diff options
Diffstat (limited to 'arch/loongarch/kernel/module.c')
| -rw-r--r-- | arch/loongarch/kernel/module.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/loongarch/kernel/module.c b/arch/loongarch/kernel/module.c index b13b2858fe..c7d0338d12 100644 --- a/arch/loongarch/kernel/module.c +++ b/arch/loongarch/kernel/module.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <asm/alternative.h> #include <asm/inst.h> +#include <asm/unwind.h> static int rela_stack_push(s64 stack_value, s64 *rela_stack, size_t *rela_stack_top) { @@ -515,15 +516,28 @@ static void module_init_ftrace_plt(const Elf_Ehdr *hdr, int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *mod) { - const Elf_Shdr *s, *se; const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + const Elf_Shdr *s, *alt = NULL, *orc = NULL, *orc_ip = NULL, *ftrace = NULL; - for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) { + for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { if (!strcmp(".altinstructions", secstrs + s->sh_name)) - apply_alternatives((void *)s->sh_addr, (void *)s->sh_addr + s->sh_size); + alt = s; + if (!strcmp(".orc_unwind", secstrs + s->sh_name)) + orc = s; + if (!strcmp(".orc_unwind_ip", secstrs + s->sh_name)) + orc_ip = s; if (!strcmp(".ftrace_trampoline", secstrs + s->sh_name)) - module_init_ftrace_plt(hdr, s, mod); + ftrace = s; } + if (alt) + apply_alternatives((void *)alt->sh_addr, (void *)alt->sh_addr + alt->sh_size); + + if (orc && orc_ip) + unwind_module_init(mod, (void *)orc_ip->sh_addr, orc_ip->sh_size, (void *)orc->sh_addr, orc->sh_size); + + if (ftrace) + module_init_ftrace_plt(hdr, ftrace, mod); + return 0; } |