diff options
Diffstat (limited to 'src/thread/x86_64/syscall_cp.s')
| -rw-r--r-- | src/thread/x86_64/syscall_cp.s | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/thread/x86_64/syscall_cp.s b/src/thread/x86_64/syscall_cp.s new file mode 100644 index 00000000..1894ce19 --- /dev/null +++ b/src/thread/x86_64/syscall_cp.s @@ -0,0 +1,24 @@ +.text +.global __syscall_cp_asm +.type __syscall_cp_asm,%function +__syscall_cp_asm: + lea 1f(%rip),%rax + mov %rax,8(%rdi) + mov %rsp,(%rdi) + mov 16(%rdi),%eax + test %eax,%eax + jnz 2f + mov %rsi,%rax + mov %rdx,%rdi + mov %rcx,%rsi + mov %r8,%rdx + mov %r9,%r10 + mov 8(%rsp),%r8 + mov 16(%rsp),%r9 +1: syscall + ret +2: xor %edi,%edi + mov %rdi,8(%r10) + mov %rdi,(%r10) + dec %rdi + jmp pthread_exit |