diff options
Diffstat (limited to 'classes/insane.bbclass')
| -rw-r--r-- | classes/insane.bbclass | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/classes/insane.bbclass b/classes/insane.bbclass index d11d8ddd7e..cda2ebc917 100644 --- a/classes/insane.bbclass +++ b/classes/insane.bbclass @@ -24,6 +24,105 @@ inherit package PACKAGE_DEPENDS += "pax-utils-native" PACKAGEFUNCS += " do_package_qa " + +# +# dictionary for elf headers +# +# feel free to add and correct. the ARM EABI needs another column and we +# need mips, i386 and amd64 input (abi versions) +# +# TARGET_OS TARGET_ARCH MACHINE, OSABI, ABIVERSION, Little Endian +def package_qa_get_machine_dict(): + return { + "linux" : { "arm" : (40, 97, 0, True), + "armeb": (40, 97, 0, False), + "powerpc": (20, 0, 0, False), + }, + "linux-uclibc" : { "arm" : (40, 97, 0, True), + "armeb": (40, 97, 0, False), + "powerpc": (20, 0, 0, False), + }, + } + +# factory for a class, embedded in a method +def package_qa_get_elf(path): + class ELFFile: + EI_NIDENT = 16 + + EI_CLASS = 4 + EI_DATA = 5 + EI_VERSION = 6 + EI_OSABI = 7 + EI_ABIVERSION = 8 + + # possible values for EI_CLASS + ELFCLASSNONE = 0 + ELFCLASS32 = 1 + ELFCLASS64 = 2 + + # possible value for EI_VERSION + EV_CURRENT = 1 + + # possible values for EI_DATA + ELFDATANONE = 0 + ELFDATA2LSB = 1 + ELFDATA2MSB = 2 + + def my_assert(expectation, result): + if not expectation == result: + #print "'%x','%x'" % (ord(expectation), ord(result)) + raise "This does not work as expected" + my_assert = staticmethod(my_assert) + + def __init__(self, name): + self.name = name + + def open(self): + self.file = file(self.name, "r") + self.data = self.file.read(ELFFile.EI_NIDENT+4) + + ELFFile.my_assert(len(self.data), ELFFile.EI_NIDENT+4) + ELFFile.my_assert(self.data[0], chr(0x7f) ) + ELFFile.my_assert(self.data[1], 'E') + ELFFile.my_assert(self.data[2], 'L') + ELFFile.my_assert(self.data[3], 'F') + ELFFile.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS32)) # only 32 bits + ELFFile.my_assert(self.data[ELFFile.EI_VERSION], chr(ELFFile.EV_CURRENT) ) + + self.sex = self.data[ELFFile.EI_DATA] + if self.sex == chr(ELFFile.ELFDATANONE): + raise "Can't be" + elif self.sex == chr(ELFFile.ELFDATA2LSB): + self.sex = "<" + elif self.sex == chr(ELFFile.ELFDATA2MSB): + self.sex = ">" + else: + raise "Even more worse" + + def osAbi(self): + return ord(self.data[ELFFile.EI_OSABI]) + + def abiVersion(self): + return ord(self.data[ELFFile.EI_ABIVERSION]) + + def isLittleEndian(self): + return self.sex == "<" + + def isBigEngian(self): + return self.sex == ">" + + def machine(self): + """ + We know the sex stored in self.sex and we + know the position + """ + import struct + (a,) = struct.unpack(self.sex+"H", self.data[18:20]) + return a + + return ELFFile(path) + + # # # Known Error classes @@ -31,6 +130,7 @@ PACKAGEFUNCS += " do_package_qa " # 1 - package contains a dangerous RPATH # 2 - package depends on debug package # 3 - non dbg contains .so +# 4 - wrong architecture # # @@ -59,6 +159,7 @@ def package_qa_write_error(error_class, name, path, d): "package contains RPATH", "package depends on debug package", "non dbg contains .debug", + "wrong archutecture", ] @@ -125,7 +226,33 @@ def package_qa_check_arch(path,name,d): """ Check if archs are compatible """ + import bb + target_os = bb.data.getVar('TARGET_OS', d, True) + target_arch = bb.data.getVar('TARGET_ARCH', d, True) + + #this will throw an exception, then fix the dict above + (machine, osabi, abiversion, littleendian) = package_qa_get_machine_dict()[target_os][target_arch] + elf = package_qa_get_elf(path) + try: + elf.open() + except: + # just for debbugging to check the parser, remove once convinced... + return True + sane = True + if not machine == elf.machine(): + bb.error("Architecture did not match (%d to %d) on %s", (machine, elf.machine(), package_qa_clean_path(path,d))) + sane = package_qa_make_fatal_error( 4, name, path, d ) + elif not osabi == elf.osAbi(): + bb.error("OSABI did not match (%d to %d) on %s", (osabi, elf.osAbi(), package_qa_clean_path(path,d))) + sane = package_qa_make_fatal_error( 4, name, path, d ) + elif not abiversion == elf.abiVersion(): + bb.error("ABI version did not match (%d to %d) on %s", (abiversion, elf.abiVersion(), package_qa_clean_path(path,d))) + sane = package_qa_make_fatal_error( 4, name, path, d ) + elif not littleendian == elf.isLittleEndian(): + bb.error("Endiannes did not match (%d to %d) on %s", (littleendian, elf.isLittleEndian(), package_qa_clean_path(path,d))) + sane = package_qa_make_fatal_error( 4, name, path, d ) + return sane def package_qa_check_pcla(path,name,d): |