1 # Copyright 2003-2015 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # Tests for PR gdb/1250.
17 # 2003-07-15 Michael Chastain <mec@shout.net>
19 # This file is part of the gdb testsuite.
22 # test running programs
27 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
32 clean_restart ${binfile}
34 if ![runto abort {allow-pending}] then {
38 # See http://sources.redhat.com/gdb/bugs/1250
40 # In a nutshell: the function 'beta' ends with a call to 'abort', which
41 # is a noreturn function. So the last instruction of 'beta' is a call
42 # to 'abort'. When gdb looks for information about the caller of
43 # 'beta', it looks at the instruction after the call to 'abort' -- which
44 # is the first instruction of 'alpha'! So gdb uses the wrong frame
45 # information. It thinks that the test program is in 'alpha' and that
46 # the prologue "push %ebp / mov %esp,%ebp" has not been executed yet,
47 # and grabs the wrong values.
49 # By the nature of the bug, it could pass if the C compiler is not smart
50 # enough to implement 'abort' as a noreturn function. This is okay.
51 # The real point is that users often put breakpoints on noreturn
52 # functions such as 'abort' or some kind of exitting function, and those
53 # breakpoints should work.
55 gdb_test_multiple "backtrace" "backtrace from abort" {
56 -re "#0.*abort.*\r\n#1.*beta.*\r\n#2.*alpha.*\r\n#3.*main.*\r\n$gdb_prompt $" {
57 pass "backtrace from abort"
59 -re "#0.*abort.*\r\n#1.*beta.*\r\n$gdb_prompt $" {
60 # This happens with gdb HEAD as of 2003-07-13, with gcc 3.3,
61 # binutils 2.14, either -gdwarf-2 or -gstabs+, on native
64 # gdb gets 'abort' and 'beta' right and then goes into the
66 kfail "gdb/1250" "backtrace from abort"