[PATCH 20/27] x86: efi: Tidy up the link scripts

[Simon Glass]

Mark important sections with KEEP so that the linker will not remove
them when garbage-collection is (later) enabled.

Provide a _end symbol so that this can be accessed in setup_mon_len()

Signed-off-by: Simon Glass <s...@chromium.org>
---

 arch/x86/lib/elf_ia32_efi.lds   | 5 +++--
 arch/x86/lib/elf_x86_64_efi.lds | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/lib/elf_ia32_efi.lds b/arch/x86/lib/elf_ia32_efi.lds
index a3ff0068b40..230df63bb48 100644
--- a/arch/x86/lib/elf_ia32_efi.lds
+++ b/arch/x86/lib/elf_ia32_efi.lds
@@ -51,7 +51,7 @@ SECTIONS
 
                /* U-Boot lists and device tree */
                . = ALIGN(8);
-               *(SORT(__u_boot_list*));
+               KEEP(*(SORT(__u_boot_list*)));
                . = ALIGN(8);
                *(.dtb*);
        }
@@ -75,7 +75,7 @@ SECTIONS
 
        . = ALIGN(4096);
        .reloc : {      /* This is the PECOFF .reloc section! */
-               *(.reloc)
+               KEEP(*(.reloc))
        }
 
        . = ALIGN(4096);
@@ -83,6 +83,7 @@ SECTIONS
        . = ALIGN(4096);
        .dynstr : { *(.dynstr) }
        . = ALIGN(4096);
+       _end = .;
 
        /DISCARD/ : {
                *(.rel.reloc)
diff --git a/arch/x86/lib/elf_x86_64_efi.lds b/arch/x86/lib/elf_x86_64_efi.lds
index 5e1e8714351..e5da5a58952 100644
--- a/arch/x86/lib/elf_x86_64_efi.lds
+++ b/arch/x86/lib/elf_x86_64_efi.lds
@@ -21,7 +21,7 @@ SECTIONS
 
        . = ALIGN(4096);
        .reloc : {
-               *(.reloc)
+               KEEP(*(.reloc))
        }
 
        . = ALIGN(4096);
@@ -44,7 +44,7 @@ SECTIONS
 
                /* U-Boot lists and device tree */
                . = ALIGN(8);
-               *(SORT(__u_boot_list*));
+               KEEP(*(SORT(__u_boot_list*)));
                . = ALIGN(8);
                *(.dtb*);
        }
@@ -65,6 +65,7 @@ SECTIONS
        . = ALIGN(4096);
        .dynstr : { *(.dynstr) }
        . = ALIGN(4096);
+       _end = .;
 
        /DISCARD/ : {
                *(.rela.reloc)
-- 
2.43.0