1# Copyright 2020-2023 Free Software Foundation, Inc.
2
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.
7#
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.
12#
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/>.
15load_lib dwarf.exp
16
17# The function foo is encapsulated by two functions from CU
18# $srcfile (main and bar), but the debug info does not describe foo, so
19# foo should not be seen as part of CU $srcfile.
20# Run to foo, and check that the current language is the default auto/C.
21# If foo is considered part of CU $srcfile, the language will be auto/C++
22# instead.
23
24# This test can only be run on targets which support DWARF-2 and use gas.
25if {![dwarf2_support]} {
26    verbose "Skipping $gdb_test_file_name."
27    return 0
28}
29
30# The .c files use __attribute__.
31if ![is_c_compiler_gcc] {
32    verbose "Skipping $gdb_test_file_name."
33    return 0
34}
35
36standard_testfile .c -dw.S
37
38set asm_file [standard_output_file $srcfile2]
39Dwarf::assemble $asm_file {
40    global srcdir subdir srcfile srcfile2
41    declare_labels ranges_label
42
43    # Find start address and length for our functions.
44    set foo_func \
45	[function_range foo [list ${srcdir}/${subdir}/$srcfile]]
46    set quux_func \
47	[function_range quux [list ${srcdir}/${subdir}/$srcfile]]
48    set bar_func \
49	[function_range bar [list ${srcdir}/${subdir}/$srcfile]]
50
51    cu {} {
52	compile_unit {
53	    {language @DW_LANG_C_plus_plus}
54	    {name $srcfile}
55	    {ranges ${ranges_label} DW_FORM_sec_offset}
56	} {
57	    subprogram {
58		{external 1 flag}
59		{name quux}
60	    }
61	}
62    }
63
64    ranges {is_64 [is_64_target]} {
65	ranges_label: sequence {
66	    base [lindex $quux_func 0]
67	    range 0 [lindex $quux_func 1]
68	    base [lindex $bar_func 0]
69	    range 0 [lindex $bar_func 1]
70	}
71    }
72}
73
74if { [prepare_for_testing "failed to prepare" ${testfile} \
75	  [list $srcfile $asm_file] {nodebug}] } {
76    return -1
77}
78
79if ![runto foo] {
80    return -1
81}
82
83gdb_test "show language" \
84    "The current source language is \"auto; currently c\"\."
85