ld_ia.1 (2011 09)

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ld_ia(1) Integrity Systems Only
ld_ia(1)
For 32-bit mode: crt0.o is found at
/usr/ccs/lib/hpux32/crt0.o
.
For 64-bit mode:
crt0.o is found at
/usr/ccs/lib/hpux64/crt0.o
.
You should include
crt0.o in a
-noshared link.
For 32-bit mode: the dynamic loader is found at
/usr/lib/hpux32/dld.so
.
For 64-bit mode: the dynamic loader is found at
/usr/lib/hpux64/dld.so
.
The dynamic loader attaches each required library to the process and resolves all symbolic references
between the program and its libraries.
NOTE: For information on linking secure programs with shared libraries, see the Security Restrictions
section below.
The text segment of a shared library is shared among all processes that use the library; each process
using the library receives its own copy of the data segment. If
pxdb -s on has been run on the execut-
able that loads the library, the text segment of a shared library is mapped privately for each process run-
ning the executable.
ld recursively examines the dependencies of shared libraries used by a program
that was created by ld.Ifld
does not find a supporting shared library at the path recorded in the
dependency list of a shared library, and if the dependency is the result of an -l argument used when the
shared library was created,
ld searchs all the directories that it would search for a library that was
specified with -l (see -L
and LPATH).
Options
-a search Specify whether shared or archive libraries are searched with the -l option. The
value of search should be one of archive, shared, archive_shared
,
shared_archive,or
default. This option can appear more than once, inter-
spersed among
-l options, to control the searching for each library. The default is
to use the shared version of a library if one is available, or the archive version if
not.
If either
archive or shared is active, only the specified library type is accepted.
If
archive_shared is active, the archive form is preferred, but the shared form
is allowed.
If
shared_archive is active, the shared form is preferred but the archive form is
allowed.
To create a statically-bound program, use the
-noshared option rather than -a
archive.
-b Create a shared library rather than a normal executable file. Object files processed
with this option must contain position-independent code (PIC), generated by
default by the compiler.
See the discussion of position-independent code in cc(1), aCC(1), f90(1), as(1), and
Linker and Libraries Online User Guide .
-c filename Read ld options from a file. Each line contains zero or more arguments separated
by white space. Each line in the file, including the last line, must end with a new-
line character. A # character implies that the rest of the line is a comment. To
escape a # character, use the sequence ##.
-d Force definition of "common" symbols; that is, assign addresses and sizes, for -r
output. This option also strips COMDAT information from the -r output.
-dynamic This option is the default. Instructs the linker to produce a dynamically linked exe-
cutable (a program which can use shared libraries). This option is the complement
of -noshared.
If no shared libraries are linked in, the linker builds a dynamically linked execut-
able. However, in PA32-bit mode using the
+compat option, if no shared libraries
are linked in, the linker builds a statically bound executable (or archive bound exe-
cutable).
For dynamically linked executables, the dynamic loader is involved in the process of
loading the executable, regardless of whether it was linked with shared libraries.
For
-noshared (or statically bound) programs, control does not pass to the
dynamic loader. See dld.so (5) for more information.
2 Hewlett-Packard Company − 2 − HP-UX 11i Version 3: September 2011