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@@ -1,5 +1,5 @@
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/* Definition for thread-local data handling. NPTL/MIPS version.
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/* Definition for thread-local data handling. NPTL/MIPS version.
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- Copyright (C) 2005 Free Software Foundation, Inc.
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+ Copyright (C) 2005, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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The GNU C Library is free software; you can redistribute it and/or
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@@ -153,6 +153,28 @@ typedef struct
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/* l_tls_offset == 0 is perfectly valid on MIPS, so we have to use some
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/* l_tls_offset == 0 is perfectly valid on MIPS, so we have to use some
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different value to mean unset l_tls_offset. */
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different value to mean unset l_tls_offset. */
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# define NO_TLS_OFFSET -1
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# define NO_TLS_OFFSET -1
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+/* Get and set the global scope generation counter in struct pthread. */
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+#define THREAD_GSCOPE_FLAG_UNUSED 0
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+#define THREAD_GSCOPE_FLAG_USED 1
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+#define THREAD_GSCOPE_FLAG_WAIT 2
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+#define THREAD_GSCOPE_RESET_FLAG() \
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+ do \
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+ { int __res \
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+ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
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+ THREAD_GSCOPE_FLAG_UNUSED); \
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+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
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+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
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+ } \
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+ while (0)
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+#define THREAD_GSCOPE_SET_FLAG() \
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+ do \
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+ { \
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+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
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+ atomic_write_barrier (); \
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+ } \
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+ while (0)
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+#define THREAD_GSCOPE_WAIT() \
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+ GL(dl_wait_lookup_done) ()
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#endif /* __ASSEMBLER__ */
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#endif /* __ASSEMBLER__ */
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