Hey. Can you describe what exactly are you trying to solve?
Le ven. 3 mai 2024, 17:46, Mathieu Mirmont <m...@neutrality.ch> a écrit :
> It isn't an error for an elf executable to be lacking a section header
> table. In this case we should just be returning shnum = 0.
>
> According to the elf(5) manual page:
> "
> e_shoff This member holds the section header table's file offset in
> bytes. If the file has no section header table, this member
> holds zero.
> "
>
> Signed-off-by: Mathieu Mirmont <m...@neutrality.ch>
> ---
> grub-core/kern/elfXX.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/grub-core/kern/elfXX.c b/grub-core/kern/elfXX.c
> index aabf4b9d7..fe4ffb261 100644
> --- a/grub-core/kern/elfXX.c
> +++ b/grub-core/kern/elfXX.c
> @@ -220,12 +220,12 @@ grub_elfXX_get_shnum (ElfXX_Ehdr *e, ElfXX_Shnum
> *shnum)
> if (e == NULL)
> return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("NULL pointer passed
> for elf header"));
>
> + if (e->e_shoff == 0)
> + return GRUB_ERR_NONE;
> +
> *shnum = e->e_shnum;
> if (*shnum == SHN_UNDEF)
> {
> - if (e->e_shoff == 0)
> -
> return grub_error (GRUB_ERR_BAD_NUMBER, N_("invalid section header
> table offset in e_shoff"));
> -
> s = (ElfXX_Shdr *) ((grub_uint8_t *) e + e->e_shoff);
> *shnum = s->sh_size;
> if (*shnum < SHN_LORESERVE)
> --
> 2.30.2
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>
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