Python modules for Software Development Tools

PyDevTools is a suite of python modules for the rapid prototyping of software development tools.

Currently, the project include modules for: * ELF handling * DWARF handling

If you have any issues, please try the latest version from SVN. If it doesn't help, report a new issue for bugs, or desired features. (possibly, attaching the target ELF file to reproduce the issue).

For any feedback, or for joining the project, just drop an e-mail at our developers google group: https://groups.google.com/d/forum/pydevtools

Large part of the modules has been developed for internal applications at CSR (copyright owner). CSR allowed to release the whole project under the BSD license.

Install

easy_install BinTools If you have issues please first try latest source from SVN repository. See Source tab for instructions.

Dwarf Dump

``` $ ./dwarfdump.py ../test/test

[...] <1><137> subprogram external: True name: dummy_a decl_file: a/test.c decl_line: 10 prototyped: True low_pc: 0x08048403 high_pc: 0x08048410 frame_base: <0x1f:0x20> DW_OP_breg4:+4 <0x20:0x22> DW_OP_breg4:+8 <0x22:0x2c> DW_OP_breg5:+8

<1><158> variable name: my_static_var decl_file: a/test.c decl_line: 4 type: 79 location: DW_OP_addr:+134520852

.debug_line: line number info for a single cu a/test.c [ 6,0] 0x080483e4 - is_stmt a/test.c [ 7,0] 0x080483ea - is_stmt a/test.c [ 8,0] 0x08048401 - is_stmt a/test.c [ 10,0] 0x08048403 - is_stmt a/test.c [ 11,0] 0x08048409 - is_stmt [...] ```

DWARF Viewer

./dwarfviewer.py ../test/test

DWARF Query

``` class TestDwarfQuery(TestCase): def setUp(self): self.dwarf = DWARF('../test/test')

def test_loc_by_addr(self):
    loc = self.dwarf.get_loc_by_addr(0x8048475)
    self.assertEqual(loc, ('/home/emilmont/Workspace/dbg/test/main.c', 36, 0))

def test_loc_by_sym(self):
    loc = self.dwarf.get_loc_by_sym('main')
    self.assertEqual(loc, ('/home/emilmont/Workspace/dbg/test/main.c', 54, 0)) 

    loc = self.dwarf.get_loc_by_sym('temp')
    self.assertEqual(loc, ('/home/emilmont/Workspace/dbg/test/main.c', 15, 0))

def test_addr_by_sym(self):
    addr = self.dwarf.get_addr_by_sym('main')
    self.assertEqual(addr, 0x80484ac)

def test_addr_by_loc(self):
    addr = self.dwarf.get_addr_by_loc('a/test.c', 10)
    self.assertEqual(addr, 0x8048403)

```

ELF

```

from bintools.elf import ELF elf = ELF('../test/test') for s in elf.sect_dict['.text'].get_symbols(): ... print s.get_name() ...

__do_global_dtors_aux frame_dummy __do_global_ctors_aux my_static_func f3 f2 __libc_csu_fini _start __libc_csu_init f1 dummy_a __i686.get_pc_thunk.bx main dummy_b [...] ```