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  • uspace/lib/libc/arch/sparc64/src/fibril.S

    recc83bd r245e8399  
    3535
    3636context_save:
     37        #
     38        # We rely on the kernel to flush our active register windows to memory
     39        # should a thread switch occur.
     40        #
    3741        CONTEXT_SAVE_ARCH_CORE %o0
    3842        retl
     
    4246        #
    4347        # Flush all active windows.
    44         # This is essential, because CONTEXT_LOAD overwrites
    45         # %sp of CWP - 1 with the value written to %fp of CWP.
    46         # Flushing all active windows mitigates this problem
    47         # as CWP - 1 becomes the overlap window.
    48         #               
     48        # This is essential, because CONTEXT_RESTORE_ARCH_CORE overwrites %sp of
     49        # CWP - 1 with the value written to %fp of CWP.  Flushing all active
     50        # windows mitigates this problem as CWP - 1 becomes the overlap window.
     51        #
    4952        flushw
    5053       
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