Don't use readlink to find gdb's location.

readlink isn't in POSIX, and the one available in on OS X does not
support the -f option. Use $(cd $(dirname $0) && pwd) instead.

Bug: http://b/24776250
Change-Id: Ie62274752f777e3dd152a7ed2946691a45b4e198
1 file changed
tree: 8c9e1a34b2cef31fca7b0821d38edd58b48f8cc5
  1. bin/
  2. include/
  3. lib/
  4. share/