From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 14.mo1.mail-out.ovh.net ([178.32.97.215] helo=mo1.mail-out.ovh.net) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1StAD3-00084r-AR for barebox@lists.infradead.org; Mon, 23 Jul 2012 04:25:30 +0000 Received: from mail94.ha.ovh.net (b7.ovh.net [213.186.33.57]) by mo1.mail-out.ovh.net (Postfix) with SMTP id 06625FF92A2 for ; Mon, 23 Jul 2012 06:31:09 +0200 (CEST) From: Jean-Christophe PLAGNIOL-VILLARD Date: Mon, 23 Jul 2012 06:26:01 +0200 Message-Id: <1343017563-27932-5-git-send-email-plagnioj@jcrosoft.com> In-Reply-To: <1343017563-27932-1-git-send-email-plagnioj@jcrosoft.com> References: <20120723042052.GK22657@game.jcrosoft.org> <1343017563-27932-1-git-send-email-plagnioj@jcrosoft.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 5/7] ARM: add early malloc support needed by the decompressor To: barebox@lists.infradead.org This is not needed by lzo but by gunzip, xz and others. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/cpu/start.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c index 18c5c83..8ab6fdc 100644 --- a/arch/arm/cpu/start.c +++ b/arch/arm/cpu/start.c @@ -28,6 +28,9 @@ #include #include +unsigned long free_mem_ptr; +unsigned long free_mem_end_ptr; + #ifdef CONFIG_IMAGE_COMPRESSION void __naked __section(.text_head_entry) compressed_start(void) { @@ -158,6 +161,10 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void) /* clear bss */ memset(__bss_start, 0, __bss_stop - __bss_start); + /* set 128 KiB before the STACK_BASE - 16 address for early malloc */ + free_mem_ptr = STACK_BASE - 0x20000 - 16; + free_mem_end_ptr = STACK_BASE - 16; + /* flush I-cache before jumping to the copied binary */ __asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); -- 1.7.10 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox