> On Thu, 2004-10-28 at 16:03, [EMAIL PROTECTED] wrote: > > > > It seems that LinuxBIOS copies itself to _RAMBASE, which is 0x4000. > > Then it branches to 0x4000 into _start, which sets up the stack and > > calls hardwaremain. The address of hardwaremain from linuxbios_c.o is > > wrong. The address is not the Flash address and it's not the RAM > > address. Can someone explain how linuxbios_c.o is linked with RAM > > addresses? > > > > What do you mean ? In the S2885 I built, the _RAMBASE is 0x4000 and > hardwaremain is 0x5fe0 as you can get from the linuxbios_c.map. They > are both in RAM. If you use "objdump -drS linuxbios_c.o" you will > find the hardwaremain is at offset 0x1fe0 from the _RAMBASSE. > > BTW, if you specify the -g option for gcc, you can use the -S option > in objdump to see the source code with the disassebmly (-d). > > Ollie
In the amd/serenade I built, the _RAMBASE is 0x4000 and hardwaremain is at 0x60B8 from the linuxbios_c.map. Hardwaremain is at 0x20B8 in the objdump. That all make sense. But if I step through the execution of _start from 0x4000 to the call to hardwaremain. I see it branch to 0x5F70 and the instructions at 0x5F70 match the hardwaremain in objdump. So I think it's really at 0x5F70 not 0x60B8. It's only off by 0x148 bytes. I bet your hardwaremain isn't at 0x5FE0. Steve _______________________________________________ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
