From 1f267ae3d18c165f8b4327aa423b909eae92f4d6 Mon Sep 17 00:00:00 2001 From: Markus Metzger Date: Mon, 30 Jun 2014 11:47:30 +0200 Subject: reverse-finish: turn internal error into normal error The reverse-finish command results in an internal error if it cannot determine the current function. (gdb) c Continuing. Program received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () (gdb) reverse-finish Run back to call of #0 0x0000000000000000 in ?? () gdb/infcmd.c:1576: internal-error: Finish: couldn't find function. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) y This is not an internal error case since the command may be used in scenarios where there is no function at the current PC, e.g. after calling through a bad function pointer. Turn this into a normal error. gdb/ * infcmd.c (finish_backward): Turn internal error into normal error. testsuite/ * gdb.btrace/segv.c: New. * gdb.btrace/segv.exp: New. --- gdb/testsuite/gdb.btrace/segv.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 gdb/testsuite/gdb.btrace/segv.c (limited to 'gdb/testsuite/gdb.btrace/segv.c') diff --git a/gdb/testsuite/gdb.btrace/segv.c b/gdb/testsuite/gdb.btrace/segv.c new file mode 100644 index 0000000..6b3ca0a --- /dev/null +++ b/gdb/testsuite/gdb.btrace/segv.c @@ -0,0 +1,32 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2014 Free Software Foundation, Inc. + + Contributed by Intel Corp. + + 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 . */ + +static int (*fun)(int); + +int +test (void) +{ + return fun (42); /* test.call */ +} + +int +main (void) +{ + return test (); +} -- cgit v1.1