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Differential D15834

arm64 linuxulator: arm64 linux64 sysvec
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Authored by emaste on Jun 15 2018, 8:39 PM.

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Reviewers

manu
andrew

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rS335639: Initial arm64 linuxulator linux_sysvec

Summary

Combined with D15832 this provides a minimal arm64 linuxulator implementation capable of executing Linux 'hello world' binaries

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Repository

rS FreeBSD src repository - subversion

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Event Timeline

emaste created this revision.Jun 15 2018, 8:39 PM

Herald added a reviewer: manu. · View Herald TranscriptJun 15 2018, 8:39 PM

Herald added a subscriber: andrew. · View Herald Transcript

emaste added a reviewer: andrew.Jun 15 2018, 8:40 PM

Minor tidyup

andrew accepted this revision.Jun 19 2018, 8:10 AM

This revision is now accepted and ready to land.Jun 19 2018, 8:10 AM

emaste added a subscriber: brooks.Jun 19 2018, 1:03 PM

andrew added inline comments.Jun 19 2018, 1:48 PM

sys/arm64/linux/linux_sysvec.c
138 ↗	(On Diff #44041)	I think you can extract the needed buts from `cpu_fetch_syscall_args`. We need to memcpy the args, set the code from x8, then set callp as in amd64.
148 ↗	(On Diff #44041)	We need to update cpu_set_syscall_retval to us SV_ABI_ERRNO in the default case to translate Linux errno values.

emaste mentioned this in D15952: Fix the Linux kernel version number calculation.Jun 21 2018, 8:02 PM

Closed by commit rS335639: Initial arm64 linuxulator linux_sysvec (authored by emaste). · Explain WhyJun 25 2018, 2:12 PM

This revision was automatically updated to reflect the committed changes.

Herald added a subscriber: imp. · View Herald TranscriptJun 25 2018, 2:12 PM

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Path

Size

head/

sys/

arm64/

linux/

563 lines

Diff 44420

head/sys/arm64/linux/linux_sysvec.c

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