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Diffstat (limited to 'hwpf/include/ffdc.H')
| -rw-r--r-- | hwpf/include/ffdc.H | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/hwpf/include/ffdc.H b/hwpf/include/ffdc.H new file mode 100644 index 00000000..aa43fc0a --- /dev/null +++ b/hwpf/include/ffdc.H @@ -0,0 +1,191 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: $ */ +/* */ +/* OpenPOWER HostBoot Project */ +/* */ +/* COPYRIGHT International Business Machines Corp. 2011,2014 */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +/** + * @file ffdc.H + * @brief Defines the FirstFailureData class + */ + +#ifndef FAPI2_FFDC_H_ +#define FAPI2_FFDC_H_ + +//#include <memory> +#include <hwp_return_codes.H> +#include <plat_trace.H> +#include <error_info.H> +#include <target.H> + +using fapi2::TARGET_TYPE_ALL; + +namespace fapi2 +{ + /// + /// @brief Check the type of a variable + /// + /// This function can be called to check that a variable type is as expected + /// @note This mechanism will allow for cast ctor's which other static type + /// checking might not. + /// + template<typename T> + inline + void checkType(const T &) {} + + class ReturnCode; +#ifndef FAPI2_NO_FFDC + + /// + /// @class FirstFailureData + /// + /// This class provides storage and methods for creating and manipulating + /// FFDC. + /// It is not needed on all platforms - platforms which need this class have + /// specified this by forcing their fapi2::ReturnCode to be a subclass of + /// this class. + /// + template< class R = fapi2::ReturnCode > + class FirstFailureData + { + public: + + /// + /// @brief Default constructor. + /// @note We don't create our error info be default. It will be created + /// when its needed in the setHwpError() method. Note that dereferencing + /// the error info without will create a problem. + /// + FirstFailureData(void): + iv_info( nullptr ) + {} + + /// + /// @brief Copy Constructor + /// + /// @param[in] i_right Reference to FirstFailureData to copy + /// @note Generates default copy constructor - no deep pointer + /// copies necessary. + /// + FirstFailureData(const FirstFailureData & i_right) = default; + + /// + /// @brief Destructor + /// + ~FirstFailureData(void) = default; + + /// + /// @brief Assignment Operator. + /// + /// @param[in] i_right Reference to FirstFailureData to assign from. + /// @return Reference to 'this' FirstFailureData + /// + FirstFailureData & operator=(const FirstFailureData & i_right) = default; + + /// + /// @brief Sets a HWP error. Sets the rcValue to the supplied value (from + /// the HwpFirstFailureData enumeration) and deletes any + /// associated data. + /// + /// HWP code must call the FAPI_SET_HWP_ERROR macro rather than this + /// function + /// directly to generate an error so that any error information is + /// automatically added to the FirstFailureData + /// + /// @param[in] i_rcValue Error value to set + /// + inline void _setHwpError(const fapi2::HwpReturnCode i_rcValue) + { + FAPI_ERR("_setHwpError: Creating HWP error 0x%x", i_rcValue); + static_cast<R*>(this)->operator=(i_rcValue); + + // Forget about any associated data (this is a new error) + iv_info.reset(new ErrorInfo()); + } + + /// + /// @brief Get a pointer to any PlatData. FirstFailureData is still + /// responsible for deletion of the data. The caller must not + /// delete + /// + /// This is called by PLAT. The expected use-case is to get a pointer to + /// a platform error log. The data pointer should be used immediately in + /// the same thread. + /// + /// @return void *. Pointer to any PlatData. If NULL then no data + /// + void* getData(void) const; + + /// + /// @brief Get a pointer to any PlatData and release ownership from + /// FirstFailureData. The caller is responsible for deletion. + /// + /// This is called by PLAT. The expected use-case is to retrieve a + /// platform error log. + /// + /// @return void*. Pointer to any PlatData. If NULL then no data + /// + void* releaseData(void); + + /// + /// @brief Add ErrorInfo + /// + /// This is called by the FAPI_SET_HWP_ERROR and macro to add ErrorInfo + /// to the FirstFailureData when a HWP generates an error. The function + /// is designed to add all the ErrorInfo at once rather than the + /// FAPI_SET_HWP_ERROR macro making multiple function calls to add each + /// piece of ErrorInfo individually in order to minimize code size + /// + /// @param[in] i_pObjects Pointer to array of const pointers to const + /// objects that are referred to by ErrorInfoEntry objects + /// @param[in] i_pEntries Pointer to array of ErrorInfoEntry objects + /// defining the ErrorInfo that needs to be added + /// @param[in] i_count Number of ErrorInfoEntry entries + /// + void addErrorInfo(const void* const * i_pObjects, + const ErrorInfoEntry* i_pEntries, + const uint8_t i_count); + + /// + /// @brief Get a pointer to any ErrorInfo + /// + /// This is called by PLAT to find information about an error + /// + /// @return ErrorInfo *. Pointer to any ErrorInfo. If NULL then no info + /// + inline const fapi2::ErrorInfo* getErrorInfo(void) const + { return iv_info.get(); } + + /// + /// @brief Forgets about any associated data (PlatData and ErrorInfo) + /// + /// If this is the only FirstFailureData pointing to the data then the + /// data is deleted + /// + inline void forgetData(void) + { iv_info = nullptr; } + + private: + + // Pointer to the data + std::shared_ptr<ErrorInfo> iv_info; + }; +#endif +} +#endif // FAPI2_FFDC_H_ |
