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Thu, 10 Jun 2021 01:59:52 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-164-lTcvCa4oMuiPkuEH-dtx2Q-1; Thu, 10 Jun 2021 01:59:49 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 47463800D62; Thu, 10 Jun 2021 05:59:48 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-113-69.ams2.redhat.com [10.36.113.69]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6C6025D9E2; Thu, 10 Jun 2021 05:59:32 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 040F218017D5; Thu, 10 Jun 2021 07:57:56 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623304790; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=alG6R6cGR+fZFHYt0M7xSOj+2M/4LYU7I+kRHfvTcag=; b=T7sSTCkspkAVgypE4xvtwABrCM2bPbrUN/36IrmjatlEu0SLw4F0cE8hjwDnVhJ3IBVJXv 165hOHhT9FZWUbS0paC7aU8AG0hQ1eGCAg5sjo/stYmydAi77Pa/t0RvDLVfM2j/yucA4B CRDbBOqo4seAKBYfFNJArEXKX1E3b9E= X-MC-Unique: lTcvCa4oMuiPkuEH-dtx2Q-1 From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PATCH v2 13/18] modules: load modinfo.json Date: Thu, 10 Jun 2021 07:57:50 +0200 Message-Id: <20210610055755.538119-14-kraxel@redhat.com> In-Reply-To: <20210610055755.538119-1-kraxel@redhat.com> References: <20210610055755.538119-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.199, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Thomas Huth , berrange@redhat.com, qemu-block@nongnu.org, "Michael S. Tsirkin" , Michael Roth , Cornelia Huck , Peter Lieven , Markus Armbruster , Max Reitz , Halil Pasic , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , qemu-s390x@nongnu.org, Gerd Hoffmann , Ronnie Sahlberg , Samuel Thibault , Paolo Bonzini , David Hildenbrand , Richard Henderson , Eric Blake , Christian Borntraeger Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Load and parse the module info database. Signed-off-by: Gerd Hoffmann --- util/module.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++ util/trace-events | 3 +++ 2 files changed, 57 insertions(+) diff --git a/util/module.c b/util/module.c index 3a2d6dde9734..b0ea8c57d438 100644 --- a/util/module.c +++ b/util/module.c @@ -20,9 +20,16 @@ #include "qemu/queue.h" #include "qemu/module.h" #include "qemu/cutils.h" +#include "qemu/error-report.h" #ifdef CONFIG_MODULE_UPGRADES #include "qemu-version.h" #endif +#include "trace.h" + +#include "qapi/error.h" +#include "qapi/qapi-types-modules.h" +#include "qapi/qapi-visit-modules.h" +#include "qapi/qobject-input-visitor.h" =20 typedef struct ModuleEntry { @@ -111,6 +118,7 @@ void module_call_init(module_init_type type) =20 #ifdef CONFIG_MODULES =20 +static Modules *modinfo; static char *module_dirs[5]; static int module_ndirs; =20 @@ -137,7 +145,52 @@ static void module_load_path_init(void) #endif =20 assert(module_ndirs <=3D ARRAY_SIZE(module_dirs)); +} =20 +static void module_load_modinfo(void) +{ + char *file, *json; + FILE *fp; + int i, size; + Visitor *v; + Error *errp =3D NULL; + + if (modinfo) { + return; + } + + for (i =3D 0; i < module_ndirs; i++) { + file =3D g_strdup_printf("%s/modinfo.json", module_dirs[i]); + fp =3D fopen(file, "r"); + if (fp !=3D NULL) { + break; + } + g_free(file); + } + if (NULL =3D=3D fp) { + warn_report("No modinfo.json file found."); + return; + } else { + trace_module_load_modinfo(file); + } + + fseek(fp, 0, SEEK_END); + size =3D ftell(fp); + fseek(fp, 0, SEEK_SET); + json =3D g_malloc0(size + 1); + fread(json, size, 1, fp); + json[size] =3D 0; + fclose(fp); + + v =3D qobject_input_visitor_new_str(json, NULL, &errp); + if (errp) { + error_reportf_err(errp, "parse error (%s)", file); + g_free(file); + return; + } + visit_type_Modules(v, NULL, &modinfo, &errp); + visit_free(v); + g_free(file); } =20 static int module_load_file(const char *fname, bool mayfail, bool export_s= ymbols) @@ -269,6 +322,7 @@ bool module_load_one(const char *prefix, const char *li= b_name, bool mayfail) g_hash_table_add(loaded_modules, module_name); =20 module_load_path_init(); + module_load_modinfo(); =20 for (i =3D 0; i < module_ndirs; i++) { fname =3D g_strdup_printf("%s/%s%s", diff --git a/util/trace-events b/util/trace-events index 806cac14a762..8b2afcbd109a 100644 --- a/util/trace-events +++ b/util/trace-events @@ -100,3 +100,6 @@ uffd_create_fd_api_failed(int err) "errno: %i" uffd_create_fd_api_noioctl(uint64_t ioctl_req, uint64_t ioctl_supp) "ioctl= _req: 0x%" PRIx64 "ioctl_supp: 0x%" PRIx64 uffd_register_memory_failed(void *addr, uint64_t length, uint64_t mode, in= t err) "addr: %p length: %" PRIu64 " mode: 0x%" PRIx64 " errno: %i" uffd_unregister_memory_failed(void *addr, uint64_t length, int err) "addr:= %p length: %" PRIu64 " errno: %i" + +# module.c +module_load_modinfo(const char *filename) "modinfo %s" --=20 2.31.1