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MIPS: Ensure ELF appended dtb is relocated

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commit 3f0a53bc64 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: 069fd76627 ("MIPS: Reserve space for relocation table")
Signed-off-by: Yasha Cherikovsky <yasha.che3@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yasha Cherikovsky 2019-03-08 14:58:51 +02:00 committed by Greg Kroah-Hartman
parent f6b55e7780
commit c7ac334f27
1 changed files with 7 additions and 5 deletions
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12
arch/mips/kernel/vmlinux.lds.S
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@ -138,6 +138,13 @@ 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);
@ -162,11 +169,6 @@ 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