Subversion Repositories openrisc

// Copyright 2009 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 dwarf_test

import (
        . "debug/dwarf"
        "debug/elf"
        "debug/macho"
        "testing"
)

var typedefTests = map[string]string{
        "t_ptr_volatile_int":                    "*volatile int",
        "t_ptr_const_char":                      "*const char",
        "t_long":                                "long int",
        "t_ushort":                              "short unsigned int",
        "t_func_int_of_float_double":            "func(float, double) int",
        "t_ptr_func_int_of_float_double":        "*func(float, double) int",
        "t_ptr_func_int_of_float_complex":       "*func(complex float) int",
        "t_ptr_func_int_of_double_complex":      "*func(complex double) int",
        "t_ptr_func_int_of_long_double_complex": "*func(complex long double) int",
        "t_func_ptr_int_of_char_schar_uchar":    "func(char, signed char, unsigned char) *int",
        "t_func_void_of_char":                   "func(char) void",
        "t_func_void_of_void":                   "func() void",
        "t_func_void_of_ptr_char_dots":          "func(*char, ...) void",
        "t_my_struct":                           "struct my_struct {vi volatile int@0; x char@4 : 1@7; y int@4 : 4@27; array [40]long long int@8}",
        "t_my_union":                            "union my_union {vi volatile int@0; x char@0 : 1@7; y int@0 : 4@28; array [40]long long int@0}",
        "t_my_enum":                             "enum my_enum {e1=1; e2=2; e3=-5; e4=1000000000000000}",
        "t_my_list":                             "struct list {val short int@0; next *t_my_list@8}",
        "t_my_tree":                             "struct tree {left *struct tree@0; right *struct tree@8; val long long unsigned int@16}",
}

func elfData(t *testing.T, name string) *Data {
        f, err := elf.Open(name)
        if err != nil {
                t.Fatal(err)
        }

        d, err := f.DWARF()
        if err != nil {
                t.Fatal(err)
        }
        return d
}

func machoData(t *testing.T, name string) *Data {
        f, err := macho.Open(name)
        if err != nil {
                t.Fatal(err)
        }

        d, err := f.DWARF()
        if err != nil {
                t.Fatal(err)
        }
        return d
}

func TestTypedefsELF(t *testing.T) { testTypedefs(t, elfData(t, "testdata/typedef.elf")) }

func TestTypedefsMachO(t *testing.T) {
        testTypedefs(t, machoData(t, "testdata/typedef.macho"))
}

func testTypedefs(t *testing.T, d *Data) {
        r := d.Reader()
        seen := make(map[string]bool)
        for {
                e, err := r.Next()
                if err != nil {
                        t.Fatal("r.Next:", err)
                }
                if e == nil {
                        break
                }
                if e.Tag == TagTypedef {
                        typ, err := d.Type(e.Offset)
                        if err != nil {
                                t.Fatal("d.Type:", err)
                        }
                        t1 := typ.(*TypedefType)
                        var typstr string
                        if ts, ok := t1.Type.(*StructType); ok {
                                typstr = ts.Defn()
                        } else {
                                typstr = t1.Type.String()
                        }

                        if want, ok := typedefTests[t1.Name]; ok {
                                if seen[t1.Name] {
                                        t.Errorf("multiple definitions for %s", t1.Name)
                                }
                                seen[t1.Name] = true
                                if typstr != want {
                                        t.Errorf("%s:\n\thave %s\n\twant %s", t1.Name, typstr, want)
                                }
                        }
                }
                if e.Tag != TagCompileUnit {
                        r.SkipChildren()
                }
        }

        for k := range typedefTests {
                if !seen[k] {
                        t.Errorf("missing %s", k)
                }
        }
}