arch_prctl - 設定架構特定的執行緒狀態
#include <asm/prctl.h> #include <sys/prctl.h> int arch_prctl(int code, unsigned long addr) |
arch_prctl() 函式設定架構的具體進程或執行緒狀態。程式碼選擇一個子功能和引數地址傳遞給它。
x86-64的子函式是：
| 標籤 | 描述 |
|---|---|
| ARCH_SET_FS | Set the 64bit base for the FS register toaddr. |
| ARCH_GET_FS | Return the 64bit base value for theFS register of the current thread in theunsigned long pointed to by the address parameter |
| ARCH_SET_GS | Set the 64bit base for the GS register to addr. |
| ARCH_GET_GS | Return the 64bit base value for the GS register of the current thread in the unsigned long pointed to by the addressparameter. |
| 標籤 | 描述 |
|---|---|
| EFAULT | addr points to an unmapped address or is outside the process address space. |
| EINVAL | code is not a valid subcommand. |
| EPERM | addr is outside the process address space. |
Man page written by Andi Kleen.
arch_prctl() 是一個Linux/x86-64的擴充套件，並且不應該被用在程式準備移植。