system call return
'getuid' 所對應的system call service 為sys_getuid，讓我們來看一下Linux 的實作 ... 另外，要提醒的是，'current->uid' 並非直接return 給user-space ..., System call 是user application 與Linux device driver 的溝通介面。 ... return 0; }. 當我們打開/dev/debug檔案時，範例所呼叫open()函數會叫起 ...
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 system call return 相關參考資料
explain_system(3): explain system errors - Linux man page
The explain_system function is used to obtain an explanation of an error returned by the system(3) system call. The least the message will contain is the value of ... https://linux.die.net Linux System Calls' Forum, #2：(第199,201,200,202,224號系統服務 ...
'getuid' 所對應的system call service 為sys_getuid，讓我們來看一下Linux 的實作 ... 另外，要提醒的是，'current->uid' 並非直接return 給user-space ... http://www.jollen.org Linux 驅動程式觀念解析, #2: System Calls
System call 是user application 與Linux device driver 的溝通介面。 ... return 0; }. 當我們打開/dev/debug檔案時，範例所呼叫open()函數會叫起 ... http://www.jollen.org Nano雞排: Linux Kernel（13）- syscall
System call的return type為long，主要是要相容64bit，return value通常代表失敗或成功，失敗時，error code當常寫入global variable “errno”。 http://nano-chicken.blogspot.c return value of system() in C - Stack Overflow
As the docs state system() return -1 if creating the new process for the ... a command specified in command by calling /bin/sh -c command, and returns after the ... https://stackoverflow.com System call return value in C - Stack Overflow
Use system() function. It returns the status of command executed. If this is 0, then it would seem this is successfull. https://stackoverflow.com system(3) - Linux manual page - man7.org
The system() library function uses fork(2) to create a child process that executes ... If all system calls succeed, then the return value is the termination status of the ... http://man7.org The Linux kernel: System Calls
Above we said: typically, the kernel returns a negative value to indicate an error. But this would mean that any system call only can return positive values. https://www.win.tue.nl What are the return values of system calls in Assembly? - Stack ...
Linux system call return values (in EAX / RAX on x86) are either a non-negative value for success, or a negative error code. e.g. -EFAULT if you pass an invalid ... https://stackoverflow.com 【CC++】Linux下使用system()函数一定要谨慎- 恋恋美食的个人空间 ...
system() executes a command specified in command by calling /bin/sh -c command, and returns after the command has been completed. https://my.oschina.net |