* [Bug libdw/24158] New: run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host.
@ 2019-02-02 21:33 slyfox at inbox dot ru
2019-02-14 11:56 ` [Bug libdw/24158] " mark at klomp dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: slyfox at inbox dot ru @ 2019-02-02 21:33 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
Bug ID: 24158
Summary: run-backtrace-native-biarch.sh test fails on CC='gcc
-m32' CXX='g++ -m32' x86_64 host.
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libdw
Assignee: unassigned at sourceware dot org
Reporter: slyfox at inbox dot ru
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
The test failure happens on x86_64-pc-linux-gnu multi-lib system.
How to reproduce:
$ ./configure --enable-maintainer-mode CC='gcc -m32' CXX='g++ -m32'
CFLAGS=-g CXXFLAGS=-g LDFLAGS=-g
$ make && make check VERBOSE=1
FAIL: run-backtrace-native-biarch.sh
====================================
0x5652d6481000 0x5652d6486000
/home/slyfox/dev/git/elfutils/tests/backtrace-child-biarch
0x7fe2f83e9000 0x7fe2f85b5000 /lib64/libc-2.29.so
0x7fe2f85b9000 0x7fe2f85d8000 /lib64/libpthread-2.29.so
0x7fe2f8657000 0x7fe2f8681000 /lib64/ld-2.29.so
0x7fff099fc000 0x7fff099fe000 [vdso: 26219]
TID 26219:
/home/slyfox/dev/git/elfutils/tests/backtrace: dwfl_thread_getframes: no error
backtrace: linux-pid-attach.c:318: pid_set_initial_registers: Assertion
`pid_arg->tid_attached == 0' failed.
./test-subr.sh: line 84: 26218 Aborted (core dumped)
LD_LIBRARY_PATH="${built_library_path}${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
$VALGRIND_CMD "$@"
backtrace-child-biarch: no main
rmdir: failed to remove 'test-26212': Directory not empty
FAIL run-backtrace-native-biarch.sh (exit status: 1)
============================================================================
Testsuite summary for elfutils 0.175
============================================================================
# TOTAL: 205
# PASS: 203
# SKIP: 1
# XFAIL: 0
# FAIL: 1
# XPASS: 0
# ERROR: 0
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* [Bug libdw/24158] run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host.
2019-02-02 21:33 [Bug libdw/24158] New: run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host slyfox at inbox dot ru
@ 2019-02-14 11:56 ` mark at klomp dot org
2019-02-16 10:39 ` mark at klomp dot org
2022-03-24 11:38 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2019-02-14 11:56 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-02-14
CC| |mark at klomp dot org
Ever confirmed|0 |1
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
I have replicated this, but don't fully understand it yet.
But this is kind of a weird issue. If you are building with -m32 on an 64bit
system you don't want/cannot have the run-backtrace-native-biarch.sh test.
Since that tests 32-bit-on-64-bit. So this is really a configure issue that
should notice that -m32 has already been added, so the test should be skipped.
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* [Bug libdw/24158] run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host.
2019-02-02 21:33 [Bug libdw/24158] New: run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host slyfox at inbox dot ru
2019-02-14 11:56 ` [Bug libdw/24158] " mark at klomp dot org
@ 2019-02-16 10:39 ` mark at klomp dot org
2022-03-24 11:38 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2019-02-16 10:39 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugzilla.redhat.com
| |/show_bug.cgi?id=1201486
--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
https://bugzilla.redhat.com/show_bug.cgi?id=1201486
Describes the same issue.
There is some more discussion on what it would take to make 32bit processes
handle 64bit processes on the same host. There is a WIP patch for
ppc32-on-ppc64, but it is unclear if this can be extended to other arches.
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* [Bug libdw/24158] run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host.
2019-02-02 21:33 [Bug libdw/24158] New: run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host slyfox at inbox dot ru
2019-02-14 11:56 ` [Bug libdw/24158] " mark at klomp dot org
2019-02-16 10:39 ` mark at klomp dot org
@ 2022-03-24 11:38 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2022-03-24 11:38 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
--- Comment #3 from Mark Wielaard <mark at klomp dot org> ---
This disables the "biarch" tests in the case of a 32bit build.
commit d85945f1056641180e03fb48ab770b893125786e
Author: Mark Wielaard <mark@klomp.org>
Date: Mon Mar 21 00:34:24 2022 +0100
configure: Don't check whether -m64 works for 32bit host biarch check
Running a 32bit backtrace test against a 64bit binary doesn't work.
Only a 64bit binary can backtrace a 32bit binary. So disable the
biarch check that inserts -m64 for a 32bit host.
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
Signed-off-by: Mark Wielaard <mark@klomp.org>
But lets keep this bug open. It would in theory be good if this worked.
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2019-02-02 21:33 [Bug libdw/24158] New: run-backtrace-native-biarch.sh test fails on CC='gcc -m32' CXX='g++ -m32' x86_64 host slyfox at inbox dot ru
2019-02-14 11:56 ` [Bug libdw/24158] " mark at klomp dot org
2019-02-16 10:39 ` mark at klomp dot org
2022-03-24 11:38 ` mark at klomp dot org
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