LTO and libelf (and FreeBSD)

[Gerald Pfeifer]

On Sun, 23 May 2010, Kai Wang wrote:
>> Based on this, it will be great if you can apply your patch to 
>> -CURRENT, 8-STABLE and 7-STABLE.
> I'll see what I can do.

Thanks!

> The elf_update() failure is caused by an alignment check inside
> FreeBSD elf_update(). [...]
> Anyway, I attached a patch for FreeBSD libelf which removes the
> d_align check against section aligment. Please try applying it to a
> vanilla FreeBSD 7.3 libelf (The patch includes the previous
> elf_getbase() change) and run the gcc test suite again...

This works like a charm, and we now go from 
http://gcc.gnu.org/ml/gcc-testresults/2010-05/msg02150.html
to
http://gcc.gnu.org/ml/gcc-testresults/2010-05/msg02245.html
basically fixing all of LTO and WHOPR, see below for details:


=== g++ Summary ===		vanilla	patched	Richard's	latest
                   			libelf	GCC patch	libelf+
								Richard's

# of expected passes		22876	23118	23118		23361
# of unexpected failures	425	142	142		7 <===
# of expected failures		151	151	151		151
# of unresolved testcases	124	66	66		5 <===
# of unsupported tests		150	150	150		150

=== gcc Summary ===

# of expected passes		64021	67099	67099		70184
# of unexpected failures	3806	1667	1667		102 <===
# of unexpected successes	1	1	1		1
# of expected failures		171	171	171		171
# of unresolved testcases	2580	1292	1292		7 <===
# of unsupported tests		1284	1284	1284		1284

=== gfortran Summary === (one test added for the last run)

# of expected passes		34094	34122	34123		34145
# of unexpected failures	48	27	27		11 <===
# of expected failures		22	22	22		22
# of unresolved testcases	37	16	16		0 <===
# of unsupported tests		266	266	266		266


What is your plan of applying these patches to libelf in FreeBSD?

Gerald