libroot: Replace strcspn and strchrnul with musl versions.

Removes the last BSD advertising clause from the "string" directory.

libroot: Replace custom ffs implementation with musl's.

It already has a per-arch implementation or a fallback in
musl's own arch_atomic.h, which we already imported so we
might as well leverage it.

Convert strdup.c to C++.

More work towards hybrid support

* All packaging architecture dependent variables do now have a
respective suffix and are set up for each configured packaging
architecture, save for the kernel and boot loader variables, which
are still only set up for the primary architecture.
For convenience TARGET_PACKAGING_ARCH, TARGET_ARCH, TARGET_LIBSUPC++,
and TARGET_LIBSTDC++ are set to the respective values for the primary
packaging architecture by default.
* Introduce a set of MultiArch* rules to help with building targets for
multiple packaging architectures. Generally the respective targets are
(additionally) gristed with the packaging architecture. For libraries
the additional grist is usually omitted for the primary architecture
(e.g. libroot.so and <x86>libroot.so for x86_gcc2/x86 hybrid), so that
Jamfiles for targets built only for the primary architecture don't
need to be changed.
* Add multi-arch build support for all targets needed for the stage 1
cross devel package as well as for libbe (untested).

Since we are patching strncpy.c change it over to strncpy.cpp.

Stop using glibc's asm strlen and use our own.

Mostly done because olta want less dependency on glibc.
It should also make porting a tiny bit simpler.

Testresults, mean values on Haiku from libMicro:
* with glibc: strlen_10: 0.03859S, strlen_1k: 1.67075S.
* with strlen.cpp: strlen_10: 0.03854S, strlen_1k: 1.66938S.

So at least on my machine it's possible to beat glibc ;)

Rename strlen.c strnlen.c to strlen.cpp strnlen.cpp.

No changes in the files themselves in this commit.

Introduce __set_errno() throughout libroot.

* add errno_private.h, which defines the __set_errno() macro with
and without tracing
* instead of setting errno manually, all libroot's code now invokes
__set_errno(), which makes it much easier to trace changes to errno
* redirect glibc's use of __set_errno() to our own version

* reintegrated posix-locale

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37725 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added POSIX function strndup(), closing ticket #3309.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28939 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented x86 assembly version of memset().
* memset() is now available through the commpage.
* CPU modules can provide a model-optimized memset().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27952 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the arch specific stuff in src/system/kernel/lib into arch/...
subdirectories. Also moved the x86 kernel arch_string.S there.
* Moved memcpy.c from src/system/libroot/posix/string into the
arch/generic subdirectory.
* Dealt with the consequences of moving things around. Affected are also
the boot loader and runtime loader builds.

Adjust the m68k and ppc parts, too, but only the x86 build is tested.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27947 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch from Mika Lindqvist: This patch implements both strlwr() and strupr() functions in libroot and includes strupr() in kernel build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26226 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Introduced new header directory headers/private/system which is supposed
to contain headers shared by kernel and userland (mainly libroot).
* Moved quite a few private kernel headers to the new location. Split
several kernel headers into a shared part and one that is still kernel
private. Adjusted all affected Jamfiles and source in the standard x86
build accordingly. The build for other architectures and for test code
may be broken.
* Quite a bit of userland code still includes private kernel headers.
Mostly those are <util/*> headers. The ones that aren't strictly
kernel-only should be moved to some other place (maybe
headers/private/shared/util).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged branch haiku/branches/developer/bonefish/optimization revision
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.

Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96

Turn the assembly optimized memcpy (simple rep movsd) back on for x86. Had to hack around the make system a bit, and the result is pretty nasty, specifically due to the amount of places in the system where various targets poke their fingers into the libroot directory.
The solution is less than optimal, but should work for now.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20722 a95241bf-73f2-0310-859d-f6bbb57e9c96

replaced strlen with glibc optimized version i586 and powerpc32
if build fails, simply delete the object file posix_build.o manually


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16819 a95241bf-73f2-0310-859d-f6bbb57e9c96

* libroot and the runtime loader are no longer built with kernel rules.
* New rule Ld, analogously to KernelLd.
* Added StaticLibrary parameter for supplying additional objects.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15191 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added temporary implementation of strxfrm().

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14909 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added memccpy() - not there in BeOS, but part of the POSIX specs.
Contributed by Alexander Deynichenko.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14592 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged changes from branch build_system_redesign at revision 14573.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14574 a95241bf-73f2-0310-859d-f6bbb57e9c96

This should fix the build after all the kernel/system renaming.
If anything is still broken (and was not before :)), please shout.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12361 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed src/kernel to src/system.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12359 a95241bf-73f2-0310-859d-f6bbb57e9c96

Convert strdup.c to C++.

More work towards hybrid support

* All packaging architecture dependent variables do now have a
respective suffix and are set up for each configured packaging
architecture, save for the kernel and boot loader variables, which
are still only set up for the primary architecture.
For convenience TARGET_PACKAGING_ARCH, TARGET_ARCH, TARGET_LIBSUPC++,
and TARGET_LIBSTDC++ are set to the respective values for the primary
packaging architecture by default.
* Introduce a set of MultiArch* rules to help with building targets for
multiple packaging architectures. Generally the respective targets are
(additionally) gristed with the packaging architecture. For libraries
the additional grist is usually omitted for the primary architecture
(e.g. libroot.so and <x86>libroot.so for x86_gcc2/x86 hybrid), so that
Jamfiles for targets built only for the primary architecture don't
need to be changed.
* Add multi-arch build support for all targets needed for the stage 1
cross devel package as well as for libbe (untested).

Since we are patching strncpy.c change it over to strncpy.cpp.

Stop using glibc's asm strlen and use our own.

Mostly done because olta want less dependency on glibc.
It should also make porting a tiny bit simpler.

Testresults, mean values on Haiku from libMicro:
* with glibc: strlen_10: 0.03859S, strlen_1k: 1.67075S.
* with strlen.cpp: strlen_10: 0.03854S, strlen_1k: 1.66938S.

So at least on my machine it's possible to beat glibc ;)

Rename strlen.c strnlen.c to strlen.cpp strnlen.cpp.

No changes in the files themselves in this commit.

Introduce __set_errno() throughout libroot.

* add errno_private.h, which defines the __set_errno() macro with
and without tracing
* instead of setting errno manually, all libroot's code now invokes
__set_errno(), which makes it much easier to trace changes to errno
* redirect glibc's use of __set_errno() to our own version

* reintegrated posix-locale

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37725 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added POSIX function strndup(), closing ticket #3309.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28939 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented x86 assembly version of memset().
* memset() is now available through the commpage.
* CPU modules can provide a model-optimized memset().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27952 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the arch specific stuff in src/system/kernel/lib into arch/...
subdirectories. Also moved the x86 kernel arch_string.S there.
* Moved memcpy.c from src/system/libroot/posix/string into the
arch/generic subdirectory.
* Dealt with the consequences of moving things around. Affected are also
the boot loader and runtime loader builds.

Adjust the m68k and ppc parts, too, but only the x86 build is tested.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27947 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch from Mika Lindqvist: This patch implements both strlwr() and strupr() functions in libroot and includes strupr() in kernel build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26226 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Introduced new header directory headers/private/system which is supposed
to contain headers shared by kernel and userland (mainly libroot).
* Moved quite a few private kernel headers to the new location. Split
several kernel headers into a shared part and one that is still kernel
private. Adjusted all affected Jamfiles and source in the standard x86
build accordingly. The build for other architectures and for test code
may be broken.
* Quite a bit of userland code still includes private kernel headers.
Mostly those are <util/*> headers. The ones that aren't strictly
kernel-only should be moved to some other place (maybe
headers/private/shared/util).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged branch haiku/branches/developer/bonefish/optimization revision
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.

Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96

Turn the assembly optimized memcpy (simple rep movsd) back on for x86. Had to hack around the make system a bit, and the result is pretty nasty, specifically due to the amount of places in the system where various targets poke their fingers into the libroot directory.
The solution is less than optimal, but should work for now.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20722 a95241bf-73f2-0310-859d-f6bbb57e9c96

replaced strlen with glibc optimized version i586 and powerpc32
if build fails, simply delete the object file posix_build.o manually


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16819 a95241bf-73f2-0310-859d-f6bbb57e9c96

* libroot and the runtime loader are no longer built with kernel rules.
* New rule Ld, analogously to KernelLd.
* Added StaticLibrary parameter for supplying additional objects.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15191 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added temporary implementation of strxfrm().

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14909 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added memccpy() - not there in BeOS, but part of the POSIX specs.
Contributed by Alexander Deynichenko.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14592 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged changes from branch build_system_redesign at revision 14573.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14574 a95241bf-73f2-0310-859d-f6bbb57e9c96

This should fix the build after all the kernel/system renaming.
If anything is still broken (and was not before :)), please shout.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12361 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed src/kernel to src/system.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12359 a95241bf-73f2-0310-859d-f6bbb57e9c96