From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 25 Nov 2024 16:13:09 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFalx-000FY8-05 for lore@lore.pengutronix.de; Mon, 25 Nov 2024 16:13:09 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFalv-0007kB-S8 for lore@pengutronix.de; Mon, 25 Nov 2024 16:13:09 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6jj9pV3gOEO/XoxG8TqLM6icMzx+5SnTzFiunaZzdVk=; b=mEKowIHVVnah4JV9lZrZ9OvKJz MCQwogQgLawRebvrfUXkHjTwDvxmRpP+XawtA5ke68cpENJKqSfxbh5e88PFyIAFnAXsYaImHVHTm tGtEqyQ52TZIH3Z5lyGRyrKSenfffDlXA9+SC9p3HWN//iaNV1xwNtzOIxVTr4WpkAK8SHEtnkYcJ 4HNscI90qtPIyhoQNlc4VYsRotuJAP07BdBc9B+e+8COn5HZ24OgVCAcepAgTXSjOY7Zd7RpBEe4i q98DxfLiWg3teTYCC5fz8YvvLgKxefe7itJVFXunXz0Kd6kH0JHLmp2IJMaS19DbiwUzkelmqSRCu CjOYhZXQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFalQ-00000008Pg3-32jo; Mon, 25 Nov 2024 15:12:36 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tFalM-00000008Pb7-1gZq for barebox@lists.infradead.org; Mon, 25 Nov 2024 15:12:34 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFalL-0007CZ-4H; Mon, 25 Nov 2024 16:12:31 +0100 Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFalK-0006Md-0T; Mon, 25 Nov 2024 16:12:30 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1tFalK-001lGb-0g; Mon, 25 Nov 2024 16:12:30 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Mon, 25 Nov 2024 16:12:17 +0100 Message-Id: <20241125151228.341441-6-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241125151228.341441-1-a.fatoum@pengutronix.de> References: <20241125151228.341441-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241125_071232_447448_701753A9 X-CRM114-Status: GOOD ( 12.04 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 05/16] lib: random: add stubs for PBL X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) To optimize out calls to undefined functions in PBL at compile-time instead of link time, let's define stubs for the functions that are referenced in obj-pbl-y files, but inside function sections that are ultimately unreferenced. We don't use IS_PROPER here as we want to fail the build in barebox proper as before, when HWRNG support is missing. Signed-off-by: Ahmad Fatoum --- include/stdlib.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/include/stdlib.h b/include/stdlib.h index c427cbc87f6e..20bdc0491e3c 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -2,6 +2,7 @@ #ifndef __STDLIB_H #define __STDLIB_H +#include #include #include @@ -13,11 +14,27 @@ unsigned int rand(void); /* set the seed for rand () */ void srand(unsigned int seed); +struct hwrng; + /* fill a buffer with pseudo-random data */ +#if IN_PROPER void get_random_bytes(void *buf, int len); int get_crypto_bytes(void *buf, int len); -struct hwrng; int hwrng_get_crypto_bytes(struct hwrng *rng, void *buf, int len); +#else +static inline void get_random_bytes(void *buf, int len) +{ + BUG(); +} +static inline int get_crypto_bytes(void *buf, int len) +{ + return -ENOSYS; +} +static inline int hwrng_get_crypto_bytes(struct hwrng *rng, void *buf, int len) +{ + return -ENOSYS; +} +#endif static inline u32 random32(void) { -- 2.39.5