https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68034
Bug ID: 68034
Summary: Print warning when memset is optimized out
Product: gcc
Version: 4.8.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: bugzi...@poradnik-webmastera.com
Target Milestone: ---
It is recommended to clear memory area storing sensitive data (e.g. passwords)
when they are no longer needed. When memset is used for this, it may lead to
subtle bug because gcc may optimize it out. Please add new warning which will
be printed when this happens. It will tell developers that they either have
security problem in code or there is some dead code which can be removed.
