Diffusion FreeBSD src repository 712c060c94fd

arm64: Make sure COMPAT_FREEBSD32 handles thumb entry point.
712c060c94fd
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Description

arm64: Make sure COMPAT_FREEBSD32 handles thumb entry point.

If the entry point for the binary executed is a thumb 2 entry point, make
sure we set the PSR_T bit, or the CPU will interpret it as arm32 code and
bad things will happen.

PR: 256899
MFC after: 1 week

Details

Provenance

cognet

Authored on Jun 30 2021, 12:50 PM

Parents

rGc1da17a86cdb: arm: Garbage collect _arm_memcpy/_arm_bzero.

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Event Timeline

cognet committed rG712c060c94fd: arm64: Make sure COMPAT_FREEBSD32 handles thumb entry point. (authored by cognet).Jun 30 2021, 12:55 PM

cognet mentioned this in rG8c3bd133dd52: arm: Make sure we can handle a thumb entry point..Jun 30 2021, 9:00 PM

cognet mentioned this in rGd2e48ad87d3e: arm64: Make sure COMPAT_FREEBSD32 handles thumb entry point..Jul 7 2021, 8:24 PM

cognet mentioned this in rG82a1d67f018c: arm: Make sure we can handle a thumb entry point..

cognet mentioned this in rG9bc7bbcf214b: arm: Make sure we can handle a thumb entry point..

Changes (1)

Path

Size

sys/

arm64/

elf32_machdep.c

rG712c060c94fd

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sys/arm64/arm64/elf32_machdep.c