = ALIGN ( _max_align );
+    .bss : {
+	_bss = .;
+	*(.bss)
+	*(.bss.*)
+	*(COMMON)
+	_ebss = .;
+    }
+
+    /*
+     * Weak symbols that need zero values if not otherwise defined
+     *
+     */
+
+    .weak 0x0 : {
+	_weak = .;
+	*(.weak)
+	*(.weak.*)
+	_eweak = .;
+    }
+    _assert = ASSERT ( ( _weak == _eweak ), ".weak is non-zero length" );
+
+    /*
+     * Dispose of the comment and note sections to make the link map
+     * easier to read
+     *
+     */
+
+    /DISCARD/ : {
+	*(.comment)
+	*(.comment.*)
+	*(.note)
+	*(.note.*)
+	*(.eh_frame)
+	*(.eh_frame.*)
+	*(.rel)
+	*(.rel.*)
+	*(.einfo)
+	*(.einfo.*)
+	*(.discard)
+	*(.discard.*)
+    }
+}