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X-Received-From: 2a00:1450:400c:c09::242 Subject: [Qemu-devel] [PATCH v4 03/49] configure: add support for --cross-cc-FOO X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" This allows us to specify cross compilers for our guests. This is useful for building test images/programs. Currently we re-run the compile test for each target. I couldn't think of a way to cache the value for a given arch without getting messier configure code. The cross compiler for the guest is visible to each target as CROSS_CC_GUEST in config-target.mak. Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson --- v3 - --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit... - --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*} - add remaining target_compiler definitions v4 - also set cross_cc_$cpu=$host_cc - try a non-static build if static fails - use write_c_skeleton - add doc string in help --- configure | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) -- 2.17.0 diff --git a/configure b/configure index 33681f16dd..b21e6ce6ac 100755 --- a/configure +++ b/configure @@ -458,6 +458,13 @@ vxhs="" libxml2="" docker="no" +# cross compilers defaults, can be overridden with --cross-cc-ARCH +cross_cc_aarch64="aarch64-linux-gnu-gcc" +cross_cc_arm="arm-linux-gnueabihf-gcc" +cross_cc_powerpc="powerpc-linux-gnu-gcc" + +enabled_cross_compilers="" + supported_cpu="no" supported_os="no" bogus_os="no" @@ -488,6 +495,11 @@ for opt do ;; --disable-debug-info) debug_info="no" ;; + --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option" + ;; + --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*} + eval "cross_cc_${cc_arch}=\$optarg" + ;; esac done # OS specific @@ -676,30 +688,37 @@ case "$cpu" in ppc|ppc64|s390|s390x|sparc64|x32) cpu="$cpu" supported_cpu="yes" + eval "cross_cc_${cpu}=\$host_cc" ;; i386|i486|i586|i686|i86pc|BePC) cpu="i386" supported_cpu="yes" + cross_cc_i386=$host_cc ;; x86_64|amd64) cpu="x86_64" supported_cpu="yes" + cross_cc_x86_64=$host_cc ;; armv*b|armv*l|arm) cpu="arm" supported_cpu="yes" + cross_cc_arm=$host_cc ;; aarch64) cpu="aarch64" supported_cpu="yes" + cross_cc_aarch64=$host_cc ;; mips*) cpu="mips" supported_cpu="yes" + cross_cc_mips=$host_cc ;; sparc|sun4[cdmuv]) cpu="sparc" supported_cpu="yes" + cross_cc_sparc=$host_cc ;; *) # This will result in either an error or falling back to TCI later @@ -917,6 +936,8 @@ for opt do ;; --disable-debug-info) ;; + --cross-cc-*) + ;; --enable-modules) modules="yes" ;; @@ -1501,6 +1522,7 @@ Advanced options (experts only): --extra-cflags=CFLAGS append extra C compiler flags QEMU_CFLAGS --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS --extra-ldflags=LDFLAGS append extra linker flags LDFLAGS + --cross-cc-ARCH=CC use compiler when building ARCH guest test cases --make=MAKE use specified make [$make] --install=INSTALL use specified install [$install] --python=PYTHON use specified python [$python] @@ -6811,6 +6833,9 @@ case "$target" in ;; esac +target_compiler="" +target_compiler_static="" + mkdir -p $target_dir echo "# Automatically generated by configure - do not modify" > $config_target_mak @@ -6826,19 +6851,23 @@ TARGET_ABI_DIR="" case "$target_name" in i386) gdb_xml_files="i386-32bit.xml i386-32bit-core.xml i386-32bit-sse.xml" + target_compiler=$cross_cc_i386 ;; x86_64) TARGET_BASE_ARCH=i386 gdb_xml_files="i386-64bit.xml i386-64bit-core.xml i386-64bit-sse.xml" + target_compiler=$cross_cc_x86_64 ;; alpha) mttcg="yes" + target_compiler=$cross_cc_alpha ;; arm|armeb) TARGET_ARCH=arm bflt="yes" mttcg="yes" gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml" + target_compiler=$cross_cc_arm ;; aarch64|aarch64_be) TARGET_ARCH=aarch64 @@ -6846,58 +6875,73 @@ case "$target_name" in bflt="yes" mttcg="yes" gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml" + target_compiler=$cross_cc_aarch64 ;; cris) + target_compiler=$cross_cc_cris ;; hppa) mttcg="yes" + target_compiler=$cross_cc_hppa ;; lm32) + target_compiler=$cross_cc_lm32 ;; m68k) bflt="yes" gdb_xml_files="cf-core.xml cf-fp.xml m68k-fp.xml" + target_compiler=$cross_cc_m68k ;; microblaze|microblazeel) TARGET_ARCH=microblaze bflt="yes" + target_compiler=$cross_cc_microblaze ;; mips|mipsel) TARGET_ARCH=mips + target_compiler=$cross_cc_mips echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak ;; mipsn32|mipsn32el) TARGET_ARCH=mips64 TARGET_BASE_ARCH=mips + target_compiler=$cross_cc_mipsn32 echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak echo "TARGET_ABI32=y" >> $config_target_mak ;; mips64|mips64el) TARGET_ARCH=mips64 TARGET_BASE_ARCH=mips + target_compiler=$cross_cc_mips64 echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak ;; moxie) + target_compiler=$cross_cc_moxie ;; nios2) + target_compiler=$cross_cc_nios2 ;; or1k) + target_compiler=$cross_cc_or1k TARGET_ARCH=openrisc TARGET_BASE_ARCH=openrisc ;; ppc) gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml" + target_compiler=$cross_cc_powerpc ;; ppcemb) TARGET_BASE_ARCH=ppc TARGET_ABI_DIR=ppc gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml" + target_compiler=$cross_cc_ppcemb ;; ppc64) TARGET_BASE_ARCH=ppc TARGET_ABI_DIR=ppc mttcg=yes gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml" + target_compiler=$cross_cc_ppc64 ;; ppc64le) TARGET_ARCH=ppc64 @@ -6905,6 +6949,7 @@ case "$target_name" in TARGET_ABI_DIR=ppc mttcg=yes gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml" + target_compiler=$cross_cc_ppc64le ;; ppc64abi32) TARGET_ARCH=ppc64 @@ -6912,45 +6957,57 @@ case "$target_name" in TARGET_ABI_DIR=ppc echo "TARGET_ABI32=y" >> $config_target_mak gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml" + target_compiler=$cross_cc_ppc64abi32 ;; riscv32) TARGET_BASE_ARCH=riscv TARGET_ABI_DIR=riscv mttcg=yes + target_compiler=$cross_cc_riscv32 ;; riscv64) TARGET_BASE_ARCH=riscv TARGET_ABI_DIR=riscv mttcg=yes + target_compiler=$cross_cc_riscv64 ;; sh4|sh4eb) TARGET_ARCH=sh4 bflt="yes" + target_compiler=$cross_cc_sh4 ;; sparc) + target_compiler=$cross_cc_sparc ;; sparc64) TARGET_BASE_ARCH=sparc + target_compiler=$cross_cc_sparc64 ;; sparc32plus) TARGET_ARCH=sparc64 TARGET_BASE_ARCH=sparc TARGET_ABI_DIR=sparc + target_compiler=$cross_cc_sparc32plus echo "TARGET_ABI32=y" >> $config_target_mak ;; s390x) mttcg=yes gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml" + target_compiler=$cross_cc_s390x ;; tilegx) + target_compiler=$cross_cc_tilegx ;; tricore) + target_compiler=$cross_cc_tricore ;; unicore32) + target_compiler=$cross_cc_unicore32 ;; xtensa|xtensaeb) TARGET_ARCH=xtensa mttcg="yes" + target_compiler=$cross_cc_xtensa ;; *) error_exit "Unsupported target CPU" @@ -6961,6 +7018,27 @@ if [ "$TARGET_BASE_ARCH" = "" ]; then TARGET_BASE_ARCH=$TARGET_ARCH fi +# Do we have a cross compiler for this target? +if has $target_compiler; then + + write_c_skeleton + + if ! do_compiler $target_compiler -o $TMPE $TMPC -static ; then + # For host systems we might get away with building without -static + if ! do_compiler $target_compiler -o $TMPE $TMPC ; then + target_compiler="" + else + enabled_cross_compilers="${enabled_cross_compilers} ${target_compiler}" + target_compiler_static="n" + fi + else + enabled_cross_compilers="${enabled_cross_compilers} ${target_compiler}" + target_compiler_static="y" + fi +else + target_compiler="" +fi + symlink "$source_path/Makefile.target" "$target_dir/Makefile" upper() { @@ -7034,6 +7112,14 @@ if test "$target_bsd_user" = "yes" ; then echo "CONFIG_BSD_USER=y" >> $config_target_mak fi +if test -n "$target_compiler"; then + echo "CROSS_CC_GUEST=$target_compiler" >> $config_target_mak + + if test -n "$target_compiler_static"; then + echo "CROSS_CC_GUEST_STATIC=$target_compiler_static" >> $config_target_mak + fi +fi + # generate QEMU_CFLAGS/LDFLAGS for targets cflags="" @@ -7156,6 +7242,12 @@ echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak done # for target in $targets +if test -n "$enabled_cross_compilers"; then + echo + echo "NOTE: cross-compilers enabled:" + printf '%s\n' $enabled_cross_compilers | sort -u +fi + if [ "$fdt" = "git" ]; then echo "config-host.h: subdir-dtc" >> $config_host_mak fi