aboutsummaryrefslogtreecommitdiff
path: root/gdb/testsuite/gdb.fortran/nested-funcs-2.exp
blob: 4dc49bc726880e1a37cbc211e786d4713d696de6 (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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
# Copyright 2019 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/> .

# Further testing of placing breakpoints in nested subroutines.

if {[skip_fortran_tests]} { return -1 }
load_lib "fortran.exp"

standard_testfile ".f90"

if {[prepare_for_testing ${testfile}.exp ${testfile} \
	 ${srcfile} {debug f90}]} {
    return -1
}

set int4 [fortran_int4]

# When WITH_SRC_PREFIX_P is true then some symbol references will be
# prefixed with the filename.  When WITH_NEST_PREFIX_P is true then
# nested subroutine symbols will be prefixed with their parent
# subroutine scope.
proc do_bp_tests {with_src_prefix_p with_nest_prefix_p} {
    global testfile srcfile
    global int4
    global hex

    clean_restart ${testfile}

    if { $with_src_prefix_p } {
	set src_prefix "${srcfile}:"
    } else {
	set src_prefix ""
    }

    if { $with_nest_prefix_p } {
	set nest_prefix "contains_keyword::"
    } else {
	set nest_prefix ""
    }

    # Test setting up breakpoints and otherwise examining nested
    # functions before the program starts.
    with_test_prefix "before start" {
	foreach entry \
	    [list \
		 [list "increment" "${int4} \\\(${int4}\\\)"] \
		 [list "increment_program_global" "${int4} \\\(void\\\)"] \
		 [list "hidden_variable" "void \\\(void\\\)"]] {
		     set function [lindex $entry 0]
		     set type [lindex $entry 1]

		     # Currently referencing symbols using 'info',
		     # 'whatis' and 'ptype' before the program is
		     # started doesn't work.  This is the same
		     # behaviour we see in C++ so I don't think this
		     # is a failure, just a limitation in current GDB.
		     if { ${with_nest_prefix_p} } {
			 gdb_test "info symbol ${nest_prefix}${function}" \
			     "${function} in section .*"
			 gdb_test "whatis ${nest_prefix}${function}" \
			     "type = ${type}"
			 gdb_test "ptype ${nest_prefix}${function}" \
			     "type = ${type}"
			 gdb_test "print ${nest_prefix}${function}" \
			     "{${type}} $hex <contains_keyword::${function}>"
		     }

		     gdb_breakpoint "${src_prefix}${nest_prefix}${function}"
		 }
    }

    # Break on a contained function and run to it.
    if {![runto ${src_prefix}[gdb_get_line_number "pre_init"]]} then {
	perror "couldn't run to breakpoint pre_init"
	continue
    }

    # Call a contained function.
    if { ${with_nest_prefix_p} } {
	gdb_test "call ${nest_prefix}subroutine_to_call()" " called"
    }

    # Break on another contained function and run to it.
    gdb_breakpoint "${src_prefix}${nest_prefix}increment"
    gdb_continue_to_breakpoint "increment" ".*increment = i \\\+ 1"
    gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_increment"]
    gdb_continue_to_breakpoint "post_increment"

    # Check arguments and locals report the correct values. 12 is
    # passed in and 13 is the result after adding 1.
    gdb_test "info args" "i = 12"
    gdb_test "info locals" " = 13"

    # Check we can see variables from an outer program scope.
    gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_increment_global"]
    gdb_continue_to_breakpoint "post_increment_global" \
	".*print \\\*, program_i ! post_increment_global"
    gdb_test "info args" "No arguments." \
	"no argument subroutine has no arguments"
    gdb_test "p program_i" " = 7" "printing outer scoped variable"

    # Stepping into a contained subroutine.
    gdb_breakpoint ${src_prefix}[gdb_get_line_number "pre_step"]
    gdb_continue_to_breakpoint "pre_step" ".*call step\\\(\\\) ! pre_step"
    gdb_test "step" \
	".*print '\\\(A\\\)', \\\"step\\\" ! post_step" \
	"step into the correct place"

    # Local hides program global.
    gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_hidden"]
    gdb_continue_to_breakpoint "post_hidden" \
	".*print \\\*, program_i ! post_hidden"
    gdb_test "p program_i" " = 30" "printing hidden global"

    # Check info symbol, whatis and ptype can find information on
    # these nested functions.
    foreach entry \
	[list \
	     [list "increment" "${int4} \\\(${int4}\\\)"] \
	     [list "increment_program_global" "${int4} \\\(void\\\)"]] {
		 set function [lindex $entry 0]
		 set type [lindex $entry 1]
		 with_test_prefix $function {
		     gdb_test "info symbol ${nest_prefix}$function" \
			 "$function in section .*"
		     gdb_test "whatis ${nest_prefix}$function" \
			 "type = ${type}"
		     gdb_test "ptype ${nest_prefix}$function" \
			 "type = ${type}"
		 }
	     }
}

foreach_with_prefix src_prefix { 0 1 } {
    foreach_with_prefix nest_prefix { 0 1 } {
	do_bp_tests ${src_prefix} ${nest_prefix}
    }
}