arm64: add support for building vmlinux as a relocatable PIE binary

[cascardo/linux.git] / arch / arm64 / kernel / vmlinux.lds.S

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index e3928f5..e3f6cd7 100644 (file)
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -87,15 +87,16 @@ SECTIONS
                EXIT_CALL
                *(.discard)
                *(.discard.*)
+               *(.interp .dynamic)
        }
 
-       . = PAGE_OFFSET + TEXT_OFFSET;
+       . = KIMAGE_VADDR + TEXT_OFFSET;
 
        .head.text : {
                _text = .;
                HEAD_TEXT
        }
-       ALIGN_DEBUG_RO
+       ALIGN_DEBUG_RO_MIN(PAGE_SIZE)
        .text : {                       /* Real text segment            */
                _stext = .;             /* Text and read-only data      */
                        __exception_text_start = .;
@@ -116,10 +117,9 @@ SECTIONS
        RO_DATA(PAGE_SIZE)
        EXCEPTION_TABLE(8)
        NOTES
-       ALIGN_DEBUG_RO
-       _etext = .;                     /* End of text and rodata section */
 
        ALIGN_DEBUG_RO_MIN(PAGE_SIZE)
+       _etext = .;                     /* End of text and rodata section */
        __init_begin = .;
 
        INIT_TEXT_SECTION(8)
@@ -150,6 +150,21 @@ SECTIONS
        .altinstr_replacement : {
                *(.altinstr_replacement)
        }
+       .rela : ALIGN(8) {
+               __reloc_start = .;
+               *(.rela .rela*)
+               __reloc_end = .;
+       }
+       .dynsym : ALIGN(8) {
+               __dynsym_start = .;
+               *(.dynsym)
+       }
+       .dynstr : {
+               *(.dynstr)
+       }
+       .hash : {
+               *(.hash)
+       }
 
        . = ALIGN(PAGE_SIZE);
        __init_end = .;
@@ -187,4 +202,4 @@ ASSERT(__idmap_text_end - (__idmap_text_start & ~(SZ_4K - 1)) <= SZ_4K,
 /*
  * If padding is applied before .head.text, virt<->phys conversions will fail.
  */
-ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned")
+ASSERT(_text == (KIMAGE_VADDR + TEXT_OFFSET), "HEAD is misaligned")