Add missing constant for Android

[yujincheng08]

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[tgross35]

@maurer would you mind taking a look at this?

[yujincheng08]

r? @maurer

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[maurer]

This looks fine to me, the reason those constants were 64-bit only before was as a hacky form of version detection. However, now that our min API level is 21, we shouldn't need to worry about that, and making them available to 32-bit should be appropriate. The rest of this appears to be appropriate constant migration.

The only thing I'll note is that since this bumps the NDK to the latest stable (r27), we'll want to bump it in rustc as well before integrating this change there after it lands. (I don't think it'll be as troublesome as last time, but we'll have to do the whole song and dance with updating the mirror again.)

[yujincheng08]

thanks @maurer

r? @tgross35 could you check if it's now okay to merge it?

[bors]

:umbrella: The latest upstream changes (presumably #3777) made this pull request unmergeable. Please resolve the merge conflicts.

[yujincheng08]

@tgross35 hi, would you mind taking a look at this?

[tgross35]

Please be patient with reviews, there are a lot of open PRs.

Relevant headers for comparison:

• https://android.googlesource.com/platform/bionic/+/refs/tags/android-14.0.0_r61/libc/kernel/uapi/linux/auxvec.h
• https://android.googlesource.com/platform/bionic/+/refs/tags/android-14.0.0_r61/libc/kernel/uapi/asm-arm/asm/auxvec.h
• https://android.googlesource.com/platform/bionic/+/refs/tags/android-14.0.0_r61/libc/kernel/uapi/asm-arm64/asm/auxvec.h
• https://android.googlesource.com/platform/bionic/+/refs/tags/android-14.0.0_r61/libc/kernel/uapi/asm-riscv/asm/auxvec.h
• https://android.googlesource.com/platform/bionic/+/refs/tags/android-14.0.0_r61/libc/kernel/uapi/asm-x86/asm/auxvec.h

A few questions below then LGTM. Thanks Matthew for taking a look too.

@rustbot author

[yujincheng08]

@rustbot ready

[yujincheng08]

@rustbot author

[yujincheng08]

@rustbot ready

[tgross35]

Oh I only meant to start with the API added here for the risc-v file. But no harm of course :)

Please rebase to drop the merge commit, then looks good to me.

[yujincheng08]

Rebased