From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gateway32.websitewelcome.com (gateway32.websitewelcome.com [192.185.145.101]) by sourceware.org (Postfix) with ESMTPS id A5C313858415 for ; Thu, 26 Aug 2021 02:19:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A5C313858415 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=tromey.com Received: from cm17.websitewelcome.com (cm17.websitewelcome.com [100.42.49.20]) by gateway32.websitewelcome.com (Postfix) with ESMTP id 569ED988BA7 for ; Wed, 25 Aug 2021 21:19:41 -0500 (CDT) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id J4zVmZ7iEMGeEJ4zVmafYk; Wed, 25 Aug 2021 21:19:41 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=CHjBD35/eYcvKfB+jo7QRjz6lDpYBj+HYbcJoIVEQhw=; b=uw/yxbsURP4ykl4NUe7eCNpM55 xuZPmWK/OCP8njQZqdH0xkQdefuj3dAK3XXlPOKKZfHmB6Tq62VCDgFdTi1JD8p66FjDuash8CiIB mTAv0d/j0AiPFo1ckSv+Tzr5P; Received: from 97-122-86-84.hlrn.qwest.net ([97.122.86.84]:46876 helo=localhost.localdomain) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mJ4zV-003LSg-3J; Wed, 25 Aug 2021 20:19:41 -0600 From: Tom Tromey To: gdb-patches@sourceware.org Cc: Tom Tromey Subject: [PATCH 08/30] Add new overload of dwarf5_djb_hash Date: Wed, 25 Aug 2021 20:19:15 -0600 Message-Id: <20210826021937.1490292-9-tom@tromey.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210826021937.1490292-1-tom@tromey.com> References: <20210826021937.1490292-1-tom@tromey.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.86.84 X-Source-L: No X-Exim-ID: 1mJ4zV-003LSg-3J X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-86-84.hlrn.qwest.net (localhost.localdomain) [97.122.86.84]:46876 X-Source-Auth: tom+tromey.com X-Email-Count: 9 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3030.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, RCVD_IN_SBL_CSS, SPF_HELO_PASS, SPF_NEUTRAL, TXREP, URIBL_CSS_A 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: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Aug 2021 02:20:00 -0000 This adds a new overload of dwarf5_djb_hash. This is used in subsequent patches. --- gdb/dwarf2/index-common.c | 15 +++++++++++++++ gdb/dwarf2/index-common.h | 4 ++++ 2 files changed, 19 insertions(+) diff --git a/gdb/dwarf2/index-common.c b/gdb/dwarf2/index-common.c index 1c02730a3fe..4bad82218c2 100644 --- a/gdb/dwarf2/index-common.c +++ b/gdb/dwarf2/index-common.c @@ -54,3 +54,18 @@ dwarf5_djb_hash (const char *str_) hash = hash * 33 + tolower (c); return hash; } + +/* See dwarf-index-common.h. */ + +uint32_t +dwarf5_djb_hash (gdb::string_view str) +{ + /* Note: tolower here ignores UTF-8, which isn't fully compliant. + See http://dwarfstd.org/ShowIssue.php?issue=161027.1. */ + + uint32_t hash = 5381; + size_t len = str.length (); + for (size_t i = 0; i < len; ++i) + hash = hash * 33 + tolower (str[i] & 0xff); + return hash; +} diff --git a/gdb/dwarf2/index-common.h b/gdb/dwarf2/index-common.h index 86180747533..c800b3a7dea 100644 --- a/gdb/dwarf2/index-common.h +++ b/gdb/dwarf2/index-common.h @@ -52,4 +52,8 @@ hashval_t mapped_index_string_hash (int index_version, const void *p); uint32_t dwarf5_djb_hash (const char *str_); +/* Symbol name hashing function as specified by DWARF-5. */ + +uint32_t dwarf5_djb_hash (gdb::string_view str_); + #endif /* DWARF_INDEX_COMMON_H */ -- 2.31.1