Comments (4)
Met this bug with headers containing the include to <sys/socket.h>
, with cmsghdr
structure from <bits/socket.h>
/* Structure used for storage of ancillary data object information. */
struct cmsghdr
{
size_t cmsg_len; /* Length of data in cmsg_data plus length
of cmsghdr structure.
!! The type should be socklen_t but the
definition of the kernel is incompatible
with this. */
int cmsg_level; /* Originating protocol. */
int cmsg_type; /* Protocol specific type. */
#if __glibc_c99_flexarr_available
__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
#endif
};
/* Ancillary data object manipulation macros. */
#if __glibc_c99_flexarr_available
# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
#else
# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
#endif
#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
#define CMSG_FIRSTHDR(mhdr) \
((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)
#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
& (size_t) ~(sizeof (size_t) - 1))
#define CMSG_SPACE(len) (CMSG_ALIGN (len) \
+ CMSG_ALIGN (sizeof (struct cmsghdr)))
#define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
struct cmsghdr *__cmsg) __THROW;
Error message is
2018-02-05 20:40:52,769 FIELD_DECL: BAD RECORD, Bad offset: -2 for cmsg_len
2018-02-05 20:40:52,769 FIELD_DECL: BAD RECORD, Bad offset: -2 for cmsg_level
2018-02-05 20:40:52,769 FIELD_DECL: BAD RECORD, Bad offset: -2 for cmsg_type
2018-02-05 20:40:52,769 FIELD_DECL: BAD RECORD, Bad offset: -2 for __cmsg_data
2018-02-05 20:40:52,769 Bad source code, bitsize == -16 <0 on __cmsg_data
2018-02-05 20:40:52,784 ELABORATED is not handled
2018-02-05 20:40:52,785 _do_nothing for ELABORATED/struct in_addr
2018-02-05 20:40:52,828 PAREN_EXPR is not handled
2018-02-05 20:40:52,828 _do_nothing for PAREN_EXPR/
2018-02-05 20:40:52,828 _do_nothing for PAREN_EXPR/
from ctypeslib.
Is there any hope to fix this?
from ctypeslib.
Hi @XVilka
I think the issue is really with the llvm clang library and python-clang bindings.
The clang library does not provide enough information to the python bindings for this ctypeslib library to be able to accommodate this corner case.
So, the solution would be to produce your test case for clang, and see what clang produces as a result and if the clang primitives return enough information. and propose that as a bug to llvm clang ?
I'm sorry to say, I don't have the cycle to do that myself, right now.
from ctypeslib.
Sure, I will try to do that.
from ctypeslib.
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from ctypeslib.