Commit Graph

4 Commits

Author SHA1 Message Date
Peter Hartmann
c8c8e1990c BlackBerry mkspecs: optimize linker flags
* relro makes some sections read-only before giving control to the
program;
* now resolves all symbols when the program is started and allows for
 the GOT being marked read-only to prevent it from being overwritten.

These settings have been used internally for device builds already.

Change-Id: I9f62fffe618c75748e2357d1686289c23c5dbee5
Reviewed-by: Greg Bentz <gbentz@rim.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2012-11-26 15:11:59 +01:00
Peter Hartmann
44b1c5dde2 BlackBerry mkspecs: tell compiler the specific ARM version (cortex-a9)
... so the compiler knows which instructions to generate and can
optimize for the specific CPU.
All BlackBerry platforms are Cortex-A9 compatible.

Change-Id: I3fd22e63af12f704365f494bbb7138963b4c4ec7
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2012-11-23 11:59:50 +01:00
Peter Hartmann
80f6d7862c Blackberry mkspecs: Refine compiler options
stack-protector-strong gives performance benefits over
stack-protector-all and is still checking more than -stack-protector,
so seems to be a good middle way and we want to use it when it is
there.

The -shared option for the compiler (not the linker) prevents a
RIM internal version of qcc from forcing -fPIE, and should not harm
in general when set.

In addition, add a method "compilerSupportsFlag" for Windows as is
present in the Unix configure script.

Change-Id: Iba300e9cb82f34043e7b36f8e45287a1aed2a1a5
Original-patch-by: Greg Bentz
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2012-10-01 10:22:06 +02:00
Sean Harmer
219ba05b2a QNX: Move qpa-based mkspecs out of the unsupported directory
RIM is committed to supporting Qt on its platforms and the port works
well.

Change-Id: Id6bfea2dbc178800adad89d436ce31c40d3eb652
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-09-04 18:17:23 +02:00