gdb1558.exp

这个是LINUX下的GDB调度工具的源码

# Copyright 2004 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.  

# Please email any bugs, comments, and/or additions to this file to:
# [e-mail]

# This file is part of the gdb testsuite.

# Tests for PR:1558.  Hits breakpoint at main after function called
# from main.

if $tracelevel {
    strace $tracelevel
}

set prms_id 0
set bug_id 0

if ![istarget "sh-*-*"] then {
    verbose "Skipping SH breakpoint test."
    return
}

set testfile "gdb1558"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
# Note we have to compile WITH optimization and WITHOUT debugging information to expose the bug.
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {"additional_flags=-O2"}] != "" } {
    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}

gdb_test "b main" "Breakpoint 1.*" "set breakpoint at main"
gdb_test "b sub1" "Breakpoint 2.*" "set breakpoint at sub1"
gdb_test "b sub2" "Breakpoint 3.*" "set breakpoint at sub2"

# We can't use "runto_main" because that is exactly the problem
# we are trying to detect, stopping somewhere before main.

gdb_run_cmd

gdb_expect 30 {
    -re "Breakpoint 1.*main .*$gdb_prompt $" {
	pass "Hits breakpoint at main after function called from main"
    }
    -re "Breakpoint 2.*sub1 .*$gdb_prompt $" {
	kfail "gdb/1558" "Hits breakpoint at main after function called from main"
    }
    -re "$gdb_prompt $" { 
	fail "Hits breakpoint at main after function called from main"
    }
    timeout { 
	fail "Hits breakpoint at main after function called from main (timeout)"
    }
}