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Diffstat (limited to 'tests/static.at')
| -rw-r--r-- | tests/static.at | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tests/static.at b/tests/static.at new file mode 100644 index 0000000..073719b --- /dev/null +++ b/tests/static.at @@ -0,0 +1,63 @@ +# This file is part of GNU cflow testsuite. -*- Autotest -*- +# Copyright (C) 2006 Sergey Poznyakoff +# +# 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 2, 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, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301 USA. + +AT_SETUP([Static symbols with forward decls and -i^s]) +AT_KEYWORDS([static fdecl]) + +# Up to version 1.1 static symbols with forward declarations caused +# segmentation faults when used with -i^s. +# +# Synopsis: Normally static functions are not added to callee lists +# of their callers in -i^s mode (see add_reference() and call() in parser.c), +# therefore cflow 1.1 assumed it was safe to free them in static_processor(). +# However, there is an important exception: if the function storage type is +# not known at the time of reference. Such functions are added to callee lists +# and freeing them causes coredumps. +# +# To reproduce the case we need two source files: first with the actual test +# program and the second, empty, one, whose purpose is to trigger additional +# memory allocations after symbol deletion. +# +# Reported by: Laurent Fournie +# References: <OFA772D453.E40E7252-ONC12571D8.0046430B-C12571D8.004B043A@rockwellcollins.com> + +AT_DATA([prog],[ +static void foo(); + +int +bar() +{ + foo(); +} + +static void +foo() +{ + int x = 1; +} +]) + +AT_DATA([2],[ +]) + +CFLOW_OPT([-i^s],[ +CFLOW_CHECK_PROG([prog 2], +[bar() <int bar () at prog:5>:]) +]) + +AT_CLEANUP |