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([2001:a61:24b3:de01:7310:e730:497d:ea6a]) by smtp.gmail.com with ESMTPSA id 2sm14881820wrq.87.2020.11.24.01.51.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Nov 2020 01:51:31 -0800 (PST) Cc: mtk.manpages@gmail.com, linux-man , linux-kernel , Guo Ren , linux-csky@vger.kernel.org, Arnd Bergmann Subject: Re: set_thread_area.2: csky architecture undocumented To: "Alejandro Colomar (man-pages)" References: <014e670b-2a11-3deb-4e7e-bfe9defd8597@gmail.com> From: "Michael Kerrisk (man-pages)" Message-ID: Date: Tue, 24 Nov 2020 10:51:30 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <014e670b-2a11-3deb-4e7e-bfe9defd8597@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org Hi Alex, On 11/23/20 10:31 PM, Alejandro Colomar (man-pages) wrote: > Hi Michael, > > SYNOPSIS > #include > > #if defined __i386__ || defined __x86_64__ > # include > > int get_thread_area(struct user_desc *u_info); > int set_thread_area(struct user_desc *u_info); > > #elif defined __m68k__ > > int get_thread_area(void); > int set_thread_area(unsigned long tp); > > #elif defined __mips__ > > int set_thread_area(unsigned long addr); > > #endif > > Note: There are no glibc wrappers for these system calls; see > NOTES. > > > $ grep -rn 'SYSCALL_DEFINE.*et_thread_area' > arch/csky/kernel/syscall.c:6: > SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) > arch/mips/kernel/syscall.c:86: > SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) > arch/x86/kernel/tls.c:191: > SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info) > arch/x86/kernel/tls.c:243: > SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info) > arch/x86/um/tls_32.c:277: > SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, user_desc) > arch/x86/um/tls_32.c:325: > SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, user_desc) > > > See kernel commit 4859bfca11c7d63d55175bcd85a75d6cee4b7184 > > > I'd change > - #elif defined __mips__ > + #elif defined(__mips__ || __csky__) > > and then change the rest of the text to add csky when appropriate. > Am I correct? AFAICT, you are correct. I think the reason that csky is missing is that the architecture was added after this manual pages was added. Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/