From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 16 Oct 2024 11:02:56 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1t0zvk-00500u-1S for lore@lore.pengutronix.de; Wed, 16 Oct 2024 11:02:56 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1t0zvj-00061C-GY for lore@pengutronix.de; Wed, 16 Oct 2024 11:02:56 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=X+tNheWc3RaoA4PcaOzuVAw50stbZNOrxkzoM1OATqs=; b=PIhdG2jHe28euYQZ38Cgc/mhrZ G/y0dZdn8sPnmtfWaqUggsZEw5m12ciL7dxvkr05yXY7WiNDsz8y9FM62qYys3ORUHW0PtZL8dqLU 09g4Rgh0q26f4T5ESe9eI1+yyEdBhLSxgh04JcuITF3zQUg8dfEgFOTkRrtFV3t0xH2C/tjohB/Yz JxDu7SKv4zRY+1X7+H4B3AT+2i37OHJ3lmSQFcUlHDU4GfqxkapNDDmzUmuLBm+4Q/X3zQ0GYBX4V vlLWfSdtutX+smzfzlkm6eIRvqqvz4u9nGFb9W11aK9bLqmvkGlr9rJpQnjTp1nQ1ygzjqizSktKr rvuygBNg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t0zv8-0000000B9Qe-16yG; Wed, 16 Oct 2024 09:02:18 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t0zui-0000000B9B3-3xPa for barebox@lists.infradead.org; Wed, 16 Oct 2024 09:01:59 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1t0zuh-0005Lp-FY; Wed, 16 Oct 2024 11:01:51 +0200 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1t0zug-002EMU-VV; Wed, 16 Oct 2024 11:01:50 +0200 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1t0zug-00GdhR-2s; Wed, 16 Oct 2024 11:01:50 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Wed, 16 Oct 2024 11:01:43 +0200 Message-Id: <20241016090150.3963002-7-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241016090150.3963002-1-a.fatoum@pengutronix.de> References: <20241016090150.3963002-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241016_020153_219479_88338DFA X-CRM114-Status: GOOD ( 10.95 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.1 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 06/13] libfile: stub out file descriptor API for PBL X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) To optimize out calls to undefined functions in PBL at compile-time instead of link time, let's define stubs for the functions that are referenced in obj-pbl-y files, but inside function sections that are ultimately unreferenced. We don't use IS_PROPER here as VFS support is always available in barebox proper. Signed-off-by: Ahmad Fatoum --- include/fcntl.h | 8 ++++++ include/libfile.h | 7 +++++ include/unistd.h | 72 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 87 insertions(+) diff --git a/include/fcntl.h b/include/fcntl.h index a746471411b5..ff91676119c4 100644 --- a/include/fcntl.h +++ b/include/fcntl.h @@ -3,6 +3,7 @@ #define __FCNTL_H #include +#include #define AT_FDCWD -100 /* Special value used to indicate openat should use the current @@ -38,7 +39,14 @@ #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) +#ifndef __PBL__ int openat(int dirfd, const char *pathname, int flags); +#else +static inline int openat(int dirfd, const char *pathname, int flags, ...) +{ + return -ENOSYS; +} +#endif static inline int open(const char *pathname, int flags, ...) { diff --git a/include/libfile.h b/include/libfile.h index f772ff8b6af2..79bef9c75fa7 100644 --- a/include/libfile.h +++ b/include/libfile.h @@ -32,7 +32,14 @@ int copy_recursive(const char *src, const char *dst); int compare_file(const char *f1, const char *f2); +#ifndef __PBL__ int open_and_lseek(const char *filename, int mode, loff_t pos); +#else +static inline int open_and_lseek(const char *filename, int mode, loff_t pos) +{ + return -ENOSYS; +} +#endif /* Create a directory and its parents */ int make_directory(const char *pathname); diff --git a/include/unistd.h b/include/unistd.h index f3d2378687e4..7a04bc6443d6 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -4,11 +4,13 @@ #include #include +#include #define RW_BUF_SIZE (unsigned)4096 struct stat; +#ifndef __PBL__ int unlinkat(int dirfd, const char *pathname, int flags); int close(int fd); int lstatat(int dirfd, const char *filename, struct stat *s); @@ -26,6 +28,76 @@ char *pushd(const char *dir); int popd(char *dir); const char *getcwd(void); int ftruncate(int fd, loff_t length); +#else +static inline int unlinkat(int dirfd, const char *pathname, int flags) +{ + return -ENOSYS; +} +static inline int close(int fd) +{ + return -ENOSYS; +} +static inline int lstatat(int dirfd, const char *filename, struct stat *s) +{ + return -ENOSYS; +} +static inline int statat(int dirfd, const char *filename, struct stat *s) +{ + return -ENOSYS; +} +static inline int fstat(int fd, struct stat *s) +{ + return -ENOSYS; +} +static inline ssize_t read(int fd, void *buf, size_t count) +{ + return -ENOSYS; +} +static inline ssize_t pread(int fd, void *buf, size_t count, loff_t offset) +{ + return -ENOSYS; +} +static inline ssize_t write(int fd, const void *buf, size_t count) +{ + return -ENOSYS; +} +static inline ssize_t pwrite(int fd, const void *buf, size_t count, loff_t offset) +{ + return -ENOSYS; +} +static inline loff_t lseek(int fildes, loff_t offset, int whence) +{ + return -ENOSYS; +} +static inline int symlink(const char *pathname, const char *newpath) +{ + return -ENOSYS; +} +static inline int readlinkat(int dirfd, const char *path, char *buf, size_t bufsiz) +{ + return -ENOSYS; +} +static inline int chdir(const char *pathname) +{ + return -ENOSYS; +} +static inline char *pushd(const char *dir) +{ + return NULL; +} +static inline int popd(char *dir) +{ + return -ENOSYS; +} +static inline const char *getcwd(void) +{ + return NULL; +} +static inline int ftruncate(int fd, loff_t length) +{ + return -ENOSYS; +} +#endif static inline int unlink(const char *pathname) { -- 2.39.5