def load_elf_interp(self, p):
for k, f in p.bin._Elf__dynamic(None).items():
xf = cpu.ext(f, size=32)
xf.stub = self.stub(xf.ref)
p.state.mmap.write(k, xf)
# we want to add .plt addresses as symbols as well
# to improve asm block views:
plt = got = None
for s in p.bin.Shdr:
if s.name == '.plt':
plt = s
elif s.name == '.got':
got = s
if plt and got:
address = plt.sh_addr
pltco = p.bin.readsection(plt)
while (pltco):
i = p.cpu.disassemble(pltco)
#TODO update to match plt structure for sparc
if i.mnemonic == 'jmpl' and i.operands[0]._is_mem:
target = i.operands[0].a
if target.base is p.cpu.pc:
target = address + target.disp
elif target.base._is_reg:
target = got.sh_addr + target.disp
elif target.base._is_cst:
target = target.base.value + target.disp
if target in p.bin.functions:
p.bin.functions[address] = p.bin.functions[target]
pltco = pltco[i.length:]
address += i.length
def libc_start_main(m, **kargs):
"tags: func_call"
m[cpu.pc] = m(cpu.mem(cpu.sp + 4, 32))
m[cpu.npc] = m(cpu.pc) + 4
cpu.push(m, cpu.ext("exit", size=32))
def load_shlib(self):
for k,f in self.bin._Elf32__dynamic(None).iteritems():
self.mmap.write(k,cpu.ext(f))
def load_shlib(self):
for k, f in self.bin._Elf32__dynamic(None).items():
self.mmap.write(k, cpu.ext(f, size=32))