Date: Mon, 2 Sep 2024 06:54:12 -0400 From: Dennis Clarke <dclarke@blastwave.org> To: riscv@FreeBSD.org Subject: kldxref: /boot/kernel/kernel: no ELF relocation table found Message-ID: <8a58b38a-b7fb-494e-a730-e4c341aaa9ee@blastwave.org>
next in thread | raw e-mail | index | archive | help
All:
Ye ol "make installkernel" starts nicely but ends a little odd :
e# make installkernel
--------------------------------------------------------------
>>> Install check kernel
--------------------------------------------------------------
--------------------------------------------------------------
>>> Installing kernel GENERIC on Mon Sep 2 10:10:05 UTC 2024
--------------------------------------------------------------
cd /usr/obj/usr/src/riscv.riscv64/sys/GENERIC; MACHINE_ARCH=riscv64
MACHINE=riscv CPUTYPE= CC="cc -target riscv64-unknown-freebsd15.0
--sysroot=/usr/obj/usr/src/riscv.riscv64/tmp
-B/usr/obj/usr/src/riscv.riscv64/tmp/usr/bin" CXX="c++ -target
riscv64-unknown-freebsd15.0 --sysroot=/usr/obj/usr/src/riscv.riscv64/tmp
-B/usr/obj/usr/src/riscv.riscv64/tmp/usr/bin" CPP="cpp -target
riscv64-unknown-freebsd15.0 --sysroot=/usr/obj/usr/src/riscv.riscv64/tmp
-B/usr/obj/usr/src/riscv.riscv64/tmp/usr/bin" AS="as" AR="ar"
ELFCTL="elfctl" LD="ld" LLVM_LINK="" NM=nm OBJCOPY="objcopy"
RANLIB=ranlib STRINGS= SIZE="size" STRIPBIN="strip"
PATH=/usr/obj/usr/src/riscv.riscv64/tmp/bin:/usr/obj/usr/src/riscv.riscv64/tmp/usr/sbin:/usr/obj/usr/src/riscv.riscv64/tmp/usr/bin:/usr/obj/usr/src/riscv.riscv64/tmp/legacy/usr/sbin:/usr/obj/usr/src/riscv.riscv64/tmp/legacy/usr/bin:/usr/obj/usr/src/riscv.riscv64/tmp/legacy/bin:/usr/obj/usr/src/riscv.riscv64/tmp/legacy/usr/libexec::/sbin:/bin:/usr/sbin:/usr/bin
make KERNEL=kernel METALOG= install
thiskernel=`sysctl -n kern.bootfile || echo /boot/kernel/kernel` ; if [
! "`dirname "$thiskernel"`" -ef /boot/kernel ] ; then chflags -R noschg
/boot/kernel ; rm -rf /boot/kernel ; rm -rf /usr/lib/debug/boot/kernel
; else if [ -d /boot/kernel.old ] ; then chflags -R noschg
/boot/kernel.old ; rm -rf /boot/kernel.old ; fi ; mv /boot/kernel
/boot/kernel.old ; if [ -n "/usr/lib/debug" -a -d
/usr/lib/debug/boot/kernel ]; then rm -rf
/usr/lib/debug/boot/kernel.old ; mv /usr/lib/debug/boot/kernel
/usr/lib/debug/boot/kernel.old ; fi ; sysctl
kern.bootfile=/boot/kernel.old/"`basename "$thiskernel"`" ; fi
kern.bootfile: /boot/kernel/kernel -> /boot/kernel.old/kernel
mkdir -p /boot/kernel
install -p -m 444 -o root -g wheel kernel /boot/kernel/
mkdir -p /usr/lib/debug/boot/kernel
install -p -m 444 -o root -g wheel kernel.debug /usr/lib/debug/boot/kernel/
cd /usr/src/sys/modules;
MAKEOBJDIRPREFIX=/usr/obj/usr/src/riscv.riscv64/sys/GENERIC/modules
KMODDIR=/boot/kernel MACHINE_CPUARCH=riscv MACHINE=riscv
MACHINE_ARCH=riscv64 MODULES_EXTRA="dtb/sifive" WITHOUT_MODULES=""
ARCH_FLAGS="" DEBUG_FLAGS="-g" __MPATH=""
KERNBUILDDIR="/usr/obj/usr/src/riscv.riscv64/sys/GENERIC"
SYSDIR="/usr/src/sys" MODULE_TIED=yes WITH_CTF="1" make install
===> accf_data (install)
install -T release -o root -g wheel -m 444 accf_data.ko /boot/kernel/
install -T dbg -o root -g wheel -m 444 accf_data.ko.debug
/usr/lib/debug/boot/kernel/
===> accf_dns (install)
install -T release -o root -g wheel -m 444 accf_dns.ko /boot/kernel/
install -T dbg -o root -g wheel -m 444 accf_dns.ko.debug
/usr/lib/debug/boot/kernel/
.
.
. etc etc etc
.
.
===> xz (install)
install -T release -o root -g wheel -m 444 xz.ko /boot/kernel/
install -T dbg -o root -g wheel -m 444 xz.ko.debug
/usr/lib/debug/boot/kernel/
===> zfs (install)
install -T release -o root -g wheel -m 444 zfs.ko /boot/kernel/
install -T dbg -o root -g wheel -m 444 zfs.ko.debug
/usr/lib/debug/boot/kernel/
===> zlib (install)
install -T release -o root -g wheel -m 444 zlib.ko /boot/kernel/
install -T dbg -o root -g wheel -m 444 zlib.ko.debug
/usr/lib/debug/boot/kernel/
kldxref /boot/kernel
kldxref: /boot/kernel/kernel: no ELF relocation table found
--------------------------------------------------------------
>>> Installing kernel GENERIC completed on Mon Sep 2 10:13:55 UTC 2024
--------------------------------------------------------------
So then ... "no ELF relocation table found"?
Looking at https://cgit.freebsd.org/src/tree/usr.sbin/kldxref/ef.c#n220
and then downwards to line 367 :
if (rel_off == 0 && rela_off == 0) {
warnx("%s: no ELF relocation table found\n", ef->ef_name);
error = EFTYPE;
goto out;
}
Which makes me wonder about the ( I hope ) harmless output from this :
# kldxref -dv /boot/kernel
/boot/kernel/accf_data.ko
module accf_data
depends on kernel.1500023 (1500023,1500023)
interface accf_data.1
/boot/kernel/accf_dns.ko
module accf_dns
depends on kernel.1500023 (1500023,1500023)
interface accf_dns.1
.
.
.
/boot/kernel/kern_testfrwk.ko
module kern_testframework
interface kern_testframework.1
depends on kernel.1500023 (1500023,1500023)
/boot/kernel/kernel
kldxref: /boot/kernel/kernel: no ELF relocation table found
kldxref: /boot/kernel/kernel: not a valid DSO or object file:
Inappropriate file type or format
/boot/kernel/kgssapi.ko
module kgssapi
depends on kernel.1500023 (1500023,1500023)
depends on xdr.1 (1,1)
depends on krpc.1 (1,1)
interface kgssapi.1
.
.
.
etc etc
.
.
.
Also I do see this was created :
e# ls -lapb /boot/kernel/linker.hints
-rw-r--r-- 1 root wheel 212416 Sep 2 10:13 /boot/kernel/linker.hints
e#
Looking over the output from "readelf -delV /boot/kernel.old/kernel" as
well as this new kernel they both look very similar. Addresses and some
other bits changed of course.
So therefore the situation :
( 1 ) well understood and just a normal red herring[1]
( 2 ) ignore it
( 3 ) huh? that's weird. never saw that before.
Curious what is going on there.
--
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
[1] see Requesting program interpreter: /red/herring :)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?8a58b38a-b7fb-494e-a730-e4c341aaa9ee>