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-rw-r--r--fs/proc/vmcore.c44
1 files changed, 11 insertions, 33 deletions
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 1082492e02fc..8ec648368985 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -204,36 +204,15 @@ static struct vmcore* __init get_new_element(void)
return kzalloc(sizeof(struct vmcore), GFP_KERNEL);
}
-static u64 __init get_vmcore_size_elf64(char *elfptr, size_t elfsz)
+static u64 __init get_vmcore_size(size_t elfsz, size_t elfnotesegsz,
+ struct list_head *vc_list)
{
- int i;
u64 size;
- Elf64_Ehdr *ehdr_ptr;
- Elf64_Phdr *phdr_ptr;
-
- ehdr_ptr = (Elf64_Ehdr *)elfptr;
- phdr_ptr = (Elf64_Phdr*)(elfptr + sizeof(Elf64_Ehdr));
- size = elfsz;
- for (i = 0; i < ehdr_ptr->e_phnum; i++) {
- size += phdr_ptr->p_memsz;
- phdr_ptr++;
- }
- return size;
-}
-
-static u64 __init get_vmcore_size_elf32(char *elfptr, size_t elfsz)
-{
- int i;
- u64 size;
- Elf32_Ehdr *ehdr_ptr;
- Elf32_Phdr *phdr_ptr;
+ struct vmcore *m;
- ehdr_ptr = (Elf32_Ehdr *)elfptr;
- phdr_ptr = (Elf32_Phdr*)(elfptr + sizeof(Elf32_Ehdr));
- size = elfsz;
- for (i = 0; i < ehdr_ptr->e_phnum; i++) {
- size += phdr_ptr->p_memsz;
- phdr_ptr++;
+ size = elfsz + elfnotesegsz;
+ list_for_each_entry(m, vc_list, list) {
+ size += m->size;
}
return size;
}
@@ -856,20 +835,19 @@ static int __init parse_crash_elf_headers(void)
rc = parse_crash_elf64_headers();
if (rc)
return rc;
-
- /* Determine vmcore size. */
- vmcore_size = get_vmcore_size_elf64(elfcorebuf, elfcorebuf_sz);
} else if (e_ident[EI_CLASS] == ELFCLASS32) {
rc = parse_crash_elf32_headers();
if (rc)
return rc;
-
- /* Determine vmcore size. */
- vmcore_size = get_vmcore_size_elf32(elfcorebuf, elfcorebuf_sz);
} else {
pr_warn("Warning: Core image elf header is not sane\n");
return -EINVAL;
}
+
+ /* Determine vmcore size. */
+ vmcore_size = get_vmcore_size(elfcorebuf_sz, elfnotes_sz,
+ &vmcore_list);
+
return 0;
}

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