+++ /dev/null
-#!/usr/bin/env python
-
-import struct
-import sys
-import StringIO
-
-import common_dump
-
-class Reader:
- def __init__(self, path):
- if path == "-":
- # Snarf all the data so we can seek.
- self.file = StringIO.StringIO(sys.stdin.read())
- else:
- self.file = open(path, "rb")
- self.isLSB = None
- self.is64Bit = None
- self.isN64 = False
-
- def seek(self, pos):
- self.file.seek(pos)
-
- def read(self, N):
- data = self.file.read(N)
- if len(data) != N:
- raise ValueError, "Out of data!"
- return data
-
- def read8(self):
- return (ord(self.read(1)), 8)
-
- def read16(self):
- return (struct.unpack('><'[self.isLSB] + 'H', self.read(2))[0], 16)
-
- def read32(self):
- return (struct.unpack('><'[self.isLSB] + 'I', self.read(4))[0], 32)
-
- def read64(self):
- return (struct.unpack('><'[self.isLSB] + 'Q', self.read(8))[0], 64)
-
- def readWord(self):
- if self.is64Bit:
- return self.read64()
- else:
- return self.read32()
-
-class StringTable:
- def __init__(self, strings):
- self.string_table = strings
-
- def __getitem__(self, index):
- end = self.string_table.index('\x00', index)
- return self.string_table[index:end]
-
-class ProgramHeader:
- def __init__(self, f):
- self.p_type = f.read32()
- if f.is64Bit:
- self.p_flags = f.read32()
- self.p_offset = f.readWord()
- self.p_vaddr = f.readWord()
- self.p_paddr = f.readWord()
- self.p_filesz = f.readWord()
- self.p_memsz = f.readWord()
- if not f.is64Bit:
- self.p_flags = f.read32()
- self.p_align = f.readWord()
-
- def dump(self):
- print " (('p_type', %s)" % common_dump.HexDump(self.p_type)
- print " ('p_flags', %s)" % common_dump.HexDump(self.p_flags)
- print " ('p_offset', %s)" % common_dump.HexDump(self.p_offset)
- print " ('p_vaddr', %s)" % common_dump.HexDump(self.p_vaddr)
- print " ('p_paddr', %s)" % common_dump.HexDump(self.p_paddr)
- print " ('p_filesz', %s)" % common_dump.HexDump(self.p_filesz)
- print " ('p_memsz', %s)" % common_dump.HexDump(self.p_memsz)
- print " ('p_align', %s)" % common_dump.HexDump(self.p_align)
- print " ),"
-
-class Section:
- def __init__(self, f):
- self.sh_name = f.read32()
- self.sh_type = f.read32()
- self.sh_flags = f.readWord()
- self.sh_addr = f.readWord()
- self.sh_offset = f.readWord()
- self.sh_size = f.readWord()
- self.sh_link = f.read32()
- self.sh_info = f.read32()
- self.sh_addralign = f.readWord()
- self.sh_entsize = f.readWord()
-
- def dump(self, shstrtab, f, strtab, dumpdata):
- print " (('sh_name', %s)" % common_dump.HexDump(self.sh_name), "# %r" % shstrtab[self.sh_name[0]]
- print " ('sh_type', %s)" % common_dump.HexDump(self.sh_type)
- print " ('sh_flags', %s)" % common_dump.HexDump(self.sh_flags)
- print " ('sh_addr', %s)" % common_dump.HexDump(self.sh_addr)
- print " ('sh_offset', %s)" % common_dump.HexDump(self.sh_offset)
- print " ('sh_size', %s)" % common_dump.HexDump(self.sh_size)
- print " ('sh_link', %s)" % common_dump.HexDump(self.sh_link)
- print " ('sh_info', %s)" % common_dump.HexDump(self.sh_info)
- print " ('sh_addralign', %s)" % common_dump.HexDump(self.sh_addralign)
- print " ('sh_entsize', %s)" % common_dump.HexDump(self.sh_entsize)
- if self.sh_type[0] == 2: # SHT_SYMTAB
- print " ('_symbols', ["
- dumpSymtab(f, self, strtab)
- print " ])"
- elif self.sh_type[0] == 4 or self.sh_type[0] == 9: # SHT_RELA / SHT_REL
- print " ('_relocations', ["
- dumpRel(f, self, self.sh_type[0] == 4)
- print " ])"
- elif dumpdata:
- f.seek(self.sh_offset[0])
- if self.sh_type != 8: # != SHT_NOBITS
- data = f.read(self.sh_size[0])
- print " ('_section_data', '%s')" % common_dump.dataToHex(data)
- else:
- print " ('_section_data', '')"
- print " ),"
-
-def dumpSymtab(f, section, strtab):
- entries = section.sh_size[0] // section.sh_entsize[0]
-
- for index in range(entries):
- f.seek(section.sh_offset[0] + index * section.sh_entsize[0])
- print " # Symbol %s" % index
- name = f.read32()
- print " (('st_name', %s)" % common_dump.HexDump(name), "# %r" % strtab[name[0]]
- if not f.is64Bit:
- print " ('st_value', %s)" % common_dump.HexDump(f.read32())
- print " ('st_size', %s)" % common_dump.HexDump(f.read32())
- st_info = f.read8()[0]
- st_bind = (st_info >> 4, 4)
- st_type = (st_info & 0xf, 4)
- print " ('st_bind', %s)" % common_dump.HexDump(st_bind)
- print " ('st_type', %s)" % common_dump.HexDump(st_type)
- print " ('st_other', %s)" % common_dump.HexDump(f.read8())
- print " ('st_shndx', %s)" % common_dump.HexDump(f.read16())
- if f.is64Bit:
- print " ('st_value', %s)" % common_dump.HexDump(f.read64())
- print " ('st_size', %s)" % common_dump.HexDump(f.read64())
- print " ),"
-
-def dumpRel(f, section, dumprela = False):
- entries = section.sh_size[0] // section.sh_entsize[0]
-
- for index in range(entries):
- f.seek(section.sh_offset[0] + index * section.sh_entsize[0])
- print " # Relocation %s" % index
- print " (('r_offset', %s)" % common_dump.HexDump(f.readWord())
-
- if f.isN64:
- r_sym = f.read32()
- r_ssym = f.read8()
- r_type3 = f.read8()
- r_type2 = f.read8()
- r_type = f.read8()
- print " ('r_sym', %s)" % common_dump.HexDump(r_sym)
- print " ('r_ssym', %s)" % common_dump.HexDump(r_ssym)
- print " ('r_type3', %s)" % common_dump.HexDump(r_type3)
- print " ('r_type2', %s)" % common_dump.HexDump(r_type2)
- print " ('r_type', %s)" % common_dump.HexDump(r_type)
- else:
- r_info = f.readWord()[0]
- if f.is64Bit:
- r_sym = (r_info >> 32, 32)
- r_type = (r_info & 0xffffffff, 32)
- else:
- r_sym = (r_info >> 8, 24)
- r_type = (r_info & 0xff, 8)
- print " ('r_sym', %s)" % common_dump.HexDump(r_sym)
- print " ('r_type', %s)" % common_dump.HexDump(r_type)
- if dumprela:
- print " ('r_addend', %s)" % common_dump.HexDump(f.readWord())
- print " ),"
-
-def dumpELF(path, opts):
- f = Reader(path)
-
- magic = f.read(4)
- assert magic == '\x7FELF'
-
- fileclass = f.read8()
- if fileclass[0] == 1: # ELFCLASS32
- f.is64Bit = False
- elif fileclass[0] == 2: # ELFCLASS64
- f.is64Bit = True
- else:
- raise ValueError, "Unknown file class %s" % common_dump.HexDump(fileclass)
- print "('e_indent[EI_CLASS]', %s)" % common_dump.HexDump(fileclass)
-
- byteordering = f.read8()
- if byteordering[0] == 1: # ELFDATA2LSB
- f.isLSB = True
- elif byteordering[0] == 2: # ELFDATA2MSB
- f.isLSB = False
- else:
- raise ValueError, "Unknown byte ordering %s" % common_dump.HexDump(byteordering)
- print "('e_indent[EI_DATA]', %s)" % common_dump.HexDump(byteordering)
-
- print "('e_indent[EI_VERSION]', %s)" % common_dump.HexDump(f.read8())
- print "('e_indent[EI_OSABI]', %s)" % common_dump.HexDump(f.read8())
- print "('e_indent[EI_ABIVERSION]', %s)" % common_dump.HexDump(f.read8())
-
- f.seek(16) # Seek to end of e_ident.
-
- print "('e_type', %s)" % common_dump.HexDump(f.read16())
-
- # Does any other architecture use N64?
- e_machine = f.read16()
- if e_machine[0] == 0x0008 and f.is64Bit: # EM_MIPS && 64 bit
- f.isN64 = True
-
- print "('e_machine', %s)" % common_dump.HexDump(e_machine)
- print "('e_version', %s)" % common_dump.HexDump(f.read32())
- print "('e_entry', %s)" % common_dump.HexDump(f.readWord())
- e_phoff = f.readWord()
- print "('e_phoff', %s)" % common_dump.HexDump(e_phoff)
- e_shoff = f.readWord()
- print "('e_shoff', %s)" % common_dump.HexDump(e_shoff)
- print "('e_flags', %s)" % common_dump.HexDump(f.read32())
- print "('e_ehsize', %s)" % common_dump.HexDump(f.read16())
- e_phentsize = f.read16()
- print "('e_phentsize', %s)" % common_dump.HexDump(e_phentsize)
- e_phnum = f.read16()
- print "('e_phnum', %s)" % common_dump.HexDump(e_phnum)
- e_shentsize = f.read16()
- print "('e_shentsize', %s)" % common_dump.HexDump(e_shentsize)
- e_shnum = f.read16()
- print "('e_shnum', %s)" % common_dump.HexDump(e_shnum)
- e_shstrndx = f.read16()
- print "('e_shstrndx', %s)" % common_dump.HexDump(e_shstrndx)
-
-
- # Read all section headers
- sections = []
- for index in range(e_shnum[0]):
- f.seek(e_shoff[0] + index * e_shentsize[0])
- s = Section(f)
- sections.append(s)
-
- # Read .shstrtab so we can resolve section names
- f.seek(sections[e_shstrndx[0]].sh_offset[0])
- shstrtab = StringTable(f.read(sections[e_shstrndx[0]].sh_size[0]))
-
- # Get the symbol string table
- strtab = None
- for section in sections:
- if shstrtab[section.sh_name[0]] == ".strtab":
- f.seek(section.sh_offset[0])
- strtab = StringTable(f.read(section.sh_size[0]))
- break
-
- print "('_sections', ["
- for index in range(e_shnum[0]):
- print " # Section %s" % index
- sections[index].dump(shstrtab, f, strtab, opts.dumpSectionData)
- print "])"
-
- # Read all program headers
- headers = []
- for index in range(e_phnum[0]):
- f.seek(e_phoff[0] + index * e_phentsize[0])
- h = ProgramHeader(f)
- headers.append(h)
-
- print "('_ProgramHeaders', ["
- for index in range(e_phnum[0]):
- print " # Program Header %s" % index
- headers[index].dump()
- print "])"
-
-if __name__ == "__main__":
- from optparse import OptionParser, OptionGroup
- parser = OptionParser("usage: %prog [options] {files}")
- parser.add_option("", "--dump-section-data", dest="dumpSectionData",
- help="Dump the contents of sections",
- action="store_true", default=False)
- (opts, args) = parser.parse_args()
-
- if not args:
- args.append('-')
-
- for arg in args:
- dumpELF(arg, opts)
projects / oota-llvm.git / blobdiff