[12/13,gdb/testsuite] Add gdb.dwarf2/backward-spec-inter-cu.exp
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Commit Message
Add test-case gdb.dwarf2/backward-spec-inter-cu.exp, which excercises the code
added in the previous patch.
Tested on x86_64-linux.
---
.../gdb.dwarf2/backward-spec-inter-cu.exp | 111 ++++++++++++++++++
1 file changed, 111 insertions(+)
create mode 100644 gdb/testsuite/gdb.dwarf2/backward-spec-inter-cu.exp
new file mode 100644
@@ -0,0 +1,111 @@
+# Copyright 2023 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/>.
+
+# Check that the DWARF reader works with a a DW_AT_specification that
+# refers to a later DIE. Inter-cu variant of forward-spec.exp.
+
+load_lib dwarf.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+require dwarf2_support
+
+standard_testfile main.c -debug.S
+
+# Set up the DWARF for the test.
+set asm_file [standard_output_file $srcfile2]
+Dwarf::assemble $asm_file {
+ global srcfile
+
+ declare_labels spec
+
+ cu {} {
+ DW_TAG_compile_unit {
+ {DW_AT_language @DW_LANG_C_plus_plus}
+ } {
+ declare_labels myint
+
+ myint: DW_TAG_base_type {
+ {DW_AT_byte_size 4 DW_FORM_sdata}
+ {DW_AT_encoding @DW_ATE_signed}
+ {DW_AT_name myint}
+ }
+
+ DW_TAG_namespace {
+ {DW_AT_name ns}
+ } {
+ spec: DW_TAG_variable {
+ {DW_AT_name v}
+ {DW_AT_type :$myint}
+ {DW_AT_declaration 1 DW_FORM_flag_present}
+ }
+ }
+ }
+ }
+
+ cu {} {
+ DW_TAG_compile_unit {
+ {DW_AT_language @DW_LANG_C_plus_plus}
+ } {
+ # The new indexer has special code to compute the full
+ # name of an object that uses a specification that appears
+ # later in the DWARF.
+ DW_TAG_variable {
+ {DW_AT_specification %$spec}
+ {DW_AT_location {
+ DW_OP_const1u 23
+ DW_OP_stack_value
+ } SPECIAL_expr}
+ }
+ }
+ }
+}
+
+if {[build_executable "failed to prepare" ${testfile} \
+ [list $srcfile $asm_file] {nodebug}]} {
+ return -1
+}
+
+clean_restart
+gdb_test_no_output "maint set worker-threads 0"
+gdb_load $binfile
+
+set in_v 0
+gdb_test_multiple "maint print objfiles" "v has a parent" {
+ -re "^ *\\\[\[0-9\]\\\] *\\(\\(cooked_index_entry\[^\r\n\]*" {
+ set in_v 0
+ exp_continue
+ }
+ -re "^ *name: *v\[\r\n\]*" {
+ set in_v 1
+ exp_continue
+ }
+ -re "^ *parent: *\\(\\(cooked_index_entry \\*\\) (0|$hex)\\)" {
+ if {$in_v} {
+ if {$expect_out(1,string) == "0"} {
+ fail $gdb_test_name
+ } else {
+ pass $gdb_test_name
+ }
+ set in_v 0
+ }
+ exp_continue
+ }
+ -re "^\[^\r\n\]*\[\r\n\]+" {
+ exp_continue
+ }
+ -re "$gdb_prompt " {
+ # Done.
+ }
+}