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1 | # Copyright 2013 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 | load_lib dwarf.exp | |
17 | ||
18 | # This test can only be run on targets which support DWARF-2. | |
19 | if {![dwarf2_support]} { | |
20 | return 0 | |
21 | } | |
22 | ||
23 | standard_testfile main.c | |
24 | ||
25 | if { [prepare_for_testing "${testfile}.exp" "${testfile}" \ | |
26 | [list ${srcfile}]] } { | |
27 | return -1 | |
28 | } | |
29 | ||
30 | # Add a .gdb_index section to PROGRAM. | |
31 | # PROGRAM is assumed to be the output of standard_output_file. | |
32 | # Returns the path of the program or "" if there is a failure. | |
33 | # If there is a failure it will have already been logged. | |
34 | ||
35 | proc add_gdb_index { program } { | |
36 | set index_file ${program}.gdb-index | |
37 | verbose -log "index_file: ${index_file}" | |
38 | remote_file host delete ${index_file} | |
39 | gdb_test_no_output "save gdb-index [file dirname ${index_file}]" | |
40 | ||
41 | # No point in continuing if generating the index failed. | |
42 | # N.B.: There are times when gdb won't create an index, and it's not a | |
43 | # failure. However, in our case we need an index. So if you find one | |
44 | # not being generated, you'll either have to tweak the .c file or maybe | |
45 | # add a flag to force an index to be generated. | |
46 | if { [remote_file host exists ${index_file}] } { | |
47 | pass "gdb-index file created" | |
48 | } else { | |
49 | fail "gdb-index file created" | |
50 | return "" | |
51 | } | |
52 | ||
53 | set program_with_index ${program}.with-index | |
54 | if {[run_on_host "objcopy" [transform objcopy] "--remove-section .gdb_index --add-section .gdb_index=$index_file --set-section-flags .gdb_index=readonly ${program} ${program_with_index}"]} { | |
55 | return "" | |
56 | } | |
57 | return ${program_with_index} | |
58 | } | |
59 | ||
60 | # Build a copy of the program with .gdb_index. | |
61 | # But only if the toolchain didn't already create one: gdb doesn't support | |
62 | # building an index from a program already using one. | |
63 | ||
64 | set test "check if index present" | |
65 | gdb_test_multiple "mt print objfiles ${testfile}" $test { | |
66 | -re "gdb_index.*${gdb_prompt} $" { | |
67 | set binfile_with_index $binfile | |
68 | } | |
69 | -re "Psymtabs.*${gdb_prompt} $" { | |
70 | set binfile_with_index [add_gdb_index $binfile] | |
71 | if { ${binfile_with_index} == "" } { | |
72 | return -1 | |
73 | } | |
74 | } | |
75 | } | |
76 | ||
77 | # Ok, we have a copy of $binfile with .gdb_index. | |
78 | # Restart gdb and verify the index was used. | |
79 | ||
80 | clean_restart ${binfile_with_index} | |
81 | gdb_test "mt print objfiles ${testfile}" \ | |
82 | "gdb_index.*" \ | |
83 | ".gdb_index used" | |
84 | ||
85 | # Make gdb re-read symbols and see if .gdb_index still gets used. | |
86 | # symtab/15885 | |
87 | ||
88 | # There is gdb_touch_execfile, but it doesn't handle remote hosts. | |
89 | # Is touch portable enough? | |
90 | # First make sure enough time has passed, file mtime resolution is seconds. | |
91 | gdb_test_no_output "shell sleep 1" | |
92 | if {[run_on_host "touch binary" touch ${binfile_with_index}]} { | |
93 | return -1 | |
94 | } | |
95 | ||
96 | if ![runto_main] { | |
97 | return -1 | |
98 | } | |
99 | gdb_test "mt print objfiles ${testfile}" \ | |
100 | "gdb_index.*" \ | |
101 | ".gdb_index used after symbol reloading" |