6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-05-13 01:15:32 +00:00
Code Issues Projects Releases Wiki Activity

Update docs for ssp and sspreq function attributes.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59203 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2008-11-13 01:02:51 +00:00
parent e9e6bdf27f
commit 31359bab86
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
docs/LangRef.html
View File

@ -985,6 +985,18 @@ caller functions. It may dereference pointer arguments and read state that may
be set in the caller. A readonly function always returns the same value (or be set in the caller. A readonly function always returns the same value (or
throws the same exception) when called with the same set of arguments and global throws the same exception) when called with the same set of arguments and global
state.</dd> state.</dd>
<dt><tt><a name="ssp">ssp</a></tt></dt>
<dd>This attribute indicates that the function should emit a stack smashing
protector. It is in the form of a "canary"&mdash;a random value placed on the
stack before the local variables that's checked upon return from the function to
see if it has been overwritten. A heuristic is used to determine if a function
needs stack protectors or not.</dd>
<dt><tt>ssp-req</tt></dt>
<dd>This attribute indicates that the function should <em>always</em> emit a
stack smashing protector. This overrides the <tt><a href="#ssp">ssp</a></tt>
function attribute.</dd>
</dl> </dl>
</div> </div>