target.h (globalize_decl_name): New.

[gcc.git] / gcc / doc / extend.texi

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 7e9aa116bfb259c854d29bd6a570ac2808e4895b..8bbb3169402387c25e60616cc7977db6139d2c26 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -1,5 +1,5 @@
 @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1996, 1998, 1999, 2000,
-@c 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+@c 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
 @c This is part of the GCC manual.
 @c For copying conditions, see the file gcc.texi.
@@ -1965,6 +1965,9 @@ void f () __attribute__ ((interrupt ("IRQ")));
 
 Permissible values for this parameter are: IRQ, FIQ, SWI, ABORT and UNDEF@.
 
+On ARMv7-M the interrupt type is ignored, and the attribute means the function
+may be called with a word aligned stack pointer.
+
 @item interrupt_handler
 @cindex interrupt handler functions on the Blackfin, m68k, H8/300 and SH processors
 Use this attribute on the Blackfin, m68k, H8/300, H8/300H, H8S, and SH to
@@ -2363,6 +2366,19 @@ for the function even if it appears that the function is not referenced.
 This is useful, for example, when the function is referenced only in
 inline assembly.
 
+@item version_id
+@cindex @code{version_id} attribute on IA64 HP-UX
+This attribute, attached to a global variable or function, renames a
+symbol to contain a version string, thus allowing for function level
+versioning.  HP-UX system header files may use version level functioning
+for some system calls.
+
+@smallexample
+extern int foo () __attribute__((version_id ("20040821")));
+@end smallexample
+
+Calls to @var{foo} will be mapped to calls to @var{foo@{20040821@}}.
+
 @item visibility ("@var{visibility_type}")
 @cindex @code{visibility} attribute
 This attribute affects the linkage of the declaration to which it is attached.