Merge branch 'memcpy-v3'

This is a major rework of how Haiku implements memset() and memcpy() on
x64. These functions are now removed from the commpage and reimplemented
in C++ using sse2 where it p

Merge branch 'memcpy-v3'

This is a major rework of how Haiku implements memset() and memcpy() on
x64. These functions are now removed from the commpage and reimplemented
in C++ using sse2 where it proved to be beneficial. That required some
serious changes in handling fpu state. Now, full fpu state is saved
at each interrupt, but not on task switch.

Some numbers: results of building targets: kernel libroot.so runtime_loader
and HaikuDepot on Intel i7 4770 with 16GB of memory.

real
user
sys

before:
1m54.367
7m40.617
0m58.641

1m33.922
8m12.362
1m0.852

1m32.922
8m10.509
1m1.006

1m31.947
8m12.596
1m1.353

after:
1m50.959
7m43.118
0m58.923

1m30.644
8m6.385
1m0.584

1m31.549
8m7.976
0m59.792

1m31.546
8m6.733
1m0.242

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kernel/x86_64: remove memset and memcpy from commpage

There is absolutely no reason for these functions to be in commpage,
they don't do anything that involves the kernel in any way.

Additionaly, t

kernel/x86_64: remove memset and memcpy from commpage

There is absolutely no reason for these functions to be in commpage,
they don't do anything that involves the kernel in any way.

Additionaly, this patch rewrites memset and memcpy to C++, current
implementation is quite simple (though it may perform surprisingly
well when dealing with large buffers on cpus with ermsb). Better
versions are coming soon.

Signed-off-by: Paweł Dziepak <pdziepak@quarnos.org>

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Merge branch 'master' into package-management

Additional changes:
* Add src/system/kernel/lib/zlib, which builds a kernel version of zlib,
needed by packagefs.
* BuildFeatures: Add a build feature

Merge branch 'master' into package-management

Additional changes:
* Add src/system/kernel/lib/zlib, which builds a kernel version of zlib,
needed by packagefs.
* BuildFeatures: Add a build feature "gcc2" to allow for easier checks.
* Referenceable.cpp: Include <OS.h> instead of <debugger.h>. The latter
is not needed and prevents building for the build platform.
* zlib/zutil.h: Fix gcc 2 build. We really should use the external
package instead.

Conflicts:
.gitignore
build/jam/BuildSetup
build/jam/FileRules
build/jam/FloppyBootImage
build/jam/HaikuImage
build/jam/ImageRules
build/jam/KernelRules
build/jam/NetBootArchive
build/jam/OptionalBuildFeatures
build/jam/OptionalLibPackages
build/jam/OptionalPackageDependencies
build/jam/OptionalPackages
build/scripts/build_haiku_image
configure
data/bin/installoptionalpackage
data/system/boot/Bootscript
headers/os/app/Message.h
headers/os/package/PackageInfo.h
headers/os/package/PackageInfoAttributes.h
headers/os/package/PackageInfoSet.h
headers/os/package/PackageRoster.h
headers/os/package/PackageVersion.h
headers/os/package/hpkg/PackageInfoAttributeValue.h
headers/os/storage/FindDirectory.h
headers/os/storage/Node.h
headers/os/support/StringList.h
headers/private/system/directories.h
src/add-ons/kernel/drivers/audio/ac97/es1370/Jamfile
src/add-ons/kernel/file_systems/packagefs/AttributeIndex.cpp
src/add-ons/kernel/file_systems/packagefs/Jamfile
src/add-ons/kernel/file_systems/packagefs/Package.cpp
src/add-ons/kernel/file_systems/packagefs/Package.h
src/add-ons/kernel/file_systems/packagefs/PackageDomain.cpp
src/add-ons/kernel/file_systems/packagefs/PackageDomain.h
src/add-ons/kernel/file_systems/packagefs/PackageFSRoot.cpp
src/add-ons/kernel/file_systems/packagefs/PackageLinkDirectory.cpp
src/add-ons/kernel/file_systems/packagefs/PackageLinkDirectory.h
src/add-ons/kernel/file_systems/packagefs/PackageLinkSymlink.cpp
src/add-ons/kernel/file_systems/packagefs/PackageLinkSymlink.h
src/add-ons/kernel/file_systems/packagefs/PackageLinksDirectory.cpp
src/add-ons/kernel/file_systems/packagefs/PackageNode.h
src/add-ons/kernel/file_systems/packagefs/ResolvableFamily.cpp
src/add-ons/kernel/file_systems/packagefs/Version.cpp
src/add-ons/kernel/file_systems/packagefs/Version.h
src/add-ons/kernel/file_systems/packagefs/Volume.cpp
src/add-ons/kernel/file_systems/packagefs/Volume.h
src/add-ons/kernel/file_systems/packagefs/kernel_interface.cpp
src/add-ons/kernel/file_systems/userlandfs/shared/driver_settings.c
src/apps/deskbar/BarApp.cpp
src/apps/deskbar/BarMenuBar.cpp
src/apps/deskbar/BarMenuBar.h
src/apps/deskbar/BarView.cpp
src/apps/deskbar/BarView.h
src/apps/deskbar/BarWindow.cpp
src/apps/deskbar/BarWindow.h
src/apps/deskbar/DeskbarMenu.cpp
src/apps/deskbar/DeskbarMenu.h
src/apps/deskbar/DeskbarUtils.cpp
src/apps/deskbar/DeskbarUtils.h
src/apps/deskbar/ExpandoMenuBar.cpp
src/apps/deskbar/ExpandoMenuBar.h
src/apps/deskbar/TeamMenu.cpp
src/apps/processcontroller/ProcessController.cpp
src/apps/remotedesktop/RemoteDesktop.cpp
src/bin/bash/config-top.h
src/bin/finddir.c
src/bin/package/Jamfile
src/bin/package/command_add.cpp
src/bin/package/command_create.cpp
src/bin/package/command_list.cpp
src/bin/package_repo/command_list.cpp
src/bin/pkgman/command_refresh.cpp
src/build/libbe/support/Jamfile
src/build/libpackage/Jamfile
src/build/libroot/Jamfile
src/build/libroot/fs.cpp
src/build/libroot/remapped_functions.h
src/kits/locale/MutableLocaleRoster.cpp
src/kits/opengl/GLRendererRoster.cpp
src/kits/package/PackageInfo.cpp
src/kits/package/PackageInfoSet.cpp
src/kits/package/PackageRoster.cpp
src/kits/package/PackageVersion.cpp
src/kits/package/RepositoryCache.cpp
src/kits/package/hpkg/PackageWriterImpl.cpp
src/kits/package/hpkg/ReaderImplBase.cpp
src/kits/package/hpkg/WriterImplBase.cpp
src/kits/print/PrintTransport.cpp
src/kits/print/Printer.cpp
src/kits/screensaver/ScreenSaverRunner.cpp
src/kits/support/StringList.cpp
src/kits/tracker/ContainerWindow.cpp
src/kits/tracker/DeskWindow.cpp
src/kits/tracker/PoseView.cpp
src/libs/print/libprint/Transport.cpp
src/preferences/printers/AddPrinterDialog.cpp
src/preferences/screensaver/ScreenSaverWindow.cpp
src/servers/debug/DebugServer.cpp
src/servers/input/AddOnManager.cpp
src/servers/media_addon/MediaAddonServer.cpp
src/system/boot/Jamfile
src/system/boot/loader/Jamfile
src/system/boot/loader/loader.cpp
src/system/boot/loader/vfs.cpp
src/system/kernel/fs/vfs.cpp
src/system/kernel/fs/vfs_boot.cpp
src/system/libroot/os/find_directory.cpp
src/system/runtime_loader/runtime_loader.cpp
src/tools/package/Jamfile

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Merge branch 'master' into sam460ex

Merge branch 'aslr'

commpage: randomize position of commpage

This patch introduces randomization of commpage position. From now on commpage
table contains offsets from begining to of the commpage to the particular
comm

commpage: randomize position of commpage

This patch introduces randomization of commpage position. From now on commpage
table contains offsets from begining to of the commpage to the particular
commpage entry. Similary addresses of symbols in ELF memory image "commpage"
are just offsets from the begining of the commpage.

This patch also updates KDL so that commpage entries are recognized and shown
correctly in stack trace. An update of Debugger is yet to be done.

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x86: move x86_userspace_thread_exit() from user stack to commpage

x86_userspace_thread_exit() is a stub originally placed at the bottom of
each thread user stack that ensures any thread invokes exit

x86: move x86_userspace_thread_exit() from user stack to commpage

x86_userspace_thread_exit() is a stub originally placed at the bottom of
each thread user stack that ensures any thread invokes exit_thread() upon
returning from its main higher level function.

Putting anything that is expected to be executed on a stack causes problems
when implementing data execution prevention. Code of x86_userspace_thread_exit()
is now moved to commpage which seems to be much more appropriate place for it.

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Merge branch 'master' into sam460ex

Conflicts:
src/system/boot/platform/u-boot/arch/ppc/Jamfile

Merge branch 'x86_64'

Implemented signals for x86_64.

Fixed commpage for x86_64.

Since the commpage is at a kernel address, changed 64-bit paging code
to match x86's behaviour of allowing user-accessible mappings to be
created in the kernel portion of

Fixed commpage for x86_64.

Since the commpage is at a kernel address, changed 64-bit paging code
to match x86's behaviour of allowing user-accessible mappings to be
created in the kernel portion of the address space. This is also
required by some drivers.

show more ...

Added some x86_64 system/kernel headers and kernel Jamfiles.

* Not all of these headers are correct yet, just adding what's necessary
to get things to compile for the time being.