mirror of
git://git.yoctoproject.org/poky.git
synced 2025-07-19 21:09:03 +02:00
ef05a7fe17
Currently objdump command is invoked from the STAGING_BINDIR_TOOLCHAIN directory. In case of external toolchain if this directory doesn't exist then objdump fails to execute. Instead of hardcoding the path it should search PATH to find it. (From OE-Core rev: a3a0e29d5d796fdf6755503cc31e45199b79d756) Signed-off-by: Christopher Larson <chris_larson@mentor.com> Signed-off-by: Muhammad Shakeel <muhammad_shakeel@mentor.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
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(self, expectation, result):
|
|
if not expectation == result:
|
|
#print "'%x','%x' %s" % (ord(expectation), ord(result), self.name)
|
|
raise Exception("This does not work as expected")
|
|
|
|
def __init__(self, name, bits = 0):
|
|
self.name = name
|
|
self.bits = bits
|
|
self.objdump_output = {}
|
|
|
|
def open(self):
|
|
self.file = file(self.name, "r")
|
|
self.data = self.file.read(ELFFile.EI_NIDENT+4)
|
|
|
|
self.my_assert(len(self.data), ELFFile.EI_NIDENT+4)
|
|
self.my_assert(self.data[0], chr(0x7f) )
|
|
self.my_assert(self.data[1], 'E')
|
|
self.my_assert(self.data[2], 'L')
|
|
self.my_assert(self.data[3], 'F')
|
|
if self.bits == 0:
|
|
if self.data[ELFFile.EI_CLASS] == chr(ELFFile.ELFCLASS32):
|
|
self.bits = 32
|
|
elif self.data[ELFFile.EI_CLASS] == chr(ELFFile.ELFCLASS64):
|
|
self.bits = 64
|
|
else:
|
|
# Not 32-bit or 64.. lets assert
|
|
raise Exception("ELF but not 32 or 64 bit.")
|
|
elif self.bits == 32:
|
|
self.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS32))
|
|
elif self.bits == 64:
|
|
self.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS64))
|
|
else:
|
|
raise Exception("Must specify unknown, 32 or 64 bit size.")
|
|
self.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 Exception("self.sex == ELFDATANONE")
|
|
elif self.sex == chr(ELFFile.ELFDATA2LSB):
|
|
self.sex = "<"
|
|
elif self.sex == chr(ELFFile.ELFDATA2MSB):
|
|
self.sex = ">"
|
|
else:
|
|
raise Exception("Unknown self.sex")
|
|
|
|
def osAbi(self):
|
|
return ord(self.data[ELFFile.EI_OSABI])
|
|
|
|
def abiVersion(self):
|
|
return ord(self.data[ELFFile.EI_ABIVERSION])
|
|
|
|
def abiSize(self):
|
|
return self.bits
|
|
|
|
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
|
|
|
|
def run_objdump(self, cmd, d):
|
|
import bb.process
|
|
import sys
|
|
|
|
if self.objdump_output.has_key(cmd):
|
|
return self.objdump_output[cmd]
|
|
|
|
objdump = d.getVar('OBJDUMP', True)
|
|
|
|
env = os.environ.copy()
|
|
env["LC_ALL"] = "C"
|
|
env["PATH"] = d.getVar('PATH', True)
|
|
|
|
try:
|
|
bb.note("%s %s %s" % (objdump, cmd, self.name))
|
|
self.objdump_output[cmd] = bb.process.run([objdump, cmd, self.name], env=env, shell=False)[0]
|
|
return self.objdump_output[cmd]
|
|
except Exception, e:
|
|
bb.note("%s %s %s failed: %s" % (objdump, cmd, self.name, e))
|
|
return ""
|