1# Copyright 2023-2024 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/>.
15
16# Check that prologue analysis in foo is correct in the presence of a
17# prologue_end marker in immediately following function bar.
18
19load_lib dwarf.exp
20
21# This test can only be run on targets which support DWARF-2 and use gas.
22require dwarf2_support
23
24standard_testfile .c .S
25
26set asm_file [standard_output_file $srcfile2]
27Dwarf::assemble $asm_file {
28    global srcdir subdir srcfile srcfile2
29    declare_labels lines_label
30
31    cu {} {
32	compile_unit {
33	    {language @DW_LANG_C}
34	    {name dw2-prologue-end.c}
35	    {stmt_list ${lines_label} DW_FORM_sec_offset}
36	} {
37	    subprogram {
38		{external 1 flag}
39		{name foo}
40		{low_pc foo_label addr}
41		{high_pc foo_end addr}
42	    }
43	    subprogram {
44		{external 1 flag}
45		{name bar}
46		{low_pc bar_label addr}
47		{high_pc bar_end addr}
48	    }
49	}
50    }
51
52    lines {version 5} lines_label {
53	set diridx [include_dir "${srcdir}/${subdir}"]
54	file_name "$srcfile" $diridx
55
56	program {
57	    DW_LNS_set_file $diridx
58
59	    DW_LNE_set_address foo_label
60	    line [gdb_get_line_number "Foo body"]
61	    DW_LNS_copy
62
63	    DW_LNE_set_address bar_label
64	    DW_LNS_set_prologue_end
65	    line [gdb_get_line_number "Bar body"]
66	    DW_LNS_copy
67
68	    DW_LNE_set_address bar_end
69	    DW_LNE_end_sequence
70	}
71    }
72}
73
74if { [prepare_for_testing "failed to prepare" ${testfile} \
75	  [list $srcfile $asm_file] {nodebug}] } {
76    return -1
77}
78
79# Don't runto main here, otherwise the following doesn't
80# function as regression test for PR30369.
81
82# Get the "break foo" address.
83
84set break_addr ""
85gdb_test_multiple "break foo" "" {
86    -re -wrap "at ($hex):\[^\r\n\]*" {
87	set break_addr $expect_out(1,string)
88	pass $gdb_test_name
89    }
90}
91
92if { $break_addr == "" } {
93    return
94}
95
96# Get the "bar_label" address.
97
98set bar_label_addr ""
99gdb_test_multiple "print /x &bar_label" "" {
100    -re -wrap "= ($hex)" {
101	set bar_label_addr $expect_out(1,string)
102	pass $gdb_test_name
103    }
104}
105
106if { $bar_label_addr == "" } {
107    return
108}
109
110# Check that bar immediately follows foo.  Otherwise the following doesn't
111# function as regression test for PR30369.
112
113gdb_test "print &foo_end == &bar_label" " = 1"
114
115# Check that the breakpoint is set at the expected address.  Regression test
116# for PR30369.
117
118gdb_assert { $break_addr < $bar_label_addr }
119