1 # Copyright 2020-2023 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/> .
16 # This test covers some basic functionality for debugging mixed
17 # Fortran, C, and C++ applications. Features tested include examining
18 # the backtrace, and printing frame arguments in frames of different
21 # One important aspect of this test is that we set the language in
22 # turn to auto, fortran, c, and c++, and carry out the full test in
23 # each case to ensure that trying to print objects or types from one
24 # language, while GDB's language is set to another, doesn't crash GDB.
26 if {[skip_fortran_tests]} { return -1 }
28 standard_testfile mixed-lang-stack.c mixed-lang-stack.cpp mixed-lang-stack.f90
30 if {[prepare_for_testing_full "failed to prepare" \
31 [list ${binfile} {debug f90 additional_flags=-lstdc++} \
33 $srcfile2 {debug c++} \
34 $srcfile3 {debug f90}]]} {
38 set have_index [exec_has_index_section $binfile]
40 # Runs the test program and examins the stack. LANG is a string, the
41 # value to pass to GDB's 'set language ...' command.
42 proc run_tests { lang } {
43 with_test_prefix "lang=${lang}" {
44 global binfile hex have_index
46 clean_restart ${binfile}
52 gdb_breakpoint "breakpt"
53 gdb_continue_to_breakpoint "breakpt"
55 if { $lang == "c" || $lang == "c++" } {
56 gdb_test "set language c" \
57 "Warning: the current language does not match this frame."
59 gdb_test_no_output "set language $lang"
62 # Check the backtrace.
63 set e_arg "\['\"\]abcdef\['\"\]"
64 set 1b_args "\[^\r\n\]+$e_arg\[^\r\n\]+"
65 set 1g_args "obj=\[^\r\n\]+"
68 "#0\\s+breakpt \\(\\) at \[^\r\n\]+" \
69 "#1\\s+$hex in mixed_func_1h \\(\\) at \[^\r\n\]+" \
70 "#2\\s+$hex in mixed_func_1g \\($1g_args\\) at \[^\r\n\]+" \
71 "#3\\s+$hex in mixed_func_1f \\(\\) at \[^\r\n\]+" \
72 "#4\\s+$hex in mixed_func_1e \\(\\) at \[^\r\n\]+" \
73 "#5\\s+$hex in mixed_func_1d \\(\[^\r\n\]+\\) at \[^\r\n\]+" \
74 "#6\\s+$hex in mixed_func_1c \\(\[^\r\n\]+\\) at \[^\r\n\]+" \
75 "#7\\s+$hex in mixed_func_1b \\($1b_args\\) at \[^\r\n\]+" \
76 "#8\\s+$hex in mixed_func_1a \\(\\) at \[^\r\n\]+" \
77 "#9\\s+$hex in mixed_stack_main \\(\\) at \[^\r\n\]+" ]
78 set main_args "argc=1, argv=${hex}( \[^\r\n\]+)?"
82 "#10\\s+$hex in main \\($main_args\\) at \[^\r\n\]+"]
83 gdb_test_multiple "bt -frame-arguments all" "" {
87 -re -wrap $bt_stack_kfail {
89 setup_kfail "gdb/24549" *-*-*
95 # Check the language for frame #0.
96 gdb_test "info frame" "source language fortran\..*" \
97 "info frame in frame #0"
99 # Move up to the C++ frames and check the frame state, print a
101 gdb_test "frame 2" "#2\\s+$hex in mixed_func_1g .*" \
103 gdb_test "info frame" "source language c\\+\\+\..*" \
104 "info frame in frame #2"
105 if { $lang == "fortran" } {
106 set obj_pattern " = \\( base_one = \\( num1 = 1, num2 = 2, num3 = 3 \\), base_two = \\( string = $hex 'Something in C\\+\\+\\\\000', val = 3.5 \\), xxx = 9, yyy = 10.5 \\)"
108 set obj_pattern " = \\{<base_one> = \\{num1 = 1, num2 = 2, num3 = 3\\}, <base_two> = \\{string = $hex \"Something in C\\+\\+\", val = 3.5\\}, xxx = 9, yyy = 10.5\\}"
110 gdb_test "print obj" "${obj_pattern}"
112 # Move up the stack a way, and check frame and the frame
114 gdb_test "frame 5" "#5\\s+$hex in mixed_func_1d .*" \
116 gdb_test "info frame" "source language fortran\..*" \
117 "info frame in frame #5"
119 gdb_test "up" "#6\\s+$hex in mixed_func_1c .*" \
121 gdb_test "info frame" "source language c\..*" \
122 "info frame in frame #6"
124 if { $lang == "fortran" } {
125 set d_pattern "\\(4,5\\)"
126 set f_pattern "$hex 'abcdef\\\\000'"
128 set d_pattern "4 \\+ 5i"
129 set f_pattern "$hex \"abcdef\""
132 # When value-printing pointers in GDB, GDB will try and look for any
133 # associated symbol and print it after the pointer as "<SYMBOL>". For
134 # this test Intel and LLVM compilers move g to the .bss section, thus
135 # creating a symbol, while the GNU compiler stack keeps g purely on the
137 set g_pattern "$hex\( <\[^\r\n\]+>\)?"
139 set args_pattern [multi_line \
147 gdb_test "info args" $args_pattern \
148 "info args in frame #6"
149 if { $lang == "fortran" } {
150 set g_val_pattern " = \\( a = 1\\.5, b = 2\\.5 \\)"
152 set g_val_pattern " = \\{a = 1\\.5, b = 2\\.5\\}"
154 gdb_test "print *g" "${g_val_pattern}" \
155 "print object pointed to by g"
157 gdb_test "up" "#7\\s+$hex in mixed_func_1b .*" \
159 gdb_test "info frame" "source language fortran\..*" \
160 "info frame in frame #7"
162 if { $lang == "c" || $lang == "c++" } {
163 set d_pattern "4 \\+ 5i"
164 set e_pattern "\"abcdef\""
165 set g_val_pattern "\{a = 1.5, b = 2.5\}"
167 set d_pattern "\\(4,5\\)"
168 set e_pattern "'abcdef'"
169 set g_val_pattern "\\( a = 1.5, b = 2.5 \\)"
172 set args_pattern [multi_line \
178 "g = ${g_val_pattern}" \
181 gdb_test "info args" $args_pattern \
182 "info args in frame #7"