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eth/tracers/native: make opcode counter array

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This commit is contained in:
MariusVanDerWijden 2026-02-12 11:01:21 +01:00
parent e54f7a1f8b
commit fe5ad101e8
2 changed files with 4 additions and 10 deletions
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2
cmd/evm/internal/t8ntool/transition.go
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@ -195,7 +195,7 @@ func Transition(ctx *cli.Context) error {
// Configure opcode counter // Configure opcode counter
var counter *native.OpcodeCounter var counter *native.OpcodeCounter
if ctx.IsSet(OpcodeCountFlag.Name) && ctx.String(OpcodeCountFlag.Name) != "" { if ctx.IsSet(OpcodeCountFlag.Name) && ctx.String(OpcodeCountFlag.Name) != "" {
counter = native.NewOpcodeCounter() counter = new(native.OpcodeCounter)
if vmConfig.Tracer != nil { if vmConfig.Tracer != nil {
// If we have an existing tracer, multiplex with the opcode tracer // If we have an existing tracer, multiplex with the opcode tracer
tExisting := tracers.Tracer{Hooks: vmConfig.Tracer} tExisting := tracers.Tracer{Hooks: vmConfig.Tracer}

12
eth/tracers/native/opcode_counter.go
View file

@ -23,19 +23,13 @@ import (
// OpcodeCounter is a simple tracer that counts how many times each opcode is executed. // OpcodeCounter is a simple tracer that counts how many times each opcode is executed.
type OpcodeCounter struct { type OpcodeCounter struct {
counts map[vm.OpCode]uint64 counts [256]uint64
}
func NewOpcodeCounter() *OpcodeCounter {
return &OpcodeCounter{
counts: make(map[vm.OpCode]uint64),
}
} }
func (c *OpcodeCounter) Hooks() *tracing.Hooks { func (c *OpcodeCounter) Hooks() *tracing.Hooks {
return &tracing.Hooks{ return &tracing.Hooks{
OnOpcode: func(pc uint64, op byte, gas, cost uint64, scope tracing.OpContext, rData []byte, depth int, err error) { OnOpcode: func(pc uint64, op byte, gas, cost uint64, scope tracing.OpContext, rData []byte, depth int, err error) {
c.counts[vm.OpCode(op)]++ c.counts[op]++
}, },
} }
} }
@ -44,7 +38,7 @@ func (c *OpcodeCounter) Hooks() *tracing.Hooks {
func (c *OpcodeCounter) Results() map[string]uint64 { func (c *OpcodeCounter) Results() map[string]uint64 {
out := make(map[string]uint64, len(c.counts)) out := make(map[string]uint64, len(c.counts))
for op, count := range c.counts { for op, count := range c.counts {
out[op.String()] = count out[vm.OpCode(op).String()] = count
} }
return out return out
} }