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Generally adds support to declare variables as thread_local - Add support in HBRT start assembly to skip adjusting TLS relocations - Add support in linker to generate tagged TLS entries - Update linker to process TLS relocations correctly - Update TLS code to ignore top half of module ID - Update module images to hold a "module ID" - Update custome linker to update module ID during binary link - Update TLS code to track TLS sections via module ID Change-Id: I1589550d7787beb08827ca24a728397dedf0373b RTC: 147599 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/71709 Reviewed-by: Ilya Smirnov <ismirno@us.ibm.com> Reviewed-by: Michael Baiocchi <mbaiocch@us.ibm.com> Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com> Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com> Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
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| /* IBM_PROLOG_BEGIN_TAG */ | ||
| /* This is an automatically generated prolog. */ | ||
| /* */ | ||
| /* $Source: src/include/util/nolockfree/stack.H $ */ | ||
| /* */ | ||
| /* OpenPOWER HostBoot Project */ | ||
| /* */ | ||
| /* Contributors Listed Below - COPYRIGHT 2010,2019 */ | ||
| /* [+] International Business Machines Corp. */ | ||
| /* */ | ||
| /* */ | ||
| /* 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 */ | ||
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| #ifndef __UTIL_NOLOCKFREE_STACK_H | ||
| #define __UTIL_NOLOCKFREE_STACK_H | ||
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| #include <stddef.h> | ||
| #include <assert.h> | ||
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| namespace Util | ||
| { | ||
| namespace NoLockFree | ||
| { | ||
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| /** | ||
| * @brief Non-lockfree stack implementation | ||
| * | ||
| * This is an intrusive container design, meaning elements being | ||
| * added to the stack must have a 'next' member of _T* type. This | ||
| * container is not threadsafe. | ||
| * | ||
| * @note: For a lockfree stack implementation, see Util::LockFree::Stack | ||
| */ | ||
| template <typename _T> | ||
| class Stack | ||
| { | ||
| public: | ||
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| /** | ||
| * @brief Constructor | ||
| */ | ||
| Stack() | ||
| : head(nullptr) | ||
| { | ||
| } | ||
|
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| /** | ||
| * @brief Pop an element from the stack. | ||
| * | ||
| * @return _T* The pointer to the element popped from the stack | ||
| */ | ||
| _T* pop(); | ||
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| /** | ||
| * @brief Push an element to the stack. | ||
| * | ||
| * @param[in] p Pointer to the element to add to the stack. | ||
| */ | ||
| void push(_T* p); | ||
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| /** | ||
| * @brief Get a pointer to the first element in the stack | ||
| * | ||
| * @return _T* The pointer to the first element | ||
| * @Note: SMP safety of this pointer is not guaranteed. | ||
| */ | ||
| _T* first(); | ||
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| private: | ||
| _T* head; | ||
| }; | ||
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| template <typename _T> | ||
| _T* Stack<_T>::first() | ||
| { | ||
| return head; | ||
| } | ||
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| template <typename _T> | ||
| _T* Stack<_T>::pop() | ||
| { | ||
| auto original = head; | ||
| if (unlikely(nullptr == original)) | ||
| { | ||
| return nullptr; | ||
| } | ||
| head = original->next; | ||
| return original; | ||
| } | ||
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| template <typename _T> | ||
| void Stack<_T>::push(_T* p) | ||
| { | ||
| p->next = head; | ||
| head = p; | ||
| } | ||
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| } // End NoLockFree namespace | ||
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| } // End Util namespace | ||
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| #endif // __UTIL_NOLOCKFREE_STACK_H | ||
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