On 13.02.2009 01:27, ron minnich wrote:
On Thu, Feb 12, 2009 at 2:49 PM, Ronald Hoogenboom ronald@zonnet.nl wrote:
[coreboot-v3]$ objdump -t build/stage0-prefixed.o | awk '/.c$/{print $6}' | sort -u stage0_clog2.c stage0_console.c stage0_delay.c
almost certainly.
stage0_dualcore_id.c stage0_get_nodes.c stage0_incoherent_ht_chain.c
probably.
stage0_lar.c stage0_libstage1.c stage0_lzma.c stage0_mc146818rtc.c stage0_mem.c stage0_option_table.c stage0_pci_ops_conf1.c
yes
stage0_pnp_raw.c stage0_post_code.c stage0_resourcemap.c stage0_serial.c
I think so.
stage0_stage1.c stage0_stage1_enable_rom.c stage0_stage1_mtrr.c stage0_stage1_smbus.c stage0_string.c stage0_uart8250.c stage0_udelay_io.c stage0_vsprintf.c stage0_vtxprintf.c
Is ALL this stuff actually needed in stage0???
You can look some more, but this stuff may be hard to remove. I tried.
If you don't need backtraces or similar stuff, you can try to enable combined compilation. Depending on your compiler and the selected coreboot features, saving up to 20% executable size may be possible.
(I'm not sure whether all of my combined compilation patches were merged, so your results may vary.)
Regards, Carl-Daniel