diff options
Diffstat (limited to 'src/thread/aarch64/syscall_cp.s')
| -rw-r--r-- | src/thread/aarch64/syscall_cp.s | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/thread/aarch64/syscall_cp.s b/src/thread/aarch64/syscall_cp.s new file mode 100644 index 00000000..6302a0bd --- /dev/null +++ b/src/thread/aarch64/syscall_cp.s @@ -0,0 +1,27 @@ +// __syscall_cp_asm(&self->cancel, nr, u, v, w, x, y, z) +// x0 x1 x2 x3 x4 x5 x6 x7 + +// syscall(nr, u, v, w, x, y, z) +// x8 x0 x1 x2 x3 x4 x5 + +.global __syscall_cp_asm +.type __syscall_cp_asm,%function +__syscall_cp_asm: +.global __cp_begin +__cp_begin: + ldr w0,[x0] + cbnz w0,1f + mov x8,x1 + mov x0,x2 + mov x1,x3 + mov x2,x4 + mov x3,x5 + mov x4,x6 + mov x5,x7 + svc 0 +.global __cp_end +__cp_end: + ret + + // cbnz might not be able to jump far enough +1: b __cancel |