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Posted to dev@stdcxx.apache.org by "Travis Vitek (JIRA)" <ji...@apache.org> on 2007/11/27 00:28:43 UTC
[jira] Created: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf fails
with assertions
[IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
------------------------------------------------------
Key: STDCXX-673
URL: https://issues.apache.org/jira/browse/STDCXX-673
Project: C++ Standard Library
Issue Type: Bug
Components: Test Driver
Affects Versions: 4.2.0
Reporter: Travis Vitek
Assignee: Travis Vitek
Priority: Minor
Fix For: 4.2.1
extension: "%{N}" buffer size
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
/amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
extension: "%{@}" nested format directive
malformed directives
Failed 8 out of 1572 assertions.
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[jira] Closed: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf fails
with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek closed STDCXX-673.
-------------------------------
Resolution: Fixed
The 8.cstdint test was failing 3 assertions because of this problem, one failure for each of int8_t, int_least8_t and int_fast8_t. So the test should not need to be enhanced.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12551849 ]
Martin Sebor commented on STDCXX-673:
-------------------------------------
Incidentally, how come the 8.cstdint test hasn't been failing on AIX as a result of the signed/unsigned mismatch? It might need to be enhanced to detect this. Can you please look into it before you close this issue?
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549228 ]
Travis Vitek commented on STDCXX-673:
-------------------------------------
The first four failures seem to happen because madvise() on AIX always returns 0. The documentation for this function says...
The madvise subroutine has no functionality and is supported for compatibility only.
Unfortunately, none of the other functions that we are using on other platforms [mincore, mvalid, msync] seem to work either. They all return -1 all the time. I see no way to query the validity of a memory address from the process on AIX. Maybe someone else knows?
As for the type definition problem above, I'm starting to think that this may be a source compatibility issue. I can think of a few cases where code that might have compiled on one system would no longer compile without modification. Am I wrong here?
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12550785 ]
Travis Vitek commented on STDCXX-673:
-------------------------------------
It looks like the best solution for now is to always make these types signed. I found that some platforms define type int8_t to be `char' which can be made unsigned with a compiler flag. This may be an issue for us to consider if we make public typedefs based on these macros. Here are the results on the platforms I had available for testing.
--- AIX/VisualAge C++ 9.0 ---------------
$ xlC -qchars=unsigned x.cpp && ./a.out
int8_t is signed (signed char)
--- HP-UX/aCC 3.73 ----------------------
$ aCC +uc x.cpp && ./a.out
int8_t is unsigned (char)
--- Linux/GCC ---------------------------
$ g++ -funsigned-char x.cpp && ./a.out
int8_t is signed (signed char)
--- Solaris/SunPro 5.9 ------------------
$ CC -xchar=unsigned x.cpp && ./a.out
int8_t is unsigned (char)
--- Irix/MipsPro 7.41 -------------------
$ CC x.cpp && ./a.out
int8_t is signed (signed char)
--- Compaq/Compaq C++ -------------------
$ cxx -unsigned x.cpp && ./a.out
int8_t is signed (signed char)
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548746 ]
Travis Vitek commented on STDCXX-673:
-------------------------------------
I believe that the proposed patch is sufficient, but I'm curious why we need the logic at all. We could just write the following
printf ("#define _RWSTD_INT%d_T %s signed %s\n" \
"#define _RWSTD_UINT%d_T %s unsigned %s\n", \
width, width < 10 ? " " : "", type, \
width, width < 10 ? " " : "", type); \
That way the type is always declared as signed. Leaving the type as `char' in any case seems like a bad idea. The actual underlying type is ambiguous from a readers perspective, and can change if the user compiles their code with with `-qchars=<signed|unsigned>'. It is quite possible that doing such a thing after configuration time would cause other failures, but it is possible that it would work also.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548544 ]
Martin Sebor commented on STDCXX-673:
-------------------------------------
Hmm, you're right. According to the config header for XLC++ on AIX, char is an unsigned type (see the script below -- I ran all the configurations to make sure the bug wasn't due to an optimization or some such quirk).
I suspect I might have wanted to avoid printing "signed" for chars (when char is a signed type) to get the same result as the C99 implementation on the platform I was testing on for compatibility with it (i.e., to make sure int8_t was a typedef the same fundamental type whether it was defined by the C library on the OS or by stdcxx). Obviously, that won't work on platforms where the C library defines int8_t to be a typedef for signed char even if char is signed, but that's a separate issue.
In any case, I think the bug is in the condition on line 413. See if this patch works:
Index: etc/config/src/LIMITS.cpp
===================================================================
--- etc/config/src/LIMITS.cpp (revision 601038)
+++ etc/config/src/LIMITS.cpp (working copy)
@@ -410,7 +410,7 @@
printf ("#define _RWSTD_INT%d_T %s %s%s\n" \
"#define _RWSTD_UINT%d_T %s unsigned %s\n", \
width, width < 10 ? " " : "", \
- 8 == width && '\xff' < 0 ? "signed " : "", type, \
+ 8 == width && 0 < '\xff'? "signed " : "", type, \
width, width < 10 ? " " : "", type); \
} while (0)
And here's the script (I think it's kinda nifty, btw.):
$ for n in 8 11 12 15; do \
for s in a A d D s D; do \
wget -O- -q http://people.apache.org/~sebor/stdcxx/results/aix-5.3-ppc-vacpp-9.0-$n$s-600031-cfg-h.gz.txt \
| gunzip -c 2>/dev/null | grep _RWSTD_CHAR_MAX; \
done; \
done
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
#define _RWSTD_CHAR_MAX '\xff'
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548517 ]
Travis Vitek commented on STDCXX-673:
-------------------------------------
The last four failures happen because the config test LIMITS.cpp defines _RWSTD_INT8_T to `char', which happens to be an unsigned type. Here are the failing test lines...
TEST ("%{I8d}", 128, 0, 0, "-128");
TEST ("%{I8d}", 255, 0, 0, "-1");
TEST ("%{I8d}", -1, 0, 0, "-1");
TEST ("%{I8d}", -128, 0, 0, "-128");
In _rw_fmtinteger(), the value to print is cast to an _RWSTD_INT8_T. In the first case, 128 is cast to a [unsigned] char, which leaves the value 128.
I don't believe that this was the intent. I thought that all of the _RWSTD_INT*_T types are intended to match the requirements of the C99 types `int*_t'. According to 7.18.1.1 p1 of the C99 standard, `int8_t' denotes a signed integer type with a width of exactly 8 bits. Given this, I think that the LIMITS.cpp config test is incorrect and should always define types as either signed or unsigned. The README indicates that it was the intent for the types to always be explicitly signed or unsigned, but the implementation does not match. I'm not sure why this is, but it appears that someone was careful to write code to only add the `signed' qualifier if the type of `char' is actually signed.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549256 ]
Martin Sebor commented on STDCXX-673:
-------------------------------------
I don't know what else we could use on AIX. Maybe we could ask on one of AIX newsgroups of forums. How about here:
http://www.ibm.com/developerworks/forums/forum.jspa?forumID=905
The _RWSTD_XXX config macros are private to our implementation and shouldn't be exposed (yet) in the public interface (which will change once we expose our own <cstdint> as we just discussed in STDCXX-677). So I don't think there's a problem fixing _RWSTD_INT8_T. Let me know if you disagree, otherwise I'll go ahead and apply the patch above.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Updated: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf fails
with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-673:
--------------------------------
Attachment: stdcxx-673.patch
2007-12-11 Travis Vitek <vi...@roguewave.com>
STDCXX-673
* etc/config/src/LIMITS.cpp (main): Always use signed
types for definition of _RWSTD_INT[8,16,32,64]_T macros.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549281 ]
Martin Sebor commented on STDCXX-673:
-------------------------------------
I forgot to respond to your question in above (https://issues.apache.org/jira/browse/STDCXX-673#action_12548746).
The reason for omitting signed was for compatibility with platforms like HP-UX and Sun that define int8_t to be plain char when it's a signed type. I agree that it's not the best idea but there's little we can do about it except complain to the vendor, and even that is unlikely to change anything. What we'll probably have to do is hardcode int8_t the same way known platforms do and autodetect it everywhere else.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Updated: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf fails
with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-673:
--------------------------------
Patch Info: [Patch Available]
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12551664 ]
Martin Sebor commented on STDCXX-673:
-------------------------------------
Okay, this sounds like a good plan for now. I checked your patch in as follows:
http://svn.apache.org/viewvc?rev=604073&view=rev
We will need to revisit this issue at some point before finalizing this though to make sure our typedefs are the same as those provided by the C library on every system. That will require us to either autodetect the underlying type of int8_t or hardcode it for the known platforms (conditionally, depending on the compiler macro defined in response to the option that control the signedness of plain chars). We'll likely end up with a combination of the two approaches.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
> Attachments: stdcxx-673.patch
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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[jira] Commented: (STDCXX-673) [IBM XLC++ 9.0/AIX 5.3] 0.printf
fails with assertions
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548048 ]
Travis Vitek commented on STDCXX-673:
-------------------------------------
Actually, these are the failed assertions...
# Assertion failed on line 416: rw_sprintf("%s", ...) == "(invalid address 0x00000020)", got ""
# Assertion failed on line 426: rw_sprintf("%ls", ...) == "(invalid address 0x00000020)", got ""
# Assertion failed on line 504: rw_sprintf("%{#ls}", ...) == "(invalid address 0x00000020)", got """"
# Assertion failed on line 2442: rw_sprintf("%{t}", ...) == "(invalid address 0x00000020)", got "{ tm_mday=0 [1,31] }"
# Assertion failed on line 1955: rw_sprintf("%{I8d}", ...) == "-128", got "128"
# Assertion failed on line 1956: rw_sprintf("%{I8d}", ...) == "-1", got "255"
# Assertion failed on line 1958: rw_sprintf("%{I8d}", ...) == "-1", got "255"
# Assertion failed on line 1959: rw_sprintf("%{I8d}", ...) == "-128", got "128"
Failed 8 out of 1567 assertions.
> [IBM XLC++ 9.0/AIX 5.3] 0.printf fails with assertions
> ------------------------------------------------------
>
> Key: STDCXX-673
> URL: https://issues.apache.org/jira/browse/STDCXX-673
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Test Driver
> Affects Versions: 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.1
>
>
> extension: "%{N}" buffer size
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "foo", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> /amd/devco/vitek/stdcxx/trunk/tests/src/printf.cpp:1022: rw_vasnprintf(ffffffffffff8d0, ffffffffffff8d8, "bar", va_list) error: errno = 12: Not enough space
> extension: "%{@}" nested format directive
> malformed directives
> Failed 8 out of 1572 assertions.
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