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.

2 files changed, 18 insertions, 18 deletions

diff --git a/pkg/ifuzz/powerpc/powerpc.go b/pkg/ifuzz/powerpc/powerpc.go
index a78e0a251..bee20850d 100644
--- a/pkg/ifuzz/powerpc/powerpc.go
+++ b/pkg/ifuzz/powerpc/powerpc.go
@@ -18,7 +18,7 @@ import (
 	"fmt"
 	"math/rand"
 
-	"github.com/google/syzkaller/pkg/ifuzz/ifuzzimpl"
+	"github.com/google/syzkaller/pkg/ifuzz/iset"
 )
 
 type InsnBits struct {
@@ -35,20 +35,20 @@ type Insn struct {
 	Opcode uint32
 	Mask   uint32
 
-	generator func(cfg *ifuzzimpl.Config, r *rand.Rand) []byte
+	generator func(cfg *iset.Config, r *rand.Rand) []byte
 }
 
 type InsnSet struct {
 	Insns     []*Insn
-	modeInsns ifuzzimpl.ModeInsns
+	modeInsns iset.ModeInsns
 	insnMap   map[string]*Insn
 }
 
-func (insnset *InsnSet) GetInsns(mode ifuzzimpl.Mode, typ ifuzzimpl.Type) []ifuzzimpl.Insn {
+func (insnset *InsnSet) GetInsns(mode iset.Mode, typ iset.Type) []iset.Insn {
 	return insnset.modeInsns[mode][typ]
 }
 
-func (insnset *InsnSet) Decode(mode ifuzzimpl.Mode, text []byte) (int, error) {
+func (insnset *InsnSet) Decode(mode iset.Mode, text []byte) (int, error) {
 	if len(text) < 4 {
 		return 0, errors.New("must be at least 4 bytes")
 	}
@@ -61,7 +61,7 @@ func (insnset *InsnSet) Decode(mode ifuzzimpl.Mode, text []byte) (int, error) {
 	return 0, fmt.Errorf("unrecognised instruction %08x", insn32)
 }
 
-func (insnset *InsnSet) DecodeExt(mode ifuzzimpl.Mode, text []byte) (int, error) {
+func (insnset *InsnSet) DecodeExt(mode iset.Mode, text []byte) (int, error) {
 	return 0, fmt.Errorf("no external decoder")
 }
 
@@ -85,7 +85,7 @@ func (insn *Insn) EncodeParam(v map[string]uint, r *rand.Rand) []byte {
 	return ret
 }
 
-func (insn Insn) Encode(cfg *ifuzzimpl.Config, r *rand.Rand) []byte {
+func (insn Insn) Encode(cfg *iset.Config, r *rand.Rand) []byte {
 	if insn.Pseudo {
 		return insn.generator(cfg, r)
 	}
@@ -108,16 +108,16 @@ func Register(insns []*Insn) {
 	for _, insn := range insnset.Insns {
 		insnset.modeInsns.Add(insn)
 	}
-	ifuzzimpl.Arches[ifuzzimpl.ArchPowerPC] = insnset
+	iset.Arches[iset.ArchPowerPC] = insnset
 }
 
-func (insn *Insn) Info() (string, ifuzzimpl.Mode, bool, bool) {
+func (insn *Insn) Info() (string, iset.Mode, bool, bool) {
 	return insn.Name, insn.mode(), insn.Pseudo, insn.Priv
 }
 
-func (insn Insn) mode() ifuzzimpl.Mode {
+func (insn Insn) mode() iset.Mode {
 	if insn.M64 {
-		return (1 << ifuzzimpl.ModeLong64)
+		return (1 << iset.ModeLong64)
 	}
-	return (1 << ifuzzimpl.ModeLong64) | (1 << ifuzzimpl.ModeProt32)
+	return (1 << iset.ModeLong64) | (1 << iset.ModeProt32)
 }
diff --git a/pkg/ifuzz/powerpc/pseudo.go b/pkg/ifuzz/powerpc/pseudo.go
index 495e0f935..f300eec0f 100644
--- a/pkg/ifuzz/powerpc/pseudo.go
+++ b/pkg/ifuzz/powerpc/pseudo.go
@@ -6,7 +6,7 @@ package powerpc
 import (
 	"math/rand"
 
-	"github.com/google/syzkaller/pkg/ifuzz/ifuzzimpl"
+	"github.com/google/syzkaller/pkg/ifuzz/iset"
 )
 
 // nolint:dupl
@@ -15,7 +15,7 @@ func (insnset *InsnSet) initPseudo() {
 		Name:   "PSEUDO_hypercall",
 		Priv:   true,
 		Pseudo: true,
-		generator: func(cfg *ifuzzimpl.Config, r *rand.Rand) []byte {
+		generator: func(cfg *iset.Config, r *rand.Rand) []byte {
 			gen := makeGen(insnset, cfg, r)
 			gen.sc(1)
 			return gen.text
@@ -25,7 +25,7 @@ func (insnset *InsnSet) initPseudo() {
 		Name:   "PSEUDO_syscall",
 		Priv:   true,
 		Pseudo: true,
-		generator: func(cfg *ifuzzimpl.Config, r *rand.Rand) []byte {
+		generator: func(cfg *iset.Config, r *rand.Rand) []byte {
 			gen := makeGen(insnset, cfg, r)
 			gen.sc(0)
 			return gen.text
@@ -35,7 +35,7 @@ func (insnset *InsnSet) initPseudo() {
 		Name:   "PSEUDO_ultracall",
 		Priv:   true,
 		Pseudo: true,
-		generator: func(cfg *ifuzzimpl.Config, r *rand.Rand) []byte {
+		generator: func(cfg *iset.Config, r *rand.Rand) []byte {
 			gen := makeGen(insnset, cfg, r)
 			gen.sc(2)
 			return gen.text
@@ -45,12 +45,12 @@ func (insnset *InsnSet) initPseudo() {
 
 type generator struct {
 	imap map[string]*Insn
-	mode ifuzzimpl.Mode
+	mode iset.Mode
 	r    *rand.Rand
 	text []byte
 }
 
-func makeGen(insnset *InsnSet, cfg *ifuzzimpl.Config, r *rand.Rand) *generator {
+func makeGen(insnset *InsnSet, cfg *iset.Config, r *rand.Rand) *generator {
 	return &generator{
 		imap: insnset.insnMap,
 		mode: cfg.Mode,