81 lines
2.8 KiB
Text
81 lines
2.8 KiB
Text
|
# Copyright 2003 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 2 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, write to the Free Software
|
||
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
|
||
|
|
# Tests for PR gdb/1250.
|
||
|
|
# 2003-07-15 Michael Chastain <mec@shout.net>
|
||
|
|
|
||
|
|
# This file is part of the gdb testsuite.
|
||
|
|
|
||
|
|
if $tracelevel then {
|
||
|
|
strace $tracelevel
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# test running programs
|
||
|
|
#
|
||
|
|
set prms_id 0
|
||
|
|
set bug_id 0
|
||
|
|
|
||
|
|
set testfile "gdb1250"
|
||
|
|
set srcfile ${testfile}.c
|
||
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
||
|
|
|
||
|
|
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
||
|
|
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
|
||
|
|
}
|
||
|
|
|
||
|
|
gdb_exit
|
||
|
|
gdb_start
|
||
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
||
|
|
gdb_load ${binfile}
|
||
|
|
|
||
|
|
if ![runto abort] then {
|
||
|
|
perror "couldn't run to breakpoint"
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
# See http://sources.redhat.com/gdb/bugs/1250
|
||
|
|
#
|
||
|
|
# In a nutshell: the function 'beta' ends with a call to 'abort', which
|
||
|
|
# is a noreturn function. So the last instruction of 'beta' is a call
|
||
|
|
# to 'abort'. When gdb looks for information about the caller of
|
||
|
|
# 'beta', it looks at the instruction after the call to 'abort' -- which
|
||
|
|
# is the first instruction of 'alpha'! So gdb uses the wrong frame
|
||
|
|
# information. It thinks that the test program is in 'alpha' and that
|
||
|
|
# the prologue "push %ebp / mov %esp,%ebp" has not been executed yet,
|
||
|
|
# and grabs the wrong values.
|
||
|
|
#
|
||
|
|
# By the nature of the bug, it could pass if the C compiler is not smart
|
||
|
|
# enough to implement 'abort' as a noreturn function. This is okay.
|
||
|
|
# The real point is that users often put breakpoints on noreturn
|
||
|
|
# functions such as 'abort' or some kind of exitting function, and those
|
||
|
|
# breakpoints should work.
|
||
|
|
|
||
|
|
gdb_test_multiple "backtrace" "backtrace from abort" {
|
||
|
|
-re "#0.*abort.*\r\n#1.*beta.*\r\n#2.*alpha.*\r\n#3.*main.*\r\n$gdb_prompt $" {
|
||
|
|
pass "backtrace from abort"
|
||
|
|
}
|
||
|
|
-re "#0.*abort.*\r\n#1.*beta.*\r\n$gdb_prompt $" {
|
||
|
|
# This happens with gdb HEAD as of 2003-07-13, with gcc 3.3,
|
||
|
|
# binutils 2.14, either -gdwarf-2 or -gstabs+, on native
|
||
|
|
# i686-pc-linux-gnu.
|
||
|
|
#
|
||
|
|
# gdb gets 'abort' and 'beta' right and then goes into the
|
||
|
|
# weeds.
|
||
|
|
kfail "gdb/1250" "backtrace from abort"
|
||
|
|
}
|
||
|
|
}
|