for _, s := range x.f.Sections {
		if s.Name == ".go.buildinfo" {
			return s.Addr, s.Size
		}
	}
	for _, p := range x.f.Progs {
		if p.Type == elf.PT_LOAD && p.Flags&(elf.PF_X|elf.PF_W) == elf.PF_W {
			return p.Vaddr, p.Memsz
		}
	}
	return 0, 0
}

// peExe is the PE (Windows Portable Executable) implementation of the exe interface.
type peExe struct {
	f *pe.File
}

		ph.Type = elf.PT_GNU_STACK
		ph.Flags = elf.PF_W + elf.PF_R
		ph.Align = uint64(ctxt.Arch.RegSize)
	} else if ctxt.HeadType == objabi.Hopenbsd {
		ph := newElfPhdr()
		ph.Type = elf.PT_OPENBSD_NOBTCFI
		ph.Flags = elf.PF_X
	} else if ctxt.HeadType == objabi.Hsolaris {
		ph := newElfPhdr()
		ph.Type = elf.PT_SUNWSTACK
		ph.Flags = elf.PF_W + elf.PF_R
	}

elfobj:

const (
	PF_X        ProgFlag = 0x1        /* Executable. */
	PF_W        ProgFlag = 0x2        /* Writable. */
	PF_R        ProgFlag = 0x4        /* Readable. */
	PF_MASKOS   ProgFlag = 0x0ff00000 /* Operating system-specific. */
	PF_MASKPROC ProgFlag = 0xf0000000 /* Processor-specific. */
)

var pfStrings = []intName{
	{0x1, "PF_X"},
	{0x2, "PF_W"},
	{0x4, "PF_R"},
}

		{"NT_PRSTATUS", Const, 0},
		{"NType", Type, 0},
		{"NewFile", Func, 0},
		{"OSABI", Type, 0},
		{"Open", Func, 0},
		{"PF_MASKOS", Const, 0},
		{"PF_MASKPROC", Const, 0},
		{"PF_R", Const, 0},
		{"PF_W", Const, 0},
		{"PF_X", Const, 0},
		{"PT_AARCH64_ARCHEXT", Const, 16},
		{"PT_AARCH64_UNWIND", Const, 16},
		{"PT_ARM_ARCHEXT", Const, 16},
		{"PT_ARM_EXIDX", Const, 16},
		{"PT_DYNAMIC", Const, 0},