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Merge branch 'backport-3398-futex-errno-glib-2-76' into 'glib-2-76'
Backport !3398 “Avoid having g_futex_simple() inadvertently modify errno” to glib-2-76 See merge request GNOME/glib!3402
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@@ -65,9 +65,13 @@ struct _GRealThread
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#define g_futex_simple(uaddr, futex_op, ...) \
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G_STMT_START \
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{ \
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int saved_errno = errno; \
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int res = syscall (__NR_futex_time64, uaddr, (gsize) futex_op, __VA_ARGS__); \
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if (res < 0 && errno == ENOSYS) \
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syscall (__NR_futex, uaddr, (gsize) futex_op, __VA_ARGS__); \
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{ \
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errno = saved_errno; \
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syscall (__NR_futex, uaddr, (gsize) futex_op, __VA_ARGS__); \
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} \
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} \
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G_STMT_END
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#elif defined(__NR_futex_time64)
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