History

Linux => OpenSolaris Porting Code Fixes

This page lists various common issues encountered when porting Linux code to Nexenta. It aims to collect the various common issues faced when moving packages from Ubuntu to NCP.

Please note some packages are not even meant to build or run under OpenSolaris (ex.: some Linux kernel-related ones). Also note that support for (Open)Solaris improved lately in the Free Software world, so sometimes a fix already exists in some newer version and no porting effort is actually needed from your part.

Patch resources

Existing Solaris patches for various packages can be found at the below sources:

Development articles

Tutorial on building packages part1, and part2
Adding SMF Support to a package.

Common code patches/changes

Changing Dependencies

(these changes would go to the Depends: field of debian/control in)

at -> at | sunwcsu
pax -> pax | sunwcsu

sys_errlist[errno]

This way of accessing errors is deprecated. Convert these calls to

strerror(errno)

isfinite()

Add the following to offending cpp file.

#if defined(sun)
 #ifndef isfinite
  #define isfinite(val) (val <= std::numeric_limits::max())
 #endif
#endif

alloca

Add

#include <alloca.h>

to the file.

readdir_r

Add

-D_POSIX_PTHREAD_SEMANTICS

to CFLAGS in the configure.in file.

undefined reference to libintl_gettext

Application needs to be linked with libintl. Either configure script or debian/rules needs to be fixed. Defining

LDFLAGS=-lintl

in debian/rules is easier but fixing configure script to correctly 'detect' libintl is the cleanest.

apt-get install package : dpkg: error processing * : trying to overwrite file

This occurs when a package tries to overwrite a file that has already been installed to the system by another package. Only one package may install a file to the system. To workaround this, you can:-

Modify the "install" target in the Makefile of the package to remove the file from being installed

You can remove this file after build in debian/rules add the following lines:

install/packagename::rm debian/packagebuilddirname/path/to/file

rm -f debian/packagebuilddirname/path/to/file

Use dpkg-divert: http://www.debian-administration.org/articles/118

Dpatch error: unable to patch 01somepatch: No permission

This usually occurs when the patched in the debian/patches directory are missing the executable flag. Workaround is to go into the patches directory and

chmod +x *patch

implicit declaration of function 'asprintf'

Either add

-D_GNU_SOURCE

as a parameter to gcc in the Makefile/configure.in or add a

#define _GNU_SOURCE

in the offending C file

u_int32_t not defined (or u_int16_t not defined or u_int64_t not defined)

Add the following to the offending file. Usually, you'll need to add the below lines for all three variants.

#ifndef u_int32_t
  #define u_int32_t uint32_t
#endif

error: 'NAME_MAX' undeclared (first use in this function)

If you want the maximum length of a full path name, and not just the length of the basename, you can use PATH_MAX.

strerror_r : cannot convert int to char *

Background here .. this function is defined differently in POSIX and GNU. You'd need to port from first method to second:

char *result = strerror_r(errnum, buf, bufsize);

#ifndef __sun__
       char *result = strerror_r(errnum, buf, bufsize);
#else
      strerror_r(errnum, buf, bufsize);
      char *result = buf;
#endif

winsize not defined.

This would have been in sys/ioctl.h on GNU/Linux, but is found in sys/termios.h in Solaris. Add below to offending line

#ifdef __sun__
 #include 
#endif

error: 'struct dirent' has no member named 'd_type' DT_DIR undeclared (first use this function)

The struct dirent definition in Solaris does not contain the d_type field. You would need to make the changes as follows

  if (de->d_type == DT_DIR)
  {
    return 0;
  }

becomes

  struct stat s; /*include sys/stat.h if necessary */
  ..
  ..
  stat(de->d_name, &s);

  if (s.st_mode & S_IFDIR)
  {
    return 0;
  }

FNM_CASEFOLD not defined

Add the following at the beginning of the file

#ifndef FNM_CASEFOLD
 #define FNM_CASEFOLD  (1 << 4)
#endif

Compiler or options invalid for pre-UNIX 03 X/Open applications and pre-2001 POSIX applications

Remove the

-std=c9x

-std=c99

option in CFLAGS, either in configure.ac, configure or Makefile

alternatively, add

-D_XPG6

undefined reference to error_print_progname' undefined reference toerror'

add

LDFLAGS += -lrecode

to debian/rules **error: #error "Compiler or options invalid for pre-UNIX 03 X/Open applications and pre-2001 POSIX applications"** Multiple reasons.. try removing

--std=c9x

flag to _configure_ if present. **error: paths.h: No such file or directory** Todo: explain **error: mntent.h: No such file or directory** On Linux, mntent.h is in /usr/include and on Solaris it is in /usr/include/sys as part of the sunwhea package. change

#include <mntent.h>

#ifdef __sun__
 #include <sys/mntent.h>
#else
 #include <mntent.h>
#endif

cfmakeraw not declared in scope

See Cfmakeraw

openpty() not defined / not in scope

This isn't available on Solaris. Example of porting.

 if (openpty(&master, &slave, line, NULL, NULL) == -1) {
  return -1;
}

becomes

#ifdef __sun __
 char * slavename;
 //extern char *ptsname(int *);
 master = open("/dev/ptmx", O_RDWR);
 if (master == -1) return -1;
 grantpt(master); unlockpt(master);

 slavename = ptsname(master);
 slave = open(slavename, O_RDWR);

#else
 if (openpty(&master, &slave, line, NULL, NULL) == -1) {
  return -1;
 } 
#endif

Mixing GNU and SUN ld (the linker) in a build

In NCP 2.0 we use GNU ld (/usr/bin/ld) by default. Traditionally on Solaris even when GCC is used, the Solaris ld (/usr/csc/bin/ld) is used. You should be careful to ensure that only GNU ld is used. A few important things to watch for in configure/configure.in and Makefile/Makefile.am/Makefile.in

*LD=; change to this LD=/usr/bin/ld or just comment it out *LDFLAGS=-G; change -G to this to -shared

switch_gethostbyname undefined reference

This was used around SunOS 5.2, because gethostbyname was unavailable then. Find the #ifdef test which defines gethostbyname to this symbol, and correct it (by commenting out or changing the #ifdef test).

LOCK_SH undeclared

Add the below to header file/source file

#ifdef __sun__
 #define LOCK_SH 1 /* shared lock */ 
 #define LOCK_EX 2 /* exclusive lock */ 
 #define LOCK_NB 4 /* don't block when locking */ 
 #define LOCK_UN 8 /* unlock */ 
#endif

error: declaration of 'iob' as array of references or the code line has defined String:std stdout or stderr

Rename stdout/stderr as mystdout/mystderr throughout the function/program

MSG_NOSIGNAL undeclared

Add below to header/source file.

#ifndef MSG_NOSIGNAL
 #define MSG_NOSIGNAL 0
#endif

vasprintf was not declared

Add below to the file.

extern int asprintf(char **, const char *, ...);
extern int vasprintf(char **, const char *, __va_list);

This will be resolved in newer version of stdio.h. http://opensolaris.org/os/community/on/flag-days/pages/2009011401/

error: too few arguments to function ctime_r

Add

-D_POSIX_PTHREAD_SEMANTICS

to the Makefile.

Test failed during compilation

Prevent test suite from building. You may need to patch Makefile.in. For example: aptitude package.

Also available in: HTML TXT

Linux => OpenSolaris Porting Code Fixes

Patch resources

Development articles

Common code patches/changes

Wiki