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| author | Nick Clifton <nickc@redhat.com> | 2000-01-03 18:34:24 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2000-01-03 18:34:24 +0000 |
| commit | 2e13b764859730a6bf359cd73b7e7acd4d95e071 (patch) | |
| tree | c25da3c0c3ee5c438aeeae100b149e1598232980 /gas/doc | |
| parent | 7a13edea08cb46d90e1512c72540de7d0b1411a5 (diff) | |
| download | gdb-2e13b764859730a6bf359cd73b7e7acd4d95e071.zip gdb-2e13b764859730a6bf359cd73b7e7acd4d95e071.tar.gz gdb-2e13b764859730a6bf359cd73b7e7acd4d95e071.tar.bz2 | |
ELF visibility patch from Martin Loewis
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/as.texinfo | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index 330a8b2..eb5aee8 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -3195,6 +3195,9 @@ Some machine configurations provide additional directives. * Type:: @code{.type @var{int}} * Val:: @code{.val @var{addr}} @end ifset +@ifset ELF +* Visibility:: @code{.internal @var{name}, .hidden @var{name}, .protected @var{name}} +@end ifset * Uleb128:: @code{.uleb128 @var{expressions}} * Word:: @code{.word @var{expressions}} @@ -4756,6 +4759,40 @@ configured for @code{b.out}, it accepts this directive but ignores it. compact, variable length representation of numbers used by the DWARF symbolic debugging format. @xref{Sleb128,@code{.sleb128}}. +@ifset ELF +@node Visibility +@section @code{.internal}, @code{.hidden}, @code{.protected} +@cindex @code{internal} directive +@cindex @code{hidden} directive +@cindex @code{protected} directive +@cindex symbol visibility + +These directives can be used to set the visibility of a specified symbol. By +default a symbol's visibility is set by its binding (local, global or weak), +but these directives can be used to override that. + +A visibility of @code{protected} means that any references to the symbol from +within the component that defines the symbol must be resolved to the definition +in that component, even if a definition in another component would normally +preempt this. + +A visibility of @code{hidden} means that the symbol is not visible to other +components. Such a symbol is always considered to be protected as well. + +A visibility of @code{internal} is the same as a visibility of @code{hidden}, +except that some extra, processor specific processing must also be performed +upon the symbol. + +For ELF targets, the directives are used like this: + +@smallexample +.internal @var{name} +.hidden @var{name} +.protected @var{name} +@end smallexample + +@end ifset + @node Word @section @code{.word @var{expressions}} |