Integrate cross compile support into mkroot, ala "make root CROSS=sh4"
This commit is contained in:
Rob Landley
parent
ec6ab53515
commit
ce62207877
3
configure
vendored
3
configure
vendored
@ -11,9 +11,6 @@ then
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exit $?
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fi
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# A synonym.
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[ -z "$CROSS_COMPILE" ] && CROSS_COMPILE="$CROSS"
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# CFLAGS and OPTIMIZE are different so you can add extra CFLAGS without
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# disabling default optimizations
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[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts -Werror=implicit-function-declaration"
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@ -1,66 +0,0 @@
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#!/bin/bash
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# Convenience wrapper to set $CROSS_COMPILE from short name using "ccc"
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# symlink (Cross C Compiler) to a directory of cross compilers named
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# $TARGET-*-cross. Tested with scripts/mcm-buildall.sh output.
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# Usage: scripts/cross.sh $TARGET make distclean defconfig toybox
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# With no arguments, lists available targets. Use target "all" to iterate
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# through each $TARGET from the list.
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trap "exit 1" INT
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CCC="$(dirname "$(readlink -f "$0")")"/../ccc
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if [ ! -d "$CCC" ]
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then
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echo "Create symlink 'ccc' to cross compiler directory, ala:"
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echo " ln -s ~/musl-cross-make/ccc ccc"
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exit 1
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fi
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unset X Y
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# Display target list?
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list()
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{
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ls "$CCC" | sed -n 's/-.*//p' | sort -u | xargs
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}
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[ $# -eq 0 ] && list && exit
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[ -z "$TOP" ] && TOP="$PWD/root/log"
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mkdir -p "$TOP" || exit 1
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X="$1"
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shift
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# build all targets?
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if [ "$X" == all ]
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then
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for TARGET in $(list)
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do
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LOG="$TOP/cross-log-$TARGET"
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{
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export TARGET
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echo -en "\033]2;$TARGET $*\007"
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rm -f "$LOG".{failed,success}
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"$0" $TARGET "$@" 2>&1
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X=$?
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[ $X -eq 0 ] && mv "$LOG".{txt,success}
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} |& tee "$LOG".txt
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[ ! -e "$LOG".success ] && { mv "$LOG".{txt,failed};[ -z "$ALL" ] && break;}
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done
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exit
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fi
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# Call command with CROSS_COMPILE= as its first argument
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Y=$(echo "$CCC/$X"-*cross)
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Z=$(basename "$Y")
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Y=$(readlink -f "$CCC"/$X-*cross)
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export TARGET="${Z/-*/}"
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X="$Y/bin/${Z/-cross/-}"
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[ ! -e "${X}cc" ] && echo "${X}cc not found" && exit 1
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CROSS_COMPILE="$X" "$@"
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@ -2,19 +2,33 @@
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# Clear environment variables by restarting script w/bare minimum passed through
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[ -z "$NOCLEAR" ] &&
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exec env -i NOCLEAR=1 HOME="$HOME" PATH="$PATH" LINUX="$LINUX" \
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exec env -i NOCLEAR=1 HOME="$HOME" PATH="$PATH" LINUX="$LINUX" CROSS="$CROSS"\
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CROSS_COMPILE="$CROSS_COMPILE" CROSS_SHORT="$CROSS_SHORT" "$0" "$@"
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die() { echo "$@" >&2; exit 1; }
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announce() { echo -e "\033]2;$CROSS_SHORT $*\007\n=== $*"; }
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getcross() { X="$(echo "$CCC/$1"-*cross/bin/"$1"*-cc)"; echo "${X%cc}"; }
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# assign command line NAME=VALUE args to env vars
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while [ $# -ne 0 ]; do
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X="${1/=*/}" Y="${1#*=}"
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[ "${1/=/}" != "$1" ] && eval "export $X=\"\$Y\"" || echo "unknown $i"
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[ "${1/=/}" != "$1" ] && eval "export $X=\"\$Y\"" || PKG="$PKG $i"
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shift
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done
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if [ ! -z "$CROSS" ]; then
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[ ! -d "${CCC:=$PWD/ccc}" ] && die "No ccc symlink to compiler directory."
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CCCLIST="$(ls "$CCC" | sed -n 's/-.*//p' | sort -u | xargs)"
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if [ "$CROSS" == all ]; then
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for i in $CCCLIST; do CROSS_COMPILE="$(getcross $i)" exec "$0" "$@"; done
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elif [ ! -e "${CROSS_COMPILE:=$(getcross $CROSS)}cc" ]; then
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ls "$CCC" | sed -n 's/-.*//p' | sort -u | xargs
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exit 0
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fi
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fi
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# If we're cross compiling, set appropriate environment variables.
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if [ -z "$CROSS_COMPILE" ]; then
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echo "Building natively"
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if ! cc --static -xc - -o /dev/null <<< "int main(void) {return 0;}"; then
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echo "Warning: host compiler can't create static binaries." >&2
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sleep 3
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@ -23,18 +37,15 @@ else
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CROSS_PATH="$(dirname "$(which "${CROSS_COMPILE}cc")")"
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CROSS_BASE="$(basename "$CROSS_COMPILE")"
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[ -z "$CROSS_SHORT" ] && CROSS_SHORT="${CROSS_BASE/-*/}"
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echo "Cross compiling to $CROSS_SHORT"
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if [ -z "$CROSS_PATH" ]; then
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echo "no ${CROSS_COMPILE}cc in path" >&2
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exit 1
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fi
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[ -z "$CROSS_PATH" ] && die "no ${CROSS_COMPILE}cc in path"
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fi
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echo "Building for ${CROSS_SHORT:=host}"
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# set up directories (can override most of these paths on cmdline)
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TOP="$PWD/root"
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[ -z "$BUILD" ] && BUILD="$TOP/build"
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[ -z "$AIRLOCK" ] && AIRLOCK="$TOP/airlock"
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[ -z "$OUTPUT" ] && OUTPUT="$TOP/${CROSS_SHORT:-host}"
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[ -z "$OUTPUT" ] && OUTPUT="$TOP/$CROSS_SHORT"
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[ -z "$ROOT" ] && ROOT="$OUTPUT/${CROSS_BASE}fs" && rm -rf "$ROOT"
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MYBUILD="$BUILD/${CROSS_BASE:-host-}tmp"
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rm -rf "$MYBUILD" && mkdir -p "$MYBUILD" || exit 1
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@ -42,7 +53,7 @@ rm -rf "$MYBUILD" && mkdir -p "$MYBUILD" || exit 1
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# Stabilize cross compiling by providing known $PATH contents
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if [ ! -z "$CROSS_COMPILE" ]; then
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if [ ! -e "$AIRLOCK/toybox" ]; then
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echo === Create airlock dir
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announce "airlock"
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PREFIX="$AIRLOCK" KCONFIG_CONFIG="$TOP"/.airlock CROSS_COMPILE= \
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make clean defconfig toybox install_airlock &&
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rm "$TOP"/.airlock || exit 1
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@ -99,6 +110,7 @@ echo -e 'root:x:0:\nguest:x:500:\nnobody:x:65534:' > "$ROOT"/etc/group &&
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echo "nameserver 8.8.8.8" > "$ROOT"/etc/resolv.conf || exit 1
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# Build toybox
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announce toybox
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make clean
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make $([ -z .config ] && echo defconfig || echo silentoldconfig)
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LDFLAGS=--static PREFIX="$ROOT" make toybox install || exit 1
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@ -135,7 +147,6 @@ else
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# Each target needs board config, serial console, RTC, ethernet, block device.
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if [ "$TARGET" == armv5l ]; then
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# This could use the same VIRT board as armv7, but let's demonstrate a
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# different one requiring a separate device tree binary.
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QEMU="arm -M versatilepb -net nic,model=rtl8139 -net user"
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@ -172,12 +183,10 @@ else
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elif [ "$TARGET" == powerpc ]; then
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KARCH=powerpc QEMU="ppc -M g3beige" KARGS=ttyS0 VMLINUX=vmlinux
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KCONF=ALTIVEC,PPC_PMAC,PPC_OF_BOOT_TRAMPOLINE,IDE,IDE_GD,IDE_GD_ATA,BLK_DEV_IDE_PMAC,BLK_DEV_IDE_PMAC_ATA100FIRST,MACINTOSH_DRIVERS,ADB,ADB_CUDA,NET_VENDOR_NATSEMI,NET_VENDOR_8390,NE2K_PCI,SERIO,SERIAL_PMACZILOG,SERIAL_PMACZILOG_TTYS,SERIAL_PMACZILOG_CONSOLE,BOOTX_TEXT
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elif [ "$TARGET" == powerpc64le ]; then
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KARCH=powerpc QEMU="ppc64 -M pseries -vga none" KARGS=/dev/hvc0
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VMLINUX=vmlinux
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KCONF=PPC64,PPC_PSERIES,CPU_LITTLE_ENDIAN,PPC_OF_BOOT_TRAMPOLINE,BLK_DEV_SD,SCSI_LOWLEVEL,SCSI_IBMVSCSI,ATA,NET_VENDOR_IBM,IBMVETH,HVC_CONSOLE,PPC_TRANSACTIONAL_MEM,PPC_DISABLE_WERROR,SECTION_MISMATCH_WARN_ONLY
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elif [ "$TARGET" = s390x ] ; then
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QEMU="s390x" KARCH=s390 VMLINUX=arch/s390/boot/bzImage
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KCONF=MARCH_Z900,PACK_STACK,NET_CORE,VIRTIO_NET,VIRTIO_BLK,SCLP_TTY,SCLP_CONSOLE,SCLP_VT220_TTY,SCLP_VT220_CONSOLE,S390_GUEST
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@ -187,9 +196,7 @@ else
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KERNEL_CONFIG="CONFIG_MEMORY_START=0x0c000000"
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KCONF=CPU_SUBTYPE_SH7751R,MMU,VSYSCALL,SH_FPU,SH_RTS7751R2D,RTS7751R2D_PLUS,SERIAL_SH_SCI,SERIAL_SH_SCI_CONSOLE,PCI,NET_VENDOR_REALTEK,8139CP,PCI,BLK_DEV_SD,ATA,ATA_SFF,ATA_BMDMA,PATA_PLATFORM,BINFMT_ELF_FDPIC,BINFMT_FLAT
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#see also SPI SPI_SH_SCI MFD_SM501 RTC_CLASS RTC_DRV_R9701 RTC_DRV_SH RTC_HCTOSYS
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else
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echo "Unknown \$TARGET"
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exit 1
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else die "Unknown \$TARGET"
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fi
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# Write the qemu launch script
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@ -199,7 +206,7 @@ else
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${DTB:+-dtb "$(basename "$DTB")"} > "$OUTPUT/qemu-$TARGET.sh" &&
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chmod +x "$OUTPUT/qemu-$TARGET.sh" &&
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echo "Build linux for $KARCH"
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announce "linux-$KARCH"
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pushd "$LINUX" && make distclean && popd &&
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cp -sfR "$LINUX" "$MYBUILD/linux" && pushd "$MYBUILD/linux" || exit 1
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write_miniconfig > "$OUTPUT/miniconfig-$TARGET" &&
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@ -215,11 +222,13 @@ else
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popd || exit 1
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fi
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for i in $PKG; do announce "$i"; ./$i; done
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rmdir "$MYBUILD" "$BUILD" 2>/dev/null
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# package root filesystem for initramfs.
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# we do it here so module install can add files (not implemented yet)
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echo === create "${CROSS_BASE}root.cpio.gz"
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announce "${CROSS_BASE}root.cpio.gz"
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(cd "$ROOT" && find . | cpio -o -H newc | gzip) > \
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"$OUTPUT/${CROSS_BASE}root.cpio.gz"
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