From: Sascha Hauer <s.hauer@pengutronix.de>
To: BAREBOX <barebox@lists.infradead.org>,
Sascha Hauer <s.hauer@pengutronix.de>
Cc: "Claude Sonnet 4.5" <noreply@anthropic.com>,
Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH v5 00/22] PBL: Add PBL ELF loading support with dynamic relocations
Date: Mon, 19 Jan 2026 13:23:21 +0100 [thread overview]
Message-ID: <176882540149.920695.9019778937146282626.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20260116-pbl-load-elf-v5-0-51d042021c5a@pengutronix.de>
On Fri, 16 Jan 2026 09:12:11 +0100, Sascha Hauer wrote:
> Until now we linked the raw barebox proper binary into the PBL which
> comes with a number of disadvantages. We rely on self-modifying code
> to in barebox proper (relocate_to_current_adr()) and have no initialized
> bss segment (setup_c()). Also we can only mark the .text and .rodata as
> readonly during runtime of barebox proper.
>
> This series overcomes this by linking a ELF image into the PBL. This
> image is properly layed out, linked and initialized in the PBL. With
> this barebox proper has a proper C environment and text/rodata
> protection from the start.
>
> [...]
Applied, thanks!
[01/22] Makefile.compiler: add objcopy-option
https://git.pengutronix.de/cgit/barebox/commit/?id=19a380e98624 (link may not be stable)
[02/22] elf: only accept images matching the native ELF_CLASS
https://git.pengutronix.de/cgit/barebox/commit/?id=b53168361c5a (link may not be stable)
[03/22] elf: build for PBL as well
https://git.pengutronix.de/cgit/barebox/commit/?id=027452b87aa8 (link may not be stable)
[04/22] elf: add elf segment iterator
https://git.pengutronix.de/cgit/barebox/commit/?id=ebb729561f1c (link may not be stable)
[05/22] elf: add dynamic relocation support
https://git.pengutronix.de/cgit/barebox/commit/?id=fbb6a6eec9c9 (link may not be stable)
[06/22] ARM: implement elf_apply_relocations() for ELF relocation support
https://git.pengutronix.de/cgit/barebox/commit/?id=487027fd354d (link may not be stable)
[07/22] riscv: define generic relocate_image
https://git.pengutronix.de/cgit/barebox/commit/?id=89d48cf83187 (link may not be stable)
[08/22] riscv: implement elf_apply_relocations() for ELF relocation support
https://git.pengutronix.de/cgit/barebox/commit/?id=4a68784a2ce9 (link may not be stable)
[09/22] elf: implement elf_load_inplace()
https://git.pengutronix.de/cgit/barebox/commit/?id=ee11f1624d20 (link may not be stable)
[10/22] elf: create elf_open_binary_into()
https://git.pengutronix.de/cgit/barebox/commit/?id=6610142f48bf (link may not be stable)
[11/22] Makefile: add vmbarebox build target
https://git.pengutronix.de/cgit/barebox/commit/?id=2337f2c3d413 (link may not be stable)
[12/22] PBL: allow to link ELF image into PBL
https://git.pengutronix.de/cgit/barebox/commit/?id=008191cfab24 (link may not be stable)
[13/22] mmu: add MAP_CACHED_RO mapping type
https://git.pengutronix.de/cgit/barebox/commit/?id=f28e767645dc (link may not be stable)
[14/22] ARM: drop arm_fixup_vectors()
https://git.pengutronix.de/cgit/barebox/commit/?id=aeffa0386702 (link may not be stable)
[15/22] ARM: linker script: create separate PT_LOAD segments for text, rodata, and data
https://git.pengutronix.de/cgit/barebox/commit/?id=93120ce68ced (link may not be stable)
[16/22] ARM: link ELF image into PBL
https://git.pengutronix.de/cgit/barebox/commit/?id=dbbca16895f5 (link may not be stable)
[17/22] ARM: cleanup barebox proper entry
https://git.pengutronix.de/cgit/barebox/commit/?id=e06e94ae2e3c (link may not be stable)
[18/22] ARM: PBL: setup MMU with proper permissions from ELF segments
https://git.pengutronix.de/cgit/barebox/commit/?id=6cb7fc2edbb6 (link may not be stable)
[19/22] riscv: linker script: create separate PT_LOAD segments for text, rodata, and data
https://git.pengutronix.de/cgit/barebox/commit/?id=bfd483b0995f (link may not be stable)
[20/22] riscv: link ELF image into PBL
https://git.pengutronix.de/cgit/barebox/commit/?id=ec8b2ce7c2ac (link may not be stable)
[21/22] riscv: Allwinner D1: Drop M-Mode
https://git.pengutronix.de/cgit/barebox/commit/?id=29881d661727 (link may not be stable)
[22/22] riscv: add ELF segment-based memory protection with MMU
https://git.pengutronix.de/cgit/barebox/commit/?id=384faa803e6b (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2026-01-19 12:24 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-16 8:12 Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 01/22] Makefile.compiler: add objcopy-option Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 02/22] elf: only accept images matching the native ELF_CLASS Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 03/22] elf: build for PBL as well Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 04/22] elf: add elf segment iterator Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 05/22] elf: add dynamic relocation support Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 06/22] ARM: implement elf_apply_relocations() for ELF " Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 07/22] riscv: define generic relocate_image Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 08/22] riscv: implement elf_apply_relocations() for ELF relocation support Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 09/22] elf: implement elf_load_inplace() Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 10/22] elf: create elf_open_binary_into() Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 11/22] Makefile: add vmbarebox build target Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 12/22] PBL: allow to link ELF image into PBL Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 13/22] mmu: add MAP_CACHED_RO mapping type Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 14/22] ARM: drop arm_fixup_vectors() Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 15/22] ARM: linker script: create separate PT_LOAD segments for text, rodata, and data Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 16/22] ARM: link ELF image into PBL Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 17/22] ARM: cleanup barebox proper entry Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 18/22] ARM: PBL: setup MMU with proper permissions from ELF segments Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 19/22] riscv: linker script: create separate PT_LOAD segments for text, rodata, and data Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 20/22] riscv: link ELF image into PBL Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 21/22] riscv: Allwinner D1: Drop M-Mode Sascha Hauer
2026-01-16 8:12 ` [PATCH v5 22/22] riscv: add ELF segment-based memory protection with MMU Sascha Hauer
2026-01-19 12:23 ` Sascha Hauer [this message]
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