From 312f482d395b591398296b5472a3884a12716cbd Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 17 Oct 2015 11:17:07 +0200 Subject: lm32: add new architecture Add support for FPGA systems from Lattice Semiconductor http://www.latticesemi.com Merge https://github.com/m-labs/uclibc-lm32.git --- libc/sysdeps/linux/lm32/clone.S | 52 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 libc/sysdeps/linux/lm32/clone.S (limited to 'libc/sysdeps/linux/lm32/clone.S') diff --git a/libc/sysdeps/linux/lm32/clone.S b/libc/sysdeps/linux/lm32/clone.S new file mode 100644 index 000000000..adc8b1a36 --- /dev/null +++ b/libc/sysdeps/linux/lm32/clone.S @@ -0,0 +1,52 @@ +#include +#include +#define _ERRNO_H 1 +#include + +#ifdef __NR_clone + +.text +.global clone +.type clone,@function +.align 4 + +clone: + be r1, r0, 2f + be r2, r0, 2f + + mvi r8, __NR_clone + scall + + mvi r3, -4095 + bgeu r1, r3, 1f + + be r1, r0, __thread_start + + ret + +__thread_start: + mvi fp, 0 + call r2 + + calli HIDDEN_JUMPTARGET(_exit) + + /* Stop the unstoppable. */ +9: + bi 9b + +2: + mvi r1, -EINVAL +1: + addi sp, sp, -8 + sw (sp+4), ra + sw (sp+8), r1 + calli __errno_location + lw r2, (sp+8) + lw ra, (sp+4) + sub r2, r0, r2 + sw (r1+0), r2 + mvi r1, -1 + addi sp, sp, 8 + ret + +#endif /* __NR_clone */ -- cgit v1.2.3