// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !purego && (amd64 || arm64 || ppc64le || s390x)

package nistec

import (
	"fmt"
	"testing"
)

func TestP256PrecomputedTable(t *testing.T) {
	base := NewP256Point().SetGenerator()

	for i := 0; i < 43; i++ {
		t.Run(fmt.Sprintf("table[%d]", i), func(t *testing.T) {

	offsetX86HasAVX2   = unsafe.Offsetof(cpu.X86.HasAVX2)
	offsetX86HasPOPCNT = unsafe.Offsetof(cpu.X86.HasPOPCNT)

	offsetS390xHasVX = unsafe.Offsetof(cpu.S390X.HasVX)

	offsetPPC64HasPOWER9 = unsafe.Offsetof(cpu.PPC64.IsPOWER9)
)

// MaxLen is the maximum length of the string to be searched for (argument b) in Index.
// If MaxLen is not 0, make sure MaxLen >= 4.
var MaxLen int

    TARGET_ARCH=arm64
elif [[ ${LOCAL_ARCH} == armv* ]]; then
    TARGET_ARCH=arm
elif [[ ${LOCAL_ARCH} == s390x ]]; then
    TARGET_ARCH=s390x
elif [[ ${LOCAL_ARCH} == ppc64le ]]; then
    TARGET_ARCH=ppc64le
else
    echo "This system's architecture, ${LOCAL_ARCH}, isn't supported"
    exit 1
fi

LOCAL_OS=$(uname)

# Pass environment set target operating-system to build system

## explicit; go 1.13
github.com/ianlancetaylor/demangle
# golang.org/x/arch v0.8.0
## explicit; go 1.18
golang.org/x/arch/arm/armasm
golang.org/x/arch/arm64/arm64asm
golang.org/x/arch/ppc64/ppc64asm
golang.org/x/arch/x86/x86asm
# golang.org/x/build v0.0.0-20240603162849-5dfbda438323
## explicit; go 1.21
golang.org/x/build/relnote
# golang.org/x/mod v0.18.0
## explicit; go 1.18

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build (amd64 || arm64 || ppc64le) && linux

package runtime

import (
	"internal/abi"
	"internal/stringslite"
	"unsafe"
)

// InjectDebugCall injects a debugger call to fn into g. regArgs must
// contain any arguments to fn that are passed in registers, according

// go run mkasm.go openbsd ppc64
// Code generated by the command above; DO NOT EDIT.
#include "textflag.h"
TEXT ·libc_getgroups_trampoline(SB),NOSPLIT,$0-0
	CALL	libc_getgroups(SB)
	RET
TEXT ·libc_setgroups_trampoline(SB),NOSPLIT,$0-0
	CALL	libc_setgroups(SB)
	RET
TEXT ·libc_wait4_trampoline(SB),NOSPLIT,$0-0
	CALL	libc_wait4(SB)
	RET
TEXT ·libc_accept_trampoline(SB),NOSPLIT,$0-0
	CALL	libc_accept(SB)
	RET

// # details see http://www.openssl.org/~appro/cryptogams/.
// # ====================================================================

// Code for the perl script that generates the ppc64 assembler
// can be found in the cryptogams repository at the link below. It is based on
// the original from openssl.

// https://github.com/dot-asm/cryptogams/commit/a60f5b50ed908e91

	tv.Sec = int32(nsec / 1e9)
	return
}

func nsec() int64 {
	var scratch int64

	r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
	// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
	if r0 == 0 {
		return scratch
	}
	return int64(r0)
}

func Gettimeofday(tv *Timeval) error {
	nsec := nsec()
	*tv = NsecToTimeval(nsec)
	return nil
}