HP-UX Reference (11i v2 04/09) - 1 User Commands A-M (vol 1)

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ld_ia(1) ld_ia(1)

(For Itanium(R)-based Systems)

The behavior of normal executables does not match the behavior of executables built with

+compat.For

any

setuid or setgid programs, dld disables any dynamic library searching through environment

variables, SHLIB_PATH and LD_LIBRARY_PATH

. If a library only exists in the directory speciﬁed in

SHLIB_PATH (or LD_LIBRARY_PATH

), you get the runtime error "library not found" if the program is a

setuid or setgid program (that is, uid not equal to euid or gid not equal to egid) and it depends on

that library. dld uses the dynamic path lookup (with

SHLIB_PATH) only if the following conditions are

satisﬁed:

getuid () == geteuid () && getgid () == getegid ()

. That is, if the uid or

gid does not match its effective counterpart,

dld searches only the recorded library path. As a result, dld

does not check the

SHLIB_PATH which causes the runtime error "library not found".

AUTHOR

ld was developed by AT&T, the University of California, Berkeley, and HP.

FILES

/usr/lib/hpux32/lib*

32-bit system archive and shared libraries

/usr/lib/hpux64/lib*

64-bit system archive and shared libraries

a.out output ﬁle

/usr/lib/hpux32/dld.so

32-bit dynamic loader

/usr/lib/hpux64/dld.so

64-bit dynamic loader

/usr/ccs/lib/hpux32/crt0.o

32-bit run-time startup ﬁle

/usr/ccs/lib/hpux64/crt0.o

64-bit run-time startup ﬁle

/usr/lib/hpux32/milli.a

32-bit millicode library automatically searched by ld

/usr/lib/hpux64/milli.a

64-bit millicode library automatically searched by ld

/usr/lib/hpux64/millikern.a

64-bit millicode library automatically searched by ld for

embedded systems

/usr/lib/nls/msg/$LANG/ld.cat

message catalog

/var/tmp/ld* temporary ﬁles

flow.data ﬁle containing proﬁle data generated by running an instru-

mented executable

/usr/ccs/bin/fdp program for creating the procedure link order from a proﬁle

database ﬁle created by an instrumented executable; forked

by the

-P option

/opt/langtools/bin/sin

static instrumentor to instrument an executable or a shared

library. It is invoked if you use the

-I option.