On Mon, Mar 23, 2015 at 3:56 PM, Ola Liljedahl <[email protected]>
wrote:

> Typedefs to anonymous structs creates problems for C++ programs:
> GCC:
> warning: ‘odp_crypto_op_params’ has a field ‘odp_crypto_op_params::pkt’
> whose type uses the anonymous namespace
> error: anonymous type with no linkage used to declare function
> ‘<anonymous struct>* ppp_packet::get_queue() const’ with linkage
> CLANG:
> extern odp_pool_t tmo_pool;
> warning: variable 'tmo_pool' has internal linkage but is not defined
> When linking:
> undefined reference to `tmo_pool'
>
> The solution is to add a (unique) name to all structs used by the strong
> typing typedefs.
>
> Signed-off-by: Ola Liljedahl <[email protected]>
>

Reviewed-and-tested-by: Bill Fischofer <[email protected]>


> ---
> (This document/code contribution attached is provided under the terms of
> agreement LES-LTM-21309)
>
> v2:
> Restored doxygen support.
>
>  doc/doxygen.cfg                                                | 3 ++-
>  platform/linux-generic/include/odp/plat/buffer_types.h         | 4 ++--
>  platform/linux-generic/include/odp/plat/classification_types.h | 8
> ++++----
>  platform/linux-generic/include/odp/plat/crypto_types.h         | 2 +-
>  platform/linux-generic/include/odp/plat/event_types.h          | 2 +-
>  platform/linux-generic/include/odp/plat/packet_io_types.h      | 2 +-
>  platform/linux-generic/include/odp/plat/packet_types.h         | 4 ++--
>  platform/linux-generic/include/odp/plat/pool_types.h           | 2 +-
>  platform/linux-generic/include/odp/plat/queue_types.h          | 4 ++--
>  platform/linux-generic/include/odp/plat/shared_memory_types.h  | 2 +-
>  platform/linux-generic/include/odp/plat/strong_types.h         | 6 ++++++
>  11 files changed, 23 insertions(+), 16 deletions(-)
>
> diff --git a/doc/doxygen.cfg b/doc/doxygen.cfg
> index 2d45a76..52c83a9 100644
> --- a/doc/doxygen.cfg
> +++ b/doc/doxygen.cfg
> @@ -38,5 +38,6 @@ PREDEFINED = __GNUC__ \
>              __BIG_ENDIAN_BITFIELD \
>              __LITTLE_ENDIAN_BITFIELD \
>              __x86_64__ \
> -            ODP_PACKED
> +            ODP_PACKED \
> +            "ODP_HANDLE_T(type)=odp_handle_t type"
>  INTERNAL_DOCS = YES
> diff --git a/platform/linux-generic/include/odp/plat/buffer_types.h
> b/platform/linux-generic/include/odp/plat/buffer_types.h
> index 3e7070e..0c017ae 100644
> --- a/platform/linux-generic/include/odp/plat/buffer_types.h
> +++ b/platform/linux-generic/include/odp/plat/buffer_types.h
> @@ -26,13 +26,13 @@ extern "C" {
>   */
>
>  /** ODP buffer */
> -typedef odp_handle_t odp_buffer_t;
> +typedef ODP_HANDLE_T(odp_buffer_t);
>
>  /** Invalid buffer */
>  #define ODP_BUFFER_INVALID _odp_cast_scalar(odp_buffer_t, 0xffffffff)
>
>  /** ODP buffer segment */
> -typedef odp_handle_t odp_buffer_seg_t;
> +typedef ODP_HANDLE_T(odp_buffer_seg_t);
>
>  /** Invalid segment */
>  #define ODP_SEGMENT_INVALID ((odp_buffer_seg_t)ODP_BUFFER_INVALID)
> diff --git
> a/platform/linux-generic/include/odp/plat/classification_types.h
> b/platform/linux-generic/include/odp/plat/classification_types.h
> index 042d8c8..767da7d 100644
> --- a/platform/linux-generic/include/odp/plat/classification_types.h
> +++ b/platform/linux-generic/include/odp/plat/classification_types.h
> @@ -23,18 +23,18 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_cos_t;
> -typedef odp_handle_t odp_flowsig_t;
> +typedef ODP_HANDLE_T(odp_cos_t);
> +typedef ODP_HANDLE_T(odp_flowsig_t);
>
>  #define ODP_COS_INVALID  _odp_cast_scalar(odp_cos_t, ~0)
>  #define ODP_COS_NAME_LEN 32
>
>  typedef uint16_t odp_cos_flow_set_t;
>
> -typedef odp_handle_t odp_pmr_t;
> +typedef ODP_HANDLE_T(odp_pmr_t);
>  #define ODP_PMR_INVAL _odp_cast_scalar(odp_pmr_t, ~0)
>
> -typedef odp_handle_t odp_pmr_set_t;
> +typedef ODP_HANDLE_T(odp_pmr_set_t);
>  #define ODP_PMR_SET_INVAL _odp_cast_scalar(odp_pmr_set_t, ~0)
>
>  /** Get printable format of odp_cos_t */
> diff --git a/platform/linux-generic/include/odp/plat/crypto_types.h
> b/platform/linux-generic/include/odp/plat/crypto_types.h
> index 1b10a5d..a91d88e 100644
> --- a/platform/linux-generic/include/odp/plat/crypto_types.h
> +++ b/platform/linux-generic/include/odp/plat/crypto_types.h
> @@ -25,7 +25,7 @@ extern "C" {
>  #define ODP_CRYPTO_SESSION_INVALID (0xffffffffffffffffULL)
>
>  typedef uint64_t odp_crypto_session_t;
> -typedef odp_handle_t odp_crypto_compl_t;
> +typedef ODP_HANDLE_T(odp_crypto_compl_t);
>
>  enum odp_crypto_op_mode {
>         ODP_CRYPTO_SYNC,
> diff --git a/platform/linux-generic/include/odp/plat/event_types.h
> b/platform/linux-generic/include/odp/plat/event_types.h
> index 24be22f..d91937d 100644
> --- a/platform/linux-generic/include/odp/plat/event_types.h
> +++ b/platform/linux-generic/include/odp/plat/event_types.h
> @@ -26,7 +26,7 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_event_t;
> +typedef ODP_HANDLE_T(odp_event_t);
>
>  #define ODP_EVENT_INVALID _odp_cast_scalar(odp_event_t, 0xffffffff)
>
> diff --git a/platform/linux-generic/include/odp/plat/packet_io_types.h
> b/platform/linux-generic/include/odp/plat/packet_io_types.h
> index 60592e3..3cc64c6 100644
> --- a/platform/linux-generic/include/odp/plat/packet_io_types.h
> +++ b/platform/linux-generic/include/odp/plat/packet_io_types.h
> @@ -26,7 +26,7 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_pktio_t;
> +typedef ODP_HANDLE_T(odp_pktio_t);
>
>  #define ODP_PKTIO_INVALID _odp_cast_scalar(odp_pktio_t, 0)
>
> diff --git a/platform/linux-generic/include/odp/plat/packet_types.h
> b/platform/linux-generic/include/odp/plat/packet_types.h
> index 57e9662..45cb801 100644
> --- a/platform/linux-generic/include/odp/plat/packet_types.h
> +++ b/platform/linux-generic/include/odp/plat/packet_types.h
> @@ -26,13 +26,13 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_packet_t;
> +typedef ODP_HANDLE_T(odp_packet_t);
>
>  #define ODP_PACKET_INVALID _odp_cast_scalar(odp_packet_t, 0xffffffff)
>
>  #define ODP_PACKET_OFFSET_INVALID (0x0fffffff)
>
> -typedef odp_handle_t odp_packet_seg_t;
> +typedef ODP_HANDLE_T(odp_packet_seg_t);
>
>  #define ODP_PACKET_SEG_INVALID _odp_cast_scalar(odp_packet_seg_t,
> 0xffffffff)
>
> diff --git a/platform/linux-generic/include/odp/plat/pool_types.h
> b/platform/linux-generic/include/odp/plat/pool_types.h
> index 71c7783..568556f 100644
> --- a/platform/linux-generic/include/odp/plat/pool_types.h
> +++ b/platform/linux-generic/include/odp/plat/pool_types.h
> @@ -25,7 +25,7 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_pool_t;
> +typedef ODP_HANDLE_T(odp_pool_t);
>
>  #define ODP_POOL_INVALID _odp_cast_scalar(odp_pool_t, 0xffffffff)
>
> diff --git a/platform/linux-generic/include/odp/plat/queue_types.h
> b/platform/linux-generic/include/odp/plat/queue_types.h
> index 04a0be9..1cecc90 100644
> --- a/platform/linux-generic/include/odp/plat/queue_types.h
> +++ b/platform/linux-generic/include/odp/plat/queue_types.h
> @@ -25,9 +25,9 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_queue_t;
> +typedef ODP_HANDLE_T(odp_queue_t);
>
> -typedef odp_handle_t odp_queue_group_t;
> +typedef ODP_HANDLE_T(odp_queue_group_t);
>
>  #define ODP_QUEUE_INVALID  _odp_cast_scalar(odp_queue_t, 0)
>
> diff --git a/platform/linux-generic/include/odp/plat/shared_memory_types.h
> b/platform/linux-generic/include/odp/plat/shared_memory_types.h
> index d2e92cf..4be7356 100644
> --- a/platform/linux-generic/include/odp/plat/shared_memory_types.h
> +++ b/platform/linux-generic/include/odp/plat/shared_memory_types.h
> @@ -26,7 +26,7 @@ extern "C" {
>   *  @{
>   */
>
> -typedef odp_handle_t odp_shm_t;
> +typedef ODP_HANDLE_T(odp_shm_t);
>
>  #define ODP_SHM_INVALID _odp_cast_scalar(odp_shm_t, 0)
>  #define ODP_SHM_NULL ODP_SHM_INVALID
> diff --git a/platform/linux-generic/include/odp/plat/strong_types.h
> b/platform/linux-generic/include/odp/plat/strong_types.h
> index cd15853..a53d763 100644
> --- a/platform/linux-generic/include/odp/plat/strong_types.h
> +++ b/platform/linux-generic/include/odp/plat/strong_types.h
> @@ -16,7 +16,13 @@
>  #define STRONG_TYPES_H_
>
>  /** Use strong typing for ODP types */
> +#ifdef __cplusplus
> +#define ODP_HANDLE_T(type) struct _##type { uint8_t unused_dummy_var; }
> *type
> +#else
>  #define odp_handle_t struct { uint8_t unused_dummy_var; } *
> +/** C/C++ helper macro for strong typing */
> +#define ODP_HANDLE_T(type) odp_handle_t type
> +#endif
>
>  /** Internal macro to get value of an ODP handle */
>  #define _odp_typeval(handle) ((uint32_t)(uintptr_t)(handle))
> --
> 1.9.1
>
>
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>
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