| .global vfork | |
| .type vfork,@function | |
| vfork: | |
| /* riscv does not have SYS_vfork, so we must use clone instead */ | |
| /* note: riscv's clone = clone(flags, sp, ptidptr, tls, ctidptr) */ | |
| li a7, 220 | |
| li a0, 0x100 | 0x4000 | 17 /* flags = CLONE_VM | CLONE_VFORK | SIGCHLD */ | |
| mv a1, sp | |
| /* the other arguments are ignoreable */ | |
| ecall | |
| .hidden __syscall_ret | |
| j __syscall_ret |