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Add dup,dup2 (#224)

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* dup,dup2

* fix: sys_dup2语义与posix不一致的问题

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Co-authored-by: longjin <longjin@RinGoTek.cn>
This commit is contained in:
Gou Ngai
2023-04-02 15:43:53 +08:00
committed by GitHub
parent d7b31a969f
commit 2b771e32f5
11 changed files with 166 additions and 39 deletions
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2
user/libs/libsystem/syscall.h
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@ -32,6 +32,8 @@
#define SYS_SIGACTION 24 // 设置进程的信号处理动作
#define SYS_RT_SIGRETURN 25 // 从信号处理函数返回
#define SYS_GETPID 26 // 获取当前进程的pid（进程标识符）
#define SYS_DUP 28
#define SYS_DUP2 29
/**
* @brief 用户态系统调用函数