From ba0ac0efe29927d135d073176bba559a25733b43 Mon Sep 17 00:00:00 2001 From: WANG Rui Date: Fri, 24 Nov 2023 16:54:10 +0800 Subject: LoongArch: Fix an issue with relocatable vmlinux Normally vmlinux for LoongArch is of ET_EXEC type, while if built with CONFIG_RELOCATABLE (this is PIE) and Clang, it will be of ET_DYN type. Meanwhile, physical address field of segments in vmlinux has actually the same value as virtual address field. Similar to arm64, this patch allows to unconditionally skip the check on LoongArch. Link: https://github.com/ClangBuiltLinux/linux/issues/1963 Signed-off-by: WANG Rui Reviewed-by: Huacai Chen Signed-off-by: Simon Horman --- kexec/kexec-elf-exec.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kexec/kexec-elf-exec.c b/kexec/kexec-elf-exec.c index bea7b3e3..b3376427 100644 --- a/kexec/kexec-elf-exec.c +++ b/kexec/kexec-elf-exec.c @@ -39,12 +39,13 @@ static int get_elf_exec_load_base(struct mem_ehdr *ehdr, struct kexec_info *info unsigned long first, last; size_t i; - /* Note on arm64: + /* Note on arm64 and loongarch64: * arm64's vmlinux has virtual address in physical address * field of PT_LOAD segments. So the following validity check * and relocation makes no sense on arm64. + * This is also applies to LoongArch. */ - if (ehdr->e_machine == EM_AARCH64) + if (ehdr->e_machine == EM_AARCH64 || ehdr->e_machine == EM_LOONGARCH) return 0; first = ULONG_MAX; -- cgit 1.2.3-korg