------- Comment #3 from rguenth at gcc dot gnu dot org 2009-09-29 12:09 -------
Hm. Even lto_read_file_options causes unaligned accesses in some cases. It
looks
like the ELF sections in the wpa files are no aligned:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .gnu.lto_main PROGBITS 0000000000000000 00000040
00000000000002c8 0000000000000000 0 0 1
[ 2] .gnu.lto_myprintf PROGBITS 0000000000000000 00000308
0000000000000322 0000000000000000 0 0 1
[ 3] .gnu.lto_.cgraph PROGBITS 0000000000000000 0000062a
00000000000000c6 0000000000000000 0 0 1
...
properly aligning the data in lto_elf_append_data is needed, but only
for the first data block in a section.
I have a hack^Wpatch.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-09-29 12:09:04
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40754
