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new: 内核态fork

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fslongjin
2022-08-01 11:34:06 +08:00
parent 311a6181b5
commit 2fd21e0395
6 changed files with 135 additions and 27 deletions
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3
kernel/syscall/syscall.c
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@ -86,6 +86,7 @@ long enter_syscall_int(ul syscall_id, ul arg0, ul arg1, ul arg2, ul arg3, ul arg
: "=a"(err_code)
: "a"(syscall_id), "m"(arg0), "m"(arg1), "m"(arg2), "m"(arg3), "m"(arg4), "m"(arg5), "m"(arg6), "m"(arg7)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
return err_code;
}
@ -426,12 +427,10 @@ uint64_t sys_lseek(struct pt_regs *regs)
uint64_t sys_fork(struct pt_regs *regs)
{
// kdebug("sys_fork");
return do_fork(regs, 0, regs->rsp, 0);
}
uint64_t sys_vfork(struct pt_regs *regs)
{
kdebug("sys vfork");
return do_fork(regs, CLONE_VM | CLONE_FS | CLONE_SIGNAL, regs->rsp, 0);
}