HP-UX Reference (11i v2 03/08) - 1 User Commands A-M (vol 1)

l
ld(1) ld(1)
Since -B nonfatal suppresses messages about unresolved symbols, also
specify -B verbose to display those messages.
restricted
Causes the search for a symbol definition to be restricted to those symbols that
were visible when the library was loaded.
symbolic
Used only when building a shared library. This option causes all references in
a shared library to be resolved internally if possible. Such internally-resolved
symbols are still externally visible. By default (without the
-B symbolic
option), references to a symbol in a shared library are resolved to the most
visible definition. The first load module (a.out or shared library) that exports
that symbol contains the most visible definition. More than one load module
can define and export the same symbol. References to a symbol in a shared
library can be resolved to a definition in another shared library even if that
symbol is defined in the shared library. You can use this option to enforce that
all references in the shared library use their own definitions, if defined in the
shared library. See the +e and +ee options for more information about using
-B symbolic with those options.
verbose
Display verbose messages when binding symbols. This is the default except
when -B nonfatal is specified. In that case, -B verbose must be expli-
citly specified to get verbose messages.
Use the
+help option or see the HP-UX Linker and Libraries User’s Guide manual
for more information on the uses of binding modes.
-C n This option is ignored and generates a warning message.
-D offset Set (in hexadecimal) the starting address of the data segment. This option is useful
with kernel and embedded applications. The default address for 64-bit mode is
0x6000000000000000 and the default address for 32-bit mode is 0x40000000.
-E Mark all symbols defined by a program for export to shared libraries. In a
+com-
pat mode link, ld marks only those symbols that are actually referenced by a
shared library seen at link time. In a +std link, all symbols are exported by
default, so -E is not necessary to make symbols visible. However, it has an addi-
tional side effect of identifying all exported symbols as necessary, so that they will
not be removed when using dead code elimination (+Oprocelim).
-Fl Force load the archive library. Equivalent to +forceload.
-Fw This option is ignored and generates a warning.
-Fz This option is accepted and ignored.
-G Strip all unloadable data from the output file. This option is typically used to strip
debug information and is incompatible with the +ild option.
Note: Use of the
-G option might impair or prevent the use of a symbolic debugger
on the resulting program.
-I Instrument the code to collect profile information upon execution. When an instru-
mented program is executed, a profile database file is output (by default, named
flow.data). The profile data gathered during program execution can be used in con-
junction with the -P option. The default instrumenter is the dynamic instru-
menter /opt/langtools/bin/caliper, but the +instrumenter
option can
be used to invoke the static instrumenter
/opt/langtools/bin/sin instead.
This option should not be used with the
-P, -O, +ild,or+O options.
NOTE: If using +instrumenter sin, the recommended method to instrument
your programs is to use your compiler’s +I option, rather than the ld -I option. If
you invoke the linker directly, you must pass the -u__sin_core__,
-u__sin_init, and -lsin options to the linker. If you have both an instru-
mented shared library and an instrumented shared executable that you want to link
with that library, you must include the -h__sin_core__ and
-h__sin_lookup_ibt options in addition to the -u options. If using the default
Section 1−−434 Hewlett-Packard Company − 5 − HP-UX 11i Version 2: August 2003