Message 239117 - Python tracker (original) (raw)

I was looking into http://lists.cs.uiuc.edu/pipermail/llvmbugs/2012-September/025152.html 'Use of libclang python bindings on Windows 7 64 bit fails with memory access violation'

It appears to be 90% fixed with this patch, but I believe there is still a problem when structs are passed back though a callback function.

Could this be the correct addition to fix it? in ffi_prep_incoming_args_SYSV() _ctypes\libffi_msvc\ffi.c(line 377)

  /* because we're little endian, this is what it turns into.   */

+#if _WIN64

•  if ((*p_arg)->type == FFI_TYPE_STRUCT && z > 8)

•      {

•      z = 8;

•      *p_argv = *(void**)argp;

•      }

•  else

•      {

•      *p_argv = (void*)argp;

•      }

+#else p_argv = (void)argp; +#endif