* [kernel][mem] Multiple instances of small memory allocation algorithm

* [kernel][mem] Change small memory management algorithm memory header flag

* [kernel][mem] Fix assertion problem

* [kernel][slab] Multiple instances of slab memory management algorithm

* [kernel][memheap] Remove rt_malloc/rt_free/rt_realloc and other related memory interfaces

* [kernel][mem] Clean up memory space of small memory management objects

* [kernel][kservice] Add memory application interface and thread protection interface

* [kernel][kservice] Fix function return value problem

* [kernel][memheap] Optimize memheaptrace print

* [kernel][memheap] Support best mode

* [kernel][memory] Remove semaphore lock

* [kernel][memheap] Add locked flag

* [kernel][memory] Support malloc memory in interrupt

* [kernel][memheap] Add 'memheapcheck' cmd

* [kernel][mem] Fix failure to request full memory

* [kernel][memheap] Fix compilation warning

* [kernel][mem] Fix mem realloc ASSERT

* [examples][testcases] Add small mem testcase

* [examples][mem_tc] Modify test memory size

* [examples][testcases] Add slab memory management algorithm test case

* [examples][testcases] fix small memory management algorithm test case

* [kernel][memory] Adjusting memory allocation algorithm object definition and interface

* [kernel][memory] Fix compilation warning

* [examples][utest] Fix mem test case

* [examples][utest] fix slab test case

* [utest][testcases] Shorten test time

* [kernel][memory] Formatting code

* [examples][utest] Adjust test run time

* [examples][utest] Formatting code

* [bsp] update all rtconfig.h

CCFLAGS is used by gcc and g++ compiler. So CFLAGS should be used for
gcc to avoid passing gcc flags to g++.

in components/libc/libdl/dlmodule.c.

components/libc/compilers/minilibc/time.c.

maybe this dummy code is no longer required, so deleted.

Debian-9.5/amd64.

But building hello.mo with i386-elf-gcc (5.5.0) cross compiler on
OpenBSD-6.3/amd64, undefined reference to 'rt_kprintf' error occurs.

To avoid this error, "compile and link" process needs to be divided to
simply "compile" and "link".

On Debian-9.5, both previous and current method produces same hello.mo.

We have to improve disk image creation (Linux dependent),
this is a future homework.

1. Change the type of cmd to 'int';
2. Remove RT_LWIP_USING_RT_MEM macro;

1. upddate kernel module to support i386
2. update libdl to support open *.so by absolute path
3. new test case bsp/x86/src/hello.c to test i386 module feature
Signed-off-by: Nparai <parai@foxmail.com>

Signed-off-by: NParai Wang <parai@foxmail.com>

currently only read okay, write is not supported, this is enough for
me to study ELF, but the floppy is really small, now only about 400kb
space free showed by df("/").
Signed-off-by: Nparai <parai@foxmail.com>

most of the code copy from tinix, just make it run, code quality is not good.
Signed-off-by: Nparai <parai@foxmail.com>

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2352 bbd45198-f89e-11dd-88c7-29a3b14d5316

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2351 bbd45198-f89e-11dd-88c7-29a3b14d5316

in order to use buildbot.py

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2028 bbd45198-f89e-11dd-88c7-29a3b14d5316

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1964 bbd45198-f89e-11dd-88c7-29a3b14d5316