Merge pull request iovisor#511 from vmg/vmg/find-library

bpf: Wrap `bcc_procutils_which_so` as `BPF.find_library`

src/python/bcc/__init__.py

@@ -432,6 +432,10 @@ def _check_path_symbol(cls, module, symname, addr):
  raise Exception("could not determine address of symbol %s" % symname)
  return sym.module, sym.offset
 
+ @staticmethod
+ def find_library(libname):
+ return lib.bcc_procutils_which_so(libname)
+
  def attach_uprobe(self, name="", sym="", addr=None,
  fn_name="", pid=-1, cpu=0, group_fd=-1):
  """attach_uprobe(name="", sym="", addr=None, fn_name=""

src/python/bcc/libbcc.py

@@ -111,6 +111,9 @@ class bcc_symbol(ct.Structure):
  ('offset', ct.c_ulonglong),
  ]
 
+lib.bcc_procutils_which_so.restype = ct.c_char_p
+lib.bcc_procutils_which_so.argtypes = [ct.c_char_p]
+
 lib.bcc_resolve_symname.restype = ct.c_int
 lib.bcc_resolve_symname.argtypes = [
  ct.c_char_p, ct.c_char_p, ct.c_ulonglong, ct.POINTER(bcc_symbol)]