http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52885
Bug #: 52885
Summary: Request: Add -aslr switch that invokes -fPIE/-pie or
-fPIC/-shared as appropriate
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: other
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: noloa...@gmail.com
When writing makefiles or using automake and friends, its currently not
possible to to supply 'generic' set of flags via CFLAGS (or CXXFLAGS) and
produce position independent code and utilize layout randomization.
For example the following will properly setup makefiles for programs, but not
shared objects:
$ configure CFLAGS="-Wall -Wextra -Wconversion -fPIE -pie
-Wno-unused-parameter -Wformat=2 -Wformat-security
-fstack-protector-all -Wstrict-overflow
-Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now"
Others have also felt the discomfort:
http://lists.fedoraproject.org/pipermail/devel-announce/2011-August/000821.html.
Please provide a switch that allows us to use position independent code and
layout randomization that works on both programs and shared objects. I suggest
the switch "-aslr" or "-ASLR".
