s the '-d' command-line option:
     to make 'ld' assign space to common symbols even if a relocatable
     output file is specified ('-r').

'INHIBIT_COMMON_ALLOCATION'
     This command has the same effect as the '--no-define-common'
     command-line option: to make 'ld' omit the assignment of addresses
     to common symbols even for a non-relocatable output file.

'FORCE_GROUP_ALLOCATION'
     This command has the same effect as the '--force-group-allocation'
     command-line option: to make 'ld' place section group members like
     normal input sections, and to delete the section groups even if a
     relocatable output file is specified ('-r').

'INSERT [ AFTER | BEFORE ] OUTPUT_SECTION'
     This command is typically used in a script specified by '-T' to
     augment the default 'SECTIONS' with, for example, overlays.  It
     inserts all prior linker script statements after (or before)
     OUTPUT_SECTION, and also causes '-T' to not override the default
     linker script.  The exact insertion point is as for orphan
     sections.  *Note Location Counter::.  The insertion happens after
     the linker has mapped input sections to output sections.  Prior to
     the insertion, since '-T' scripts are parsed before the default
     linker script, statements in the '-T' script occur before the
     default linker script statements in the internal linker
     representation of the script.  In particular, input section
     assignments will be made to '-T' output sections before those in
     the default script.  Here is an example of how a '-T' script using
     'INSERT' might look:

          SECTIONS
          {
            OVERLAY :
            {
              .ov1 { ov1*(.text) }
              .ov2 { ov2*(.text) }
            }
          }
          INSERT AFTER .text;

'NOCROSSREFS(SECTION SECTION ...)'
     This command may be used to tell 'ld' to issue an error about any
     references among certain output sections.

     In certain types of programs, particularly on embedded systems when
     using overlays, when one section is loaded into memory, another
     section will not be.  Any direct references between the two
     sections would be errors.  For example, it would be an error if
     code in one section called a function defined in the other section.

     The 'NOCROSSREFS' command takes a list of output section names.  If
     'ld' detects any cross references between the sections, it reports
     an error and returns a non-zero exit status.  Note that the
     'NOCROSSREFS' command uses output section names, not input section
     names.

'NOCROSSREFS_TO(TOSECTION FROMSECTION ...)'
     This command may be used to tell 'ld' to issue an error about any
     references to one section from a list of other sections.

     The 'NOCROSSREFS' command is useful when ensuring that two or more
     output sections are entirely independent but there are situations
     where a one-way dependency is needed.  For example, in a multi-core
     application there may be shared code that can be called from each
     core but for safety must never call back.

     The 'NOCROSSREFS_TO' command takes a list of output section names.
     The first section can not be referenced from any of the other
     sections.  If 'ld' detects any references to the first section from
     any of the other sections, it reports an error and returns a
     non-zero exit status.  Note that the 'NOCROSSREFS_TO' command uses
     output section names, not input section names.

'OUTPUT_ARCH(BFDARCH)'
     Specify a particular output machine architecture.  The argument is
     one of the names used by the BFD library (*note BFD::).  You can
     see the architecture of an object file by using the 'objdump'
     program with the '-f' option.

'LD_FEATURE(STRING)'
     This command may be used to modify 'ld' behavior.  If STRING is
     '"SANE_EXPR"' then absolute symbols and numbers in a script are
     simply treated as numbers everywhere.  *Note Expression Section::.