From: Sascha Hauer <s.hauer@pengutronix.de>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 10/12] ARM: add early malloc support needed by the decompressor
Date: Mon, 30 Jul 2012 10:02:27 +0200 [thread overview]
Message-ID: <20120730080227.GK30009@pengutronix.de> (raw)
In-Reply-To: <1343413990-31891-10-git-send-email-plagnioj@jcrosoft.com>
On Fri, Jul 27, 2012 at 08:33:08PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> This is not needed by lzo but by gunzip, xz and others.
>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> ---
> 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 a54f5fd..f500ca8 100644
> --- a/arch/arm/cpu/start.c
> +++ b/arch/arm/cpu/start.c
> @@ -28,6 +28,9 @@
> #include <asm-generic/memory_layout.h>
> #include <asm/sections.h>
>
> +unsigned long free_mem_ptr;
> +unsigned long free_mem_end_ptr;
> +
> #ifdef CONFIG_PBL_IMAGE
> void __naked __section(.text_head_entry) pbl_start(void)
> {
> @@ -193,6 +196,10 @@ 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;
> +
This assumes that the malloc area is directly before the stack. How
about using __bss_stop or _end instead?
Sascha
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next prev parent reply other threads:[~2012-07-30 8:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-27 18:31 [PATCH 00/12] Add Pre-Bootloader support Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:32 ` [PATCH 01/12] kbuild: Init all relevant variables used in kbuild files so Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 02/12] kbuild: add pre-bootloader (pbl) target Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 03/12] Add pre-bootloader (pbl) image support Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 04/12] pbl: discard unwind symbol if enable in barebox Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 05/12] Add compressed image support Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 06/12] only compress default env in uncompressed images Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 07/12] ARM: Separate assembler functions into their own section Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 7:50 ` Sascha Hauer
2012-07-30 8:27 ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 08/12] decompress_unlzo: define decompress_unlzo as decompress Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 7:56 ` Sascha Hauer
2012-07-30 8:06 ` Sascha Hauer
2012-07-27 18:33 ` [PATCH 09/12] decompressor: import malloc/free implementation for linux 3.4 Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 10/12] ARM: add early malloc support needed by the decompressor Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 8:02 ` Sascha Hauer [this message]
2012-07-30 8:19 ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 8:30 ` Sascha Hauer
2012-07-30 8:49 ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 8:59 ` Sascha Hauer
2012-07-30 9:04 ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 9:20 ` Sascha Hauer
2012-07-30 9:30 ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 11/12] compressed image: add gzip support Jean-Christophe PLAGNIOL-VILLARD
2012-07-27 18:33 ` [PATCH 12/12] at91: add lowlevel init to the pbl Jean-Christophe PLAGNIOL-VILLARD
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