diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-10-17 11:17:07 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2015-10-19 01:37:11 +0200 |
| commit | 312f482d395b591398296b5472a3884a12716cbd (patch) | |
| tree | 682402fa4c470d4aa7c1334f7616408779559a8f /libc/sysdeps/linux/lm32/clone.S | |
| parent | c807e03c88504cf01508daa6dbae9e93dacfcf3c (diff) | |
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
Diffstat (limited to 'libc/sysdeps/linux/lm32/clone.S')
| -rw-r--r-- | libc/sysdeps/linux/lm32/clone.S | 52 |
1 files changed, 52 insertions, 0 deletions
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 <features.h> +#include <sys/syscall.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +#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 */ |