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(ld.info)HPPA ELF32

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`ld' and HPPA 32-bit ELF support
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   When generating a shared library, `ld' will by default generate
import stubs suitable for use with a single sub-space application.  The
`--multi-subspace' switch causes `ld' to generate export stubs, and
different (larger) import stubs suitable for use with multiple
sub-spaces.

   Long branch stubs and import/export stubs are placed by `ld' in stub
sections located between groups of input sections.  `--stub-group-size'
specifies the maximum size of a group of input sections handled by one
stub section.  Since branch offsets are signed, a stub section may
serve two groups of input sections, one group before the stub section,
and one group after it.  However, when using conditional branches that
require stubs, it may be better (for branch prediction) that stub
sections only serve one group of input sections.  A negative value for
`N' chooses this scheme, ensuring that branches to stubs always use a
negative offset.  Two special values of `N' are recognized, `1' and
`-1'.  These both instruct `ld' to automatically size input section
groups for the branch types detected, with the same behaviour regarding
stub placement as other positive or negative values of `N' respectively.

   Note that `--stub-group-size' does not split input sections.  A
single input section larger than the group size specified will of course
create a larger group (of one section).  If input sections are too
large, it may not be possible for a branch to reach its stub.