diff options
Diffstat (limited to 'gdb/testsuite/gdb.dwarf2/dwzbuildid.tcl')
| -rw-r--r-- | gdb/testsuite/gdb.dwarf2/dwzbuildid.tcl | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.dwarf2/dwzbuildid.tcl b/gdb/testsuite/gdb.dwarf2/dwzbuildid.tcl new file mode 100644 index 0000000..a9077eb --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dwzbuildid.tcl @@ -0,0 +1,184 @@ +# Copyright 2013-2025 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. +require dwarf2_support + +# No remote host testing either. +require {!is_remote host} + + +# 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 $asm_file { + upvar dwzname dwzname + upvar buildid buildid + + if {$::scenario == "gnu"} { + gnu_debugaltlink $dwzname $buildid + } else { + debug_sup 0 $dwzname $buildid + } + + # Only the DWARF reader checks .gnu_debugaltlink, so make sure + # there is a bit of DWARF in here. + cu { label cu_start } { + compile_unit {{language @DW_LANG_C}} { + } + } + aranges {} cu_start { + arange {} 0 0 + } + } +} + +# 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 $asm_file { + declare_labels int_label int_label2 + + upvar buildid buildid + upvar value value + + if {$::scenario == "gnu"} { + build_id $buildid + } else { + debug_sup 1 "" $buildid + } + + cu { label cu_start } { + compile_unit {{language @DW_LANG_C}} { + int_label2: base_type { + {name int} + {byte_size 4 sdata} + {encoding @DW_ATE_signed} + } + + constant { + {name the_int} + {type :$int_label2} + {const_value $value data1} + } + } + } + + aranges {} cu_start { + arange {} 0 0 + } + } +} + +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 02030405060708091011121314151617181920 +set ok_suffix2 020304050607080910111213141516171819ff +set ok_buildid ${ok_prefix}${ok_suffix} +set ok_buildid2 ${ok_prefix}${ok_suffix2} +set bad_buildid [string repeat ff 20] + +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 + +proc do_test {} { + clean_restart + + gdb_test_no_output "set debug-file-directory $::debugdir" \ + "set debug-file-directory" + + gdb_load ${::binfile}-${::testname} + + if {![runto_main]} { + return + } + + if {$::testname == "mismatch"} { + gdb_test "print the_int" \ + "(No symbol table is loaded|No symbol \"the_int\" in current context).*" + } else { + gdb_test "print the_int" " = 99" + } +} + +set tests {ok mismatch} +if {$scenario == "gnu"} { + lappend tests fallback +} +foreach_with_prefix testname $tests { + if { $testname == "ok" } { + set objs [list ${binfile}1.o ${binfile}2.o] + } elseif { $testname == "mismatch" } { + set objs [list ${binfile}1.o ${binfile}4.o] + } elseif { $testname == "fallback" } { + set objs [list ${binfile}1.o ${binfile}6.o] + } + + if {[gdb_compile $objs ${binfile}-$testname executable {quiet}] != ""} { + unsupported "compilation failed" + continue + } + + do_test +} |