3rd-party/linux-kernel-module-cheat
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rr test

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Ciro Santilli
2018-04-08 14:30:31 +01:00
parent 105c506ac6
commit 9513c162ef
5 changed files with 78 additions and 2 deletions
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2
qemu

Submodule qemu updated: 8dbff6d372...08e173f294

24
rec Executable file
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@@ -0,0 +1,24 @@
#!/usr/bin/env bash
cmd="\
time \
./out/x86_64/buildroot/host/usr/bin/qemu-system-x86_64 \
-M pc \
-append 'root=/dev/sda console=ttyS0 nokaslr printk.time=y - lkmc_eval=\"/rand_check.out;/sbin/ifup -a;wget -S google.com;/poweroff.out;\"' \
-kernel 'out/x86_64/buildroot/images/bzImage' \
-nographic \
\
-drive file=out/x86_64/buildroot/images/rootfs.ext2.qcow2,if=none,id=img-direct,format=qcow2 \
-drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay \
-device ide-hd,drive=img-blkreplay \
\
-netdev user,id=net1 \
-device rtl8139,netdev=net1 \
-object filter-replay,id=replay,netdev=net1 \
"
echo "$cmd"
#eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
# Different than previous.
eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
# Same as previous.
eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin'"
#eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin' -S -s"

25
recaarch64 Executable file
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@@ -0,0 +1,25 @@
#!/usr/bin/env bash
set -ex
# TODO has not network but replays fine
# -device rtl8139,netdev=net1 \
# Has network, but replay hangs.
#-device virtio-net-device,netdev=net1 \
cmd="\
time \
./buildroot/output.aarch64~/host/usr/bin/qemu-system-aarch64 \
-M virt \
-cpu cortex-a57 \
-append 'root=/dev/sda nokaslr norandmaps printk.devkmsg=on printk.time=y - lkmc_eval=\"/rand_check.out;wget -S google.com;/poweroff.out;\"' \
-kernel ./buildroot/output.aarch64~/images/Image \
-nographic \
\
-device virtio-net-device,netdev=net1 \
-netdev user,id=net1 \
-object filter-replay,id=replay,netdev=net1 \
"
echo "$cmd"
eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin'"

28
recarm Executable file
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@@ -0,0 +1,28 @@
#!/usr/bin/env bash
set -ex
# TODO try to use disk image instead of initrd, fails if I add any of:
#-device lsi,id=scsi0
#-device scsi-hd,drive=img-blkreplay
# Without either, super slow:
#-drive file=./buildroot/output.arm~/images/rootfs.ext2,if=scsi,id=img-direct,format=raw \
#-drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay \
cmd="\
time \
./buildroot/output.arm~/host/usr/bin/qemu-system-arm \
-M versatilepb \
-append 'root=/dev/sda nokaslr norandmaps printk.devkmsg=on printk.time=y - lkmc_eval=\"/rand_check.out;wget -S google.com;/poweroff.out;\"' \
-kernel ./buildroot/output.arm~/images/zImage \
-dtb ./buildroot/output.arm~/images/versatile-pb.dtb \
-serial stdio \
\
-initrd ./buildroot/output.arm~/images/rootfs.cpio \
\
-netdev user,id=net1 \
-device rtl8139,netdev=net1 \
-object filter-replay,id=replay,netdev=net1 \
"
echo "$cmd"
eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin'"

1
run
View File

@@ -208,7 +208,6 @@ ${qemu_common} \
-M pc \
-append '${root} nopat ${extra_append}' \
-device edu \
-device lkmc_pci_min \
-device virtio-net-pci,netdev=net0 \
-kernel '${images_dir}/bzImage' \
${extra_flags} \