Messages in this thread Patch in this message | | | Date | Tue, 12 Jul 2016 20:11:14 -0400 | From | Jessica Yu <> | Subject | [PATCH] arm64: take SHN_LIVEPATCH syms into account when calculating plt_max_entries |
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SHN_LIVEPATCH symbols are technically a subset of SHN_UNDEF/undefined symbols, except that their addresses are resolved by livepatch at runtime. Therefore, when calculating the upper-bound for the number of plt entries to allocate, make sure to take livepatch symbols into account as well.
Signed-off-by: Jessica Yu <jeyu@redhat.com> --- arch/arm64/kernel/module-plts.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c index 1ce90d8..1e95dc1 100644 --- a/arch/arm64/kernel/module-plts.c +++ b/arch/arm64/kernel/module-plts.c @@ -122,7 +122,8 @@ static unsigned int count_plts(Elf64_Sym *syms, Elf64_Rela *rela, int num) * as well, so modules can never grow beyond that limit. */ s = syms + ELF64_R_SYM(rela[i].r_info); - if (s->st_shndx != SHN_UNDEF) + if (s->st_shndx != SHN_UNDEF && + s->st_shndx != SHN_LIVEPATCH) break;
/* -- 2.5.5
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