1 files changed, 32 insertions, 0 deletions

diff --git a/arch/sh/kernel/module.c b/arch/sh/kernel/module.c
index c2efdcde266f..d297a148d16c 100644
--- a/arch/sh/kernel/module.c
+++ b/arch/sh/kernel/module.c
@@ -32,6 +32,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <asm/unaligned.h>
+#include <asm/dwarf.h>
 
 void *module_alloc(unsigned long size)
 {
@@ -145,10 +146,41 @@ int module_finalize(const Elf_Ehdr *hdr,
                     const Elf_Shdr *sechdrs,
                     struct module *me)
 {
+#ifdef CONFIG_DWARF_UNWINDER
+        unsigned int i, err;
+        unsigned long start, end;
+        char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+
+        start = end = 0;
+
+        for (i = 1; i < hdr->e_shnum; i++) {
+                /* Alloc bit cleared means "ignore it." */
+                if ((sechdrs[i].sh_flags & SHF_ALLOC)
+                    && !strcmp(secstrings+sechdrs[i].sh_name, ".eh_frame")) {
+                        start = sechdrs[i].sh_addr;
+                        end = start + sechdrs[i].sh_size;
+                        break;
+                }
+        }
+
+        /* Did we find the .eh_frame section? */
+        if (i != hdr->e_shnum) {
+                err = dwarf_parse_section((char *)start, (char *)end, me);
+                if (err)
+                        printk(KERN_WARNING "%s: failed to parse DWARF info\n",
+                               me->name);
+        }
+
+#endif /* CONFIG_DWARF_UNWINDER */
+
         return module_bug_finalize(hdr, sechdrs, me);
 }
 
 void module_arch_cleanup(struct module *mod)
 {
         module_bug_cleanup(mod);
+
+#ifdef CONFIG_DWARF_UNWINDER
+        dwarf_module_unload(mod);
+#endif /* CONFIG_DWARF_UNWINDER */
 }