JAL	runtime·cgocallbackg(SB)

	// Restore g->sched (== m->curg->sched) from saved values.
	MOVV	0(R29), R4
	MOVV	R4, (g_sched+gobuf_pc)(g)
	MOVV	$(24+8)(R29), R2	// must match frame size
	MOVV	R2, (g_sched+gobuf_sp)(g)

	// Switch back to m->g0's stack and restore m->g0->sched.sp.
	// (Unlike m->curg, the g0 goroutine never uses sched.pc,
	// so we do not have to restore it.)
	MOVV	g_m(g), R3
	MOVV	m_g0(R3), g

	MOV	$1, X5
	FENCE
	MOVW	X5, ·Baton(SB)
	FENCE

	// Wait for setgid completion
loop:
	FENCE
	MOVW	·Baton(SB), X5
	OR	X6, X6, X6	// hint that we're in a spin loop
	BNE	ZERO, X5, loop
	FENCE

	// Restore stack
	ADD	$(-1024*8), X2

    cases, with little/no downsides. It's generally considered a drop-in replacement for
    ROUND_ROBIN.
    
    `ROUND_ROBIN` will continue to be supported if explicitly specified. To restore
    `ROUND_ROBIN` as the default, set the istiod environment variable

# Save off old GOCOVERDIR setting
env SAVEGOCOVERDIR=$GOCOVERDIR

# Execute.
mkdir $WORK/covdata
env GOCOVERDIR=$WORK/covdata
exec $WORK/modex.exe

# Restore previous GOCOVERDIR setting
env GOCOVERDIR=$SAVEGOCOVERDIR

# Examine the result.
go tool covdata percent -i=$WORK/covdata
stdout 'coverage: 100.0% of statements'

	JAL	runtime·spillArgs(SB)
	MOVV	REGCTXT, 32(R3) // save REGCTXT > args of moveMakeFuncArgPtrs < LOCAL_REGARGS

	MOVV	REGCTXT, R4
	MOVV	R25, R5
	JAL	·moveMakeFuncArgPtrs<ABIInternal>(SB)
	MOVV	32(R3), REGCTXT // restore REGCTXT

	MOVV	REGCTXT, 8(R3)
	MOVV	$argframe+0(FP), R20
	MOVV	R20, 16(R3)
	MOVV	R0, LOCAL_RETVALID(R3)
	ADDV	$LOCAL_RETVALID, R3, R20
	MOVV	R20, 24(R3)
	ADDV	$LOCAL_REGARGS, R3, R20
	MOVV	R20, 32(R3)

	MOVW	$1, R12
	DBAR
	MOVW	R12, ·Baton(SB)
	DBAR

	// Wait for setgid completion
loop:
	DBAR
	MOVW	·Baton(SB), R12
	OR	R13, R13, R13	// hint that we're in a spin loop
	BNE	R12, loop
	DBAR

	// Restore stack
	ADDV	$(-1024*8), R3

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
TEXT ·Syscall6<ABIInternal>(SB),NOSPLIT,$0-80
	MOVD	R3, R10	// Move syscall number to R10. SYSCALL will move it R0, and restore R0.
	MOVD	R4, R3
	MOVD	R5, R4
	MOVD	R6, R5
	MOVD	R7, R6
	MOVD	R8, R7
	MOVD	R9, R8
	SYSCALL	R10
	MOVD	$-1, R6
	ISEL	CR0SO, R3, R0, R5 // errno = (error) ? R3 : 0

	MOVD	R11, FIXED_FRAME+32(R1)	// save R11
	MOVD	R11, FIXED_FRAME+0(R1)	// arg for moveMakeFuncArgPtrs
	MOVD	R20, FIXED_FRAME+8(R1)	// arg for local args
	CALL	·moveMakeFuncArgPtrs(SB)
	MOVD	FIXED_FRAME+32(R1), R11	// restore R11 ctxt
	MOVD	R11, FIXED_FRAME+0(R1)	// ctxt (arg0)
	MOVD	$argframe+0(FP), R3	// save arg to callArg
	MOVD	R3, FIXED_FRAME+8(R1)	// frame (arg1)
	ADD	$LOCAL_RETVALID, R1, R3 // addr of return flag

	ADDQ	$(1024 * 8), SP

	// Ask signaller to setgid
	MOVL	$1, ·Baton(SB)

	// Wait for setgid completion
loop:
	PAUSE
	MOVL	·Baton(SB), AX
	CMPL	AX, $0
	JNE	loop

	// Restore stack
	SUBQ	$(1024 * 8), SP

  AbstractTensorPtr tensor(ctx->CreateStringScalar(s));
  if (tensor.get() == nullptr) {
    return errors::Internal(
        "Failed to create scalar string tensor for checkpoint restore");
  }

  out->reset(ctx->CreateLocalHandle(tensor.get()));
  return Status();
}

// Creates a Rank 1 string tensorhandle containing a single string `s`