From patchwork Thu Mar 7 10:21:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiko Odaki X-Patchwork-Id: 13585339 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C9610C48BF6 for ; Thu, 7 Mar 2024 10:22:07 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riAsw-0005dJ-A9; Thu, 07 Mar 2024 05:21:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1riAsp-0005WB-Vb for qemu-devel@nongnu.org; Thu, 07 Mar 2024 05:21:52 -0500 Received: from mail-oi1-x22a.google.com ([2607:f8b0:4864:20::22a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1riAso-0007F5-Dp for qemu-devel@nongnu.org; Thu, 07 Mar 2024 05:21:51 -0500 Received: by mail-oi1-x22a.google.com with SMTP id 5614622812f47-3bd72353d9fso307265b6e.3 for ; Thu, 07 Mar 2024 02:21:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1709806909; x=1710411709; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=SWv/n6ZKj2r4AuXL4UqGI23kMpuzOnRejuu9Q3uLHrw=; b=1/Qkl/BSvuZ6Pe3LVvtuswGUfBtm7SsFOUeu8q4a2/hmrZyqrPf83Yce+6tiziCs1Z MX8QreJRjSHCheIMIUNYPZOQ7YRSpKRIGccBfUOqcT4SFUvCgGQA7849dFjKqPszT2vQ nKcPShyWvF+XwJpN1zgTn7FhDKTGb5YK/mbca3luGdM2maRvYmAWvZtitT0Mzod8e+bG CZ1BUiphKfr5R5ltj0Sbc12Zv9j3wOr45Bb9g4xCzJbsUywxIIKcbvXYjpR0MoXfQJxi V9B1eVJjQkHKPByE8uWjMt4ObMRdTLuMSgZuF7NJZxMf4z6bLNuPPsprXNbBEIPrPG8n +L5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709806909; x=1710411709; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=SWv/n6ZKj2r4AuXL4UqGI23kMpuzOnRejuu9Q3uLHrw=; b=WWE6mut/BExNniJ2LHmQHuW4CBZB9aXyhO95NEyLiVrSWaYtxBHt6UNZUOIoG35hnY 5VNmDL+VXLkPOJOJ0Ux+QsNBmPwaMd7yZPXK3w1Fbt2bUbZzs7TIqx9aeWVJmF7OF/hT zGTAdNe7+z1uhX7yY0G3vfAqvxOtF0445oVvWW4x08iLGif76SDauJChqdo5ZppbeG9b oIqOdaNDgP4js0CbRWQH7+9dPDxfqLOFWHHEOLLGlAIOKbcPFLjMH/+PTyRxMmpJxfZ0 tdsT0UMvb1QSI103nGCVOeBfsQJNSMHp/M2XrXLeF321wyqg6qavOwzbs93GqPxg7/XJ pcPg== X-Gm-Message-State: AOJu0YyaA8CwGnWgnhB2frDql62ufe4ScBUILiBMtwJuBQ3QaZZCABL5 /DkDTooMwofGC8otzHaqvm3VIwj4xS1XWlZM3Sr11ro7HJd5HSZBkQ9JbrtfCnJQBVokuDQg33M K X-Google-Smtp-Source: AGHT+IGwXSPAhhT9Q4vOFxyGynKFUYnnavYEGXAQmIVBHM/YfXvH1OF/25PjupTjV2WjuH/DqXkvgQ== X-Received: by 2002:a05:6870:a70a:b0:21e:5a2b:58ac with SMTP id g10-20020a056870a70a00b0021e5a2b58acmr7672016oam.15.1709806909126; Thu, 07 Mar 2024 02:21:49 -0800 (PST) Received: from localhost ([2400:4050:a840:1e00:9ac7:6d57:2b16:6932]) by smtp.gmail.com with UTF8SMTPSA id r11-20020a63ec4b000000b005d880b41598sm12186644pgj.94.2024.03.07.02.21.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Mar 2024 02:21:48 -0800 (PST) From: Akihiko Odaki Date: Thu, 07 Mar 2024 19:21:00 +0900 Subject: [PATCH v4 17/19] contrib/elf2dmp: Use GPtrArray MIME-Version: 1.0 Message-Id: <20240307-elf2dmp-v4-17-4f324ad4d99d@daynix.com> References: <20240307-elf2dmp-v4-0-4f324ad4d99d@daynix.com> In-Reply-To: <20240307-elf2dmp-v4-0-4f324ad4d99d@daynix.com> To: Viktor Prutyanov , Peter Maydell Cc: qemu-devel@nongnu.org, Akihiko Odaki X-Mailer: b4 0.12.3 Received-SPF: none client-ip=2607:f8b0:4864:20::22a; envelope-from=akihiko.odaki@daynix.com; helo=mail-oi1-x22a.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This removes the need to enumarate QEMUCPUState twice and saves code. Signed-off-by: Akihiko Odaki Reviewed-by: Peter Maydell --- contrib/elf2dmp/qemu_elf.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) diff --git a/contrib/elf2dmp/qemu_elf.c b/contrib/elf2dmp/qemu_elf.c index a22c057d3ec3..7d896cac5b15 100644 --- a/contrib/elf2dmp/qemu_elf.c +++ b/contrib/elf2dmp/qemu_elf.c @@ -66,7 +66,7 @@ static bool init_states(QEMU_Elf *qe) Elf64_Nhdr *start = (void *)((uint8_t *)qe->map + phdr[0].p_offset); Elf64_Nhdr *end = (void *)((uint8_t *)start + phdr[0].p_memsz); Elf64_Nhdr *nhdr; - size_t cpu_nr = 0; + GPtrArray *states; if (phdr[0].p_type != PT_NOTE) { eprintf("Failed to find PT_NOTE\n"); @@ -74,38 +74,29 @@ static bool init_states(QEMU_Elf *qe) } qe->has_kernel_gs_base = 1; + states = g_ptr_array_new(); for (nhdr = start; nhdr < end; nhdr = nhdr_get_next(nhdr)) { if (!strcmp(nhdr_get_name(nhdr), QEMU_NOTE_NAME)) { QEMUCPUState *state = nhdr_get_desc(nhdr); if (state->size < sizeof(*state)) { - eprintf("CPU #%zu: QEMU CPU state size %u doesn't match\n", - cpu_nr, state->size); + eprintf("CPU #%u: QEMU CPU state size %u doesn't match\n", + states->len, state->size); /* * We assume either every QEMU CPU state has KERNEL_GS_BASE or * no one has. */ qe->has_kernel_gs_base = 0; } - cpu_nr++; + g_ptr_array_add(states, state); } } - printf("%zu CPU states has been found\n", cpu_nr); + printf("%u CPU states has been found\n", states->len); - qe->state = g_new(QEMUCPUState*, cpu_nr); - - cpu_nr = 0; - - for (nhdr = start; nhdr < end; nhdr = nhdr_get_next(nhdr)) { - if (!strcmp(nhdr_get_name(nhdr), QEMU_NOTE_NAME)) { - qe->state[cpu_nr] = nhdr_get_desc(nhdr); - cpu_nr++; - } - } - - qe->state_nr = cpu_nr; + qe->state_nr = states->len; + qe->state = (void *)g_ptr_array_free(states, FALSE); return true; }