Golang dwarf.New函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了Golang中debug/dwarf.New函数的典型用法代码示例。如果您正苦于以下问题：Golang New函数的具体用法？Golang New怎么用？Golang New使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了New函数的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: DWARF

func (f *File) DWARF() (*dwarf.Data, error) {
	// There are many other DWARF sections, but these
	// are the ones the debug/dwarf package uses.
	// Don't bother loading others.
	var names = [...]string{"abbrev", "info", "line", "str"}
	var dat [len(names)][]byte
	for i, name := range names {
		name = ".debug_" + name
		s := f.Section(name)
		if s == nil {
			continue
		}
		b, err := s.Data()
		if err != nil && uint32(len(b)) < s.Size {
			return nil, err
		}
		if 0 < s.VirtualSize && s.VirtualSize < s.Size {
			b = b[:s.VirtualSize]
		}
		dat[i] = b
	}

	abbrev, info, line, str := dat[0], dat[1], dat[2], dat[3]
	return dwarf.New(abbrev, nil, nil, info, line, nil, nil, str)
}

开发者ID:RajibTheKing，项目名称:gcc，代码行数:25，代码来源:file.go

示例2: DWARF

func (f *File) DWARF() (*dwarf.Data, os.Error) {
	// There are many other DWARF sections, but these
	// are the required ones, and the debug/dwarf package
	// does not use the others, so don't bother loading them.
	var names = [...]string{"abbrev", "info", "str"}
	var dat [len(names)][]byte
	for i, name := range names {
		name = ".debug_" + name
		s := f.Section(name)
		if s == nil {
			continue
		}
		b, err := s.Data()
		if err != nil && uint64(len(b)) < s.Size {
			return nil, err
		}
		dat[i] = b
	}

	// If there's a relocation table for .debug_info, we have to process it
	// now otherwise the data in .debug_info is invalid for x86-64 objects.
	rela := f.Section(".rela.debug_info")
	if rela != nil && rela.Type == SHT_RELA && f.Machine == EM_X86_64 {
		data, err := rela.Data()
		if err != nil {
			return nil, err
		}
		err = f.applyRelocations(dat[1], data)
		if err != nil {
			return nil, err
		}
	}

	abbrev, info, str := dat[0], dat[1], dat[2]
	return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str)
}

开发者ID:go-nosql，项目名称:golang，代码行数:36，代码来源:file.go

示例3: DWARF

func (f *File) DWARF() (*dwarf.Data, error) {
	// sectionData gets the data for s, checks its size, and
	// applies any applicable relations.
	sectionData := func(i int, s *Section) ([]byte, error) {
		b, err := s.Data()
		if err != nil && uint64(len(b)) < s.Size {
			return nil, err
		}

		if len(b) >= 12 && string(b[:4]) == "ZLIB" {
			dlen := binary.BigEndian.Uint64(b[4:12])
			dbuf := make([]byte, dlen)
			r, err := zlib.NewReader(bytes.NewBuffer(b[12:]))
			if err != nil {
				return nil, err
			}
			if _, err := io.ReadFull(r, dbuf); err != nil {
				return nil, err
			}
			if err := r.Close(); err != nil {
				return nil, err
			}
			b = dbuf
		}

		for _, r := range f.Sections {
			if r.Type != SHT_RELA && r.Type != SHT_REL {
				continue
			}
			if int(r.Info) != i {
				continue
			}
			rd, err := r.Data()
			if err != nil {
				return nil, err
			}
			err = f.applyRelocations(b, rd)
			if err != nil {
				return nil, err
			}
		}
		return b, nil
	}

	// There are many other DWARF sections, but these
	// are the ones the debug/dwarf package uses.
	// Don't bother loading others.
	var dat = map[string][]byte{"abbrev": nil, "info": nil, "str": nil, "line": nil}
	for i, s := range f.Sections {
		suffix := ""
		switch {
		case strings.HasPrefix(s.Name, ".debug_"):
			suffix = s.Name[7:]
		case strings.HasPrefix(s.Name, ".zdebug_"):
			suffix = s.Name[8:]
		default:
			continue
		}
		if _, ok := dat[suffix]; !ok {
			continue
		}
		b, err := sectionData(i, s)
		if err != nil {
			return nil, err
		}
		dat[suffix] = b
	}

	d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, nil, dat["str"])
	if err != nil {
		return nil, err
	}

	// Look for DWARF4 .debug_types sections.
	for i, s := range f.Sections {
		if s.Name == ".debug_types" {
			b, err := sectionData(i, s)
			if err != nil {
				return nil, err
			}

			err = d.AddTypes(fmt.Sprintf("types-%d", i), b)
			if err != nil {
				return nil, err
			}
		}
	}

	return d, nil
}

开发者ID:wycharry，项目名称:go，代码行数:90，代码来源:file.go

示例4: DWARF

func (f *File) DWARF() (*dwarf.Data, error) {
	// There are many other DWARF sections, but these
	// are the required ones, and the debug/dwarf package
	// does not use the others, so don't bother loading them.
	var names = [...]string{"abbrev", "info", "str"}
	var dat [len(names)][]byte
	for i, name := range names {
		name = ".debug_" + name
		s := f.Section(name)
		if s == nil {
			continue
		}
		b, err := s.Data()
		if err != nil && uint64(len(b)) < s.Size {
			return nil, err
		}
		dat[i] = b
	}

	// If there's a relocation table for .debug_info, we have to process it
	// now otherwise the data in .debug_info is invalid for x86-64 objects.
	rela := f.Section(".rela.debug_info")
	if rela != nil && rela.Type == SHT_RELA && f.Machine == EM_X86_64 {
		data, err := rela.Data()
		if err != nil {
			return nil, err
		}
		err = f.applyRelocations(dat[1], data)
		if err != nil {
			return nil, err
		}
	}

	// When using clang we need to process relocations even for 386.
	rel := f.Section(".rel.debug_info")
	if rel != nil && rel.Type == SHT_REL && f.Machine == EM_386 {
		data, err := rel.Data()
		if err != nil {
			return nil, err
		}
		err = f.applyRelocations(dat[1], data)
		if err != nil {
			return nil, err
		}
	}

	abbrev, info, str := dat[0], dat[1], dat[2]
	d, err := dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str)
	if err != nil {
		return nil, err
	}

	// Look for DWARF4 .debug_types sections.
	for i, s := range f.Sections {
		if s.Name == ".debug_types" {
			b, err := s.Data()
			if err != nil && uint64(len(b)) < s.Size {
				return nil, err
			}

			for _, r := range f.Sections {
				if r.Type != SHT_RELA && r.Type != SHT_REL {
					continue
				}
				if int(r.Info) != i {
					continue
				}
				rd, err := r.Data()
				if err != nil {
					return nil, err
				}
				err = f.applyRelocations(b, rd)
				if err != nil {
					return nil, err
				}
			}

			err = d.AddTypes(fmt.Sprintf("types-%d", i), b)
			if err != nil {
				return nil, err
			}
		}
	}

	return d, nil
}

开发者ID:raomuming，项目名称:go，代码行数:86，代码来源:file.go

示例5: DWARF

func (f *File) DWARF() (*dwarf.Data, error) {
	// sectionData gets the data for s, checks its size, and
	// applies any applicable relations.
	sectionData := func(i int, s *Section) ([]byte, error) {
		b, err := s.Data()
		if err != nil && uint64(len(b)) < s.Size {
			return nil, err
		}

		for _, r := range f.Sections {
			if r.Type != SHT_RELA && r.Type != SHT_REL {
				continue
			}
			if int(r.Info) != i {
				continue
			}
			rd, err := r.Data()
			if err != nil {
				return nil, err
			}
			err = f.applyRelocations(b, rd)
			if err != nil {
				return nil, err
			}
		}
		return b, nil
	}

	// There are many other DWARF sections, but these
	// are the ones the debug/dwarf package uses.
	// Don't bother loading others.
	var dat = map[string][]byte{"abbrev": nil, "info": nil, "str": nil, "line": nil}
	for i, s := range f.Sections {
		if !strings.HasPrefix(s.Name, ".debug_") {
			continue
		}
		if _, ok := dat[s.Name[7:]]; !ok {
			continue
		}
		b, err := sectionData(i, s)
		if err != nil {
			return nil, err
		}
		dat[s.Name[7:]] = b
	}

	d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, nil, dat["str"])
	if err != nil {
		return nil, err
	}

	// Look for DWARF4 .debug_types sections.
	for i, s := range f.Sections {
		if s.Name == ".debug_types" {
			b, err := sectionData(i, s)
			if err != nil {
				return nil, err
			}

			err = d.AddTypes(fmt.Sprintf("types-%d", i), b)
			if err != nil {
				return nil, err
			}
		}
	}

	return d, nil
}

开发者ID:gmwu，项目名称:go，代码行数:68，代码来源:file.go

注：本文中的debug/dwarf.New函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。