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build: Use $(AS) for optionrom explicitly 

For clang before 3.5, -fno-integrated-as does not exist,
so the workaround in 5f6f0e27fb fails to build.

Use clang's default assembler for linux-user/safe-syscall.S,
and explicitly change to use the system assembler for the
option roms.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Richard Henderson 2016-07-07 21:49:36 -07:00
parent 4aa3f4dd5b
commit cdbd727c20
3 changed files with 7 additions and 8 deletions
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10
configure vendored
View File

@ -368,6 +368,7 @@ else
fi
ar="${AR-${cross_prefix}ar}"
as="${AS-${cross_prefix}as}"
ccas="${CCAS-$cc}"
cpp="${CPP-$cc -E}"
objcopy="${OBJCOPY-${cross_prefix}objcopy}"
@ -4490,13 +4491,6 @@ if test "$fortify_source" != "no"; then
fi
fi
#################################################
# clang does not support the 16-bit assembly for roms
if echo | $ccas -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
ccas="$ccas -fno-integrated-as"
fi
##########################################
# check if struct fsxattr is available via linux/fs.h
@ -5515,6 +5509,7 @@ echo "CXX=$cxx" >> $config_host_mak
echo "OBJCC=$objcc" >> $config_host_mak
echo "AR=$ar" >> $config_host_mak
echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
echo "AS=$as" >> $config_host_mak
echo "CCAS=$ccas" >> $config_host_mak
echo "CPP=$cpp" >> $config_host_mak
echo "OBJCOPY=$objcopy" >> $config_host_mak
@ -5988,6 +5983,7 @@ for rom in seabios vgabios ; do
config_mak=roms/$rom/config.mak
echo "# Automatically generated by configure - do not modify" > $config_mak
echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
echo "AS=$as" >> $config_mak
echo "CCAS=$ccas" >> $config_mak
echo "CC=$cc" >> $config_mak
echo "BCC=bcc" >> $config_mak

3
pc-bios/optionrom/Makefile
View File

@ -20,6 +20,9 @@ build-all: multiboot.bin linuxboot.bin kvmvapic.bin
# suppress auto-removal of intermediate files
.SECONDARY:
%.o: %.S
$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o - $< | $(AS) $(ASFLAGS) -o $@," AS $(TARGET_DIR)$@")
%.img: %.o
$(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -Ttext 0 -e _start -s -o $@ $<," Building $(TARGET_DIR)$@")

2
rules.mak
View File

@ -69,7 +69,7 @@ LINK = $(call quiet-command, $(LINKPROG) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o
$(version-obj-y) $(call extract-libs,$1) $(LIBS)," LINK $(TARGET_DIR)$@")
%.o: %.S
$(call quiet-command,$(CCAS) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," AS $(TARGET_DIR)$@")
$(call quiet-command,$(CCAS) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CCAS $(TARGET_DIR)$@")
%.o: %.cc
$(call quiet-command,$(CXX) $(QEMU_INCLUDES) $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) -c -o $@ $<," CXX $(TARGET_DIR)$@")