[Bug libstdc++/53006] New: libstdc++-prettyprinters/shared_ptr.cc FAILs

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53006

             Bug #: 53006
           Summary: libstdc++-prettyprinters/shared_ptr.cc FAILs
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: r...@gcc.gnu.org
                CC: tro...@gcc.gnu.org
              Host: i386-pc-solaris2.11
            Target: i386-pc-solaris2.11
             Build: i386-pc-solaris2.11


Since prettyprinters.exp has been enabled recently, the shared_ptr.cc test
FAILs on Solaris 11/x86 only:

FAIL: libstdc++-prettyprinters/shared_ptr.cc print esp
FAIL: libstdc++-prettyprinters/shared_ptr.cc print ewp1
FAIL: libstdc++-prettyprinters/shared_ptr.cc print ewp2
FAIL: libstdc++-prettyprinters/shared_ptr.cc print sp1
FAIL: libstdc++-prettyprinters/shared_ptr.cc print wp1
FAIL: libstdc++-prettyprinters/shared_ptr.cc print wp2

I'm using a 64-bit gdb 7.4 linked with the vendor-supplied libpython2.6.so
(same problem with libpython2.7.so).

In libstdc++.log, I find:

$1 = skipping: 80         return 0;^M
Python Exception <type 'exceptions.TypeError'> expected string or buffer: ^M
Python Exception <type 'exceptions.TypeError'> expected string or buffer: ^M
got: $1 = Python Exception <type 'exceptions.TypeError'> expected string or
buffer: ^M
FAIL: libstdc++-prettyprinters/shared_ptr.cc print esp
skipping: Python Exception <type 'exceptions.TypeError'> expected string or
buffer: ^M
std::shared_ptr (empty) 0x0^M

Manually running gdb with the equivalent of the generated shared_ptr.gdb file,
I
get:

(gdb) print esp
Python Exception <type 'exceptions.TypeError'> expected string or buffer: 
Python Exception <type 'exceptions.TypeError'> expected string or buffer: 
$1 = std::shared_ptr (empty) 0x0

Unfortunately, expect/dejagnu merge stdout and stderr here, causing the mixture
of both streams.

When I set python print-stack full first, I get:

(gdb) print esp
$1 = Traceback (most recent call last):
  File
"/vol/gcc/src/hg/trunk/local/libstdc++-v3/testsuite/../python/libstdcxx/v6/printers.py",
line 777, in __call__
    match = self.compiled_rx.match(typename)
TypeError: expected string or buffer

Traceback (most recent call last):
  File
"/vol/gcc/src/hg/trunk/local/libstdc++-v3/testsuite/../python/libstdcxx/v6/printers.py",
line 777, in __call__
    match = self.compiled_rx.match(typename)
TypeError: expected string or buffer
std::shared_ptr (empty) 0x0

I cannot really make sense of that (barely knowing python), but if I add

    print type(typename)

in printers.py, I find:

<type 'NoneType'>

Strangely, the same gdb binary works on Solaris 10 with the bundled
libpython2.6.so, so this might be a bug in that library on Solaris 11.

Suggestions?

  Rainer