ld_pa.1 (2010 09)

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ld_pa(1) PA-RISC Systems Only
ld_pa(1)
Using the +Ofastaccess option in the presence of debug information generates
a warning message and can cause corruption of the debug information. Avoid using
+Ofastaccess with the -g option.
This option is accepted but ignored by the 64-bit
ld.
+O[no]procelim
Enable [disable] the elimination of procedures and data that are not referenced by
the application. The default is +Onoprocelim.
Procedure and data elimination can occur at any optimization level, i ncluding level
0. The elimination occurs on a per section basis; the section is removed only if all
procedures/data in the section are unreferenced. For more details refer to the
+help option or the HP-UX Linker and Libraries User’s Guide manual. This
option is incompatible with the
+ild option.
Note that compilers may set
+Oprocelim for higher optimization levels; refer to
compiler documentation for detail.
+Oreusedir=dir
Specify the name of the directory to use as the reuse repository for the object code
reuse feature. This directory holds the compiled object files for reuse. dir can be an
absolute or relative path to directory where you invoked the linker. The
+Oreusedir option shortens link time by not recompiling intermediate object code
to object code when using +O4 or profile-based optimization.
+Oselectivepercent
n
Instructs the interprocedural optimizer driver to pass the first n percent of the
object files to the high level optimizer for interprocedural optimizations such as
inlining.
+Oselectivesize size
Instructs the interprocedural optimizer driver to pass the first k routines to the high
level optimizer for interprocedural optimization where the size of k routines are
approaching but less than size.
+OselectiveO3
Instructs the interprocedural optimizer driver to compile the routines not included
in the +O4 list to be compiled at +O3.
+Ostaticprediction
Meaningful only on PA-RISC 2.0 architecture, this option sets the branch prediction
bit in the output executable file’s auxiliary header.
PA-RISC 32-Bit Options
-A name This option specifies incremental loading. Linking is arranged so that the resulting
object can be read into an already executing program. The argument name specifies
a file whose symbol table provides the basis for defining additional symbols. Only
newly linked material is entered into the text and data portions of a.out, but the
new symbol table reflects all symbols defined before and after the incremental load.
Also, the
-R option can be used in conjunction with -A, which allows the newly
linked segment to commence at the corresponding address. The default starting
address is the old value of _end.
The
-A option is incompatible with -r and -b.
Also note that a program that dynamically loads code with
ld -A cannot use
shared libraries.
See the
+help option or the HP-UX Linker and Libraries User’s Guide manual for
a description of this option.
-C n Set the maximum parameter-checking level to n. The default maximum is 3. See
the language manuals for the meanings of the parameter-checking level.
-Fw Don’t emit unwind tables. Do not use this option if your compiler or tools require
unwind tables.
12 Hewlett-Packard Company − 12 − HP-UX 11i Version 3: September 2010