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binutils-gdb/gdb/testsuite/gdb.ctf/multi.exp
Tom de Vries 908a926ec4 [gdb/testsuite] Fix ctf test-cases on openSUSE Tumbleweed
When running test-case gdb.base/ctf-constvars.exp on openSUSE Tumbleweed (with
system gcc version 12, providing gcc -gctf support, enabling the ctf test-cases
in the gdb testsuite), I run into:
...
(gdb) print vox^M
'vox' has unknown type; cast it to its declared type^M
(gdb) FAIL: gdb.base/ctf-constvars.exp: print vox
...

There are two causes for this:
- the linker flags are missing --ctf-variables, so the information for variable
  vox is missing (reported in PR29468), and
- the executable contains some dwarf2 due to some linked-in glibc objects,
  so the ctf info is ignored (reported in PR29160).

By using:
- -Wl,--ctf-variable,
- -Wl,--strip-debug, and
we can make the test-case and some similar test-cases pass.

Tested on x86_64-linux.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29160
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29468
2022-10-12 17:02:15 +02:00

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# Copyright 2021-2022 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/>.
# This file is a subset of ptype.exp written by Rob Savoye. (rob@cygnus.com)
if [skip_ctf_tests] {
unsupported "no CTF debug format support, or CTF disabled in GDB"
return 0
}
standard_testfile ctf-a.c ctf-b.c ctf-c.c
# Using `-gctf` generates full-fledged CTF debug information.
set opts {}
lappend opts additional_flags=-gctf
lappend opts ldflags=-Wl,--export-dynamic
lappend opts ldflags=-Wl,--strip-debug
lappend opts nowarning
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $srcfile2 $srcfile3] \
$opts] } {
return 0
}
# Same thing with struct and union.
gdb_test "ptype struct A" "type = struct A \{\[\r\n\]+\[ \t\]+struct B \\*b;\[\r\n\]+\[ \t\]+struct A \\*next;\[\r\n\]+\}.*" "ptype structure A"
gdb_test "ptype struct B" "type = struct B \{\[\r\n\]+\[ \t\]+struct C \\*c;\[\r\n\]+\[ \t\]+int \\wombat;\[\r\n\]+\}.*" "ptype structure B"
gdb_test "ptype struct C" "type = struct C \{\[\r\n\]+\[ \t\]+struct A \\*a;\[\r\n\]+\[ \t\]+int b;\[\r\n\]+\}.*" "ptype structure C"