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| author | Richard Henderson <rth@redhat.com> | 2002-05-23 14:00:49 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-05-23 14:00:49 -0700 |
| commit | 244c2241b8ef12958d1414f46ba6006554ebb9e6 (patch) | |
| tree | cd0e2afdc186bf8417bfbbe5a97a375131e4fe98 /gcc | |
| parent | e0082a72651ae718c46e4f3510bba4a116148fc7 (diff) | |
| download | gcc-244c2241b8ef12958d1414f46ba6006554ebb9e6.zip gcc-244c2241b8ef12958d1414f46ba6006554ebb9e6.tar.gz gcc-244c2241b8ef12958d1414f46ba6006554ebb9e6.tar.bz2 | |
extend.texi (C++98 Thread-Local Edits): Update with commentary from Mark.
* doc/extend.texi (C++98 Thread-Local Edits): Update with
commentary from Mark.
From-SVN: r53807
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/doc/extend.texi | 13 |
2 files changed, 13 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 054323d..69160df 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +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): diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 301db237..9d1fc7e 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -6226,8 +6226,8 @@ When used with @code{extern} or @code{static}, @code{__thread} must appear 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 @@ -6237,8 +6237,9 @@ in that thread become invalid. 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 @@ -6379,7 +6380,9 @@ dynamic initialization. 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 |