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Re: [Qemu-devel] [PATCH v3 0/4] target/arm: Implement ARMv8.5-BTI
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH v3 0/4] target/arm: Implement ARMv8.5-BTI |
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Date: |
Tue, 26 Mar 2019 08:13:41 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 |
On 3/26/19 6:57 AM, Peter Maydell wrote:
> I'm pretty sure we talked about this on IRC at some point,
> but for the record: I believe the relevent ELF ABI spec docs
> are now public that have the changes that describe how ELF
> executables are marked up to indicate which parts should be
> loaded into guarded pages. The rest of the userspace ABI
> is likely to just be a new mmap() flag. So I think we're
> better off implementing that (possibly still guarded by
> an x- property if it's not finalized yet.)
We still don't know what the mmap flag will be.
You're right that the elf abi is sufficient to
build statically linked test cases, though, which
is all we wanted here.
r~