binutils-gdb/gdb/testsuite/gdb.cp/scope-err.cc

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PR 18303, Tolerate malformed input for lookup_symbol-called functions lookup_symbol is often called with user input. Consequently, any function called from lookup_symbol{,_in_language} should attempt to deal with malformed input gracefully. After all, malformed user input is not a programming/API error. This patch does not attempt to find/correct all instances of this. It only fixes locations in the code that trigger test suite failures. This patch fixes PR breakpoints/18303, "Assertion: -breakpoint-insert with windows paths of file in non-current directory". The patch includes three new tests related to this. One is just gdb.linespec/ls-errs.exp copied and converted to use C++ instead of C, and to add a case using a file name containing a Windows-style logical drive specifier. The others include an MI test to provide a regression test for the specific case reported in PR 18303, and a C++ test for proper error handling of access to a program variable when using a file scope specifier that refers to a non-existent file. Tested on x86_64 native Linux. gdb/ChangeLog 2016-01-28 Keith Seitz <keiths@redhat.com> PR breakpoints/18303 * cp-namespace.c (cp_lookup_bare_symbol): Change assertion to look for "::" instead of simply ":". (cp_search_static_and_baseclasses): Return null_block_symbol for malformed input. Remove assertions. * cp-support.c (cp_find_first_component_aux): Do not return a prefix length for ':' unless the next character is also ':'. gdb/testsuite/ChangeLog 2016-01-28 Don Breazeal <donb@codesourcery.com> * gdb.cp/scope-err.cc: New test program. * gdb.cp/scope-err.exp: New test script. * gdb.linespec/ls-errs.c (myfunction): Expanded to have multiple lines and "set breakpoint here" comment. * gdb.linespec/ls-errs.exp: Added C++ testing and new test case. Fixed some whitespace and format issues. * gdb.mi/mi-linespec-err-cp.cc: New test program. * gdb.mi/mi-linespec-err-cp.exp: New test script.
2016-03-16 06:18:28 +08:00
/* This testcase is part of GDB, the GNU debugger.
Copyright 2016 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 <http://www.gnu.org/licenses/>. */
int
myfunction (int aa)
{
int i;
i = aa + 42;
return i; /* set breakpoint here */
}
int
main (void)
{
int a;
a = myfunction (a);
return a;
}