名稱

arch_prctl - 設置架構特定的線程狀態

內容簡介

#include <asm/prctl.h>
#include <sys/prctl.h>

int arch_prctl(int code, unsigned long addr)

描述

arch_prctl() 函數設置架構的具體進程或線程狀態。代碼選擇一個子功能和參數地址傳遞給它。

x86-64的子函數是：

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.

錯誤

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.

作者

Man page written by Andi Kleen.

遵循於

arch_prctl() 是一個Linux/x86-64的擴展，並且不應該被用在程序準備移植。

請另參閱

• mmap (2)

• modify_ldt (2)

• prctl (2)

• set_thread_area (2)