Disables multiple reloc sections combining.
@item nocopyreloc
-Disables production of copy relocs.
+Disable linker generated .dynbss variables used in place of variables
+defined in shared libraries. May result in dynamic text relocations.
@item nodefaultlib
Marks the object that the search for dependencies of this object will
@item bndplt
Always generate BND prefix in PLT entries. Supported for Linux/x86_64.
+@item noextern-protected-data
+Don't treat protected data symbol as external when building shared
+library. This option overrides linker backend default. It can be used
+to workaround incorrect relocations against protected data symbols
+generated by compiler. Updates on protected data symbols by another
+module aren't visibile to the resulting shared library. Supported for
+i386 and x86-64.
+
@end table
Other keywords are ignored for Solaris compatibility.
other command-line options). This is the string that would appear
in an @code{OUTPUT_FORMAT} linker script command (@pxref{File Commands}).
+@kindex --print-memory-usage
+@cindex memory usage
+@item --print-memory-usage
+Print used size, total size and used size of memory regions created with
+the @ref{MEMORY} command. This is useful on embedded targets to have a
+quick view of amount of free memory. The format of the output has one
+headline and one line per region. It is both human readable and easily
+parsable by tools. Here is an example of an output:
+
+@smallexample
+Memory region Used Size Region Size %age Used
+ ROM: 256 KB 1 MB 25.00%
+ RAM: 32 B 2 GB 0.00%
+@end smallexample
+
@cindex help
@cindex usage
@kindex --help
Only warn once for each undefined symbol, rather than once per module
which refers to it.
+@kindex --warn-orphan
+@kindex --no-warn-orphan
+@cindex warnings, on orphan sections
+@cindex orphan sections, warnings on
+@item --warn-orphan
+The @option{--warn-orphan} option tells the linker to generate a
+warning message whenever it has to place an orphan section into the
+output file. @xref{Orphan Sections} The @option{--no-warn-orphan}
+option restores the default behaviour of just silently placing these
+sections.
+
@kindex --warn-section-align
@cindex warnings, on section alignment
@cindex section alignment, warnings on
the classic ELF @code{.hash} and new style GNU @code{.gnu.hash}
hash tables. The default is @code{sysv}.
+@kindex --compress-debug-sections=none
+@kindex --compress-debug-sections=zlib
+@kindex --compress-debug-sections=zlib-gnu
+@kindex --compress-debug-sections=zlib-gabi
+@item --compress-debug-sections=none
+@itemx --compress-debug-sections=zlib
+@itemx --compress-debug-sections=zlib-gnu
+@itemx --compress-debug-sections=zlib-gabi
+On ELF platforms , these options control how DWARF debug sections are
+compressed using zlib. @option{--compress-debug-sections=none} doesn't
+compress DWARF debug sections. @option{--compress-debug-sections=zlib}
+and @option{--compress-debug-sections=zlib-gnu} compress DWARF debug
+sections and rename debug section names to begin with @samp{.zdebug}
+instead of @samp{.debug}. @option{--compress-debug-sections=zlib-gabi}
+compresses DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
+
@kindex --reduce-memory-overheads
@item --reduce-memory-overheads
This option reduces memory requirements at ld runtime, at the expense of
Ensure that @var{exp} is non-zero. If it is zero, then exit the linker
with an error code, and print @var{message}.
+Note that assertions are checked before the final stages of linking
+take place. This means that expressions involving symbols PROVIDEd
+inside section definitions will fail if the user has not set values
+for those symbols. The only exception to this rule is PROVIDEd
+symbols that just reference dot. Thus an assertion like this:
+
+@smallexample
+ .stack :
+ @{
+ PROVIDE (__stack = .);
+ PROVIDE (__stack_size = 0x100);
+ ASSERT ((__stack > (_end + __stack_size)), "Error: No room left for the stack");
+ @}
+@end smallexample
+
+will fail if @code{__stack_size} is not defined elsewhere. Symbols
+PROVIDEd outside of section definitions are evaluated earlier, so they
+can be used inside ASSERTions. Thus:
+
+@smallexample
+ PROVIDE (__stack_size = 0x100);
+ .stack :
+ @{
+ PROVIDE (__stack = .);
+ ASSERT ((__stack > (_end + __stack_size)), "Error: No room left for the stack");
+ @}
+@end smallexample
+
+will work.
+
@item EXTERN(@var{symbol} @var{symbol} @dots{})
@kindex EXTERN
@cindex undefined symbol in linker script
@cindex BE8
@kindex --be8
The @samp{--be8} switch instructs @command{ld} to generate BE8 format
-executables. This option is only valid when linking big-endian objects.
-The resulting image will contain big-endian data and little-endian code.
+executables. This option is only valid when linking big-endian
+objects - ie ones which have been assembled with the @option{-EB}
+option. The resulting image will contain big-endian data and
+little-endian code.
@cindex TARGET1
@kindex --target1-rel
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