Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 608 insertions, 0 deletions

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
new file mode 100755
index 000000000..352d7de24
--- /dev/null
+++ b/arch/powerpc/boot/wrapper
@@ -0,0 +1,608 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org>
+
+# This script takes a kernel binary and optionally an initrd image
+# and/or a device-tree blob, and creates a bootable zImage for a
+# given platform.
+
+# Options:
+# -o zImage	specify output file
+# -p platform	specify platform (links in $platform.o)
+# -i initrd	specify initrd file
+# -d devtree	specify device-tree blob
+# -s tree.dts	specify device-tree source file (needs dtc installed)
+# -e esm_blob   specify ESM blob for secure images
+# -c		cache $kernel.strip.gz (use if present & newer, else make)
+# -C prefix	specify command prefix for cross-building tools
+#		(strip, objcopy, ld)
+# -D dir	specify directory containing data files used by script
+#		(default ./arch/powerpc/boot)
+# -W dir	specify working directory for temporary files (default .)
+# -z		use gzip (legacy)
+# -Z zsuffix    compression to use (gz, xz or none)
+
+# Stop execution if any command fails
+set -e
+
+export LC_ALL=C
+
+# Allow for verbose output
+if [ "$V" = 1 ]; then
+    set -x
+    map="-Map wrapper.map"
+fi
+
+# defaults
+kernel=
+ofile=zImage
+platform=of
+initrd=
+dtb=
+dts=
+esm_blob=
+cacheit=
+binary=
+compression=.gz
+uboot_comp=gzip
+pie=
+format=
+notext=
+rodynamic=
+
+# cross-compilation prefix
+CROSS=
+
+# mkimage wrapper script
+MKIMAGE=$srctree/scripts/mkuboot.sh
+
+# directory for object and other files used by this script
+object=arch/powerpc/boot
+objbin=$object
+dtc=scripts/dtc/dtc
+
+# directory for working files
+tmpdir=.
+
+usage() {
+    echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
+    echo '       [-d devtree] [-s tree.dts] [-e esm_blob]' >&2
+    echo '       [-c] [-C cross-prefix] [-D datadir] [-W workingdir]' >&2
+    echo '       [-Z (gz|xz|none)] [--no-compression] [vmlinux]' >&2
+    exit 1
+}
+
+run_cmd() {
+    if [ "$V" = 1 ]; then
+        $* 2>&1
+    else
+        local msg
+
+        set +e
+        msg=$($* 2>&1)
+
+        if [ $? -ne "0" ]; then
+                echo $msg
+                exit 1
+        fi
+        set -e
+    fi
+}
+
+while [ "$#" -gt 0 ]; do
+    case "$1" in
+    -o)
+	shift
+	[ "$#" -gt 0 ] || usage
+	ofile="$1"
+	;;
+    -p)
+	shift
+	[ "$#" -gt 0 ] || usage
+	platform="$1"
+	;;
+    -i)
+	shift
+	[ "$#" -gt 0 ] || usage
+	initrd="$1"
+	;;
+    -d)
+	shift
+	[ "$#" -gt 0 ] || usage
+	dtb="$1"
+	;;
+    -e)
+	shift
+	[ "$#" -gt 0 ] || usage
+	esm_blob="$1"
+	;;
+    -s)
+	shift
+	[ "$#" -gt 0 ] || usage
+	dts="$1"
+	;;
+    -c)
+	cacheit=y
+	;;
+    -C)
+	shift
+	[ "$#" -gt 0 ] || usage
+	CROSS="$1"
+	;;
+    -D)
+	shift
+	[ "$#" -gt 0 ] || usage
+	object="$1"
+	objbin="$1"
+	;;
+    -W)
+	shift
+	[ "$#" -gt 0 ] || usage
+	tmpdir="$1"
+	;;
+    -z)
+	compression=.gz
+	uboot_comp=gzip
+	;;
+    -Z)
+	shift
+	[ "$#" -gt 0 ] || usage
+        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "lzo" -o "$1" != "none" ] || usage
+
+	compression=".$1"
+	uboot_comp=$1
+
+        if [ $compression = ".none" ]; then
+                compression=
+		uboot_comp=none
+        fi
+	if [ $uboot_comp = "gz" ]; then
+		uboot_comp=gzip
+	fi
+	;;
+    --no-gzip)
+        # a "feature" of the wrapper script is that it can be used outside
+        # the kernel tree. So keeping this around for backwards compatibility.
+        compression=
+	uboot_comp=none
+        ;;
+    -?)
+	usage
+	;;
+    *)
+	[ -z "$kernel" ] || usage
+	kernel="$1"
+	;;
+    esac
+    shift
+done
+
+
+if [ -n "$dts" ]; then
+    if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then
+	dts="$object/dts/$dts"
+    fi
+    if [ -z "$dtb" ]; then
+	dtb="$platform.dtb"
+    fi
+    $dtc -O dtb -o "$dtb" -b 0 "$dts"
+fi
+
+if [ -z "$kernel" ]; then
+    kernel=vmlinux
+fi
+
+LC_ALL=C elfformat="`${CROSS}objdump -p "$kernel" | grep 'file format' | awk '{print $4}'`"
+case "$elfformat" in
+    elf64-powerpcle)	format=elf64lppc	;;
+    elf64-powerpc)	format=elf32ppc	;;
+    elf32-powerpc)	format=elf32ppc	;;
+esac
+
+ld_version()
+{
+    # Poached from scripts/ld-version.sh, but we don't want to call that because
+    # this script (wrapper) is distributed separately from the kernel source.
+    # Extract linker version number from stdin and turn into single number.
+    awk '{
+	gsub(".*\\)", "");
+	gsub(".*version ", "");
+	gsub("-.*", "");
+	split($1,a, ".");
+	if( length(a[3]) == "8" )
+		# a[3] is probably a date of format yyyymmdd used for release snapshots. We
+		# can assume it to be zero as it does not signify a new version as such.
+		a[3] = 0;
+	print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
+	exit
+    }'
+}
+
+ld_is_lld()
+{
+	${CROSS}ld -V 2>&1 | grep -q LLD
+}
+
+# Do not include PT_INTERP segment when linking pie. Non-pie linking
+# just ignores this option.
+LD_VERSION=$(${CROSS}ld --version | ld_version)
+LD_NO_DL_MIN_VERSION=$(echo 2.26 | ld_version)
+if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
+	nodl="--no-dynamic-linker"
+fi
+
+# suppress some warnings in recent ld versions
+nowarn="-z noexecstack"
+if ! ld_is_lld; then
+	if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then
+		nowarn="$nowarn --no-warn-rwx-segments"
+	fi
+fi
+
+platformo=$object/"$platform".o
+lds=$object/zImage.lds
+ext=strip
+objflags=-S
+tmp=$tmpdir/zImage.$$.o
+ksection=.kernel:vmlinux.strip
+isection=.kernel:initrd
+esection=.kernel:esm_blob
+link_address='0x400000'
+make_space=y
+
+
+if [ -n "$esm_blob" -a "$platform" != "pseries" ]; then
+    echo "ESM blob not support on non-pseries platforms" >&2
+    exit 1
+fi
+
+case "$platform" in
+of)
+    platformo="$object/of.o $object/epapr.o"
+    make_space=n
+    ;;
+pseries)
+    platformo="$object/pseries-head.o $object/of.o $object/epapr.o"
+    link_address='0x4000000'
+    if [ "$format" != "elf32ppc" ]; then
+	link_address=
+	pie=-pie
+    fi
+    make_space=n
+    ;;
+maple)
+    platformo="$object/of.o $object/epapr.o"
+    link_address='0x400000'
+    make_space=n
+    ;;
+pmac|chrp)
+    platformo="$object/of.o $object/epapr.o"
+    make_space=n
+    ;;
+coff)
+    platformo="$object/crt0.o $object/of.o $object/epapr.o"
+    lds=$object/zImage.coff.lds
+    link_address='0x500000'
+    make_space=n
+    pie=
+    ;;
+miboot|uboot*)
+    # miboot and U-boot want just the bare bits, not an ELF binary
+    ext=bin
+    objflags="-O binary"
+    tmp="$ofile"
+    ksection=image
+    isection=initrd
+    ;;
+cuboot*)
+    binary=y
+    compression=
+    case "$platform" in
+    *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc)
+        platformo=$object/cuboot-8xx.o
+        ;;
+    *5200*|*-motionpro)
+        platformo=$object/cuboot-52xx.o
+        ;;
+    *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
+        platformo=$object/cuboot-pq2.o
+        ;;
+    *-mpc824*)
+        platformo=$object/cuboot-824x.o
+        ;;
+    *-mpc83*|*-asp834x*)
+        platformo=$object/cuboot-83xx.o
+        ;;
+    *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*)
+        platformo=$object/cuboot-85xx-cpm2.o
+        ;;
+    *-mpc85*|*-tqm85*)
+        platformo=$object/cuboot-85xx.o
+        ;;
+    *-amigaone)
+        link_address='0x800000'
+        ;;
+    esac
+    ;;
+ps3)
+    platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
+    lds=$object/zImage.ps3.lds
+    compression=
+    ext=bin
+    objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
+    ksection=.kernel:vmlinux.bin
+    isection=.kernel:initrd
+    link_address=''
+    make_space=n
+    pie=
+    ;;
+ep88xc|ep405|ep8248e)
+    platformo="$object/fixed-head.o $object/$platform.o"
+    binary=y
+    ;;
+adder875-redboot)
+    platformo="$object/fixed-head.o $object/redboot-8xx.o"
+    binary=y
+    ;;
+simpleboot-*)
+    platformo="$object/fixed-head.o $object/simpleboot.o"
+    binary=y
+    ;;
+asp834x-redboot)
+    platformo="$object/fixed-head.o $object/redboot-83xx.o"
+    binary=y
+    ;;
+xpedite52*)
+    link_address='0x1400000'
+    platformo=$object/cuboot-85xx.o
+    ;;
+gamecube|wii)
+    link_address='0x600000'
+    platformo="$object/$platform-head.o $object/$platform.o"
+    ;;
+microwatt)
+    link_address='0x500000'
+    platformo="$object/fixed-head.o $object/$platform.o"
+    binary=y
+    ;;
+treeboot-currituck)
+    link_address='0x1000000'
+    ;;
+treeboot-akebono)
+    link_address='0x1000000'
+    ;;
+treeboot-iss4xx-mpic)
+    platformo="$object/treeboot-iss4xx.o"
+    ;;
+epapr)
+    platformo="$object/pseries-head.o $object/epapr.o $object/epapr-wrapper.o"
+    link_address='0x20000000'
+    pie=-pie
+    notext='-z notext'
+    rodynamic=$(if ${CROSS}ld -V 2>&1 | grep -q LLD ; then echo "-z rodynamic"; fi)
+    ;;
+mvme5100)
+    platformo="$object/fixed-head.o $object/mvme5100.o"
+    binary=y
+    ;;
+mvme7100)
+    platformo="$object/motload-head.o $object/mvme7100.o"
+    link_address='0x4000000'
+    binary=y
+    ;;
+esac
+
+vmz="$tmpdir/`basename \"$kernel\"`.$ext"
+
+# Calculate the vmlinux.strip size
+${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
+strip_size=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" "$vmz.$$")
+
+if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel" ]; then
+    # recompress the image if we need to
+    case $compression in
+    .xz)
+        xz --check=crc32 -f -6 "$vmz.$$"
+        ;;
+    .gz)
+        gzip -n -f -9 "$vmz.$$"
+        ;;
+    .lzma)
+        xz --format=lzma -f -6 "$vmz.$$"
+	;;
+    .lzo)
+        lzop -f -9 "$vmz.$$"
+	;;
+    *)
+        # drop the compression suffix so the stripped vmlinux is used
+        compression=
+	uboot_comp=none
+	;;
+    esac
+
+    if [ -n "$cacheit" ]; then
+	mv -f "$vmz.$$$compression" "$vmz$compression"
+    else
+	vmz="$vmz.$$"
+    fi
+else
+    rm -f $vmz.$$
+fi
+
+vmz="$vmz$compression"
+
+if [ "$make_space" = "y" ]; then
+	# Round the size to next higher MB limit
+	round_size=$(((strip_size + 0xfffff) & 0xfff00000))
+
+	round_size=0x$(printf "%x" $round_size)
+	link_addr=$(printf "%d" $link_address)
+
+	if [ $link_addr -lt $strip_size ]; then
+	    echo "INFO: Uncompressed kernel (size 0x$(printf "%x\n" $strip_size))" \
+			"overlaps the address of the wrapper($link_address)"
+	    echo "INFO: Fixing the link_address of wrapper to ($round_size)"
+	    link_address=$round_size
+	fi
+fi
+
+# Extract kernel version information, some platforms want to include
+# it in the image header
+version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
+    head -n1 | cut -d' ' -f3`
+if [ -n "$version" ]; then
+    uboot_version="-n Linux-$version"
+fi
+
+# physical offset of kernel image
+membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
+
+case "$platform" in
+uboot)
+    rm -f "$ofile"
+    ${MKIMAGE} -A ppc -O linux -T kernel -C $uboot_comp -a $membase -e $membase \
+	$uboot_version -d "$vmz" "$ofile"
+    if [ -z "$cacheit" ]; then
+	rm -f "$vmz"
+    fi
+    exit 0
+    ;;
+uboot-obs600)
+    rm -f "$ofile"
+    # obs600 wants a multi image with an initrd, so we need to put a fake
+    # one in even when building a "normal" image.
+    if [ -n "$initrd" ]; then
+	real_rd="$initrd"
+    else
+	real_rd=`mktemp`
+	echo "\0" >>"$real_rd"
+    fi
+    ${MKIMAGE} -A ppc -O linux -T multi -C gzip -a $membase -e $membase \
+	$uboot_version -d "$vmz":"$real_rd":"$dtb" "$ofile"
+    if [ -z "$initrd" ]; then
+	rm -f "$real_rd"
+    fi
+    if [ -z "$cacheit" ]; then
+	rm -f "$vmz"
+    fi
+    exit 0
+    ;;
+esac
+
+addsec() {
+    ${CROSS}objcopy $4 $1 \
+	--add-section=$3="$2" \
+	--set-section-flags=$3=contents,alloc,load,readonly,data
+}
+
+addsec $tmp "$vmz" $ksection $object/empty.o
+if [ -z "$cacheit" ]; then
+    rm -f "$vmz"
+fi
+
+if [ -n "$initrd" ]; then
+    addsec $tmp "$initrd" $isection
+fi
+
+if [ -n "$dtb" ]; then
+    addsec $tmp "$dtb" .kernel:dtb
+    if [ -n "$dts" ]; then
+	rm $dtb
+    fi
+fi
+
+if [ -n "$esm_blob" ]; then
+    addsec $tmp "$esm_blob" $esection
+fi
+
+if [ "$platform" != "miboot" ]; then
+    if [ -n "$link_address" ] ; then
+        text_start="-Ttext $link_address"
+    fi
+#link everything
+    ${CROSS}ld -m $format -T $lds $text_start $pie $nodl $nowarn $rodynamic $notext -o "$ofile" $map \
+	$platformo $tmp $object/wrapper.a
+    rm $tmp
+fi
+
+# Some platforms need the zImage's entry point and base address
+base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
+entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
+
+if [ -n "$binary" ]; then
+    mv "$ofile" "$ofile".elf
+    ${CROSS}objcopy -O binary "$ofile".elf "$ofile"
+fi
+
+# post-processing needed for some platforms
+case "$platform" in
+pseries|chrp|maple)
+    $objbin/addnote "$ofile"
+    ;;
+coff)
+    ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
+    $objbin/hack-coff "$ofile"
+    ;;
+cuboot*)
+    gzip -n -f -9 "$ofile"
+    ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
+            $uboot_version -d "$ofile".gz "$ofile"
+    ;;
+treeboot*)
+    mv "$ofile" "$ofile.elf"
+    $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry"
+    if [ -z "$cacheit" ]; then
+	rm -f "$ofile.elf"
+    fi
+    exit 0
+    ;;
+ps3)
+    # The ps3's loader supports loading a gzipped binary image from flash
+    # rom to ram addr zero. The loader then enters the system reset
+    # vector at addr 0x100.  A bootwrapper overlay is used to arrange for
+    # a binary image of the kernel to be at addr zero, and yet have a
+    # suitable bootwrapper entry at 0x100.  To construct the final rom
+    # image 512 bytes from offset 0x100 is copied to the bootwrapper
+    # place holder at symbol __system_reset_kernel.  The 512 bytes of the
+    # bootwrapper entry code at symbol __system_reset_overlay is then
+    # copied to offset 0x100.  At runtime the bootwrapper program copies
+    # the data at __system_reset_kernel back to addr 0x100.
+
+    system_reset_overlay=0x`${CROSS}nm "$ofile" \
+        | grep ' __system_reset_overlay$'       \
+        | cut -d' ' -f1`
+    system_reset_overlay=`printf "%d" $system_reset_overlay`
+    system_reset_kernel=0x`${CROSS}nm "$ofile" \
+        | grep ' __system_reset_kernel$'       \
+        | cut -d' ' -f1`
+    system_reset_kernel=`printf "%d" $system_reset_kernel`
+    overlay_dest="256"
+    overlay_size="512"
+
+    ${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
+
+    run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc   \
+        skip=$overlay_dest seek=$system_reset_kernel          \
+        count=$overlay_size bs=1
+
+    run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc   \
+        skip=$system_reset_overlay seek=$overlay_dest         \
+        count=$overlay_size bs=1
+
+    odir="$(dirname "$ofile.bin")"
+
+    # The ps3's flash loader has a size limit of 16 MiB for the uncompressed
+    # image.  If a compressed image that exceeded this limit is written to
+    # flash the loader will decompress that image until the 16 MiB limit is
+    # reached, then enter the system reset vector of the partially decompressed
+    # image.  No warning is issued.
+    rm -f "$odir"/{otheros,otheros-too-big}.bld
+    size=$(${CROSS}nm --no-sort --radix=d "$ofile" | grep -E ' _end$' | cut -d' ' -f1)
+    bld="otheros.bld"
+    if [ $size -gt $((0x1000000)) ]; then
+        bld="otheros-too-big.bld"
+    fi
+    gzip -n --force -9 --stdout "$ofile.bin" > "$odir/$bld"
+    ;;
+esac