[Bug sanitizer/59353] New: -fsanitize=return is not documented

[Bug sanitizer/59353] New: -fsanitize=return is not documented

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59353

            Bug ID: 59353
           Summary: -fsanitize=return is not documented
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: documentation
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org,
                    mpolacek at gcc dot gnu.org

Seems as if -fsanitize=return is now supported, but now yet documented in
invoke.texi

[Bug sanitizer/59353] -fsanitize=return is not documented

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59353

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
And looking at
https://code.google.com/p/address-sanitizer/wiki/ExampleUseAfterReturn - it
seems as if the options is called -fsanitize=use-after-return with Clang.
Having different names for the same feature is a bit unfortunate, too.
Especially as GCC -fsanitize= links to Wiki pages which are Clang centric.

[Bug sanitizer/59353] -fsanitize=return is not documented

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59353

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-11-30
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |4.9.0
     Ever confirmed|0                           |1

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
As for the doc, I'll do it.

But note that -fsanitize=return and -fsanitize=use-after-return are two
different options: -fsanitize=return is a part of ubsan and checks that the
function doesn't have a missing "return" statement (currently done only for
C++).
-fsanitize=use-after-return is described in the link you provided and is a part
of asan.

[Bug sanitizer/59353] -fsanitize=return is not documented

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59353

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Mon Dec  2 20:39:25 2013
New Revision: 205601

URL: http://gcc.gnu.org/viewcvs?rev=205601&root=gcc&view=rev
Log:
    PR sanitizer/59353
    * doc/invoke.texi: Document -fsanitize=return.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi

[Bug sanitizer/59353] -fsanitize=return is not documented

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59353

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed.