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| author | Bill Wendling <isanbard@gmail.com> | 2012-08-17 18:33:14 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2012-08-17 18:33:14 +0000 |
| commit | 32811bef956e0fae4329e6515420d85f7e510660 (patch) | |
| tree | 13100e97e25505d643790bc4cb43c45fee52a4b8 /docs/LangRef.html | |
| parent | d5118c8f78a05ad0b426b6032138d1d934b77c8d (diff) | |
| download | external_llvm-32811bef956e0fae4329e6515420d85f7e510660.zip external_llvm-32811bef956e0fae4329e6515420d85f7e510660.tar.gz external_llvm-32811bef956e0fae4329e6515420d85f7e510660.tar.bz2 | |
Change the `linker_private_weak_def_auto' linkage to `linkonce_odr_auto_hide' to
make it more consistent with its intended semantics.
The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.
The intended semantic is more like the `linkonce_odr' linkage type.
Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.
Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162114 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/LangRef.html')
| -rw-r--r-- | docs/LangRef.html | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index 0ea83dd..810fce5 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -25,7 +25,6 @@ <li><a href="#linkage_private">'<tt>private</tt>' Linkage</a></li> <li><a href="#linkage_linker_private">'<tt>linker_private</tt>' Linkage</a></li> <li><a href="#linkage_linker_private_weak">'<tt>linker_private_weak</tt>' Linkage</a></li> - <li><a href="#linkage_linker_private_weak_def_auto">'<tt>linker_private_weak_def_auto</tt>' Linkage</a></li> <li><a href="#linkage_internal">'<tt>internal</tt>' Linkage</a></li> <li><a href="#linkage_available_externally">'<tt>available_externally</tt>' Linkage</a></li> <li><a href="#linkage_linkonce">'<tt>linkonce</tt>' Linkage</a></li> @@ -34,6 +33,7 @@ <li><a href="#linkage_appending">'<tt>appending</tt>' Linkage</a></li> <li><a href="#linkage_externweak">'<tt>extern_weak</tt>' Linkage</a></li> <li><a href="#linkage_linkonce_odr">'<tt>linkonce_odr</tt>' Linkage</a></li> + <li><a href="#linkage_linkonce_odr_auto_hide">'<tt>linkonce_odr_auto_hide</tt>' Linkage</a></li> <li><a href="#linkage_weak">'<tt>weak_odr</tt>' Linkage</a></li> <li><a href="#linkage_external">'<tt>external</tt>' Linkage</a></li> <li><a href="#linkage_dllimport">'<tt>dllimport</tt>' Linkage</a></li> @@ -576,15 +576,6 @@ define i32 @main() { <i>; i32()* </i> linker. The symbols are removed by the linker from the final linked image (executable or dynamic library).</dd> - <dt><tt><b><a name="linkage_linker_private_weak_def_auto">linker_private_weak_def_auto</a></b></tt></dt> - <dd>Similar to "<tt>linker_private_weak</tt>", but it's known that the address - of the object is not taken. For instance, functions that had an inline - definition, but the compiler decided not to inline it. Note, - unlike <tt>linker_private</tt> and <tt>linker_private_weak</tt>, - <tt>linker_private_weak_def_auto</tt> may have only <tt>default</tt> - visibility. The symbols are removed by the linker from the final linked - image (executable or dynamic library).</dd> - <dt><tt><b><a name="linkage_internal">internal</a></b></tt></dt> <dd>Similar to private, but the value shows as a local symbol (<tt>STB_LOCAL</tt> in the case of ELF) in the object file. This @@ -653,6 +644,14 @@ define i32 @main() { <i>; i32()* </i> be merged with equivalent globals. These linkage types are otherwise the same as their non-<tt>odr</tt> versions.</dd> + <dt><tt><b><a name="linkage_linkonce_odr_auto_hide">linkonce_odr_auto_hide</a></b></tt></dt> + <dd>Similar to "<tt>linkonce_odr</tt>", but nothing in the translation unit + takes the address of this definition. For instance, functions that had an + inline definition, but the compiler decided not to inline it. + <tt>linkonce_odr_auto_hide</tt> may have only <tt>default</tt> visibility. + The symbols are removed by the linker from the final linked image + (executable or dynamic library).</dd> + <dt><tt><b><a name="linkage_external">external</a></b></tt></dt> <dd>If none of the above identifiers are used, the global is externally visible, meaning that it participates in linkage and can be used to |