diff --git a/gdb/ChangeLog b/gdb/ChangeLog index a01206a3e38..8de20e65ed1 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2018-03-07 Andreas Arnez + + * gnu-v3-abi.c (gnuv3_rtti_type): Add early exit if the given + value is not a dynamic class object. + 2018-03-06 Tom Tromey * rust-exp.y: Formatting fixes. diff --git a/gdb/gnu-v3-abi.c b/gdb/gnu-v3-abi.c index 0965846ce61..859187f2e97 100644 --- a/gdb/gnu-v3-abi.c +++ b/gdb/gnu-v3-abi.c @@ -299,8 +299,9 @@ gnuv3_rtti_type (struct value *value, LONGEST offset_to_top; const char *atsign; - /* We only have RTTI for class objects. */ - if (TYPE_CODE (values_type) != TYPE_CODE_STRUCT) + /* We only have RTTI for dynamic class objects. */ + if (TYPE_CODE (values_type) != TYPE_CODE_STRUCT + || !gnuv3_dynamic_class (values_type)) return NULL; /* Determine architecture. */ diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index b7751023126..e177884976a 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-03-07 Andreas Arnez + + * gdb.cp/watch-cp.cc: New test. + * gdb.cp/watch-cp.exp: New file. + 2018-03-06 Andrew Burgess * gdb.base/infcall-nested-structs.exp: New file. diff --git a/gdb/testsuite/gdb.cp/watch-cp.cc b/gdb/testsuite/gdb.cp/watch-cp.cc new file mode 100644 index 00000000000..6954e854c99 --- /dev/null +++ b/gdb/testsuite/gdb.cp/watch-cp.cc @@ -0,0 +1,28 @@ +/* Copyright 2018 Free Software Foundation, Inc. + + This program 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 of the License, or + (at your option) any later version. + + This program 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 program. If not, see . */ + +/* A class that does not have RTTI and is small enough to fit in a + hardware watchpoint on all targets. */ +class smallstuff { public: int n; }; + +smallstuff watchme[5]; + +int +main () +{ + for (int i = 0; i < sizeof (watchme) / sizeof (watchme[0]); i++) + watchme[i].n = i; + return 0; +} diff --git a/gdb/testsuite/gdb.cp/watch-cp.exp b/gdb/testsuite/gdb.cp/watch-cp.exp new file mode 100644 index 00000000000..bdf0f13886c --- /dev/null +++ b/gdb/testsuite/gdb.cp/watch-cp.exp @@ -0,0 +1,35 @@ +# Copyright 2018 Free Software Foundation, Inc. + +# This program 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 of the License, or +# (at your option) any later version. +# +# This program 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 program. If not, see . + +if { [skip_cplus_tests] || [skip_hw_watchpoint_tests]} { continue } + +standard_testfile .cc + +if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} { + return -1 +} + +if ![runto_main] then { + perror "couldn't run to main" + continue +} + +gdb_test "watch watchme\[3\]" "atchpoint .*: watchme.*" "set watchpoint" + +# Verify that a hardware watchpoint is used. +gdb_test "info watchpoints" " hw watchpoint .* watchme.*" + +# Now see whether it actually works. +gdb_test "continue" "Hardware watchpoint .*New value = \\{n = 3\\}.*"