diff --git a/ChangeLog b/ChangeLog
index 99339f4..2c03164 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,136 @@
+2018-12-05  Han Mao  <han_mao@c-sky.com>
+
+	* config.h.in (CSKYABI, CSKY_HARD_FLOAT): New Define.
+	* scripts/build-many-glibcs.py: Add C-SKY targets.
+	* sysdeps/csky/Implies: New file.
+	* sysdeps/csky/Makefile: Likewise.
+	* sysdeps/csky/abiv2/__longjmp.S: Likewise.
+	* sysdeps/csky/abiv2/crti.S: Likewise.
+	* sysdeps/csky/abiv2/crtn.S: Likewise.
+	* sysdeps/csky/abiv2/csky-mcount.S: Likewise.
+	* sysdeps/csky/abiv2/dl-trampoline.S: Likewise.
+	* sysdeps/csky/abiv2/memcmp.S: Likewise.
+	* sysdeps/csky/abiv2/memcpy.S: Likewise.
+	* sysdeps/csky/abiv2/memmove.S: Likewise.
+	* sysdeps/csky/abiv2/memset.S: Likewise.
+	* sysdeps/csky/abiv2/setjmp.S: Likewise.
+	* sysdeps/csky/abiv2/start.S: Likewise.
+	* sysdeps/csky/abiv2/strcmp.S: Likewise.
+	* sysdeps/csky/abiv2/strcpy.S: Likewise.
+	* sysdeps/csky/abiv2/strlen.S: Likewise.
+	* sysdeps/csky/abiv2/tls-macros.h: Likewise.
+	* sysdeps/csky/abort-instr.h: Likewise.
+	* sysdeps/csky/atomic-machine.h: Likewise.
+	* sysdeps/csky/bits/endian.h: Likewise.
+	* sysdeps/csky/bits/fenv.h: Likewise.
+	* sysdeps/csky/bits/link.h: Likewise.
+	* sysdeps/csky/bits/setjmp.h: Likewise.
+	* sysdeps/csky/bsd-_setjmp.S: Likewise.
+	* sysdeps/csky/bsd-setjmp.S: Likewise.
+	* sysdeps/csky/configure: Likewise.
+	* sysdeps/csky/configure.ac: Likewise.
+	* sysdeps/csky/dl-machine.h: Likewise.
+	* sysdeps/csky/dl-procinfo.c: Likewise.
+	* sysdeps/csky/dl-procinfo.h: Likewise.
+	* sysdeps/csky/dl-sysdep.h: Likewise.
+	* sysdeps/csky/dl-tls.h: Likewise.
+	* sysdeps/csky/fpu/fclrexcpt.c: Likewise.
+	* sysdeps/csky/fpu/fedisblxcpt.c: Likewise.
+	* sysdeps/csky/fpu/feenablxcpt.c: Likewise.
+	* sysdeps/csky/fpu/fegetenv.c: Likewise.
+	* sysdeps/csky/fpu/fegetexcept.c: Likewise.
+	* sysdeps/csky/fpu/fegetmode.c: Likewise.
+	* sysdeps/csky/fpu/fegetround.c: Likewise.
+	* sysdeps/csky/fpu/feholdexcpt.c: Likewise.
+	* sysdeps/csky/fpu/fenv_libc.h: Likewise.
+	* sysdeps/csky/fpu/fenv_private.h: Likewise.
+	* sysdeps/csky/fpu/fesetenv.c: Likewise.
+	* sysdeps/csky/fpu/fesetexcept.c: Likewise.
+	* sysdeps/csky/fpu/fesetmode.c: Likewise.
+	* sysdeps/csky/fpu/fesetround.c: Likewise.
+	* sysdeps/csky/fpu/feupdateenv.c: Likewise.
+	* sysdeps/csky/fpu/fgetexcptflg.c: Likewise.
+	* sysdeps/csky/fpu/fix-fp-int-convert-overflow.h: Likewise.
+	* sysdeps/csky/fpu/fpu_control.h: Likewise.
+	* sysdeps/csky/fpu/fraiseexcpt.c: Likewise.
+	* sysdeps/csky/fpu/fsetexcptflg.c: Likewise.
+	* sysdeps/csky/fpu/ftestexcept.c: Likewise.
+	* sysdeps/csky/fpu/libm-test-ulps: Likewise.
+	* sysdeps/csky/fpu/libm-test-ulps-name: Likewise.
+	* sysdeps/csky/gccframe.h: Likewise.
+	* sysdeps/csky/jmpbuf-unwind.h: Likewise.
+	* sysdeps/csky/ldsodefs.h: Likewise.
+	* sysdeps/csky/libc-tls.c: Likewise.
+	* sysdeps/csky/linkmap.h: Likewise.
+	* sysdeps/csky/machine-gmon.h: Likewise.
+	* sysdeps/csky/math-tests-trap.h: Likewise.
+	* sysdeps/csky/memusage.h: Likewise.
+	* sysdeps/csky/nofpu/Implies: Likewise.
+	* sysdeps/csky/nofpu/libm-test-ulps: Likewise.
+	* sysdeps/csky/nofpu/libm-test-ulps-name: Likewise.
+	* sysdeps/csky/nofpu/math-tests-exceptions.h: Likewise.
+	* sysdeps/csky/nofpu/math-tests-rounding.h: Likewise.
+	* sysdeps/csky/nptl/Makefile: Likewise.
+	* sysdeps/csky/nptl/bits/pthreadtypes-arch.h: Likewise.
+	* sysdeps/csky/nptl/bits/semaphore.h: Likewise.
+	* sysdeps/csky/nptl/pthread-offsets.h: Likewise.
+	* sysdeps/csky/nptl/pthreaddef.h: Likewise.
+	* sysdeps/csky/nptl/tcb-offsets.sym: Likewise.
+	* sysdeps/csky/nptl/tls.h: Likewise.
+	* sysdeps/csky/preconfigure: Likewise.
+	* sysdeps/csky/sfp-machine.h: Likewise.
+	* sysdeps/csky/sotruss-lib.c: Likewise.
+	* sysdeps/csky/stackinfo.h: Likewise.
+	* sysdeps/csky/sysdep.h: Likewise.
+	* sysdeps/csky/tininess.h: Likewise.
+	* sysdeps/csky/tst-audit.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/Implies: Likewise.
+	* sysdeps/unix/sysv/linux/csky/Makefile: Likewise.
+	* sysdeps/unix/sysv/linux/csky/Versions: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/syscall.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise.
+	* sysdeps/unix/sysv/linux/csky/bits/mman.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/bits/shm.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise.
+	* sysdeps/unix/sysv/linux/csky/configure: Likewise.
+	* sysdeps/unix/sysv/linux/csky/configure.ac: Likewise.
+	* sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/ld.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/ldconfig.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libanl.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libc.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libcrypt.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libdl.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libnsl.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libpthread.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libresolv.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/librt.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libthread_db.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/libutil.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/csky/localplt.data: Likewise.
+	* sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise.
+	* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/pt-vfork.S: Likewise.
+	* sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sys/procfs.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise.
+	* sysdeps/unix/sysv/linux/csky/syscalls.list: Likewise.
+	* sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise.
+
 2018-12-17  Mao Han  <han_mao@c-sky.com>
 
 	* sysdeps/unix/sysv/linux/Makefile: Add statx_cp.c.
diff --git a/NEWS b/NEWS
index ae80818..300e978 100644
--- a/NEWS
+++ b/NEWS
@@ -46,6 +46,12 @@ Major new features:
   incosistent mutex state after fork call in multithread environment.
   In both popen and system there is no direct access to user-defined mutexes.
 
+* Support for the C-SKY ABIV2 running on Linux has been added.  This port
+  requires at least binutils-2.32, gcc-9.0, and linux-4.20.  Two ABIs are
+  supported:
+    - C-SKY ABIV2 soft-float little-endian
+    - C-SKY ABIV2 hard-float little-endian
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * The glibc.tune tunable namespace has been renamed to glibc.cpu and the
diff --git a/README b/README
index 27a9fd4..eb9b0b3 100644
--- a/README
+++ b/README
@@ -25,6 +25,7 @@ The GNU C Library supports these configurations for using Linux kernels:
 	aarch64*-*-linux-gnu
 	alpha*-*-linux-gnu
 	arm-*-linux-gnueabi
+	csky-*-linux-gnuabiv2
 	hppa-*-linux-gnu
 	i[4567]86-*-linux-gnu
 	x86_64-*-linux-gnu	Can build either x86_64 or x32
