mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 00:37:13 +07:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
54 lines
1.4 KiB
Bash
Executable File
54 lines
1.4 KiB
Bash
Executable File
#!/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
|