Bug 241542

Summary: emulators/qemu-user-static: Add support for reading AArch64 Instruction Set Attribute/Processor Feature registers
Product: Ports & Packages Reporter: Dmitri Goutnik <dmgk>
Component: Individual Port(s)Assignee: Sean Bruno <sbruno>
Status: Closed DUPLICATE    
Severity: Affects Only Me CC: mikael
Priority: --- Flags: bugzilla: maintainer-feedback? (sbruno)
Version: Latest   
Hardware: Any   
OS: Any   

Description Dmitri Goutnik freebsd_committer freebsd_triage 2019-10-28 15:04:49 UTC 
Support for freebsd/arm64 is in the process of getting merged by the Go Project and while the build works on real hardware, it currently fails with signal 4 Illegal Instruction under qemu-user-static emulation of aarch64 due to the missing support for reading ID_AA64ISAR{0,1}_EL1 and ID_AA64PFR0_EL1 registers [1], [2]

[1] https://github.com/golang/go/blob/master/src/runtime/os_freebsd_arm64.go#L40
[2] https://github.com/golang/go/blob/master/src/runtime/sys_freebsd_arm64.s#L521
Comment 1 Mikael Urankar freebsd_committer freebsd_triage 2019-10-28 16:44:07 UTC 
duplicate bug #240037
Comment 2 Dmitri Goutnik freebsd_committer freebsd_triage 2019-10-28 20:22:35 UTC 

*** This bug has been marked as a duplicate of bug 240037 ***