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debugging M4 on AIX 5.3
From: |
Ralf Wildenhues |
Subject: |
debugging M4 on AIX 5.3 |
Date: |
Sat, 21 Aug 2010 10:42:04 +0200 |
User-agent: |
Mutt/1.5.20 (2010-04-22) |
I'm trying to debug the recent regression of git branch-1.4 M4 over M4
1.4.14 on AIX. First the gnulib stuff.
Notes:
- 2 gnulib test failures in M4: test-strtod, test-rmdir.
I inserted one fprintf in test-strtod.c, for the "0xp" input asserting
over 'ptr == input + 1':
const char input[] = "0xp";
char *ptr;
double result;
errno = 0;
result = strtod (input, &ptr);
ASSERT (result == 0.0);
ASSERT (!signbit (result));
fprintf (stderr, "ptr is %lu, input + 1 is %lu\n", (unsigned long) ptr,
(unsigned long) input + 1);
ASSERT (ptr == input + 1); /* glibc-2.3.6, MacOS X 10.3, FreeBSD
6.2, AIX 7.1 */
ASSERT (errno == 0);
$ ./test-strtod
ptr is 804398203, input + 1 is 804398201
../../m4/tests/test-strtod.c:434: assertion failed
zsh: abort (core dumped) ./test-strtod
I inserted one fprintf in test-rmdir.h, for the empty directory errno
test:
ASSERT (func (BASE "dir/.//") == -1);
fprintf (stderr, "errno = %d, %s\n", errno, strerror(errno) );
ASSERT (errno == EINVAL || errno == EBUSY);
$ ./test-rmdir
errno = 17, File exists
../../m4/tests/test-rmdir.h:70: assertion failed
zsh: abort (core dumped) ./test-rmdir
In 1.4.14, only the latter fails, at the same position.
- 'gnulib-tool --with-tests --test strtod rmdir' passes on this system.
- 'gnulib-tool --with-tests --dir=strtod --test announce-gen assert autobuild
avltree-oset binary-io c-stack clean-temp cloexec close-stream closein config-h
dirname error execute fdl-1.3 fflush filenamecat fopen fopen-safer fseeko
gendocs getopt-gnu git-version-gen gnu-web-doc-update gnumakefile gnupload
gpl-3.0 ignore-value intprops maintainer-makefile manywarnings memchr2 mkstemp
obstack pipe progname regex sigaction stdbool stdint stdlib-safer strsignal
strstr strtod strtol unlocked-io update-copyright vc-list-files verror
version-etc version-etc-fsf wait-process xalloc xoset xprintf xvasprintf-posix'
passes as well.
Any hints as to what could make the tests fail when run as part of the M4
git tree and not otherwise?
CC is "cc -qlanglvl=extc89 -qlanglvl=extc99" in both cases, CFLAGS=-g.
LIBOBJS contains strtod.lo respective strtod.o, in both cases
config.status contains these lines:
S["REPLACE_STRTOD"]="1"
S["HAVE_STRTOD"]="1"
S["GNULIB_STRTOD"]="1"
D["HAVE_RAW_DECL_STRTOD"]=" 1"
but in the 'gnulib-tool --test' directories, it also contains
D["HAVE_DECL_STRTOD"]=" 1"
Autoconf on this system was a bit old, 2.62.61-550a5, if you think that
could matter I can retry after updating.
Thanks,
Ralf
- debugging M4 on AIX 5.3,
Ralf Wildenhues <=
- Re: debugging M4 on AIX 5.3, Paul Eggert, 2010/08/22
- Re: debugging M4 on AIX 5.3, Eric Blake, 2010/08/23
- Re: debugging M4 on AIX 5.3, Ralf Wildenhues, 2010/08/25
- Re: debugging M4 on AIX 5.3, Eric Blake, 2010/08/25
- Re: debugging M4 on AIX 5.3, Ralf Wildenhues, 2010/08/25
- Fix malloc, calloc, realloc (was: debugging M4 on AIX 5.3), Ralf Wildenhues, 2010/08/28
- Re: Fix malloc, calloc, realloc (was: debugging M4 on AIX 5.3), Ralf Wildenhues, 2010/08/28
- Re: Fix malloc, calloc, realloc, Eric Blake, 2010/08/28
- Re: Fix malloc, calloc, realloc, Ralf Wildenhues, 2010/08/29
next m4 snapshot [was: debugging M4 on AIX 5.3], Eric Blake, 2010/08/30