c7cd10637c
When loading the debug-names-duplicate-cu executable included in this
test-case, we run into:
...
(gdb) file debug-names-duplicate-cu^M
Reading symbols from debug-names-duplicate-cu...^M
src/gdb/dwarf2/read.c:2353: internal-error: read_addrmap_from_aranges: \
Assertion `insertpair.second' failed.^M
...
This assert was added in recent commit 75337cbc14 ("[gdb/symtab] Fix
.debug_aranges duplicate offset warning").
The assert triggers because the CU table in the .debug_names section contains
a duplicate:
...
Version 5
Augmentation string: 47 44 42 00 ("GDB")
CU table:
[ 0] 0x0
[ 1] 0x0
...
Fix this by rejecting the .debug_names index:
...
(gdb) file debug-names-duplicate-cu^M
Reading symbols from debug-names-duplicate-cu...^M
warning: Section .debug_names has duplicate entry in CU table, \
ignoring .debug_names.^M
...
Likewise for the case where the CU table is not sorted by increasing offset.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29436
78 lines
2.1 KiB
Text
78 lines
2.1 KiB
Text
# Copyright 2022 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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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 _start.c debug-names.S
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set func_info_vars \
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[get_func_info _start [list debug additional_flags=-nostartfiles]]
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# Create the DWARF.
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble {
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filename $asm_file
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add_dummy_cus 0
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} {
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global func_info_vars
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foreach var $func_info_vars {
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global $var
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}
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cu { label cu_label } {
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compile_unit {{language @DW_LANG_C}} {
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subprogram {
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{DW_AT_name _start}
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{DW_AT_low_pc $_start_start DW_FORM_addr}
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{DW_AT_high_pc $_start_end DW_FORM_addr}
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}
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base_type {
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{name int}
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{byte_size 4 sdata}
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{encoding @DW_ATE_signed}
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}
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}
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}
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debug_names {} {
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cu cu_label
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cu cu_label
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name _start subprogram cu_label 0xEDDB6232
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name int base_type cu_label 0xB888030
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}
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}
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if [prepare_for_testing "failed to prepare" $testfile "${asm_file} ${srcfile}" \
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[list additional_flags=-nostartfiles]] {
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return -1
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}
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# Check for warning.
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set re \
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[list \
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"warning:" \
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"Section .debug_names has duplicate entry in CU table," \
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"ignoring .debug_names."]
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set re [join $re]
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gdb_assert {[regexp $re $gdb_file_cmd_msg]} "warning"
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# Verify that .debug_names section is ignored.
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set index [have_index $binfile]
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gdb_assert { [string equal $index ""] } ".debug_names not used"
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