Solaris Transition Guide

Libraries

This release is compliant with the System V Interface Definition, Third Edition (SVID 3). Programs written with the SunOS release 4.1 System V libraries are easy to port to this release. Programs using the SunOS release 4 BSD C library require more effort.

Reorganized Libraries

Several functions and groups of functions were moved into different libraries. This can cause references to these functions to be flagged as undefined when compiling a SunOS release 4 application in the Solaris 7 environment.

After a compile, check the man page of any functions flagged as undefined. The synopsis lists both the -l linker option and any include files that you need to resolve the symbol.

Shared Libraries

Shared libraries do not currently support minor version numbers.

Files for shared initialized data (.sa) are no longer required; no .sa files are provided with the Solaris 7 software.

Resource Limits

In previous releases, static table allocations were used for resources such as file descriptors and active processes. These resources are now dynamically allocated, so they are limited by the physical memory available. Table 16-3 shows the resource limits.

Table 16-3 Resource Limits


Configuration	Limitation
`RLIMIT_CORE`	Maximum size of core file (in bytes) that can be created by a process
`RLIMIT_CPU`	Maximum amount of CPU time (in seconds) that a process can use
`RLIMIT_DATA`	Maximum size of a process's heap (in bytes)
`RLIMIT_FSIZE`	Maximum size of a file (in bytes) that can be created by a process
`RLIMIT_NOFILE`	One more than the maximum number of file descriptors that can be created by a process
`RLIMIT_VMEM`	Maximum size (in bytes) to which a process's mapped address space may grow
`RLIMIT_STACK`	Maximum size (in bytes) of a process's stack

Note -

Any shared objects that need the networking libraries must be dynamically linked. The networking libraries require libdl.so.1. An archive library is not available.

Table 16-4 shows SunOS release 4 and Solaris 7 libraries and their locations.

Table 16-4 Comparison of Library Locations


Library Name	SunOS release 4 Directory	Solaris 7 Directory
`libbsdmalloc.a`	`/usr/lib`	`/usr/lib`
`libc.a`	`/usr/lib` and `/usr/5lib`	`/usr/lib`
`libc.so.1.7`	`/usr/lib`	`/usr/lib`
`libc.so.2.7`	`/usr/5lib`	`/usr/lib`
`libc_p.a`	`/usr/5lib`	Not available
`libcurses.a`	`/usr/lib` and `/usr/5lib`	`/usr/ucblib` and `/usr/ccs/lib`
`libcurses_p.a`	`/usr/5lib`	Not available
`libdbm.a`	`/usr/lib`	`/usr/ucblib`
`libdl.so.1.0`	`/usr/lib`	`/usr/lib`
`libg.a`	`/usr/lib`	Not available
`libkvm.a`	`/usr/lib`	Not available
`libkvm.so.0.3`	`/usr/lib`	`/usr/lib`
`libl.a`	`/usr/lib`	`/usr/ccs/lib`
`libln.a`	`/usr/lib`	Not available
`liblwp.a`	`/usr/lib`	Not available
`libm.a`	`/usr/lib`	`/usr/lib` and `/usr/lib/libp`
`libmp.a`	`/usr/lib`	`/usr/lib`
`libnbio.a`	`/usr/lib`	Not available
`libnsl.a`	`/usr/lib`	`/usr/lib`
`libpixrect.a`	`/usr/lib`	Not available
`libpixrect.so.2.14`	`/usr/lib`	Not available
`libposix.a`	`/usr/lib`	Not available
`libresolv.a`	`/usr/lib`	`/usr/lib`
`librpcsvc.a`	`/usr/lib`	`/usr/lib`
`libsuntool.so.0.54`	`/usr/lib`	Not available
`libsunwindow.so.0.55`	`/usr/lib`	Not available
`libsvidm.a`	`/usr/5lib`	Not available
`libsvidm_p.a`	`/usr/5lib`	Not available
`libtermcap.a`	`/usr/lib` and `/usr/5lib`	`/usr/ucblib` and `/usr/ccs/lib`
`libtermlib.a`	`/usr/lib` and `/usr/5lib`	`/usr/ccs/lib`
`libxgl.so.1.1`	`/usr/lib`	`/opt/SUNWits/` `Graphics-sw/xgl/lib`
`libxpg.a`	`/usr/xpg2lib`	Not available
`liby.a`	`/usr/lib` and `/usr/5lib`	`/usr/ccs/lib`