92a003253e
Noteworthy changes in release 4.11 (2015-12-21)
===============================================
* Changes in behavior
* Some syscalls have different names depending on architecture and
personality. In these cases, syscall filtering and printing now
consistently uses the names that match corresponding __NR_* kernel
macros of the tracee's architecture and personality.
* Added strace prefix to all diagnostic messages.
* Improvements
* Enhanced and extended test suite.
* Implemented reliable tracing of processes whose personality differs
from the personality of strace, fixed decoding of 32-bit personality
syscalls on 64-bit architectures.
* When some data referenced by syscall arguments is irrelevant or cannot
be read from tracee's memory, strace now prints its address consistently.
* When a syscall is restarted using restart_syscall mechanism, strace now
shows the syscall name on architectures that expose this information.
* Print values returned by epoll_create1, eventfd, eventfd2, fanotify_init,
inotify_init1, perf_event_open, pipe, pipe2, signalfd, signalfd4, socket,
socketpair, timerfd, and timerfd_create syscalls, as well as F_DUPFD and
F_DUPFD_CLOEXEC fcntl commands, as file descriptors.
* Optimized decoding of indirect socket syscalls.
* Implemented decoding of nanoseconds along with seconds in stat family
syscalls (addresses Fedora bug #1251176).
* Implemented decoding of struct statfs.f_flags in statfs syscall.
* Implemented decoding of siginfo_t.si_syscall and siginfo_t.si_arch
in SIGSYS signal.
* Implemented decoding of indirect syscall on mips o32.
* Implemented decoding of IPPROTO_IP control messages.
* Implemented decoding of setsockopt syscall multicast arguments.
* Enhanced decoding of struct sigevent.
* Enhanced decoding of block, loop, mtd, ptp, rtc, SG_IO, socket, tty,
and v4l2 ioctl syscall arguments.
* Enhanced decoding of epoll_create, fcntl, fcntl64, futex, getdents,
getdents64, getsockopt, io_*, mount, msgctl, prctl, quotactl, recvfrom,
sendfile, setsockopt, and shmctl syscalls.
* Implemented decoding of bpf, execveat, ioperm, iopl, kcmp, kexec_file_load,
lookup_dcookie, membarrier, memfd_create, mlock2, name_to_handle_at,
open_by_handle_at, sched_getattr, sched_setattr, and userfaultfd syscalls.
* Updated lists of AF_*, EPOLL_*, FALLOC_FL_*, F_*, INPUT_PROP_*, IPPROTO_*,
IPV6_*, IP_*, KEY_*, LOCK_*, MNT_*, MS_*, PACKET_*, PERF_FLAG_*, PF_*,
PR_*, PTRACE_O_*, RENAME_*, SCTP_*, SECBIT_*, SO_*, TCP_*, and siginfo_t
constants.
* Added Nios II architecture support.
* Added new syscall entries to match Linux 4.4.
* Bug fixes
* Fixed potential short read of strings from tracee's memory.
* Fixed -qq option in conjunction with -o option.
* Fixed filtering of <unavailable> syscalls.
* Fixed decoding of ioctl syscall command on aarch64 and 32-bit architectures
with 64-bit aligned structures.
* Fixed decoding of eventfd2, epoll_create1, signalfd4, and sync_file_range2
syscall flags arguments.
* Fixed decoding of 4th argument of clock_nanosleep syscall.
* Fixed decoding of getpagesize syscall on m68k.
* Fixed decoding of getrandom and seccomp syscalls on aarch64.
* Fixed decoding of timezone argument of gettimeofday and settimeofday
* syscalls.
* Fixed decoding of offset argument of mmap2 syscall on arm, sparc,
and sparc64.
* Fixed decoding of pipe syscall on alpha and mips.
* Fixed decoding of pipe2 syscall on ia64, sh, sparc, and sparc64.
* Fixed decoding of signal mask argument of pselect6 syscall on x32.
* Fixed decoding of signal mask of rt_sigreturn syscall on aarch64, m68k,
and x32.
* Fixed decoding of 4th argument of semctl indirect syscall.
* Fixed decoding of sa_restorer and sa_mask of sigaction syscall on m68k.
* Fixed decoding of statfs64 and fstatfs64 syscalls on arm eabi.
* Fixed decoding of struct dirent on x32.
* Fixed decoding of times syscall return value on mips n32 and x32.
* Fixed decoding of path argument of umount2 syscall
(addresses Debian bug #785050).
* Worked around a kernel bug in tracing privileged executables.
* Fixed various errors in mapping between syscall numbers and associated
information like the number of syscall arguments, the name of syscall,
and syscall decoder.
(From OE-Core rev: f3e6bf135b7b69614d1405ad99e1264ea70a9197)
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org
documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org
meta-yocto(-bsp): Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org
Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.