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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 2bb9b2f..3b37aba 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -3742,13 +3742,19 @@ foo_v1 (void) Will produce a @code{.symver foo_v1, foo@@VERS_1} directive in the assembler output. -It's an error to define multiple version of a given symbol. In such case -an alias can be used. +One can also define multiple version for a given symbol. @smallexample -__attribute__ ((__symver__ ("foo@@VERS_2"))) -__attribute__ ((alias ("foo_v1"))) -int symver_foo_v1 (void); +__attribute__ ((__symver__ ("foo@@VERS_2"), ("foo@@VERS_3"))) +int symver_foo_v1 (void) +@{ +@} + +__attribute__ ((__symver__ ("bar@@VERS_2")))) +__attribute__ ((__symver__ ("bar@@VERS_3")))) +int symver_bar_v1 (void) +@{ +@} @end smallexample This example creates an alias of @code{foo_v1} with symbol name |