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Re: [PATCH v4 03/10] modules: Don't allocate space for non-allocable sec
From: |
Daniel Kiper |
Subject: |
Re: [PATCH v4 03/10] modules: Don't allocate space for non-allocable sections. |
Date: |
Mon, 24 Jun 2024 17:57:54 +0200 |
User-agent: |
NeoMutt/20170113 (1.7.2) |
On Wed, Jun 12, 2024 at 04:57:06PM +0100, Mate Kukri wrote:
> From: Peter Jones <pjones@redhat.com>
>
> Currently when loading grub modules, we allocate space for all sections,
> including those without SHF_ALLOC set. We then copy the sections that
> /do/ have SHF_ALLOC set into the allocated memory, leaving some of our
> allocation untouched forever. Additionally, on platforms with GOT
> fixups and trampolines, we currently compute alignment round-ups for the
> sections and sections with sh_size = 0.
>
> This patch removes the extra space from the allocation computation, and
> makes the allocation computation loop skip empty sections as the loading
> loop does.
>
> Signed-off-by: Peter Jones <pjones@redhat.com>
> Signed-off-by: Jan Setje-Eilers <jan.setjeeilers@oracle.com>
> Signed-off-by: Mate Kukri <mate.kukri@canonical.com>
> Reviewed-By: Vladimir Serbinenko
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Daniel
- [PATCH v4 00/10] UEFI NX support and NX Linux loader using shim loader protocol, Mate Kukri, 2024/06/12
- [PATCH v4 06/10] nx: set page permissions for loaded modules., Mate Kukri, 2024/06/12
- [PATCH v4 02/10] modules: strip .llvm_addrsig sections and similar., Mate Kukri, 2024/06/12
- [PATCH v4 01/10] modules: make .module_license read-only, Mate Kukri, 2024/06/12
- [PATCH v4 03/10] modules: Don't allocate space for non-allocable sections., Mate Kukri, 2024/06/12
- Re: [PATCH v4 03/10] modules: Don't allocate space for non-allocable sections.,
Daniel Kiper <=
- [PATCH v4 05/10] nx: add memory attribute get/set API, Mate Kukri, 2024/06/12
- [PATCH v4 10/10] efi: Disallow fallback to legacy Linux loader when shim says NX is required., Mate Kukri, 2024/06/12
- [PATCH v4 04/10] modules: load module sections at page-aligned addresses, Mate Kukri, 2024/06/12
- [PATCH v4 07/10] nx: set the nx compatible flag in EFI grub images, Mate Kukri, 2024/06/12
- [PATCH v4 08/10] efi: Provide wrappers for load_image, start_image, unload_image, Mate Kukri, 2024/06/12
- [PATCH v4 09/10] efi: Use shim's loader protocol for EFI image verification and loading, Mate Kukri, 2024/06/12
- Re: [PATCH v4 00/10] UEFI NX support and NX Linux loader using shim loader protocol, Daniel Kiper, 2024/06/25