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-rw-r--r--arch/loongarch/kernel/module.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/loongarch/kernel/module.c b/arch/loongarch/kernel/module.c
index b13b2858fe39..c7d0338d12c1 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;
}