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// Copyright 2017 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 x86asm
import (
"encoding/hex"
"testing"
)
func testFormattingSymname(addr uint64) (string, uint64) {
switch addr {
case 0x424080:
return "runtime.printint", 0x424080
case 0x4c8068:
return "main.A", 0x4c8068
}
return "", 0
}
func TestFormatting(t *testing.T) {
testCases := []struct {
PC uint64
bytes string
goSyntax, intelSyntax, gnuSyntax string
}{
{0x4816b2, "0f8677010000",
"JBE 0x48182f",
"jbe 0x48182f",
"jbe 0x48182f"},
{0x45065b, "488b442408",
"MOVQ 0x8(SP), AX",
"mov rax, qword ptr [rsp+0x8]",
"mov 0x8(%rsp),%rax"},
{0x450678, "488b05e9790700",
"MOVQ main.A(SB), AX",
"mov rax, qword ptr [main.A]",
"mov main.A,%rax"},
{0x450664, "e8173afdff",
"CALL runtime.printint(SB)",
"call runtime.printint",
"callq runtime.printint"},
{0x45069b, "488d0575d90100",
"LEAQ 0x1d975(IP), AX",
"lea rax, ptr [rip+0x1d975]",
"lea 0x1d975(%rip),%rax"},
}
for _, testCase := range testCases {
t.Logf("%#x %s %s", testCase.PC, testCase.bytes, testCase.goSyntax)
bs, _ := hex.DecodeString(testCase.bytes)
inst, err := Decode(bs, 64)
if err != nil {
t.Errorf("decode error %v", err)
}
if out := GoSyntax(inst, testCase.PC, testFormattingSymname); out != testCase.goSyntax {
t.Errorf("GoSyntax: %q", out)
}
if out := IntelSyntax(inst, testCase.PC, testFormattingSymname); out != testCase.intelSyntax {
t.Errorf("IntelSyntax: %q expected: %q", out, testCase.intelSyntax)
}
if out := GNUSyntax(inst, testCase.PC, testFormattingSymname); out != testCase.gnuSyntax {
t.Errorf("GNUSyntax: %q expected: %q", out, testCase.gnuSyntax)
}
}
}
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