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([2804:1b3:a7c3:7d19:f1c1:9fb4:472a:ab68]) by smtp.gmail.com with ESMTPSA id m9-20020aca5809000000b00353fe4fb4casm7137927oib.48.2022.10.19.15.14.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Oct 2022 15:14:52 -0700 (PDT) To: libc-alpha@sourceware.org Subject: [PATCH 11/30] Linux: consolidate readlink implementation Date: Wed, 19 Oct 2022 19:14:14 -0300 Message-Id: <20221019221433.1082017-12-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221019221433.1082017-1-adhemerval.zanella@linaro.org> References: <20221019221433.1082017-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Adhemerval Zanella via Libc-alpha Reply-To: Adhemerval Zanella Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org Sender: "Libc-alpha" Use readlink syscall if defined, otherwise readlinkat. Checked on x86_64-linux-gnu. --- sysdeps/unix/sysv/linux/{generic => }/readlink.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) rename sysdeps/unix/sysv/linux/{generic => }/readlink.c (80%) diff --git a/sysdeps/unix/sysv/linux/generic/readlink.c b/sysdeps/unix/sysv/linux/readlink.c similarity index 80% rename from sysdeps/unix/sysv/linux/generic/readlink.c rename to sysdeps/unix/sysv/linux/readlink.c index 9f25811a35..083dcaf502 100644 --- a/sysdeps/unix/sysv/linux/generic/readlink.c +++ b/sysdeps/unix/sysv/linux/readlink.c @@ -1,4 +1,5 @@ -/* Copyright (C) 2011-2022 Free Software Foundation, Inc. +/* Read value of a symbolic link. Linux version. + Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -25,6 +26,10 @@ ssize_t __readlink (const char *path, char *buf, size_t len) { - return INLINE_SYSCALL (readlinkat, 4, AT_FDCWD, path, buf, len); +#ifdef __NR_readlink + return INLINE_SYSCALL_CALL (readlink, path, buf, len); +#else + return INLINE_SYSCALL_CALL (readlinkat, AT_FDCWD, path, buf, len); +#endif } weak_alias (__readlink, readlink) -- 2.34.1