Re: [ECOS] hal tables in redboot...

[Jonathan Larmour <jifl at eCosCentric dot com>]

Mathieu Bertrand wrote:
> Hi to all,
>
> I'm currently designing a redboot version in RAM for testing purpose on an
> ixp2400 hardware.
> I've encountered troubles with the use of hal tables defined in main.c as
> follows:
> CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
> CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
>
> CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
> CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
>
> not to mention the netdev tables defined in net_io.c.
> CYG_HAL_TABLE_BEGIN( __NETDEVTAB__, netdev );
> CYG_HAL_TABLE_END( __NETDEVTAB_END__, netdev );
>
> My questions are the following:
> 1. How does it work and how do the RedBoot_cmd and RedBoot_init commands add
> entries in __RedBoot_CMD_TAB__ and __RedBoot_INIT_TAB__ tables respectively
> ?

Using properties of ELF. See hal/common/current/include/hal_tables.h for 
the generated asm directives.

> 2. In my customized version, all these tables seem to be mapped at the same
> address.

That implies they're empty.

Jifl
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