• Robert Moore's avatar
    ACPICA 20050708 from Bob Moore <robert.moore@intel.com> · f9f4601f
    Robert Moore authored
    
    
    The use of the CPU stack in the debug version of the
    subsystem has been considerably reduced.  Previously, a
    debug structure was declared in every function that used
    the debug macros.  This structure has been removed in
    favor of declaring the individual elements as parameters
    to the debug functions.  This reduces the cumulative stack
    use during nested execution of ACPI function calls at the
    cost of a small increase in the code size of the debug
    version of the subsystem.  With assistance from Alexey
    Starikovskiy and Len Brown.
    
    Added the ACPI_GET_FUNCTION_NAME macro to enable the
    compiler-dependent headers to define a macro that will
    return the current function name at runtime (such as
    __FUNCTION__ or _func_, etc.) The function name is used
    by the debug trace output.  If ACPI_GET_FUNCTION_NAME
    is not defined in the compiler-dependent header, the
    function name is saved on the CPU stack (one pointer per
    function.) This mechanism is used because apparently there
    exists no standard ANSI-C defined macro that that returns
    the function name.
    
    Alexey Starikovskiy redesigned and reimplemented the
    "Owner ID" mechanism used to track namespace objects
    created/deleted by ACPI tables and control method
    execution.  A bitmap is now used to allocate and free the
    IDs, thus solving the wraparound problem present in the
    previous implementation.  The size of the namespace node
    descriptor was reduced by 2 bytes as a result.
    
    Removed the UINT32_BIT and UINT16_BIT types that were used
    for the bitfield flag definitions within the headers for
    the predefined ACPI tables.  These have been replaced by
    UINT8_BIT in order to increase the code portability of
    the subsystem.  If the use of UINT8 remains a problem,
    we may be forced to eliminate bitfields entirely because
    of a lack of portability.
    
    Alexey Starikovksiy enhanced the performance of
    acpi_ut_update_object_reference.  This is a frequently used
    function and this improvement increases the performance
    of the entire subsystem.
    
    Alexey Starikovskiy fixed several possible memory leaks
    and the inverse - premature object deletion.
    Signed-off-by: default avatarLen Brown <len.brown@intel.com>
    f9f4601f
acexcep.h 12.7 KB