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ecd75fc8 | 1 | # Copyright 2013-2014 Free Software Foundation, Inc. |
dc294be5 TT |
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 and use gas. | |
19 | if {![dwarf2_support]} { | |
20 | return 0 | |
21 | } | |
22 | ||
23 | # No remote host testing either. | |
24 | if {[is_remote host]} { | |
25 | return 0 | |
26 | } | |
27 | ||
28 | ||
29 | # Lots of source files since we test a few cases and make new files | |
30 | # for each. | |
31 | # The tests are: | |
32 | # ok - the main file refers to a dwz and the buildids match | |
33 | # mismatch - the buildids do not match | |
34 | # fallback - the buildids do not match but a match is found via buildid | |
35 | standard_testfile main.c \ | |
36 | dwzbuildid-ok-base.S dwzbuildid-ok-sep.S \ | |
37 | dwzbuildid-mismatch-base.S dwzbuildid-mismatch-sep.S \ | |
38 | dwzbuildid-fallback-base.S dwzbuildid-fallback-sep.S \ | |
39 | dwzbuildid-fallback-ok.S | |
40 | ||
41 | # Write some assembly that just has a .gnu_debugaltlink section. | |
42 | proc write_just_debugaltlink {filename dwzname buildid} { | |
43 | set asm_file [standard_output_file $filename] | |
44 | ||
45 | Dwarf::assemble $asm_file { | |
46 | upvar dwzname dwzname | |
47 | upvar buildid buildid | |
48 | ||
49 | gnu_debugaltlink $dwzname $buildid | |
50 | ||
51 | # Only the DWARF reader checks .gnu_debugaltlink, so make sure | |
52 | # there is a bit of DWARF in here. | |
53 | cu {} { | |
54 | compile_unit {{language @DW_LANG_C}} { | |
55 | } | |
56 | } | |
57 | } | |
58 | } | |
59 | ||
60 | # Write some DWARF that also sets the buildid. | |
61 | proc write_dwarf_file {filename buildid {value 99}} { | |
62 | set asm_file [standard_output_file $filename] | |
63 | ||
64 | Dwarf::assemble $asm_file { | |
4c2d33e7 | 65 | declare_labels int_label int_label2 |
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66 | |
67 | upvar buildid buildid | |
68 | upvar value value | |
69 | ||
70 | build_id $buildid | |
71 | ||
72 | cu {} { | |
73 | compile_unit {{language @DW_LANG_C}} { | |
74 | int_label2: base_type { | |
75 | {name int} | |
76 | {byte_size 4 sdata} | |
77 | {encoding @DW_ATE_signed} | |
78 | } | |
79 | ||
80 | constant { | |
81 | {name the_int} | |
82 | {type :$int_label2} | |
83 | {const_value $value data1} | |
84 | } | |
85 | } | |
86 | } | |
87 | } | |
88 | } | |
89 | ||
90 | if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile}1.o \ | |
91 | object {nodebug}] != "" } { | |
92 | return -1 | |
93 | } | |
94 | ||
95 | # The values don't really matter, just whether they are equal. | |
96 | set ok_prefix 01 | |
97 | set ok_suffix 0203040506 | |
98 | set ok_suffix2 02030405ff | |
99 | set ok_buildid ${ok_prefix}${ok_suffix} | |
100 | set ok_buildid2 ${ok_prefix}${ok_suffix2} | |
101 | set bad_buildid ffffffffffff | |
102 | ||
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103 | set debugdir [standard_output_file {}] |
104 | set basedir $debugdir/.build-id | |
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105 | file mkdir $basedir $basedir/$ok_prefix |
106 | ||
107 | # Test where the separate debuginfo's buildid matches. | |
108 | write_just_debugaltlink $srcfile2 ${binfile}3.o $ok_buildid | |
109 | write_dwarf_file $srcfile3 $ok_buildid | |
110 | ||
111 | # Test where the separate debuginfo's buildid does not match. | |
112 | write_just_debugaltlink $srcfile4 ${binfile}5.o $ok_buildid | |
113 | write_dwarf_file $srcfile5 $bad_buildid | |
114 | ||
115 | # Test where the separate debuginfo's buildid does not match, but then | |
116 | # we find a match in the .build-id directory. | |
117 | write_just_debugaltlink $srcfile6 ${binfile}7.o $ok_buildid2 | |
118 | # Use 77 as the value so that if we load the bad debuginfo, we will | |
119 | # see the wrong result. | |
120 | write_dwarf_file $srcfile7 $bad_buildid 77 | |
121 | write_dwarf_file $srcfile8 $ok_buildid2 | |
122 | ||
123 | # Compile everything. | |
124 | for {set i 2} {$i <= 8} {incr i} { | |
125 | if {[gdb_compile [standard_output_file [set srcfile$i]] \ | |
126 | ${binfile}$i.o object nodebug] != ""} { | |
127 | return -1 | |
128 | } | |
129 | } | |
130 | ||
131 | # Copy a file into the .build-id place for the "fallback" test. | |
132 | file copy -force -- ${binfile}8.o $basedir/$ok_prefix/$ok_suffix2.debug | |
133 | ||
134 | # Link the executables. | |
135 | if {[gdb_compile [list ${binfile}1.o ${binfile}2.o] ${binfile}-ok \ | |
136 | executable {}] != ""} { | |
137 | return -1 | |
138 | } | |
139 | ||
140 | if {[gdb_compile [list ${binfile}1.o ${binfile}4.o] ${binfile}-mismatch \ | |
141 | executable {}] != ""} { | |
142 | return -1 | |
143 | } | |
144 | ||
145 | if {[gdb_compile [list ${binfile}1.o ${binfile}6.o] ${binfile}-fallback \ | |
146 | executable {}] != ""} { | |
147 | return -1 | |
148 | } | |
149 | ||
150 | ||
151 | foreach testname {ok mismatch fallback} { | |
152 | with_test_prefix $testname { | |
153 | gdb_exit | |
154 | gdb_start | |
155 | gdb_reinitialize_dir $srcdir/$subdir | |
156 | ||
a1b0fbee | 157 | gdb_test_no_output "set debug-file-directory $debugdir" \ |
3db258f5 | 158 | "set debug-file-directory" |
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159 | |
160 | gdb_load ${binfile}-${testname} | |
161 | ||
162 | if {[runto_main]} { | |
163 | if {$testname == "mismatch"} { | |
164 | gdb_test "print the_int" \ | |
5e45f04c | 165 | "(No symbol table is loaded|No symbol \"the_int\" in current context).*" |
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166 | } else { |
167 | gdb_test "print the_int" " = 99" | |
168 | } | |
169 | } | |
170 | } | |
171 | } |