Re: [PATCH v2 1/8] imx-image: Correctly fill image size in prepended header

[Marc Kleine-Budde <mkl@pengutronix.de>]

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On 05/03/2015 11:55 PM, Andrey Smirnov wrote:
> If called with '-b' option 'imx-image' tool prepends barebox header to
> the image, but the tool does not fill the data at image size offset
> correctly. Fix that.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
> ---
> 
> This patch supercedes the one sent earlier titled:
>  "[PATCH 1/8] Makefile.lib: Fix i.MX image size after generation"
> 
>  scripts/imx/Makefile    |  2 ++
>  scripts/imx/imx-image.c | 12 ++++++++++--
>  2 files changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/scripts/imx/Makefile b/scripts/imx/Makefile
> index be0b490..ee0acc1 100644
> --- a/scripts/imx/Makefile
> +++ b/scripts/imx/Makefile
> @@ -6,5 +6,7 @@ always          := $(hostprogs-y)
>  HOSTCFLAGS_imx-usb-loader.o = `pkg-config --cflags libusb-1.0`
>  HOSTLOADLIBES_imx-usb-loader  = `pkg-config --libs libusb-1.0`
> 
> +HOSTCFLAGS_imx-image.o = -I$(srctree)
> +
>  imx-usb-loader-objs := imx-usb-loader.o
>  imx-image-objs := imx-image.o
> diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
> index 25ea4d8..c0181df 100644
> --- a/scripts/imx/imx-image.c
> +++ b/scripts/imx/imx-image.c
> @@ -27,6 +27,8 @@
>  #include <fcntl.h>
>  #include <endian.h>
> 
> +#include <include/filetype.h>
> +
>  #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
>  #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
>  #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
> @@ -92,8 +94,11 @@ static int add_header_v1(void *buf, int offset, uint32_t loadaddr, uint32_t imag
>  	struct imx_flash_header *hdr;
>  	int dcdsize = curdcd * sizeof(uint32_t);
> 
> -	if (add_barebox_header)
> +	if (add_barebox_header) {
> +		uint32_t *psize = buf + ARM_HEAD_SIZE_OFFSET;
>  		memcpy(buf, bb_header, sizeof(bb_header));
> +		*psize = imagesize;
> +	}
> 
>  	buf += offset;
>  	hdr = buf;
> @@ -178,8 +183,11 @@ static int add_header_v2(void *buf, int offset, uint32_t loadaddr, uint32_t imag
>  	struct imx_flash_header_v2 *hdr;
>  	int dcdsize = curdcd * sizeof(uint32_t);
> 
> -	if (add_barebox_header)
> +	if (add_barebox_header) {
> +		uint32_t *psize = buf + ARM_HEAD_SIZE_OFFSET;
>  		memcpy(buf, bb_header, sizeof(bb_header));
> +		*psize = imagesize;
> +	}

In the HAB case, the resulting image will be CSF_LEN bytes bigger, see:
"if (prepare_sign)" below. (A signature + padding will be appended to
the barebox image.)

What does the size in the barebox header mean exactly?

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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