// Copyright 2022 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 linux && (mips64 || mips64le)

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
	MOVV	num+0(FP), R2	// syscall entry
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6

// Copyright 2019 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 mips64 || mips64le

#include "go_asm.h"
#include "textflag.h"

TEXT ·Compare(SB),NOSPLIT,$0-56
	MOVV	a_base+0(FP), R3
	MOVV	b_base+24(FP), R4
	MOVV	a_len+8(FP), R1
	MOVV	b_len+32(FP), R2
	MOVV	$ret+48(FP), R9
	JMP	cmpbody<>(SB)

// Copyright 2015 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 linux && (mips64 || mips64le)

#include "textflag.h"

TEXT _rt0_mips64_linux(SB),NOSPLIT,$0
	JMP	_main<>(SB)

TEXT _rt0_mips64le_linux(SB),NOSPLIT,$0
	JMP	_main<>(SB)

TEXT _main<>(SB),NOSPLIT|NOFRAME,$0
	// In a statically linked binary, the stack contains argc,

// Copyright 2014 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 linux && (mips64 || mips64le)

#include "textflag.h"

//
// System calls for mips64, Linux
//

// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6

	case "arm":
		arch, theArch = arm.Init()
	case "arm64":
		arch, theArch = arm64.Init()
	case "loong64":
		arch, theArch = loong64.Init()
	case "mips", "mipsle":
		arch, theArch = mips.Init()
	case "mips64", "mips64le":
		arch, theArch = mips64.Init()
	case "ppc64", "ppc64le":
		arch, theArch = ppc64.Init()
	case "riscv64":
		arch, theArch = riscv64.Init()
	case "s390x":
		arch, theArch = s390x.Init()

	switch runtime.GOARCH {
	case "386", "amd64", "amd64p32",
		"alpha",
		"arm", "arm64",
		"loong64",
		"mipsle", "mips64le", "mips64p32le",
		"nios2",
		"ppc64le",
		"riscv", "riscv64",
		"sh":
		return littleEndian{}
	case "armbe", "arm64be",
		"m68k",
		"mips", "mips64", "mips64p32",
		"ppc", "ppc64",
		"s390", "s390x",
		"shbe",
		"sparc", "sparc64":
		return bigEndian{}
	}

// 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 linux && (amd64 || arm64 || loong64 || mips64 || mips64le || ppc64 || ppc64le || riscv64 || s390x)

package runtime

// ELF64 structure definitions for use by the vDSO loader

type elfSym struct {
	st_name  uint32
	st_info  byte
	st_other byte
	st_shndx uint16

	"amd64":       true,
	"amd64p32":    true,
	"arm":         true,
	"armbe":       true,
	"arm64":       true,
	"arm64be":     true,
	"loong64":     true,
	"mips":        true,
	"mipsle":      true,
	"mips64":      true,
	"mips64le":    true,
	"mips64p32":   true,
	"mips64p32le": true,
	"ppc":         true,
	"ppc64":       true,
	"ppc64le":     true,
	"riscv":       true,
	"riscv64":     true,
	"s390":        true,

	case "ppc64":
		binary.BigEndian.PutUint32(ill, 0xf8000000) // MOVD R0, (R0)
	case "ppc64le":
		binary.LittleEndian.PutUint32(ill, 0xf8000000) // MOVD R0, (R0)
	case "mips", "mips64":
		binary.BigEndian.PutUint32(ill, 0xfc000000) // MOVV R0, (R0)
	case "mipsle", "mips64le":
		binary.LittleEndian.PutUint32(ill, 0xfc000000) // MOVV R0, (R0)
	case "s390x":
		ill = append(ill[:0], 0xa7, 0x09, 0x00, 0x00)         // MOVD $0, R0

		}
	}
}

func mustHaveDisasm(t *testing.T) {
	switch runtime.GOARCH {
	case "loong64":
		t.Skipf("skipping on %s.", runtime.GOARCH)
	case "mips", "mipsle", "mips64", "mips64le":
		t.Skipf("skipping on %s, issue 12559", runtime.GOARCH)
	case "riscv64":
		t.Skipf("skipping on %s, issue 36738", runtime.GOARCH)
	case "s390x":
		t.Skipf("skipping on %s, issue 15255", runtime.GOARCH)
	}