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🆕 fork vfork
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@ -1,7 +1,6 @@
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#include <libc/unistd.h>
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#include <libsystem/syscall.h>
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/**
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* @brief 往屏幕上输出字符串
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*
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@ -10,9 +9,9 @@
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* @param bg_color 背景色
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* @return int64_t
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*/
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int64_t put_string(char* str, uint64_t front_color, uint64_t bg_color)
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int64_t put_string(char *str, uint64_t front_color, uint64_t bg_color)
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{
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return syscall_invoke(SYS_PUT_STRING, str, front_color, bg_color,0,0,0,0,0);
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return syscall_invoke(SYS_PUT_STRING, (uint64_t)str, front_color, bg_color, 0, 0, 0, 0, 0);
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}
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/**
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* @brief 关闭文件接口
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@ -35,7 +34,7 @@ int close(int fd)
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*/
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ssize_t read(int fd, void *buf, size_t count)
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{
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return (ssize_t)syscall_invoke(SYS_READ, fd, buf, count,0,0,0,0,0);
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return (ssize_t)syscall_invoke(SYS_READ, fd, (uint64_t)buf, count, 0, 0, 0, 0, 0);
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}
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/**
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@ -48,7 +47,7 @@ ssize_t read(int fd, void *buf, size_t count)
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*/
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ssize_t write(int fd, void const *buf, size_t count)
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{
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return (ssize_t)syscall_invoke(SYS_WRITE, fd, buf, count,0,0,0,0,0);
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return (ssize_t)syscall_invoke(SYS_WRITE, fd, (uint64_t)buf, count, 0, 0, 0, 0, 0);
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}
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/**
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@ -61,5 +60,25 @@ ssize_t write(int fd, void const *buf, size_t count)
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*/
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off_t lseek(int fd, off_t offset, int whence)
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{
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return (off_t)syscall_invoke(SYS_LSEEK, fd, offset, whence, 0,0,0,0,0);
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return (off_t)syscall_invoke(SYS_LSEEK, fd, offset, whence, 0, 0, 0, 0, 0);
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}
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/**
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* @brief fork当前进程
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*
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* @return pid_t
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*/
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pid_t fork(void)
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{
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return (pid_t)syscall_invoke(SYS_FORK, 0, 0, 0, 0, 0, 0, 0, 0);
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}
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/**
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* @brief fork当前进程,但是与父进程共享VM、flags、fd
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*
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* @return pid_t
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*/
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pid_t vfork(void)
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{
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return (pid_t)syscall_invoke(SYS_VFORK, 0, 0, 0, 0, 0, 0, 0, 0);
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}
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