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Bruce Ashfield
bdc258eb99
Bumping the routerstationpro SRCREV for the following fix:
mm/msync: tweak tmpfs patch for syscall msync
Commit 1c3ae5441 "mm: msync: fix issues of sys_msync on tmpfs"
fixes the problem that sys_msync fails with tmpfs on MIPS CPU which
has feature "cache alias".
But it makes POSIX test cases mlockall/3-6 3-7 fail on MIPS.
Case mlockall/3-6 creates a share memory, and maps it to memory.
fd = shm_open(SHM_NAME, O_RDWR|O_CREAT, S_IRUSR|S_IWUSR);
foo = mmap(NULL, BUF_SIZE, PROT_WRITE, MAP_SHARED, fd, 0);
Then calls mlockall to lock all of the virtual address space:
if (mlockall(MCL_CURRENT) == -1) {
At last tests whether the virtual address spaces are locked:
page_ptr = (void*) ((long)foo - ((long)foo % page_size));
result = msync(page_ptr, page_size, MS_SYNC|MS_INVALIDATE);
It espects msync returns -1 with EBUSY but returns 0.
Case mlockall/3-7 creates a normal file to mmap, and it fails too.
Tweak the patch to:
1 Moved the CONFIG_TMPFS block down in the loop so that the normal
vma flag checking will perform.
2 There may be other VMAs in the list after this VMA which belongs
to tmpfs file, and we should sync them after the tmpfs one. So
remove the break loop clauses.
Signed-off-by: Kang Kai <kai.kang@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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/community/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 = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/