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author | Jani Nikula <jani.nikula@intel.com> | 2019-11-15 14:17:39 +0300 |
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committer | Jani Nikula <jani.nikula@intel.com> | 2019-11-15 14:17:39 +0300 |
commit | e205ceeb253723f4e4bdce619844ed678ae48276 (patch) | |
tree | b6f5e3b21f915320a86733504faf8206569b8057 /arch/s390/boot/startup.c | |
parent | 1cdc2330e8d396c9cbebfc75fba4c94d34f80782 (diff) | |
parent | 17cc51390c141662748dbbc2fe98f3ed10f2e13e (diff) | |
download | linux-e205ceeb253723f4e4bdce619844ed678ae48276.tar.xz |
Merge drm/drm-next into drm-intel-next-queued
Backmerge to get dfce90259d74 ("Backmerge i915 security patches from
commit 'ea0b163b13ff' into drm-next") and thus 100d46bd72ec ("Merge
Intel Gen8/Gen9 graphics fixes from Jon Bloomfield.").
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'arch/s390/boot/startup.c')
-rw-r--r-- | arch/s390/boot/startup.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index 596ca7cc4d7b..5367950510f6 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -101,10 +101,18 @@ static void handle_relocs(unsigned long offset) dynsym = (Elf64_Sym *) vmlinux.dynsym_start; for (rela = rela_start; rela < rela_end; rela++) { loc = rela->r_offset + offset; - val = rela->r_addend + offset; + val = rela->r_addend; r_sym = ELF64_R_SYM(rela->r_info); - if (r_sym) - val += dynsym[r_sym].st_value; + if (r_sym) { + if (dynsym[r_sym].st_shndx != SHN_UNDEF) + val += dynsym[r_sym].st_value + offset; + } else { + /* + * 0 == undefined symbol table index (STN_UNDEF), + * used for R_390_RELATIVE, only add KASLR offset + */ + val += offset; + } r_type = ELF64_R_TYPE(rela->r_info); rc = arch_kexec_do_relocs(r_type, (void *) loc, val, 0); if (rc) |