x86: Add a link script for 64-bit x86

This needs a different image format from 32-bit x86, so add a new link
script.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/cpu/config.mk b/arch/x86/cpu/config.mk
index 1263221e699493aa95b487cb2df962ecea2110cc..4c99a35621db3118869d9418ccbd5bdb82514bb0 100644 (file)
--- a/arch/x86/cpu/config.mk
+++ b/arch/x86/cpu/config.mk
@@ -15,3 +15,9 @@ LDPPFLAGS += -DRESET_SEG_SIZE=$(CONFIG_RESET_SEG_SIZE)
 LDPPFLAGS += -DRESET_VEC_LOC=$(CONFIG_RESET_VEC_LOC)
 LDPPFLAGS += -DSTART_16=$(CONFIG_SYS_X86_START16)
 LDPPFLAGS += -DRESET_BASE="CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE)"
+
+ifdef CONFIG_X86_64
+ifndef CONFIG_SPL_BUILD
+LDSCRIPT = $(srctree)/arch/x86/cpu/u-boot-64.lds
+endif
+endif

diff --git a/arch/x86/cpu/u-boot-64.lds b/arch/x86/cpu/u-boot-64.lds
new file mode 100644 (file)
index 0000000..718790c
--- /dev/null
+++ b/arch/x86/cpu/u-boot-64.lds
@@ -0,0 +1,76 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <config.h>
+OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
+OUTPUT_ARCH(i386:x86-64)
+ENTRY(_start)
+
+SECTIONS
+{
+#ifndef CONFIG_CMDLINE
+       /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+#endif
+
+       . = CONFIG_SYS_TEXT_BASE;       /* Location of bootcode in flash */
+       __text_start = .;
+       .text  : { *(.text*); }
+
+       . = ALIGN(4);
+
+       . = ALIGN(4);
+       .u_boot_list : {
+               KEEP(*(SORT(.u_boot_list*)));
+       }
+
+       . = ALIGN(4);
+       .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+       . = ALIGN(4);
+       .data : { *(.data*) }
+
+       . = ALIGN(4);
+       .hash : { *(.hash*) }
+
+       . = ALIGN(4);
+       .got : { *(.got*) }
+
+       . = ALIGN(4);
+       __data_end = .;
+       __init_end = .;
+
+       . = ALIGN(4);
+       .dynsym : { *(.dynsym*) }
+
+       . = ALIGN(4);
+       __rel_dyn_start = .;
+       .rela.dyn : {
+               *(.rela*)
+       }
+       __rel_dyn_end = .;
+       . = ALIGN(4);
+
+       .dynamic : { *(.dynamic) }
+
+       . = ALIGN(4);
+       _end = .;
+
+       .bss __rel_dyn_start (OVERLAY) : {
+               __bss_start = .;
+               *(.bss)
+               *(COM*)
+               . = ALIGN(4);
+               __bss_end = .;
+       }
+
+       /DISCARD/ : { *(.dynsym) }
+       /DISCARD/ : { *(.dynstr*) }
+       /DISCARD/ : { *(.dynamic*) }
+       /DISCARD/ : { *(.plt*) }
+       /DISCARD/ : { *(.interp*) }
+       /DISCARD/ : { *(.gnu*) }
+}