Re: 22.locale.codecvt.length on AIX

Tue, 22 Apr 2008 15:32:43 -0700 

Btw., the test attempts to create a locale from a generated charmap
file. The charmap file defines mb_cur_max to be 9 which is pretty
much guaranteed to exceed the value of MB_LEN_MAX (on AIX it's 4).
Unless the localedef utility is careful about buffer overflow it
might easily corrupt memory. I just corrected one potential problem
in this area pointed out in STDCXX-753 but I'm not sure that was
the only one. One way confirm the hypothesis that the excessively
long multibyte characters are causing trouble on AIX would be to
reduce their length and re-run the test.

  http://issues.apache.org/jira/browse/STDCXX-753

Martin Sebor wrote:

Martin Sebor wrote:

Travis Vitek wrote:

These tests may have binary compatibility issues...

  22.locale.codecvt.length


I see some unexpected output with this test when I compile
it with XLC++ 9.0 in 15d.


Even more strange, it looks like the test passes in nightly
builds on AIX...


First, note the "Error: bad_alloc:
out of memory" I think it might actually be coming out of
the localedef utility. But then the test seems to hang:

$ TOPDIR=~/stdcxx-4.2.x ./22.locale.codecvt.length
# INFO (S1) (10 lines):
# TEXT:
# COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
# ENVIRONMENT: powerpc running aix-5.3
# FILE: 22.locale.codecvt.length.cpp
# COMPILED: Apr 22 2008, 12:15:12
# COMMENT:
############################################################

# CLAUSE: lib.locale.codecvt.virtuals

# NOTE (S2) (5 lines):
# TEXT: executing "rm -rf  /tmp/tmpfile-elUaaa"
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: process.cpp
# LINE: 276

# NOTE (S2) (5 lines):
# TEXT: executing "mkdir /tmp/tmpfile-elUaaa"
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: process.cpp
# LINE: 276

# INFO (S1) (3 lines):
# TEXT: std::codecvt<char, char, mbstate_t>::length (state_type&, const extern_type*, const extern_type*, size_t) 
# CLAUSE: lib.locale.codecvt.virtuals

# INFO (S1) (3 lines):
# TEXT: std::codecvt_byname<char, char, mbstate_t>::length (state_type&, const extern_type*, const extern_type*, size_t) 
# CLAUSE: lib.locale.codecvt.virtuals

# INFO (S1) (3 lines):
# TEXT: std::codecvt<wchar_t, char, mbstate_t>::length (state_type&, const extern_type*, const extern_type*, size_t) 
# CLAUSE: lib.locale.codecvt.virtuals

# INFO (S1) (3 lines):
# TEXT: std::codecvt_byname<wchar_t, char, mbstate_t>::length (state_type&, const extern_type*, const extern_type*, size_t) 
# CLAUSE: lib.locale.codecvt.virtuals

# INFO (S1) (3 lines):
# TEXT: locale ("[EMAIL PROTECTED]") [algorithmic encoding]
# CLAUSE: lib.locale.codecvt.virtuals

# NOTE (S2) (5 lines):
# TEXT: executing "../bin/localedef -w701 -w702 -w706 -c -f /tmp/tmpfile-elUaaa/charmap -i /tmp/tmpfile-elUaaa/source /tmp/tmpfile-elUaaa/mb_cur_max-9" 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: process.cpp
# LINE: 276

Error: bad_alloc: out of memory
# ERROR (S8) (5 lines):
# TEXT: the command "../bin/localedef -w701 -w702 -w706 -c -f /tmp/tmpfile-elUaaa/charmap -i /tmp/tmpfile-elUaaa/source /tmp/tmpfile-elUaaa/mb_cur_max-9" exited with status 4 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: process.cpp
# LINE: 306

# ERROR (S8) (4 lines):
# TEXT: failed to create a locale database
# CLAUSE: lib.locale.codecvt.virtuals
# LINE: 368

# NOTE (S2) (5 lines):
# TEXT: executing "locale -a > /tmp/tmpfile-ftUaab"
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: process.cpp
# LINE: 276


When I run it in the debugger, I don't get the bad_alloc and
the test runs to completion with this output:

# NOTE (S2) (5 lines):
# TEXT: failed to find 3-byte characters in locale "Zh_CN" with MB_CUR_MAX = 4 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: locale.cpp
# LINE: 631

# NOTE (S2) (5 lines):
# TEXT: failed to find 3-byte characters in locale "Zh_CN.GB18030" with MB_CUR_MAX = 4 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: locale.cpp
# LINE: 631

# NOTE (S2) (5 lines):
# TEXT: failed to find 3-byte characters in locale "zh_TW" with MB_CUR_MAX = 4 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: locale.cpp
# LINE: 631

# NOTE (S2) (5 lines):
# TEXT: failed to find 3-byte characters in locale "zh_TW.IBM-eucTW" with MB_CUR_MAX = 4 
# CLAUSE: lib.locale.codecvt.virtuals
# FILE: locale.cpp
# LINE: 631

# INFO (S1) (3 lines):
# TEXT: locale ("[EMAIL PROTECTED]") [libc-based encoding, single-byte characters] 
# CLAUSE: lib.locale.codecvt.virtuals

# INFO (S1) (3 lines):
# TEXT: locale ("[EMAIL PROTECTED]") [libc-based encoding, MB_CUR_MAX = 3, multi-byte characters: "\x01", "\xc2\x80", "\xe0\xa0\x80"] 
# CLAUSE: lib.locale.codecvt.virtuals

# +-----------------------+----------+----------+----------+
# | DIAGNOSTIC            |  ACTIVE  |   TOTAL  | INACTIVE |
# +-----------------------+----------+----------+----------+
# | (S1) INFO             |        9 |        9 |       0% |
# | (S2) NOTE             |        8 |      612 |      98% |
# | (S5) WARNING          |        0 |        2 |     100% |
# | (S7) ASSERTION        |        0 |      382 |     100% |
# | (S8) ERROR            |        0 |        5 |     100% |
# +-----------------------+----------+----------+----------+
/amd/devco/sebor/stdcxx-4.2.x/tests/src/driver.cpp:1528: rw_note(): warning: test finished, cannot call 

execution completed



  22.locale.ctype.scan
  22.locale.num.put

I'm also concerned with this test because it does not fail in nightly
builds...
  22.locale.messages.mt

Travis


aix-5.3-vacpp-8.0         SRC: 4.2.0  4.2.0  4.2.1  4.2.1
                          LIB: 4.2.0  4.2.1  4.2.0  4.2.1
0.printf                        SEGV   SEGV     A1     A1
0.process                       SEGV   SEGV      0      0
18.setjmp                        HUP    HUP     A1     A1
18.support.rtti                  N/A    N/A     A7     A7
21.cwchar                        A11    A11     A5     A5
21.string.assign                A360   A360    A60    A60
21.string.insert                A840   A840   A180   A180
21.string.replace              A1060  A1060   A240   A240
22.locale.codecvt.length           0   ABRT      0      0
22.locale.codecvt.out            N/A    N/A   SEGV   SEGV
22.locale.codecvt.stdcxx-435     N/A    N/A   ABRT   NOUT
22.locale.ctype.scan             HUP   ABRT      0      0
22.locale.messages               HUP   A106    HUP      0
22.locale.messages.mt           SEGV   SEGV   SEGV   SEGV
22.locale.money.get              A20    A20    A20    A20
22.locale.num.get                A96    A96    A96    A96
22.locale.num.put                  0    A24    A26      0
22.locale.num.put.stdcxx-2       N/A    N/A   ABRT   NOUT
22.locale.time.get               A46    A46   SEGV   SEGV
23.deque.special               A1536  A1536      0      0
23.vector.bool.stdcxx-235       ABRT   ABRT   NOUT   NOUT
25.heap                          A31    A31      0      0
25.partial.sort                A2603  A2603      0      0
25.random.shuffle                 A1     A1      0      0
26.class.gslice                 A162   A162   A162   A162
26.valarray.cassign                0      0   COMP   COMP
27.basic.ios.copyfmt.stdcxx-766  N/A    N/A   ABRT   NOUT
27.ostream                        A2     A2      0      0
8.cstdint                         A3     A3      0      0

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