consecutive.exp

这个是LINUX下的GDB调度工具的源码

#   Copyright 2001
#   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 was written by Michael Snyder. ([e-mail])

if $tracelevel then {
    strace $tracelevel
}

#
# Test breakpoints at consecutive instruction addresses.
#

set prms_id 0
set bug_id 0

set testfile "consecutive"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}

if [get_compiler_info ${binfile}] {
    return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

if [target_info exists gdb_stub] {
    gdb_step_for_stub;
}

if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

set nl "\[\r\n\]+"

gdb_breakpoint foo
gdb_test "continue" "Breakpoint $decimal, foo .*" \
	"continue to breakpoint in foo"

set bp_addr 0
set stop_addr 0

send_gdb "x /2i \$pc\n"
gdb_expect {
    global hex
    global nl
    global bp_addr
    global gdb_prompt

    -re "$hex.*${nl}($hex).*$gdb_prompt $" {
	set bp_addr $expect_out(1,string)
	pass "get breakpoint address for foo"
    }
    -re ".*$gdb_prompt $" {
	fail "get breakpoint address for foo"
	return 0;
    }
    timeout {
	fail "get breakpoint address for foo (timeout)"
	return 0;
    }
}

gdb_test "break \*$bp_addr" "Breakpoint $decimal at $bp_addr: file .*" \
	"set bp, 2nd instr"

send_gdb "step\n"
gdb_expect {
    -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
	set stop_addr $expect_out(1,string)
	if [eval expr "$bp_addr == $stop_addr"] then {
	    pass "stopped at bp, 2nd instr"
	} else {
	    fail "stopped at bp, 2nd instr (wrong address)"
	}
    }
    -re ".*$gdb_prompt $" {
	fail "stopped at bp, 2nd instr"
    }
    timeout {
	fail "stopped at bp, 2nd instr (timeout)"

    }
}