diff options
| author | Sam Day <[email protected]> | 2026-05-28 05:21:06 +0000 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-06-04 09:37:13 -0600 |
| commit | 31c2bb0cd1832f1030c42fbf588e7c4911e619dc (patch) | |
| tree | d266abbf6a93ac35e57a850e26331e0cfd774f17 | |
| parent | af4aad1f0a0beba82d2015d79b450b59bf34d2bc (diff) | |
arch: arm: force 4K page alignment in linker
Since 5c71f8110, the u-boot.elf produced by dragonboard410c_defconfig no
longer fits in the 1MiB aboot partition it is intended for.
To be precise, this issue occurs on toolchains that have a linker with a
COMMONPAGESIZE > 4K. Since u-boot is hardcoded for 4K granules, we
ensure that the linker doesn't try to align to anything larger than
that, otherwise we're just filling our ELFs with a bunch of useless
zeros.
Suggested-by: Stephan Gerhold <[email protected]>
Signed-off-by: Sam Day <[email protected]>
Tested-by: Peter Robinson <[email protected]>
| -rw-r--r-- | arch/arm/config.mk | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/config.mk b/arch/arm/config.mk index a7eff84a267..bce9a31e966 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -112,6 +112,14 @@ endif # needed for relocation LDFLAGS_u-boot += -pie +ifeq ($(CONFIG_ARM64),y) +# U-Boot uses fixed 4K granules, so we force the linker to match. +# Otherwise, we're subject to toolchain preferences, (e.g Fedora's +# aarch64-linux-none toolchain selects 64K granules) and we end up wasting +# a lot of space in ELFs with MMU_PGPROT enabled. +LDFLAGS_u-boot += -z common-page-size=0x1000 -z max-page-size=0x1000 +endif + # # FIXME: binutils versions < 2.22 have a bug in the assembler where # branches to weak symbols can be incorrectly optimized in thumb mode |