diff options
| author | Gustavo Zacarias <gustavo@zacarias.com.ar> | 2016-05-05 21:08:27 -0300 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-05-06 15:50:02 +0200 |
| commit | 5500211e201f84b6e2ce0dd5ff3013fb92628860 (patch) | |
| tree | c20f6e9db48434e17c5ebb90e88f5056df2ff244 | |
| parent | f80735ce39165762f33e06d2a54c1d1db5206e12 (diff) | |
xserver_xorg-server: use -O2 build optimization level
The xorg server is somewhat sensitive to certain gcc versions combined
with -Os, particularly for ARM and MIPS, typically in the form of the
following symptom/error:
(EE) Segmentation fault at address 0x0
(EE)
Fatal server error:
(EE) Caught signal 11 (Segmentation fault). Server aborting
Force -O2 to work around this problem - for a target rootfs that uses
X11 the tradeoff is minimal since a sample/test image for qemu vexpress
with X11 + xinit + xterm + twm + xclock + gtk2 with demos is 60+ MB.
And it's less complicated than trying to find all of the bad
combinations.
Fixes bug #8436.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
[Thomas: add comment in .mk file, add reference to bug.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| -rw-r--r-- | package/x11r7/xserver_xorg-server/xserver_xorg-server.mk | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/package/x11r7/xserver_xorg-server/xserver_xorg-server.mk b/package/x11r7/xserver_xorg-server/xserver_xorg-server.mk index 617bcbcf0..31f6d0dba 100644 --- a/package/x11r7/xserver_xorg-server/xserver_xorg-server.mk +++ b/package/x11r7/xserver_xorg-server/xserver_xorg-server.mk @@ -56,13 +56,16 @@ XSERVER_XORG_SERVER_DEPENDENCIES = \ mcookie \ host-pkgconf +# We force -O2 regardless of the optimization level chosen by the +# user, as the X.org server is known to trigger some compiler bugs at +# -Os on several architectures. XSERVER_XORG_SERVER_CONF_OPTS = \ --disable-config-hal \ --disable-xnest \ --disable-xephyr \ --disable-dmx \ --with-builder-addr=buildroot@buildroot.org \ - CFLAGS="$(TARGET_CFLAGS) -I$(STAGING_DIR)/usr/include/pixman-1" \ + CFLAGS="$(TARGET_CFLAGS) -I$(STAGING_DIR)/usr/include/pixman-1 -O2" \ --with-fontrootdir=/usr/share/fonts/X11/ \ --$(if $(BR2_PACKAGE_XSERVER_XORG_SERVER_XVFB),en,dis)able-xvfb |