GCC libquadmath

Introduction

This manual documents the usage and internals of libitm, the GNU Transactional Memory Library. It provides transaction support for accesses to a process’ memory, enabling easy-to-use synchronization of accesses to shared memory by several threads.

• Copyright
• Enabling libitm
• C/C++ Language Constructs for TM
• The libitm ABI
  • [No changes] Objectives
  • [No changes] Non-objectives
  • Library design principles
    • [No changes] Calling conventions
    • [No changes] TM library algorithms
    • [No changes] Optimized load and store routines
    • [No changes] Aligned load and store routines
    • Data logging functions
    • [No changes] Scatter/gather calls
    • [No changes] Serial and irrevocable mode
    • [No changes] Transaction descriptor
    • Store allocation
    • [No changes] Naming conventions
    • Function pointer encryption
  • Types and macros list
  • Function list
    • Initialization and finalization functions
    • [No changes] Version checking
    • [No changes] Error reporting
    • [No changes] inTransaction call
    • State manipulation functions
    • [No changes] Source locations
    • Starting a transaction
      • Transaction code properties
      • [No changes] Windows exception state
      • [No changes] Other machine state
      • [No changes] Results from beginTransaction
    • Aborting a transaction
    • Committing a transaction
    • Exception handling support
    • [No changes] Transition to serial–irrevocable mode
    • [No changes] Data transfer functions
    • [No changes] Transactional memory copies
    • Transactional versions of memmove
    • [No changes] Transactional versions of memset
    • [No changes] Logging functions
    • User-registered commit and undo actions
    • [New] Transactional indirect calls
    • [New] Transactional dynamic memory management
  • [No changes] Future Enhancements to the ABI
  • Sample code
  • [New] Memory model
• Internals
  • TM methods and method groups
    • TM method life cycle
    • Selecting the default method
  • Nesting: flat vs. closed
  • Locking conventions
    • State-to-lock mapping
    • Lock acquisition order
    • Serial lock implementation
    • Reentrancy
    • Privatization safety
    • Progress guarantees
• GNU Free Documentation License
  • Preamble
  • 1. APPLICABILITY AND DEFINITIONS
  • 2. VERBATIM COPYING
  • 3. COPYING IN QUANTITY
  • 4. MODIFICATIONS
  • 5. COMBINING DOCUMENTS
  • 6. COLLECTIONS OF DOCUMENTS
  • 7. AGGREGATION WITH INDEPENDENT WORKS
  • 8. TRANSLATION
  • 9. TERMINATION
  • 10. FUTURE REVISIONS OF THIS LICENSE
  • 11. RELICENSING
  • ADDENDUM: How to use this License for your documents
• Indexes and tables
  • TODO