Re: [PULL 00/14] Linux user for 5.2 patches

[Laurent Vivier <laurent@vivier.eu>]

Le 21/08/2020 à 21:08, Laurent Vivier a écrit :
> Le 21/08/2020 à 18:23, Peter Maydell a écrit :
>> On Thu, 13 Aug 2020 at 07:51, Laurent Vivier <laurent@vivier.eu> wrote:
>>>
>>> The following changes since commit d0ed6a69d399ae193959225cdeaa9382746c91cc:
>>>
>>>   Update version for v5.1.0 release (2020-08-11 17:07:03 +0100)
>>>
>>> are available in the Git repository at:
>>>
>>>   git://github.com/vivier/qemu.git tags/linux-user-for-5.2-pull-request
>>>
>>> for you to fetch changes up to 04275cad60c8f99e0dd7f56aecda68ceac926da8:
>>>
>>>   linux-user: Fix 'utimensat()' implementation (2020-08-12 10:09:58 +0200)
>>>
>>> ----------------------------------------------------------------
>>> Add btrfs ioctls
>>> Add clock_getres_time64, timer_gettime64, timer_settime64,
>>>     timerfd_gettime64, timerfd_settime64
>>> Some fixes (page protection, print_fdset, timerspec, itimerspec)
>>>
>>> ----------------------------------------------------------------
>>
>> Fails to compile:
>>
>> ../../linux-user/syscall_types.h:407:28: error:
>> ‘BTRFS_INO_LOOKUP_USER_PATH_MAX’ undeclared here (not in a function);
>> did you mean ‘BTRFS_INO_LOOKUP_PATH_MAX’?
>>         MK_ARRAY(TYPE_CHAR, BTRFS_INO_LOOKUP_USER_PATH_MAX)) /* path */
>>                             ^
>>
>> ../../linux-user/syscall_types.h:451:17: error:
>> ‘BTRFS_MAX_ROOTREF_BUFFER_NUM’ undeclared here (not in a function)
>>                  BTRFS_MAX_ROOTREF_BUFFER_NUM), /* rootref */
>>                  ^
>>
>> On PPC, even more errors, relating to not having
>> BTRFS_PATH_NAME_MAX, PTRFS_VOL_NAME_MAX, etc.
>>
>> Not sure if this was a semantic conflict with the meson
>> conversion, or just an assumption of a newer btrfs.h
>> than some systems have.
> 
> Well, for me master is also broken (F32, linux-user only, static):
> 
> Compiling C object libqemuutil.a.p/util_compatfd.c.o
> ../../../Projects/qemu/util/compatfd.c: In function 'qemu_signalfd':
> ../../../Projects/qemu/util/compatfd.c:103:19: error: 'SYS_signalfd'
> undeclared (first use in this function); did you mean 'SYS_signalfd4'?
>   103 |     ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8);
>       |                   ^~~~~~~~~~~~
>       |                   SYS_signalfd4
> ../../../Projects/qemu/util/compatfd.c:103:19: note: each undeclared
> identifier is reported only once for each function it appears in

"--static" seems broken too:

$ '.../configure' '--disable-system' '--enable-linux-user'
'--disable-tools' '--static' '--disable-slirp' '--enable-capstone=git'
C++ compiler c++ does not work with C compiler cc
Disabling C++ specific optional code
cross containers  docker

NOTE: guest cross-compilers enabled: cc
The Meson build system
Version: 0.55.0
...
             gprof enabled: NO
            sparse enabled: NO
            strip binaries: YES
                  profiler: NO
              static build: NO
               SDL support: NO
         SDL image support: NO
               GTK support: YES
...

Thanks,
Laurent