| # Copyright 2013-2016 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| load_lib dwarf.exp |
| |
| # This test can only be run on targets which support DWARF-2 and use gas. |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| # No remote host testing either. |
| if {[is_remote host]} { |
| return 0 |
| } |
| |
| |
| # Lots of source files since we test a few cases and make new files |
| # for each. |
| # The tests are: |
| # ok - the main file refers to a dwz and the buildids match |
| # mismatch - the buildids do not match |
| # fallback - the buildids do not match but a match is found via buildid |
| standard_testfile main.c \ |
| dwzbuildid-ok-base.S dwzbuildid-ok-sep.S \ |
| dwzbuildid-mismatch-base.S dwzbuildid-mismatch-sep.S \ |
| dwzbuildid-fallback-base.S dwzbuildid-fallback-sep.S \ |
| dwzbuildid-fallback-ok.S |
| |
| # Write some assembly that just has a .gnu_debugaltlink section. |
| proc write_just_debugaltlink {filename dwzname buildid} { |
| set asm_file [standard_output_file $filename] |
| |
| Dwarf::assemble $asm_file { |
| upvar dwzname dwzname |
| upvar buildid buildid |
| |
| gnu_debugaltlink $dwzname $buildid |
| |
| # Only the DWARF reader checks .gnu_debugaltlink, so make sure |
| # there is a bit of DWARF in here. |
| cu {} { |
| compile_unit {{language @DW_LANG_C}} { |
| } |
| } |
| } |
| } |
| |
| # Write some DWARF that also sets the buildid. |
| proc write_dwarf_file {filename buildid {value 99}} { |
| set asm_file [standard_output_file $filename] |
| |
| Dwarf::assemble $asm_file { |
| declare_labels int_label int_label2 |
| |
| upvar buildid buildid |
| upvar value value |
| |
| build_id $buildid |
| |
| cu {} { |
| compile_unit {{language @DW_LANG_C}} { |
| int_label2: base_type { |
| {name int} |
| {byte_size 4 sdata} |
| {encoding @DW_ATE_signed} |
| } |
| |
| constant { |
| {name the_int} |
| {type :$int_label2} |
| {const_value $value data1} |
| } |
| } |
| } |
| } |
| } |
| |
| if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile}1.o \ |
| object {nodebug}] != "" } { |
| return -1 |
| } |
| |
| # The values don't really matter, just whether they are equal. |
| set ok_prefix 01 |
| set ok_suffix 0203040506 |
| set ok_suffix2 02030405ff |
| set ok_buildid ${ok_prefix}${ok_suffix} |
| set ok_buildid2 ${ok_prefix}${ok_suffix2} |
| set bad_buildid ffffffffffff |
| |
| set debugdir [standard_output_file {}] |
| set basedir $debugdir/.build-id |
| file mkdir $basedir $basedir/$ok_prefix |
| |
| # Test where the separate debuginfo's buildid matches. |
| write_just_debugaltlink $srcfile2 ${binfile}3.o $ok_buildid |
| write_dwarf_file $srcfile3 $ok_buildid |
| |
| # Test where the separate debuginfo's buildid does not match. |
| write_just_debugaltlink $srcfile4 ${binfile}5.o $ok_buildid |
| write_dwarf_file $srcfile5 $bad_buildid |
| |
| # Test where the separate debuginfo's buildid does not match, but then |
| # we find a match in the .build-id directory. |
| write_just_debugaltlink $srcfile6 ${binfile}7.o $ok_buildid2 |
| # Use 77 as the value so that if we load the bad debuginfo, we will |
| # see the wrong result. |
| write_dwarf_file $srcfile7 $bad_buildid 77 |
| write_dwarf_file $srcfile8 $ok_buildid2 |
| |
| # Compile everything. |
| for {set i 2} {$i <= 8} {incr i} { |
| if {[gdb_compile [standard_output_file [set srcfile$i]] \ |
| ${binfile}$i.o object nodebug] != ""} { |
| return -1 |
| } |
| } |
| |
| # Copy a file into the .build-id place for the "fallback" test. |
| file copy -force -- ${binfile}8.o $basedir/$ok_prefix/$ok_suffix2.debug |
| |
| # Link the executables. |
| if {[gdb_compile [list ${binfile}1.o ${binfile}2.o] ${binfile}-ok \ |
| executable {}] != ""} { |
| return -1 |
| } |
| |
| if {[gdb_compile [list ${binfile}1.o ${binfile}4.o] ${binfile}-mismatch \ |
| executable {}] != ""} { |
| return -1 |
| } |
| |
| if {[gdb_compile [list ${binfile}1.o ${binfile}6.o] ${binfile}-fallback \ |
| executable {}] != ""} { |
| return -1 |
| } |
| |
| |
| foreach testname {ok mismatch fallback} { |
| with_test_prefix $testname { |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| |
| gdb_test_no_output "set debug-file-directory $debugdir" \ |
| "set debug-file-directory" |
| |
| gdb_load ${binfile}-${testname} |
| |
| if {[runto_main]} { |
| if {$testname == "mismatch"} { |
| gdb_test "print the_int" \ |
| "(No symbol table is loaded|No symbol \"the_int\" in current context).*" |
| } else { |
| gdb_test "print the_int" " = 99" |
| } |
| } |
| } |
| } |