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| author | Gabriel Dos Reis <gdr@integrable-solutions.net> | 2006-01-22 17:32:30 +0000 |
|---|---|---|
| committer | Gabriel Dos Reis <gdr@gcc.gnu.org> | 2006-01-22 17:32:30 +0000 |
| commit | 9384e67e4ae1ef2d74ec4eaf4deade9c79d657ab (patch) | |
| tree | f91ab516febe7d7256e9456f0aba7e8aa8dbe0c8 /gcc | |
| parent | dcc21c4c0ae5f44c048e5f016357730395491c8e (diff) | |
| download | gcc-9384e67e4ae1ef2d74ec4eaf4deade9c79d657ab.zip gcc-9384e67e4ae1ef2d74ec4eaf4deade9c79d657ab.tar.gz gcc-9384e67e4ae1ef2d74ec4eaf4deade9c79d657ab.tar.bz2 | |
re PR c++/10891 (code using dynamic_cast causes segfaults when -fno-rtti is used)
2006-01-22 Gabriel Dos Reis <gdr@integrable-solutions.net>
PR c++/10891
* rtti.c (build_dynamic_cast): Reject dynamic_cast use if
-fno-rtti.
testsuite/
2006-01-22 Gabriel Dos Reis <gdr@integrable-solutions.net>
PR c++/10891
* g++.dg/rtti/no-rtti.C: New.
From-SVN: r110092
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/rtti.c | 8 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/rtti/no-rtti.C | 18 |
4 files changed, 37 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index ea7355b..a4ff093 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2006-01-22 Gabriel Dos Reis <gdr@integrable-solutions.net> + + PR c++/10891 + * rtti.c (build_dynamic_cast): Reject dynamic_cast use if + -fno-rtti. + 2006-01-21 Mark Mitchell <mark@codesourcery.com> PR c++/25895 diff --git a/gcc/cp/rtti.c b/gcc/cp/rtti.c index 8a3582d..e8cb52b 100644 --- a/gcc/cp/rtti.c +++ b/gcc/cp/rtti.c @@ -699,6 +699,14 @@ build_dynamic_cast (tree type, tree expr) if (type == error_mark_node || expr == error_mark_node) return error_mark_node; + /* Use of dynamic_cast when -fno-rtti is a disaster waiting to happen. + See PR C++/10891. Reject. */ + if (!flag_rtti) + { + error ("%<dynamic_cast%> not permitted with -fno-rtti"); + return error_mark_node; + } + if (processing_template_decl) { expr = build_min (DYNAMIC_CAST_EXPR, type, expr); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 07aa699..57945e8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2006-01-22 Gabriel Dos Reis <gdr@integrable-solutions.net> + + PR c++/10891 + * g++.dg/rtti/no-rtti.C: New. + 2006-01-21 Mark Mitchell <mark@codesourcery.com> PR c++/25895 diff --git a/gcc/testsuite/g++.dg/rtti/no-rtti.C b/gcc/testsuite/g++.dg/rtti/no-rtti.C new file mode 100644 index 0000000..ca9cb72 --- /dev/null +++ b/gcc/testsuite/g++.dg/rtti/no-rtti.C @@ -0,0 +1,18 @@ +// { dg-do compile } +// { dg-options "-fno-rtti" } + +// PR C++/10891 + +struct A { + virtual ~A() { } +}; + +struct B : A { +}; + +A* f(); + +int main() +{ + B* b = dynamic_cast<B*>(f()); // { dg-error "error: " } +} |