I can figure out the size of the modules, but I can not find any way to figure out the size of the kernel. A mail on this list a bit back said that the _end symbol could be used; however, I could not find any documentation of any such symbol by any name in the documentation of gcc, ld, or 2 ELF specs that I looked at. An objdump -t of my kernel reveals that there is no _end symbol. Is it possible at all to obtain the size of the kernel? If not, could this functionality be added? It would obviously be trivial since grub had to figure this information out in order to load the kernel.
Also, I am unable to find the exact meaning of the mem_lower and mem_upper members of the multiboot info passed to the kernel in EBX. On a four meg system, 639KB lower and 3072KB of upper is reported. 3072+639=3711, 3.62MB. Where did the other 385KB go? Also, I have yet to see a system that did not have either 640KB or 512KB of lower RAM. While this could be a defective BIOS, I highly doubt it. Do these memory numbers indicate unused RAM, after the loading of modules, excluding the IDT, BIOS data areas, and all else? Or, do they specify something else? Note: I'm not subscribed to the list, so please CC replies to me. Thanks, Phil Frost _______________________________________________ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
