* [Bug runtime/12196] New: avoid varargs in script-invokable runtime
@ 2010-11-05 18:19 fche at redhat dot com
2010-11-08 20:02 ` [Bug runtime/12196] " fche at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: fche at redhat dot com @ 2010-11-05 18:19 UTC (permalink / raw)
To: systemtap
http://sourceware.org/bugzilla/show_bug.cgi?id=12196
Summary: avoid varargs in script-invokable runtime
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap@sources.redhat.com
ReportedBy: fche@redhat.com
Functions such as printf() translate to varargs calls upon the runtime.
GCC doesn't protect us against stack overflows well (see GCC PR41633 e.g.).
It doesn't have to be this way. We can use the per-probe-invocation context[]
structure as temporary space. Let's expand printf() to an array of parameters
in the context -- like script-function calls. Let's have printf()s store a
flag in the context afterwards, to let us know whether the __stp_print_flush()
thing at the conclusion of the probe handler is at all necessary.
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* [Bug runtime/12196] avoid varargs in script-invokable runtime
2010-11-05 18:19 [Bug runtime/12196] New: avoid varargs in script-invokable runtime fche at redhat dot com
@ 2010-11-08 20:02 ` fche at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: fche at redhat dot com @ 2010-11-08 20:02 UTC (permalink / raw)
To: systemtap
http://sourceware.org/bugzilla/show_bug.cgi?id=12196
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jistone at redhat dot com
--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> 2010-11-08 20:01:36 UTC ---
*** Bug 10942 has been marked as a duplicate of this bug. ***
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2010-11-05 18:19 [Bug runtime/12196] New: avoid varargs in script-invokable runtime fche at redhat dot com
2010-11-08 20:02 ` [Bug runtime/12196] " fche at redhat dot com
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