Current Solaris/x86 libitm results

[Rainer Orth]

With your last patches, I get decent test results for libitm on Solaris
11/x86, both with Sun as/ld and gas/Sun ld:

		=== libitm tests ===


Running target unix
FAIL: libitm.c/clone-1.c execution test
FAIL: libitm.c/memcpy-1.c execution test
FAIL: libitm.c/memset-1.c execution test
WARNING: libitm.c++/static_ctor.C compilation failed to produce executable

		=== libitm Summary for unix ===

# of expected passes		20
# of unexpected failures	3
# of expected failures		5

Running target unix/-m64
FAIL: libitm.c/clone-1.c execution test
FAIL: libitm.c++/eh-1.C execution test
WARNING: libitm.c++/static_ctor.C compilation failed to produce executable

		=== libitm Summary for unix/-m64 ===

# of expected passes		21
# of unexpected failures	2
# of expected failures		5

		=== libitm Summary ===

# of expected passes		41
# of unexpected failures	5
# of expected failures		10

With the exception of the 64-bit libitm.c++/eh-1.C failure, they match
what I see on x86_64-unknown-linux-gnu.

This also means the current lack of CFI support in Sun as doesn't make a
difference.

To check the worst possible case, I've also tried Solaris 8/x86, also
with Sun as and gas, but ran into a couple of problems with Sun as:

* It doesn't understand .hidden (and older versions of ld may not,
  either, cf. gcc/configure.ac (gcc_cv_as_hidden).  One would probably
  have to move the test to a common place to avoid duplicating it.  For
  the moment, I've just #if 0'ed the .hidden.

* Later, libitm.so fails to link:

Text relocation remains                         referenced
    against symbol                  offset      in file
GTM_begin_transaction               0x20        .libs/sjlj.o
ld: fatal: relocations remain against allocatable but non-writable sections

  which is true, but doesn't happen on S8 with gas or S11 with either as
  or gas.  I've cheated, removed the -z text from libtool, and linked
  with -mimpure-text.

With those hacks, I can link libitm.so, but all execution tests fail to
link due to PR middle-end/50598.

With gas and Sun ld, on the other hand, testsuite results are good:

                === libitm tests ===


Running target unix
FAIL: libitm.c/clone-1.c execution test
FAIL: libitm.c/memcpy-1.c execution test
FAIL: libitm.c/memset-1.c execution test
FAIL: libitm.c++/eh-1.C execution test
WARNING: libitm.c++/static_ctor.C compilation failed to produce executable

                === libitm Summary ===

# of expected passes            19
# of unexpected failures        4
# of expected failures          5

Only the failure of 32-bit libitm.c++/eh-1.C differs from the Solaris 11
results above.

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University