[Bug libffi/40444] New: [4.5 Regression] libffi badly broken with -m64 by some revision between 148383 and 148472.

["dominiq at lps dot ens dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

See comment #4 of pr40385:

                === libffi Summary for unix ===

# of expected passes            1594
# of expected failures          10
# of unsupported tests          15

Running target unix/-m64
FAIL: libffi.call/closure_fn0.c -O0 -W -Wall execution test
...
FAIL: libffi.special/unwindtest.cc  -shared-libgcc -lstdc++ execution test

                === libffi Summary for unix/-m64 ===

# of expected passes            776
# of unexpected failures        409
# of expected failures          10
# of unsupported tests          15

                === libffi Summary ===

# of expected passes            2370
# of unexpected failures        409
# of expected failures          20
# of unsupported tests          30

I have had a look at some crash reports. They look as:

[ibook-dhum] gcc/_gcc_clean% cat
~/Library/Logs/CrashReporter/closure_fn0.exe_2009-06-15-074300_ibook-dhum.crash
Process:         closure_fn0.exe [67697]
Path:            ./closure_fn0.exe
Identifier:      closure_fn0.exe
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  expect [60005]

Date/Time:       2009-06-15 07:43:00.456 +0200
OS Version:      Mac OS X 10.5.7 (9J61)
Report Version:  6
Anonymous UUID:  E80146C8-66E0-457D-87E0-4A904418933C

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000100100210
Crashed Thread:  0

Thread 0 Crashed:
0   ???                                 0x0000000100100210 0 + 4296016400
1   closure_fn0.exe                     0x00000001000009f4 start + 52

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000100100210  rbx: 0x00007fff5fbf8c60  rcx: 0x0000000000000004 
rdx: 0x0000000000000003
  rdi: 0x0000000000000001  rsi: 0x0000000000000002  rbp: 0x00007fff5fbf8ca0 
rsp: 0x00007fff5fbf8b88
   r8: 0x000000000000007f   r9: 0x00000000000001ad  r10: 0x0000000100002150 
r11: 0x0000000100004f20
  r12: 0x0000000000000000  r13: 0x0000000000000000  r14: 0x0000000000000000 
r15: 0x0000000000000000
  rip: 0x0000000100100210  rfl: 0x0000000000010246  cr2: 0x0000000100100210

Binary Images:
       0x100000000 -        0x100000fff +closure_fn0.exe ??? (???)
<6d8a3f27722de7f10c1822591331d4f3>
/Volumes/MacBook/opt/gcc/i686-darwin/i686-apple-darwin9/libffi/testsuite/closure_fn0.exe
       0x100003000 -        0x100005ff7 +libffi.4.dylib ??? (???)
<ca0f9c56e408e1f77be7289ad188fc7e>
/opt/gcc/i686-darwin/i686-apple-darwin9/x86_64/libffi/.libs/libffi.4.dylib
       0x10000a000 -        0x10001eff1 +libgcc_s.1.dylib ??? (???)
<28ae595aba1589142c1755e5b0ac38dc> /opt/gcc/i686-darwin/gcc/libgcc_s.1.dylib
    0x7fff5fc00000 -     0x7fff5fc2e643  dyld 97.1 (???)
<b40847f1ce1ba2ed13837aeccbf19284> /usr/lib/dyld
    0x7fff82d7e000 -     0x7fff82f09ffb  libSystem.B.dylib ??? (???)
<558e10ab4bc6790fd3ee1abd14458085> /usr/lib/libSystem.B.dylib
    0x7fff83fe2000 -     0x7fff83fe6fff  libmathCommon.A.dylib ??? (???)
/usr/lib/system/libmathCommon.A.dylib
    0x7fffffe00000 -     0x7fffffe01780  libSystem.B.dylib ??? (???)
/usr/lib/libSystem.B.dylib


-- 
           Summary: [4.5 Regression] libffi badly broken with -m64 by some
                    revision between 148383 and 148472.
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libffi
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr
 GCC build triplet: i686-apple-darwin9
  GCC host triplet: i686-apple-darwin9
GCC target triplet: i686-apple-darwin9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40444