From patchwork Wed Jan 18 23:50:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Filippov X-Patchwork-Id: 18947 Received: (qmail 13850 invoked by alias); 18 Jan 2017 23:51:09 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 13517 invoked by uid 89); 18 Jan 2017 23:51:08 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.9 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, FROM_LOCAL_NOVOWEL, HK_RANDOM_ENVFROM, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=no version=3.3.2 spammy=20276, H*Ad:U*marc, 20278 X-HELO: mail-pg0-f68.google.com Received: from mail-pg0-f68.google.com (HELO mail-pg0-f68.google.com) (74.125.83.68) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 18 Jan 2017 23:51:07 +0000 Received: by mail-pg0-f68.google.com with SMTP id t6so2498278pgt.1 for ; Wed, 18 Jan 2017 15:51:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Y1jDaRq8FBeiJwAQ9EZBdzaIdJl0Vshh9gJDPSyKoxM=; b=JTH/jqMUylcKbrvAI8yad/SQLaXopLXLVsCSyZO6WftsS3gsFFq6JcdflHo8iQTn/c x3yfPIp/Y2W4xjAo/Lp33IzPib0CtkYg9YV4nGWecMosFml4YrJEgijWJRg8SQCz5y2O CAsgByHmj/sCdl0knXTDAdwgXNJfvs/I/vhT8My6J2wTVBRVZKpYg01MCzgzTquJt69y sYGhxM+M5P6HyN1tY4mirNCEnjs+OZLuc4UmxE1rhrXt6BAnlCFk4Q+Mr0NwDVgzEeO4 QQ3q6559rDNqU/hc+Q9W34NrpQTNeHRY+HV7BzKYYgXEjzU+uxpwC75kW3IYoqd4fVgu LwGQ== X-Gm-Message-State: AIkVDXLG/yaW6qW2OwmLJM+ImXYA7eSyHhKDStiBnpfRnirl4weJCQBdXyX4xjGk+7Beaw== X-Received: by 10.99.129.193 with SMTP id t184mr6856144pgd.129.1484783465890; Wed, 18 Jan 2017 15:51:05 -0800 (PST) Received: from octofox.metropolis (corp.Cadence.COM. [158.140.1.28]) by smtp.gmail.com with ESMTPSA id u14sm3320413pfg.18.2017.01.18.15.51.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 18 Jan 2017 15:51:05 -0800 (PST) From: Max Filippov To: gdb-patches@sourceware.org Cc: Maxim Grigoriev , Woody LaRue , Marc Gauthier , Max Filippov Subject: [PATCH 1/3] gdb: xtensa: initialize isa in call0_ret Date: Wed, 18 Jan 2017 15:50:36 -0800 Message-Id: <1484783438-13780-2-git-send-email-jcmvbkbc@gmail.com> In-Reply-To: <1484783438-13780-1-git-send-email-jcmvbkbc@gmail.com> References: <1484783438-13780-1-git-send-email-jcmvbkbc@gmail.com> This fixes segfault in native gdb because isa is not initialized at the point of call to xtensa_isa_maxlength. 2017-01-18 Max Filippov gdb/ * xtensa-tdep.c (call0_ret): Initialize xtensa_default_isa before use. --- gdb/xtensa-tdep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c index 978b13a..797e728 100644 --- a/gdb/xtensa-tdep.c +++ b/gdb/xtensa-tdep.c @@ -2027,6 +2027,8 @@ call0_ret (CORE_ADDR start_pc, CORE_ADDR finish_pc) const char *opcname; int found_ret = 0; + if (!xtensa_default_isa) + xtensa_default_isa = xtensa_isa_init (0, 0); isa = xtensa_default_isa; gdb_assert (XTENSA_ISA_BSZ >= xtensa_isa_maxlength (isa)); ins = xtensa_insnbuf_alloc (isa);