Le 08/06/2016 à 15:29, riku.voi...@linaro.org a écrit :
> From: Riku Voipio <riku.voi...@linaro.org>
>
> The following changes since commit 76462405809d29bab65a3699686998ba124ab942:
>
> Merge remote-tracking branch
> 'remotes/pmaydell/tags/pull-target-arm-20160606-1' into staging (2016-06-06
> 17:02:42 +0100)
>
> are available in the git repository at:
>
> git://git.linaro.org/people/riku.voipio/qemu.git
> tags/pull-linux-user-20160608
>
> for you to fetch changes up to 014628a705bdaf31c09915c29e61f4088956564d:
>
> linux-user: In fork_end(), remove correct CPUs from CPU list (2016-06-08
> 12:06:57 +0300)
>
> ----------------------------------------------------------------
> linux-user pull request for June 2016
>
> ----------------------------------------------------------------
>
> Laurent Vivier (5):
> linux-user: Fix qemu-binfmt-conf.sh to store config across reboot
> linux-user: add rtnetlink(7) support
> linux-user: support netlink protocol NETLINK_KOBJECT_UEVENT
> linux-user: add netlink audit
> linux-user: check if NETLINK_ROUTE is available
>
> Peter Maydell (31):
> linux-user: Factor out handle_signal code from
> process_pending_signals()
> linux-user: Move handle_pending_signal() to avoid need for declaration
> linux-user: Fix stray tab-indent
> linux-user: Factor out uses of do_sigprocmask() from sigreturn code
> linux-user: Define macro for size of host kernel sigset_t
> linux-user: Use safe_syscall for sigsuspend syscalls
> linux-user: Fix race between multiple signals
> linux-user: Use safe_syscall for kill, tkill and tgkill syscalls
> linux-user: Use both si_code and si_signo when converting siginfo_t
> linux-user: Avoid possible misalignment in target_to_host_siginfo()
> linux-user: provide frame information in x86-64 safe_syscall
> linux-user: Fix handling of arm_fadvise64_64 syscall
> linux-user: Fix NR_fadvise64 and NR_fadvise64_64 for 32-bit guests
> linux-user: Fix error conversion in 64-bit fadvise syscall
> linux-user: Use safe_syscall wrapper for readv and writev syscalls
> linux-user: Use safe_syscall wrapper for connect syscall
> linux-user: Use safe_syscall wrapper for send* and recv* syscalls
> linux-user: Use safe_syscall wrapper for msgsnd and msgrcv
> linux-user: Use safe_syscall wrapper for mq_timedsend and
> mq_timedreceive
> linux-user: Use safe_syscall wrapper for flock
> linux-user: Use safe_syscall wrapper for rt_sigtimedwait syscall
> linux-user: Use safe_syscall wrapper for sleep syscalls
> linux-user: Use safe_syscall wrapper for poll and ppoll syscalls
> linux-user: Use safe_syscall wrapper for epoll_wait syscalls
> linux-user: Use safe_syscall wrapper for semop
> linux-user: Use safe_syscall wrapper for accept and accept4 syscalls
> linux-user: Use safe_syscall wrapper for ioctl
> linux-user: Correct signedness of target_flock l_start and l_len
> fields
> linux-user: Make target_strerror() return 'const char *'
> linux-user: Special-case ERESTARTSYS in target_strerror()
> linux-user: In fork_end(), remove correct CPUs from CPU list
>
> Timothy E Baldwin (8):
> linux-user: Remove redundant default action check in queue_signal()
> linux-user: Remove redundant gdb_queuesig()
> linux-user: Remove real-time signal queuing
> linux-user: Queue synchronous signals separately
> linux-user: Block signals during sigaction() handling
> linux-user: pause() should not pause if signal pending
> linux-user: Restart exit() if signal pending
> linux-user: Restart fork() if signals pending
>
> configure | 36 +-
> gdbstub.c | 13 -
> include/exec/gdbstub.h | 1 -
> linux-user/host/x86_64/safe-syscall.inc.S | 10 +
> linux-user/main.c | 9 +-
> linux-user/qemu.h | 64 +-
> linux-user/signal.c | 567 ++++++++-------
> linux-user/strace.c | 4 +-
> linux-user/syscall.c | 1076
> +++++++++++++++++++++++++----
> linux-user/syscall_defs.h | 49 +-
> scripts/qemu-binfmt-conf.sh | 389 +++++++++--
> 11 files changed, 1698 insertions(+), 520 deletions(-)
> mode change 100644 => 100755 scripts/qemu-binfmt-conf.sh
>
This is a great update!
All the work around the signal management really improves the quality of
QEMU linux-user.
For instance, I thought for years that "dbench" cannot work correctly in
linux-user mode because the thread is stuck in a wait() and all the
state machine is managed in a signal handler (that was never called)...
and now it works! [1]
Thank you Peter!
Laurent
[1] qemu-m68k on i7-4790@3.6GHz: Throughput 217.83 MB/sec 1 procs
Throughput 879.323 MB/sec 8 procs
while a Quadra 800 is around 2 MB/sec...
