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| author | Jakub Jelinek <jakub@redhat.com> | 2002-02-26 22:17:22 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-02-26 22:17:22 +0100 |
| commit | 47bd70b56aa4ccc10fd0e90a7fae4c94d991bb30 (patch) | |
| tree | bf177b7375ac3fceb1bd51f1f20b2ff845e3fbba /gcc/doc | |
| parent | 6d73371a68e805956981592bdc2a631acaab2a33 (diff) | |
| download | gcc-47bd70b56aa4ccc10fd0e90a7fae4c94d991bb30.tar.gz | |
attribs.c (c_common_attribute_table): Add visibility.
* attribs.c (c_common_attribute_table): Add visibility.
(handle_visibility_attribute): New function.
* varasm.c (assemble_visibility): New function.
* output.h (assemble_visibility): Add prototype.
* tree.h (MODULE_LOCAL_P): Define.
* crtstuff.c (__dso_handle): Use visibility attribute.
* config/i386/i386.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG
for MODULE_LOCAL_P symbols too.
* config/ia64/ia64.c (ia64_encode_section_info): Handle
MODULE_LOCAL_P symbols the same way as local symbols.
Add SDATA_NAME_FLAG_CHAR even if decl was explicitely forced
into .sdata/.sbss by the user.
* doc/extend.texi (Function Attributes): Document visibility
attribute.
* gcc.dg/ia64-visibility-1.c: New test.
From-SVN: r50061
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index cc4e25d0feb..f9870e779cf 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -2198,7 +2198,7 @@ The @code{alias} attribute causes the declaration to be emitted as an alias for another symbol, which must be specified. For instance, @smallexample -void __f () @{ /* do something */; @} +void __f () @{ /* @r{Do something.} */; @} void f () __attribute__ ((weak, alias ("__f"))); @end smallexample @@ -2207,6 +2207,19 @@ mangled name for the target must be used. Not all target machines support this attribute. +@item visibility ("@var{visibility_type}") +@cindex @code{visibility} attribute +The @code{visibility} attribute on ELF targets causes the declaration +to be emitted with hidden, protected or internal visibility. + +@smallexample +void __attribute__ ((visibility ("protected"))) +f () @{ /* @r{Do something.} */; @} +int i __attribute__ ((visibility ("hidden"))); +@end smallexample + +Not all ELF targets support this attribute. + @item regparm (@var{number}) @cindex functions that are passed arguments in registers on the 386 On the Intel 386, the @code{regparm} attribute causes the compiler to |