Simon Glass 62f7970a5a x86: Add error checking to x86 relocation code ... This does not actually change normal behaviour, but adds a check that should detect corruption of relocation data (e.g. by using BSS data prior to relocation). Also add additional debugging output when enabled. During this investigation, two situations have been seen: 1. calculate_relocation_address(): uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start; turns into 111166f: b8 83 c4 17 01 mov $0x117c483,%eax whih is beyond the end of bss: 0117b484 g .bss 00000000 __bss_end Somehow the __bss_end here is 255 bytes ahead. 2. do_elf_reloc_fixups(): uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start; Here the __text_start is 0 in the file: 1111d9f: bb a0 e0 13 01 mov $0x113e0a0,%ebx 1111da4: 81 ef 00 00 00 00 sub $0x0,%edi As it happens, both of these are in pre-relocation code. For these reasons we silent check and ignore bad relocations. Signed-off-by: Simon Glass <sjg@chromium.org>		2013-03-04 15:57:48 -08:00
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cpu	x86: Rearrange the output input to remove BSS	2013-03-04 15:57:40 -08:00
dts	x86: fdt: Create basic .dtsi file for coreboot	2012-12-06 14:30:42 -08:00
include/asm	x86: Support relocation of FDT on start-up	2013-03-04 15:57:47 -08:00
lib	x86: Add error checking to x86 relocation code	2013-03-04 15:57:48 -08:00
config.mk	x86: Wrap small helper functions from libgcc to avoid an ABI mismatch	2011-11-29 21:31:24 +11:00