Build errors on HP-UX #39

dumol · 2020-02-05T12:34:44Z

Hi,

Fellow OpenBSD user here, with access to an Itanium HP-UX 11.31i server. I gave this a try, inspired by your call for HP-UX testing in README.md.

Have tried to build this with both the C and aC++ compilers (the latter can also compile ANSI-C if invoked with -Ae).

Versions used:

$ cc -V
cc: HP C/aC++ B3910B A.06.27 [May 22 2012]
$ aCC -V
aCC: HP C/aC++ B3910B A.06.27 [May 22 2012]

$ ./configure
checking for C compiler... cc
checking if C compiler can compile C99 without -std=c99... yes
checking for -w compiler flag... yes
checking for OS... HP-UX
checking for __dead... no
checking for __dead2... no
checking for asprintf... no
checking for confstr... yes
checking for curses library... curses.h
checking for issetugid... no
checking for pledge... no
checking for reallocarray... no
checking for setresgid... yes
checking for setresuid... yes
checking for sig_t... no
checking for srand_deterministic... no
checking for st_mtim... no
checking for st_mtimespec... no
checking for stravis... no
checking for strlcat... no
checking for strlcpy... no
checking for strtonum... no
checking for strunvis... no
checking for sys_siglist... no
checking for sys_signame... no
checking for timeradd... no
checking for timersub... no
creating Makefile... done
$ make
        cc -DEMACS -DVI -w -c c_sh.c
"c_sh.c", line 735: error #2020: identifier "CLOCK_MONOTONIC" is undefined
        clock_gettime(CLOCK_MONOTONIC, &ts0);
                      ^

1 error detected in the compilation of "c_sh.c".
*** Error exit code 2

Stop.

$ export CC="aCC -Ae"
$ ./configure
checking for C compiler... aCC -Ae
checking if C compiler can compile C99 without -std=c99... yes
checking for -w compiler flag... yes
checking for OS... HP-UX
checking for __dead... no
checking for __dead2... no
checking for asprintf... no
checking for confstr... yes
checking for curses library... curses.h
checking for issetugid... no
checking for pledge... no
checking for reallocarray... no
checking for setresgid... yes
checking for setresuid... yes
checking for sig_t... no
checking for srand_deterministic... no
checking for st_mtim... no
checking for st_mtimespec... no
checking for stravis... no
checking for strlcat... no
checking for strlcpy... no
checking for strtonum... no
checking for strunvis... no
checking for sys_siglist... no
checking for sys_signame... no
checking for timeradd... no
checking for timersub... no
creating Makefile... done
$ make
        aCC -Ae -DEMACS -DVI -w -c alloc.c
        aCC -Ae -DEMACS -DVI -w -c asprintf.c
        aCC -Ae -DEMACS -DVI -w -c c_ksh.c
        aCC -Ae -DEMACS -DVI -w -c c_sh.c
"c_sh.c", line 735: error #2020: identifier "CLOCK_MONOTONIC" is undefined
        clock_gettime(CLOCK_MONOTONIC, &ts0);
                      ^

1 error detected in the compilation of "c_sh.c".
*** Error exit code 2

Stop.

The text was updated successfully, but these errors were encountered:

ibara · 2020-02-05T12:49:15Z

OK. If clock_gettime is an available function but CLOCK_MONOTONIC is not a valid clock_id, then we will have to fall back to CLOCK_REALTIME.

Can you please add the following to portable.h and rebuild and let me know where the next issue is:

#ifndef CLOCK_MONOTONIC
#define CLOCK_MONOTONIC CLOCK_REALTIME
#endif

dumol · 2020-02-07T15:57:38Z

Thanks for the quick feedback! I'm slower, as this beast is hosted remotely and kept mostly stopped because it's a power hog.

Next issue:

$ make
        cc -DEMACS -DVI -w -c c_sh.c
        cc -DEMACS -DVI -w -c c_test.c
        cc -DEMACS -DVI -w -c c_ulimit.c
        cc -DEMACS -DVI -w -c edit.c
"edit.c", line 182: error #2020: identifier "VDISCARD" is undefined
                cb.c_cc[VDISCARD] = _POSIX_VDISABLE;
                        ^

1 error detected in the compilation of "edit.c".
*** Error exit code 2

Stop.

ibara · 2020-02-08T16:05:31Z

No problem. We'll get there eventually.
This error is a new one I haven't seen before from other platforms; I'll try to figure out a solution and get back to you.

ibara · 2020-02-15T14:55:22Z

Looking at what mksh does, it seems like the thing to do is wrap that line, edit.c:182 with

#ifndef __hpux__
cb.c_cc[VDISCARD] = _POSIX_VDISABLE;
#endif

At least for now. We can add a configure check for VDISCARD later.

dumol · 2020-02-19T10:43:55Z

Same error occurs, as the branching doesn't function as expected, it seems.

I guess it's not the right thing to do, but if I use #ifdef __hpux__ instead, I get past this on HP-UX.

Next error would be:

$ make
        cc -DEMACS -DVI -w -c edit.c
        cc -DEMACS -DVI -w -c emacs.c
        cc -DEMACS -DVI -w -c eval.c
        cc -DEMACS -DVI -w -c exec.c
"exec.c", line 12: error #3696-D: cannot open source file "paths.h"
  #include <paths.h>
                    ^

"exec.c", line 712: error #2020: identifier "_PATH_BSHELL" is undefined
                shell = _PATH_BSHELL;
                        ^

2 errors detected in the compilation of "exec.c".
*** Error exit code 2

Stop.

ibara · 2020-02-19T18:55:10Z

Ah. That tells me that hpux isn't the right define to detect HPUX. That's fine; I'll make it a more generic check for VDISCARD.

Could you tell me what the default shell is on the machine? Is it /bin/sh? That's what _PATH_BSHELL is looking for.

ibara · 2020-02-19T18:57:37Z

Though now looking at the code, that definitely needs to change for everyone, so I'll go back to the drawing board :)

ibara · 2020-02-20T01:30:02Z

OK, after some research...
Can you wrap the #include <paths.h> line in #if 0 like so:

#if 0
#include <paths.h>
#endif

Also, in the file portable.h can you add the following somewhere:

#ifndef _PATH_BSHELL
#define _PATH_BSHELL "/bin/sh"
#endif

dumol · 2020-02-22T10:07:28Z

Ah. That tells me that hpux isn't the right define to detect HPUX. That's fine; I'll make it a more generic check for VDISCARD.

OK. For now, I'll keep using the stupid define that doesn't break on HP-UX.

Could you tell me what the default shell is on the machine? Is it /bin/sh? That's what _PATH_BSHELL is looking for.

On HP-UX, /bin is linked to /usr/bin, and the default shell is ~~/sbin/sh~~. Sorry, it actually is:

/sbin/sh for root and other system users
/bin/sh for regular users.

dumol · 2020-02-22T10:21:26Z

OK, after some research...
Can you wrap the #include <paths.h> line in #if 0 like so:
#if 0
#include <paths.h>
#endif
Also, in the file portable.h can you add the following somewhere:
#ifndef _PATH_BSHELL
#define _PATH_BSHELL "/bin/sh"
#endif

With these changes (/bin/sh is actually the default shell for regular users, see correction in my previous comment), I get:

$ make
        cc -DEMACS -DVI -w -c edit.c
        cc -DEMACS -DVI -w -c exec.c
        cc -DEMACS -DVI -w -c expr.c
        cc -DEMACS -DVI -w -c history.c
        cc -DEMACS -DVI -w -c io.c
        cc -DEMACS -DVI -w -c jobs.c
        cc -DEMACS -DVI -w -c lex.c
        cc -DEMACS -DVI -w -c mail.c
        cc -DEMACS -DVI -w -c main.c
"main.c", line 11: error #3696-D: cannot open source file "paths.h"
  #include <paths.h>
                    ^

"main.c", line 111: error #2020: identifier "MAXLOGNAME" is undefined
  char username[_PW_NAME_LEN + 1];
                ^

"main.c", line 202: error #2020: identifier "_PATH_DEFPATH" is undefined
        def_path = _PATH_DEFPATH;
                   ^

3 errors detected in the compilation of "main.c".
*** Error exit code 2

Stop.

I repeat the if 0 trick in main.c and it works, only these remain:

$ make
        cc -DEMACS -DVI -w -c main.c
"main.c", line 113: error #2020: identifier "MAXLOGNAME" is undefined
  char username[_PW_NAME_LEN + 1];
                ^

"main.c", line 204: error #2020: identifier "_PATH_DEFPATH" is undefined
        def_path = _PATH_DEFPATH;
                   ^

2 errors detected in the compilation of "main.c".
*** Error exit code 2

Stop.

ibara · 2020-02-22T23:58:14Z

_PW_NAME_LEN is the maximum length of a valid username on HP-UX. Do you happen to know what that is?

_PATH_DEFPATH is your default $PATH. Whatever echo $PATH is when you log in should suffice here.

ibara · 2020-02-23T00:01:06Z

Also can you check to see if you have any of the defines here: https://github.com/ibara/oksh/blob/master/portable.h#L49
That may also shed some light on what to do for HP-UX.

dumol · 2020-02-28T14:34:25Z

_PW_NAME_LEN is the maximum length of a valid username on HP-UX. Do you happen to know what that is?

By default, only 8 characters are allowed as maximum length for usernames. However, on this particular system, the maximum allowed length has been raised with lugadmin to 256 characters. (We use a buildslave username everywhere.)

_PATH_DEFPATH is your default $PATH. Whatever echo $PATH is when you log in should suffice here.

Sorry, you'll have to spell it out for me, I'm not into C programming.

dumol · 2020-02-28T14:50:48Z

Also can you check to see if you have any of the defines here: https://github.com/ibara/oksh/blob/master/portable.h#L49
That may also shed some light on what to do for HP-UX.

Sorry, don't know how to check for that.

Also, forgot to say above that the default path for a regular HP-UX user seems to be:

/usr/bin:/usr/ccs/bin:/usr/contrib/bin:/usr/contrib/Q4/bin:/opt/perl/bin:/opt/gvsd/bin:/opt/ipf/bin:/opt/nettladm/bin:/opt/fcms/bin:/opt/wbem/bin:/opt/wbem/sbin:/opt/sas/bin:/opt/wli/bin:/opt/graphics/common/bin:/opt/hpvm/bin:/opt/atok/bin:/usr/bin/X11:/usr/contrib/bin/X11:/opt/sec_mgmt/bastille/bin:/opt/drd/bin:/opt/dsau/bin:/opt/dsau/sbin:/opt/resmon/bin:/opt/firefox:/usr/contrib/kwdb/bin:/opt/prm/bin:/opt/propplus/bin:/opt/caliper/bin:/opt/perl_32/bin:/opt/perl_64/bin:/opt/sfm/bin:/opt/swm/bin:/opt/sec_mgmt/spc/bin:/opt/ssh/bin:/opt/swa/bin:/opt/hpsmh/bin:/opt/thunderbird:/opt/sentinel/bin:/opt/langtools/bin:/opt/gwlm/bin:/opt/aCC/bin

No, it's not a joke. This is what a freshly added user has in the default shell with no home dir. If I use useradd -m, the files from /etc/skel are copied and the home dir gets appended to the path through .profile.

All this should be taken with a grain of salt, I'm not really an HP-UX admin, even though I used to look after a couple of HP-UX servers for a while and still have access to start one of them if needed.

ibara · 2020-03-01T00:41:41Z

That's... a lot. Let's try this:

In portable.h, at line 55, can you add the following:

#elif defined(__hpux)
#define _PW_NAME_LEN 8

Then at line 93:

#if defined(__hpux)
#define _PATH_DEFPATH "/usr/bin:/usr/ccs/bin:/usr/contrib/bin"
#endif

dumol · 2020-03-10T14:42:22Z

Thanks! The above solves previous errors, build continues to:

$ make
        cc -DEMACS -DVI -w -c main.c
        cc -DEMACS -DVI -w -c misc.c
        cc -DEMACS -DVI -w -c path.c
        cc -DEMACS -DVI -w -c shf.c
        cc -DEMACS -DVI -w -c syn.c
        cc -DEMACS -DVI -w -c table.c
        cc -DEMACS -DVI -w -c trap.c
        cc -DEMACS -DVI -w -c tree.c
        cc -DEMACS -DVI -w -c tty.c
        cc -DEMACS -DVI -w -c var.c
"/usr/include/term.h", line 55: error #2084: invalid combination of type
          specifiers
        typedef char bool;
                     ^

1 error detected in the compilation of "var.c".
*** Error exit code 2

Stop.

ibara · 2020-03-10T20:45:49Z

Ah! I suspect we are very close.
This looks like a problem with the version of curses installed on your system. Maybe it's an old pre-C99 version of curses. Can you run ./configure --disable-curses and continue building? That should get things moving again. You'll lose the ability to clear the screen with ^L but we can find a way to add that back later.

dumol · 2020-03-13T13:33:39Z

True, build is successful if using ./configure --disable-curses.

However, running the resulting binary gives:

$ ./oksh
Bus error (core dumped)

ibara · 2020-03-14T16:41:55Z

That's a bummer.
Do you have a version of gcc installed? Can you try that? Any version of gcc should do.

dumol · 2020-03-21T10:12:17Z

The system has this package installed with depothelper: http://hpux.connect.org.uk/hppd/hpux/Gnu/gcc-4.2.3/.

Have tried the same patched tree with similar options, but compilation bailes out early on:

bash-4.4$ which gcc
/usr/local/bin/gcc
bash-4.4$ gcc -v
Using built-in specs.
Target: ia64-hp-hpux11.31
Configured with: ../gcc/configure
Thread model: posix
gcc version 4.2.3
bash-4.4$ CC=gcc ./configure --disable-curses
checking for C compiler... gcc
checking if C compiler can compile C99 without -std=c99... yes
checking for -w compiler flag... yes
checking for OS... HP-UX
checking for __dead... no
checking for __dead2... no
checking for asprintf... no
checking for confstr... yes
checking for curses library... disabled by user
oksh will be built without screen clearing support
checking for issetugid... no
checking for pledge... no
checking for reallocarray... no
checking for setresgid... yes
checking for setresuid... yes
checking for sig_t... no
checking for srand_deterministic... no
checking for st_mtim... no
checking for st_mtimespec... no
checking for stravis... no
checking for strlcat... no
checking for strlcpy... no
checking for strtonum... no
checking for strunvis... no
checking for sys_siglist... no
checking for sys_signame... no
checking for timeradd... no
checking for timersub... no
creating Makefile... done
bash-4.4$ CC=gcc gmake
gcc -DEMACS -DVI -w   -c -o edit.o edit.c
edit.c: In function 'x_mode':
edit.c:183: error: 'VDISCARD' undeclared (first use in this function)
edit.c:183: error: (Each undeclared identifier is reported only once
edit.c:183: error: for each function it appears in.)
gmake: *** [<builtin>: edit.o] Error 1

ibara · 2020-03-21T13:01:21Z

Remove that line from edit.c

dumol · 2020-03-28T16:28:48Z

Actually, that line was supposed to be #ifndef __hpux__, but that didn't work with the default compiler, so at the time I did the quick and dirty hack to change it to #ifdef __hpux__.

Apparently, with gcc it does work, so I put #ifndef __hpux__ back. This got me to:

$ gmake
gcc -DEMACS -DVI -w   -c -o edit.o edit.c
gcc -DEMACS -DVI -w   -c -o emacs.o emacs.c
gcc -DEMACS -DVI -w   -c -o eval.o eval.c
gcc -DEMACS -DVI -w   -c -o exec.o exec.c
gcc -DEMACS -DVI -w   -c -o expr.o expr.c
gcc -DEMACS -DVI -w   -c -o history.o history.c
gcc -DEMACS -DVI -w   -c -o io.o io.c
gcc -DEMACS -DVI -w   -c -o jobs.o jobs.c
gcc -DEMACS -DVI -w   -c -o lex.o lex.c
gcc -DEMACS -DVI -w   -c -o mail.o mail.c
gcc -DEMACS -DVI -w   -c -o main.o main.c
gcc -DEMACS -DVI -w   -c -o misc.o misc.c
gcc -DEMACS -DVI -w   -c -o path.o path.c
gcc -DEMACS -DVI -w   -c -o shf.o shf.c
gcc -DEMACS -DVI -w   -c -o syn.o syn.c
gcc -DEMACS -DVI -w   -c -o table.o table.c
gcc -DEMACS -DVI -w   -c -o trap.o trap.c
gcc -DEMACS -DVI -w   -c -o tree.o tree.c
gcc -DEMACS -DVI -w   -c -o tty.o tty.c
gcc -DEMACS -DVI -w   -c -o var.o var.c
gcc -DEMACS -DVI -w   -c -o version.o version.c
gcc -DEMACS -DVI -w   -c -o vi.o vi.c
gcc -DEMACS -DVI -w   -c -o confstr.o confstr.c
gcc -DEMACS -DVI -w   -c -o reallocarray.o reallocarray.c
gcc -DEMACS -DVI -w   -c -o siglist.o siglist.c
gcc -DEMACS -DVI -w   -c -o signame.o signame.c
gcc -DEMACS -DVI -w   -c -o strlcat.o strlcat.c
gcc -DEMACS -DVI -w   -c -o strlcpy.o strlcpy.c
gcc -DEMACS -DVI -w   -c -o strtonum.o strtonum.c
strtonum.c: In function 'strtonum':
strtonum.c:57: error: 'LLONG_MIN' undeclared (first use in this function)
strtonum.c:57: error: (Each undeclared identifier is reported only once
strtonum.c:57: error: for each function it appears in.)
strtonum.c:59: error: 'LLONG_MAX' undeclared (first use in this function)
gmake: *** [<builtin>: strtonum.o] Error 1

ibara · 2020-03-28T21:13:52Z

Ah, that means my configure check for needing -std=c99 is slightly off. I check for long long support but not for the C99 preprocessor definitions of LLONG_MAX and LLONG_MIN.

In any event, that's a real easy fix, so easy I will add it to the file directly. For now, add the following lines in strtonum.c underneath the TOOLARGE define:

#ifndef LLONG_MAX
#define LLONG_MAX 0x7fffffffffffffffLL
#endif

#ifndef LLONG_MIN
#define LLONG_MIN (-0x7fffffffffffffffLL-1)
#endif

Found during #39.

matijaskala · 2020-03-31T00:48:13Z

You could also do without the macros:

			error = INVALID;
-		else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval)
+		else if ((errno == ERANGE && ll < 0) || ll < minval)
			error = TOOSMALL;
-		else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval)
+		else if ((errno == ERANGE && ll > 0) || ll > maxval)
			error = TOOLARGE;

ibara · 2020-03-31T03:00:40Z

I'd prefer not to. If you want to see changes in these files, send them to the OpenBSD tech@ mailing list.

matijaskala · 2020-03-31T03:11:58Z

There is no much sense to add this change to OpenBSD source code since LLONG_MIN and LLONG_MAX are always defined there. I thought this change would be cleaner than explicitly defining those macros since that way we don't assume long long to always have 64 bits.

ibara · 2020-03-31T13:05:12Z

How many 128-bit long long platforms are out there?

Your change also subtly violates the expected return values for strtoll on overflow or underflow. oksh is C99 and so we can and should expect that. Support for non-conforming platforms should be only in the most minimal, non-invasive of approaches.

If there are any 128-bit long long platforms out there and they're not C99 compliant, they're probably not worth supporting.

matijaskala · 2020-03-31T13:20:43Z

C99 compliant strtoll sets errno to ERANGE only when it returns LLONG_MIN or LLONG_MAX. One of those values is positive and one is negative. So the code would remain equivalent, but would not need those macros defined.
But you are right in that very few platforms, if any, have long long of size other than 64.

dumol · 2020-04-04T10:08:24Z

Ah, that means my configure check for needing -std=c99 is slightly off. I check for long long support but not for the C99 preprocessor definitions of LLONG_MAX and LLONG_MIN.

In any event, that's a real easy fix, so easy I will add it to the file directly. For now, add the following lines in strtonum.c underneath the TOOLARGE define:
#ifndef LLONG_MAX
#define LLONG_MAX 0x7fffffffffffffffLL
#endif

#ifndef LLONG_MIN
#define LLONG_MIN (-0x7fffffffffffffffLL-1)
#endif

This worked. Build is successful now:

bash-4.4$ gmake
gcc -DEMACS -DVI -w   -c -o strtonum.o strtonum.c
gcc -DEMACS -DVI -w   -c -o unvis.o unvis.c
gcc -DEMACS -DVI -w   -c -o vis.o vis.c
gcc  -o oksh alloc.o asprintf.o c_ksh.o c_sh.o c_test.o c_ulimit.o edit.o emacs.o eval.o exec.o expr.o history.o io.o jobs.o lex.o mail.o main.o misc.o path.o shf.o syn.o table.o trap.o tree.o tty.o var.o version.o vi.o confstr.o reallocarray.o siglist.o signame.o strlcat.o strlcpy.o strtonum.o unvis.o vis.o

Unfortunately, the resulting binary seems to have the same issue as the one produced by the native compiler:

bash-4.4$ ./oksh
Bus error (core dumped)

Any more ideas to try?

ibara · 2020-04-04T12:56:20Z

I don't. At least, not with access to the machine.
Could you make a tarball of the oksh code you have, with all of the changes we've made, so I can at least keep HP-UX in a buildable shape in case I ever do get access to such a machine and can make the runtime fixes?

ibara · 2020-04-04T19:19:53Z

Ah, forgot my email :)
It's bcallah (AT) openbsd (DOT) org

dumol · 2020-04-11T16:26:06Z

OK, sent.

ibara · 2020-06-24T18:28:30Z

Qemu support for HP-UX has gotten much much better. I was able to get HP-UX 11.11 running on it. And I was able to build a working oksh on it.

I learned that on Itanium, with aCC one should add +DD64 to CFLAGS. I don't know 100% if that will work but that was the advice I was given.

Learned from #39

ibara added a commit that referenced this issue Mar 28, 2020

Add fallback LLONG_MAX and LLONG_MIN defines to strtonum.c

e3fb770

Found during #39.

ibara mentioned this issue Mar 28, 2020

Do not assume signal numbers #40

Merged

roryrjb mentioned this issue May 1, 2020

Build errors on Haiku #42

Closed

ibara self-assigned this Jun 11, 2020

ibara added the porting label Jun 11, 2020

ibara added a commit that referenced this issue Jun 24, 2020

HP-UX support

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Build errors on HP-UX #39

Build errors on HP-UX #39

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