Based on comments I've added the ability to separately add a compiler
for qemu. CFLAGS & LDFLAGS for qemu now have an option. I've also added
information back to the help screen.
I had not thought much about how the kernel/ directory takes in the
config.mak that is created. Currently I am not using the kernel/
directory .. sorry. Everything works for me though compiling on my
laptop.
Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
diff --git a/configure b/configure
--- a/configure
+++ b/configure
@@ -3,32 +3,37 @@ prefix=/usr/local
prefix=/usr/local
kerneldir=/lib/modules/$(uname -r)/build
want_module=1
-qemu_cc=$(ls /usr/bin/gcc3* /usr/bin/gcc-3* 2>/dev/null | tail -n1)
+cc=gcc
+qemu_cc=
+qemu_cflags=
+qemu_ldflags=
disable_gcc_check=
+cross_prefix=
+arch=`uname -m`
+target_exec=
usage() {
cat <<-EOF
Usage: $0 [options]
Options include:
-
+ --arch=ARCH architecture to compile for ($arch)
+ --cross-prefix=PREFIX prefix for cross compile
+ --cc=CC specify c compiler to compile
+ not valid if used with --cross-prefix
--prefix=PREFIX where to install things ($prefix)
--with-patched-kernel don't use external module
--kerneldir=DIR kernel build directory ($kerneldir)
- --qemu-cc="$qemu_cc" compiler for qemu (needs gcc3.x) ($qemu_cc)
+ --qemu-cc=CC override compiler for qemu (must be gcc-3.x)
+ will override --cc for qemu configuration
+ not valid if used with --cross-prefix
+ --qemu-cflags=CFLAGS CFLAGS to add to qemu configuration
+ --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
--disable-gcc-check don't insist on gcc-3.x
- - this will break running without kvm
+ CAUTION: this will break running without kvm
EOF
exit 1
}
-
-
-# prefer gcc if its version is 3.* ( over a compat-gcc )
-# do it before parsing command line arguments to enable the user
-# to specify a specific gcc he/she likes.
-if gcc -v 2>&1 | grep -q 'gcc *version *3\.[2-4]\.[0-9]'; then
- qemu_cc=gcc
-fi
while [[ "$1" = -* ]]; do
opt="$1"; shift
@@ -47,12 +52,27 @@ while [[ "$1" = -* ]]; do
--with-patched-kernel)
want_module=
;;
+ --cc)
+ cc="$arg"
+ ;;
--qemu-cc)
qemu_cc="$arg"
+ ;;
+ --qemu-cflags)
+ qemu_cflags="$arg"
+ ;;
+ --qemu-ldflags)
+ qemu_ldflags="$arg"
;;
--disable-gcc-check)
disable_gcc_check=1
;;
+ --arch)
+ arch="$arg"
+ ;;
+ --cross-prefix)
+ cross_prefix="$arg"
+ ;;
--help)
usage
;;
@@ -62,39 +82,58 @@ while [[ "$1" = -* ]]; do
esac
done
-if [[ -z "$qemu_cc" ]]; then
- echo "$0: cannot locate gcc 3.x. please install it or specify with
--qemu-cc"
- exit 1
-fi
+#set kenel directory
libkvm_kerneldir="$kerneldir"
if (( want_module )); then
libkvm_kerneldir=$(readlink -f kernel)
fi
-target_cpu() {
- if [[ $(uname -m) = i?86 ]]; then
- echo x86_64
+#if arch is an x86 arch set to i386
+if [[ $arch = i?86 ]]; then
+ arch="i386"
+fi
+
+#see if using a cross compiler or not
+qemu_opts=
+user_opts=
+if [[ -z $cross_prefix ]]; then
+ if [[ -n $qemu_cc ]]; then
+ qemu_opts+=" --cc=$qemu_cc"
else
- uname -m
+ qemu_opts+=" --cc=$cc"
fi
-}
+ user_opts+=" --cc=$cc"
+else
+ qemu_opts+=" --cross-prefix=$cross_prefix"
+ user_opts+=" --cross-prefix=$cross_prefix"
+fi
-(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir")
-(cd qemu; ./configure --target-list=$(target_cpu)-softmmu --cc="$qemu_cc" \
- --disable-kqemu --extra-cflags="-I $PWD/../user" \
- --extra-ldflags="-L $PWD/../user" \
+#set parameters compiling
+if [ "$arch" = "i386" -o "$arch" = "x86_64" ]; then
+ target_exec="x86_64-softmmu"
+ qemu_opts+=" --enable-alsa"
+fi
+
+#configure user dir
+(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \
+ $user_opts --arch="$arch")
+
+#configure qemu
+(cd qemu; ./configure --target-list=$target_exec \
+ --disable-kqemu --extra-cflags="-I $PWD/../user $qemu_cflags" \
+ --extra-ldflags="-L $PWD/../user $qemu_ldflags" \
--enable-kvm --kernel-path="$libkvm_kerneldir" \
- --enable-alsa \
${disable_gcc_check:+"--disable-gcc-check"} \
- --prefix="$prefix"
+ --prefix="$prefix" \
+ $qemu_opts --cpu=$arch
)
-
cat <<EOF > config.mak
+ARCH=$arch
PREFIX=$prefix
KERNELDIR=$kerneldir
WANT_MODULE=$want_module
+CROSS_COMPILE=$cross_prefix
EOF
-
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