鍍金池/ 教程/ Linux/ arch_prctl()函數(shù) Unix/Linux
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arch_prctl()函數(shù) Unix/Linux

名稱(chēng)

arch_prctl - 設(shè)置架構(gòu)特定的線程狀態(tài)

內(nèi)容簡(jiǎn)介

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

int arch_prctl(int code, unsigned long addr)

描述

arch_prctl() 函數(shù)設(shè)置架構(gòu)的具體進(jìn)程或線程狀態(tài)。代碼選擇一個(gè)子功能和參數(shù)地址傳遞給它。

x86-64的子函數(shù)是:

標(biāo)簽 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(cuò)誤

標(biāo)簽 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.

遵循于

arch_prctl() 是一個(gè)Linux/x86-64的擴(kuò)展,并且不應(yīng)該被用在程序準(zhǔn)備移植。

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