From 2fcffe26e815b7125a357c83b59617ab93c16b41 Mon Sep 17 00:00:00 2001 From: Guo Ren Date: Sun, 15 Oct 2017 20:59:34 +0800 Subject: csky: port to uclibc-ng Follow the steps to build c-sky uclibc linux system: 1. git clone https://github.com/c-sky/buildroot.git 2. cd buildroot 3. make qemu_csky_ck810_uclibc_defconfig 4. make Follow the buildroot/board/qemu/csky/readme.txt to run. This buildroot toolchain is pre-build, But you can rebuild the c-sky uclibc-ng alone and install it to the buildroot sysroot manually. We'll try our best to improve the uclibc-ng continuously. Signed-off-by: Guo Ren --- libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S (limited to 'libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S') diff --git a/libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S b/libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S new file mode 100644 index 000000000..113e94d51 --- /dev/null +++ b/libpthread/nptl/sysdeps/csky/pthread_spin_trylock.S @@ -0,0 +1,16 @@ +#define _ERRNO_H 1 +#include +#include + +.text +ENTRY (pthread_spin_trylock) + mov a2, a0 + movi a0, 0 + movi a1, 1 + trap 2 // trap 2 use to cmpxchg + cmpnei a0, 0 + bf 1f + movi a0, EBUSY +1: + jmp r15 +END (pthread_spin_trylock) -- cgit v1.2.3