Nekonomicon - Nekoware bash-3.0 bug?

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Sept. 25, 2005, 3:12 a.m...

When using SGI's bash (2.05) or any version of bash (2 or 3) on other systems, the command:


   $ /usr/gnu/bin/bash -c 'A=$(( 2 + 3 )); echo $A'
   

   5

... produces, as expected, the result "5".

However, using bash-3 from Nekoware. I get:

Code: Select all


   $ /usr/nekoware/bin/bash -c 'A=$(( 2 + 3 )); echo $A'
   

   2: command not found

... which seems to indicate that bash isn't parsing the line correctly.

Could anyone who reads this quickly try this on their own SGI, and see what happens. I'm interested if IRIX release or architecture makes a difference. I've an Octane running 6.5.28.

(I also see this problem when using an auto-compiled bash from NetBSD's pkgsrc or OpenPKG's source RPM. However, another developers using MIPSpro 7.3.1.2m reports that OpenPKG's build works for him (compiled with CFLAGS=-O). I have MIPSpro 7.3.4m, and compiled with significant optimisations.)

Which is a good point - what are (or, indeed, are there) the standard optimisation options/CFLAGS used for building Nekoware builds?

Cheers,

Stuart

zappa
From Tübingen, Germany
Who joined April 9, 2005, 2:42 p.m.

Wrote the following at Sept. 25, 2005, 6:36 a.m...

Looks like bash was compiled without --enable-dparen-arithmetic, either because configure thought it not to be supported, or because of an explizit --disable... Release notes don't say anything about it, though...

Such bugs and goblins in my life!
(Taken from Hamlet)

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Sept. 26, 2005, 3:25 a.m...

This is odd - I've just rebuilt bash from scratch with "--enable-dparen-arithmetic" specifically passed to configure, and yet still the above syntax doesn't work.

Code: Select all


   + CFLAGS='-c99 -O2 -n32 -mips4 -r12000 -apo -float_const -use_readonly_const -TARG:isa=mips4:platform=ip30:processor=r12000 -TENV:zeroinit_in_bss=ON -DEFAULT:platform=ip30 -OPT:fast_io=ON:Olimit=8192:reorg_common=ON:swp=ON -LNO:auto_dist=ON:fusion_peeling_limit=8:gather_scatter=2 -woff 1174,1183,1552'
   

   + LDFLAGS='-Wl,-v -Wl,-s -Wl,-x -n32 -mips4 -rdata_shared -Wl,-allow_jump_at_eop'
   

   + ./configure --cache-file=./config.cache --prefix=/usr/local --disable-multibyte --without-gnu-malloc --disable-minimal-config --enable-alias --enable-arith-for-command --enable-array-variables --enable-bang-history --enable-brace-expansion --enable-command-timing --enable-cond-command --enable-cond-regexp --enable-directory-stack --enable-dparen-arithmetic --enable-extended-glob --enable-help-builtin --enable-history --enable-job-control --enable-net-redirections --enable-process-substitution --enable-progcomp --enable-prompt-string-decoding --enable-readline --enable-select --enable-separate-helpfiles --disable-rpath --disable-nls --without-curses
   

   configure: loading cache ./config.cache
   

   checking build system type... mips-sgi-irix6.5
   

   checking host system type... mips-sgi-irix6.5
   

   checking for emacs... no
   

   checking for xemacs... no
   

   

   Beginning configuration for bash-3.0-release for mips-sgi-irix6.5
   

   

   checking for gcc... cc
   

   checking for C compiler default output... a.out
   

   checking whether the C compiler works... yes
   

   checking whether we are cross compiling... no
   

   checking for suffix of executables...
   

   checking for suffix of object files... o
   

   checking whether we are using the GNU C compiler... no
   

   checking whether cc accepts -g... yes
   

   checking for cc option to accept ANSI C... none needed
   

   checking for strerror in -lcposix... no
   

   checking how to run the C preprocessor... cc -E
   

   checking for egrep... grep -E
   

   checking for ANSI C header files... yes
   

   checking for sys/types.h... yes
   

   checking for sys/stat.h... yes
   

   checking for stdlib.h... yes
   

   checking for string.h... yes
   

   checking for memory.h... yes
   

   checking for strings.h... yes
   

   checking for inttypes.h... yes
   

   checking for stdint.h... yes
   

   checking for unistd.h... yes
   

   checking minix/config.h usability... no
   

   checking minix/config.h presence... no
   

   checking for minix/config.h... no
   

   checking for special C compiler options needed for large files... no
   

   checking for _FILE_OFFSET_BITS value needed for large files... no
   

   checking for _LARGE_FILES value needed for large files... no
   

   checking for a BSD-compatible install... ./support/install.sh -c
   

   checking for ar... ar
   

   checking for ranlib... :
   

   checking for bison... bison -y
   

   checking whether make sets $(MAKE)... yes
   

   checking for an ANSI C-conforming const... yes
   

   checking for inline... inline
   

   checking whether byte ordering is bigendian... yes
   

   checking for preprocessor stringizing operator... yes
   

   checking for working long double with more range or precision than double... yes
   

   checking for function prototypes... yes
   

   checking whether char is unsigned... yes
   

   checking whether NLS is requested... no
   

   checking for msgfmt... no
   

   checking for gmsgfmt... :
   

   checking for xgettext... no
   

   checking for msgmerge... no
   

   checking for off_t... yes
   

   checking for size_t... yes
   

   checking for working alloca.h... yes
   

   checking for alloca... yes
   

   checking for stdlib.h... (cached) yes
   

   checking for unistd.h... (cached) yes
   

   checking for getpagesize... yes
   

   checking for working mmap... yes
   

   checking whether we are using the GNU C Library 2.1 or newer... no
   

   checking whether integer division by zero raises SIGFPE... no
   

   checking for inttypes.h... yes
   

   checking for stdint.h... yes
   

   checking for unsigned long long... yes
   

   checking for inttypes.h... yes
   

   checking whether the inttypes.h PRIxNN macros are broken... no
   

   checking for non-GNU ld... /bin/ld
   

   checking if the linker (/bin/ld) is GNU ld... no
   

   checking for shared library run path origin... done
   

   checking argz.h usability... no
   

   checking argz.h presence... no
   

   checking for argz.h... no
   

   checking limits.h usability... yes
   

   checking limits.h presence... yes
   

   checking for limits.h... yes
   

   checking locale.h usability... yes
   

   checking locale.h presence... yes
   

   checking for locale.h... yes
   

   checking nl_types.h usability... yes
   

   checking nl_types.h presence... yes
   

   checking for nl_types.h... yes
   

   checking malloc.h usability... yes
   

   checking malloc.h presence... yes
   

   checking for malloc.h... yes
   

   checking stddef.h usability... yes
   

   checking stddef.h presence... yes
   

   checking for stddef.h... yes
   

   checking for stdlib.h... (cached) yes
   

   checking for string.h... (cached) yes
   

   checking for unistd.h... (cached) yes
   

   checking sys/param.h usability... yes
   

   checking sys/param.h presence... yes
   

   checking for sys/param.h... yes
   

   checking for feof_unlocked... yes
   

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   checking for getcwd... yes
   

   checking for getegid... yes
   

   checking for geteuid... yes
   

   checking for getgid... yes
   

   checking for getuid... yes
   

   checking for mempcpy... no
   

   checking for munmap... yes
   

   checking for putenv... yes
   

   checking for setenv... no
   

   checking for setlocale... yes
   

   checking for stpcpy... no
   

   checking for strcasecmp... yes
   

   checking for strdup... yes
   

   checking for strtoul... yes
   

   checking for tsearch... yes
   

   checking for __argz_count... no
   

   checking for __argz_stringify... no
   

   checking for __argz_next... no
   

   checking for __fsetlocking... no
   

   checking for iconv... yes
   

   checking for iconv declaration...
   

   extern size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
   

   checking for nl_langinfo and CODESET... yes
   

   checking for LC_MESSAGES... yes
   

   checking for bison... bison
   

   checking version of bison... 1.25, bad
   

   checking whether NLS is requested... no
   

   checking whether to use NLS... no
   

   checking for dirent.h that defines DIR... yes
   

   checking for library containing opendir... none required
   

   checking whether time.h and sys/time.h may both be included... yes
   

   checking for inttypes.h... (cached) yes
   

   checking for unistd.h... (cached) yes
   

   checking for stdlib.h... (cached) yes
   

   checking stdarg.h usability... yes
   

   checking stdarg.h presence... yes
   

   checking for stdarg.h... yes
   

   checking varargs.h usability... yes
   

   checking varargs.h presence... yes
   

   checking for varargs.h... yes
   

   checking for limits.h... (cached) yes
   

   checking for string.h... (cached) yes
   

   checking for memory.h... (cached) yes
   

   checking for locale.h... (cached) yes
   

   checking termcap.h usability... no
   

   checking termcap.h presence... no
   

   checking for termcap.h... no
   

   checking termio.h usability... yes
   

   checking termio.h presence... yes
   

   checking for termio.h... yes
   

   checking termios.h usability... yes
   

   checking termios.h presence... yes
   

   checking for termios.h... yes
   

   checking dlfcn.h usability... yes
   

   checking dlfcn.h presence... yes
   

   checking for dlfcn.h... yes
   

   checking for stddef.h... (cached) yes
   

   checking for stdint.h... (cached) yes
   

   checking netdb.h usability... yes
   

   checking netdb.h presence... yes
   

   checking for netdb.h... yes
   

   checking grp.h usability... yes
   

   checking grp.h presence... yes
   

   checking for grp.h... yes
   

   checking for strings.h... (cached) yes
   

   checking regex.h usability... yes
   

   checking regex.h presence... yes
   

   checking for regex.h... yes
   

   checking sys/ptem.h usability... no
   

   checking sys/ptem.h presence... no
   

   checking for sys/ptem.h... no
   

   checking sys/pte.h usability... no
   

   checking sys/pte.h presence... no
   

   checking for sys/pte.h... no
   

   checking sys/stream.h usability... yes
   

   checking sys/stream.h presence... yes
   

   checking for sys/stream.h... yes
   

   checking sys/select.h usability... yes
   

   checking sys/select.h presence... yes
   

   checking for sys/select.h... yes
   

   checking sys/file.h usability... yes
   

   checking sys/file.h presence... yes
   

   checking for sys/file.h... yes
   

   checking sys/resource.h usability... yes
   

   checking sys/resource.h presence... yes
   

   checking for sys/resource.h... yes
   

   checking for sys/param.h... (cached) yes
   

   checking sys/socket.h usability... yes
   

   checking sys/socket.h presence... yes
   

   checking for sys/socket.h... yes
   

   checking for sys/stat.h... (cached) yes
   

   checking sys/time.h usability... yes
   

   checking sys/time.h presence... yes
   

   checking for sys/time.h... yes
   

   checking sys/times.h usability... yes
   

   checking sys/times.h presence... yes
   

   checking for sys/times.h... yes
   

   checking for sys/types.h... (cached) yes
   

   checking sys/wait.h usability... yes
   

   checking sys/wait.h presence... yes
   

   checking for sys/wait.h... yes
   

   checking netinet/in.h usability... yes
   

   checking netinet/in.h presence... yes
   

   checking for netinet/in.h... yes
   

   checking arpa/inet.h usability... yes
   

   checking arpa/inet.h presence... yes
   

   checking for arpa/inet.h... yes
   

   checking for working alloca.h... (cached) yes
   

   checking for alloca... (cached) yes
   

   checking whether getpgrp requires zero arguments... yes
   

   checking whether setvbuf arguments are reversed... no
   

   checking for vprintf... yes
   

   checking for _doprnt... yes
   

   checking for working strcoll... yes
   

   checking return type of signal handlers... void
   

   checking for __setostype... no
   

   checking for wait3... yes
   

   checking for isinf... no
   

   checking for mkfifo... yes
   

   checking for dup2... yes
   

   checking for select... yes
   

   checking for getdtablesize... yes
   

   checking for getgroups... yes
   

   checking for gethostname... yes
   

   checking for setdtablesize... no
   

   checking for getpagesize... (cached) yes
   

   checking for killpg... yes
   

   checking for lstat... yes
   

   checking for getpeername... yes
   

   checking for sbrk... yes
   

   checking for getrlimit... yes
   

   checking for getrusage... yes
   

   checking for gettimeofday... yes
   

   checking for waitpid... yes
   

   checking for tcgetpgrp... yes
   

   checking for readlink... yes
   

   checking for rename... yes
   

   checking for bcopy... yes
   

   checking for bzero... yes
   

   checking for confstr... yes
   

   checking for sysconf... yes
   

   checking for pathconf... yes
   

   checking for setenv... (cached) no
   

   checking for putenv... (cached) yes
   

   checking for unsetenv... no
   

   checking for setlinebuf... yes
   

   checking for setvbuf... yes
   

   checking for setlocale... (cached) yes
   

   checking for strchr... yes
   

   checking for tcgetattr... yes
   

   checking for uname... yes
   

   checking for ulimit... yes
   

   checking for tzset... yes
   

   checking for siginterrupt... yes
   

   checking for memmove... yes
   

   checking for ttyname... yes
   

   checking for times... yes
   

   checking for getaddrinfo... yes
   

   checking for gethostbyname... yes
   

   checking for getservbyname... yes
   

   checking for getservent... yes
   

   checking for inet_aton... yes
   

   checking for vsnprintf... yes
   

   checking for snprintf... yes
   

   checking for vasprintf... no
   

   checking for asprintf... no
   

   checking for fnmatch... yes
   

   checking for regcomp... yes
   

   checking for regexec... yes
   

   checking for isascii... yes
   

   checking for isblank... yes
   

   checking for isgraph... yes
   

   checking for isprint... yes
   

   checking for isspace... yes
   

   checking for isxdigit... yes
   

   checking for getcwd... (cached) yes
   

   checking for strcasecmp... (cached) yes
   

   checking for strerror... yes
   

   checking for strftime... yes
   

   checking for strpbrk... yes
   

   checking for memset... yes
   

   checking for strstr... yes
   

   checking for strtod... yes
   

   checking for strtol... yes
   

   checking for strtoul... (cached) yes
   

   checking for strtoll... yes
   

   checking for strtoull... yes
   

   checking for strtoimax... yes
   

   checking for strtoumax... yes
   

   checking whether confstr is declared... yes
   

   checking whether printf is declared... yes
   

   checking whether sbrk is declared... yes
   

   checking whether strcpy is declared... yes
   

   checking whether strsignal is declared... no
   

   checking whether strtold is declared... yes
   

   checking for broken strtold... yes
   

   checking for declaration of strtoimax... yes
   

   checking for declaration of strtol... yes
   

   checking for declaration of strtoll... yes
   

   checking for declaration of strtoul... yes
   

   checking for declaration of strtoull... yes
   

   checking for declaration of strtoumax... yes
   

   checking for sys/time.h... (cached) yes
   

   checking for unistd.h... (cached) yes
   

   checking for alarm... yes
   

   checking for working mktime... no
   

   checking for argz.h... (cached) no
   

   checking errno.h usability... yes
   

   checking errno.h presence... yes
   

   checking for errno.h... yes
   

   checking fcntl.h usability... yes
   

   checking fcntl.h presence... yes
   

   checking for fcntl.h... yes
   

   checking for malloc.h... (cached) yes
   

   checking stdio_ext.h usability... no
   

   checking stdio_ext.h presence... no
   

   checking for stdio_ext.h... no
   

   checking for stdlib.h... (cached) yes
   

   checking for unistd.h... (cached) yes
   

   checking for getpagesize... (cached) yes
   

   checking for working mmap... (cached) yes
   

   checking for __argz_count... (cached) no
   

   checking for __argz_next... (cached) no
   

   checking for __argz_stringify... (cached) no
   

   checking for dcgettext... no
   

   checking for mempcpy... (cached) no
   

   checking for munmap... (cached) yes
   

   checking for stpcpy... (cached) no
   

   checking for strcspn... yes
   

   checking for strdup... (cached) yes
   

   checking for wctype.h... (cached) no
   

   checking for wchar.h... (cached) no
   

   checking langinfo.h usability... yes
   

   checking langinfo.h presence... yes
   

   checking for langinfo.h... yes
   

   checking for mbsrtowcs... (cached) no
   

   checking for mbrtowc... yes
   

   checking for mbrlen... yes
   

   checking for wctomb... yes
   

   checking for wcwidth... yes
   

   checking for wcsdup... no
   

   checking for mbstate_t... yes
   

   checking for nl_langinfo and CODESET... yes
   

   checking for dlopen in -ldl... yes
   

   checking for dlopen... yes
   

   checking for dlclose... yes
   

   checking for dlsym... yes
   

   checking whether sys_siglist is declared... no
   

   checking for uid_t in sys/types.h... yes
   

   checking type of array argument to getgroups... gid_t
   

   checking for off_t... (cached) yes
   

   checking for mode_t... yes
   

   checking for uid_t in sys/types.h... (cached) yes
   

   checking for pid_t... yes
   

   checking for size_t... (cached) yes
   

   checking for ssize_t... yes
   

   checking for time_t... yes
   

   checking for long long... long long
   

   checking for unsigned long long... unsigned long long
   

   checking return type of signal handlers... (cached) void
   

   checking for char... yes
   

   checking size of char... 1
   

   checking for short... yes
   

   checking size of short... 2
   

   checking for int... yes
   

   checking size of int... 4
   

   checking for long... yes
   

   checking size of long... 4
   

   checking for char *... yes
   

   checking size of char *... 4
   

   checking for double... yes
   

   checking size of double... 8
   

   checking for long long... yes
   

   checking size of long long... 8
   

   checking for u_int... yes
   

   checking for u_long... yes
   

   checking for bits16_t... no
   

   checking for u_bits16_t... no
   

   checking for bits32_t... no
   

   checking for u_bits32_t... no
   

   checking for bits64_t... no
   

   checking for ptrdiff_t... yes
   

   checking whether stat file-mode macros are broken... no
   

   checking whether #! works in shell scripts... yes
   

   checking whether the ctype macros accept non-ascii characters... yes
   

   checking if dup2 fails to clear the close-on-exec flag... no
   

   checking whether pgrps need synchronization... no
   

   checking for type of signal functions... posix
   

   checking for sys_errlist and sys_nerr... yes
   

   checking for sys_siglist in system C library... yes
   

   checking for _sys_siglist in signal.h or unistd.h... yes
   

   checking for _sys_siglist in system C library... yes
   

   checking whether signal handlers are of type void... yes
   

   checking for clock_t... yes
   

   checking for sigset_t... yes
   

   checking for quad_t... no
   

   checking for intmax_t... yes
   

   checking for uintmax_t... yes
   

   checking for socklen_t... yes
   

   checking for size and type of struct rlimit fields... rlim_t
   

   checking for struct termios.c_line... no
   

   checking for struct termio.c_line... yes
   

   checking for struct dirent.d_ino... yes
   

   checking for struct dirent.d_fileno... no
   

   checking for struct dirent.d_namlen... no
   

   checking for struct winsize in sys/ioctl.h and termios.h... sys/ioctl.h
   

   checking for struct timeval in sys/time.h and time.h... yes
   

   checking for struct stat.st_blocks... yes
   

   checking whether struct tm is in sys/time.h or time.h... time.h
   

   checking for struct tm.tm_zone... no
   

   checking for tzname... yes
   

   checking for struct timezone in sys/time.h and time.h... yes
   

   checking for the existence of strsignal... no
   

   checking if opendir() opens non-directories... no
   

   checking whether ulimit can substitute for getdtablesize... yes
   

   checking to see if getenv can be redefined... no
   

   checking if getcwd() will dynamically allocate memory... no
   

   checking for presence of POSIX-style sigsetjmp/siglongjmp... present
   

   checking whether or not strcoll and strcmp differ... no
   

   checking for standard-conformant putenv declaration... no
   

   checking for printf floating point output in hex notation... yes
   

   checking if signal handlers must be reinstalled when invoked... no
   

   checking for presence of necessary job control definitions... present
   

   checking for presence of named pipes... present
   

   checking whether termios.h defines TIOCGWINSZ... yes
   

   checking for TIOCSTAT in sys/ioctl.h... no
   

   checking for FIONREAD in sys/ioctl.h... yes
   

   checking for speed_t in sys/types.h... no
   

   checking whether getpw functions are declared in pwd.h... yes
   

   checking for unusable real-time signals due to large values... no
   

   checking for tgetent... no
   

   checking for tgetent in -ltermcap... yes
   

   checking which library has the termcap functions... using libtermcap
   

   checking whether /dev/fd is available... standard
   

   checking whether /dev/stdin stdout stderr are available... absent
   

   checking for default mail directory... /var/mail
   

   checking shared object configuration for loadable builtins... supported
   

   updating cache ./config.cache
   

   configure: creating ./config.status
   

   config.status: creating Makefile
   

   config.status: creating builtins/Makefile
   

   config.status: creating lib/readline/Makefile
   

   config.status: creating lib/glob/Makefile
   

   config.status: creating lib/intl/Makefile
   

   config.status: creating lib/malloc/Makefile
   

   config.status: creating lib/sh/Makefile
   

   config.status: creating lib/termcap/Makefile
   

   config.status: creating lib/tilde/Makefile
   

   config.status: creating doc/Makefile
   

   config.status: creating support/Makefile
   

   config.status: creating po/Makefile.in
   

   config.status: creating examples/loadables/Makefile
   

   config.status: creating examples/loadables/perl/Makefile
   

   config.status: creating pathnames.h
   

   config.status: creating config.h
   

   config.status: executing default-1 commands
   

   config.status: creating po/POTFILES
   

   config.status: creating po/Makefile
   

   config.status: executing default commands

... all of which looks okay to me.

The only other things which look at all suspect are:

WARNINGs for "textdomain" and "bindtextdomain" saying "The indicated expression has no effect."

WARNINGs that /usr/include/stdint.h and /usr/include/inttypes.h contain incompatible type definitions(!) and

WARNINGs at linking-stage that lib/tilde/libtilde.a and lib/readline/libhistory.a aren't used for resolving any symbol.

Any ideas... ?

squeen
Moderator
From Maryland, USA
Who joined May 9, 2003, 6:10 a.m.

Wrote the following at Sept. 26, 2005, 3:28 a.m...

I compiled the nekoware bash, although I'm not a full-time bash user, it has worked alright for me. I can try to recompile with the option specified abive.

zappa
From Tübingen, Germany
Who joined April 9, 2005, 2:42 p.m.

Wrote the following at Sept. 26, 2005, 11:01 a.m...

stuart wrote: This is odd - I've just rebuilt bash from scratch with "--enable-dparen-arithmetic" specifically passed to configure, and yet still the above syntax doesn't work.

This ist strange, since building from scratch works fine for me. Maybe some gccism active there, since I'm building with gcc. Can you take a look into config.h, if DPAREN_ARITHMETIC is indeed defined?

Such bugs and goblins in my life!

(Taken from Hamlet)

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Sept. 26, 2005, 11:18 a.m...

zappa wrote: This ist strange, since building from scratch works fine for me. Maybe some gccism active there, since I'm building with gcc. Can you take a look into config.h, if DPAREN_ARITHMETIC is indeed defined?

Yeah - I'm confused: DPAREN_ARITHMETIC is set in config.h, and yet commands which make use of the syntax don't work.

I've even been through and fixed every single WARNING that MIPSpro throws out (except for the binddomain and bindtextdomain ones, but I don't think they're significant).

By default, configure sets config.h to include both <stdint.h> and <inttypes.h> which clash with each other, and I changed config.h to address this. It made no difference...

I tried to look at putting some debugging in to see where things are going wrong, but DPARENS_ARITHMETIC appears in so many of the source files that I don't know where to concentrate.

In any case, I couldn't get paren arithmetic to work at all with MIPSpro (7.4.3m)

To assess the depth of this problem, could anyone who reads this please run the command from my initial post, and help to confirm:

* Does this problem affect only me, only people using 6.5.28, or all versions of IRIX on all machines (using neko_bash)?

Assuming more than just me are affected, the next step would be to see whether building with GCC on the same machine works or not...

nekonoko
Site Admin
From Pleasanton, California
Who joined Jan. 23, 2003, 1:31 a.m.

Wrote the following at Sept. 26, 2005, 11:25 a.m...

Might be worthwhile to apply the bash-3.0 patches and see if that resolves anything:

http://ftp.gnu.org/gnu/bash/bash-3.0-patches/

Twitter: @neko_no_ko
IRIX Release 4.0.5 IP12 Version 06151813 System V
Copyright 1987-1992 Silicon Graphics, Inc.
All Rights Reserved.

voidfoo
From Southern CA
Who joined May 17, 2003, 2:01 p.m.

Wrote the following at Sept. 26, 2005, 12:18 p.m...

yes, it is very interesting. neko_bash has the same error on .28m and .26m here.

it seems that one char is eaten by some unknown. try this:

Code: Select all


   > /usr/nekoware/bin/bash -c 'A=$(x(2+3)); echo $A'
   

   >/usr/nekoware/bin/bash -c 'A=$(xls ./); echo $A'

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Sept. 26, 2005, 5:07 p.m...

nekonoko wrote: Might be worthwhile to apply the bash-3.0 patches and see if that resolves anything

Good thought - but this was with bash-3.00.16, which incorporates the latest patches.

voidfoo wrote: it seems that one char is eaten by some unknown

You're a genius! Well spotted

So I guess the next question is: Can anyone see why this is happening... ?

docelic
From Croatia
Who joined Sept. 30, 2005, 4:41 p.m.

Wrote the following at Oct. 2, 2005, 9:13 a.m...

Same problem happens here on 6.5.27f
Bash is neko_bash GNU bash, version 3.00.0(1)-release (mips-sgi-irix6.5)

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Oct. 2, 2005, 2:39 p.m...

I'm working through this one now with one of the bash maintainers ... current thoughts are a GCC-ism that's been missed, or bison doing something silly.

I'll report back with any updates - but if anyone has any further thoughts then please post!

docelic - what version of the compilers are you using? I've an unconfirmed report that 7.3.1m generates working bash binaries, whereas my 7.3.4m definitely doesn't

Cheers,

Stuart

Hakimoto
Moderator
From Kabul, Afghanistan, Asia
Who joined March 30, 2003, 4:29 a.m.

Wrote the following at Oct. 2, 2005, 2:54 p.m...

The current, neko_bash, what has it been compiled with? I use it for a long time now, and i've not seen any problems in everyday usage, but then maybe this is specific mischief. in any case, it'd be good to know. and hell, maybe we need a recompile.

...only chemist in .af?
Eroteme.ch - eternally unfinished and never started

Nihilus
From Stockholm, Sweden
Who joined Dec. 18, 2004, 8:21 a.m.

Wrote the following at Oct. 24, 2006, 7:46 a.m...

Works with MIPSPRO IFF -O1 is set.

SGI Systems: R4K :Indigo:

/256MB/XS-24, R5K 150MHz :Indy:

/160MB/XL-24, R10K 175MHz :O2:

/640MB, R12K 400MHz :Octane2:

/Vpro6/1GB & R4K 250 MHz :Indigo2IMP:

/128 MB/XZ Extreme/GIO64 FDDI

"It's a UNIX system! I know this! "

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Oct. 24, 2006, 1:43 p.m...

Nihilus wrote: Works with MIPSPRO IFF -O1 is set.

I can't reproduce this, unfortunately. Certainly, bash-3.2 with -O1 the test suite looks better - but for me it also hangs during the "run-printf" tests.

I built using:

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   CC="cc" CFLAGS="-O1 -n32 -mips4 -woff 1174,1183,1185,1552" LDFLAGS="-Wl,-v -Wl,-s -n32 -mips4" ./configure --enable-alias --enable-arith-for-command --enable-array-variables --enable-bang-history --enable-brace-expansion --enable-command-timing --enable-cond-command --enable-cond-regexp --enable-debugger --enable-directory-stack --enable-disabled-builtins --enable-dparen-arithmetic --enable-extended-glob --enable-help-builtin --enable-history --enable-job-control --enable-net-redirections --enable-process-substitution --enable-progcomp --enable-prompt-string-decoding --enable-readline --enable-select --enable-xpg-echo-default

(e.g. very minimal flags)

Looking at the differences between the "/tmp/xx" output from the test suite before hanging, the expected values are:

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   4.20
   

   4.20
   

   4.2
   

   4.20
   

   4.20
   

   4.2
   

   4.200000E+00
   

   4.200000e+00
   

   4.2E+00
   

   4.2e+00

... whereas my last output from my test-suite before hanging is:

Code: Select all

... so I'm wondering if some form of floating-point exception is causing the hang.

Nihilus , could you confirm exactly what configure options you used, and what the content of your /etc/compiler.defaults file is?

stuart
From Cambridge, UK
Who joined Aug. 23, 2004, 5:37 p.m.

Wrote the following at Oct. 24, 2006, 1:55 p.m...

The commands in the test-suite which produce this output are:

Code: Select all


   # test some simple floating point formats
   

   printf "%4.2f\n" 4.2
   

   printf "%#4.2f\n" 4.2
   

   printf "%#4.1f\n" 4.2
   

   

   printf "%*.*f\n" 4 2 4.2
   

   printf "%#*.*f\n" 4 2 4.2
   

   printf "%#*.*f\n" 4 1 4.2
   

   

   printf "%E\n" 4.2
   

   printf "%e\n" 4.2
   

   printf "%6.1E\n" 4.2
   

   printf "%6.1e\n" 4.2
   

   

   printf "%G\n" 4.2
   

   printf "%g\n" 4.2
   

   printf "%6.2G\n" 4.2
   

   printf "%6.2g\n" 4.2

... so these aren't especially complex tests.

It's clear that the output the MIPSpro bash-3.2 produces is wrong - and it appears to be 'printf "%G\n" 4.2' that hangs.

My current GCC build of bash [3.1.17(1)] outputs "0" when the above command is run (which is also wrong), and running the new build of 3.2 and running the same command also causes bash to lock and need a "kill -9" to abort the process.

Update
I've just spent the eveing rebuilding bash with just about every combination of flags, and the (neko) GCC versions always output 0 when reformatting floats with printf. For me, MIPSpro versions always hang on the same test. Could someone with freeware GCC installed please try building with this?

SGI: Development

Nekoware bash-3.0 bug?