From patchwork Thu Mar 31 11:35:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Huber X-Patchwork-Id: 52505 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 5DC05389A103 for ; Thu, 31 Mar 2022 11:37:37 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) by sourceware.org (Postfix) with ESMTPS id EC61E3839808 for ; Thu, 31 Mar 2022 11:35:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org EC61E3839808 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=embedded-brains.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=embedded-brains.de Received: from sslproxy01.your-server.de ([78.46.139.224]) by dedi548.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nZt5K-000OPw-S2; Thu, 31 Mar 2022 13:35:26 +0200 Received: from [82.100.198.138] (helo=mail.embedded-brains.de) by sslproxy01.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nZt5F-000FlL-Ow; Thu, 31 Mar 2022 13:35:21 +0200 Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 6C0B3480120; Thu, 31 Mar 2022 13:35:21 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 6JQOzt7SGSNm; Thu, 31 Mar 2022 13:35:21 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 02BE748010F; Thu, 31 Mar 2022 13:35:21 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id JGj9vnNejsFh; Thu, 31 Mar 2022 13:35:20 +0200 (CEST) Received: from zimbra.eb.localhost (unknown [192.168.96.242]) by mail.embedded-brains.de (Postfix) with ESMTPSA id CFE1048010D; Thu, 31 Mar 2022 13:35:20 +0200 (CEST) From: Sebastian Huber To: gcc-patches@gcc.gnu.org Subject: [RFC/gcov 06/12] gcov-tool: Support file input from stdin Date: Thu, 31 Mar 2022 13:35:09 +0200 Message-Id: <20220331113515.35764-7-sebastian.huber@embedded-brains.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220331113515.35764-1-sebastian.huber@embedded-brains.de> References: <20220331113515.35764-1-sebastian.huber@embedded-brains.de> MIME-Version: 1.0 X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.103.5/26498/Thu Mar 31 10:19:05 2022) X-Spam-Status: No, score=-11.1 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" gcc/ * gcov-io.cc (GCOV_MODE_STDIN): Define. (gcov_position): For gcov-tool, return calculated position if file is stdin. (gcov_open): For gcov-tool, use stdin if filename is NULL. (gcov_close): For gcov-tool, do not close stdin. (gcov_read_bytes): For gcov-tool, update position if file is stdin. (gcov_sync): For gcov-tool, discard input if file is stdin. --- gcc/gcov-io.cc | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/gcc/gcov-io.cc b/gcc/gcov-io.cc index fee3130f94a..177f81166a6 100644 --- a/gcc/gcov-io.cc +++ b/gcc/gcov-io.cc @@ -35,8 +35,13 @@ struct gcov_var int error; /* < 0 overflow, > 0 disk error. */ int mode; /* < 0 writing, > 0 reading. */ int endian; /* Swap endianness. */ +#ifdef IN_GCOV_TOOL + gcov_position_t pos; /* File position for stdin support. */ +#endif } gcov_var; +#define GCOV_MODE_STDIN 2 + /* Save the current position in the gcov file. */ /* We need to expose this function when compiling for gcov-tool. */ #ifndef IN_GCOV_TOOL @@ -45,6 +50,10 @@ static inline gcov_position_t gcov_position (void) { +#ifdef IN_GCOV_TOOL + if (gcov_var.mode == GCOV_MODE_STDIN) + return gcov_var.pos; +#endif return ftell (gcov_var.file); } @@ -108,6 +117,16 @@ gcov_open (const char *name, int mode) #if !IN_LIBGCOV || defined (IN_GCOV_TOOL) gcov_var.endian = 0; #endif +#ifdef IN_GCOV_TOOL + gcov_var.pos = 0; + if (!name) + { + gcov_nonruntime_assert (gcov_var.mode > 0); + gcov_var.file = stdin; + gcov_var.mode = GCOV_MODE_STDIN; + return 1; + } +#endif #if GCOV_LOCKED if (mode > 0) { @@ -190,6 +209,11 @@ gcov_open (const char *name, int mode) GCOV_LINKAGE int gcov_close (void) { +#ifdef IN_GCOV_TOOL + if (gcov_var.file == stdin) + gcov_var.file = 0; + else +#endif if (gcov_var.file) { if (fclose (gcov_var.file)) @@ -363,6 +387,9 @@ gcov_read_bytes (void *buffer, unsigned count) if (read != 1) return NULL; +#ifdef IN_GCOV_TOOL + gcov_var.pos += count; +#endif return buffer; } @@ -499,6 +526,17 @@ gcov_sync (gcov_position_t base, gcov_unsigned_t length) { gcov_nonruntime_assert (gcov_var.mode > 0); base += length; +#ifdef IN_GCOV_TOOL + if (gcov_var.mode == GCOV_MODE_STDIN) + { + while (gcov_var.pos < base) + { + ++gcov_var.pos; + (void)fgetc(gcov_var.file); + } + return; + } +#endif fseek (gcov_var.file, base, SEEK_SET); } #endif