retguard for amd64 system calls
by from OpenBSD Journal on (#67PR2)
Todd Mortimer (mortimer@) hascommitted(to -current)retguardfor amd64 system calls:
CVSROOT:/cvsModule name:srcChanges by:mortimer@cvs.openbsd.org2023/01/10 18:55:18Modified files:lib/libc/arch/amd64: SYS.h lib/libc/arch/amd64/sys: Ovfork.S brk.S sbrk.S sigpending.S sigprocmask.S sigsuspend.S tfork_thread.S libexec/ld.so/amd64: SYS.h Log message:Add retguard to amd64 syscalls.Since we got rid of padded syscalls we have enough registers to do this.ok deraadt@ ok kettenis@