// Copyright 2016 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.

#include "textflag.h"

TEXT _rt0_s390x_linux(SB), NOSPLIT|NOFRAME, $0
	// In a statically linked binary, the stack contains argc,
	// argv as argc string pointers followed by a NULL, envv as a
	// sequence of string pointers followed by a NULL, and auxv.
	// There is no TLS base pointer.

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "textflag.h"

// func publicationBarrier()
TEXT ·publicationBarrier(SB),NOSPLIT|NOFRAME,$0-0
	FENCE

// in the context that starts executing at sigresume.
TEXT runtime·sigresume(SB),NOSPLIT|NOFRAME,$0
	MOVQ	R8, SP
	JMP	R9

TEXT runtime·exceptiontramp(SB),NOSPLIT|NOFRAME,$0
	// PExceptionPointers already on CX
	MOVQ	$const_callbackVEH, DX
	JMP	sigtramp<>(SB)

TEXT runtime·firstcontinuetramp(SB),NOSPLIT|NOFRAME,$0-0
	// PExceptionPointers already on CX
	MOVQ	$const_callbackFirstVCH, DX
	JMP	sigtramp<>(SB)

// Copyright 2023 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.

#include "textflag.h"

TEXT	·getFP(SB), NOSPLIT|NOFRAME, $0-8
	MOVD	R29, ret+0(FP)

// license that can be found in the LICENSE file.

#include "textflag.h"
#include "cgo/abi_arm64.h"

// On FreeBSD argc/argv are passed in R0, not RSP
TEXT _rt0_arm64_freebsd(SB),NOSPLIT|NOFRAME,$0
	ADD	$8, R0, R1	// argv
	MOVD	0(R0), R0	// argc
	BL	main(SB)

// When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded.
TEXT _rt0_arm64_freebsd_lib(SB),NOSPLIT,$184

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "textflag.h"

// func syncIcache(p uintptr)
TEXT main·syncIcache(SB), NOSPLIT|NOFRAME, $0-0
	SYNC
	MOVD (R3), R3
	ICBI (R3)
	ISYNC

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

TEXT ·Count<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-40
	// R3 = byte array pointer
	// R4 = length
	// R6 = byte to count
	MTVRD	R6, V1		// move compare byte
	MOVD	R6, R5
	VSPLTB	$7, V1, V1	// replicate byte across V1
	BR	countbytebody<>(SB)

TEXT ·CountString<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-32
	// R3 = byte array pointer
	// R4 = length
	// R5 = byte to count

TEXT runtime·memequal(SB),NOSPLIT|NOFRAME,$0-13
	MOVW	a+0(FP), R0
	MOVW	b+4(FP), R2
	CMP	R0, R2
	B.EQ	eq
	MOVW	size+8(FP), R1
	CMP	$0, R1
	B.EQ	eq		// short path to handle 0-byte case
	MOVW	$ret+12(FP), R7
	B	memeqbody<>(SB)
eq:
	MOVW	$1, R0
	MOVB	R0, ret+12(FP)
	RET

// memequal_varlen(a, b unsafe.Pointer) bool
TEXT runtime·memequal_varlen(SB),NOSPLIT|NOFRAME,$0-9
	MOVW	a+0(FP), R0
	MOVW	b+4(FP), R2

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

TEXT ·Compare<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-56
	// X10 = a_base
	// X11 = a_len
	// X12 = a_cap (unused)
	// X13 = b_base (want in X12)
	// X14 = b_len (want in X13)
	// X15 = b_cap (unused)
	MOV	X13, X12
	MOV	X14, X13
	JMP	compare<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-40
	// X10 = a_base
	// X11 = a_len
	// X12 = b_base
	// X13 = b_len

//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,
	// argv as argc string pointers followed by a NULL, envv as a
	// sequence of string pointers followed by a NULL, and auxv.
	// There is no TLS base pointer.