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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/ia64/scripts/toolchain-flags
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/ia64/scripts/toolchain-flags')
-rwxr-xr-xkernel/arch/ia64/scripts/toolchain-flags53
1 files changed, 53 insertions, 0 deletions
diff --git a/kernel/arch/ia64/scripts/toolchain-flags b/kernel/arch/ia64/scripts/toolchain-flags
new file mode 100755
index 000000000..3f0c2adac
--- /dev/null
+++ b/kernel/arch/ia64/scripts/toolchain-flags
@@ -0,0 +1,53 @@
+#!/bin/sh
+#
+# Check whether linker can handle cross-segment @segrel():
+#
+CPPFLAGS=""
+CC=$1
+OBJDUMP=$2
+READELF=$3
+dir=$(dirname $0)
+tmp=${TMPDIR:-/tmp}
+out=$tmp/out$$
+
+# Check whether cross-segment segment-relative relocs work fine. We need
+# that for building the gate DSO:
+
+$CC -nostdlib -static -Wl,-T$dir/check-segrel.lds $dir/check-segrel.S -o $out
+res=$($OBJDUMP --full --section .rodata $out | fgrep 000 | cut -f3 -d' ')
+rm -f $out
+if [ $res != 00000a00 ]; then
+ CPPFLAGS="$CPPFLAGS -DHAVE_BUGGY_SEGREL"
+ cat >&2 <<EOF
+warning: your linker cannot handle cross-segment segment-relative relocations.
+ please upgrade to a newer version (it is safe to use this linker, but
+ the kernel will be bigger than strictly necessary).
+EOF
+fi
+
+# Check whether .align inside a function works as expected.
+
+$CC -c $dir/check-text-align.S -o $out
+$READELF -u $out | fgrep -q 'prologue(rlen=12)'
+res=$?
+rm -f $out
+if [ $res -eq 0 ]; then
+ CPPFLAGS="$CPPFLAGS -DHAVE_WORKING_TEXT_ALIGN"
+fi
+
+if ! $CC -c $dir/check-model.c -o $out 2>&1 | grep __model__ | grep -q attrib
+then
+ CPPFLAGS="$CPPFLAGS -DHAVE_MODEL_SMALL_ATTRIBUTE"
+fi
+rm -f $out
+
+# Check whether assembler supports .serialize.{data,instruction} directive.
+
+$CC -c $dir/check-serialize.S -o $out 2>/dev/null
+res=$?
+rm -f $out
+if [ $res -eq 0 ]; then
+ CPPFLAGS="$CPPFLAGS -DHAVE_SERIALIZE_DIRECTIVE"
+fi
+
+echo $CPPFLAGS