From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 2/3] gnuchess: disable -O2 and -O3 for ARM cortex-M cpus
Date: Thu, 10 Jan 2019 18:59:54 +0100 [thread overview]
Message-ID: <20190110175955.31565-2-fontaine.fabrice@gmail.com> (raw)
In-Reply-To: <20190110175955.31565-1-fontaine.fabrice@gmail.com>
When building with -O2 (or -O3), link fails on:
/home/rclinux/rc-buildroot-test/scripts/instance-0/output/host/bin/arm-linux-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -Wl,-elf2flt -static -Wl,-elf2flt -static -Wl,-elf2flt -static -o gnuchess main.o components.o frontend/libfrontend.a adapter/libadapter.a engine/libengine.a -lreadline -lncurses
ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context
ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context
ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context
ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context
ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context
ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context
ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context
To fix this, replace -O2 or -O3 by -Os
Fixes:
- http://autobuild.buildroot.org/results/7918757b255ed41609609d2083c2d8904ff3136e
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
package/gnuchess/gnuchess.mk | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/package/gnuchess/gnuchess.mk b/package/gnuchess/gnuchess.mk
index 0abdab5ba5..b2fbcff864 100644
--- a/package/gnuchess/gnuchess.mk
+++ b/package/gnuchess/gnuchess.mk
@@ -13,4 +13,11 @@ GNUCHESS_DEPENDENCIES = host-flex flex
GNUCHESS_DEPENDENCIES += $(if $(BR2_PACKAGE_READLINE),readline) \
$(TARGET_NLS_DEPENDENCIES)
+# Workaround a build issue with -O2 or -03 for ARM Cortex-M cpus
+ifeq ($(BR2_ARM_CPU_ARMV7M):$(BR2_OPTIMIZE_2)$(BR2_OPTIMIZE_3),y:y)
+GNUCHESS_CONF_ENV += \
+ CFLAGS="$(TARGET_CFLAGS) -Os" \
+ CXXFLAGS="$(TARGET_CXXFLAGS) -Os"
+endif
+
$(eval $(autotools-package))
--
2.14.1
next prev parent reply other threads:[~2019-01-10 17:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 17:59 [Buildroot] [PATCH 1/3] gnuchess: fix license Fabrice Fontaine
2019-01-10 17:59 ` Fabrice Fontaine [this message]
2019-01-10 19:59 ` [Buildroot] [PATCH 2/3] gnuchess: disable -O2 and -O3 for ARM cortex-M cpus Thomas Petazzoni
2019-01-12 17:53 ` Fabrice Fontaine
2019-01-10 17:59 ` [Buildroot] [PATCH 3/3] gnuchess: bump to version 6.2.5 Fabrice Fontaine
2019-01-12 16:56 ` Thomas Petazzoni
2019-01-10 20:41 ` [Buildroot] [PATCH 1/3] gnuchess: fix license Thomas Petazzoni
2019-01-11 10:48 ` Peter Korsgaard
2019-01-24 15:28 ` Peter Korsgaard
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