+2002-05-23 Richard Henderson <rth@redhat.com>
+
+ * doc/extend.texi (C++98 Thread-Local Edits): Update with
+ commentary from Mark.
+
2002-05-23 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
* bb-reorder.c (make_reorder_chain, make_reorder_chain_1):
immediately after the other storage class specifier.
The @code{__thread} specifier may be applied to any global, file-scoped
-static, function-scoped static, or class-scoped static variable. It may
-not be applied to block-scoped automatic or class-scoped member variables.
+static, function-scoped static, or static data member of a class. It may
+not be applied to block-scoped automatic or non-static data member.
When the address-of operator is applied to a thread-local variable, it is
evaluated at run-time and returns the address of the current thread's
No static initialization may refer to the address of a thread-local variable.
-In C++, a thread-local variable may not be initialized at runtime,
-that is, either by a static constructor or a non-constant expression.
+In C++, if an initializer is present for a thread-local variable, it must
+be a @var{constant-expression}, as defined in 5.19.2 of the ANSI/ISO C++
+standard.
See @uref{http://people.redhat.com/drepper/tls.pdf,
ELF Handling For Thread-Local Storage} for a detailed explanation of
Add after paragraph 3
@quotation
-An object of thread storage duration shall not require a destructor.
+The type of an object with thread storage duration shall not have a
+non-trivial destructor, nor shall it be an array type whose elements
+(directly or indirectly) have non-trivial destructors.
@end quotation
@item