HP-UX Reference (11i v3 07/02) - 1 User Commands A-M (vol 1)

l
ld_pa(1)
PA-RISC Systems Only
ld_pa(1)
Lazy loading can be disable during runtime by setting the
LD_NOLAZYLOAD
environment variable.
+linkersyms
(Kernel virtual environment support only.) Create linker-generated symbols even if
building a shared library. The kernel with virtual environment support is built with
the -b option which by default does not create linker-generated symbols in shared
libraries. See Kernel Virtual Environment Support for more information.
+nobss Pads the data segment with zeros, so that the data segment can be mapped with a sin-
gle call to mmap at runtime. Normally, data segments require one
mmap call for file-
backed storage and a second
mmap call for blank static storage (bss). Use of this
option increases your output file size.
+nodefaultmap
This option tells the linker not to use the default memory map. The user needs to
supply a mapfile through the -k
linker option.
+nodynhash Disables the default linker behavior of the
+gst option to create the .dynhash sec-
tion for executables or shared libraries. Use this option to eliminate generation of
pre-computed hash table information for a library or an executable that is rarely used
with the global symbol table lookup scheme or for which the overhead of storing pre-
computed hash values is too high. This option has no effect when used with the
-r
option.
+noenvvar Instructs the dynamic loader to not look at the LD_LIBRARY_PATH
, SHLIB_PATH
and $ORIGIN environment variables at runtime. This is turned on if ld +compat
is specified. (The dynamic loader, however, uses the LD_PRELOAD environment
variable with the +noenvvar option.) This is turned off by default or if ld +std
is specified. See +compat or +std. Generally, this option is used for secure pro-
grams (e.g. setuid).
+noprocelim_sym symbol [
+noprocelim_sym symbol]...
Do not remove symbol when using dead code elimination (
+Oprocelim ). This
option can be used for hidden symbols as well as exported symbols.
You can specify more than one symbol on the command line with multiple option-
symbol pairs, that is, each symbol you specify must be preceded by the
+noprocelim_sym option.
+nosectionmerge
Used with the -r option to allow procedures to be positioned independently. The
default is to merge all procedures into a single section.
+nosymb symbol
When building a shared library with -B symbolic , causes the linker to exclude the
specified symbol from -B symbolic symbol resolution.
You can specify more than one symbol on the command line with multiple option-
symbol pairs, that is, each symbol you specify must be preceded by the +nosymb
option.
symbol can also be a regular expression that matches multiple symbol names. Regu-
lar expressions are described in regexp(5).
+paddata pagesize
Pads the data segment to a multiple of pagesize with zeros. This can improve page
allocation, thus reduce TLB misses.
+padtext pagesize
Pads the text segment to a multiple of pagesize with zeros. This can improve page
allocation, thus reduce TLB misses.
+pdzero Generates a zero page of 4K bytes at the beginning of the data segment. It also sets
the default starting address of the data segment to 0x8000000000000000. This option
improves performance by reducing TLB misses by allowing the kernel to allocate
bigger data pages.
+stripunwind
Do not output the unwind table. This creates smaller executable sizes. Use this
552 Hewlett-Packard Company − 15 − HP-UX 11i Version 3: February 2007