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author | Andrew Hsieh <andrewhsieh@google.com> | 2014-04-21 17:19:53 -0700 |
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committer | Andrew Hsieh <andrewhsieh@google.com> | 2014-04-21 17:22:50 -0700 |
commit | af62f7eeca255ab8e646f9903809f39f0881a6f2 (patch) | |
tree | 88ae81eb812c2b5ea36a70618ed9b2de4dbb01dd /gcc-4.6 | |
parent | f33c7b3122b1d7950efa88067c9a156229ba647b (diff) | |
download | toolchain_gcc-af62f7eeca255ab8e646f9903809f39f0881a6f2.tar.gz toolchain_gcc-af62f7eeca255ab8e646f9903809f39f0881a6f2.tar.bz2 toolchain_gcc-af62f7eeca255ab8e646f9903809f39f0881a6f2.zip |
[4.6, 4.8] Backport fix PR libstdc++/59392: Fix ARM EABI uncaught throw from unexpected exception handler
http://gcc.gnu.org/viewcvs/gcc?view=revision&revision=208519
2014-03-12 Roland McGrath <mcgrathr@google.com>
Mark Seaborn <mseaborn@google.com>
libstdc++-v3/
PR libstdc++/59392
* libsupc++/eh_call.cc (__cxa_call_unexpected): Call __do_catch with
the address of a null pointer, not with a null pointer to pointer.
Copy comment for this case from eh_personality.cc:__cxa_call_unexpected.
* testsuite/18_support/bad_exception/59392.cc: New file.
Change-Id: I14e060bccb72881ba8d7e24022d429cd304e2ae3
Diffstat (limited to 'gcc-4.6')
-rw-r--r-- | gcc-4.6/libstdc++-v3/libsupc++/eh_call.cc | 16 | ||||
-rw-r--r-- | gcc-4.6/libstdc++-v3/testsuite/18_support/bad_exception/59392.cc | 51 |
2 files changed, 61 insertions, 6 deletions
diff --git a/gcc-4.6/libstdc++-v3/libsupc++/eh_call.cc b/gcc-4.6/libstdc++-v3/libsupc++/eh_call.cc index f519f35f0..f8f403f57 100644 --- a/gcc-4.6/libstdc++-v3/libsupc++/eh_call.cc +++ b/gcc-4.6/libstdc++-v3/libsupc++/eh_call.cc @@ -105,14 +105,14 @@ __cxa_call_unexpected(void* exc_obj_in) } end_catch_protect_obj; - __try - { + __try + { if (foreign_exception) std::unexpected(); else __unexpected(unexpectedHandler); } - __catch(...) + __catch(...) { /* See if the new exception matches the rtti list. */ if (foreign_exception) @@ -141,15 +141,19 @@ __cxa_call_unexpected(void* exc_obj_in) &new_ptr) != ctm_failed) __throw_exception_again; - if (catch_type->__do_catch(&bad_exc, 0, 1)) + // If the exception spec allows std::bad_exception, throw that. + // We don't have a thrown object to compare against, but since + // bad_exception doesn't have virtual bases, that's OK; just pass NULL. + void* obj = NULL; + if (catch_type->__do_catch(&bad_exc, &obj, 1)) bad_exception_allowed = true; } // If the exception spec allows std::bad_exception, throw that. -#ifdef __EXCEPTIONS +#ifdef __EXCEPTIONS if (bad_exception_allowed) throw std::bad_exception(); -#endif +#endif // Otherwise, die. __terminate(terminateHandler); diff --git a/gcc-4.6/libstdc++-v3/testsuite/18_support/bad_exception/59392.cc b/gcc-4.6/libstdc++-v3/testsuite/18_support/bad_exception/59392.cc new file mode 100644 index 000000000..c9b65a2c3 --- /dev/null +++ b/gcc-4.6/libstdc++-v3/testsuite/18_support/bad_exception/59392.cc @@ -0,0 +1,51 @@ +// Copyright (C) 2014 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <exception> +#include <cstdlib> + +class expected {}; +class unexpected {}; +class from_handler {}; + +static void func_with_exception_spec() throw(expected) +{ + throw unexpected(); +} + +static void unexpected_handler() +{ + throw from_handler(); +} + +static void terminate_handler() +{ + exit(0); +} + +// libstdc++/59392 +int main() +{ + std::set_unexpected(unexpected_handler); + std::set_terminate(terminate_handler); + try { + func_with_exception_spec(); + } catch (expected&) { + abort(); + } + abort(); +} |