aboutsummaryrefslogtreecommitdiff
path: root/gdb/testsuite/lib/prompt.exp
blob: 56cafa4dd938db3adea080d57039f4f45bf9f214 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
# Copyright (C) 2011-2023 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 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 <http://www.gnu.org/licenses/>.

# Specialized subroutines for launching gdb and testing the very first prompt.


#
# start gdb -- start gdb running, prompt procedure
# this procedure differs from the default in that you must pass 'set height 0',
# and 'set width 0', yourself in GDBFLAGS, and it has a gdb_prompt_fail variable,
#
# uses pass if it sees $gdb_prompt, and fail if it sees $gdb_prompt_fail.
#
proc default_prompt_gdb_start { } {
    global use_gdb_stub
    global GDB
    global INTERNAL_GDBFLAGS GDBFLAGS
    global gdb_prompt
    global gdb_prompt_fail
    global timeout
    global gdb_spawn_id

    # Set the default value, it may be overriden later by specific testfile.
    #
    # Use `set_board_info use_gdb_stub' for the board file to flag the inferior
    # is already started after connecting and run/attach are not supported.
    # This is used for the "remote" protocol.  After GDB starts you should
    # check global $use_gdb_stub instead of the board as the testfile may force
    # a specific different target protocol itself.
    set use_gdb_stub [target_info exists use_gdb_stub]

    verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
    gdb_write_cmd_file "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS"

    if [info exists gdb_spawn_id] {
	return 0
    }

    if ![is_remote host] {
	if {[which $GDB] == 0} {
	    perror "$GDB does not exist."
	    exit 1
	}
    }
    set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
    if { $res < 0 || $res == "" } {
	perror "Spawning $GDB failed."
	return 1
    }
    gdb_expect 360 {
	-re ".*$gdb_prompt_fail.*$gdb_prompt_fail.*" {
	    fail "double prompted fail prompt"
	}
	-re ".*$gdb_prompt.*$gdb_prompt.*" {
	    fail "double prompted"
	}
	-re "\[\r\n\]$gdb_prompt_fail $" {
	    fail "GDB initializing first prompt"
	}
	-re "\[\r\n\]$gdb_prompt $" {
	    pass "GDB initializing first prompt"
	}
	-re "$gdb_prompt $"	{
	    perror "GDB never initialized."
	    return -1
	}
	-re "$gdb_prompt_fail $"	{
	    perror "GDB never initialized."
	    return -1
	}
	timeout	{
	    perror "(timeout) GDB never initialized after 10 seconds."
	    remote_close host
	    return -1
	}
    }
    set gdb_spawn_id $res
    return 0
}

#
# Overridable function. You can override this function in your
# baseboard file.
#
proc prompt_gdb_start { } {
    default_prompt_gdb_start
}