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| author | Steve Ellcey <sje@cup.hp.com> | 2009-01-20 19:14:06 +0000 |
|---|---|---|
| committer | Steve Ellcey <sje@gcc.gnu.org> | 2009-01-20 19:14:06 +0000 |
| commit | 4b84f3de0228f00e3ef46f4db4971b7d24d2bda7 (patch) | |
| tree | 92103a441107f5a9d404ee75d5e0f452885c2fdc /gcc | |
| parent | 872fbc1ac7263fdac13c50b1e7547a6fa9c637b2 (diff) | |
| download | gcc-4b84f3de0228f00e3ef46f4db4971b7d24d2bda7.zip gcc-4b84f3de0228f00e3ef46f4db4971b7d24d2bda7.tar.gz gcc-4b84f3de0228f00e3ef46f4db4971b7d24d2bda7.tar.bz2 | |
re PR target/30687 (undocumented attributes on ia64)
PR target/30687
* doc/extend.texi (syscall_linkage): New.
(version_id): Modify.
From-SVN: r143525
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/doc/extend.texi | 12 |
2 files changed, 16 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e4bb5c7..8e90a9d3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-01-20 Steve Ellcey <sje@cup.hp.com> + + PR target/30687 + * doc/extend.texi (syscall_linkage): New. + (version_id): Modify. + 2009-01-20 Andrew Pinski <andrew_pinski@playstation.sony.com> Richard Guenther <rguenther@suse.de> diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 5a7e2d8..264e88a 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -2885,6 +2885,14 @@ On the Intel 386, the @code{stdcall} attribute causes the compiler to assume that the called function will pop off the stack space used to pass arguments, unless it takes a variable number of arguments. +@item syscall_linkage +@cindex @code{syscall_linkage} attribute +This attribute is used to modify the IA64 calling convention by marking +all input registers as live at all function exits. This makes it possible +to restart a system call after an interrupt without having to save/restore +the input registers. This also prevents kernel data from leaking into +application code. + @item target @cindex @code{target} function attribute The @code{target} attribute is used to specify that a function is to @@ -3085,8 +3093,8 @@ 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 +@cindex @code{version_id} attribute +This IA64 HP-UX 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. |