From: Yasha Cherikovsky <yasha.che3@xxxxxxxxx>
commit 3f0a53bc6482fb09770982a8447981260ea258dc upstream.
This fixes booting with the combination of CONFIG_RELOCATABLE=y
and CONFIG_MIPS_ELF_APPENDED_DTB=y.
Sections that appear after the relocation table are not relocated
on system boot (except .bss, which has special handling).
With CONFIG_MIPS_ELF_APPENDED_DTB, the dtb is part of the
vmlinux ELF, so it must be relocated together with everything else.
Fixes: 069fd766271d ("MIPS: Reserve space for relocation table")
Signed-off-by: Yasha Cherikovsky <yasha.che3@xxxxxxxxx>
Signed-off-by: Paul Burton <paul.burton@xxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Paul Burton <paul.burton@xxxxxxxx>
Cc: James Hogan <jhogan@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx # v4.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/kernel/vmlinux.lds.S | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -140,6 +140,13 @@ SECTIONS
PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
#endif
+#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
+ .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
+ *(.appended_dtb)
+ KEEP(*(.appended_dtb))
+ }
+#endif
+
#ifdef CONFIG_RELOCATABLE
. = ALIGN(4);
@@ -164,11 +171,6 @@ SECTIONS
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;
-#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
- .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
- *(.appended_dtb)
- KEEP(*(.appended_dtb))
- }
#endif
/*
* Align to 64K in attempt to eliminate holes before the
Patches currently in stable-queue which might be from yasha.che3@xxxxxxxxx are
queue-4.14/mips-ensure-elf-appended-dtb-is-relocated.patch
