builder@xam-power8-1:~$ uname -m
ppc64le
builder@xam-power8-1:~$ objdump -T /usr/lib/firefox/libxul.so | grep
GLIBCXX_3.4.22
0000000000000000 DF *UND* 0000000000000000 GLIBCXX_3.4.22
_ZNSt6thread15_M_start_threadESt10unique_ptrINS_6_StateESt14default_deleteIS1_EEPFvvE
0000000000000000 DF *UND* 0000000000000000 GLIBCXX_3.4.22
_ZNSt6thread6_StateD2Ev
vs
root@breakfast:/# uname -m
x86_64
root@breakfast:/# objdump -T /usr/lib/firefox/libxul.so | grep GLIBCXX_3.4.22
The mangling of
std::thread::_M_start_thread(std::unique_ptr<std::thread::_State,
std::default_delete<std::thread::_State> >, void (*)()) and
std::thread::_State::~_State() is supposed to be handled by the block in
build/unix/stdc++compat/stdc++compat.cpp starting at line 104:
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 21)
/* Expose the definitions for the old ABI, allowing us to call its functions */
# define _GLIBCXX_THREAD_ABI_COMPAT 1
# include <thread>
namespace std {
/* The old ABI has a thread::_M_start_thread(shared_ptr<_Impl_base>),
* while the new has thread::_M_start_thread(unique_ptr<_State>, void(*)()).
* There is an intermediate ABI at version 3.4.21, with
* thread::_M_start_thread(shared_ptr<_Impl_base>, void(*)()).
* The void(*)() parameter is only there to keep a reference to pthread_create
* on the caller side, and is unused in the implementation
* We're creating an entry point for the new and intermediate ABIs, and make
* them call the old ABI. */
__attribute__((weak)) void thread::_M_start_thread(shared_ptr<_Impl_base> impl,
void (*)()) {
_M_start_thread(std::move(impl));
}
# if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 22)
/* We need a _Impl_base-derived class wrapping a _State to call the old ABI
* from what we got by diverting the new API */
struct StateWrapper : public thread::_Impl_base {
unique_ptr<thread::_State> mState;
StateWrapper(unique_ptr<thread::_State> aState) :
mState(std::move(aState)) {}
void _M_run() override { mState->_M_run(); }
};
__attribute__((weak)) void thread::_M_start_thread(unique_ptr<_State> aState,
void (*)()) {
auto impl = std::make_shared<StateWrapper>(std::move(aState));
_M_start_thread(std::move(impl));
}
/* For some reason this is a symbol exported by new versions of libstdc++,
* even though the destructor is default there too */
__attribute__((weak)) thread::_State::~_State() = default;
# endif
} // namespace std
#endif
I don't know what's broken in the build process causing this code not to
be included in ppc64el builds.
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1819013
Title:
Hard dependency on libstdc++ 6.1.0 at runtime on ppc64el on xenial
Status in firefox package in Ubuntu:
Confirmed
Bug description:
$ firefox
XPCOMGlueLoad error for file /usr/lib/firefox/libxul.so:
/usr/lib/powerpc64le-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not
found (required by /usr/lib/firefox/libxul.so)
Couldn't load XPCOM.
$ ldd /usr/lib/firefox/libxul.so | head -1
/usr/lib/firefox/libxul.so: /usr/lib/powerpc64le-linux-gnu/libstdc++.so.6:
version `GLIBCXX_3.4.22' not found (required by /usr/lib/firefox/libxul.so)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 65.0.1+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.15.0-29.31~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-29-generic ppc64le
AddonCompatCheckDisabled: False
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Mar 7 10:00 seq
crw-rw---- 1 root audio 116, 33 Mar 7 10:00 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: ppc64el
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
BuildID: 20190215002040
Channel: Unavailable
Date: Thu Mar 7 10:02:49 2019
ForcedLayersAccel: False
InstallationDate: Installed on 2018-01-11 (419 days ago)
InstallationMedia: Ubuntu-Server 16.04.3 LTS "Xenial Xerus" - Release ppc64el
(20170801)
IpRoute:
default via 10.128.60.1 dev enP2p1s0f0
10.128.60.0/25 dev enP2p1s0f0 proto kernel scope link src 10.128.60.99
NoProfiles: True
PciMultimedia:
ProcLoadAvg: 2.46 2.48 2.23 3/1329 109239
ProcSwaps:
Filename Type Size Used Priority
/dev/sda3 partition 37941184 1110016
-2
ProcVersion: Linux version 4.15.0-29-generic (buildd@bos02-ppc64el-002) (gcc
version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.10)) #31~16.04.1-Ubuntu
SMP Wed Jul 18 08:50:43 UTC 2018
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
cpu_cores: Number of cores present = 16
cpu_coreson: Number of cores online = 16
cpu_smt: SMT=8
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