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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: BAREBOX <barebox@lists.infradead.org>,
	"Claude Sonnet 4.5" <noreply@anthropic.com>
Subject: Re: [PATCH v3 09/23] elf: create elf_open_binary_into()
Date: Tue, 13 Jan 2026 23:38:47 +0100	[thread overview]
Message-ID: <aWbJd6CoK3_vV-0x@pengutronix.de> (raw)
In-Reply-To: <9cd07445-9fbf-43ab-81bb-85f07b9327b0@pengutronix.de>

On Mon, Jan 12, 2026 at 02:06:37PM +0100, Ahmad Fatoum wrote:
> On 1/8/26 4:50 PM, Sascha Hauer wrote:
> > elf_open_binary() returns a dynamically allocated struct elf_image *. We
> > do not have malloc in the PBL, so for better PBL support create
> > elf_open_binary_into() which takes a struct elf_image * as argument.
> 
> Strictly speaking, we have the <linux/mm/decompress.h> allocator and as
> this runs after decompression, the early malloc area is already
> allocated too, but I don't feel strongly about it.

This is only implemented for arm, mips and riscv. I don't think that
it's worth implementing for the other architectures just to get a single
piece of memory that can easily be statically allocated.

Sascha

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  reply	other threads:[~2026-01-13 22:39 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-08 15:49 [PATCH v3 00/23] PBL: Add PBL ELF loading support with dynamic relocations Sascha Hauer
2026-01-08 15:49 ` [PATCH v3 01/23] Makefile.compiler: add objcopy-option Sascha Hauer
2026-01-08 16:25   ` Ahmad Fatoum
2026-01-08 15:49 ` [PATCH v3 02/23] elf: only accept images matching the native ELF_CLASS Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 03/23] elf: build for PBL as well Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 04/23] elf: add dynamic relocation support Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 05/23] ARM: implement elf_apply_relocations() for ELF " Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 06/23] riscv: define generic relocate_image Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 07/23] riscv: implement elf_apply_relocations() for ELF relocation support Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 08/23] elf: implement elf_load_inplace() Sascha Hauer
2026-01-12 13:04   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 09/23] elf: create elf_open_binary_into() Sascha Hauer
2026-01-12 13:06   ` Ahmad Fatoum
2026-01-13 22:38     ` Sascha Hauer [this message]
2026-01-08 15:50 ` [PATCH v3 10/23] Makefile: add vmbarebox build target Sascha Hauer
2026-01-12 13:08   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 11/23] PBL: allow to link ELF image into PBL Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 12/23] mmu: add MAP_CACHED_RO mapping type Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 13/23] mmu: introduce pbl_remap_range() Sascha Hauer
2026-01-12 13:10   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 14/23] ARM: drop arm_fixup_vectors() Sascha Hauer
2026-01-12 13:16   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 15/23] ARM: linker script: create separate PT_LOAD segments for text, rodata, and data Sascha Hauer
2026-01-12 13:20   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 16/23] ARM: link ELF image into PBL Sascha Hauer
2026-01-12 13:25   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 17/23] ARM: PBL: setup MMU with proper permissions from ELF segments Sascha Hauer
2026-01-12 13:38   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 18/23] riscv: linker script: create separate PT_LOAD segments for text, rodata, and data Sascha Hauer
2026-01-12 13:40   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 19/23] riscv: link ELF image into PBL Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 20/23] riscv: Allwinner D1: Drop M-Mode Sascha Hauer
2026-01-08 15:50 ` [PATCH v3 21/23] riscv: add ELF segment-based memory protection with MMU Sascha Hauer
2026-01-12 13:43   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 22/23] ARM: cleanup barebox proper entry Sascha Hauer
2026-01-12 13:21   ` Ahmad Fatoum
2026-01-08 15:50 ` [PATCH v3 23/23] riscv: " Sascha Hauer
2026-01-12 13:44   ` Ahmad Fatoum

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