Le 31/10/2010 19:35, Darius Augulis a écrit :
But it's strange, because I done the same test of declaring variable in start.s:
..globl cmd_start cmd_start: .word __u_boot_cmd_start
Then disassembled elf shows it's value:
57e00048<cmd_start>: 57e00048: 00000000 .word 0x00000000
Indeed. :)
That's why, for instance, the _rel_dyn_start_ofs literal is defined as
.word _rel_dyn_start - _start
... rather than simply as
.word _rel_dyn start
... because the latter always produces 0 (it expects it to be fixed up by the relocation code, which causes a catch-22) while the former produces the expected difference which can then be fixed.
Commands are there and somehow working, but at least it's very strange.
Yes, it baffled me too. :)
Amicalement,