1 # Copyright 2013 Free Software Foundation, Inc.
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.
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.
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/>.
18 # This test can only be run on targets which support DWARF-2 and use gas.
19 if {![dwarf2_support]} {
23 # No remote host testing either.
24 if {[is_remote host]} {
29 # Lots of source files since we test a few cases and make new files
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
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]
45 Dwarf::assemble $asm_file {
49 gnu_debugaltlink $dwzname $buildid
51 # Only the DWARF reader checks .gnu_debugaltlink, so make sure
52 # there is a bit of DWARF in here.
54 compile_unit {{language @DW_LANG_C}} {
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]
64 Dwarf::assemble $asm_file {
65 declare_labels partial_label double_label int_label int_label2
73 compile_unit {{language @DW_LANG_C}} {
74 int_label2: base_type {
77 {encoding @DW_ATE_signed}
83 {const_value $value data1}
90 if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile}1.o \
91 object {nodebug}] != "" } {
95 # The values don't really matter, just whether they are equal.
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
103 set outdir [standard_output_file {}]
104 set basedir $outdir/.build-id
105 file mkdir $basedir $basedir/$ok_prefix
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
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
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 $ok_buildid2
123 # Compile everything.
124 for {set i 2} {$i <= 8} {incr i} {
125 if {[gdb_compile [standard_output_file [set srcfile$i]] \
126 ${binfile}$i.o object nodebug] != ""} {
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
134 # Link the executables.
135 if {[gdb_compile [list ${binfile}1.o ${binfile}2.o] ${binfile}-ok \
136 executable {}] != ""} {
140 if {[gdb_compile [list ${binfile}1.o ${binfile}4.o] ${binfile}-mismatch \
141 executable {}] != ""} {
145 if {[gdb_compile [list ${binfile}1.o ${binfile}6.o] ${binfile}-fallback \
146 executable {}] != ""} {
151 foreach testname {ok mismatch fallback} {
152 with_test_prefix $testname {
155 gdb_reinitialize_dir $srcdir/$subdir
157 gdb_test_no_output "set debug-file-directory $outdir"
159 gdb_load ${binfile}-${testname}
162 if {$testname == "mismatch"} {
163 gdb_test "print the_int" \
164 "No symbol table is loaded.*"
166 gdb_test "print the_int" " = 99"