]>
Commit | Line | Data |
---|---|---|
213516ef | 1 | # Copyright 2021-2023 Free Software Foundation, Inc. |
211aafd1 TV |
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 | load_lib dwarf.exp | |
17 | ||
18 | # Check psymtabs addrmaps generated from DW_AT_ranges of functions. | |
19 | ||
20 | # This test can only be run on targets which support DWARF-2 and use gas. | |
21 | if {![dwarf2_support]} { | |
22 | unsupported "dwarf2 support required for this test" | |
23 | return 0 | |
24 | } | |
25 | ||
26 | standard_testfile -main.c .c -dw.S | |
27 | ||
28 | # We need to know the size of integer and address types in order to | |
29 | # write some of the debugging info we'd like to generate. | |
30 | # | |
31 | # For that, we ask GDB by debugging our test program. Any program | |
32 | # would do, but since we already have it specifically for this | |
33 | # testcase, might as well use that. | |
34 | ||
35 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
36 | [list ${srcfile} ${srcfile2}]] } { | |
37 | return -1 | |
38 | } | |
39 | ||
40 | set asm_file [standard_output_file $srcfile3] | |
41 | Dwarf::assemble $asm_file { | |
42 | global srcdir subdir srcfile srcfile2 | |
43 | declare_labels integer_label func_ranges_label | |
44 | set int_size [get_sizeof "int" 4] | |
45 | ||
46 | # Find start address and length for our functions. | |
47 | set sources [list ${srcdir}/${subdir}/$srcfile ${srcdir}/${subdir}/$srcfile2] | |
48 | ||
49 | lassign [function_range foo $sources] \ | |
50 | foo_start foo_len | |
51 | set foo_end "$foo_start + $foo_len" | |
52 | ||
53 | lassign [function_range foo_low $sources] \ | |
54 | foo_low_start foo_low_len | |
55 | set foo_low_end "$foo_low_start + $foo_low_len" | |
56 | ||
57 | lassign [function_range bar $sources] \ | |
58 | bar_start bar_len | |
59 | set bar_end "$bar_start + $bar_len" | |
60 | ||
61 | lassign [function_range baz $sources] \ | |
62 | baz_start baz_len | |
63 | set baz_end "$baz_start + $baz_len" | |
64 | ||
65 | cu {} { | |
66 | compile_unit { | |
67 | {language @DW_LANG_C} | |
68 | {name dw-ranges-psym.c} | |
69 | {low_pc 0 addr} | |
70 | } { | |
71 | integer_label: DW_TAG_base_type { | |
72 | {DW_AT_byte_size $int_size DW_FORM_sdata} | |
73 | {DW_AT_encoding @DW_ATE_signed} | |
74 | {DW_AT_name integer} | |
75 | } | |
76 | subprogram { | |
77 | {external 1 flag} | |
78 | {name foo} | |
79 | {ranges ${func_ranges_label} DW_FORM_sec_offset} | |
80 | } | |
81 | subprogram { | |
82 | {external 1 flag} | |
83 | {name bar} | |
84 | {low_pc $bar_start addr} | |
85 | {high_pc $bar_len DW_FORM_data4} | |
86 | } | |
87 | subprogram { | |
88 | {external 1 flag} | |
89 | {name baz} | |
90 | {low_pc $baz_start addr} | |
91 | {high_pc $baz_len DW_FORM_data4} | |
92 | } | |
93 | } | |
94 | } | |
95 | ||
96 | # Generate ranges data. Create a hole at $foo_low_start + 1" .. $foo_low_end. | |
97 | ranges {is_64 [is_64_target]} { | |
98 | func_ranges_label: sequence { | |
99 | range $foo_start $foo_end | |
100 | range $foo_low_start "$foo_low_start + 1" | |
101 | #range "$foo_low_start + 1" $foo_low_end | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
106 | if { [build_executable "failed to prepare" ${testfile} \ | |
107 | [list $srcfile $srcfile2 $asm_file] {nodebug}] } { | |
108 | return -1 | |
109 | } | |
110 | ||
111 | clean_restart | |
112 | ||
113 | gdb_load_no_complaints $binfile | |
114 | ||
115 | if ![runto_main] { | |
116 | return -1 | |
117 | } | |
118 | ||
119 | # Generate backtrace from baz, that visits the hole in the addrmap. If | |
120 | # the hole is there in the symbol table, but not the partial symbol table, | |
121 | # we run into: | |
122 | # (gdb) bt | |
123 | # warning: (Internal error: pc 0x555555554619 in read in psymtab, \ | |
124 | # but not in symtab.) | |
125 | # ... | |
126 | # (gdb) | |
127 | ||
128 | gdb_test "break baz" \ | |
129 | "Breakpoint.*at.*" | |
130 | ||
131 | gdb_test "continue" | |
132 | ||
133 | set re "warning: \\(Internal error: pc $hex in read in psymtab, but not in symtab\\.\\)" | |
134 | gdb_test_multiple "bt" "" { | |
135 | -re -wrap "$re.*" { | |
136 | fail $gdb_test_name | |
137 | } | |
138 | -re -wrap "" { | |
139 | pass $gdb_test_name | |
140 | } | |
141 | } |