forked from Imagelibrary/binutils-gdb
4001d90dde
When running test-case gdb.dwarf2/enqueued-cu-base-addr.exp with target board
cc-with-dwz, I get:
...
gdb compile failed, dwz: enqueued-cu-base-addr: \
Couldn't find DIE at [100] referenced by DW_AT_type from DIE at [d8]
...
At 0xd8 we have DIE:
...
<1><d8>: Abbrev Number: 3 (DW_TAG_variable)
<d9> DW_AT_name : foo
<dd> DW_AT_type : <0x100>
<e1> DW_AT_const_value : 1
...
referring to:
...
<1><100>: Abbrev Number: 3 (DW_TAG_base_type)
<101> DW_AT_byte_size : 4
<102> DW_AT_encoding : 5 (signed)
<103> DW_AT_name : int
...
The reference is inter-CU, but the used abbrev uses DW_FORM_ref4:
...
3 DW_TAG_variable [no children]
DW_AT_name DW_FORM_string
DW_AT_type DW_FORM_ref4
DW_AT_const_value DW_FORM_sdata
DW_AT value: 0 DW_FORM value: 0
...
which is for intra-CU references.
Fix this by using a '%' instead of a ':' label prefix in the dwarf assembly.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2021-02-08 Tom de Vries <tdevries@suse.de>
* gdb.dwarf2/enqueued-cu-base-addr.exp: Fix inter-CU reference.
113 lines
2.8 KiB
Plaintext
113 lines
2.8 KiB
Plaintext
# Copyright 2020-2021 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Check whether .debug_ranges is correctly read in during symtab expansion.
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load_lib dwarf.exp
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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return 0
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};
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standard_testfile main.c .S
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set executable ${testfile}
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set asm_file [standard_output_file ${srcfile2}]
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# We need to know the size of integer types in order to write some of the
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# debugging info we'd like to generate.
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if [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] {
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return -1
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}
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# Create the DWARF.
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Dwarf::assemble $asm_file {
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global srcdir subdir srcfile
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declare_labels int_label
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declare_labels ranges_label
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set main_func \
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[function_range main [list ${srcdir}/${subdir}/$srcfile]]
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cu {} {
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compile_unit {
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{language @DW_LANG_C_plus_plus}
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{name "cu1"}
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} {
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DW_TAG_variable {
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{name foo}
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{type %$int_label}
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{const_value 1 DW_FORM_sdata}
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}
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}
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}
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cu {} {
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compile_unit {
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{language @DW_LANG_C_plus_plus}
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{name "cu2"}
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{ranges ${ranges_label} sec_offset}
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{low_pc {[lindex $main_func 0]}}
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} {
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int_label: base_type {
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{byte_size 4 udata}
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{encoding @DW_ATE_signed}
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{name int}
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}
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}
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}
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ranges {is_64 [is_64_target]} {
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ranges_label: sequence {
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range 0 [lindex $main_func 1]
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}
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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clean_restart ${binfile}
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# Expand cu1. This will enqueue cu2.
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gdb_test "ptype foo" "type = int"
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# Now check that cu2 has an address range starting at main.
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set cu2_blockvector_re \
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[multi_line \
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"Symtab for file cu2 at $hex" \
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"Read from object file \[^\r\n\]*" \
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"Language: c\\+\\+" \
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"" \
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"Blockvector:" \
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"" \
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"block #000, \[^\r\n\]* in ($hex)..$hex" \
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".*"]
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gdb_test_multiple "maint print symbols -objfile $binfile" "CU addr found" {
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-re -wrap $cu2_blockvector_re {
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set addr $expect_out(1,string)
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if { $addr eq "0x0" } {
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fail "$gdb_test_name (Found 0x0)"
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} else {
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gdb_test "info symbol $addr" "main in section .*" \
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$gdb_test_name
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}
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}
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}
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