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[209.51.188.17]) by mx.google.com with ESMTPS id g14si11685472ilf.0.2021.03.08.06.02.00 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 08 Mar 2021 06:02:00 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=fail header.i=@linaro.org header.s=google header.b=jG+Ocu+p; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:42496 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lJGSN-0003W9-QG for patch@linaro.org; Mon, 08 Mar 2021 09:01:59 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55156) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lJGO5-0007H6-0w for qemu-devel@nongnu.org; Mon, 08 Mar 2021 08:57:33 -0500 Received: from mail-wm1-x333.google.com ([2a00:1450:4864:20::333]:46896) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lJGO3-0003uw-4m for qemu-devel@nongnu.org; Mon, 08 Mar 2021 08:57:32 -0500 Received: by mail-wm1-x333.google.com with SMTP id d139-20020a1c1d910000b029010b895cb6f2so3859256wmd.5 for ; Mon, 08 Mar 2021 05:57:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qdRJRL3+3BE/JH14YpiGu383dDrAlP7VpAQihL8OqOE=; b=jG+Ocu+pvktYB4XAD03JfHf645e595o4p1nYB4PsmZGQpJ9zsozfOikfy7Qeieq4Y+ Q4xnlskGVQ4g4Ift9Ak7uDfXqbSX9nfmLXoo3d3EDTrGH8j9DZ072zYQbE3RFoyU0ljA lricDeaQwrkgeERXq79kZ04+qS9OGmtT9cDbcTDiZw7pob0KNB47vqUhT4YLP+QGoeHu j4bi58loqf1POne+kc4MVoIm+xiEwwEeG3o+FCtS3nvs6BC0XPTaInSRhI00fSRlgNc9 Fvn6He6ipHGSZYAXGHWLlo8tFrpQThyNUGaSUmGUGgcGRyOTm9+ZjGiNoEMALQYjd/Ya 6MCQ== 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:mime-version:content-transfer-encoding; bh=qdRJRL3+3BE/JH14YpiGu383dDrAlP7VpAQihL8OqOE=; b=r/XAThMLxJuGK1Pb1Fx+p+1D38fC9ojjAum2wVV/5kYplVvwHsJBLDSNlnNqxWR0vo spzeaTRI5Ui3tI4AbsrkYmEVN+DNlvX+KsC6Qyh+fCiH9MEkGdAVtg3HBigJkZ0RGvPY 3hZu12gkSYy/LEpaZoMJXVySXn4mFb8I2YwBdI8EaKA9BPCJeyDHzgmTVf1ca9oJs9to MwMwuBX5jxCZIPVhftLWhMO8DnQ9c5RlLBYyS0ivbtHOgXqhbtQuoBrk23a1j54Q3OgO CrzHgcl1Is7W5vWcYtf6eBzfD306C3rfbf+d6GPPXWvGKbr8QdXQPvB4MOdgzYEl5sIE Lq7A== X-Gm-Message-State: AOAM531zgY3IfXRTlfmWaM+mneVcOpxrWOZBWgdFI8Luag2tfeGRw38p cLAgmpX1hY3o9vuBjiuqC5CWMg== X-Received: by 2002:a1c:7714:: with SMTP id t20mr21838401wmi.107.1615211849713; Mon, 08 Mar 2021 05:57:29 -0800 (PST) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id k11sm19444723wmj.1.2021.03.08.05.57.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Mar 2021 05:57:28 -0800 (PST) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id ED12A1FF9B; Mon, 8 Mar 2021 13:51:05 +0000 (GMT) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: peter.maydell@linaro.org Subject: [PULL 12/18] device_tree: add qemu_fdt_setprop_string_array helper Date: Mon, 8 Mar 2021 13:50:58 +0000 Message-Id: <20210308135104.24903-13-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210308135104.24903-1-alex.bennee@linaro.org> References: <20210308135104.24903-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x333.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: Alistair Francis , =?utf-8?q?Alex_Benn=C3=A9?= =?utf-8?q?e?= , qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" A string array in device tree is simply a series of \0 terminated strings next to each other. As libfdt doesn't support that directly we need to build it ourselves. Signed-off-by: Alex Bennée Reviewed-by: Alistair Francis Message-Id: <20210303173642.3805-4-alex.bennee@linaro.org> -- 2.20.1 diff --git a/include/sysemu/device_tree.h b/include/sysemu/device_tree.h index 982c89345f..8a2fe55622 100644 --- a/include/sysemu/device_tree.h +++ b/include/sysemu/device_tree.h @@ -70,6 +70,23 @@ int qemu_fdt_setprop_u64(void *fdt, const char *node_path, const char *property, uint64_t val); int qemu_fdt_setprop_string(void *fdt, const char *node_path, const char *property, const char *string); + +/** + * qemu_fdt_setprop_string_array: set a string array property + * + * @fdt: pointer to the dt blob + * @name: node name + * @prop: property array + * @array: pointer to an array of string pointers + * @len: length of array + * + * assigns a string array to a property. This function converts and + * array of strings to a sequential string with \0 separators before + * setting the property. + */ +int qemu_fdt_setprop_string_array(void *fdt, const char *node_path, + const char *prop, char **array, int len); + int qemu_fdt_setprop_phandle(void *fdt, const char *node_path, const char *property, const char *target_node_path); diff --git a/softmmu/device_tree.c b/softmmu/device_tree.c index b9a3ddc518..2691c58cf6 100644 --- a/softmmu/device_tree.c +++ b/softmmu/device_tree.c @@ -21,6 +21,7 @@ #include "qemu/error-report.h" #include "qemu/option.h" #include "qemu/bswap.h" +#include "qemu/cutils.h" #include "sysemu/device_tree.h" #include "sysemu/sysemu.h" #include "hw/loader.h" @@ -397,6 +398,31 @@ int qemu_fdt_setprop_string(void *fdt, const char *node_path, return r; } +/* + * libfdt doesn't allow us to add string arrays directly but they are + * test a series of null terminated strings with a length. We build + * the string up here so we can calculate the final length. + */ +int qemu_fdt_setprop_string_array(void *fdt, const char *node_path, + const char *prop, char **array, int len) +{ + int ret, i, total_len = 0; + char *str, *p; + for (i = 0; i < len; i++) { + total_len += strlen(array[i]) + 1; + } + p = str = g_malloc0(total_len); + for (i = 0; i < len; i++) { + int len = strlen(array[i]) + 1; + pstrcpy(p, len, array[i]); + p += len; + } + + ret = qemu_fdt_setprop(fdt, node_path, prop, str, total_len); + g_free(str); + return ret; +} + const void *qemu_fdt_getprop(void *fdt, const char *node_path, const char *property, int *lenp, Error **errp) {