testutil

func AddrOfGetpid ¶

func AddrOfGetpid() uintptr

AddrOfGetpid returns the address of Getpid.

In Go 1.17+, Go references to assembly functions resolve to an ABIInternal wrapper function rather than the function itself. We must reference from assembly to get the ABI0 (i.e., primary) address.

func AddrOfHaltLoop ¶

func AddrOfHaltLoop() uintptr

AddrOfHaltLoop returns the address of a function that immediately halts and loops.

func AddrOfSpinLoop ¶

func AddrOfSpinLoop() uintptr

AddrOfSpinLoop returns the address of a function that spins on the CPU.

func AddrOfSyscallLoop ¶

func AddrOfSyscallLoop() uintptr

AddrOfSyscallLoop returns the address of a function that executes a syscall and loops.

func AddrOfTouch ¶

func AddrOfTouch() uintptr

AddrOfTouch returns the address of a function that touches the value in the first register.

func AddrOfTwiddleRegsFault ¶

func AddrOfTwiddleRegsFault() uintptr

AddrOfTwiddleRegsFault returns the address of a function that twiddles registers then faults.

func AddrOfTwiddleRegsSyscall ¶

func AddrOfTwiddleRegsSyscall() uintptr

AddrOfTwiddleRegsSyscall returns the address of a function that twiddles registers then executes a syscall.

func AddrOfTwiddleSegments ¶

func AddrOfTwiddleSegments() uintptr

AddrOfTwiddleSegments return the address of a function that reads segments into known registers.

func CheckTestRegs ¶

func CheckTestRegs(regs *arch.Registers, full bool) (err error)

CheckTestRegs checks that registers were twiddled per TwiddleRegs.

func CheckTestSegments ¶

func CheckTestSegments(regs *arch.Registers) (err error)

CheckTestSegments checks that registers were twiddled per TwiddleSegments.

func FloatingPointWorks ¶

func FloatingPointWorks() bool

FloatingPointWorks is a floating point test.

It returns true or false.

func Getpid ¶

func Getpid()

Getpid executes a trivial system call.

func RewindSyscall ¶

func RewindSyscall(regs *arch.Registers)

RewindSyscall rewinds a syscall RIP.

func SetTestRegs ¶

func SetTestRegs(regs *arch.Registers)

SetTestRegs initializes registers to known values.

func SetTestSegments ¶

func SetTestSegments(regs *arch.Registers)

SetTestSegments initializes segments to known values.

func SetTestTarget ¶

func SetTestTarget(regs *arch.Registers, fn uintptr)

SetTestTarget sets the rip appropriately.

func SetTouchTarget ¶

func SetTouchTarget(regs *arch.Registers, target *uintptr)

SetTouchTarget sets rax appropriately.