gcc -fwhole-program needs to mark any function which is used outside the

current compilation unit to be marked as externally_visible. We have
EXPORT_SYMBOL exactly for that purpose.

This applies to the following symbols used by x86emu and/or vm86:
- pci_read_config8
- pci_read_config16
- pci_read_config32
- pci_write_config8
- pci_write_config16
- pci_write_config32
- dev_find_pci_device
- dev_find_slot
It also applies to the main entry point of stage2:
- stage2

With this patch, I can use -fwhole-program for stage2 without any
problems. For standard compilation, this is a noop.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@827 f3766cd6-281f-0410-b1cd-43a5c92072e9

lib/stage2.c

@@ -93,3 +93,4 @@ int stage2(void)
 
 	return 0;
 }
+EXPORT_SYMBOL(stage2);