2 files changed, 32 insertions, 0 deletions

diff --git a/arch/ia64/kernel/elfcore.c b/arch/ia64/kernel/elfcore.c
index 57a2298a858..bac1639bc32 100644
--- a/arch/ia64/kernel/elfcore.c
+++ b/arch/ia64/kernel/elfcore.c
@@ -62,3 +62,19 @@ int elf_core_write_extra_data(struct file *file, size_t *size,
         }
         return 1;
 }
+
+size_t elf_core_extra_data_size(void)
+{
+        const struct elf_phdr *const gate_phdrs =
+                (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
+        int i;
+        size_t size = 0;
+
+        for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
+                if (gate_phdrs[i].p_type == PT_LOAD) {
+                        size += PAGE_ALIGN(gate_phdrs[i].p_memsz);
+                        break;
+                }
+        }
+        return size;
+}
diff --git a/arch/um/sys-i386/elfcore.c b/arch/um/sys-i386/elfcore.c
index 30cac52a04b..6bb49b687c9 100644
--- a/arch/um/sys-i386/elfcore.c
+++ b/arch/um/sys-i386/elfcore.c
@@ -65,3 +65,19 @@ int elf_core_write_extra_data(struct file *file, size_t *size,
         }
         return 1;
 }
+
+size_t elf_core_extra_data_size(void)
+{
+        if ( vsyscall_ehdr ) {
+                const struct elfhdr *const ehdrp =
+                        (struct elfhdr *)vsyscall_ehdr;
+                const struct elf_phdr *const phdrp =
+                        (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+                int i;
+
+                for (i = 0; i < ehdrp->e_phnum; ++i)
+                        if (phdrp[i].p_type == PT_LOAD)
+                                return (size_t) phdrp[i].p_filesz;
+        }
+        return 0;
+}