Hey u-boot list:
I've attached a patch for adding function to the exports table for your review.
In exports.c, I added a function called xf_func_inc(int) which can be called from an external program and used to determine which functions were compiled with u-boot and available. (this is done by making sure that the jump table entry does not point to the dummy function) For example, if u-boot is compiled without NAND support, a stand alone program can find out before calling the do_nand function. This seemed to be the simplest way to implement this functionality, but if anyone has a better idea, I'll look into it.
Also in exports.c, I reordered the "gd->jt[XF_xxxx] = (void *) xxxx;" entries to be grouped into a more logical grouping order so that the #if statements were together.
In _exports.h, I added my new functions below existing functions so that the enumerated name and number (XF_xxxx) that get assigned to the existing functions would not change. Also, I removed the #if... Statements so that the enumerated numbers assigned never change when u-boot is compiled with different configurations and options enabled.
In exports.h Function declarations were added and the XF_VERSION was incremented to 4.
netboot_common was changed from static to extern.
If there are no discussions about this, then Wolfgang and Stefan please add it to the tree.
-Jeffrey Mann
PATCH * Add functions to the exports table for use by external programs. Added xf_func_inc(int) for stand alone programs to confirm that functions are in u-boot. -sign-off-by Jeffrey Mann mannj@embeddedplanet.com