all: remove the nacl port (part 2, amd64p32 + toolchain)

This is part two if the nacl removal. Part 1 was CL 199499.

This CL removes amd64p32 support, which might be useful in the future
if we implement the x32 ABI. It also removes the nacl bits in the
toolchain, and some remaining nacl bits.

Updates #30439

Change-Id: I2475d5bb066d1b474e00e40d95b520e7c2e286e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/200077
Reviewed-by: Ian Lance Taylor <iant@golang.org>

3 files changed, 0 insertions, 206 deletions

diff --git a/src/runtime/internal/atomic/asm_amd64p32.s b/src/runtime/internal/atomic/asm_amd64p32.s
deleted file mode 100644
index 35b5ef205e..0000000000
--- a/src/runtime/internal/atomic/asm_amd64p32.s
+++ /dev/null
@@ -1,159 +0,0 @@
-// 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.
-
-#include "textflag.h"
-
-// bool Cas(int32 *val, int32 old, int32 new)
-// Atomically:
-//	if(*val == old){
-//		*val = new;
-//		return 1;
-//	} else
-//		return 0;
-TEXT runtime∕internal∕atomic·Cas(SB), NOSPLIT, $0-17
-	MOVL	ptr+0(FP), BX
-	MOVL	old+4(FP), AX
-	MOVL	new+8(FP), CX
-	LOCK
-	CMPXCHGL	CX, 0(BX)
-	SETEQ	ret+16(FP)
-	RET
-
-TEXT runtime∕internal∕atomic·Casuintptr(SB), NOSPLIT, $0-17
-	JMP	runtime∕internal∕atomic·Cas(SB)
-
-TEXT runtime∕internal∕atomic·CasRel(SB), NOSPLIT, $0-17
-	JMP	runtime∕internal∕atomic·Cas(SB)
-
-TEXT runtime∕internal∕atomic·Loaduintptr(SB), NOSPLIT, $0-12
-	JMP	runtime∕internal∕atomic·Load(SB)
-
-TEXT runtime∕internal∕atomic·Loaduint(SB), NOSPLIT, $0-12
-	JMP	runtime∕internal∕atomic·Load(SB)
-
-TEXT runtime∕internal∕atomic·Storeuintptr(SB), NOSPLIT, $0-8
-	JMP	runtime∕internal∕atomic·Store(SB)
-
-TEXT runtime∕internal∕atomic·Loadint64(SB), NOSPLIT, $0-16
-	JMP	runtime∕internal∕atomic·Load64(SB)
-
-TEXT runtime∕internal∕atomic·Xaddint64(SB), NOSPLIT, $0-24
-	JMP	runtime∕internal∕atomic·Xadd64(SB)
-
-// bool	runtime∕internal∕atomic·cas64(uint64 *val, uint64 old, uint64 new)
-// Atomically:
-//	if(*val == *old){
-//		*val = new;
-//		return 1;
-//	} else {
-//		return 0;
-//	}
-TEXT runtime∕internal∕atomic·Cas64(SB), NOSPLIT, $0-25
-	MOVL	ptr+0(FP), BX
-	MOVQ	old+8(FP), AX
-	MOVQ	new+16(FP), CX
-	LOCK
-	CMPXCHGQ	CX, 0(BX)
-	SETEQ	ret+24(FP)
-	RET
-
-// bool Casp1(void **val, void *old, void *new)
-// Atomically:
-//	if(*val == old){
-//		*val = new;
-//		return 1;
-//	} else
-//		return 0;
-TEXT runtime∕internal∕atomic·Casp1(SB), NOSPLIT, $0-17
-	MOVL	ptr+0(FP), BX
-	MOVL	old+4(FP), AX
-	MOVL	new+8(FP), CX
-	LOCK
-	CMPXCHGL	CX, 0(BX)
-	SETEQ	ret+16(FP)
-	RET
-
-// uint32 Xadd(uint32 volatile *val, int32 delta)
-// Atomically:
-//	*val += delta;
-//	return *val;
-TEXT runtime∕internal∕atomic·Xadd(SB), NOSPLIT, $0-12
-	MOVL	ptr+0(FP), BX
-	MOVL	delta+4(FP), AX
-	MOVL	AX, CX
-	LOCK
-	XADDL	AX, 0(BX)
-	ADDL	CX, AX
-	MOVL	AX, ret+8(FP)
-	RET
-
-TEXT runtime∕internal∕atomic·Xadd64(SB), NOSPLIT, $0-24
-	MOVL	ptr+0(FP), BX
-	MOVQ	delta+8(FP), AX
-	MOVQ	AX, CX
-	LOCK
-	XADDQ	AX, 0(BX)
-	ADDQ	CX, AX
-	MOVQ	AX, ret+16(FP)
-	RET
-
-TEXT runtime∕internal∕atomic·Xadduintptr(SB), NOSPLIT, $0-12
-	JMP	runtime∕internal∕atomic·Xadd(SB)
-
-TEXT runtime∕internal∕atomic·Xchg(SB), NOSPLIT, $0-12
-	MOVL	ptr+0(FP), BX
-	MOVL	new+4(FP), AX
-	XCHGL	AX, 0(BX)
-	MOVL	AX, ret+8(FP)
-	RET
-
-TEXT runtime∕internal∕atomic·Xchg64(SB), NOSPLIT, $0-24
-	MOVL	ptr+0(FP), BX
-	MOVQ	new+8(FP), AX
-	TESTL	$7, BX
-	JZ	2(PC)
-	MOVL	0, BX // crash when unaligned
-	XCHGQ	AX, 0(BX)
-	MOVQ	AX, ret+16(FP)
-	RET
-
-TEXT runtime∕internal∕atomic·Xchguintptr(SB), NOSPLIT, $0-12
-	JMP	runtime∕internal∕atomic·Xchg(SB)
-
-TEXT runtime∕internal∕atomic·StorepNoWB(SB), NOSPLIT, $0-8
-	MOVL	ptr+0(FP), BX
-	MOVL	val+4(FP), AX
-	XCHGL	AX, 0(BX)
-	RET
-
-TEXT runtime∕internal∕atomic·Store(SB), NOSPLIT, $0-8
-	MOVL	ptr+0(FP), BX
-	MOVL	val+4(FP), AX
-	XCHGL	AX, 0(BX)
-	RET
-
-TEXT runtime∕internal∕atomic·StoreRel(SB), NOSPLIT, $0-8
-	JMP	runtime∕internal∕atomic·Store(SB)
-
-TEXT runtime∕internal∕atomic·Store64(SB), NOSPLIT, $0-16
-	MOVL	ptr+0(FP), BX
-	MOVQ	val+8(FP), AX
-	XCHGQ	AX, 0(BX)
-	RET
-
-// void	runtime∕internal∕atomic·Or8(byte volatile*, byte);
-TEXT runtime∕internal∕atomic·Or8(SB), NOSPLIT, $0-5
-	MOVL	ptr+0(FP), BX
-	MOVB	val+4(FP), AX
-	LOCK
-	ORB	AX, 0(BX)
-	RET
-
-// void	runtime∕internal∕atomic·And8(byte volatile*, byte);
-TEXT runtime∕internal∕atomic·And8(SB), NOSPLIT, $0-5
-	MOVL	ptr+0(FP), BX
-	MOVB	val+4(FP), AX
-	LOCK
-	ANDB	AX, 0(BX)
-	RET
diff --git a/src/runtime/internal/sys/arch_amd64p32.go b/src/runtime/internal/sys/arch_amd64p32.go
deleted file mode 100644
index d51c8a5354..0000000000
--- a/src/runtime/internal/sys/arch_amd64p32.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// 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.
-
-package sys
-
-const (
-	ArchFamily          = AMD64
-	BigEndian           = false
-	DefaultPhysPageSize = 65536*GoosNacl + 4096*(1-GoosNacl)
-	PCQuantum           = 1
-	Int64Align          = 8
-	MinFrameSize        = 0
-)
-
-type Uintreg uint64
diff --git a/src/runtime/internal/sys/zgoarch_amd64p32.go b/src/runtime/internal/sys/zgoarch_amd64p32.go
deleted file mode 100644
index 13dc2e756d..0000000000
--- a/src/runtime/internal/sys/zgoarch_amd64p32.go
+++ /dev/null
@@ -1,31 +0,0 @@
-// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
-
-// +build amd64p32
-
-package sys
-
-const GOARCH = `amd64p32`
-
-const Goarch386 = 0
-const GoarchAmd64 = 0
-const GoarchAmd64p32 = 1
-const GoarchArm = 0
-const GoarchArmbe = 0
-const GoarchArm64 = 0
-const GoarchArm64be = 0
-const GoarchPpc64 = 0
-const GoarchPpc64le = 0
-const GoarchMips = 0
-const GoarchMipsle = 0
-const GoarchMips64 = 0
-const GoarchMips64le = 0
-const GoarchMips64p32 = 0
-const GoarchMips64p32le = 0
-const GoarchPpc = 0
-const GoarchRiscv = 0
-const GoarchRiscv64 = 0
-const GoarchS390 = 0
-const GoarchS390x = 0
-const GoarchSparc = 0
-const GoarchSparc64 = 0
-const GoarchWasm = 0