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[DOC,OBVIOUS] Document default value for use-after-scope-direct-emission-threshold

Message ID alpine.LSU.2.20.1702180946350.2410@anthias.pfeifer.com
State New
Headers show

Commit Message

Gerald Pfeifer Feb. 18, 2017, 8:48 a.m. UTC 
On Fri, 3 Feb 2017, Martin Liška wrote:
>> Yes, but...

>> (I'm still not quite sure what this option does, and whether we 
>> could say "poison and unpoison it", for example?  Can you advise?)
> I'm sending enhancement of that. Basically: direct poisoning = emitting
> instructions that touch shadow memory vs. runtime callbacks = function
> that does that :)
>
> I welcome help with that.

How about the following, Martin, which tries to combine our two
sets of changes (and adds some editorial changes)?

Let me know whether this looks fine to you, and I'll commit.

Gerald


2017-02-05  Gerald Pfeifer  <gerald@pfeifer.com>
	    Martin Liška  <mliska@suse.cz>

	* doc/invoke.texi (use-after-scope-direct-emission-threshold):
	Fix typos and grammar, use active voice, and clarify.

Comments

Martin Liška Feb. 20, 2017, 3:01 p.m. UTC | #1 
On 02/18/2017 09:48 AM, Gerald Pfeifer wrote:
> Let me know whether this looks fine to you, and I'll commit.
> 
> Gerald

I'm fine with that! Thanks.

Martin
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Patch

Index: doc/invoke.texi
===================================================================
--- doc/invoke.texi	(revision 245559)
+++ doc/invoke.texi	(working copy)
@@ -10478,9 +10478,9 @@ 
 @option{--param asan-instrumentation-with-call-threshold=0}.
 
 @item use-after-scope-direct-emission-threshold
-If size of a local variable in bytes is smaller or equal to this number,
-direct instruction emission is utilized to poison and unpoison local variables.
-Default value in 256.
+If the size of a local variable in bytes is smaller or equal to this
+number, directly poison (or unpoison) shadow memory instead of using
+run-time callbacks.  The default value is 256.
 
 @item chkp-max-ctor-size
 Static constructors generated by Pointer Bounds Checker may become very