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Update users manual to indicate: 

1) clang++ must be used when linking C++ programs using -fsanitize=undefined, and
  2) MSan can't be combined with TSan or ASan.

llvm-svn: 186711
This commit is contained in:
Richard Smith 2013-07-19 19:06:48 +00:00
parent 0aa60efe9c
commit 83c728b581
1 changed files with 11 additions and 3 deletions
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14
clang/docs/UsersManual.rst
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@ -971,9 +971,17 @@ are listed below.
group.
The ``-fsanitize=`` argument must also be provided when linking, in
order to link to the appropriate runtime library. It is not possible
to combine the ``-fsanitize=address`` and ``-fsanitize=thread``
checkers in the same program.
order to link to the appropriate runtime library. When using
``-fsanitize=vptr`` (or a group that includes it, such as
``-fsanitize=undefined``) with a C++ program, the link must be
performed by ``clang++``, not ``clang``, in order to link against the
C++-specific parts of the runtime library.
It is not possible to combine more than one of the ``-fsanitize=address``,
``-fsanitize=thread``, and ``-fsanitize=memory`` checkers in the same
program. The ``-fsanitize=undefined`` checks can be combined with other
sanitizers.
**-f[no-]address-sanitizer**
Deprecated synonym for :ref:`-f[no-]sanitize=address
<opt_fsanitize_address>`.