[PATCH] arm: Fix main-in-dso with non-BFD linkers (BZ 34098)

[Andreas Schwab]

On Jun 02 2026, Adhemerval Zanella wrote:

> Commit c2d6afb4a010 changed the PIC && !SHARED path of start.S (used by
> crt1.o and rcrt1.o) to load main via a R_ARM_REL32 data relocation.  When
> main is provided by a shared object, BFD ld synthesizes a canonical PLT
> entry for it, but other linkers (e.g. mold) do not, producing a broken
> binary that crashes at startup.
>
> Follow the aarch64 approach and reference main through a local __wrap_main
> that tail-calls it with a branch relocation, which every linker turns into
> a PLT entry.

Ok.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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