From 418476ecb925e5d58ba9c22928a4e37dc30909df Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 20 Nov 2020 19:28:53 +0100
Subject: pkg/ifuzz/iset: rename ifuzzimpl to iset

ifuzzimpl is too lenghty and too clumsy on my taste
(nm/vmimpl worked better b/c it's shorter and used less).
I've tried to come up with something shorter and nicer.
We could use "insn" as a common name for "instruction" in ifuzz,
but it's a commonly used name already so would cause lots of conflicts.
"iset" is somewhat descriptive, short and nice.
---
 pkg/ifuzz/ifuzzimpl/ifuzzimpl.go | 101 ---------------------------------------
 1 file changed, 101 deletions(-)
 delete mode 100644 pkg/ifuzz/ifuzzimpl/ifuzzimpl.go

(limited to 'pkg/ifuzz/ifuzzimpl/ifuzzimpl.go')

diff --git a/pkg/ifuzz/ifuzzimpl/ifuzzimpl.go b/pkg/ifuzz/ifuzzimpl/ifuzzimpl.go
deleted file mode 100644
index 32f285250..000000000
--- a/pkg/ifuzz/ifuzzimpl/ifuzzimpl.go
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright 2017 syzkaller project authors. All rights reserved.
-// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
-
-package ifuzzimpl
-
-import (
-	"math/rand"
-)
-
-const (
-	ArchX86     = "x86"
-	ArchPowerPC = "powerpc"
-)
-
-var Arches = make(map[string]InsnSet)
-
-type (
-	Mode int
-	Type int
-)
-
-type Insn interface {
-	Info() (name string, mode Mode, pseudo, priv bool)
-	Encode(cfg *Config, r *rand.Rand) []byte
-}
-
-type InsnSet interface {
-	GetInsns(mode Mode, typ Type) []Insn
-	Decode(mode Mode, text []byte) (int, error)
-	DecodeExt(mode Mode, text []byte) (int, error) // XED, to keep ifuzz_test happy
-}
-
-type Config struct {
-	Arch       string
-	Len        int         // number of instructions to generate
-	Mode       Mode        // one of ModeXXX
-	Priv       bool        // generate CPL=0 instructions (x86), HV/!PR mode (PPC)
-	Exec       bool        // generate instructions sequences interesting for execution
-	MemRegions []MemRegion // generated instructions will reference these regions
-}
-
-type MemRegion struct {
-	Start uint64
-	Size  uint64
-}
-
-const (
-	ModeLong64 Mode = iota
-	ModeProt32
-	ModeProt16
-	ModeReal16
-	ModeLast
-)
-
-const (
-	TypeExec Type = iota
-	TypePriv
-	TypeUser
-	TypeAll
-	TypeLast
-)
-
-var SpecialNumbers = [...]uint64{0, 1 << 15, 1 << 16, 1 << 31, 1 << 32, 1 << 47, 1 << 47, 1 << 63}
-
-type ModeInsns [ModeLast][TypeLast][]Insn
-
-func (modeInsns *ModeInsns) Add(insn Insn) {
-	_, mode, pseudo, priv := insn.Info()
-	for m := Mode(0); m < ModeLast; m++ {
-		if mode&(1<<uint(m)) == 0 {
-			continue
-		}
-		set := &modeInsns[m]
-		if pseudo {
-			set[TypeExec] = append(set[TypeExec], insn)
-		} else if priv {
-			set[TypePriv] = append(set[TypePriv], insn)
-			set[TypeAll] = append(set[TypeAll], insn)
-		} else {
-			set[TypeUser] = append(set[TypeUser], insn)
-			set[TypeAll] = append(set[TypeAll], insn)
-		}
-	}
-}
-
-func (cfg *Config) IsCompatible(insn Insn) bool {
-	_, mode, pseudo, priv := insn.Info()
-	if cfg.Mode < 0 || cfg.Mode >= ModeLast {
-		panic("bad mode")
-	}
-	if priv && !cfg.Priv {
-		return false
-	}
-	if pseudo && !cfg.Exec {
-		return false
-	}
-	if mode&(1<<uint(cfg.Mode)) == 0 {
-		return false
-	}
-	return true
-}
-- 
cgit mrf-deployment